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:
Sep. 30, 2025
Filed:
Mar. 29, 2024
Applicant:
SK on Co., Ltd., Seoul, KR;
Inventors:
Sang Bok Kim, Daejeon, KR;
Jik Soo Kim, Daejeon, KR;
Jeong Bae Yoon, Daejeon, KR;
Seung Ok Lee, Daejeon, KR;
Ji Hoon Choi, Daejeon, KR;
Assignee:
SK ON CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 4/04 (2006.01); H01M 4/38 (2006.01); H01M 4/525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 4/0471 (2013.01); H01M 4/382 (2013.01); H01M 2004/028 (2013.01); H01M 4/525 (2013.01);
Abstract
A cathode active material for a lithium secondary battery is provided. The cathode active material includes lithium-transition metal composite oxide particles having a crystallite size of 120 nm or less in a () plane direction measured through X-ray diffraction (XRD) analysis, and a ratio of the crystallite size of the lithium-transition metal composite oxide particle in the () plane direction to a crystallite size thereof in a () plane direction isor more.