▎ 摘　　要

NOVELTY - A graphite-based nano-size silicon electrode preparing method involves mixing graphene oxide and inorganic acid to prepare solution at 0-90 degrees C for 0.5-48 hours until the reaction without bubble generation followed by filtering the solution and washing and drying in a vacuum to obtain graphite-based nano-size silicon electrode, where the solution comprises 0.01-50% graphene oxide and silicon alloy powder. USE - Method for preparing a graphite-based nano-size silicon electrode. ADVANTAGE - The method enables preparing the graphite-based nano-size silicon electrode with high efficient and better discharge property in a cost-effective and simple manner.