▎ 摘　　要

NOVELTY - Preparation of graphene/carbon-silicon nanocomposite anode material, involves ultrasonically dispersing graphene oxide in water to obtain 0.01-2 mg/mL aqueous dispersion of graphene oxide, adding asphalt and silicon nanoparticles to the aqueous dispersion, stirring, dispersing to obtain a mixed solution, spray-drying the mixed solution, to obtain a spheroidal asphalt-graphene-oxide-coated silicon nanocomposite, and heating the nanocomposite in an inert atmosphere. USE - Preparation of graphene/carbon-silicon nanocomposite anode material. ADVANTAGE - The method enables simple and easy large-scale preparation of anode material having high specific capacity, excellent charging/discharging characteristics, and excellent cycle stability.