▎ 摘　　要

NOVELTY - Producing graphene, comprises subjecting at least one graphite intercalation compound to expansion conditions to produce graphene, where the particle size of the graphite intercalation compound and the expansion time of the expansion conditions are adapted to provide: a high quality graphene reaction product in which the average expansion in the reaction product is at least 10000; and a high quality graphene reaction product in which the average separation distance between two adjacent graphene sheets in the reaction product is at least 5 mu . USE - The method is useful for producing graphene which is used in: an energy storage system (all claimed); large volume dispersion in paints, coatings, composites, films, adhesives, lubricants and functional fluids; anticorrosion coatings; polymer composite industry; metal composite industry; electronic industry; automobile industry for lightweight automobile parts and functional coatings of various body parts; aircraft industry for lightweight aircraft parts; biomedical field; and energy industry for battery and solar cell components. ADVANTAGE - The method: is simple, efficient, cost-effective, fast speed and scaled up; does not need chemicals; retains structural integrity; and provides the high-quality graphene using low-cost conditions, where the graphene exhibits enhanced performance and stability for electrodes of aluminum-ion battery. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) a composition prepared by the method; (2) an ink composition prepared by the method, and comprising at least one solvent vehicle; and (3) an energy storage system comprising at least one material prepared by the method or the compositions.