Flame-retardant coating and lithium ion battery employing same

A lithium-ion battery and flame-retardant coating technology, applied in the field of lithium-ion batteries, can solve the problems of poor flame-retardant effect of organic flame-retardant additives, low organic reaction rate, and difficulty in large-scale promotion, and achieve low price and low equipment wear , little effect on electrochemical performance

Inactive Publication Date: 2016-07-06
TIANJIN ENERGIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual thermal runaway reaction process, due to the low organic reaction rate, before the flame retardant additive reacts to form a substance with a flame retardant effect, the thermal runaway reaction has spread on a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A flame-retardant coating, the quality of each raw material component is as follows: 0.45 kg of boehmite, 0.45 kg of water, and 0.10 kg of acrylate.

Embodiment 2

[0044] A flame-retardant coating, the quality of each raw material component is as follows: 0.35kg of aluminum hydroxide, 0.55kg of water, 0.03kg of sodium carboxymethyl cellulose, 0.03kg of acrylate, and 0.04kg of styrene-butadiene rubber SBR.

Embodiment 3

[0046] A flame-retardant coating, the quality of each raw material component is as follows: 0.20kg of pseudo-boehmite, 0.75kg of water, 0.02kg of sodium carboxymethyl cellulose, and 0.03kg of styrene-butadiene rubber.

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PUM

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Abstract

The invention provides a flame-retardant coating, and belongs to the technical field of lithium ion batteries. The flame-retardant coating is prepared from the following raw materials in percentage by mass: 15 to 50 percent of a flame-retardant additive, 45 to 80 percent of a solvent and 0.5 to 12 percent of an adhesive. The invention also provides a lithium ion battery employing the flame-retardant coating and a preparation method for the lithium ion battery. The flame-retardant coating has flame-retardant, heat insulation and insulation functions, large-scale thermal runaway of the lithium ion battery can be effectively prevented and inhibited in both chemical and physical manners, and safety of the lithium ion battery is improved.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to a flame retardant coating and a lithium ion battery using the flame retardant coating. Background technique [0002] Due to the advantages of high energy density, high working voltage, wide applicable temperature range, long cycle life, and no memory effect, lithium-ion batteries have been widely used in military, medical, electric work, 3C, energy storage, and electric vehicles. Wide range of applications. However, with the occurrence of safety accidents such as fire and explosion in the application of lithium-ion batteries in these fields, the problem of thermal runaway of lithium-ion batteries under extreme use conditions has become increasingly prominent, and has become an important problem in this field that needs to be solved urgently. [0003] Adding safety coatings or organic flame retardant additives to lithium-ion batteries is one of the methods to improv...

Claims

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Application Information

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IPC IPC(8): C09D5/18C09D4/02C09D7/12C09D4/06C09D109/06C09D175/04C09D127/16H01M10/0525H01M10/058H01M10/42
CPCC08K3/22C08K3/26C08K2003/2244C08K2003/267C08K2201/014C09D4/00C09D4/06C09D5/18C09D109/06C09D127/16C09D175/04C09D7/61H01M10/0525H01M10/058H01M10/4235C08L1/286C08K2003/2227C08K2003/265C08L39/06C08L27/16Y02E60/10Y02P70/50
Inventor 刘静高秀玲王立仕王驰伟
Owner TIANJIN ENERGIES
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