公开(公告)号：US20240347709A1

公开(公告)日：2024-10-17

申请号：US18751373

申请日：2024-06-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yale Wu ,  Ming Zhang ,  Jimin Yang

IPC: H01M4/36 ,  B01J21/06 ,  B01J23/745 ,  B01J35/45 ,  B01J37/02 ,  B01J37/18 ,  C01B32/162 ,  C01B33/02 ,  H01M4/02 ,  H01M4/38 ,  H01M4/587

CPC classification number: H01M4/366 ,  B01J21/06 ,  B01J23/745 ,  B01J35/45 ,  B01J37/0207 ,  B01J37/0236 ,  B01J37/18 ,  C01B32/162 ,  C01B33/02 ,  H01M4/386 ,  H01M4/587 ,  C01B2202/22 ,  C01B2202/34 ,  C01P2004/03 ,  C01P2004/13 ,  C01P2004/61 ,  C01P2004/80 ,  C01P2006/12 ,  C01P2006/40 ,  C01P2006/80 ,  H01M2004/021 ,  H01M2004/027

Abstract: Provided are a silicon negative electrode material, which is characterized by comprising silicon particles and carbon nanotubes grown on the surface of the silicon particles, wherein the carbon nanotubes comprise fluffy carbon nanotubes and intertwined filamentary carbon nanotubes, and the silicon particles are wrapped by the fluffy carbon nanotubes and the filamentary carbon nanotubes. Further provided is a method for preparing the silicon negative electrode material.