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:
May. 19, 2026
Filed:
Dec. 18, 2024
Applicant:
Lg Energy Solution, Ltd., Seoul, KR;
Inventors:
Il Geun Oh, Daejeon, KR;
Song Taek Oh, Daejeon, KR;
Su Mi Yoon, Daejeon, KR;
Mi Ru Jo, Daejeon, KR;
Jie Hyun Seong, Daejeon, KR;
Min Soo Kim, Daejeon, KR;
Assignee:
LG Energy Solution, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/42 (2006.01); H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/525 (2010.01); H01M 4/587 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 10/42 (2013.01); H01M 4/364 (2013.01); H01M 4/386 (2013.01); H01M 4/525 (2013.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2010/4292 (2013.01);
Abstract
A lithium secondary battery having high energy density and excellent lifetime characteristics includes: (1) a positive electrode containing a positive electrode active material in a single particle form having a Dof 5.5 μm to 8 μm; (2) a negative electrode containing a first negative electrode active material having a Si—C composite; and (3) an electrolyte. The irreversible capacity per unit area of the negative electrode is smaller than an irreversible capacity per unit area of the positive electrode.