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Lead-acid storage battery electrolyte and preparation method therefor

A lead-acid battery and electrolyte technology, applied in lead-acid batteries, etc., to achieve the effects of reducing water loss, strong water retention capacity, and simple process

Inactive Publication Date: 2015-11-25
高金刚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because of its low price and mature technology, lead-acid batteries are now widely used. Although many new batteries have begun to appear, lead-acid batteries still have an irreplaceable position in many fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for preparing lead-acid battery electrolyte, comprising the steps of:

[0024] (1) Mix 1 part of sodium sulfate, 0.01 part of cobalt acetate, 2 parts of ammonium persulfate, 1 part of glycerol, 3 parts of carboxymethylcellulose sodium, 8 parts of catalyst and deionized water at 80 °C to obtain the first mixture;

[0025] (2) Mixing 50 parts of sulfuric acid with the first mixed solution obtained in step (1) to obtain a second mixed solution;

[0026] (3) Mix 1 part of fumed silica, 0.05 part of polyethylene emulsion with water to obtain a suspension;

[0027] (4) Mixing the suspension in step (3) with the second mixed solution in step (2) to obtain an electrolyte for a lead-acid battery.

[0028] The obtained lead-acid storage battery electrolyte is injected into the battery by using an acid filling machine to obtain a lead-acid storage battery, and the obtained lead-acid storage battery is tested to obtain a cycle life of more than 450 times.

Embodiment 2

[0030] A method for preparing lead-acid battery electrolyte, comprising the steps of:

[0031] (1) Mix 3 parts of sodium sulfate, 0.03 parts of cobalt acetate, 2.5 parts of ammonium persulfate, 1.5 parts of glycerol, 4 parts of sodium carboxymethyl cellulose, 9 parts of catalyst and deionized water at 90°C to obtain the first mixture;

[0032] (2) Mix 55 parts of sulfuric acid with the first mixed solution obtained in step (1) to obtain a second mixed solution;

[0033] (3) Mix 1.5 parts of fumed silica and 0.1 part of polyethylene emulsion with water to obtain a suspension;

[0034] (4) Mixing the suspension in step (3) with the second mixed solution in step (2) to obtain an electrolyte for a lead-acid battery.

[0035] The obtained lead-acid storage battery electrolyte is injected into the battery by using an acid filling machine to obtain a lead-acid storage battery, and the obtained lead-acid storage battery is tested to obtain a cycle life of more than 450 times.

Embodiment 3

[0037] A method for preparing lead-acid battery electrolyte, comprising the steps of:

[0038] (1) Mix 5 parts of sodium sulfate, 0.05 parts of cobalt acetate, 3 parts of ammonium persulfate, 2 parts of glycerin, 5 parts of sodium carboxymethyl cellulose, 10 parts of catalyst and deionized water at 100°C to obtain the first mixture;

[0039] (2) Mix 60 parts of sulfuric acid with the first mixed solution obtained in step (1) to obtain a second mixed solution;

[0040] (3) Mix 2 parts of fumed silica and 0.15 parts of polyethylene emulsion with water to obtain a suspension;

[0041] (4) Mixing the suspension in step (3) with the second mixed solution in step (2) to obtain an electrolyte for a lead-acid battery.

[0042] The obtained lead-acid storage battery electrolyte is injected into the battery by using an acid filling machine to obtain a lead-acid storage battery, and the obtained lead-acid storage battery is tested to obtain a cycle life of more than 450 times.

[0043...

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PUM

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Abstract

The invention discloses lead-acid storage battery electrolyte and a preparation method therefor. The lead-acid storage battery electrolyte comprises the components in parts by mass: 50-60 parts of sulfuric acid, 1-5 parts of sodium sulfate, 0.01-0.05 parts of cobaltous acetate, 1-2 parts of fumed silica, 2-3 parts of ammonium persulfate, 0.05-0.15 parts of polyethylene emulsion, 1-2 parts of glycerine, 3-5 parts of sodium carboxy methylcellulose, 8-10 parts of catalyst and 100 parts of deionized water. The invention also discloses a preparation method for the lead-acid storage battery electrolyte; the sulfuric acid, sodium sulfate, cobaltous acetate, fumed silica, ammonium persulfate, polyethylene emulsion, glycerine, sodium carboxy methylcellulose and the catalyst are mixed with the deionized water to obtain the lead-acid storage battery electrolyte. The preparation method can dramatically prolong the circle life of the lead-acid storage battery, is simple in process and good for applications.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a lead-acid battery electrolyte and a preparation method thereof. Background technique [0002] Since the lead-acid battery was invented in 1958, it has a history of more than 100 years. Lead-acid batteries have the advantages of simple structure, reliable performance, convenient use, easy access to raw materials and low price. They are widely used in many fields of national economy such as transportation, communication and national defense, and have become indispensable in social production and human life. energy products. [0003] Due to its low price and mature technology, lead-acid batteries are now widely used. Although many new batteries have begun to appear, lead-acid batteries still have an irreplaceable position in many fields. The five major components of a lead-acid battery are the positive electrode, the negative electrode, the diaphragm, the electrolyte, and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/08
CPCH01M10/08Y02E60/10
Inventor 高金刚
Owner 高金刚