▎ 摘　　要

NOVELTY - A lithium supplemented negative electrode material comprises fibrous graphene, nano-silicon particles deposited inside and on the graphene and metallic lithium particles distributed on the inside and the surface of the graphene and at least a portion of the surface of graphene is covered with a carbon layer. USE - Lithium supplemented negative electrode material for preparing lithium ion battery (claimed). ADVANTAGE - The negative electrode material has stable performance and high safety, which not only achieves uniform lithium supplementation, but also improves the efficiency and energy density of the lithium ion battery, thereby improving the conductivity of battery. The negative electrode material is prepared by simple preparation process and ensures long cycle life and excellent rate performance of lithium-ion battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of lithium supplemented negative electrode material, which involves (1) performing chemical vapor deposition of nano-silicon particles on graphene with silane gas under the protection of inert gas to form material, (2) adding material and organolithium solution to alkane solvent, dispersing to form dispersion liquid, (3) subjecting dispersion liquid to electrospinning treatment to form spin product and (4) coating carbon on spin product at high temperature under alkane gas as a carbon source.