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High temperature failure rubber

A rubber, high-temperature technology, applied in the direction of electrical components, circuits, battery pack components, etc., can solve the problems of battery exhaust, battery explosion, etc., and achieve excellent safety performance and good charge and discharge performance.

Active Publication Date: 2010-07-21
SHENZHEN BETTERPOWER BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Due to the high stability of the anti-explosion ball used in the existing traditional technology, the battery cannot be exhausted, which causes the battery to explode.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] A further detailed description will be given below in conjunction with specific embodiments of the present invention.

[0008] The present invention is mainly aimed at optimizing the technology and formula of the rubber used to manufacture explosion-proof balls, by adding various additives on the basis of EPDM rubber, the various additives include 0.2-0.5% carbon black, and the carbon black is preferably 0.3%; 0.01~0.10% paraffin base oil, preferably 0.05 of paraffin base oil; 0.01~0.10% stearic acid, preferably 0.05 stearic acid; 0.10~0.30% sulfur, preferably 0.20 sulfur; 0.01~0.10% peroxide curing agent, peroxide The vulcanizing agent is preferably 0.05; 0.4-1.0% accelerator, the accelerator is preferably 0.7; 0.4-1.0% anti-aging agent, the anti-aging agent is preferably 0.8, and the balance is EPDM rubber.

[0009] The technological process of making battery explosion-proof balls from rubber is as follows:

[0010] Material weighing - rubber mixing - banburying into...

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PUM

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Abstract

The invention discloses a high temperature failure rubber for manufacturing a battery explosion-proof ball. Based on EPDM rubber, multiple additives are added, wherein the additives comprise 0.2-0.5% of carbon black, 0.01-0.10% of paraffinic oil, 0.01-0.10% of stearic acid, 0.10-0.30 of sulphur, 0.01-0.10% of peroxide vulcanizing agent, 0.4-1.0% of promoter and 0.4-1.0% of anti-aging agent. The rubber material can lose efficacy at high temperature and reduce the pressure of a cover cap, thereby achieving the effect of discharging the gas in the battery and further avoiding the explosion of the battery.

Description

technical field [0001] The invention relates to a high-temperature failure rubber, in particular to a high-temperature failure rubber used for manufacturing battery explosion-proof balls. Background technique [0002] With the rapid development of electronic digital products and the improvement of people's living standards, the requirements for battery performance are also increasing. The existing market not only has requirements for conventional performance such as battery capacity and life, but also puts forward higher requirements for high-current charging and discharging performance and safety performance of batteries. The design of sealed batteries adopts the method of excess negative electrode capacity, but this design still inevitably raises the internal pressure of the battery. At present, the purpose of releasing the gas inside the battery and reducing the internal pressure of the battery is mainly achieved by opening the explosion-proof ball. Therefore, the perfo...

Claims

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Application Information

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IPC IPC(8): C08L23/16C08K13/02C08K3/04C08K5/10C08K3/06C08K5/14H01M2/12H01M50/317H01M50/375
CPCY02E60/12Y02E60/10
Inventor 龙翔叶凯范自松
Owner SHENZHEN BETTERPOWER BATTERY
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