▎ 摘　　要

NOVELTY - Preparing graphene by ammonia heat batch method comprises (i) adding graphite powder into reactor filled with ammonia gas, (ii) adding aqueous ammonia into reaction vessel of step (i) and stirring to obtain mixed liquid, (iii) heating and maintaining the reactor of step (ii), (iv) vacuum extracting and cooling using water, and absorbing the material in reactor of step (iii) to obtain aqueous ammonia solution containing graphene, and (v) filtering solution obtained in step (iv) and drying to obtain graphene product. USE - The method is useful for preparing graphene by ammonia heat batch method. ADVANTAGE - The graphene has excellent electrochemical performance; and is suitable for industrial production.