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:
Sep. 22, 2020
Filed:
Jul. 31, 2018
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Tomoyuki Okuyama, Chino, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 4/64 (2006.01); H01M 10/04 (2006.01); H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 10/0562 (2010.01); H01M 4/38 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 4/364 (2013.01); H01M 4/381 (2013.01); H01M 4/382 (2013.01); H01M 4/525 (2013.01); H01M 4/64 (2013.01); H01M 10/0431 (2013.01); H01M 10/0562 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0071 (2013.01);
Abstract
A composite body includes a positive electrode active material composed of a lithium composite metal oxide containing Li and at least one type of transition metal, and an electrolyte, wherein the positive electrode active material is present on one surface of the composite body, the one type of transition metal is Co, and the molar ratio of Co (cobalt) in the positive electrode active material (lithium cobalt oxide) present on the one surface is equal to or more than the molar ratio of O (oxygen).