▎ 摘　　要

NOVELTY - An aqueous zinc ion anode material of oxygen vacancy manganese dioxide/oxidized graphene, comprises manganese dioxide and oxidized graphene are in situ composite by hydrothermal reaction to successfully introduce a large number of oxygen vacancies, and the obtained anode material has a high specific surface area nano-roll structure, thus showing excellent electrochemical performance. USE - The oxygen vacancy manganese dioxide/graphene oxide aqueous zinc ion material anode is useful in large-scale energy storage system. ADVANTAGE - The oxygen vacancy manganese dioxide/graphene oxide aqueous zinc ion anode has high reversible electrochemical capacity and high cycle performance, and exhibits excellent electrochemical performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) the preparation method of oxygen vacancy manganese dioxide/graphene oxide water system zinc ion material anode; (2) the oxygen vacancy manganese dioxide/graphene oxide aqueous zinc ion material anode.