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. 04, 2020
Filed:
May. 15, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka-shi, Osaka, JP;
Inventors:
Atsushi Ogata, Osaka, JP;
Takao Kokubu, Osaka, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/36 (2006.01); C01B 35/12 (2006.01); C01G 53/00 (2006.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01B 35/121 (2013.01); C01G 53/50 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2004/50 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract
A positive electrode active material for a secondary battery contains second particles which are produced by aggregation of primary particles of a lithium transition metal oxide containing Ni and W, and a boron compound present inside and on the surfaces of the secondary particles.