▎ 摘　　要

NOVELTY - A silicon composite anode material comprises nano-silicon particles, graphene layer and amorphous carbon. The graphene and the nano-silicon particles have a core-shell structure, where graphene layer is a shell and nano-silicon particles are a core and there is gap between the graphene layer and the nano-silicon particles. The amorphous carbon fills a void in the graphene layer. USE - Silicon composite anode material for lithium-ion battery (claimed). ADVANTAGE - The silicon composite anode material is prepared by simple preparation process and is easy to use. The use of amorphous carbon in anode material effectively fills the voids and prevents the expansion failure in the later charge and discharge process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of silicon composite anode material, which involves using silicon powder, binder, dispersant, graphene oxide, water and asphalt powder.