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:
Nov. 26, 2019
Filed:
Oct. 29, 2015
Applicant:
Iucf-hyu (Industry-university Cooperation Foundation Hanyang University), Seoul, KR;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/134 (2010.01); H01M 10/0525 (2010.01); C01G 53/00 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); H01M 4/131 (2010.01); H01M 10/30 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01G 53/006 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/134 (2013.01); H01M 4/38 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); C01P 2002/85 (2013.01); C01P 2002/88 (2013.01); C01P 2004/84 (2013.01); H01M 10/30 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01); Y02T 10/7011 (2013.01);
Abstract
Embodiments of the inventive concepts described herein relate to a positive electrode active material for lithium secondary battery, and more particularly, relate to a positive electrode active material for a lithium secondary battery having a new structure which includes a core portion having gradients of concentrations of nickel, manganese, and cobalt in a direction from a center to a surface and in which each of the concentration gradients of nickel, manganese, and cobalt has at least one vertex in the core portion.