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:
Dec. 20, 2022
Filed:
Sep. 16, 2021
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Ji Hye Kim, Daejeon, KR;
Byung Chun Park, Daejeon, KR;
So Ra Baek, Daejeon, KR;
Tae Gu Yoo, Daejeon, KR;
Wang Mo Jung, Daejeon, KR;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); C01B 25/45 (2006.01); C01G 53/00 (2006.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01); H01M 4/86 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01B 25/45 (2013.01); C01G 53/006 (2013.01); C01G 53/50 (2013.01); H01M 4/131 (2013.01); H01M 4/364 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 10/052 (2013.01); C01P 2002/50 (2013.01); C01P 2002/52 (2013.01); C01P 2004/54 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); H01M 2004/021 (2013.01); H01M 2004/8689 (2013.01); Y02E 60/10 (2013.01); Y02T 10/70 (2013.01);
Abstract
The present invention relates to a positive electrode active material for a lithium secondary battery which includes a lithium composite transition metal oxide including nickel (Ni), cobalt (Co), and manganese (Mn), wherein a portion of nickel (Ni) sites of the lithium composite transition metal oxide is substituted with tungsten (W), and an amount of a lithium tungsten oxide remaining on surfaces of lithium composite transition metal oxide particles is 1,000 ppm or less.