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:
Jun. 14, 2022
Filed:
Dec. 30, 2016
Shenzhen Capchem Technology Co., Ltd., Guangdong, CN;
Qiao Shi, Guangdong, CN;
Muchong Lin, Guangdong, CN;
Shiguang Hu, Guangdong, CN;
Xionggui Lin, Guangdong, CN;
Jiaojiao Yun, Guangdong, CN;
Chang'an Zeng, Guangdong, CN;
SHENZHEN CAPCHEM TECHNOLOGY CO., LTD., Shenzhen, CN;
Abstract
A non-aqueous electrolyte for a lithium-ion battery and a lithium-ion battery. The non-aqueous electrolyte comprises unsaturated phosphate compounds and unsaturated cyclic carboxylic acid anhydride compounds. The unsaturated phosphate compounds have the structure illustrated in structural formula 4; structural formula 4: R, R, and Rare independently selected from hydrocarbon groups having 1-5 carbon atoms respectively, and at least one of R, R, and Ris an unsaturated hydrocarbon group containing double bonds or triple bonds; the unsaturated cyclic carboxylic acid anhydride compounds have the structure illustrated in structural formula 5; structural formula 5: Ris independently selected from vinylidene having 2-4 carbon atoms or fluoro-substituted vinylidene. By means of the synergistic effect of two compounds, the non-aqueous electrolyte has excellent high-temperature cycling performance and storage performance, and also has lower impedance and good low-temperature performance.