▎ 摘　　要

NOVELTY - Manufacture of a lithium-ion battery negative-electrode material involves preparing modified graphene nanoplatelets, growing silicon nanospheres on the graphene nanoplatelets to obtain a composite material, depositing a metal oxide layer on the graphene nanoplatelet-silicon nanosphere surface, performing electrospinning and calcination to obtain a carbon nanofiber composite material, performing an acid treatment on the material to remove the metal oxide layer and form a pore structure, and forming a carbon coating layer outside of the carbon nanofiber composite material. USE - Manufacture of lithium-ion battery negative-electrode material. ADVANTAGE - The method enables simple manufacture of the electrode material which provides electrode having improved stability and integrity. DETAILED DESCRIPTION - Manufacture of a lithium-ion battery negative-electrode material involves preparing modified graphene nanoplatelets, growing silicon nanospheres on the graphene nanoplatelets to obtain a graphene nanoplatelet-silicon nanosphere composite material, depositing a metal oxide layer on the graphene nanoplatelet-silicon nanosphere surface by atomic layer deposition, performing electrospinning and calcination to obtain a carbon nanofiber composite material, performing an acid treatment on the carbon nanofiber composite material to remove the metal oxide layer and form a pore structure, and forming a carbon coating layer outside of the carbon nanofiber composite material.