Improved accumulator partition

A battery separator and improved technology, applied in battery pack parts, circuits, electrical components, etc., can solve the problems of shortened cycle life, dry electrolyte, and low ability to maintain electrolyte, and achieve simplified design measures for poor solution, The effect of increased ability

Active Publication Date: 2006-03-22
CHAOWEI POWER CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The AGM separators currently used are generally made of a mixture of medium-alkali cotton, high-alkali cotton, recycled materials, and short fibers. This kind of separator has a low ability to maintain electrolyte. If the charging rate is too high, the electrolyte will be too large. Early wear and tear, causing the electrolyte to dry up and cause thermal runaway, resulting in shortened cycle life

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The mass ratio of each component of the separator in the prior art is shown in Table 1.

[0016] Ingredients name

mass percentage

Medium alkali cotton

45～65％

high alkali cotton

35～55％

Feedback

0～5％

short fibre

0～1％

[0017] The mass ratio of each component of the improved battery separator of the present invention is shown in Table 2.

[0018] Ingredients name

weight percentage

Medium alkali cotton

45～65％

high alkali cotton

35～55％

Feedback

0～5％

short fibre

0～1％

Nano silica

2～6％

Sodium Carboxymethyl Cellulose

0.01～0.5％

[0019] The implementation technological process of the present invention comprises:

[0020] Water production: including mechanical filtration, activated carbon filtration, precision filtration, reverse osmosis, anion exchangers, cation exchangers and water storage tanks.

[0021] We...

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PUM

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Abstract

This invention discloses an improved storage battery baffle in the following mass percentage for each component: medium alkali cotton: 45-65%, high alkali cotton: 35-55%, residual material: 0-5%, short fiber: 0-1%, nm SiO2: 2-6% and carboxymethylcellulose sodium: 0.01-0.5%, which increases the ability for absorbing electrolyte by adding some nm SiO2 and CMC.

Description

【Technical field】 [0001] The present invention relates to batteries, and more particularly to battery separators. 【Background technique】 [0002] The positive active material of the lead-acid battery is lead dioxide, the negative active material is sponge lead, and the electrolyte is dilute sulfuric acid solution. The discharge chemical reaction is that lead dioxide, sponge lead and electrolyte react to form lead sulfate and water. <chemistry num="001"> <chem file="200510061112_cml001.xml" / > < / chemistry> (Discharge reaction) The charging chemical reaction is that lead sulfate and water are converted into lead dioxide, sponge lead and dilute sulfuric acid. <chemistry num="002"> <chem file="200510061112_cml002.xml" / > < / chemistry> (Charging reaction) The rated voltage of a single lead-acid battery is 2.0V. Generally, it is connected in series to 6V and 12V for the starting and lighting of automobiles and motorcycles. The single battery ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/16H01M50/44H01M50/446
CPCY02E60/10
Inventor 周明明王焕祥
Owner CHAOWEI POWER CO LTD
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