logo

For the Inventor, By the Inventor

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 12451481 B1

PDFFull Text
Date of Patent:
Oct. 21, 2025

Filed:

Nov. 27, 2020

Method of producing positive electrode active material for lithium secondary battery and positive electrode active material for lithium secondary battery produced thereby

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

No Woo Kwak, Daejeon, KR;

Hyuck Lee, Daejeon, KR;

Duck Gyun Mok, Daejeon, KR;

Min Hee Son, Daejeon, KR;

Assignee:

LG Chem, Ltd., Seoul, KR;

Attorney:

Lerner David LLP

Primary Examiner:

Gregg Cantelmo

Int. Cl.
CPC ...
H01M 4/36 (2006.01); C01G 53/50 (2025.01); H01M 4/02 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); C01G 53/50 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/62 (2013.01); H01M 10/0525 (2013.01); C01P 2002/52 (2013.01); C01P 2004/03 (2013.01); C01P 2004/82 (2013.01); C01P 2006/40 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode active material contains a lithium transition metal oxide in the form of a secondary particle in which primary particles are aggregated, wherein a zirconium-containing coating film is formed on the surface of the lithium transition metal oxide secondary particle and at the interface between the primary particles present inside the secondary particle. A method of making the positive electrode active material is also provided.

Find Patent Forward Citations

Kwak, No. (2025). Method of producing positive electrode active material for lithium secondary battery and positive electrode active material for lithium secondary battery produced thereby (U.S. Patent No. 12451481). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12451481

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

Loading…