High safety battery electrolyte solution

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...

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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.

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