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:
Apr. 13, 2021
Filed:
Feb. 18, 2014
Nippon Shokubai Co., Ltd., Osaka, JP;
Hiroyuki Mizuno, Osaka, JP;
Kazuhisa Hirata, Osaka, JP;
Takeo Kawase, Osaka, JP;
Izuho Okada, Osaka, JP;
Hiromoto Katsuyama, Osaka, JP;
Miwako Tominaga, Osaka, JP;
Masayuki Okajima, Osaka, JP;
NIPPON SHOKUBAI CO., LTD., Osaka, JP;
Abstract
The objective of the present invention is to provide an electrolyte solution of which electrolyte salt concentration is high and by which cycle characteristics hardly deteriorate and battery lifetime can be extended, and a lithium ion secondary battery which contains the above electrolyte solution. The electrolyte solution of the present invention comprises an electrolyte salt and a solvent, wherein a concentration of the electrolyte salt is more than 1.1 mol/L, the electrolyte salt contains a compound represented by the following formula (1): (XSO) (FSO)NLi (1) (wherein X is a fluorine atom, a Calkyl group or a Cfluoroalkyl group), and the solvent contains a cyclic carbonate.