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:
Oct. 13, 2015
Filed:
Sep. 04, 2009
Applicants:
Hiroki Nagai, Nagoya, JP;
Satoshi Goto, Aichi-ken, JP;
Hidekazu Hiratsuka, Moriguchi, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); C01G 53/00 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 53/50 (2013.01); H01M 4/525 (2013.01); H01M 10/052 (2013.01); C01P 2002/52 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01); C01P 2006/40 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract
A positive electrode active material provided in the present invention is characterized in that it is substantially formed of a lithium nickel cobalt manganese composite oxide and that a molar content ratio (Ni/Ni) of bivalent nickel atoms (Ni) and trivalent nickel atoms (Ni) of nickel atoms constituting the composite oxide is 0.15≦(Ni/Ni)≦0.95.