公开(公告)号：US20230420663A1

公开(公告)日：2023-12-28

申请号：US18463954

申请日：2023-09-08

Applicant: BYD COMPANY LIMITED

Inventor： Biao LI ,  Zizhu GUO ,  Tong ZHANG ,  Zhuo SHI

IPC: H01M4/36 ,  C22C24/00 ,  B22F1/08 ,  B22F1/18 ,  B22F9/00 ,  B22F9/04 ,  H01M4/134 ,  H01M4/38 ,  H01M10/0562 ,  H01M10/052

CPC classification number: H01M4/366 ,  C22C24/00 ,  B22F1/08 ,  B22F1/18 ,  B22F9/002 ,  B22F9/04 ,  H01M4/134 ,  H01M4/382 ,  H01M4/386 ,  H01M10/0562 ,  H01M10/052 ,  B22F2301/054 ,  B22F2009/043 ,  H01M2004/027

Abstract: The present disclosure provides a negative electrode material, a preparation method thereof, and an all-solid-state lithium battery. The negative electrode material includes a core and an amorphous lithium-silicon alloy layer cladding the core. The core includes a glassy solid electrolyte and amorphous lithium-silicon alloy particles dispersed in the glassy solid electrolyte. The material of the amorphous lithium-silicon alloy particles is LixSi, 0