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.:
Date of Patent:
Oct. 28, 2025
Filed:
Jan. 27, 2021
Applicant:
Lg Energy Solution, Ltd., Seoul, KR;
Inventors:
Jung Hyun Choi, Daejeon, KR;
Hang Ah Park, Daejeon, KR;
Sun Young Shin, Daejeon, KR;
Je Young Kim, Daejeon, KR;
Yong Ju Lee, Daejeon, KR;
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/38 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/587 (2010.01); H01M 4/60 (2006.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01); H01M 4/134 (2010.01);
U.S. Cl.
CPC ...
H01M 4/386 (2013.01); H01M 4/0404 (2013.01); H01M 4/366 (2013.01); H01M 4/587 (2013.01); H01M 4/602 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 4/134 (2013.01); Y02E 60/10 (2013.01);
Abstract
Provided is a negative electrode active material which includes: a silicon-based core; and an outer coating layer formed on the silicon-based core and including polyimide, wherein the polyimide comprises a fluorine-containing imide unit. The outer coating layer may be included in an amount of more than 0 wt % and 4.5 wt % or less in the negative electrode active material.