Sulphurous gel electrolyte for valve-regulated batteries and method of its manufacturing

FIELD: electricity.

SUBSTANCE: sulphurous gel electrolyte for valve-regulated batteries containing sulphuric acid, distilled water and silicone oxide according to the invention contains additionally sodium sulphate and Aerosil 200 as silicone oxide with specific surface area of 175.0-225.0 m2/g, at the following content of components, wt %: sodium sulphate 0.9-1.3; Aerosil 200 4.9-5.3; sulphuric acid with density of 1.83-1.84 g/cm3 26.0-29.0; distilled water - the remaining share. The method for electrolyte manufacturing includes batchwise introduction of solid components to liquid components of the electrolyte and their stirring. The preset quantity of sulphuric acid with density of 1.83-1.84 g/cm3 is fed to stirred distilled water in order to reach density of sulphurous electrolyte of 1.24±0.005 g/cm3, thereupon the electrolyte is cooled down up to temperature less than 15°C; to the electrolyte stirred by stirrer with the preset rotation rate sodium sulphate is fed uniformly and stirred until sodium sulphate is solved completely, upon its solution Aerosil 200 is fed uniformly to the stirred mixture and the obtained mixture is stirred until gel is formed, at significant increase in rotation rate the ready gel acquires the preset value of viscosity.

EFFECT: improved conductivity and density of discharging current in lead-acid batteries due to improved impregnation of porous active mass for electrodes and separators with electrolyte.

2 cl, 1 tbl, 11 ex

 



 

Same patents:

FIELD: electricity.

SUBSTANCE: ventilation openings are located in the cover or plug of accumulator and represent two non-coaxial openings connected to each other (which can have in cross section the shape of circle, oval, multangular, and along its axis - the shape of cone, spiral, broker line) and forming a labyrinth channel the beginning of which lies on inner surface of cover or plug of accumulator, and the end lies on outer surface of the cover or plug of accumulator. At that, labyrinth channel envelopes vertical symmetry axis of cover or plug of accumulator.

EFFECT: providing non-spillage of electrolyte from accumulator at its inclination at maintaining unobstructed removal of gases forming in accumulator, and simple manufacture.

2 dwg

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering and may be used for manufacturing lead-acid batteries. Catalytic gas recombination device contains gas-proofed housing where porous container with catalyst is located. The housing is inside refrigerator where cooling fluid runs through. The cross section of inlet channel is more than the cross section of the outlet channel. The inlet channel cross section ratio to the outlet channel cross section is 1.3:1.0. It creates stable pressure in the channel and high speed of cooling fluid running.

EFFECT: increasing effectiveness of hydrogen and oxygen recombination into water and its return to battery when charged with high currents.

1 dwg, 1 tbl

FIELD: electrical engineering.

SUBSTANCE: proposed storage battery safety device has pressure relief unit designed to release pressure within battery cell when it exceeds desired value and cup closing pressure relief unit to form cavity therein. Pressure relief unit immediately responds to pressure rise within cell above desired value and releases it therefrom into surrounding atmosphere thereby preventing explosion within battery.

EFFECT: enhanced reliability of storage battery.

8 cl, 11 dwg

The invention relates to a recombination device for the catalytic recombination resulting in batteries, hydrogen and oxygen

The invention relates to rechargeable batteries, in particular to an improved device for issue out of the gas generated inside the battery

The invention relates to the field of electric power industry, in particular to ensure operation of the electrochemical generator of hydrogen-oxygen type and is intended for use on manned submarines and spacecrafts

The invention relates to a sealed alkaline elements of multiple actions, such as alkaline elements based on the zinc/manganese dioxide

The invention relates to the electrical industry and can be used in the manufacture of chemical current sources (Hits)

FIELD: electrical engineering.

SUBSTANCE: first, storage battery pores volume is filled with liquid electrolyte sulphate, then, remaining volume is filled with gel electrolyte sulphate. Note here that storage battery is filled in two steps: during first step, entire volume of storage battery is filled with liquid electrolyte (sulphuric acid solution). After allowance, electrolyte is rained from storage battery except for that existing in threshold volume of electrode unit. During second step, free volume is filled with young colloid solution of sulphuric acid (sulphuric acid solution with addition of stiffener - aerosil with concentration of (5.6÷9%) with subsequent allowance until colloid solution is completely structured and gel is formed in storage battery.

EFFECT: higher efficiency of filling sealed lead storage batter with electrolyte and specific capacity properties.

1 tbl

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; liquid silicate electrolyte and its use for storage batteries.

SUBSTANCE: proposed electrolyte preparation process includes addition of silicic acid sol in the amount of 5 - 15 parts by weight containing silicon dioxide (SiO2) in the amount of 40 - 60 mass percent to water taken in the amount of 15 - 20 parts by weigh while stirring mixture until its concentration, as measured by Baume hydrometer, ranges between 0.65 and 0.85 Baume degrees; addition of inorganic acid to mixture obtained in the process until its pH ranges between 1 and 4; placement of mixture obtained into magnetic field whose flux density ranges between 0.1 and 0.6 T (between 1000 and 6000 G) for 5 to 10 minutes; and stirring of magnetized mixture upon its withdrawal from magnetic field until its dynamic viscosity becomes lower than 0.02 mP-s to obtain low-sodium-content liquid electrolyte. Storage battery using proposed electrolyte is characterized in specific power capacity of 53 W and higher, its service life is increased from 350 to 400 or more charge-discharge cycles; such battery will operate normally at low and high temperatures, its operating temperature range being between -50 and +60 °C.

EFFECT: enhanced capacity and service life, enlarged operating temperature range of battery using proposed electrolyte.

7 cl, 2 dwg, 2 ex

FIELD: electrical engineering; separators for sealed absorbed-electrolyte lead batteries.

SUBSTANCE: proposed glass fiber blanket separator characterized in optimal porous structure aiding in complete absorption of electrolyte is, essentially, composition of microporous spatula glass fibers of microscopic thinness, fiber mean diameter being 0.35 to 0.40 and 0.22 to 0.25 μm and chemically resistant latex as binder, proportion of components being as follows, mass percent: fiber whose mean diameter is between 0.35 and 0.40 μm, 78 - 80; fiber whose mean diameter is between 0.22 and 0.25 μm, 15 - 17; chemically resistant latex, the rest.

EFFECT: reduced electrical resistance and enhanced mechanical strength ensuring high separating properties.

1 cl, 1 tbl, 4 ex

The invention relates to the production of batteries, in particular to a method of filling electrolyte

The invention relates to the field of electrochemistry, and more particularly to the use of special additives to improve the technological properties of electrolytes in lead-acid batteries

FIELD: electricity.

SUBSTANCE: according to the invention, an energy accumulation device comprises at least one negative electrode, besides, each negative electrode is separately chosen from the following: (i) an electrode containing a material of a negative battery electrode; (ii) an electrode containing a material of a capacitor electrode; (iii) a mixed electrode containing either a mixture of materials of a battery electrode and a capacitor electrode or a section of a battery electrode material and a section of a capacitor electrode or their combination, besides, the energy accumulation device comprises either at least one electrode of the (iii) type or at least one electrode of each of (i) and (ii) types, at least one positive electrode, besides, the positive electrode contains a material of a positive battery electrode and an additive increasing charging capacity, such as one additive or a mixture of a carbon nanomaterial, a carbon fibre grown from vapours, fullerene or their mixture and conducting materials based on stannum oxide.

EFFECT: increased service life.

33 cl, 25 dwg, 3 tbl, 11 ex

FIELD: electricity.

SUBSTANCE: lead-acid battery comprises a negative electrode, comprising an electrode material of a battery on the basis of lead and an area of a capacitor material lying above the battery electrode material on the basis of lead. Each electrode is in electric connection with one external output of the battery, and at least one positive battery electrode on the basis of lead dioxide, besides, each positive electrode is in electric connection with the second external output of the battery, a separator installed between electrodes facing each other, electrode filling at least the space of these electrodes and separators, at the same time the capacitor material lying above the battery electrode material on the basis of lead contains 20-65 wt % of carbonaceous material with high electric conductivity, 30-70% carbonaceous material with high specific area of the surface, at least 0.1% of lead and a binder.

EFFECT: higher service life and improved performance properties.

21 cl, 2 dwg, 13 ex

FIELD: electricity.

SUBSTANCE: paste for negative electrode contains plumbum dust, H2SO4, expander that includes BaSO4, sodium lignosulphonate and water, additionally it contains soft carbon with the following proportion of components, wt %: H2SO4 8-10 BaSO4 0.3-0.5 sodium lignosulphonate 0.1-0.2 soft carbon 0.2-0.3 water 7-8 plumbum dust the rest, note that BaSO4 grain size does not exceed 10 nm; additionally the paste can contain polyvinyl-chloride fibre in quantity of 0.03-0.06 wt %. Method of preparation of paste for negative electrode by mixing plumbum dust, H2SO4 and expander consists in, first, mixing of plumbum dust and expander for 8-15 minutes, then adding of water, the mixture is stirred for 8-15 minutes, after that H2SO4 is added during stirring with speed 0.7-0.8 l/min, note that the mixture temperature is maintained within 30-70°C.

EFFECT: increase of battery service life and prevention of battery capacity loss.

FIELD: electricity.

SUBSTANCE: according to the invention, the paste for the positive electrode of the lead accumulator contains a lead powder, a sulfuric acid, an silicon oxide of trade marks "Silicon dioxide", GOST 9428-73 (PFK KHIMLUKS, Moscow) or "Ekosil-melur - 3" (LLC Trading House "Quartz", St. Petersburg (GU).

EFFECT: development of a paste that is most simple in a technological respect, provides for high mechanical strength of positive electrodes with preservation of their high porosity, kinetic capacitance and their increased service life.

1 tbl

FIELD: engines and pumps.

SUBSTANCE: electrolytic device for facilitating the internal combustion engine lowering includes storage battery, storage tank of concentrated electrolyte with built-in hydro-electric valve-pump and pneumatic valve. At that, heating element is arranged in the tank.

EFFECT: improving operating reliability of storage battery under conditions of low temperatures at internal combustion engine start-up.

1 dwg

FIELD: electricity.

SUBSTANCE: method for determination of discharge degree for lead-acid battery (LAB) consists in the following: before tests using empirical formula, which sets functional relation of LAB discharge degree ΔC on change of electrolyte density Δρ at discharge, value of specific discharge index ΔCsp is determined with use of electrolyte temperature t, rated LAB capacitance Cr ΔC=f(Δρ, ΔCsp, t, Cr), (1); during tests electrolyte density ρ and temperature t are measured and using formula (1) degree of LAB discharge is determined; additionally before tests to determine value of specific discharge index empiric formula is used, which considers individual characteristics of LAB and sets dependency of its specific discharge index ΔCsp on value of theoretical specific discharge index of LAB ΔCsp min - ΔCsp=ΔCsp minxKv (2); correction factor Kv for individual characteristics of tested LAB sets relation between values of actual specific volume of electrolyte Vel sp and theoretic minimum specific volume of electrolyte Vsp min. Kv=Vel sp /Vsp min (3); using these values and functional relation (1) discharge degree ΔC is determined for LAB.

EFFECT: improvement in accuracy of discharge degree determination for operated lead-acid batteries.

4 dwg, 1 ex

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