US 12,424,613 B2
Negative electrode for lithium secondary battery and method of manufacturing the same
Eun Jun Park, Daejeon (KR); Gwi Ok Park, Daejeon (KR); Hyo Shik Kil, Daejeon (KR); and In Ae Lee, Daejeon (KR)
Assigned to SK On Co., Ltd., Seoul (KR)
Filed by SK On Co., Ltd., Seoul (KR)
Filed on Jul. 12, 2024, as Appl. No. 18/770,656.
Application 18/770,656 is a continuation of application No. 18/338,348, filed on Jun. 21, 2023, granted, now 12,074,312.
Claims priority of application No. 10-2022-0076674 (KR), filed on Jun. 23, 2022.
Prior Publication US 2024/0363833 A1, Oct. 31, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/134 (2010.01); H01M 4/139 (2010.01); H01M 10/052 (2010.01); B82Y 30/00 (2011.01); H01M 4/02 (2006.01)
CPC H01M 4/134 (2013.01) [H01M 4/139 (2013.01); H01M 10/052 (2013.01); B82Y 30/00 (2013.01); H01M 2004/027 (2013.01)] 8 Claims
 
1. A negative electrode for a lithium secondary battery, comprising:
a silicon-based material doped with lithium having a content A, iron having a content B, and aluminum having a content eC,
wherein, by ICP analysis,

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