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:
Jan. 12, 2021
Filed:
Sep. 05, 2019
Applicant:
Toda Kogyo Corp., Hiroshima, JP;
Inventors:
Assignee:
TODA KOGYO CORP., Hiroshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/505 (2010.01); C01G 45/12 (2006.01); H01M 4/131 (2010.01); H01M 10/0525 (2010.01); C01G 41/00 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); C01G 45/1242 (2013.01); H01M 4/131 (2013.01); H01M 10/0525 (2013.01); C01G 41/00 (2013.01); C01G 45/1214 (2013.01); C01P 2002/32 (2013.01); C01P 2002/50 (2013.01); C01P 2002/54 (2013.01); C01P 2002/72 (2013.01); C01P 2002/76 (2013.01); C01P 2004/03 (2013.01); C01P 2004/41 (2013.01); C01P 2004/45 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01);
Abstract
Positive electrode active material particle powder includes: lithium manganese oxide particle powder having Li and Mn as main components and a cubic spinel structure with an Fd-3m space group. The lithium manganese oxide particle powder is composed of secondary particles, which are aggregates of primary particles, an average particle diameter (D50) of the secondary particles being from 4 μm to 20 μm, and at least 80% of the primary particles exposed on surfaces of the secondary particles each have a polyhedral shape having at least one plane that is adjacent to two planes.