▎ 摘　　要

NOVELTY - Preparing a battery positive electrode involves: (1) obtaining electrochemical cathode stripped graphene nanosheets; (2) evenly dispersing a dispersion liquid containing graphene nanosheets stripped by the electrochemical cathode, and removing most of the solvent in the dispersion liquid to obtain a wet and flat graphene film; and (3) press molding the graphene film. USE - The method is useful for preparing positive electrode of aluminum-ion battery (claimed). ADVANTAGE - The aluminum-ion battery is environmentally-friendly, and has wide temperature range, excellent flame retardance, cycle performance and rate performance, and high capacity, volume energy and power. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for use of the positive electrode for aluminum-ion battery.