▎ 摘　　要

NOVELTY - Preparation of ramsdellite-type manganese dioxide/carbon composite, involves synthesizing graphene oxide by improved Hummers method, thermally reducing the graphene oxide to obtain reduced graphene oxide, slowly dripping a bivalent manganese salt solution into ammonium persulfate solution, stirring and react to obtain an oxidation reaction solution, mixing the reduced graphene oxide with the oxidation reaction liquid in a reaction kettle, and hydrothermally reacting. USE - Preparation of ramsdellite-type manganese dioxide/carbon composite used as anode material (all claimed) in zinc ion batteries. ADVANTAGE - The method provides comprise having stable structure and excellent conductivity. The composite provides zinc ion battery having excellent cycle performance and multiplying power performance.