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:
Mar. 03, 2026
Filed:
Oct. 25, 2021
Applicant:
Lg Energy Solution, Ltd., Seoul, KR;
Inventors:
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/04 (2006.01); H01M 4/02 (2006.01); H01M 4/1393 (2010.01); H01M 4/587 (2010.01); H01M 10/44 (2006.01);
U.S. Cl.
CPC ...
H01M 4/0452 (2013.01); H01M 4/1393 (2013.01); H01M 4/587 (2013.01); H01M 10/446 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
A method of preparing a negative electrode which includes preparing a negative electrode structure including expanded natural graphite, impregnating the negative electrode structure with a pre-lithiation solution to form an impregnated negative electrode structure, and pre-lithiating the impregnated negative electrode structure by electrochemically charging the impregnated negative electrode structure to 10% to 20% of charge capacity of the negative electrode structure.