Lead-acid storage battery, antimony ion adsorption partition board and preparation method thereof

A lead-acid battery, ion adsorption technology, applied in the direction of lead-acid batteries, battery components, circuits, etc., can solve the problems of intensified hydrogen evolution reaction at the negative electrode, increased rate of battery water decomposition, battery failure, etc., to improve the hydrogen evolution overpotential , reduce water loss and improve service life

Inactive Publication Date: 2017-05-03
ZHEJIANG NARADA POWER SOURCE CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The precipitation of antimony will aggravate the hydrogen evolution reaction at the negative electrode, increase the rate of battery water decomposition, and eventually lead to battery failure

Method used

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  • Lead-acid storage battery, antimony ion adsorption partition board and preparation method thereof
  • Lead-acid storage battery, antimony ion adsorption partition board and preparation method thereof
  • Lead-acid storage battery, antimony ion adsorption partition board and preparation method thereof

Examples

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Effect test

Embodiment 1

[0026] Mix the styrene ion exchange resin with an average diameter of 1μm and the ultrafine glass fiber with a diameter of 2μm and a length of 2mm in a ratio of 1:40, add a certain amount of water, and stir evenly into a slurry;

[0027] After mixing uniformly, suction filter to remove water, preliminary shape, and dry in 80 ℃ oven;

[0028] The dried and formed separators are cut into required shapes to obtain antimony ion adsorption separators for lead-acid batteries.

Embodiment 2

[0030] Mix styrene ion exchange resin with an average diameter of 0.5μm and ultrafine glass fiber with a diameter of 1μm and a length of 2mm at a ratio of 1:20, add a certain amount of water, and stir evenly into a slurry;

[0031] After mixing uniformly, suction filter to remove water, preliminary shape, and dry in 80 ℃ oven;

[0032] The dried and formed separators are cut into required shapes to obtain antimony ion adsorption separators for lead-acid batteries.

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Abstract

The invention discloses a lead-acid storage battery, an antimony ion adsorption partition board and a preparation method thereof. Ion exchange resin capable of adsorbing antimony ions is contained in the antimony ion adsorption partition board. The antimony ion adsorption partition board of the lead-acid storage battery can effectively adsorb antimony ions migrating to a negative pole from a positive pole, the precipitation of antimony element in the positive pole is reduced, the hydrogen evolution overpotential is improved, and the water loss of the battery is reduced, so that the service life of the battery is prolonged.

Description

Technical field [0001] The invention relates to a lead-acid battery and its antimony ion adsorption separator and a preparation method thereof. Background technique [0002] Lead-acid batteries are widely used in backup, start-up, power, energy storage and other fields due to their excellent cost performance. Lead-acid batteries in the power field need to have a high cycle life, and lead-antimony alloys are generally used as positive grids. However, the lead-antimony alloy grid has its inherent defects. In the process of use, the antimony element in the positive plate will dissolve into the electrolyte and reach the negative electrode as it diffuses and precipitate on the negative plate. The precipitation of antimony will intensify the hydrogen evolution reaction of the negative electrode, and the rate of water decomposition of the battery will increase, which will eventually cause the battery to fail. Summary of the invention [0003] In order to overcome the above shortcomings...

Claims

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Application Information

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IPC IPC(8): H01M2/16H01M10/06H01M2/14
CPCH01M10/06H01M50/403H01M50/411H01M50/431H01M50/44Y02E60/10
Inventor 陈冬倪丹刘桃松黄冬艳陆佩芳贾伟
Owner ZHEJIANG NARADA POWER SOURCE CO LTD
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