▎ 摘　　要

NOVELTY - A graphene-based silicon-carbon composite anode material preparing method involves uniformly dispersing graphene in a first dispersing agent to obtain graphene dispersion, uniformly dispersing silicon powder in second dispersing agent, adding silane coupling agent after ultrasonic dispersing magnetically stirred to obtain silicon powder dispersion, followed by mixing silicon powder and graphene dispersions to obtain mixed graphene-silicon powder dispersions, adding graphite to mixed dispersion, mixing and drying in vacuum to obtain graphene-silicon powder mixture and grinding mixture. USE - Method for preparing graphene-based silicon-carbon composite anode material. ADVANTAGE - The material has excellent cycle performance, and can be prepared in simple, easy and cost effective manner. DETAILED DESCRIPTION - A graphene-based silicon-carbon composite anode material preparing method involves uniformly dispersing graphene in a first dispersing agent to obtain graphene dispersion, uniformly dispersing silicon powder in second dispersing agent, adding silane coupling agent after ultrasonic dispersing magnetically stirred to obtain silicon powder dispersion, followed by mixing silicon powder and graphene dispersions to obtain mixed graphene-silicon powder dispersions, adding graphite to the mixed dispersion, uniformly mixing and drying in vacuum to obtain a graphene - silicon powder mixture and grinding mixture to obtain product.