▎ 摘　　要

NOVELTY - Preparing three-dimensional grade hole structure graphene electrode material comprises dissolving the metal oxide in a strong alkali aqueous solution, adding graphene oxide and stirring uniformly to obtain alkaline mixed solution, performing hydrothermal reaction on the alkaline mixed solution, drying and dehydrating to obtain mixed dry gel, subjecting the mixed dry gel to high-temperature heat treatment, washing and drying. USE - The method is useful for preparing three-dimensional grade hole structure graphene electrode material. ADVANTAGE - The method is simple, and avoids the disadvantage of non-uniformly template agent and activator dispersed. The material has high reducing degree, stable physical and chemical property, good conductivity, high energy density, high power density and good cycle life and rate capability.