Method to charge lithium-ion accumulator element and hybrid vehicle

FIELD: electricity.

SUBSTANCE: it is identified, whether the extent of accumulation of a lithium-ion accumulator element has reduced to the first specified value. It is detected, whether a hybrid vehicle is in a stop condition. The lithium-ion accumulator element is charged to the second specified value as the hybrid vehicle motion stops. At the stage of charging the period is separated into two or more separate periods of charging and periods without charging. Charging is carried out in a separate period of charging. Stop of charging or discharging is carried out in a period without discharging. Duration of each of separate periods of charging makes at least 40 seconds. A hybrid electric vehicle comprises a lithium-ion accumulator element, a device to detect an extent of accumulation of a lithium-ion accumulator element, a device to detect condition of stop, a device of charging control in accordance with the above method.

EFFECT: prevention of accumulator element capacitance reduction.

12 cl, 19 dwg

 

The technical field

[0001] the Present invention relates to a method for charging a lithium-ion battery element and a hybrid vehicle.

The level of technology

[0002] Lithium-ion rechargeable element attracts attention as a power source for a portable device or a power source for electric vehicles, hybrid electric vehicles, etc. currently offers various ways to charge the Li-ion battery item (for example, see patent literature 1-3).

Sources list

Patent literature

[0003] Patent literature 1: JP06-36803A

Patent literature 2: JP06-325795A

Patent literature 3: JP2004-171864A

[0004] Patent literature 1 discloses a charging method using such a pulse current, which repeats the power supply and suspension of supply. In particular, repeated power supply 0.1-10 milliseconds and suspending power of 0.5 to 100 milliseconds, while the lithium - ion battery charging element. In accordance with this scheme can be prevented growth of the dendrite, and the charging can be repeated many times without the occurrence of failure is charging.

[0005] Patent literature 2 discloses a method of charging, including charging DC before, such as the position of the element reaches the full charge voltage, and after the voltage of the element reaches the full charge voltage, the execution of a periodic charge, which is repeated suspension of charging or charging with a constant current. This scheme can prevent damage to the battery overload and can charge no more and no less than to the voltage of full charge.

[0006] Patent literature 3 discloses such a method periodic charging, in which the power supply and suspension of supply again. In particular, Li-ion rechargeable element is charged with an electric current when charging 20S, with repeated charging for 10 seconds and suspended in 0.8 seconds. This scheme can increase the effective capacity of the element.

Brief description of the invention.

Technical task

[0007] In a hybrid electric vehicle, when the degree of accumulation of lithium-ion battery element is used as a power source for movement and set therein, is lowered to the first predetermined value (for example, the degree of accumulation corresponding to 30% SOC (State of Charge - charge)), lithium-ion rechargeable element can be charged to the extent of accumulation of lithium-ion rechargeable element reaching the second predetermined value (for example, stephenccoleman, corresponding to 60% SOC, while the hybrid electric vehicle stops moving.

[0008] However, when a lithium-ion rechargeable element often and long charging at the cessation of movement of the hybrid vehicle, Li metal can be deposited on the surface of the negative electrode. It is believed that this is because Li ions that are not joined to the negative electrode, is deposited as a metal Li on the surface of the negative electrode due to the diffusion of the aggregate of Li ions on the surface of the negative electrode. Thus, the repetition of frequent and long loading may cause the deposition of a large number of metal Li. When the Li metal is deposited on the surface of the negative electrode, Li metal becomes difficult to facilitate the transfer of charge again as of Li ions, which can lead to significant wear and tear item (significantly reduce the electrical capacitance).

[0009] In the charging method described in patent literature 2, as described above, charging is continuously carried out continuously at a constant current until the charging element reaches the full charge voltage. Thus, when this method of charging is used in the above-mentioned case, Li-ion rechargeable charging element, when the hybrid electric is a mini vehicle stops moving, it is believed that the Li metal is deposited on the surface of the negative electrode at every charge, resulting in premature wear of the element is greatly reduced intensity).

[0010] As described in patent literature 1 and 3, when alternately repeated intermittent charging and suspend charging, idle operation of the hybrid electric vehicle becomes unstable, which may lead to loss of comfort move on hybrid electric vehicle, because the driver and passengers will feel uncomfortable. Thus, methods of charging, disclosed in patent literature 1 and 3, are unfavorable.

[0011] the Present invention is made in view of the above situations, and purpose of the present invention is the provision of a method for charging a lithium-ion battery element is mounted on a hybrid electric vehicle, which is able to suppress the deposition of metal Li on the surface of the negative electrode to suppress the reduction in electricity consumption, as well as preventing loss of comfort from moving to a hybrid electric vehicle and hybrid electric vehicle.

The solution of the problem

[0012] to solve the above problem, a method for charging a lithium-and the frame of the battery element, which is used as a power source for the drive and installed in a hybrid electric vehicle, the method comprises the following stages: definition, fell whether the value of the physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element, to the first preset value; determining whether the hybrid electric vehicle in a state of temporary stop; and if it is determined that the value of the physical quantity corresponding to the degree of accumulation of lithium-ion battery element is decreased to the first predetermined value, and moreover, when it is determined that the hybrid electric vehicle is in a state of temporary stop charging Li-ion battery item before the value of the physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element reaches the second set value, while the hybrid electric vehicle is stopped at the stage of the charging period, during which Li-ion rechargeable charging element, is divided into two or more separate periods of charging, and provide periods without charging between separate periods of charging, and charging is carried out within the div is a high charge period, and at least one suspending charging or discharging is performed in a period without charge, and the duration of each of the split charging periods is not less than 40 seconds.

[0013] the Present invention relates to a method for charging a lithium-ion battery element is used as a power source for movement and mounted in a hybrid electric vehicle. In this way, when the value of the physical quantity corresponding to the degree of accumulation of lithium-ion battery element, is reduced to the first predetermined value, Li-ion rechargeable charging element, while the value of the physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element reaches the second set value, while the hybrid electric vehicle stops moving.

[0014] In the charging method of the present invention, the charging period during which charging before the value of the physical quantity corresponding to the degree of accumulation, reduced to the first predetermined value reaches a second preset value, is divided into two or more separate periods of charging and periods without charge, provided between separate periods of charging. Within a split is erodov charging charging, and during the period without charging is performed, at least one suspending charging or discharging. At least one suspending charging or discharging is performed during charging from the first set value to the second preset value, in this case, the deposition of metal Li on the surface of the negative electrode can be suppressed. It is believed that this occurs because when the at least one suspending charging or discharging is performed, Li ions are retained on the border of the electrolyte solution and the negative electrode effect of diffusion control, can be dispelled. Thus, in accordance with the charging method of the present invention, the reduction of electricity consumption can be eliminated.

[0015] In the charging method of the present invention, the duration of each separate charge period is not less than 40 seconds. When one split charging period is lengthened, thus, the idling of the vehicle can be stabilized, and therefore, ease of movement on the hybrid electric vehicle is not lost.

"The physical quantity corresponding to a degree of accumulation"means the degree of accumulation and physical value having one correspondence to the degree of accumulation, and includes the SOC (State of Charge " - saracenos is b) and the voltage (the voltage between the terminals of the element).

The first set value may include the degree of accumulation corresponding to 30% SOC and the voltage value between the terminals of the element in this capacity status. The second set value may include the degree of accumulation corresponding to 60% SOC and the voltage value between the terminals of the element in this capacity status.

[0016] At least one suspending charging or discharging is carried out in the period without charge" means that the charging may be suspended for the entire period without charging or discharging can be performed during the entire period without charge. Period without charge, during which charging is suspended and the period without charge, within which the discharge can be combined. Alternatively, a suspension of charging or discharging can be performed within one period without charge.

[0017] In the aforementioned method of charging a lithium-ion rechargeable element, preferably, the period without charge is a period of suspended charging, during which charging lithium ion rechargeable element is suspended, and the ratio tr/tc between the length tc of each of the split charging periods and the duration tr of the period of suspended charging immediately after the split charging period is not less than 0.14 and not more than 0,9.

[0018] In the method is Araki of the present invention, the period without charge is a period of suspended charging. In other words, charging is suspended for the entire period without charge. Thus, separate charging separately carried out in such a way that the suspension fills the gap before the value of the physical quantity corresponding to the degree of accumulation, does not reach the second preset value.

[0019] When the period of suspended charging extremely short relative to the split charging period, Li ions retained on the border between the electrolyte solution and the negative electrode effect of diffusion control, can not be satisfactorily dispersed, and the deposition of metal Li on the surface of the negative electrode cannot be effectively suppressed.

In the charging method of the present invention the ratio tr/tc between the length tc of each of the split charging periods and the duration tr of the period of suspended charging immediately after the split charging period is not less than about 0.14. This condition can suppress the deposition of metal Li on the surface of the negative electrode.

[0020] thus, when the period of suspended charging is long, the deposition of metal Li on the surface of the negative electrode can be suppressed; however, when the period of suspension of charging is too long, the value of the physical quantity corresponding to the degree of accum is modeling Li-ion battery element, may not be restored until the second preset value when the stop-motion hybrid electric vehicles. The period of suspended charging enough to have a duration that allows to happen diffusion of Li ions detained at the border between the electrolyte solution and the negative electrode effect of diffusion control, there is no need to suspend the charge over the relevant period.

On the other hand, in the charging method of the present invention, the ratio tr/tc is not higher than 0.9. This configuration can quickly and properly return the value of the physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element, to the second preset value, without wasting time on inappropriate suspend charging.

[0021] In the above method of charging a lithium-ion rechargeable element, it is preferable that the period without charge was the period of discharge, during which Li-ion rechargeable element is discharged.

[0022] during the period without charging the discharge may dissipate Li ions faster than in case of suspension of charging. Thus, in the charging method of the present invention, the period without charge is the period of discharge. Namely, the discharge is carried out during the whole period without the Araki. Thus, separate charging are performed separately, so that the discharge is switched on between them before the value of the physical quantity corresponding to the degree of accumulation reaches a second preset value. In accordance with this scheme lithium ion rechargeable element with the value of a physical quantity, descended to the first given value, can be rapidly charged until the value reaches the second specified value.

[0023] In the above method of charging a lithium-ion battery element is preferably, each of the periods without charging is a period of suspended charging, during which charging lithium ion rechargeable element is suspended, or the discharge period during which the lithium-ion auxiliary battery is discharged.

[0024] In each period without charge when it comes to the suspension of charging or discharging, Li ions deposited on the surface of the negative electrode can be satisfactorily dispersed. Thus, in the charging method of the present invention each period without charge includes the period of suspension of the charge or discharge period. That is, in each period without charging is suspending charging or discharging. Thus, separate charging assests who are separated so that that pause charging or discharging included between them before the value of the physical quantity corresponding to the degree of accumulation reaches a second preset value. In accordance with this scheme reduces electrical capacity can be excluded.

[0025] the Above method of charging a lithium-ion battery element is, preferably, further includes the steps: determining whether the engine is installed in a hybrid electric vehicle in a running state; and issuing commands to start the engine, if it is determined that the engine is not running, being in the stage of charging in such a state that the generator is mounted on a hybrid electric engine, is driven by the engine, and the electric power produced by the generator is supplied by a lithium-ion rechargeable element for charging Li-ion rechargeable element.

[0026] In the charging method of the present invention determines whether the engine mounted on the hybrid electric vehicle in a running condition. When it is determined that the engine is not running, the command to start the engine. In accordance with this scheme, the electrical energy produced by the generator mounted on the hybrid electric tra the transport vehicle, can be served on Li-ion rechargeable element in this state, when the generator is driven by the engine. Thus, electrical energy lithium-ion battery element in which the value of the physical quantity corresponding to the degree of accumulation, lowered to the first predetermined value may be properly charged before the value of the physical quantity reaches a second specified value.

[0027] In the above method of charging a lithium-ion battery element is preferably defining 1C as the current value, allowing you to charge theoretical electric capacity at 1 hour, which can theoretically be stuck at the maximum value of the active material of the positive electrode contained in the lithium-ion rechargeable element, Li-ion rechargeable element charging current having a value not less than 2C at the stage of charging.

[0028] In the charging method according to the present invention is a lithium-ion rechargeable element charging current having a value not less than 2C. When lithium-ion rechargeable charging element such a strong current, lithium-ion battery element in which the value of the physical quantity corresponding to the degree of accumulation, lowered to the first predetermined value is, can be charged in a shorter period of time so that the value of the physical quantity reaches a second specified value.

[0029] When the charging current is high, the charging time can be reduced as described above. However, the Li ions are easily stored on the border between the electrolyte solution and the negative electrode effect of diffusion control of Li ions. However, in the charging method of the present invention, as described above, due to the fact that at least one suspending charging or discharging is carried out when charging from the first set value to the second preset value, Li ions remaining on the border between the electrolyte solution and the negative electrode, can be dispersed, and thus can be prevented deposition of metal Li on the surface of the negative electrode.

[0030] Preferably, with increasing charging current Li-ion rechargeable element can be charged so that the value of the physical quantity reaches a second preset value in less time. However, when the charge current is higher, the wear element, charging systems and other accelerated. Thus, it is preferable that the magnitude of the charging current was, for example, not less than 2 and no more than 10 seconds.

[0031] To solve the above problems is provided a hybrid electric is some vehicle, contains: Li-ion rechargeable element, which is used as a power source for movement, and mounted on a hybrid electric vehicle; the device of the first definition that defines decreased if the value of the physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element, to the first preset value; a device for determining the state of the stop, which determines whether the hybrid electric vehicle in the stopped state when the movement; and the control device is charging, which, when it is determined that the value of the physical quantity corresponding to the degree of accumulation of lithium-ion battery element is decreased to the first predetermined value and additionally, when it is determined that the hybrid electric vehicle is in the stopped state when the movement controls the charging lithium ion rechargeable element before the value of the physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element reaches a second preset value, when the hybrid electric vehicle stops moving, where device controls the charge share period during which Li-ion rechargeable element for Agueda, two or more separate charging period and the periods without charge, provided between the split charging periods, and performs at least one suspension of charging or discharging in the period without charge, and the duration of each separate charge period is not less than 40 seconds.

[0032] When the value of the physical quantity corresponding to the degree of accumulation of lithium-ion battery element is used as a power source for movement and is installed in a hybrid electric vehicle according to the present invention, is lowered to the first predetermined value, the control unit charging hybrid electric vehicle controls the charging lithium ion rechargeable element before the value of the physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element reaches a second preset value, when the hybrid electric vehicle stops moving. The device control charge share period during which charging until the value of the physical quantity corresponding to the degree of accumulation of lithium-ion auxiliary battery falling to the first preset value, reaches a second preset value, two or more of otdelnyh periods of the charging period without charge, provided between separate periods of charging. Further, the control device performs charging charging in separate charging period and carries out at least one suspension of charging or discharging in the period without charge.

[0033] As described above, when at least one suspending charging or discharging during the charging period from the first specified value to the second preset value, the deposition of metal Li on poverhnosti negative electrode can be eliminated. It is believed that this is because, when at least one suspending charging or discharging, it is possible to disperse the ions Li withheld at the boundary between the electrolyte solution and the negative electrode effect of diffusion control. Thus, in a hybrid electric vehicle according to the present invention it is possible to remove the lower electrical capacity Li-ion battery element, which is used as a power source for movement and installed it.

[0034] Further, in a hybrid electric vehicle according to the present invention, the control unit sets the charging duration of each separate charging period of not less than 40 seconds. When the split charging period is of such duration, idle mode g is Bednogo electric vehicle can be stabilized and, thus, the comfort of movement is not lost.

[0035] Further, in the above hybrid electric vehicle, preferably, the control device exercises are designed in such a way that the period without charge is a period of suspended charging, during which charging lithium ion rechargeable element is suspended, and the ratio tr/tc between the length tc of each separate charging period and the duration tr of the period of suspended charging immediately after the split charging period is not less than 0.14 and not more than 0.9, the control device controls the charging charging lithium ion rechargeable element.

[0036] In a hybrid electric vehicle according to the present invention, the period without charge is a period of suspended charging device management charge. In other words, charging is suspended for the entire period without charge. Thus, a separate charge is made separately so that the suspension is included between separate periods before the value of the physical quantity corresponding to the degree of accumulation reaches a second specified value.

The ratio tr/tc between the length tc of each separate charging period and the duration tr of the period of suspended charging immediately after separation the second charging period is not less than 0.14 and not higher than 0.9. Scheme, in which the ratio tr/tc not less 0.14, can eliminate the deposition of metal Li on the surface of the negative electrode. Further, the scheme in which the ratio tr/tc is not higher than 0.9, can quickly and properly return the value of the physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element, to the second set value without unnecessary waste of time for suspension.

[0037] Further, in the above-mentioned hybrid electric vehicle, preferably, the control device exercises are designed in such a way that the period without charge is a discharge period during which Li-ion rechargeable element is discharged.

[0038] during the period without charging the discharge may dissipate Li ions more quickly than in the case of suspension of charging. Thus, in a hybrid electric vehicle according to the present invention, the period without charge is the period of détente in the control device charging. Namely, the discharge is carried out during the whole period without charge. Thus, a separate charge is made separately so that the discharge is switched between charging periods before the value of the physical quantity corresponding to the degree of accumulation reaches a second preset value. In the accordance with this scheme Li-ion rechargeable element with the value of the physical quantity, the appropriate degree of accumulation, descended to the first given value, can be quickly charged before the value of the physical quantity reaches a second specified value.

[0039] Further, in the above hybrid electric vehicle, preferably, the control device exercises are designed in such a way that each of the periods without charging is a period of suspended charging, during which charging lithium ion rechargeable element is suspended, or the discharge period, during which Li-ion rechargeable element is discharged.

[0040] In each period without charge when it comes to the suspension of charging or discharging, Li ions deposited on the surface of the negative electrode can be satisfactorily dispersed. Thus, in a hybrid electric vehicle according to the present invention each period without charge includes the period of suspension of the charge or discharge period in the control device charging. Namely, in each period without charging is suspending charging or discharging. Thus, a separate charge is made separately so that the suspension of charging or discharging is enabled between the periods of charging before the value of the physical quantity, sootvetstvuyuschimi accumulation, reaches the second set value. In accordance with this scheme reduces electrical capacity can be eliminated.

[0041] Further, the above hybrid electric vehicle, preferably, includes: a determination device of the engine, which determines whether the engine mounted on the hybrid electric vehicle; and a device for issuing commands to the engine, which issues a command to the engine to be started, when it is determined that the engine is not running, where the control device performs charging control so that in a state where the generator is installed in a hybrid electric vehicle is driven by operation of the engine, the electric power produced by the generator is supplied by a lithium-ion rechargeable element charging a Li-ion rechargeable element.

[0042] In a hybrid electric vehicle according to the present invention determines whether the engine mounted on the hybrid electric vehicle in the state. When it is determined that the engine is not running, the command to start the engine. In accordance with this scheme, the electrical energy produced by the generator mounted on the hybrid electricscooterexporter tool, can be served on Li-ion rechargeable element in this state, when the generator is driven by the engine. Thus, lithium-ion battery element in which the value of the physical quantity corresponding to the degree of accumulation, lowered to the first predetermined value may be properly charged, until the value reaches the second specified value.

[0043] Further, in the above-mentioned hybrid electric vehicle, preferably, characterized by 1C as the current value of the current, allowing you to charge theoretical intensity for 1 hour, which theoretically may accumulate up to a maximum value in the active material of the positive electrode contained in the lithium-ion battery element, the control device performs charging control so that lithium-ion rechargeable element charging current having a value not less than 2C.

[0044] In a hybrid electric vehicle according to the present invention is a lithium-ion rechargeable element charging current having a value not less than 2C. When lithium-ion rechargeable item is charging such a high current lithium-ion battery element in which the value of a physical quantity, sootvetstvuyuschimi accumulation, reduced to the first predetermined value may be charged for a shorter period of time so that the value of the physical quantity reaches a second preset value. In addition, as described above, if at least one suspending charging or discharging is carried out during charging from the first set value to the second preset value, Li ions contained in the boundary between the electrolyte solution and the negative electrode, can be dispersed, and thus can be eliminated deposition of metal Li on the surface of the negative electrode.

[0045] Preferably, with increasing charging current Li-ion rechargeable element could be charged so that the value of the physical quantity reaches a second preset value in less time. However, when the charge current is too high, deterioration of the element, a charging system and so on also increases. Thus, it is preferable that the magnitude of the charging current was, for example, not less than 2 and no more than 10 seconds.

Brief description of drawings

[0046] Figure 1 - diagram of the hybrid electric vehicle according to the embodiments 1-17;

2 is a diagram of a system element in the embodiments 1-17;

3 is an explanatory diagram showing a charging method in embodiment 1;

4 is a view in R is trese Li-ion battery element;

5 is a view in section of the body electrode;

6 is an enlarged fragment in the context of the body of the electrode, corresponding to the element In figure 5;

7 is a block diagram showing a method for charging a lithium-ion rechargeable element in embodiment 1;

Fig is a graph showing the results of test cycles in accordance with embodiments 1 and 2, and comparative example 1;

Fig.9 is a graph showing the results of test cycles in accordance with embodiments 3 and 5, and comparative example 2;

Figure 10 is a graph showing the results of test cycles in accordance with the embodiments 6 and 8, and comparative example 3;

11 is a graph showing the results of test cycles in accordance with the embodiments 6, 9, and 10, and comparative example 3;

Fig is a graph showing the results of test cycles in accordance with the embodiments 11 and 12, and comparative example 4;

Fig is a graph showing the results of test cycles in accordance with the embodiments 13 and 14, and comparative example 5;

Fig is a block diagram showing a method for charging a lithium-ion rechargeable element in accordance with option 1;

Fig is a block diagram showing a method for charging a lithium-ion rechargeable element in accordance with examples of the implementation 15-17;

Fig - block diagram of the stages of charging in accordance with embodiment 15;

Fig is a graph showing the results of test cycles in accordance with embodiments 15-17 and comparative example 6;

Fig - block diagram of the stages of charging in accordance with embodiment 17 and

Fig is a graph showing the results of test cycles in accordance with the reference examples 1-4.

A list of reference designations

[0047]

1 - Hybrid electric vehicle

3 - Engine

6 - Cell system

9 - Generator (alternator)

10 is Assembled battery

30 - element Controller (device first determining device determining the state of the stop, the control device is charging, the determination device of the engine, a device for issuing commands to the engine)

40 voltage

50 - Galvanometer

100 - Lithium-ion battery

153 - Active material of the positive electrode

KS1 - First split charging period

KS2 - Second split charging period

KR - the Period of suspension of the charging period without charge)

Description of examples of implementation

[0048] (embodiment 1)

Next will be described in exemplary embodiment 1 of the present invention with reference to the drawings.

Hybrid e is extricable vehicle 1 in accordance with embodiment 1, as shown in figure 1, includes a body 2 of a vehicle, the engine 3, the front hydraulic motor 4, the rear hydraulic motor 5, the elemental system 6, the cable 7 and the generator 9 and is driven by the combined use of the engine 3, the front motor 4 and the rear motor 5. In particular, in a hybrid electric vehicle 1 is used elemental system 6 as a power source for actuating the front motor 4 and the rear motor 5, and the hybrid electric vehicle 1 is designed using well-known means so to move, using the engine 3, the front hydraulic motor 4 and the rear hydraulic motor 5.

[0049] Cell system 6 is installed in the body 2 of the vehicle hybrid electric vehicle 1 and connected with the front motor 4 and the rear motor 5 through a cable 7. As shown in figure 2, cell 6 contains the assembled battery 10 that includes many lithium-ion battery 100 (electrical components), electrically connected with each other in the group, led voltage 40, the galvanometer 50 and the element controller 30. The element controller 30 includes a ROM (read only memory device) 31, a CPU (Central processing unit) 32, RAM (RAM remember the e device) 33, and the like.

[0050] the voltage detector 40 detects the voltage between the terminals V of each of the lithium ion battery 100. Meanwhile, the galvanometer 50 determines the amount of current I passing through the lithium-ion battery cells 100 constituting the assembled battery 10.

[0051] the Controller battery 30 calculates the degree of accumulation of lithium-ion battery element 100 on the basis of the voltage V between the terminals defined by the voltage indicator 40 (in particular, the average value of the lithium ion battery 100 constituting the assembled battery 10) to calculate the SOC (state of charge) lithium-ion battery element 100 on the basis of the calculated degree of accumulation.

Further, the element controller 30 determines fell whether the capacity Li-ion battery element 100 to the first predetermined value (the degree of accumulation corresponding to the SOC of 30% according to embodiment 1). In the exemplary embodiment 1 is defined dropped if the calculated SOC to 30%.

[0052] the element Controller 30 determines whether the hybrid electric vehicle 1 is in the stopped state. In particular, the element controller 30 determines whether the hybrid electric vehicle 1 is in a stopped state on the basis of the signal transmitted from the ECU (engine control unit - the unit pack is Alenia engine) 60. In the ECU 60, when cell system 6 is activated, and when the position of the shift lever is in "neutral position" or "position R is determined that the hybrid electric vehicle is in the stopped state, and the ECU 60 transmits a status signal stops, indicating that the hybrid electric vehicle 1 is in the stopped state, the controller element 30. When the position of the shift lever is in "D" and when the accelerator is not squeezed out and, consequently, the speed of the hybrid electric vehicle is equal to "On", it is determined that the hybrid electric vehicle 1 is in the stopped state, and the ECU 60 transmits a status signal stop to the element controller 30. When the element controller 30 receives the signal state of the stop is determined that the hybrid electric vehicle 1 is in the stopped state.

[0053] the element Controller 30 determines whether the engine 3 mounted on the hybrid electric vehicle 1. In particular, the element controller 30 determines whether the engine 3, based on the signal transmitted from the ECU 60. In the ECU 60, when the number of revolutions of the engine 3 is not equal to 0, it is determined that the engine 3 is operated, and the signal is l job status, indicating that the engine 3 is transmitted to a controller element 30. When the element controller 30 receives the signal status is determined that the engine 3 is running.

[0054] When the element controller 30 determines that the engine 3 is not working, issued the command to start the engine 3. This command provides a presence in the state of operation of the engine 3 (in idle mode), and thus, the generator 9 (alternator) is activated.

[0055] When the element controller 30 determines that the degree of accumulation of lithium-ion battery element 100 has decreased to the first predetermined value (the estimated SOC is reduced to 30%), and in addition, when the element controller 30 determines that the hybrid electric vehicle 1 is in the stopped state during the movement, the element controller 30 performs control so that the lithium-ion battery element 100 is charged, while the degree of accumulation of lithium-ion battery element 100 reaches the second set value, while the hybrid electric vehicle 1 is stopped. In particular, in the condition in which the generator 9 is actuated by operation of the engine 3, the electric energy generated by the generator 9 is applied to a Li-IO the main battery cells 100, the components of the assembled battery 10.

[0056] In embodiment 1, the second preset value is the degree of accumulation corresponding to 60% of SOC. Thus, the element controller 30 continues to charge the lithium-ion battery element 100 before the estimated SOC reaches 60%. Because of theoretical electric capacity Li-ion battery element 100 is 5 amp-hours (Ah - Ah), the degree of accumulation corresponding to 100% S is 5-o'clock Next, in embodiment 1, the element controller 30 corresponds to the first determining device, the device determine the status of the stop device determining engine operation control device charging.

[0057] the element Controller 30 divides the charging period before the degree of accumulation of lithium-ion battery element 100 reaches the second preset value, into two or more separate period and periods without charge, provided between separate periods of charging. The charge for split charging period, charging is suspended during the period without charge. In embodiment 1, as shown in figure 3, the charging period To split into two separate charging period (the first split charging period KS1 and the second split charging period KS2) and the period is without charge (the period of suspended charging KR) between separate periods of charging. Figure 3 charging and suspend charging are repeated in the order of charging, suspension and charging", the degree of accumulation is restored to the second specified value.

[00581 the Period of suspended charging KR is provided in the charging period K from the first set value to the second preset value, and, consequently, the deposition of metal Li on the surface of the negative electrode can be eliminated. It is believed that this is because the suspension of charging allows ions Li withheld at the boundary between the electrolyte solution and the negative electrode effect of diffusion control, diffuse into the lithium-ion battery element 100. This scheme can prevent the reduction in electricity consumption caused by the deposition of metal Li.

[0059] Although the duration tc of separate charging period may not be less than 40 seconds, in embodiment 1, the duration tc of the first split charging period KS1 is 67,5 seconds, and the duration tc of the second split charging period KS2 is also 67,5 seconds. Thus, the duration of the split charging period is increased, and can be stabilized idling speed of the hybrid electric vehicle 1. Thus, the comfort of movement in the hybrid electric vehicle is not lost, and, with edutella, the driver and passengers do not feel discomfort.

[0060] Preferably, the duration tr of the period of suspended charging was set so that the ratio tr/tc between the length tc of each separate charging period and the duration tr of the period of suspended charging immediately after the split charging period was not less than 0.14 and not higher than 0.9. In embodiment 1, the duration tr of the period of suspended charging KR is 30 seconds, and thus tr/tc=30/67,5=0,44. The number of separate periods of charging, the duration tc of separate charging period and the duration tr of the period of suspended charging entered in advance in the ROM 31 or the element controller 30.

[0061] the magnitude of the charging current is preferably set with a value of not less than 2 and not more than 10C. In the exemplary embodiment 1 in the split charging period KS1 and the second split charging period KS2 charge current is a constant current value 8S (40A). Charging with a large current can accomplish what lithium ion battery element 100, the degree of accumulation which is reduced to the first predetermined value, can be charged so that the degree of accumulation reaches a second preset value within a short time. In embodiment 1, the degree of accumulation of lithium-ion battery element 100, in which SOC SN is the wife up to 30%, can be restored to the extent of accumulation corresponding to SOC 60%for 165 seconds(=67,5+30+67,5).

[0062] the Lithium-ion battery element 100, as shown in figure 4, is a rectangular sealed lithium ion rechargeable element that contains the body element 110 having a continuous rectangular shape, the positive electrode terminal 120 and the negative electrode terminal 130. The housing element 110 includes a rectangular portion for accommodating 111, which is formed from metal and provides space for hosting, have a continuous rectangular shape and the metal cover 112. The housing element 110 (a rectangular portion for accommodating 111) accommodates the electrode body 150, collecting element of the positive electrode 122, collecting element of the negative electrode 132 and the anhydrous electrolyte solution 140.

[0063] the electrode Body 150, as shown in figure 5, has an oval cross-section, and represents, as shown in Fig.6, flat oped body, including twisted platinum sheet positive electrode 155, and the negative electrode plate 156 and the separator 157. The electrode body 150 includes a twisted portion of the positive electrode 155b, located on one end portion (figure 4 right end part in the axial direction (figure 4 to the left and right), and twisted the negative part is th electrode 156b, located on the other end portion (figure 4 right end part). In the twisted part of the positive electrode 155b only part of the positive electrode plate 155 is wound in a spiral. In the twisted part of the negative electrode 156b only part of the negative electrode plate 156 is wound in a spiral. The composite material of the positive electrode 152 containing the active material of the positive electrode 153, which is the coating of the positive electrode plate 155, except for the twisted part of the positive electrode 155b (see Fig.6). Also the composite material of the negative electrode 159, containing the active material of the negative electrode 154 is coated negative electrode plate 156, except for the twisted part of the negative electrode 156b (see Fig.6). Twisted part of the positive electrode 155b electrically connected to the positive electrode terminal 120 through the collecting element of the positive electrode 122. Twisted part of the negative electrode 156b electrically connected to the negative electrode terminal 130 through the collecting element of the negative electrode 132.

[0064] In the lithium-ion battery element 100 of embodiment 1 lithium Nickel oxide (lithium nickel oxide) is used as the active material of the positive electrode 153. Natural carbon material in the core is ve graphite is used as the active material of the negative electrode 154. Anhydrous electrolyte solution 140 is prepared by dissolving hexaphosphate lithium (LiPF6)in an anhydrous solvent, mixed with EC (ethylene carbonate resulting), DMC (dimethylcarbonate) and EMC (ethyl methyl carbonate is ethyl methyl ester of carbonic acid). In this case, theoretical capacity of lithium-ion battery element 100 is 5 amp-hours (Ah - Ah). Thus, 1C corresponds to a value of a current of 5A.

[0065] Next, a method of charging a lithium-ion battery element 100 in hybrid electric vehicle 1 according to embodiment 1 will be described with reference to Fig.7.

First, at step S1 is decreased if the degree of accumulation of lithium-ion battery element 100 to the first predetermined value (in the embodiment 1, the degree of accumulation corresponds to 30% SOC). In particular, the element controller 30 calculates the degree of accumulation of lithium-ion battery element 100 on the basis of the voltage V between the terminals (more specifically, the average value of the lithium ion battery 100 constituting the assembled battery 10)defined by the voltage indicator 40 for calculating the SOC (SOC) Li-ion battery element 100 on the basis of the calculated degree of accumulation. Then determine reduced if the degree of accumulation of lithium innohosting element 100 to the first preset value based on the calculated SOC. In embodiment 1, when the calculated SOC is reduced to 30%may be determined that the degree of accumulation of lithium-ion battery element 100 is reduced to the first specified value.

[0066] When determined in step S1 that the degree of accumulation of lithium-ion battery element 100 is not reduced to the first predetermined value (in the embodiment 1, the degree of accumulation corresponding to 30% SOC) (No), the process is terminated without start charging.

[0067] At the same time, if in step S1 it is determined that the degree of accumulation of lithium-ion battery element 100 is reduced to the first predetermined value (Yes), the process goes to step S2, and determines whether the hybrid electric vehicle 1 is in the stopped state. In particular, it is determined whether the hybrid electric vehicle 1 is in a stopped state on the basis of the signal transmitted from the ECU 60. In the ECU 60, when cell system 6 is activated, and when the position of the shift lever is in "Neutral position" or "position R is determined that the hybrid electric vehicle is in the stopped state, and the ECU 60 transmits a status signal stops, indicating that the hybrid electric vehicle 1 is in SOS is the right stop, the element controller 30. Also when the position of the shift lever is in "regulation D" and when the accelerator is not squeezed out and, thus, the speed of the hybrid electric vehicle is equal to 0, it is determined that the hybrid electric vehicle 1 is in the stopped state, and the ECU 60 transmits a signal pause on the controller element 30. When the element controller 30 receives the status signal stop, transferred to the ECU 60, it is determined that the hybrid electric vehicle 1 is in the stopped state.

[0068] When it is determined at step S2 that the hybrid electric vehicle 1 is not in the stopped state (No), the process again returns to step S1 and the above process is carried out.

[0069] At the same time, when the step S2 is determined that the hybrid electric vehicle 1 is in the stopped state (Yes), the process goes to step S3 and determines whether the engine 3 mounted on the hybrid electric vehicle 1. In particular, the element controller 30 determines whether the engine 3, based on the signal transmitted from the ECU 60. In the ECU 60, when the number of revolutions of the engine 3 is not equal to 0, it is determined that the engine 3 is operated, and the signal status indicates that the engine rabotaet, is transmitted to the controller element 30. When the element controller 30 receives the signal status transmitted from the ECU 60, it is determined that the engine 3 is running.

[0070] When at step S3 it is determined that the engine 3 is not working (No), the process goes to step S4, and issued the command to start the engine 3. This command allows the engine 3 to be in the state (idle mode), and, thus, is driven by the generator (alternator) 9.

[0071] Next, the process goes to step S5, begins charging the lithium-ion battery 100 constituting the assembled battery 10. In particular, in the condition in which the generator 9 is actuated by operation of the engine 3, the electric power generated by the generator 9 is applied to a lithium-ion battery cells 100 constituting the assembled battery 10. In embodiment 1 constant current having a magnitude in 8C (40 A), served on Li-ion rechargeable element 100.

[0072] subsequently, the process goes to step S6, and determines the results of the first split charging period KS1. In embodiment 1, the duration tc of the first split charging period KS1 is to 67.5 seconds. Thus determined, did 67,5 seconds since the start of charging.

[0073] When the constant current in 8C (40 A) p is given by Li-ion rechargeable element 100 within 67,5 seconds the amount of electricity (0.75 a-h), corresponding to 15% SOC, may be served on each of the lithium ion battery 100. Thus, in embodiment 1, in the first split charging period KS1 (67,5 seconds) Li-ion rechargeable element 100 with SOC, a decrease of up to 30%may be charged so that the SOC is restored to 45%.

[0074] When step S6 is determined that the first split charging period KS1 not ended (No), the process is repeated until the first split charging period KS1.

Then, when step S6 is determined that the first split charging period KS1 ended (Yes), the process goes to step S7, charge the lithium-ion battery element 100 is suspended.

[0075] Next, the process goes to step S8, and determines the results of the period of suspended charging KR. In embodiment 1, the duration tr of the period of suspended charging KR is 30 seconds. Thus determined, did 30 seconds after suspend charging.

When at step S8 it is determined that the period of suspended charging KR has not ended (No), the process is repeated until the end of the period of suspended charging KR. Then, at step S8, when it is determined that the period of suspended charging KR ended (Yes), the process goes to step S9 and charging the lithium-ion rechargea the element 100 begins again.

[0076] Next, the process goes to step SA, and is determined as to whether the degree of accumulation of lithium-ion battery element 100 of the second predetermined value (in the embodiment 1, the degree of accumulation corresponds to 60% SOC).

In particular, the element controller 30 calculates the degree of accumulation of lithium-ion battery element 100 on the basis of the voltage V between the terminals (in particular, the average value of the lithium ion battery 100 constituting the assembled item 10), the measured voltage indicator 40 for calculating the SOC of lithium-ion battery element 100 from the calculated degree of accumulation. Then based on the calculated SOC is determined as to whether the degree of accumulation of lithium-ion battery element 100 of the second specified value. In embodiment 1, when the estimated SOC reaches 60%, it may be determined that the degree of accumulation of lithium-ion battery element 100 has reached the second preset value.

[0077] In embodiment 1, in the first and second split charging periods (KS1 and KS2 Li-ion rechargeable element 100 is charged by a constant current in 8S (40A). Thus, the duration tc of the second split charging period KS2 is 67,5 seconds, as in the case of the first split charging period KS1. View of tog is, that Li-ion rechargeable element 100 with SOC, restored to 45%, the second split charging period KS2 corresponds to the period in which the charging Li-ion battery element 100 begins again at step S9 before the degree of accumulation of lithium-ion battery element 100 reaches the second predetermined value (the degree of accumulation corresponding to 60% SOC).

[0078] At step SA is determined that the degree of accumulation of lithium-ion battery element 100 has not reached the second predetermined value (No), the process is repeated until the degree of accumulation of lithium-ion battery element 100 reaches the second set value. Then, when the SA is determined that the degree of accumulation of lithium-ion battery element 100 has reached the second predetermined value (Yes), charging the lithium-ion battery element 100 is terminated.

[0079] In the charging method according to embodiment 1 performs the processes of steps S7 and S8, and charging may be suspended for the period during which the degree of accumulation of lithium-ion battery element 100 increases from the first predetermined value (SOC 30%) to the second setpoint (SOC 60%). Suspending charging can allow ions Li withheld at the boundary between the electrolyte solution and the denier, the first electrode into force of diffusion control, to scatter in Li-ion battery element 100, and thus, the deposition of metal Li on the surface of the negative electrode can be eliminated. This scheme can prevent the decrease in capacitance caused by the deposition of metal Li.

[0080] Further, in the charging method according to the embodiment 1, the length tc of each separate charge period is not less than 40 seconds (in particular, 67,5 seconds). When the split charging period is long, the idling of the hybrid electric vehicle 1 can be stabilized even during the charging period, and thus the comfort of movement in the hybrid electric vehicle is not lost.

[0081] Further, in the charging method according to the embodiment 1, the length tc of each separate period of charging is to 67.5 seconds, and the duration tr of the suspension period, the charge is 30 seconds. Thus, the tr/tc=30/67,5=0,44. When tr/tc is not less than about 0.14, the deposition of metal Li on the surface of the negative electrode can be eliminated. Further, when tr/tc is not higher than 0.9, the degree of accumulation of lithium-ion battery element 100 can be quickly and properly restored to the second preset value without wasting time to stop charging.

It should be noted that in the example implementation 1 steps S5-SA correspond to the stage of charging.

[0082] (test Cycles)

Li-ion rechargeable element 100 is charged from the first predetermined value (the degree of accumulation corresponding to 30% SOC) to the second predetermined value (the degree of accumulation corresponding to 60% SOC), and then is discharged and reduced to the first predetermined value. This cycle of charging and discharging is defined as 1 cycle, and a cycle test. Hereinafter will be described the cycles of the scan.

[0083] (embodiments 1 and 2 and comparative example 1) will be described First review cycle for the embodiment 1. Prepared lithium-ion battery element 100 with the degree of accumulation corresponding to 30% SOC. Li-ion rechargeable element 100 is charged as described above, when the ambient temperature is 15°C, while the SOC will not recover up to 60%. In particular, lithium-ion battery element 100 is charged by a constant current 40 A (8C) during 67,5 seconds, and then charging is paused for 30 seconds. Next, Li-ion rechargeable element 100 is charged again with a constant current of 40 A (8C) in the course of 67.5 seconds. This scheme can recover the degree of accumulation of lithium-ion battery element 100 to the degree of accumulation corresponding to 60% SOC. Then Li-ion rechargeable element 100 is discharged with a constant current of 20 A (C), the degree of accumulation of lithium-ion battery element 100 is reduced in such a way as to meet the 30% SOC. This cycle of charging and discharging is defined as 1 cycle and is repeated within 128 cycles.

[0084] At this time was measured capacitance discharge in each of the 40 cycles, 68, 89 and 128, and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the 40 cycles, 68, 89 and 128 was 99,67%, 99,49%, 99,31% 98,53%, respectively. This result as the ratio between the number of cycles of charging and discharging and the current ratio of the capacities specified in chain Fig.

In embodiment 1, the number of separate periods of charging is 2, the length tc of separate charging period is 67,5 sec, and the duration tr of the period of suspended charging time is 30 seconds, while the tr/tc=30/67,5=0,44.

[0085] Next will be described the control cycle in accordance with exemplary embodiment 2. The embodiment 2 differs from embodiment 1 in that a lithium-ion battery element 100 is fully charged under these conditions, when the number of separate periods of charging was 3, and the length tc of each separate charging period was 45 seconds. The discharge conditions were the same as in example osushestvleniya. Under such conditions, the cycle of charging and discharging was repeated for 113 cycles. At this time, the discharge capacity in each cycle, 33, 58, 78 and 133 were measured, and the percentage of each of the containers relative to the initial discharge capacity was rasschitanna as the current ratio of capacities (%). The current ratio of containers in each of the loops 33, 58, 78 and 113 was 99,77%, 99,68%, 99,56%, 98,39% respectively. This result is indicated by a continuous line on Fig. In embodiment 2 duration tc split charging period is 45 seconds, and the duration tr of the suspension period, the charge is 30 seconds, while the tr/tc=30/45=0,67.

[0086] For comparison with embodiments 1 and 2 were conducted verification cycle in accordance with comparative example 1. Comparative example 1 was different from embodiments 1 and 2 so that the charging was carried out continuously without separation of the charging period. In particular, lithium-ion battery element 100 is continuously charged by a constant current 40A (8C) within 135 seconds, the degree of accumulation of lithium-ion battery element 100 has been restored to the extent of accumulation corresponding to 60% SOC. Next, Li-ion rechargeable element 100 was discharged with a constant current at 20A (4C), the degree of accumulation of lithium jennyoga the battery element 100 is decreased so that began to meet 30% SOC. This cycle of charging and discharging was defined as 1 cycle and repeated for 117 cycles. At this time, the discharge capacity in each of the loops 16, 45, 81 and 117 was measured, and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the loops 16, 45, 81 and 117 was 99.75%, 99,42%, 98,93% of 97.78%, respectively. This result is indicated by a dotted line on Fig.

[0087] As shown in Fig, in embodiments 1 and 2 decrease hakusho ratio of the capacitances caused by the cycles of the scan (repetition of the charging and discharging)was lower than in comparative example 1. This is because, in the embodiments 1 and 2, the charging period from the first specified value to the second preset value has been divided into two or more separate periods of charging and periods of charging periods without charging)provided between separate periods of charging. It is considered that the charging was stopped in the middle of the charging period, with Li ions, charged at the boundary between the electrolyte solution and the negative electrode effect of diffusion control, were scattered in Li-ion battery element 100. We can say that the decrease in capacitance caused by the deposition of metal Li, was suppressed by such a scheme.

[088] Further, when comparing the results of embodiments 1 and 2 with each other decrease the current ratio of the capacitances in the embodiment 2 was less than in embodiment 1. It is believed that this is because in the embodiment 2, the number of separate periods of charging more than in embodiment 1, and thus, the number of periods of charging secured between separate periods of charging, also more than in embodiment 1 (full charging period is also higher than in embodiment 1). This result shows that, the greater the number of separate periods of charging, the greater the effect of eliminating the reduction in capacitance caused by the deposition of metal Li.

[0089] Examples of the implementation of 3-5 and comparative example 2) examples of the implementation of 3-5 different from embodiment 1 in that a lithium-ion battery element 100 was charged under such conditions that the number of separate periods of charging was 6, the duration tc of separate charging period was 60 seconds and the charge current was a constant current 15A (3C). The discharge conditions were the same as in embodiment 1. Under such conditions was performed verification cycle. However, the embodiments 3-5 differed from each other by the duration tr of the period of suspended charging. Current discharge - DC 7,5A (1,5C).

[0090] In particular, in embodiment 3, the cycle of charging and discharging was repeated for 1613 cycles, provided that the DL is the duration tc of the period of suspended charging is 10 seconds. At the same time, the discharge capacity in each cycle 152, 506, 689, 909, 1161, 1394 and 1613 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 152, 506, 689, 909, 1161, 1394 and 1613 was 99,69%, 99,49%, 99,15%, 99,1%, 99,23%, 98,84% and 98,93%, respectively.

This result is indicated in phantom line in figure 9. In embodiment 3, the duration tc of separate charging period is 60 seconds and the duration tr of the period of suspended charging is 10 seconds, while the tr/tc=10/60=0,17.

[0091] In embodiment 4, the cycle of discharging and charging recurred within 1539 cycles on condition that the duration tr of the suspension period, the charge is 30 seconds. At the same time, the discharge capacity in each cycle 145, 487, 661, 870, 1110, 1332 and 1539 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 145, 487, 661, 870, 1110, 1332 and 1539 was 99,75%, 99,5%, 99,13%, 99,05%, 99,1%, 98,75% and 98,87%, respectively.

This result is indicated by a continuous line in figure 9. In embodiment 4, the duration tc of separate charging period is 60 seconds and the duration tr of the period of suspended charging is 0 seconds, while tr/tc=30/60=0.5 in.

[0092] In embodiment 5 cycles of recharging and discharging was repeated for 1443 cycles on condition that the duration tr of the suspension period the charge is 50 seconds. At the same time, the discharge capacity in each cycle 141, 462, 626, 821, 1043, 1249 and 1443 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 141, 462, 626, 821, 1043, 1249 and 1443 was 99,65%, 99,47%, 99,37%, 99,34%, 99,27%, 99,09% and 98,95%, respectively.

This result indicated by stridvall dashed line on figure 9. In embodiment 5 duration tc split charging period is 60 seconds and the duration tr of the suspension period the charge is 50 seconds, while the tr/tc=50/60=0,83.

[0093] For comparison with the embodiments 3-5 conducted the review cycle in accordance with comparative example 2. Comparative example 2 was different from that of embodiments 3-5 fact that the charging was carried out continuously without separation of the charging period. In particular, lithium-ion battery element 100 is continuously charged by a constant current 15A (3C) within 360 seconds, and the degree of accumulation of lithium-ion battery element 100 has been restored to the extent of accumulation corresponding to 60% SOC. Next, whether the s-ion battery element 100 was discharged with a constant current to 20A (4C), the degree of accumulation of lithium-ion battery element 100 has decreased to match 30% SOC. This cycle of charging and discharging was defined as the first cycle was repeated during 1838 cycles. When this discharge capacity in each cycle 173, 574, 785, 1036, 1321, 1589 and 1838 was measured, and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 173, 574, 785, 1036, 1321, 1589 and 1838 amounted to 99,48%, 99,04%, 98,69%, 98,61%, 98,21%, 97,89% and 97,68%, respectively. This result is indicated by the dashed line in figure 9.

[0094] As shown in Fig.9, in embodiments 3-5, the lower the current ratio of the capacitances caused by the cycles of the scan (repetition of the charging and discharging)was lower than in comparative example 2. This is because in embodiments 3-5 charging period from the first specified value to the second preset value has been divided into two or more separate periods of charging and periods of charging periods without charging)provided between the split charging periods.

[0095] Further, when the results of embodiments 3-5 compared to each other, the current ratio of tanks becomes larger in the order of priority of embodiments 3, 4 and 5. This is because although the number of separate p is Ritov charging and equal (namely the number of periods of charging equals), the duration tr of the period of suspended charging different (duration tr is increasing). This result shows that, even when the number of separate periods of charging is equal to (the number of periods of charging is), the longer the duration tr of the suspension period of the charge, the greater the effect of eliminating the reduction in capacitance caused by the deposition of metal Li.

[0096] Examples of the implementation of 6-8 and comparative example 3) In the embodiments 6-8, unlike embodiment 1, the cycle test was carried out at the temperature of the testing environment at 0°C. However, in the embodiments 6-8 duration tr of the periods of charging was, respectively, 10 seconds, 30 seconds and 60 seconds. The discharge conditions were the same as in embodiment 1.

[0097] In particular, in embodiment 6, the cycle of charging and discharging was repeated for 897 cycles on condition that the duration tr of the period of suspended charging is 10 seconds. At the same time, the discharge capacity in each cycle 15, 55, 200, 403, 461, 603 and 897 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 15, 55, 200, 403, 461, 603 and amounted to 897 99,63%, 99,23%, 98,37%, 97,62%, 97,13%, 95,63% and 89,19% ratio is estwenno.

This result is indicated in phantom line in figure 10. In embodiment 6, the duration tc of separate charging period is 67,5 seconds, and the duration tr of the period of suspended charging is 10 seconds, while the tr/tc=10/67,5=0,148.

[0098] In embodiment 7, the cycle of charging and discharging was repeated for 891 cycles on condition that the duration tr of the suspension period, the charge is 30 seconds. At the same time, the discharge capacity in each cycle 15, 55, 155, 384, 450, 584 and 891 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the loops 15, 55, 155, 384,450, 584 and amounted to 891 99,61%, 99,22%, 98,44%, 98,04%, 97,78%, 96,98% and 90,63%, respectively. This result is indicated by a continuous line in figure 10. In embodiment 7, the duration tc of separate charging period is 67,5 seconds, and the duration tr of the suspension period, the charge is 30 seconds, while the tr/tc=30/67,5=0,44.

[0099] In embodiment 8, the cycle of charging and discharging was repeated for 892 cycle, provided that the duration tr of the period of suspended charging is 60 seconds. At the same time, the discharge capacity in each cycle 15, 54, 211, 388, 455, 588 and 892 were measured and the percentage of each of the tanks discharge relative to the initial replication is th capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 15, 54, 211, 388, 455, 588 and amounted to 892 99,69%, 99,38%, 98,45%, 98,07%, 97,74%, 97,13% and 91,76%, respectively. This result indicated by stridvall dashed line on figure 10. In embodiment 8, the duration tc of separate charging period is 67,5 seconds, and the duration tr of the period of suspended charging is 60 seconds, while the tr/tc=60/67,5=0,89.

[0100] For comparison with examples of the implementation of 6-8 conducted the review cycle in accordance with comparative example 3. Comparative example 3 is different from embodiments 6-8 fact that charging is continuously performed without separation of the charging period. With regard to discharge in comparative example 3, as in the embodiments 6-8, ran a cycle of charging and discharging, repetitive 889 cycles. When this discharge capacity in each cycle 15, 55, 161, 282, 351, 516 and 889 was measured, and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 15, 55, 161, 282, 351, 516 and 889 was 99,62%, 99,29%, 98,49%, 97,8%, 97,12%, 95,64% and 87.8%, respectively. This result is indicated by the dashed line in figure 10.

[0101] As shown in figure 10, in embodiments 6-8 decrease the current ratio of the capacitances caused by the cycles of the test (the repetition of charging and rasra the key), it was smaller than in comparative example 3. This is because in the embodiments 6-8 charging period from the first specified value to the second preset value has been divided into two or more separate periods of charging and periods of charging periods without charging) provided between two separate periods of charging.

[0102] Further, when the results of embodiments 6-8 are compared with each other, the current ratio of tanks becomes larger in the order of priority of embodiments 6, 7 and 8. This is because, although the number of separate periods of charging and equal (namely the number of periods of charging equals), duration tr of the period of suspended charging different (duration tr is increasing). This result shows that, even when the number of separate periods of charging is equal to (the number of periods of charging is), the longer the duration tr of the suspension period of the charge, the greater the effect of eliminating the reduction in electricity consumption caused by the deposition of metal Li.

[0103] When the period of suspended charging too long relative to the split charging period, the degree of accumulation of lithium-ion battery element 100 may not be able to recover until the second predetermined value (the degree of accumulation, sootvetstvuyshee% SOC in embodiments 1-8), when the hybrid electric vehicle 1 stops moving. The period of suspended charging enough to have a duration that allows the diffusion of Li ions retained on the border between the electrolyte solution and the negative electrode effect of diffusion control, no need for the suspension of charge, during such period.

[0104] Thus, when the test results of embodiments 7 and 8 were studied in detail, approximately 600 cycles, the current ratio of tanks in the embodiment, 8 more than in embodiment 7; however, the difference is very small. In embodiment 8, the duration tc of separate charging period is 67,5 seconds, and the duration tr of the period of suspended charging is 60 seconds, while the tr/tc is about 0.9. Thus, even when the period of suspended charging longer than the period of suspended charging in embodiment 8, and thus tr/tc higher than 0.9, only to extend the charging period, during which the degree of accumulation of lithium-ion battery element 100 is restored to the second preset value, the effect of increasing the current ratio of small containers.

[0105] according To the above results, the ratio tr/tc between the length tc of each separate period of the charge and the duration tr of the period of suspended charging immediately after the split charging period is preferably not higher than 0.9. This scheme would allow us to quickly and properly restore the degree of accumulation of lithium-ion battery element 100 to the second preset value without unnecessary waste of time to stop charging.

[0106] embodiments 9 and 10)

In embodiments 9 and 10 were run cycle test at a temperature of the testing environment at 0°C, as in the examples of implementation of 6-8. However, in embodiments 9 and 10, the duration tr of the suspension period the charge was 1 second and 5 seconds, respectively.

[0107] In embodiment 9, the cycle of charging and discharging was repeated for 428 cycles on condition that the duration tr of the period of suspended charging time is 1 second. At the same time, the discharge capacity in each of the loops 16, 59, 212 and 428 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the loops 16, 59, 212 and 428 was 99.75%, 99,05%, 98,12% and 96,54%, respectively. This result is indicated by a continuous line figure 11. In embodiment 9, the duration tc of separate charging period is 67,5 seconds, and the duration tr of the period of suspended charging time is 1 second, while the tr/tc=1/67,5=0,015.

[0108] In embodiment 10, the cycle of charging and discharging p is storalsa for 418 cycles with the condition, the duration tr of the period of suspended charging time is 5 seconds. At the same time, the discharge capacity in each of the loops 16, 56, 206 and 418 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the loops 16, 56, 206 and 418 was 99,55%, 98,99%, 98,05% and 96,31%, respectively. This result indicated by stridvall by dashed line 11.

In the exemplary embodiment 10 duration tc split charging period is 67,5 seconds, and the duration tr of the period of suspended charging time is 5 seconds, while the tr/tc=5/67,5=0,074.

[0109] the test Results in example 6 and comparative example 3, respectively, shown in phantom line and a dashed line figure 11. The ratio tr/tc in each of comparative example 3, the embodiments 9, 10, and 6 is 0, 0.015 g, 0,074 and 0,148 in that order.

[0110] As shown in figure 11, in embodiments 9 and 10 speed capacity decrease in rare cases differs from speed in comparative example 3. This is because, since the duration tr of the suspension period the charge was too short relative to the duration tc of separate charging period (in particular, tr/tc amounted to 0.015 and 0,074), Li ions retained on the border between the electrolyte solution is the negative electrode in the power of diffusion control, could not be satisfactorily dispersed, and the deposition of metal Li on the surface of the negative electrode could not be resolved properly. Meanwhile, in embodiment 6, because the tr/tc not less 0.14, it explains that the current ratio of capacities higher than in comparative example 3.

[0111] according To the above results, the ratio tr/tc between the length tc of each separate charging period and the duration tr of the period of suspended charging immediately after the split charging period is not less than about 0.14. This can satisfactorily resolve the deposition of metal Li on the surface of the negative electrode.

[0112] embodiments 11 and 12 and comparative example 4) In the embodiments 11 and 12, unlike embodiment 1, Li-ion rechargeable element 100 was charged under such changed conditions that the temperature of the test environment was -15°C, the charge current was a constant current 20A (4C), and the duration tc of separate charging period amounted to 136.5 seconds and 91 second. The discharge conditions were the same as in embodiment 1. Under such conditions was performed cycles of the test. However, the embodiments 11 and 12 differed from one another by the number of separate periods of charging. Current discharge changed to postanovochka in 10A (2C).

[0113] In particular, in the embodiment 11, the cycle of charging and discharging was repeated for 506 cycles on condition that the number of separate periods of charging is equal to 2. At the same time, the discharge capacity in each cycle, 27, 103, 278, 447 and 506 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the loops 27, 103, 278, 447 506 was 99,63%, 99,02%, 97,6%, 95,78 and 94,73%, respectively. This result is indicated in phantom line at Fig.

In embodiment 11 duration tc split charging period is 136,5 seconds, and the duration tr of the suspension period, the charge is 30 seconds, while the tr/tc=30/136,5=0,22.

[0114] In embodiment 12, the cycle of charging and discharging was repeated for 447 cycles on condition that the number of separate periods of charging is equal to 3. At the same time, the discharge capacity in each cycle 24, 93, 245, 396 and 447 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the loops 24, 93, 245, 396 and amounted to 447 99,6%, 99,12%, 98,23%, 97,26 and 96,76%, respectively. This result is indicated by a continuous line on Fig.

In the example implementation 12 duration tc section is inogo charge period is 91 second, and the duration tr of the suspension period, the charge is 30 seconds, while the tr/tc=30/91=0,33.

[0115] For comparison with the embodiments 11 and 12 were conducted verification cycle in accordance with comparative example 4. Comparative example 4 differs from the embodiments 11 and 12 so that the charging is continuously performed without separation of the charging period. With regard to discharge in comparative example 4, the cycle of charging and discharging was repeated for 531 cycle, as in the embodiments 11 and 12. When this discharge capacity in each cycle 45, 118, 214, 254, 374 and 531 was measured, and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the loops 45, 118, 214, 254, 374 and amounted to 531 99,34%, 98,95%, 97,89%, 97,17%, 94,9% and 90,49%, respectively. This result is indicated by a dotted line on Fig.

[0116] As shown in Fig, in embodiments 11 and 12 reduce the current ratio of the capacitances caused by the scan cycle (repetition of the charging and discharging)was lower than in comparative example 4. This is because, in the embodiments 11 and 12, the charging period from the first specified value to the second preset value has been divided into two or more separate periods of charging and periods of charging periods without charging), provide canny between separate periods of charging.

[0117] Further, when comparing the results of embodiments 11 and 12 with each other decrease the current ratio of tanks in example 12 was less than in example 11. It is believed that this is because in the embodiment 12, the number of separate periods of charging more than in embodiment 11, and thus, the number of periods of charging secured between separate periods of charging, also more than in example 11 (total charging period is also higher than in example 11). This result shows that, the greater the number of separate periods of charging, the greater the effect of eliminating the reduction in electricity consumption caused by the deposition of metal Li.

[0118] embodiments 13 and 14 and comparative example 5) Further, in contrast to embodiment 1 and other embodiments, the test cycles were conducted in accordance with the embodiments 13 and 14 and comparative example 5 under such changed conditions that the second preset value is the degree of accumulation corresponding to the SOC of 50%. In embodiments 13 and 14, unlike embodiment 1, the cycle test was conducted under such changed conditions that the temperature of the test environment was -15°C, the charge current was constant current 10A (C), the duration tc of separate charging period was 60 seconds and the number of separate periods of charging was 6. However, the embodiments 13 and 14 differed duration tr of the period of suspended charging. The current discharge is changed to DC at 5A (1C).

[0119] In particular, in embodiment 13, the cycle of charging and discharging was repeated for 1346 cycles on condition that the duration of the suspension period the charge is 10 seconds. At the same time, the discharge capacity in each cycle 133, 434, 586, 765, 974, 1166 and 1346 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 133, 434, 586, 765, 974, 1166 and 1346 was 99,61%, 99,45%, 99,25%, 98,89%, 98,83%, 98,71% and 98,52%, respectively. This result is indicated in phantom line at Fig. In embodiment 13, the duration tc of separate charging period is 60 seconds and the duration tr of the period of suspended charging is 10 seconds, while the tr/tc=10/60=0,17.

[0120] In embodiment 14, the cycle of charging and discharging was repeated for 1254 cycles on condition that the duration of the suspension period, the charge is 30 seconds. At the same time, the discharge capacity in each cycle 124, 405, 546, 711, 906, 1086 and 1254 were measured and the percentage of each is C tanks relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 124, 405, 546, 711, 906, 1086 and 1254 was 99,75%, 99,61%, 99,38%, 99,12%, 98,97%, 98,92% and 98,84%, respectively. This result is indicated by a continuous line on Fig. In the embodiment 14 duration tc split charging period is 60 seconds and the duration tr of the suspension period, the charge is 30 seconds, while the tr/tc=30/60=0.5 in.

[0121] For comparison with the embodiments 13 and 14 were carried out verification cycle in accordance with comparative example 5. Comparative example 5 is different from the embodiments 13 and 14 so that the charging is continuously performed without separation of the charging period. With regard to discharge in comparative example 5, as in the embodiments 13 and 14 were repeated cycle of charging and discharging for 1531 cycle. When this discharge capacity in each cycle 150, 496, 666, 872, 1110, 1329 and 1531 was measured, and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 150, 496, 666, 872, 1110, 1329 and 1531 was 99,59%, 99,24%, 98,95%, 98,43%, 97,92%, 97,43% and 96,58%, respectively. This result is indicated by a dotted line on Fig.

[0122] As shown in Fig, in embodiments 13 and 14, the decrease in the current ratio of the capacitances caused by the cycles of the test (the repetition of charge and discharge and), it was smaller than in comparative example 5. This is because, in embodiments 13 and 14, the charging period from the first specified value to the second preset value has been divided into two or more separate periods of charging and periods of charging periods without charging)provided between the split charging periods.

[0123] Further, when the test results of the embodiments 13 and 14 are compared with each other, the current ratio of tanks in the embodiment 14 more than in embodiment 13. This is because, although in the embodiments 13 and 14, the same number of separate periods of charging (i.e. they have the same number of periods of charging), duration tr of the period of suspended charging in example 14 more than in embodiment 13. This result shows that, even when the number of separate periods of charging is equal to (the number of periods of charging is), the longer the duration tr of the suspension period of the charge, the greater the effect of eliminating the reduction in electricity consumption caused by the deposition of metal Li.

[0124] (Example 15)

In embodiment 15, in contrast to embodiment 1, the period without charge is the period of discharge. In other words, the discharge is carried out during the whole period of the ez charge. In particular, the element controller 30 divides the charging period before the degree of accumulation of lithium-ion battery element 100 reaches the second set value, on three separate charging period (the first through third split charging periods) and periods without charge, provided between separate periods of charging. Then, charging is carried out in a separate charging period and the discharging is carried out in the period without charge. In other words, charging and discharging are repeated in the order of charging, discharging, charging, discharging and charging" so that the degree of accumulation is restored to the second specified value.

[0125] Next, a method of charging a lithium-ion battery element 100 for hybrid electric vehicles 1 in embodiment 15 will be described with reference to Fig and 16.

As shown in Fig, the process from step S1 to step S4 is carried out as in example 1. Next, the process goes to charging mode step U5. In particular, as shown in Fig on stage U51 begins charging the lithium-ion battery 100 constituting the assembled battery 10. In particular, in this state, when the generator 9 is actuated by operation of the engine 3, the electric energy generated by the generator 9 is applied to a lithium-ion battery the elements 100, the components of the assembled battery 10. In the example of the 15 DC current having a magnitude 3C (15A), served on Li-ion rechargeable element 100.

[0126] the process Then proceeds to step U52, and is ended if the first split charging period. In embodiment 15, the length of the first split charging period is 120 seconds. Thus determined, did 120 seconds after the start of charging.

[0127] When the lithium-ion battery element 100 is charged for 120 seconds with a constant current 3C (15A), the capacitance (0.5 a-h)corresponding to 10% SOC, can be served on every Li-ion battery element 100. Thus, in the exemplary embodiment 15 in the first split charging period (120 seconds) Li-ion rechargeable element 100 with SOC, a decrease of up to 30%may be charged to SOC recovered to 40%.

[0128] At step U52, when it is determined that the first split charging period has not ended (No), the process is repeated until the end of the first split charging period.

Then, on stage, U52, when it is determined that the first split charging period has ended (Yes), the process goes to step U53 and charging the lithium-ion battery element 100 is suspended for the beginning of the discharge. In embodiment 15, the discharge is carried out with constant the output current of 7.5 A.

[0129] the process Then proceeds to step U54, and is ended if the period of discharge. In embodiment 15, the duration of the discharge period is 0.5 seconds. Thus determined, did 0.5 seconds from the beginning of discharge.

When on stage U54 is determined that the discharge period has not elapsed (No), the process is repeated until the end of the period of discharge. Then, when determined at step U54 that the period of discharge is completed (Yes), the process goes to step U55 and charging the lithium-ion battery element 100 begins again.

[0130] the process Then proceeds to step U56, and is ended if the second split charging period. In embodiment 15, the duration of the second split charging period is 120 seconds. Thus determined, did 120 seconds after the start of charging.

[0131] When the lithium-ion battery element 100 is charged for 120 seconds with a constant current 3C (15A), the capacitance (0.5 a-h)corresponding to 10% SOC, can be served on every Li-ion battery element 100. Thus, in the example of the 15 second split charging period (120 seconds) Li-ion rechargeable element 100 with SOC 40% can be recovered up to 50%.

[0132] At step U56, when it is determined that the second split charging period has not ended (No), the process is repeated n the CA will not end with the second split charging period.

Then, on stage, U56, when it is determined that the second split charging period has passed (Yes), the process goes to step U57 and charging the lithium-ion battery element 100 is suspended for the beginning of the discharge. As in the case described above, the discharge is performed with a constant current of 7.5 A.

[0133] the process Then proceeds to step U58, and is ended if the period of discharge. As in the above case, the duration of the discharge period is 0.5 seconds. Thus determined, did 0.5 seconds from the beginning of discharge.

When on stage U58 is determined that the discharge period has not elapsed (No), the process is repeated until the end of the period of discharge. Then, when determined at step U58 that the period of discharge is completed (Yes), the process goes to step U59 and charging the lithium-ion battery element 100 begins again.

[0134] the process Then proceeds to step U5A, and, as in step SA embodiment 1, is determined as to whether the degree of accumulation of lithium-ion battery element 100 of the second predetermined value (in the embodiment 15, the degree of accumulation corresponds to 60% SOC). Also in the embodiment 15, when the calculated SOC reaches 60%, it may be determined that the degree of accumulation of lithium-ion battery element 100 has reached the second preset value.

[035] In embodiment 15 Li-ion rechargeable element 100 is charged by a constant current 3C (15A) in the first the second and third split charging periods. Thus, the duration of the third split charging period is 120 seconds, and the first split charging period. The third split charging period corresponds to the period from which again starts charging Li-ion battery element 100 with SOC, restored to 50% at stage U59, until the degree of accumulation of lithium-ion battery element 100 reaches the second predetermined value (the degree of accumulation corresponding to 60% SOC).

[0136] When it is determined at step U5A that the degree of accumulation of lithium-ion battery element 100 has not reached the second predetermined value (No), the process is repeated until the degree of accumulation reaches a second preset value. Then, when the U5A is determined that the degree of accumulation of lithium-ion battery element 100 has reached the second predetermined value (Yes), the process returns to the main program by Fig and charging is completed.

It should be noted that in the example of the 15 stages with U51 on U5A correspond to the stage of charging.

[0137] (embodiment 16)

The embodiment 16 is different from embodiment 15 only the duration of discharge, and other conditions are the same as in example 15. In particular, in the example is sushestvennee 16 lithium-ion battery element 100 is charging (steps U51-U5A) under these conditions, the duration of each period of discharge is 1.0 second.

[0138] (Example 17)

An example implementation 17 differs from embodiment 15 the fact that the period without charge includes the period of suspension of the charge or discharge period. Namely, the suspension of charging or discharging is performed in each period without charge.

In particular, the element controller 30 divides the charging period before the degree of accumulation of lithium-ion battery element 100 reaches the second set value, on three separate charging period (from the first to the third split charging periods) and periods without charge, provided between separate periods of charging. Charging is carried out in each separate charging period, and the suspension of charging and discharging are performed in each separate period without charge. In particular, charging, suspension of charging and discharging are repeated in the order of charging, suspension, discharge, charging, suspension, discharge and charge" so that the degree of accumulation is restored to the second specified value.

[0139] Next will be described a method of charging a lithium-ion battery element 100 for hybrid electric vehicles 1 in embodiment 17 with reference to Fig and 18.

As shown in Fig, the process from step S1 to step S4, the OS is done, as in example 15. Next, the process proceeds to the normal charging stage V5. In particular, as shown in Fig on stage V51 begins charging the lithium-ion battery 100 constituting the assembled battery 10. In particular, in this state, when the generator 9 is actuated by operation of the engine 3, the electric energy generated by the generator 9 is applied to a lithium-ion battery cells 100 constituting the assembled battery 10. In the example implementation 17 constant current having a magnitude 3C (15A), served on Li-ion rechargeable element 100.

[0140] the process Then proceeds to step V52, and is ended if the first split charging period. In the example implementation 17 the length of the first split charging period is 120 seconds. Thus determined, did 120 seconds after the start of charging.

[0141] When the lithium-ion battery element 100 is charged for 120 seconds with a constant current 3C (15A), the capacitance (0.5 a-h)corresponding to 10% SOC, can be served on every Li-ion battery element 100. Thus, in the example implementation 17 in the first split charging period (120 seconds) Li-ion rechargeable element 100 with SOC, which dropped to 30%, can be restored to 40%.

[0142] At step V52, when the definition is about, the first split charging period has not ended (No), the process is repeated until the first split charging period.

Then, on stage, V52, when it is determined that the first split charging period has passed (Yes), the process goes to step V53 and charging the lithium-ion battery element 100 is suspended.

[0143] the process Then proceeds to step V54, and is ended if the suspension period is charging. In the example implementation 17 the duration of the suspension period, the charge is 30 seconds. Thus determined, did 30 seconds after the start of the suspend charging.

When on stage, V54 is determined that the period of suspended charging is not ended (No), the process is repeated until the suspension period, the charge will not end. Then, when determined at step V54 that the period of suspended charging is finished (Yes), the process goes to step V55 and discharging lithium-ion battery element 100 starts. Also in the embodiment 17, the discharge is performed with a constant current of 7.5 A.

[0144] the process Then proceeds to step V56, and is ended if the period of discharge. In the example implementation 17 the duration of the discharge is 1.0 second, as in embodiment 16. Thus determined, was 1.0 second after the start of discharge. On stage, V56, when is predelino, what discharge period has not ended (No), the process is repeated until the end of the period of discharge.

Then, in step V56, when it is determined that the discharge period has ended (Yes), the process goes to step V57 and charging the lithium-ion battery element 100 begins again.

[0145] the process Then proceeds to step V58, and is ended if the second split charging period. In the example implementation 17 the duration of the second split charging period is 120 seconds. Thus determined, did 120 seconds from the start of charging.

[0146] When the lithium-ion battery element 100 is charged for 120 seconds with a constant current 3C (15A), the capacitance (0.5 a-h)corresponding to 10% SOC, can be served on every Li-ion battery element 100. Thus, in the example implementation 17 in the second split charging period (120 seconds) Li-ion rechargeable element 100 with SOC 40% can be recovered up to 50%.

[0147] At step V58, when it is determined that the second split charging period has not ended (No), the process is repeated until the end of the second split charging period.

Then, on stage, V58, when it is determined that the second split charging period has ended (Yes), the process goes to step V59 and charging the lithium-ion battery element 100 is suspended.

[0148] ZAT is m the process goes to step V5A, and determined, was over whether the period of suspended charging. Also in this case, the duration of the suspension period, the charge is 30 seconds. Thus determined, did 30 seconds of pause charging.

When in step V5A is determined that the period of suspended charging has not passed (No), the process is repeated until the end of the period of suspended charging. Then, when determined at step V5A that the period of suspended charging is finished (Yes), the process goes to step V5B and discharging lithium-ion battery element 100 starts. Also in this case, the discharge is performed with a constant current of 7.5 A.

[0149] the process Then proceeds to step V5C, and is ended if the period of discharge. As in the above case, the duration of discharge is 1.0 second. Thus determined, was 1.0 second after the start of discharge.

When the V5C is determined that the discharge period has not elapsed (No), the process is repeated until the end of the period of discharge. Then, when determined at step V5C that the period of discharge is completed (Yes), the process goes to step V5D and charging the lithium-ion battery element 100 begins again.

[0150] the process Then proceeds to step V5E; and, as in step SA embodiment 1, is determined as to whether the degree of accumulation of lithium-ion rechargeable ele is enta 100 second predetermined value (in the example implementation 17 the degree of accumulation corresponds to 60% SOC). Also in the embodiment 17, when the estimated SOC reaches 60%, it may be determined that the degree of accumulation of lithium-ion battery element 100 has reached the second preset value.

[0151] In the example implementation 17 Li-ion rechargeable element 100 is charged by a constant current 3C (15A) in the first, second and third separate periods of charging. Thus, the duration of the third split charging period is 120 seconds, and the length of the first split charging period. The third split charging period corresponds to the period from which again starts charging Li-ion battery element 100 with SOC, restored to 50% at stage V5D before the degree of accumulation of lithium-ion battery element 100 reaches the second predetermined value (the degree of accumulation corresponding to 60% SOC).

[0152] When it is determined at step V5E that the degree of accumulation of lithium-ion battery element 100 has not reached the second predetermined value (No), the process is repeated until the degree of accumulation reaches a second preset value. Then, when the V5E determined that the degree of accumulation of lithium-ion battery element 100 has reached the second predetermined value (Yes), the process returns to the main program Fig and charging prio is established.

It should be noted that in the example implementation 17 stages with V51 on V5E correspond to the stage of charging.

[0153] (Cycle test)

Li-ion rechargeable element 100 is charged from the first predetermined value (the degree of accumulation corresponding to 30% SOC) to the second predetermined value (the degree of accumulation corresponding to 60% SOC), and then discharged down to the first set value. This cycle of charging and discharging is defined as 1 cycle, and a cycle test. In the future, the review cycle will be described in detail.

[0154] First will be described the control cycle according to the embodiment 15. Prepared lithium-ion battery element 100 with the degree of accumulation corresponding to 30% SOC. Li-ion rechargeable element 100 is charged at an ambient temperature of -15°C, while SOC recovers up to 60% (steps U51 on U5A), as described above. Then Li-ion rechargeable element 100 is discharged by a constant current of 20 A (4C), the degree of accumulation of lithium-ion battery element 100 is reduced in such a way as to meet the 30% SOC. This cycle of charging and discharging is defined as 1 cycle and repeated for 1124 cycles.

[0155] At the same time, the discharge capacity in each cycle 101, 295, 496, 708, 915 and 1124 have been measured and the percentage of each of the tanks discharge relation is entrusted to the initial capacity was calculated as the current ratio of capacities (%)Timesee the ratio of the capacitances in each of the cycles 101, 295, 496, 708, 915 and 1124 was 99,54%, 99,01%, 99,61%, 98,14%, 97,23% and 96,04%, respectively. This result as the ratio between the cycles of charging and discharging and the current value of the containers shown in phantom line and black triangles on Fig.

[0156] Next will be described the control cycle according to the embodiment 16. The embodiment 16 is different from embodiment 15 the fact that Li-ion rechargeable element 100 was charged with such a changed condition that the duration of the discharge was 0.1 seconds (steps U51 on U5A). Other conditions were the same as in the embodiment 15, and the cycle of charging and discharging was repeated 1097 cycles. At the same time, the discharge capacity in each cycle 101, 294, 496, 704, 913 and 1097 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 101, 294, 496, 704, 913 and 1097 was 99,34%, 99,03%, 98,83%, 98,41%, 97,78% and 97,13%, respectively.

This result is shown by stridvall dashed line and black squares on Fig.

[0157] Next will be described the control cycle according to the embodiment 17. An example implementation 17 differs from embodiment 15 that ran the process with V51 on V5E and Li-ion rechargeable element 100 is fully charged. Other conditions which I have been the same, in the embodiment 15, and the cycle of charging and discharging was repeated 1068 cycles.

[0158] At the same time, the discharge capacity in each cycle 80, 238, 401, 568, 733, 903 and 1068 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 80, 238, 401, 568, 733, 903 and 1068 was 99,86%, 99,83%, 99,52%, 99,35%, 98,98%, 98,76% and 98,28%, respectively. This result is shown by a continuous line and white squares on Fig.

[0159] For comparison with the embodiments 15 to 17 were performed verification cycle in accordance with comparative example 6. Comparative example 6 was different from the embodiments 15 to 17 so that the charging was carried out continuously without separation of the charging period. In particular, lithium-ion battery element 100 is continuously charged by a constant current 15A (3C) within 360 seconds, and the degree of accumulation of lithium-ion battery element 100 has been restored to the extent of accumulation corresponding to 60% SOC. Then Li-ion rechargeable element 100 was discharged with a constant current at 20A (4), the degree of accumulation of lithium-ion battery element 100 was decreased so that corresponded to 30% SOC. This cycle of charging and discharging is defined as 1 cycle and repeated 1134 cycle. At the same time, the discharge capacity in each cycle 103, 298, 500, 713, 921 and 1134 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of cycles 103, 298, 500, 713, 921 and was 1134 99,44%, 98,88%, 98,42%, 97,58%, 96,43% and 95,27%, respectively. This result is shown by a dotted line and black circles on Fig.

[0160] As shown in Fig, in embodiments 15 and 16 reduce the current ratio of the capacitances caused by the scan cycle (repetition of the charging and discharging)was lower than in comparative example 6. This is so because in the embodiments 15 and 16, the charging period from the first specified value to the second preset value has been divided into three separate charging period and the periods of charging periods without charging)provided between separate periods of charging. We can assume that the charging was stopped in the middle of the charging period, with Li ions, charged at the boundary between the electrolyte solution and the negative electrode effect of diffusion control, were scattered in Li-ion battery element 100. We can say that the decrease in capacitance caused by the deposition of metal Li, was eliminated this scheme.

[0161] Further, also in embodiment 17, the lower the current ratio of the capacitances caused by qi the scrap test (repetition of the charging and discharging) less than in comparative example 6. This is because in the embodiment 17, the charging period from the first specified value to the second preset value is divided into. three separate charging period and the periods without charging (periods of charge and discharge periods)provided between separate periods of charging. We can assume that the suspension and discharge was carried out during the period of charging ions Li withheld at the boundary between the electrolyte solution and the negative electrode effect of diffusion control, were scattered in Li-ion battery element 100. We can say that the decrease in capacitance caused by the deposition of metal Li, was eliminated this scheme.

[0162] Further, when the results of embodiments 15 and 16 are compared with each other, reducing the current ratio of the capacitances in the embodiment 16 is smaller than in embodiment 15. It is believed that this is because the period of détente in the embodiment 16 is longer than in the embodiment 15. This result shows that, the longer the period of discharge, the greater the effect of suppressing the decrease in capacitance caused by the deposition of metal Li.

[0163] When compared with each other results in embodiments 16 and 17, the lower the current ratio of the capacitances in the example assests is of 17 more less than in example 16. It is believed that this is because in the example implementation 17 discharge, similarly to embodiment 16, is carried out in the period without charge and in the same time period without charge provided the period of suspended charging. This result shows that the suspension of charging or discharging is performed in each period without charge, and the effect of suppressing the decrease in capacitance caused by the deposition of metal Li, can be further enhanced in comparison with cases where only the discharge.

[0164] (Option 1)

Next will be described a method of charging a lithium-ion rechargeable element in accordance with option 1.

In embodiment 1, the PA stage S6 is ended if the first split charging period (see Fig.7). In particular, the duration tc of the first split charging period KS1 is installed as 67,5 seconds, and is, did 67,5 seconds after the start of charging in step S5.

[0165] Meanwhile, in embodiment 1, as shown in Fig, instead of step S6 is a step T6, and is determined as to whether the degree of accumulation of lithium-ion battery element 100 of a given separation values. In particular, given the separation value is set for the degree of accumulation corresponding to 45% SOC, which is the intermediate value between the first predetermined value (the degree of accumulation, corresponding to 30% SOC) and the second specified value (the degree of accumulation corresponding to 60% SOC). When the calculated SOC calculated by the controller element 30 reaches 45%, it may be determined that the degree of accumulation of lithium-ion battery element 100 has reached a predetermined separation value. When at step T6 is determined that the degree of accumulation of lithium-ion battery element 100 has reached a predetermined separation value, charging is suspended at step S7. Then, as in embodiment 1, is in the process of steps S8 in SA so that the degree of accumulation of lithium-ion battery element 100 is restored to the second specified value.

[0166] Also in the above charging method charging period during which charging until the degree of accumulation, reduced to the first predetermined value reaches a second preset value, is divided into two separate charging period and the period without charging suspension period charge)provided between separate periods of charging, and the charging can be performed in a separate charging period, and the period without charging, charging may be suspended. Thus, charging is suspended during the period of charging Li ions retained on the border between Rast is the PR of the electrolyte and the negative electrode effect of diffusion control, can be dispersed in the lithium-ion battery element 100, and thus, the deposition of metal Li on the surface of the negative electrode can be prevented. This scheme can eliminate the reduction in capacitance caused by the deposition of metal Li.

[0167] Further, in the charging method in embodiment 1, as in embodiment 1, the length tc of each separate charging period may be increased to not less than 40 seconds. In particular, in each separate charging period (the first split charging period KS1 and the second split charging period KS2) electric capacity (0.75 a-h), corresponding to 15% SOC, served on Li-ion rechargeable element 100 with a constant current in 8S (40A). Thus, the length tc of each separate period of charging is to 67.5 seconds. When a single split charging period is long, idle work-in electric hybrid vehicle 1 can be stabilized even during the charging period, and thus the comfort of motion in hybrid electric vehicle is not lost.

[0168] Although the present invention is described on the basis of embodiments 1-17 and option 1, it is not limited to the above embodiments and variant. Needless to say, it can be properly modified and when enano without departing from the scope of the present invention.

[0169] for Example, in the above embodiments, the degree of accumulation of lithium-ion battery element 100 is used as the first and second set values, and set the dividing value; however, the voltage V between the terminals of the lithium-ion battery element 100 can be used.

In particular, at step S1, 7, 14, and 15 can be determined, decreased if the voltage V between the terminals of the lithium-ion battery element 100 to the first predetermined value (a voltage value VI between terminals corresponding to the degree of accumulation corresponding to 30% SOC). In particular, as a first setpoint value of the voltage VI between the terminals when the degree of accumulation of lithium-ion battery element 100 corresponds to 30% SOC is stored in the ROM 31 of the element controller 30 on the basis of previously obtained maps the degree of accumulation of the correlation voltage, showing the corresponding relationship between the degree of accumulation of lithium-ion battery element 100 and the value of the voltage V between the terminals. In accordance with this scheme, when a voltage indicator 40 determines the value of the voltage VI between the terminals, the element controller 30 may determine that the voltage V between the terminals of the lithium-ion battery element 100 is reduced to the first problem is its value.

In the same way on stage SA 7 and 14 and stages U5A and V5E Fig and 18 can be determined as to whether the voltage V between the terminals of the lithium-ion battery element 100 of the second specified value (voltage value V2 between the terminals when the degree of accumulation of lithium-ion battery element 100 corresponds to 60% SOC). Also on stage T6 Fig can be determined as to whether the voltage V between the terminals of the lithium-ion battery element 100 of a given separation value (voltage value V3 between the terminals when the degree of accumulation of lithium-ion battery element 100 corresponds to 45% SOC).

[0170] In the charging method according to the embodiment 1 is determined as to whether the degree of accumulation of lithium-ion battery element 100 of the second preset value at step SA (see Fig.7). On the other hand, may be determined to have ended if the second split charging period KS2. Namely, the duration tc of the second split charging period is set as 67,5 seconds, when this can be determined, did 67,5 seconds after the restart charging at step S9.

[0171] Further, in the charging method according to the embodiment 1, in the first and second split charging periods (KS1 and KS2 on Li-ion rechargeable element 100 is served is equivalent to DC (in particular, 40). However, iti-ion battery element 100 can be charged with a constant current so what current values are different between the first and second split charging periods (KS1 and KS2. On the other hand, is determined by the temperature of the element lithium ion battery element 100, with Li-ion rechargeable element 100 can be charged so that the value of the current varies in accordance with temperature variation of the element.

[0172] In the embodiments 15 and 17, on the stages U52 and V52 is determined to have expired if the first split charging period (see Fig and 18). In particular, the length of the first split charging period is set as 120 seconds, and on stages U52 and V52 is determined, did 120 seconds after the start of charging.

[0173] However, at stages U52 and V52 can be determined as to whether the degree of accumulation of lithium-ion battery element 100 of the first predetermined separation value. In particular, the first set of dividing the value for the degree of accumulation corresponding to 40% SOC. When the estimated SOC calculated by the controller element 30 reaches 40%, it may be determined that the degree of accumulation of lithium-ion battery element 100 has reached a predetermined separation value. Thus, when it is determined that the degree of accumulation of lithium-ion battery element 100 has reached the first predetermined separation value, %the SS can move on to the stages U53 and V53, respectively.

[0174] Next, can be determined as to whether the degree of accumulation of lithium-ion battery element 100 of the second predetermined dividing the values on the stages U56 and V58. In particular, the second set of dividing the value for the degree of accumulation corresponding to 50% SOC. When the estimated SOC calculated by the controller element 30 reaches 50%, it may be determined that the degree of accumulation of lithium-ion battery element 100 has reached a predetermined separation value. Thus, when it is determined that the degree of accumulation of lithium-ion battery element 100 has reached the second predetermined separation value, the process may proceed to steps U57 and V59, respectively.

[0175] In embodiment 1 and other embodiments, the charging Li-ion battery element 100 is temporarily suspended during the period without charge as the period of suspended charging. On the other hand, lithium-ion battery element 100 may be temporarily discharged in the period without charge as the period of discharge.

[0176] will Be described cycles test in accordance with reference examples 1-4.

First will be described the review cycle in reference example 1. Li-ion rechargeable element 100 is charged by a constant current 80 A (16C) at an ambient temperature of 0°C is about, as the voltage reaches a 4.3 B as the target voltage, and then charged at a constant voltage of 4.3 V, with this lithium-ion battery element 100 is charged until the SOC reaches about 100%. Then the process is suspended for 180 seconds. Then Li-ion rechargeable element 100 is discharged by a constant current in 1A before the voltage reaches 3,726 B as the target voltage, and then discharged at a constant voltage 3,726 In, with Li-ion rechargeable element 100 is adjusted so that the SOC reaches about 60%. Then the process stops at 420 seconds. This cycle of charging and discharging is defined as 1 cycle and repeated 3092 cycle.

[0177] At the same time, the discharge capacity in each cycle 200, 482, 861, 1389, 2049, 2702 and 3092 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 200, 482, 861, 1389, 2049, 2702 and 3092 amounted to 99,69%, 99,08%, 98,26%, 97,15%, 95,07%, 92,52% and 91,63%, respectively. This result is shown by a dotted line and black circles on Fig.

[0178] Next will be described a cycle test in accordance with reference example 2.

Reference example 2 is different from the reference example 1 only in that the discharge was performed with a constant Toko is in 5A for one second before each cycle of charging and discharging, all other conditions in the reference example 2 were the same as in the reference example 1. At the same time, the discharge capacity in each of the cycles of 650, 1412, 2166, 2528 and 2944 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles of 650, 1412, 2166, 2528 and was 2944 99,4%, 99,9%, 97,7%, 96,6% and 94.8%, respectively.

This result is shown in phantom line and black triangles on Fig.

[0179] Next will be described a cycle test in accordance with reference example 3.

Reference example 3 is different from the reference example 1 only in that the discharge was performed with a constant current 40A for one second before each cycle of charging and discharging, all other terms in reference example 3 were the same as in the reference example 1. At the same time, the discharge capacity in each cycle 651, 1416, 2172, 2535 and 2951 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 651, 1416, 2172, 2535 and amounted to 2951 99,4%, 98,8%, 98,1%, 97,4% and 96.7%, respectively. This result is shown by a continuous line and white squares on Fig.

[0180] Next will be described the control cycle in accordance with the reference example 4.

Reference example 4 is different from the reference example 1 only in that the discharge was performed with a constant current of 40 a for 5 seconds before each cycle of charging and discharging, all other terms in reference example 4 were the same as in the reference example 1. At the same time, the discharge capacity in each cycle 641, 1395, 2140, 2497 and 2905 were measured and the percentage of each of the containers relative to the initial discharge capacity was calculated as the current ratio of capacities (%). The current ratio of containers in each of the cycles 641, 1395, 2140, 2497 and was 2905 99,7%, 99,3%, 98,6%, 98,5% and 98.4%, respectively. This result is shown by stridvall dashed line and black squares on Fig.

[0181] As shown in Fig, in reference examples 2-4, the lower the current ratio of the capacitances caused by the scan cycle (repetition of the charging and discharging)was lower than in the reference example 1. The reason is that, in the reference examples 2-4, the discharge is performed before each cycle of charging and discharging, with Li ions, charged at the boundary between the electrolyte solution and the negative electrode effect of diffusion control, can be dispelled.

This result shows that in the charging method of the present invention rechargeable Li-ion battery element 100 is discharged during the period without charging wasp is Denia metal Li on the surface of the negative electrode is eliminated, so the reduction in electricity consumption can be eliminated.

[0182] In embodiment 1, the duration tr of the suspension period, the charge is 30 seconds. At the same time in reference examples 2 and 3, even if the period of discharge was only 1 second, it was possible to significantly increase the current ratio of the containers relative to the reference example 1. Based on this fact, it is considered that the charging method of the present invention, when the period without charge is the period of discharge, compared with the case where the period without charge is a period of suspended charging period without charge can be significantly reduced and further reduction of the electrical capacity can be further eliminated. Thus, it is believed that by performing discharge in the period without charge, when the decrease in capacitance can be eliminated, Li-ion rechargeable element 100 with a degree of accumulation, reduced to the first predetermined value, can be rapidly charged so that the degree of accumulation will be restored before the second specified value.

1. The method of charging a lithium-ion battery element is used as a power source for movement and is installed in a hybrid electric vehicle, comprising stages, which are: define, fell whether the value of the physical led the ranks, the appropriate degree of accumulation of lithium-ion rechargeable element, to the first preset value, determine whether the hybrid electric vehicle in the stopped state when driving, and when determining that the value of the physical quantity corresponding to the degree of accumulation of lithium-ion battery element is decreased to the first predetermined value and in addition, when determining that the hybrid electric vehicle is in the stopped state when the movement are charging lithium ion rechargeable element as long as the value of a physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element reaches the second set value when you stop the movement of the hybrid electric vehicle, at this stage of the charging period, during which Li-ion rechargeable charging element, is divided into two or more separate periods of charging and periods without charge, provided between separate periods of charging, and charging is carried out in a separate charging period, and, at least, suspend charging or discharging is carried out in the period without charge, and the duration of each of the split charging periods is not less than 40 C.

2. Pic is b charging lithium ion rechargeable element according to claim 1, in which period without charge is a period of suspended charging, during which charging lithium ion rechargeable element is suspended, and the ratio tr/tc between the length tc of each of the split charging periods and the duration tr of the period of suspended charging immediately after the split charging period is not less than 0.14 and not more than 0,9.

3. The method of charging a lithium-ion battery element according to claim 1, in which the period without charge is a discharge period during which Li-ion rechargeable element is discharged.

4. The method of charging a lithium-ion battery element according to claim 1, in which each of the periods without charging is a period of suspended charging, during which charging lithium ion rechargeable element is suspended and the period of discharge, during which Li-ion rechargeable element is discharged.

5. The method of charging a lithium-ion battery element according to claim 1, additionally containing phases in which: determines whether the engine is installed in a hybrid electric vehicle in a running state, and issue the command to start the engine, when determining that the engine is not running, while at the stage of charging, in a state where the generator is installed in a hybrid electric transport is coherent means, is driven by the engine, the electrical energy produced by the generator, served on Li-ion rechargeable element for charging Li-ion rechargeable element.

6. The method of charging a lithium-ion battery element of claim 1, wherein characterizing 1C as the amount of current that allows you to charge theoretical electric capacity for 1 h, which theoretically can be kept at the maximum value of the active material of the positive electrode contained in the lithium-ion rechargeable element, are charging a Li-ion battery element by a current having a value not less than 2C at the stage of charging.

7. A hybrid electric vehicle, comprising: a lithium-ion rechargeable element, which is used as an energy source for movement and is installed in a hybrid electric vehicle, the device of the first definition that defines decreased if the value of the physical quantity corresponding to the degree of accumulation of lithium-ion battery element to the first preset value, the device determine the status of the stop, which determines whether the hybrid electric vehicle in the stopped state during the movement, the control device is charging, which is always defined, what is the physical value corresponding to the degree of accumulation of lithium-ion battery element is decreased to the first predetermined value and, in addition, when it is determined that the hybrid electric vehicle is in the stopped state when the movement controls the charging lithium ion rechargeable element as long as the value of a physical quantity corresponding to the degree of accumulation of lithium-ion rechargeable element reaches a second preset value when the stop-motion hybrid electric vehicle, the device control charge share period during which the lithium-ion battery charging element, into two or more separate periods the charging periods without charge, provided between the split charging periods, and performs charging in separate charging period and shall, at least, suspend charging or discharging in the period without charge, and the duration of each separate charge period is not less than 40 C.

8. Hybrid electric vehicle according to claim 7, in which the control device is charging is performed so that the period without charge is a period of suspended charging, during which charging lithium ion rechargeable element of the cooperation is essential is yavlyaetsya, and the ratio tr/tc between the length tc of each of the split charging periods and the duration tr of the period of suspended charging immediately after the split charging period is not less than 0.14 and not more than 0.9, the control device controls the charging charging lithium ion rechargeable element.

9. Hybrid electric vehicle according to claim 7, in which the control device is charging is performed so that the period without charge is a discharge period during which Li-ion rechargeable element is discharged.

10. Hybrid electric vehicle according to claim 7, in which the control device is charging is performed so that each of the periods without charging is a period of suspended charging, during which charging lithium ion rechargeable element is suspended and the period of discharge, during which Li-ion rechargeable element is discharged.

11. Hybrid electric vehicle according to claim 7, further comprising: a determination device of the engine, which determines whether the engine is installed in a hybrid electric vehicle, and a device for issuing commands to the engine, which issues a command to the engine to be started, when it is determined that the engine is not running, the device control is the exercise by the charging manages so, in the state where the generator is installed in a hybrid electric vehicle is driven by operation of the engine, the electric energy produced by the generator is supplied by a lithium-ion rechargeable element for charging Li-ion rechargeable element.

12. Hybrid electric vehicle according to claim 7, in which, describing 1C as the amount of current that allows you to charge theoretical electric capacity for 1 h, which theoretically can be kept at the maximum value of the active material of the positive electrode contained in the lithium-ion battery element, the control device performs charging control so that lithium-ion rechargeable element charging current having a value not less than 2C.



 

Same patents:

FIELD: transport.

SUBSTANCE: set of inventions relates to power supply system for electric vehicle and to vehicle. Proposed system first means of reading out relative arrangement of power transmitter and power receiver, first vehicle guidance control means, second means of reading out the distance between power transmitter and power receiver, and second vehicle guidance control means. Power transmitter is located on ground. Power receiver is mounted on vehicle body bottom. Proposed vehicle comprises power receiver, first power transmitter position readout unit, first vehicle guidance control unit, second unit to read out the distance between power transmitter and power receiver, and second vehicle guidance control unit. First readout unit comprises frame grabber to fix images outside the vehicle. Frame grabber to identify position of power transmitter.

EFFECT: higher accuracy of parking.

15 cl, 11 dwg

FIELD: electricity.

SUBSTANCE: system comprises a bidirectional interface for connection of a network to a power-accumulating environment in a vehicle; and a control logic device that reacts at a status of power accumulation environment charging and at power, to control a bidirectional interface for selected operation under the following modes: (a) power transmission from the network into the power accumulation environment, (b) power transmission from the power accumulation environment into the network, (c) power control in the network, (d) after disconnection of local consumers from the network in case emergency supply is detected, and before the network recovers the normal mode of operation: reconnection of local consumers to the network, obtaining instructions from a municipal company, supplying power to the network from the power accumulation environment via the bidirectional interface, and receiving a notice about the fact that the network has been recovered to the normal mode of operation. The transmission system comprises a switch connected to the specified bidirectional interface.

EFFECT: prevention of network power sags.

13 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: circuit (120) for specified current switching is described, comprising a comparator (127). A signal of battery temperature is sent to one input (-) of the comparator, which corresponds to the battery temperature detected by a unit of battery temperature detection (8), and a reference signal corresponding to the temperature of discharge start is sent to the other input (+) of the comparator.

EFFECT: variation of value of the specified charging current of the charging current setting unit and value of the specified current of full charge of the full charge current setting unit in accordance with the output signal of the comparator.

7 cl, 4 dwg

FIELD: electricity.

SUBSTANCE: when the ignition off command (IGOFF(1)) is determined at the moment t1, a CCU addresses to a predicted battery temperature pattern and receives the predicted battery temperature (#Tb(1)) corresponding to an ambient temperature (Tout) at the moment t1. When the ignition on command (IGON(1)) is determined at the moment t2, the CCU receives an actual battery temperature (Tb(1)) at the moment t2 and calculates the predicted temperature (#Tb-NEW(1)) after the first ignition on command (IGON(1)) is corrected according to the predicted battery temperature (#Tb(1)) and the actual temperature (Tb(1)). Besides the CCU updates the values corresponding to the ambient temperature (Tout) at the moment t1 by the predicted temperature (#Tb-NEW(1)) being corrected in the predicted battery temperature pattern.

EFFECT: higher reliability of vehicle ignition.

9 cl, 17 dwg

Power supply // 2403657

FIELD: electricity.

SUBSTANCE: power supply comprises an electrochemical current source (ECCS) with at least one element with electrolyte separated anode and cathode, a shunt capacitance connected to an electric output of the ECCS, a DC-DC converter with a key element, a control unit and an inductive energy storage connected to the shunt capacitance. The control unit supports the key element switch frequency regulation in the range 5 kHz÷1 MHz. Specific anode impedance is 0.016÷1.6 Ohm·cm2. The shunt capacitance Csh relates to the differential anode capacitance Ca as defined by the expression Csh/Ca=0.5÷5. The input resistance of the DC-DC converter is 0.5÷5.0 mOhm. The DC-DC converter integrates a planar transformer, and the inductive energy storage is connected to an output winding of the planar transformer.

EFFECT: improved electric characteristics.

4 cl, 4 dwg

FIELD: electrical engineering; charge-discharge rectifier-inverter converters for storage batteries.

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EFFECT: ability of controlling amplitude ratio of charge and discharge pulses.

1 cl, 1 dwg

FIELD: electrical engineering; storage batteries for space vehicles.

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EFFECT: enhanced precision of equalizing capacity of battery cells at minimal power requirement.

2 cl, 2 dwg

The invention relates to systems for automatic charge control capacitor Bank and is intended to regulate the charging capacitor Bank to the set voltage and the formation of the rectangular shape of the charging current and linearly-growing form of charging voltage

Generator set // 2113049
The invention relates to the field of electrical engineering, and for the design of electrical equipment, namely generator sets for internal combustion engines with excitation by permanent magnets and voltage regulator

FIELD: electricity.

SUBSTANCE: method to operate nickel-hydrogen accumulator batteries from n serially connected accumulators within an artificial Earth satellite consists in charging and discharging, bypassing accumulators having lower capacitance, with discharge bypass diodes, storage in discharged condition, monitoring of accumulator battery voltage and performance of recharging, if required, with low current, prior to charging, eliminating formation of explosive concentration of an oxygen-hydrogen mixture, at the same time at the stage of accumulator battery manufacturing the minimum Emin, V and maximum Emax, V value of voltage in an open circuit of discharged accumulators, and recharging with low current is carried out prior charging of the accumulator battery. Mathematical expressions are given, which determine conditions of recharging with low current.

EFFECT: higher functional capabilities and reliability of the method for operation of nickel-hydrogen accumulator batteries.

4 cl, 1 dwg

FIELD: electricity.

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EFFECT: higher efficiency of using a set of n lithium-ion accumulator batteries within a geostationary man-made earth satellite.

1 dwg

FIELD: electricity.

SUBSTANCE: method to recover sulphated lead accumulators consists in performance of regular charging by initial current and subsequent alternation of high and low currents, at the same time charging with high current equal to initial current of charging is carried out for 5-10 minutes, and with low current equal to 0.05-0.1 C10 to achieve permanent density of electrolyte for 1 hour. Amount of alternations of high and low currents depending on extent of accumulators sulphatation is selected as equal to 5-10.

EFFECT: development of a method for efficient recovery of sulphated lead accumulators.

2 cl

FIELD: electricity.

SUBSTANCE: invention may be used to develop and operate lithium-ion accumulator batteries in autonomous power supply systems, mainly - those of artificial Earth satellites (AES). The method for operation of a lithium-ion accumulator battery in an autonomous power supply system consists in conductance of charges, storage in charged condition, recharges, discharges, accumulators voltage control and accumulators periodical voltage balancing by way of selecting the accumulators with the lowest voltage and discharge of the other accumulators to individual balancing resistors depending on their voltage initial magnitude until the preset end level. According to the invention, the other accumulators discharge to balancing resistors is performed successively, one by one; each time it is the accumulator with the lowest current voltage that is subjected to discharge to a balancing resistor.

EFFECT: increased efficiency of usage and simplification of operation of a lithium-ion accumulator battery in an autonomous power supply system.

4 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: method for operation of a lithium-ion accumulator battery in an autonomous power supply system consists in conductance of charges, storage in charged condition, recharges, whenever required, discharges, accumulators voltage control and accumulators periodical voltage balancing by way of selecting the accumulators with the lowest voltage, connection of the other accumulators to individual balancing resistors with subsequent disconnection of the corresponding resistors when voltage on the corresponding accumulators reaches the initially selected accumulator voltage level. According to the invention, upon completion or in the course of balancing one additionally performs the accumulators anticipatory voltage disbalancing relative to the initially selected accumulator voltage level.

EFFECT: simplification of operation and increased efficiency of usage of a lithium-ion accumulator battery in an autonomous power supply system.

2 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: accumulators are charged with heteropolar current pulses with stabilised amplitudes of discharge and charge pulses at the ratio of amplitudes of discharge and charge pulses equal to 3÷4, with duration of a charge pulse equal to 200÷240 ms and a discharge pulse equal to 10÷20 ms with pauses between them equal to 0÷2 ms, amplitudes of the charge pulse are numerically equal to 0.2÷0.8 of the nominal capacitance, the charging process at the first cycles of capacitance generation is stopped when 250÷500% of the nominal capacitance has been sent to the accumulator, the charging process at subsequent cycles of capacitance generation is stopped when 120÷250% of the nominal capacitance has been sent to the accumulator, besides, the charging process at the first cycle of capacitance generation is stopped when 100% of the nominal capacitance has been sent to the accumulator, and the electrolyte is replaced, after which the charge is continued.

EFFECT: considerable reduction of a number of charge-discharge cycles of capacitance generation in closed nickel-cadmium accumulators and accumulator batteries.

FIELD: electricity.

SUBSTANCE: method to operate lithium-ion accumulator batteries consists in conducting charges and boost charges, storage in a charged condition, monitoring voltage of accumulators and periodical balancing of accumulators by voltage. Accumulators are balanced by selecting an accumulator with the lowest voltage and discharging other accumulators to the preset final voltage level.

EFFECT: simplified operation and higher efficiency of using lithium-ion accumulator batteries in an autonomous power supply system.

1 dwg

FIELD: electricity.

SUBSTANCE: battery of n chemical cells is featured by use of safety fuses as electroconductive components. Each safety fuse has the following peculiarity: in case of short-circuiting of any i-th (i=1,2,3,…n) key element that shunts circuit of series-link i-th safety fuse and i-th chemical cell i-th safety fuse is destroyed by current generated by power of i-th chemical cell. Besides in battery of chemical cells circuit of series-link key element and resistor is connected in parallel to each key element; this circuit is used for voltage grading of chemical cells. All key elements of battery can be based on transistors, in particular, on FET-transistors. Battery of chemical cells contains also battery current sensors and voltage sensors for chemical cells, device controlling key elements that is equipped with in-built programmed microcontroller measuring current of the battery and voltage of chemical cells in compliance with installed program or commands coming from external control device.

EFFECT: reliability enhancement.

7 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: invention is related to electrical industry and can be used for preparation of nickel-hydrogen accumulators for normal operation with man-made satellites, mainly for non-pressurised earth satellites with radiation cooling. Method of nickel-hydrogen accumulator preparation for normal operation with man-made satellites includes provision of environment temperature under launch vehicle fairing of carrier-rocket spacehead, initial charge by rated current with limitation of temperature increase for accumulator and further boosting by low current value in conditions of limited heat removal. At that pause should be taken between initial charge by rated current and boosting by low current value. According to invention charging with rated current and boosting with low current value should be performed within preset time periods with determinant limitation on accumulator temperature gradient in regard to ambient temperature for each individual mode; besides commencement of boosting should be planned in compliance with minimum time requirement before commencement of prohibition for electric works with spacehead as stipulated by process of carrier-rocket launching.

EFFECT: improvement of functional reliability and provision of effective charge for nickel-hydrogen accumulators at limited heat removal.

2 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: invention may be used operate lithium-ion accumulator batteries in autonomous power supply systems of artificial Earth satellite (AES). According to the invention, accumulator present voltage of each AB is monitored, they are charged one-by-one at interval τ3 with direct current until any of accumulators of each AB achieves preset voltage value, herewith, duration of each accumulator battery charging τ3i within period τ3 is set from relation: h, where Umaxi B - amount of maximum present accumulator voltage value in each i-th accumulator battery; n - number of accumulator batteries.

EFFECT: increased specific power characteristics AES electric power supply system and reliability of operation of lithium-ion AB in autonomous system of AES power supply.

2 cl, 1 dwg

FIELD: transport.

SUBSTANCE: set of inventions relates to method and device for maneuvering on slope/ Proposed method comprises the step of generating command for storing characteristics of slope. Slope characteristics correspond to readiness of driver and transport facility for starting. Readiness is defined proceeding from physical parameters of transport facilities. In particular, physical parameter represents time of transport facility stop. Proposed device automatic parking brake, brake disengagement control means, slope inclination transducer, transport facility speed metres, gearbox in-state determination means, transport facility stop time determination means, accelerator pedal position determination means, clutch pedal position determination means, and computer. Transport facility incorporates above described device.

EFFECT: possibility to maneuver on slope.

11 cl, 5 dwg

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