US 11,955,625 B2
Composite negative electrode active material, method of producing the same, and negative electrode and lithium secondary battery including the same
Eunjun Park, Daejeon (KR); Joon-Sup Kim, Daejeon (KR); Jaekyung Sung, Ulsan (KR); Yoon Kwang Lee, Ulsan (KR); Tae Yong Lee, Ulsan (KR); and Jae Phil Cho, Ulsan (KR)
Assigned to SK On Co., Ltd., Seoul (KR); and UNIST (Ulsan National Institute of Science and Technology), Ulsan (KR)
Filed by SK On Co., Ltd., Seoul (KR); and UNIST (Ulsan National Institute of Science and Technology), Ulsan (KR)
Filed on Aug. 20, 2021, as Appl. No. 17/407,366.
Claims priority of application No. 10-2020-0105117 (KR), filed on Aug. 21, 2020.
Prior Publication US 2022/0059821 A1, Feb. 24, 2022
Int. Cl. H01M 4/36 (2006.01); H01M 4/02 (2006.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01)
CPC H01M 4/364 (2013.01) [H01M 4/58 (2013.01); H01M 4/625 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A negative electrode active material comprising a three-dimensional composite,
wherein the three-dimensional composite comprises secondary particles containing a silicon carbide-based nanosheet having a bent portion and amorphous carbon, the silicon carbide-based is represented by SiCx, and 0<x≤1.