▎ 摘　　要

NOVELTY - Synergistically preparing conductive graphene film by preheating treatment-chemical reduction comprises (1) preparing graphene oxide material, (2) preheating the obtained graphene oxide material to obtain a partially reduced graphene oxide material, and (3) reacting the partially reduced graphene oxide material with the reducing agent solution at 50-90℃ for 1-10 hours to obtain a graphene film. USE - The method is for synergistically preparing conductive graphene film by preheating treatment-chemical reduction useful in electrochemical energy storage, graphene heating film, graphene heat conducting film or electromagnetic shielding (claimed). ADVANTAGE - The method enables to prepare conductive graphene film, which solves the problem that the reduction mode of graphene oxide in the existing technology, the reaction process is violent, and it is difficult to realize the control of the conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for conductive graphene film, obtained by the method as mentioned above.