▎ 摘　　要

NOVELTY - Three-dimensional graphene silicon carbon anode composite material comprises three-dimensional graphene as a network structure, where the three-dimensional graphene network structure is embedded with a core-shell structure. A core-shell structure is a carbon layer-coated nano-silicon. The core-shell structure has a gap between carbon layer and nano-silicon layer. USE - Three-dimensional graphene silicon carbon anode composite material. ADVANTAGE - The three-dimensional graphene silicon carbon anode composite material ensures excellent electrical conductivity, and greatly improves the cycle performance of the silicon-carbon composite material under large current. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing three-dimensional graphene silicon carbon anode composite material, which involves: (A) preparing a graphite oxide by a modified Hummer method; (B) dispersing the graphite oxide in ionic water to obtain Three-dimensional graphene silicon carbon anode composite material; and (C) ultrasonicating graphite oxide suspension at a frequency of 20-80kHz for 0.5-6 hours to achieve uniform and stable graphite oxide.