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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.:

US 12725783 B1

PDFFull Text
Date of Patent:
Sep. 01, 2026

Filed:

Mar. 31, 2022

Cathode active material for lithium secondary battery and lithium secondary battery including the same

Applicant:

SK on Co., Ltd., Seoul, KR;

Inventors:

Yeong Bin Yoo, Daejeon, KR;

Ji Hoon Choi, Daejeon, KR;

Kook Hyun Han, Daejeon, KR;

Hee Jun Kweon, Daejeon, KR;

Assignee:

SK On Co., Ltd., Seoul, KR;

Attorney:

The Webb Law Firm

Primary Examiner:

Zhongqing Wei

Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 4/1391 (2010.01); H01M 4/36 (2006.01); H01M 4/485 (2010.01); H01M 10/054 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 4/1391 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 10/054 (2013.01); H01M 2004/028 (2013.01); H01M 2220/20 (2013.01);
Abstract

A cathode active material for a lithium secondary battery includes a lithium-transition metal composite oxide particle having a single particle shape, and a first coating layer formed on a surface of the lithium-transition metal composite oxide particle. The first coating layer includes a La—Zr—O compound. Life-span and capacity properties are improved by a combination of the lithium-transition metal composite oxide particle having the single particle shape and the first coating layer formed thereon.

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Yoo, Yeong. (2026). Cathode active material for lithium secondary battery and lithium secondary battery including the same (U.S. Patent No. 12725783). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12725783

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