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. 20, 2010
Filed:
Mar. 18, 2005
Applicants:
Koji Abe, Yamaguchi, JP;
Yoshihiro Ushigoe, Yamaguchi, JP;
Akikazu Ito, Yamaguchi, JP;
Inventors:
Assignee:
UBE Industries, Ltd., Ube-Shi, Yamaguchi, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01M 6/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a nonaqueous electrolytic solution useful for producing a lithium secondary battery having excellent cycle characteristics. Specifically disclosed is a nonaqueous electrolytic solution for lithium secondary batteries obtained by dissolving an electrolyte salt in a nonaqueous solvent which is characterized by containing 0.1 to 10 wt. % of a tert-alkylbenzene compound and also containing 0.001-0.5 wt. % of a benzene compound, wherein a hydrocarbon group having 1-4 carbon atoms is bonded to a benzene ring via the tertiary carbon atom, relative to the tert-alkylbenzene compound.