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:
May. 26, 2009
Filed:
Jul. 31, 2003
Applicants:
Koji Abe, Yamaguchi, JP;
Takashi Hattori, Yamaguchi, JP;
Takaaki Kuwata, Yamaguchi, JP;
Yasuo Matsumori, Yamaguchi, JP;
Inventors:
Koji Abe, Yamaguchi, JP;
Takashi Hattori, Yamaguchi, JP;
Takaaki Kuwata, Yamaguchi, JP;
Yasuo Matsumori, Yamaguchi, JP;
Assignee:
UBE Industries, Ltd., Ube-Shi, Yamaguchi, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lithium secondary battery comprising a positive electrode, a negative electrode of artificial graphite or natural graphite and a nonaqueous electrolytic solution having an electrolyte dissolved in a nonaqueous solvent, wherein 0.1 to 20 wt. % of a cyclohexylbenzene having a halogen atom bonded to a benzene ring thereof is contained in the nonaqueous electrolytic solution exhibits large electric capacity and excellent cycle performance.