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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 12770861 B1

PDFFull Text
Date of Patent:
Oct. 20, 2026

Filed:

Nov. 26, 2021

Positive electrode active material for secondary battery, manufacturing method thereof, freestanding film comprising the same, dry electrode and secondary battery comprising dry electrode

Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Jeonggil Kim, Daejeon, KR;

Taegon Kim, Daejeon, KR;

Myeongsoo Kim, Daejeon, KR;

Assignee:

LG Energy Solution, Ltd., Seoul, KR;

Attorney:

Lerner David LLP

Primary Examiner:

Kendra Ly

Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/04 (2006.01); H01M 4/485 (2010.01); H01M 4/583 (2010.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/0404 (2013.01); H01M 4/485 (2013.01); H01M 4/583 (2013.01); H01M 4/623 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A positive electrode active material for secondary battery includes lithium transition metal oxide particles; an amorphous carbon-based coating layer formed in the form of a coating film on the surface of the lithium transition metal oxide particles; and a carbon nanotube coating layer formed on the amorphous carbon-based coating layer. A method for manufacturing the same and a freestanding film including the same are also provided. Further, a dry positive electrode; and a secondary battery including the dry positive electrode are also provided.

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Kim, Jeonggil. (2026). Positive electrode active material for secondary battery, manufacturing method thereof, freestanding film comprising the same, dry electrode and secondary battery comprising dry electrode (U.S. Patent No. 12770861). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12770861

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