Lithium battery electrolyte with wettability improved, and lithium battery

A lithium battery and electrolyte technology, applied in the field of electrochemistry, can solve the problems of battery performance damage, long industrialization process, etc., and achieve the effect of improved wettability and good high-temperature output characteristics
CN106920991AInactive Publication Date: 2017-07-04ZHANGJIAGANG GUOTAI HUARONG NEW CHEM MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ZHANGJIAGANG GUOTAI HUARONG NEW CHEM MATERIALS CO LTD
Publication Date
2017-07-04
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a lithium battery electrolyte with wettability improved. The lithium battery electrolyte comprises a lithium salt, an organic solvent and an additive, wherein the additive comprises an additive A; the additive A is selected from one or a combination of the components as the structural formula as follows: a formula is as shown in the specification, wherein R1, R2, R3, R4 and R5 are one of hydrogen, hydroxyl group, alkyl group, alkoxyl group, alkenyl group, ketone group, phenyl group, phenoxyl group, fluoroalkyl group, fluoroalkoxy group, fluoroalkenyl group, fluoroketone group, fluorobenzene group and fluorophenoxyl group independently, wherein fluoro refers to partial substitution or complete substitution. By adding the additive A to the lithium battery electrolyte, the wettability of the electrolyte is obviously improved; and the lithium battery adopting the electrolyte has high high-temperature output characteristic, rate capability and cycling performance.
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Description

technical field

[0001] The invention belongs to the technical field of electrochemistry, and in particular relates to a lithium battery electrolyte and a lithium battery with improved wettability. Background technique

[0002] Lithium-ion batteries are more and more widely used in people's production and life, which makes its safety issue become the focus of attention. There are two ways to solve the safety problem of lithium-ion batteries in terms of electrolytes. Way 1: All solid-state lithium-ion battery electrolyte Research is still in the research and development stage, immature, and the road to industrialization is still very long; Approach 2: Improve the electrolyte system of the existing lithium-ion battery, that is, use flame-retardant or even non-flammable solvents (fluorine-containing solvents) or flame-retardant It is one of the most promising ways to solve the flammability problem of the electrolyte of lithium-ion batteries at present. They have little damage to...

Claims

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