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:
Dec. 17, 2024
Filed:
May. 25, 2021
Applicant:
Lg Energy Solution, Ltd., Seoul, KR;
Inventors:
Assignee:
LG ENERGY SOLUTION, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0585 (2010.01); H01M 4/131 (2010.01); H01M 4/134 (2010.01); H01M 4/139 (2010.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01); H01M 50/409 (2021.01); H01M 50/491 (2021.01); H01M 50/531 (2021.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0585 (2013.01); H01M 4/131 (2013.01); H01M 4/134 (2013.01); H01M 4/139 (2013.01); H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 50/409 (2021.01); H01M 50/491 (2021.01); H01M 50/531 (2021.01); H01M 2004/027 (2013.01); H01M 2300/0068 (2013.01); H01M 2300/0082 (2013.01); Y10T 29/49115 (2015.01);
Abstract
A method of preparing a lithium secondary battery is provided which may effectively perform pre-lithiation, wherein, a closed square band-shaped lithium foil having an opening formed at a center thereof is prepared during the preparation of the lithium secondary battery, and a negative electrode is disposed in the opening of the lithium foil, but pre-lithiation of the negative electrode may be performed without a separate pre-lithiation process by disposing the negative electrode and the lithium foil so as not to overlap with each other and disposing a negative electrode tab so as to be in contact with the lithium foil.