High safety battery electrolyte solution

An electrolyte and battery technology, applied in the field of electrochemical energy storage, can solve problems such as combustion and explosion of organic solvents

Active Publication Date: 2014-10-29
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the lithium-ion battery is overcharged and discharged, short-circuited, and high-current for a long time, it emits a lot of heat, and such organic solvents are prone to combustion and explosion accidents.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] In a glove box protected by argon (moisture 6 , Stirring and dissolving to prepare an electrolyte with a concentration of 1.0 mol / L to obtain the high-safety lithium-ion battery electrolyte of the present invention.

Embodiment 2

[0129] Except that the amount of 1,1,2,2-tetrafluoroethyl iso-butyl ether is changed to 12 (wt.)%, the others are the same as in Example 1.

Embodiment 3

[0131] Except that the amount of 1,1,2,2-tetrafluoroethyl iso-butyl ether is changed to 14 (wt.)%, the others are the same as in Example 1.

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Abstract

The invention discloses a high safety battery electrolyte solution, which includes an electrolyte and a solvent. The solvent is a mixed solvent of carbonic ester and a fluoro-ether solvent. The electrolyte solution provided by the invention can significantly improve the safety performance of batteries, and effectively prevent electrolyte solution combustion or even explosion due to overheat of batteries.

Description

Technical field [0001] The present invention relates to the technical field of electrochemical energy storage. Specifically, the present invention provides a high-safety lithium ion battery electrolyte system. Background technique [0002] With the rapid development of the global economy, the collection and utilization of traditional fossil energy cannot meet the needs of modern economic development, and has brought a series of social and environmental problems. It has become a realistic and strategic problem that needs to be solved worldwide. Lithium-ion batteries, known as "energy", have become the preferred technology for the next generation of new energy due to their advantages of no memory effect, environmental friendliness, high working voltage and energy density, and long cycle life. In recent years, this field has received widespread attention from the world and has achieved great success. However, in the lithium-ion battery system, one of the essential components of orga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0569H01M10/0525
CPCH01M10/0525H01M10/0569H01M2300/0037Y02E60/10
Inventor 秦银平刘杨方燕群王德宇
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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