▎ 摘　　要

NOVELTY - Preparation of topography-controlled graphene/cobaltous hydroxide composite material, involves weighing and adding cobalt acetate tetrahydrate in graphene oxide solution, stirring and uniformly dispersing the mixture, adding precipitating agent and surfactant in resulting solution and stirring evenly, transferring resulting solution into hot water kettle and carrying out hydrothermal reaction, cooling the reaction mixture and washing the resulting gel with deionized water and freeze-drying under vacuum, to obtain topography-controlled graphene/cobaltous hydroxide composite material. USE - Preparation of topography-controlled graphene/cobaltous hydroxide composite material (claimed). ADVANTAGE - The preparation process is simplified and electrochemical performance of composite material is excellent. The composite material is obtained with high specific capacity.