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.

Date of Patent:
May. 20, 2025

Filed:

Nov. 09, 2023
Applicants:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Unist (Ulsan National Institute of Science and Technology), Ulsan, KR;

Inventors:

Kwanghwan Cho, Yongin-si, KR;

Moonsu Yoon, Ulsan, KR;

Jaephil Cho, Ulsan, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/525 (2010.01); C01G 53/50 (2025.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/505 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/50 (2013.01); H01M 4/04 (2013.01); H01M 4/505 (2013.01); H01M 10/0525 (2013.01); C01P 2002/72 (2013.01); C01P 2002/74 (2013.01); C01P 2004/03 (2013.01); C01P 2004/04 (2013.01); C01P 2004/24 (2013.01); C01P 2004/64 (2013.01); C01P 2004/80 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract

This application relates to a composite positive electrode active material for a lithium secondary battery. The composite positive electrode active material includes a nickel-based active material and a cobalt-boron compound-containing coating layer formed on a surface of the nickel-based active material. The application also relates to a method of preparation of the composite positive electrode active material. The application further relates to a lithium secondary battery including a positive electrode containing the composite positive electrode active material.


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