Shenzhen Capchem Technology Co., Ltd.

Huizhou Capchem Chemicals Co., Ltd

Dejun Xiong

Qiao Shi

Shiguang Hu

Jiaojiao Yun

Ling Zhong

Xiaoxia Xiang

Zhongtian Zheng

Qun Chen

Zhaowei Cao

Jiahao Huang

Kai Tu

Xuejun Chen

To solve the problem that the existing non-aqueous electrolyte for a lithium ion battery cannot ensure the high-temperature storage performance and cycle performance at the same time, the invention provides a non-aqueous electrolyte for a lithium ion battery, comprising a solvent, a lithium salt and a compound represented by structural formula 1 and/or structural formula 2: Meanwhile, the invention also discloses a lithium ion battery comprising the non-aqueous electrolyte for a lithium ion battery. The non-aqueous electrolyte provided by the invention can effectively improve the cycle performance and high-temperature storage performance of lithium ion batteries.

Non-aqueous electrolyte for a lithium ion battery and lithium ion battery

Provided is a non-aqueous electrolyte for a lithium ion battery, comprising one or more compounds A represented by structure 1, wherein Ris independently selected from a halogen atom or a group containing 1-5 carbon atoms, and Ris independently selected from a group containing 0-5 carbon atoms; Xis independently selected from a phosphorus oxygen group or a phosphorus atom; Xis independently selected from an oxygen atom, a carboxylate group, a sulfonate group or a carbonate group. The non-aqueous electrolyte can improve the high-temperature cycle performance of the battery and reduce the impedance. The lithium ion battery prepared with the non-aqueous electrolyte possesses good high-temperature resistant properties and good cycle performance, which can effectively avoid the instability of the lithium ion battery under high temperature conditions and improve the high and low temperature cycle performance of the lithium ion battery.

Non-aqueous electrolyte including caged bicyclic phosphate, and lithium ion battery including the same

Provided is a non-aqueous electrolyte, comprising a solvent, a lithium salt, an additive A and an additive B, the additive A is selected from compound represented by structural formula 1, and the additive B is selected from one or more of compounds represented by structural formula 2 and structural formula 3:

Non-aqueous electrolyte and lithium ion battery

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Guangdong, China

Dejun Xiong