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A lead-acid battery separator

A lead-acid battery and separator technology, which is applied in battery pack parts, separators/films/diaphragms/spacers, circuits, etc. Poor structural strength and other problems, to achieve the effects of excellent battery reaction performance, improved liquid storage performance, improved overall strength and impact resistance

Active Publication Date: 2019-07-02
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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  • A lead-acid battery separator
  • A lead-acid battery separator
  • A lead-acid battery separator

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Experimental program
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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 for a lead-acid storage battery, which comprises a first separator and a second separator arranged alternately in two layers, the outer peripheries of the first separator and the second separator are covered with an insulating frame, the insulating A diaphragm is arranged in the gap between the frame and the two partitions; the thickness of the diaphragm is 1 / 10-1 / 5 of the total thickness of the partitions. The separator of the lead-acid storage battery of the present invention has a simple structure and a reasonable design. Through the composite design of the three-layer structure, on the one hand, the overall strength and impact resistance of the separator are improved, and on the other hand, the liquid storage performance of the separator is improved. , thus endowing the lead-acid battery with excellent conductivity and battery 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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Patent Type & Authority Patents(China)
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