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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 12665185 B1

PDFFull Text
Date of Patent:
Jun. 23, 2026

Filed:

Aug. 10, 2022

Positive active material for rechargeable lithium battery, preparing method thereof and rechargeable lithium battery including the same

Applicant:

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

Inventors:

Jungsue Jang, Yongin-si, KR;

Donghyun Kil, Yongin-si, KR;

Jinyoung Kim, Yongin-si, KR;

Jaeha Shim, Yongin-si, KR;

Assignee:

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

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Niki Bakhtiari

Assistant Examiner:

Madison Leigh Kyle

Int. Cl.
CPC ...
H01M 4/36 (2006.01); C01G 53/50 (2025.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); C01G 53/50 (2013.01); H01M 4/0471 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); C01P 2002/50 (2013.01); C01P 2004/03 (2013.01); C01P 2004/61 (2013.01); C01P 2004/84 (2013.01); C01P 2006/40 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive active material for a rechargeable lithium battery, a preparing method thereof, and a rechargeable lithium battery including the same are provided. The positive active material for a rechargeable lithium battery includes a first positive active material including a first lithium nickel-based composite oxide and including secondary particles formed by aggregation of a plurality of primary particles and a cobalt coating portion on the surface of the secondary particles; and a second positive active material including a second lithium nickel-based composite oxide and including individual particles and a cobalt coating portion on the surface of the individual particles, wherein the second positive active material has an uneven surface having concavo-convex features and an even surface that is substantially flat.

Find Patent Forward Citations

Jang, Jungsue. (2026). Positive active material for rechargeable lithium battery, preparing method thereof and rechargeable lithium battery including the same (U.S. Patent No. 12665185). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12665185

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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