▎ 摘　　要

NOVELTY - A three-dimensional nickel hydroxide-graphene composite material comprises a conductive network with a three-dimensional structure, and nickel hydroxide loaded on the three-dimensional conductive network with a size of 50 nm-500 mu m. The three-dimensional conductive network comprises graphene oxide nanosheets, and has pore structure comprising macropores, micropores, and mesopores. The mass content of nickel hydroxide in the composite material is 50-95%. USE - Three-dimensional nickel hydroxide-graphene composite material used as cathode material in nickel-based battery (claimed) used in portable electronic device, electric vehicle, and aerospace application. ADVANTAGE - The three-dimensional nickel hydroxide-graphene composite material is prepared by simple process in a short time with high electrical conductivity, and excellent poisoning resistance, and cycle stability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of three-dimensional nickel hydroxide-graphene composite material; and (2) nickel-based battery.