公开(公告)号：US20230286808A1

公开(公告)日：2023-09-14

申请号：US18320435

申请日：2023-05-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yujing SHA ,  Ruohan YU ,  Shengan XIA ,  Yangxing LI ,  Liang ZHOU

IPC: C01B33/025 ,  H01M4/38 ,  H01M4/66 ,  H01M4/04

CPC classification number: C01B33/025 ,  H01M4/386 ,  H01M4/667 ,  H01M4/0428 ,  H01M4/0471

Abstract: Silicon carbon composite materials, preparation methods and applications of the silicon carbon composite material are provided. The silicon carbon composite material includes a core and a carbon coating layer. At least one part of a surface of the core is covered by the carbon coating layer. The core includes a carbon matrix and SiOx particles, the carbon matrix is continuously distributed and includes N channels in communication with outside, and the SiOx particles are filled in the channels. A size of the SiOx particle is 0.1 nm to 0.9 nm, 0.9≤x≤1.7, and N≥1 and is an integer.