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Conductive polyphenylene sulfide resin, preparation method thereof and power battery

A polyphenylene sulfide resin and polyphenylene sulfide technology, which is applied in the field of new energy vehicle batteries, can solve the problems of inability to ensure the use performance of power batteries, current fluctuations, and large changes in the resistance value of power batteries.

Inactive Publication Date: 2018-11-16
池州市骏智机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The power source of new energy vehicles is generally power batteries, mainly lithium-ion batteries and ternary batteries. However, the power batteries currently used are greatly affected by the environment. After a period of time or in a high temperature environment, the resistance value of the power battery will change. Larger, with a variation range of 2 to 10000Ω, resulting in abnormal fluctuations caused by current, which cannot ensure the performance of the power battery, such as battery life, service life, etc.

Method used

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  • Conductive polyphenylene sulfide resin, preparation method thereof and power battery
  • Conductive polyphenylene sulfide resin, preparation method thereof and power battery
  • Conductive polyphenylene sulfide resin, preparation method thereof and power battery

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preparation example Construction

[0043] The present invention also provides a preparation method of conductive polyphenylene sulfide resin, comprising the following steps:

[0044] In terms of mass fraction, mix 25-60% polyphenylene sulfide, 15-40% silicate glass fiber, 5-40% calcium carbonate, 0.1-1% carbon black and 1-15% carbon fiber , and perform injection molding to obtain conductive polyphenylene sulfide resin.

[0045] In the present invention, the types, sources and amounts of the various raw materials are consistent with the types, sources and amounts of the various raw materials mentioned above, and will not be repeated here.

[0046] In the present invention, the temperature of the mold used in the injection molding is preferably 130-150°C, more preferably 140°C; the temperature of the four stages of the barrel in the injection molding is set as follows: the first stage: 290-300°C; The second stage: 300-320°C; the third stage: 310-330°C; the fourth stage: 310-330°C; the temperature of the nozzle i...

Embodiment 1

[0053] Mix the ingredients according to the following ratio:

[0054] Polyphenylene sulfide: 45%;

[0055] Silicate glass fiber: 35%;

[0056] Calcium carbonate: 10%;

[0057] Carbon black: 1%;

[0058] Carbon fiber: 9%;

[0059] Fill the obtained mixed raw material into the barrel, set the temperature of the fourth stage of the barrel, inject the mixed raw material into the mold through a nozzle at 310°C, the mold temperature is 130°C, and cool and shape the mold after filling to obtain a polyphenylene sulfide resin battery cover plate.

[0060] Among them, the temperature settings of the four stages of the barrel are as follows: the first stage: 290°C; the second stage: 300°C; the third stage: 310°C; the fourth stage: 310°C;

[0061] The injection molding pressure is 80MPa, and the speed is 40mm / s.

Embodiment 2

[0063] Mix the ingredients according to the following ratio:

[0064] Polyphenylene sulfide: 60%;

[0065] Silicate glass fiber: 25%;

[0066] Calcium carbonate: 10%;

[0067] Carbon black: 0.5%;

[0068] Carbon fiber: 14.5%;

[0069] Fill the obtained mixed raw material into the barrel, set the temperature of the fourth section of the barrel, inject the mixed raw material into the mold through a nozzle at 330°C, the mold temperature is 150°C, and cool and shape the mold after filling to obtain a polyphenylene sulfide resin battery cover plate.

[0070] Among them, the temperature setting of the four sections of the barrel is as follows: the first section: 300°C; the second section: 320°C; the third section: 330°C; the fourth section: 330°C;

[0071] The injection molding pressure is 150MPa, and the speed is 150mm / s.

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Abstract

The invention provides conductive polyphenylene sulfide resin. The conductive polyphenylene sulfide resin is prepared from components in percentage by mass as follows: 25%-60% of polyphenylene sulfide, 15%-40% of silicate glass fibers, 5%-40% of calcium carbonate, 0.1%-1% of carbon black and 1%-15% of carbon fibers. According to the performance requirement of a power battery, a formula of the polyphenylene sulfide resin is improved, and the polyphenylene sulfide resin with good contact resistance value stability is obtained; the power battery prepared from the conductive polyphenylene sulfideresin as a cover plate has stable power supply performance and good mechanical performance and heat resistance; besides, by means of technical improvement, the defect rate of electric performance is controlled within 0.1% from 20%, so that production cost is reduced, product quality is improved, and the high-standard requirement of the power battery for a new energy automobile is met. The invention further provides a preparation method of the conductive polyphenylene sulfide resin and the power battery.

Description

technical field [0001] The invention belongs to the technical field of new energy automobile batteries, and in particular relates to a conductive polyphenylene sulfide resin, a preparation method thereof and a power battery. Background technique [0002] With the worsening of global environmental problems, new energy vehicles, which replace traditional gasoline fuel power sources, are attracting more and more attention. [0003] The power source of new energy vehicles is generally power batteries, mainly lithium-ion batteries and ternary batteries. However, the power batteries currently used are greatly affected by the environment. After a period of time or in a high temperature environment, the resistance value of the power battery will change. Larger, with a variation range of 2 to 10000Ω, resulting in abnormal fluctuations caused by current, which cannot ensure the performance of the power battery, such as battery life and service life. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L81/02C08K13/04C08K7/14C08K3/26C08K3/04C08K7/06
CPCC08K3/04C08K3/26C08K7/06C08K7/14C08K13/04C08K2003/265C08K2201/001C08L2201/02C08L2201/08C08L2203/20C08L81/02
Inventor 李新宏陈圣
Owner 池州市骏智机电科技有限公司
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