Activating additive for lead acid batteries

 

(57) Abstract:

The invention relates to chemical current sources, in particular for lead batteries. The activator consists of depassivated parts and a dispersant, the ratio of deactivator and dispersant by weight is 1:1-1:0,1, and as a dispersant taken, in particular soda ash. The combination of deactivator and dispersant provides quick dissolving the additive in the electrolyte, thus achieved the penetration of the activating part of the additive into the interior of the electrode Assembly. This reduces the start time efficient recovery securitarian electrodes, capable of improving operability of batteries in the cold, especially in the starter mode of the discharge. 1 C.p. f-crystals, 1 Il.

The invention relates to chemical current sources, in particular for lead batteries.

Known activating additive in the electrolyte lead-acid batteries to prevent sulfation of the electrode plates, restoring the battery capacity. This Supplement is known as a modifier of "Chicos" ("Technical conditions TU 2114-001-34908320-94").

Known also selected as the prototype on which cumulator", MCI H 01 M 10/36, publ. 09.05.86). In this patent, the electrolyte contains sulphates of zinc and/or cadmium and supplements regulate the process of electrolysis, namely, sulfates of alkali metals and traces of transition metals and mercury.

A common disadvantage of the above technical solutions is that these additives do not reduce the self-discharge and gassing, which is very important for the use of batteries, especially in confined areas. Experiments have shown that these additives in the electrolyte do not provide an effective process of desulfatation lead plates during operation of the batteries in the cold, especially in the starting cycle of discharge, and also when storing batteries in a charged condition without maintenance. The invention solves the problem of reducing the time of the beginning effective recovery securitarian plates. To achieve this, the technical result of the proposed activator, consisting of well-known depressivity (desulfurase) parts and dispersant.

The combination of deactivator and dispersant provides quick dissolving the additive in the electrolyte, thus achieved the penetration of the activating part of the additive in NR the x electrodes, capable of improving the health of the batteries in the cold, especially in the starter mode of the discharge.

As depressivity (desulfurase) part used BHT (GOST 10.894-76), as a dispersant is sodium carbonate. This effect is achieved by the fact that the ratio depassivated part of the additive to the dispersant is 1:1-1:0,1.

The invention is illustrated by the following examples.

Example 1. In the electrolyte of starter batteries after bringing them into working condition is entered BHT in the amount of 1.5 g/l soda ash in the amount of 0.5 g/L. When the battery discharge at -30oAfter supplementation, the average discharge voltage is increased by 0.05, which increases starting power of the battery.

Example 2. After bringing stationary batteries and supplementation with a ratio of deactivator and dispersant 1:0.1 drop in density of the electrolyte (see drawing), characterizing the degree of sulfate crystallization, during long-term storage of batteries in a charged state is slowed down, allowing you to store the battery in a constant readiness without additional maintenance over a long time.

trichomania fact, the ratio of deactivator and dispersant by weight is 1: 11: 0,1.

2. Additive under item 1, characterized in that as a dispersant taken soda ash.

 

Same patents:
The invention relates to the field of electrical engineering, in particular for lead-acid batteries

The invention relates to a new method of obtaining perphosphate lithium General formula (I), where a = 1, 2, 3, 4, or 5, b = 0 or 1, C = 0, 1, 2 or 3, d = 0, 1, 2 or 3; e = 1, 2, 3, or 4, provided that the sum of a+e = 6, the sum of b+c+d = 3, and b and C are not simultaneously denote 0, provided the ligands (CHbFc(CF3)d) can be different, and monochlor - or fluorine-, dichloro - or debtor, chlortetracycline, hormone, HARDI-, Hartry or chlortetracycline, formano, Ferdi-, fortri or fortetracycline or cryptomonadales subjected to electrochemical fluorination in an inert solvent, the resulting mixture of products if necessary, divide by distillation at various fluorinated products and the fluorinated alkylphosphine, put in an aprotic, polar solvent at from -35 to 60oWith interaction with lithium fluoride
The invention relates to the field of electrical engineering, in particular for lead-acid batteries

The invention relates to electrical engineering and can be used in the manufacture of chemical current sources (CCS), namely in the preparation of electrolytes

The invention relates to electrical engineering and can be used in the manufacture and treatment" failed due to sulfate crystallization of lead batteries

FIELD: chemical current supplies; electrolytes used for lead-acid batteries.

SUBSTANCE: electrolyte is doped with polyacrylamide in the amount of 0.001 to 6.0 mass percent per amount of electrolyte. Polyacrylamide added to electrolyte depends for its action on its coagulating properties and on increase of electrolyte viscosity which holds powdered active masses and products of reaction on electrolyte surface thereby preventing their fall-down, creeping, and wash-out. Polyacrylamide is introduced in the form of its aqueous solution before or after battery is filled with electrolyte to function as its additive.

EFFECT: improved operating characteristics and enhanced service life of batteries.

2 cl

FIELD: electrical engineering; chemical current sources; production of lead-acid cells, additives for sulfuric-acid electrolytes in particular.

SUBSTANCE: proposed additive is made from mixture of sulfate of metal with phosphonocarboxylic acids and aminoalkylphosphonic or hydroxyalkylene diphosphonous acids in diluted sulfuric-acid medium at pH no more than 0.8 and total content of phosphonous acids equal to 0.001-0.015 mass-% and metal sulfate of 10-18 mass-%. Additive may additionally include fluorine-containing surfactants in the amount of 0.01-0.1 mass-%. Proposed additive is used for excluding sulfitation of plates of lead-acid cells and restoration of sulfated storage batteries.

EFFECT: enhanced efficiency.

5 cl, 3 ex

FIELD: electrical engineering; lead battery manufacture.

SUBSTANCE: proposed lead battery has strengthened active material on its positive plate thereby enhancing its utilization efficiency at low internal resistance of battery. Novelty is that only positive plates hold in their voids gel-like sulfuric-acid electrolyte and remaining space of battery is filled with liquid sulfuric acid electrolyte.

EFFECT: enlarged service life of battery.

1 cl, 1 tbl

FIELD: electrical engineering.

SUBSTANCE: proposed method for preparing electrolyte aqueous component for chemical current supply includes magnetization of distilled water for which purpose permanent magnet is immersed in the latter, then water is heated to boiling temperature, and boiling water is doped with animal-origin substrate in the amount of 5 to 8 g per 1 liter of water and boiled for 20 - 30 minutes, whereupon vegetable-origin oil in the amount of 15 - 20 ml per 1 liter of water and vegetable-origin resin in the amount of 20 - 25 ml per 1 liter of water are added thereto, and boiling is continued for 5 - 10 minutes; then solution obtained is cooled down and filtered off.

EFFECT: enhanced power characteristics of battery.

4 cl, 1 tbl

FIELD: electrical engineering.

SUBSTANCE: proposed method is used for reconditioning lead battery cells filled with sulfuric acid based electrolyte using additive based on aqueous solution of hydrogen peroxide, saccharides, and/or aldehydes, or their derivatives. Novelty is that lead battery is alternately or periodically charged and discharged in the course of electrochemical reconditioning of cells upon its treatment with some reconditioning additives based on aqueous solution of hydrogen peroxide and after main charge. Battery is charged to full possible level by current amounting to 1.1-4% of rated value and its discharge is conducted with current of 0.01-5% of rated capacity of cell or battery; as an alternative, battery is charged in two phases by current of constant magnitude. Discharge below admissible value is conducted by current amounting to 1 to 4% of rated capacity followed by charging with current amounting to 3-10% of battery capacity until voltage per cell or per any cell of battery is reduced to 1.6 V. In the process battery acquires 10-15% of its rated capacity; entire procedure is repeated two to five times. Reconditioning additive has 1 to 70 ml of sulfuric acid at density of 1 to 1.32 g·cm-3, 0.1 to 10 g of saccharides in the form of solid material and/or aldehydes, or their derivatives, 0.1 to 10 g of sodium and/or potassium bicarbonate, and/or at least one hydroxide out of group of alkali metals in the form of solid material, and 0.1 to 20 g (better 0.5 to 2 g) of disulfonic acid dinaphthyl methane disodium salt per every liter of hydrogen peroxide aqueous solution. Reconditioning additive can also incorporate 0.1 to 10 g of sodium perborate and/or tetraborate, and/or pyrophosphate in the form of solid material.

EFFECT: enhanced battery capacity exceeding primary rated value.

11 cl, 5 ex

FIELD: electricity.

SUBSTANCE: invention is attributed to lead batteries (AB). In this invention lead AB contains group of plates fitted into accumulator jar and ionogen introduced in it for plate group saturating with ionogen with simultaneous forming processing. Here lead AB is adapted to be used partly charged when charge condition is limited within interval from exceeding 70% to less than 100%. Plate group is formed by package consisting of large number of negative electrode bases including grid bases filled with active material of negative electrodes, of large number of positive electrode bases including grid bases filled with active material of positive electrodes and porous separator located between negative electrode bases and positive electrode bases. Ionogen contains at least one kind of ions selected from group consisting of aluminium ions, selenium ions and titanium ions.

EFFECT: creation of lead battery suitable to be used in partly charged condition.

23 cl, 9 tbl, 71 ex

FIELD: chemistry.

SUBSTANCE: invention relates to compounds of formula I, production and use thereof to obtain corresponding organophosphinates [Kt]z+ z[(CnHmF2n+1-m)xPCIyF6.x.y]- (I) where [Kt]z+ is an organic cation of formula (1) [NR4]' (1) where R is an optionally phenyl-substituted linear C1-4-alkyl; formula (2) [PR24]+ (2) where R2 is independently C6-14-alkyl; or formula (6) [HetN]z+ (6), where HetNz+ is a heterocyclic cation selected from a group comprising imidazolium, pyrazolium, dihydroimidazolium, pyrrolidinium, triazolium, pyridinium, pyridazinium, pyrimidinium, piperidinium, piperazinium, pyrazinium, R1,-R4, denote H or C1-10-alkyl; n=1-4, m=0 to 2n+1, x=1-4, y=1, z=1-2, under the condition that x+y<5.

EFFECT: novel compounds, a method of producing said compounds and use of said compounds to obtain valuable compounds are disclosed.

12 cl, 10 ex

FIELD: electricity.

SUBSTANCE: as halogenide of another element, potassium bromide is taken at the following ratio of components (wt %): lithium nitrate 76.5…73.5; potassium bromide 23.5…26.5.

EFFECT: reduced temperature of melting and specific enthalpy of melting, which reduces power inputs for putting electrolyte into working condition and expands temperature range of electrolyte usage.

5 ex

FIELD: electricity.

SUBSTANCE: invention relates to chemical current sources, particularly to compositions of electrolytes, used in lead-acid accumulators, and can be used for production of accumulator batteries for electric vehicles, automobiles with combined power plant, as well as for vehicles with traditional petrol engine. Electrolyte contains, wt %: borate methylphosphite 0.6-0.8, perfluoropolyether acids flouranhydrides with molecular weight of 800-1,000 0.1-0.3, Chitosan 0.1-0.3, sulphuric acid 20.0-30.0, and distilled water up to 100.

EFFECT: technical result is improved electrical and operating characteristics of lead accumulator, as well as increasing its service life.

1 cl, 2 tbl, 5 ex

FIELD: chemical current supplies; electrolytes used for lead-acid batteries.

SUBSTANCE: electrolyte is doped with polyacrylamide in the amount of 0.001 to 6.0 mass percent per amount of electrolyte. Polyacrylamide added to electrolyte depends for its action on its coagulating properties and on increase of electrolyte viscosity which holds powdered active masses and products of reaction on electrolyte surface thereby preventing their fall-down, creeping, and wash-out. Polyacrylamide is introduced in the form of its aqueous solution before or after battery is filled with electrolyte to function as its additive.

EFFECT: improved operating characteristics and enhanced service life of batteries.

2 cl

FIELD: electrical engineering.

SUBSTANCE: proposed method for cycling lead-acid batteries includes following steps: withdrawal of first electrolyte of desired concentration and temperature from first tank; distribution of mentioned first electrolyte within battery; continuous circulation of mentioned first electrolyte at predetermined and actually constant concentration and temperature for predetermined primary charge time; DC current supply to mentioned batteries in the course of circulation of mentioned first electrolyte within preset primary charge time; stopping of mentioned first electrolyte circulation followed by circulation of second electrolyte in mentioned batteries, mentioned second electrolyte of higher concentration compared with that of primary electrolyte being taken from second tank at actually constant temperature during additional preset time; DC current supply to mentioned batteries in the course of mentioned second electrolyte circulation within preset secondary charge time.

EFFECT: enhanced cycling speed and safety of process.

19 cl, 3 dwg 1 tbl

FIELD: electrotechnical industry.

SUBSTANCE: invention relates to electrotechnical industry and can be applied to production of lead accumulators (batteries); in accordance with the invention the polyvinyl alcohol with gram-molecular weight of about 5000÷1000000 and content of acetate groups 0.4÷20%, concentration 0.1÷10 mass percent, is used as an additive densifier of sulfuric acid electrolyte, at that the polyvinyl alcohol is either added into the battery before filling the electrolyte or directly to the sulfuric acid electrolyte before pouring it into the battery; thanks to that the structuring of the electrolyte containing the polyvinyl alcohol with the above characteristics flows very slowly, the efficiency of the filling the battery with the electrolyte is increasing: pores of electrodes and separators manage to soak fully before the electrolyte comes fatty; the high efficiency of the batteries filling allows to fill the sealed battery without vacuuming.

EFFECT: enhancement of the capacitative features of the sealed lead battery.

1 cl

Up!