公开(公告)号：EP4190747A1

公开(公告)日：2023-06-07

申请号：EP22156786.0

申请日：2022-02-15

Applicant: Korea Institute of Ceramic Engineering and Technology

Inventor： ROH, Kwang-Chul ,  CHAE, Ji-Su ,  JUNG, Dae-Soo ,  CHOI, Jung-Hyun

IPC: C01B32/318 ,  C01B32/354 ,  C01B33/02 ,  C01B33/113 ,  H01M4/38 ,  H01M4/48 ,  H01M4/62 ,  H01M4/02

Abstract: Disclosed is a silicon-carbon composite negative-electrode active material for a lithium secondary battery having improved electrochemical properties which contains a carbon material derived from a wood-based material and a compound containing an isocyanate functional group in order to improve unstable dispersibility of silicon-based particles used as a negative-electrode active material for a lithium secondary battery, thereby improving electrical conductivity and producing stable electrode slurry. Further, a method for producing the same, and a lithium secondary battery including the same are disclosed.