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:
Mar. 19, 2013
Filed:
Aug. 08, 2011
Asami Ohashi, Tokyo, JP;
Yoshiyuki Ishii, Tokyo, JP;
Hiroaki Okamoto, Yamaguchi, JP;
Yuki Morita, Yamaguchi, JP;
Asami Ohashi, Tokyo, JP;
Yoshiyuki Ishii, Tokyo, JP;
Hiroaki Okamoto, Yamaguchi, JP;
Yuki Morita, Yamaguchi, JP;
Asahi Kasei E-Materials Corporation, Tokyo, JP;
Yamaguchi University, Yamaguchi, JP;
Abstract
The electrolyte solution for a lithium ion secondary battery according to the present invention contains a nonaqueous solvent, a lithium salt and a compound represented by the general formula (Z) shown below. Thereby, a lithium ion secondary battery having high battery characteristics and simultaneously achieving a high safety as well can be provided.R—SO—Ar—O—R  (Z)wherein Ardenotes a substituted or nonsubstituted divalent aromatic group having 5 to 30 atoms of the nucleus(es); Rdenotes a saturated or unsaturated monovalent hydrocarbon group having 1 to 20 carbon atoms; and R denotes a saturated or unsaturated monovalent hydrocarbon group having a perfluoroalkyl group and having 2 to 22 carbon atoms.