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. 02, 2018
Filed:
Jun. 09, 2015
Applicant:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Inventors:
Assignee:
HITACHI CHEMICAL COMPANY, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/505 (2010.01); H01M 4/131 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/36 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract
A lithium ion battery includes: a negative electrode in which a state of charge at a potential to be 0.1 V with respect to a lithium potential is 60% or more; and a positive electrode containing a lithium-containing composite metal oxide, and a capacity ratio of the positive electrode and the negative electrode (negative electrode capacity/positive electrode capacity) is 1 or more and less than 1.2. In the lithium ion battery described above, the lithium-containing composite metal oxide contains layered lithium nickel manganese cobalt composite oxide (NMC) and spinel lithium manganese oxide (sp-Mn).