US 12,266,792 B2
Negative electrode for lithium secondary battery and lithium secondary battery including the same
Hyo Mi Kim, Daejeon (KR); and Yong Seok Lee, Daejeon (KR)
Assigned to SK On Co., Ltd., Seoul (KR)
Filed by SK On Co., Ltd., Seoul (KR)
Filed on Oct. 18, 2023, as Appl. No. 18/489,086.
Application 18/489,086 is a continuation of application No. 17/361,427, filed on Jun. 29, 2021.
Claims priority of application No. 10-2020-0079922 (KR), filed on Jun. 30, 2020.
Prior Publication US 2024/0047661 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/38 (2006.01); H01M 4/58 (2010.01); H01M 4/583 (2010.01); H01M 4/587 (2010.01); H01M 4/62 (2006.01); H01M 4/64 (2006.01); H01M 10/02 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/386 (2013.01) [H01M 4/583 (2013.01); H01M 4/587 (2013.01); H01M 4/625 (2013.01); H01M 4/64 (2013.01); H01M 10/02 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)] 11 Claims
 
1. A negative electrode for a lithium secondary battery comprising:
a current collector;
a first negative electrode active material layer disposed on the current collector and including a silicon-based active material, a first graphite-based active material comprising artificial graphite, and a conductive material; and
a second negative electrode active material layer disposed on the first negative electrode active material layer and including a second graphite-based active material,
wherein the first graphite-based active material has a carbon coating layer on at least a part of a surface.