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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 12671076 B1

PDFFull Text
Date of Patent:
Jun. 30, 2026

Filed:

Jun. 07, 2019

Method for preparing positive electrode active material for secondary battery

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Eun Hee Lee, Daejeon, KR;

Seong Bae Kim, Daejeon, KR;

Young Su Park, Daejeon, KR;

Yi Rang Lim, Daejeon, KR;

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorney:

Lerner David LLP

Primary Examiner:

Barbara L Gilliam

Assistant Examiner:

Angela J Martin

Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/04 (2006.01); H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/1391 (2010.01); H01M 4/1395 (2010.01); H01M 4/36 (2006.01); H01M 4/50 (2010.01); H01M 4/505 (2010.01); H01M 4/52 (2010.01); H01M 4/525 (2010.01); H01M 10/05 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/131 (2013.01); H01M 4/0471 (2013.01); H01M 4/134 (2013.01); H01M 4/1391 (2013.01); H01M 4/1395 (2013.01); H01M 4/364 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract

A method for preparing a positive electrode active material for a secondary battery includes the steps of: providing a positive electrode active material precursor including a core portion and a shell portion, wherein the core portion contains nickel (Ni), cobalt (Co), and manganese (Mn), and the shell portion contains cobalt (Co) and surrounds the core portion; and forming a lithium composite transition metal oxide in a single particle form by mixing the positive electrode active material precursor with a lithium raw material to obtain a mixture, and firing the mixture at a temperature of 970° C. or more.

Find Patent Forward Citations

Lee, Eun. (2026). Method for preparing positive electrode active material for secondary battery (U.S. Patent No. 12671076). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12671076

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

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