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Lithium ion battery provided with insulating thermal conductive film

A lithium-ion battery, thermally conductive film technology, applied in battery pack parts, battery box/jacket, battery box/cover material, etc., can solve problems such as the inability to fundamentally solve the safety problem of lithium-ion batteries, and improve safety performance effect

Inactive Publication Date: 2018-03-23
SUZHOU GREEN POWER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of various factors, the above methods cannot fundamentally solve the safety problem of lithium-ion batteries.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The specific implementation of the present invention will be further described below in conjunction with the examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0019] The technical scheme of concrete implementation of the present invention is:

[0020] A lithium-ion battery with an insulating and heat-conducting film, comprising a battery body, the surface of the battery body is coated with an insulating and heat-conducting film, and the insulating and heat-conducting film is composed of the following components in parts by weight:

[0021] 2.6 parts sodium alpha-olefin sulfonate,

[0022] 2.7 parts succinate,

[0023] 1.8 parts polyacrylate,

[0024] 3.5 parts of hexabromocyclododecane,

[0025] 3.3 parts sodium sulfamate,

[0026] 4.2 parts hydroxyethylcellulose,

[0027] 1.8 parts dipentaerythritol,

[0028] 4.7 parts cobalt...

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PUM

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Abstract

The invention discloses a lithium ion battery provided with an insulating thermal conductive film. The lithium ion battery comprises a battery body; the insulating thermal conductive film covers the surface of the battery body; the insulating thermal conductive film is prepared from the following components: sodium-alpha olefin sulfonate, succinate, polyacrylate, hexabromocyclododecane, sodium sulfamate, hydroxyethyl cellulose, dipentaerythritol, cobalt naphthenate, isodecyl benzoate and diethylhexyl carbonate. According to the lithium ion battery provided with the insulating thermal conductive film, the insulating thermal conductive film covers the surface of the battery body and has dual attributes of insulation and heat conduction, so that the safety performance of the battery is effectively improved.

Description

technical field [0001] The invention relates to a lithium ion battery with an insulating and heat-conducting thin film. Background technique [0002] Lithium-ion batteries have many advantages such as high energy density, high output power, long charge and discharge life, no pollution, wide operating temperature range and small self-discharge. As a new type of high-energy chemical power source, it has encountered the greatest challenge in the process of solving human environmental pollution and energy crisis, that is, safety issues. Lithium-ion batteries will cause internal short circuit or overcharge and other abuse conditions due to overcurrent and internal dendrites, resulting in internal heat accumulation. When the heat accumulates to a certain extent, it will cause the electrolyte, positive electrode and other internal materials to have an exothermic chain reaction, eventually leading to thermal runaway of the lithium battery. [0003] At present, the way to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M50/116
CPCH01M50/116Y02E60/10
Inventor 王海波
Owner SUZHOU GREEN POWER TECH CO LTD