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. 01, 2011
Filed:
Jun. 26, 2006
Applicants:
Hitoshi Matsumoto, Kagawa, JP;
Hideharu Satoh, Ibaraki, JP;
Inventors:
Hitoshi Matsumoto, Kagawa, JP;
Hideharu Satoh, Ibaraki, JP;
Assignees:
Mitsubishi Chemical Corporation, Tokyo, JP;
Tokai Carbon Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2010.01);
U.S. Cl.
CPC ...
Abstract
To provide a nonaqueous secondary battery ensuring that a charge-discharge irreversible capacity at an initial cycle is sufficiently small even when an active material layer comprising a negative electrode active material on a current collector is increased in a density for obtaining a high capacity. This object is attained by a graphite composite particle for a nonaqueous secondary battery, which satisfies the requirements (1) and (2):