▎ 摘　　要

NOVELTY - The production method of micro-nano graphene sheets involves performing electrolysis of graphite using graphite plate as anode, inert metal plate or graphite plate as cathode and ultrapure water or mellitic acid solution as electrolyte to obtain electrolytic solution containing micro-nano carbon material having diameter of 10-500 nm, evaporating, and heating at 400-600 for 30-120 minutes under argon or nitrogen atmosphere. The micro-nano graphene sheets have thickness of 5-10 nm. USE - The method is useful for producing micro-nano graphene sheets (claimed). ADVANTAGE - The method produces micro-nano graphene sheets in simple and environmentally-friendly manner.