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A kind of lead-acid battery electrolyte

A lead-acid battery and electrolyte technology, applied in the direction of lead-acid batteries, etc., can solve the problems of reducing the service life of the battery, increasing the internal pressure of the battery, and difficult sealing of the battery, so as to prolong the service life, increase the viscosity, and increase the battery capacity. Effect

Active Publication Date: 2017-03-22
TIANNENG GRP JIANGSU TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The hydrogen evolution reaction is a side reaction that occurs on the negative plate of many secondary batteries, including lead-acid batteries. The occurrence of the hydrogen evolution reaction will increase the internal pressure of the battery, making it difficult to seal the battery, and will cause the electrolyte to lose water. , reducing the service life of the battery, which leads to the eventual failure of the battery

Method used

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  • A kind of lead-acid battery electrolyte

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Take a certain amount of double distilled water, add concentrated sulfuric acid, adjust the density to 1.20g / cm 3 Take 1L of dilute sulfuric acid aqueous solution, add 570mg of cerium sulfate, 700mg of tin sulfate, 500mg of ammonium dichromate, 2500mg of tetrabutylammonium hydrogensulfate, 1000mg of sodium dodecylbenzenesulfonate into it, stir and mix thoroughly, Obtain lead-acid storage battery electrolyte.

Embodiment 2

[0020] Take a certain amount of double distilled water, add concentrated sulfuric acid, adjust the density to 1.25g / cm 3 Get 1L dilute sulfuric acid aqueous solution, add sodium sulfate 1000mg to it, germanium nitrate 200mg, bismuth sulfate 150mg, 2-hydroxybenzaldehyde 1000mg, polyethylene glycol 900mg fully stir and mix, obtain lead-acid storage battery electrolyte.

Embodiment 3

[0022] Take a certain amount of double distilled water, add concentrated sulfuric acid, adjust the density to 1.30g / cm 3 Take 1L of dilute sulfuric acid aqueous solution, add 600mg of cerium sulfate, 300mg of germanium nitrate, 600mg of ammonium dichromate, 3000mg of tetrabutylammonium bisulfate, 300mg of aqueous zinc stearate, ammonium perfluorooctane sulfonate 700mg, fully stirred and mixed to obtain lead-acid battery electrolyte.

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Abstract

The invention discloses electrolyte of a lead-acid storage battery. The electrolyte is prepared from oxygen evoluting and corrosion inhibiting matters, hydrogen evoluting and corrosion inhibiting matters, an acid medium corrosion inhibitor, an organic corrosion inhibitor and a surfactant mixed in a dilute sulfuric acid aqueous solution. Various additives are added into the electrolyte, the additives play a role of supplementing with one another on concentration and mixing proportion. Once the added concentration is excessive, not only is hydrogen evolution not inhibited, but also impurities are introduced to cause sulfation, even severe hydrogen evolution. Once the added concentration is over-small, a normal effect cannot be obtained. The service life of the battery with the electrolyte is terminated after circulation of 200 times, so that the service life of the battery is remarkably prolonged.

Description

technical field [0001] The invention relates to the field of lead-acid batteries, in particular to an electrolyte solution for lead-acid batteries. Background technique [0002] With the development of science and technology, the world's oil crisis, automobile exhaust pollution, the sustainable development of mankind is facing great challenges. To develop new chemical power sources and improve traditional batteries is an urgent problem to be tackled today. Although lead-acid batteries have a history of more than 150 years, due to their mature technology, stable performance, high safety, and low price, lead-acid batteries are still the most widely used secondary batteries except for portable power supplies. [0003] The hydrogen evolution reaction is a side reaction that occurs on the negative plate of many secondary batteries, including lead-acid batteries. The occurrence of the hydrogen evolution reaction will increase the internal pressure of the battery, making it diffic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/08
CPCY02E60/10
Inventor 杨惠强仝鹏阳赵薇胡建强陈红雨
Owner TIANNENG GRP JIANGSU TECH