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:
Apr. 14, 2020
Filed:
Mar. 30, 2017
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Chi Ho Jo, Daejeon, KR;
Sung Bin Park, Daejeon, KR;
Young Uk Park, Daejeon, KR;
Bo Ram Lee, Daejeon, KR;
Hyuck Hur, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 10/0525 (2010.01); C01G 51/00 (2006.01); H01M 4/131 (2010.01); H01M 4/485 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 51/00 (2013.01); C01G 51/42 (2013.01); H01M 4/131 (2013.01); H01M 4/485 (2013.01); H01M 10/0525 (2013.01); C01P 2002/54 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract
Provided is a positive electrode active material including lithium transition metal oxide for a lithium secondary battery, in which the lithium transition metal oxide includes a dopant diffusing from the surface of the lithium transition metal oxide particle, and the dopant is distributed with a concentration gradient from the center of the particle toward the surface thereof.