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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 12431497 B1

PDFFull Text
Date of Patent:
Sep. 30, 2025

Filed:

Sep. 29, 2020

Globular carbon-based anode active material, method for manufacturing same, and anode and lithium secondary battery comprising same

Applicant:

Lg Energy Solution, Ltd., Seoul, KR;

Inventors:

Hyun-Chul Kim, Daejeon, KR;

Sang-Wook Woo, Daejeon, KR;

Chang-Ju Lee, Daejeon, KR;

Assignee:

LG ENERGY SOLUTION, LTD., Seoul, KR;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Barbara L Gilliam

Assistant Examiner:

Jordan E Berresford

Int. Cl.
CPC ...
H01M 4/587 (2010.01); C01B 32/21 (2017.01); H01M 4/02 (2006.01); H01M 4/04 (2006.01); H01M 4/133 (2010.01); H01M 4/1393 (2010.01);
U.S. Cl.
CPC ...
H01M 4/587 (2013.01); C01B 32/21 (2017.08); H01M 4/0471 (2013.01); H01M 4/133 (2013.01); H01M 4/1393 (2013.01); C01P 2004/32 (2013.01); C01P 2004/61 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract

A method for preparing a spheronized carbonaceous negative electrode active material, including the steps of: mixing scaly graphite, solid pitch and liquid pitch to form a mixture, and spheronizing the mixture to prepare spheronized granulated particles; firing the spheronized granulated particles; carrying out carbon coating of the fired spheronized granulated particles to form carbon-coated spheronized granulated particles; heat treating the carbon-coated spheronized granulated particles; and disintegrating the heat treated carbon-coated spheronized granulated particles.

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Kim, Hyun-Chul. (2025). Globular carbon-based anode active material, method for manufacturing same, and anode and lithium secondary battery comprising same (U.S. Patent No. 12431497). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12431497

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

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