Combustion-resisting electrolyte of lithium secondary cell and its lithium cell

A lithium secondary battery and electrolyte technology, applied in the field of electrochemical and chemical power supply products, can solve the problems of high freezing point, great impact on battery performance, low lithium salt solubility, etc., and achieve the effect of excellent flame retardant performance
CN101079505AInactive Publication Date: 2007-11-28WUHAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
WUHAN UNIV
Publication Date
2007-11-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a flame-proof electrolyte and its lithium battery for secondary lithium battery, which is characterized by the following: adopting one or more phosphosubester (such as methyl acid phosphate dimethyl ester, ethyl phosphate diethyl ester and its derivant) as pure solvent or solvent component; reducing the price of electrolyte with incombustibility, low toxicity and high conductivity; improving the combusting safety effectively.
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Description

technical field

[0001] The invention relates to a flame-retardant electrolyte solution for a lithium secondary battery. It specifically relates to an electrolytic solution using one or more than one phosphoric acid (sub)ester as a pure solvent or a solvent component, and belongs to the technical field of electrochemical and chemical power supply products. Background technique

[0002] With the rapid development of information technology and the increasing popularity of portable electronic devices, the demand for high specific energy batteries is increasing year by year. Lithium-ion batteries have significant advantages such as high voltage, low self-discharge rate, and high energy density, and are gradually replacing traditional batteries and expanding their application fields and market share.

[0003] However, the potential safety hazards of lithium-ion batteries have always been the primary concern of applications. At present, the electrolyte used in lithium batteries i...

Claims

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