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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 12388077 B1

PDFFull Text
Date of Patent:
Aug. 12, 2025

Filed:

Jan. 04, 2023

Positive electrode active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery

Applicant:

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

Inventors:

Pilsang Yun, Yongin-si, KR;

Hyunbeom Kim, Yongin-si, KR;

Hanseul Lee, Yongin-si, KR;

Do-Yu Kim, Yongin-si, KR;

Assignee:

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

Attorney:

Womble Bond Dickinson (US) LLP

Primary Examiner:

Jane J Rhee

Int. Cl.
CPC ...
H01M 50/46 (2021.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); H01M 4/0471 (2013.01); H01M 4/525 (2013.01); H01M 4/62 (2013.01); H01M 10/0525 (2013.01); H01M 50/46 (2021.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A method of preparing a positive electrode active material for a rechargeable lithium battery is provided to include: mixing a first nickel-based composite hydroxide in a form of a secondary particle in which a plurality of primary particles are aggregated and at least a portion of the primary particles have a radially arranged structure, a second lithium nickel-based composite oxide having a monolith structure, a lithium raw material, and a boron raw material; and performing heat-treatment.

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Yun, Pilsang. (2025). Positive electrode active material for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery (U.S. Patent No. 12388077). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12388077

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