公开(公告)号：US11411213B2

公开(公告)日：2022-08-09

申请号：US14690830

申请日：2015-04-20

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jung-Yeon Won ,  Kyeu-Yoon Sheem ,  Dae-Seop Lim ,  Sung-Hwa Eo ,  Jung-Wook Cha

IPC: H01M4/36 ,  H01M4/583 ,  H01M10/052 ,  H01M4/04 ,  H01M4/587 ,  C01B32/05 ,  H01M4/02 ,  H01M4/133

Abstract: A negative active material for a rechargeable lithium battery includes a composite carbon particle including a core particle including crystalline-based carbon and a coating layer positioned on the surface of the core particle and including amorphous carbon. A peak intensity (I1620) at 1620 cm−1 ranges from about 0.01 to about 0.1, a peak intensity (I1360) at 1360 cm−1 ranges from about 0.05 to about 0.5, and a peak intensity (I1580 at 1580 cm−1 ranges from about 0.1 to about 0.8 in a Raman spectrum of the composite carbon particle.