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:
Jul. 15, 2025
Filed:
Jan. 06, 2022
Applicant:
SK on Co., Ltd., Seoul, KR;
Inventors:
Sang Bok Kim, Daejeon, KR;
Tae Kyoung Lee, Daejeon, KR;
Mi Jung Noh, Daejeon, KR;
Ji Hoon Choi, Daejeon, KR;
Dong Wook Ha, Daejeon, KR;
Assignee:
SK On Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); C01G 53/50 (2025.01); C01G 53/82 (2025.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/36 (2006.01); H01M 4/505 (2010.01); H01M 10/052 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/50 (2013.01); C01G 53/82 (2025.01); H01M 4/0416 (2013.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/505 (2013.01); H01M 10/052 (2013.01); H01M 10/0525 (2013.01); C01P 2004/80 (2013.01); H01M 2004/028 (2013.01); Y02E 60/10 (2013.01);
Abstract
A cathode active material for a lithium secondary battery is provided. According to embodiments of the present invention, the cathode active material includes a lithium-transition metal composite oxide particle including a plurality of primary particles. The lithium-transition metal composite oxide particle has a lithium-boron-containing portion formed between the primary particles. Thereby, it is possible to improve life-span properties and capacity properties by removing residual lithium.