▎ 摘　　要

NOVELTY - The preparation method of high-conductivity graphene microsheets involves (1) melting metal sodium, adding a certain amount of crystalline flake graphite to metal sodium after being melted, and rapidly stirring to make the metal sodium (atoms or ions) intercalated into crystalline flake graphite, (2) adding a small amount of reaction solvent to participate in the reaction, and (3) washing and filtering after the reaction is completed, and drying. USE - Preparation method of high-conductivity graphene microsheets. ADVANTAGE - The method enables preparation of graphene microsheets with conductivity up to 105 s/cm, by environmentally-friendly process.