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Separator plate for lead acid battery

A technology for lead-acid batteries and separators, which is applied in the direction of battery components, circuits, separators/films/diaphragms/spacers, etc., and can solve the problems of poor impact resistance, insufficient separator looseness, and lead-acid battery separators. Poor structural strength and other problems, to achieve the effect of improving liquid storage performance, excellent battery reaction performance, improving overall strength and impact resistance

Active Publication Date: 2017-03-22
CHANGSHU WANLONG POWER TECH R&D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing lead-acid battery separator has poor structural strength, is not impact resistant, and the separator has insufficient porosity

Method used

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  • Separator plate for lead acid battery
  • Separator plate for lead acid battery

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A lead-acid battery separator, comprising two layers of a first separator 1 and a second separator 2 arranged alternately, the outer periphery of the first separator 1 and the second separator 2 is coated with an insulating frame 3, the A layer of diaphragm 4 is arranged in the gap between the insulating frame and the two layers of partitions; the thickness of the first partition 1 is less than or equal to the thickness of the second partition 2; the thickness of the diaphragm 4 is the total thickness of the partition. 1 / 10~1 / 5 of the thickness.

[0020] The first separator 1 is a rubber separator, and small circular holes 5 with a diameter of 2.5-3 mm are uniformly arranged on its surface.

[0021] The second separator 2 is a PVC separator, and its formula comprises the following components in parts by weight: 70-90 parts of high molecular weight polyethylene, 40-60 parts of glass fiber particles, 20-30 parts of sepiolite powder, 100 parts of lubricating oil ~200 copi...

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Abstract

The invention discloses a separator plate for a lead acid battery. The separator plate comprises a first separator plate and a second separator plate alternately arranged; the peripheries of the first separator plate and the second separator plate are coated with an insulation frame; a layer of diaphragm is arranged in a gap between the insulation frame and the first and second separator plates; and the thickness of the diaphragm is 1 / 10 to 1 / 5 of the total thickness of the separator plate. The separator plate for the lead acid battery is simple in structure and rational in design; through compounding of a three-layer structure, the integral strength, impact resistance and electrolyte storage performance of the separator plate are improved; so the lead acid battery is endowed with excellent conductivity and cell reaction performance.

Description

technical field [0001] The invention relates to the field of accumulators, in particular to a lead-acid accumulator separator. Background technique [0002] The separator is an important component of the battery. It is placed between the positive and negative plates of the battery and has the following functions. One is to prevent the positive and negative electrodes from contacting each other and cause the internal short circuit of the battery; the other is to have a certain strength to prevent the plates from Deformation, bending and active material falling off; the third is to store a necessary amount of electrolyte inside the separator to ensure high conductivity and battery response requirements. In addition, the separator material is also required to be stable, containing only a small amount of harmful ions or no harmful ions. According to the above requirements, a high-quality separator should have the following characteristics: 1. The separator material itself is an...

Claims

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Application Information

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IPC IPC(8): H01M2/18H01M2/16H01M50/417H01M50/44H01M50/489
CPCH01M50/409H01M50/463Y02E60/10
Inventor 汪建中
Owner CHANGSHU WANLONG POWER TECH R&D CO LTD