▎ 摘　　要

NOVELTY - Expansion graphite anode material comprises irregular graphene sheet. The thickness of the graphene sheet is 0.05-0.09 microns. The expanded graphene anode material is mesoporous material with specific surface area of 35-65 m2/g. The ID/IG value of the expanded graphene anode material is 0.0314-0.0687. USE - The anode material is useful in electrode and aluminum ion battery (all claimed). ADVANTAGE - The anode material: controls the degree of graphitization of the expanded graphite anode material, thickness of the graphene sheet and the specific surface area; makes tetrachloroaluminate better reversibly deembedding; and obtains better electrochemical performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) preparing the anode material, comprising grinding expandable graphite to obtain expanded graphite powder, heat-treating expanded graphite powder to obtain expanded graphite anode material; (2) electrode, comprising expanded graphite anode material or expanded graphite anode material prepared by the preparation method; and (3) aluminum ion battery, comprising anode, cathode, membrane and electrolyte, where the anode is the electrode.