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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 12793974 B1

PDFFull Text
Date of Patent:
Nov. 10, 2026

Filed:

Dec. 07, 2021

Positive electrode active material for lithium secondary battery and lithium secondary battery comprising the same

Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Eun-Sol Lho, Daejeon, KR;

Joong-Yeop Do, Daejeon, KR;

Kang-Joon Park, Daejeon, KR;

Gi-Beom Han, Daejeon, KR;

Min Kwak, Daejeon, KR;

Sang-Min Park, Daejeon, KR;

Dae-Jin Lee, Daejeon, KR;

Sang-Wook Lee, Daejeon, KR;

Wang-Mo Jung, Daejeon, KR;

Assignee:

LG Energy Solution, Ltd., Seoul, KR;

Attorney:

Lerner David LLP

Primary Examiner:

Tiffany Legette

Assistant Examiner:

Monique M Wills

Int. Cl.
CPC ...
H01M 4/00 (2006.01); C01G 53/506 (2025.01); H01M 4/131 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/506 (2025.01); H01M 4/131 (2013.01); H01M 10/052 (2013.01); C01P 2002/50 (2013.01); C01P 2002/60 (2013.01); C01P 2004/50 (2013.01); C01P 2004/61 (2013.01); C01P 2004/62 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided is a positive electrode active material comprising at least one secondary particle comprising an agglomerate of a primary macro particle, a method for preparing the same and a lithium secondary battery comprising the same. By the simultaneous use of the secondary particle comprising a primary macro particle and a monolith, it is possible to provide a nickel-based positive electrode active material with reduced particle cracking in the positive electrode active material during a rolling process and improved charge/discharge cycling characteristics.

Find Patent Forward Citations

Quick Actions:

Lho, Eun-Sol. (2026). Positive electrode active material for lithium secondary battery and lithium secondary battery comprising the same (U.S. Patent No. 12793974). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12793974

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