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:
Dec. 29, 2015
Filed:
Oct. 01, 2012
Applicants:
Jungmin Kim, Ibaraki, JP;
Kenji Shizuka, Ibaraki, JP;
Inventors:
Jungmin Kim, Ibaraki, JP;
Kenji Shizuka, Ibaraki, JP;
Assignee:
MITSUBISHI CHEMICAL CORPORATION, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); C01G 45/12 (2006.01); C01G 53/00 (2006.01); H01M 4/1391 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/0471 (2013.01); C01G 45/1228 (2013.01); C01G 45/1242 (2013.01); C01G 53/50 (2013.01); C01G 53/54 (2013.01); H01M 4/0419 (2013.01); H01M 4/1391 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/052 (2013.01); C01P 2002/32 (2013.01); C01P 2004/03 (2013.01); C01P 2006/12 (2013.01); C01P 2006/16 (2013.01); C01P 2006/17 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract
A lithium-transition metal compound powder for a positive-electrode material of lithium secondary batteries can include a lithium-transition metal compound that is capable of an insertion and elimination of lithium ions. The particles in the powder contain, in the inner part thereof, a compound that, when analyzed by an SEM-EDX method, has peaks derived from Group-16 elements belonging to the third or later periods of the periodic table and Group-5 to Group-7 elements belonging to the fifth and sixth periods of the periodic table.