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:
Feb. 24, 2015
Filed:
Dec. 11, 2012
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/00 (2006.01); H01M 4/525 (2010.01); H01M 4/505 (2010.01); H01M 4/485 (2010.01); C01G 23/00 (2006.01); C01G 45/12 (2006.01); C01G 49/00 (2006.01); H01M 4/131 (2010.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); H01M 4/505 (2013.01); H01M 4/485 (2013.01); C01G 23/005 (2013.01); C01G 45/1292 (2013.01); C01G 49/0027 (2013.01); H01M 4/131 (2013.01); Y02E 60/122 (2013.01); C01P 2002/54 (2013.01); C01P 2002/72 (2013.01); C01P 2004/61 (2013.01); C01P 2006/11 (2013.01);
Abstract
A negative electrode active material for lithium ion secondary batteries of the present invention includes a lithium-titanium composite oxide that has a composition represented by LiTiFeO(where x satisfies 0<x≦0.3) or LiTiMnO(where y satisfies 0<y≦0.3) and that has an average particle diameter of primary particles which is not less than 1 μm.