The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 26, 2022
Filed:
Dec. 28, 2017
Shenzhen Capchem Technology Co., Ltd., Guangdong, CN;
Qiao Shi, Guangdong, CN;
Shiguang Hu, Guangdong, CN;
Zhaohui Deng, Guangdong, CN;
Hao Zhang, Guangdong, CN;
Chunhua Liu, Guangdong, CN;
SHENZHEN CAPCHEM TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
Provided is a non-aqueous electrolyte for lithium ion battery, comprising a compound A represented by structural formula I and a compound B represented by structural formula II: Wherein, in formula I, Ris selected from alkylene having 1-5 carbon atoms or fluorine substituted alkylene having 1-5 carbon atoms; Ris selected from anyone of alkylene having 1-5 carbon atoms, fluorine substituted alkylene having 1-5 carbon atoms or carbonyl; In formula II, R, R, R, R, Rand Rare each independently selected from hydrogen, fluorine atom or a group containing 1-5 carbon atoms. The compound A and compound B of the non-aqueous electrolyte can form a passivation film formed by reduction, decomposition and combination reactions on the surface of negative electrode material of lithium-ion battery, thereby improving thermal stability of the passivation film and high-temperature cycle and storage performance of the battery.