▎ 摘　　要

NOVELTY - A composite electrode material preparing method involves dissolving a nickel source, a cobalt source, and a structure directing agent in water to obtain a mixed liquid, and dispersing 1-2 mg/l graphene oxide in water to obtain a dispersion liquid. The mixed liquid is added with the dispersion liquid and foamed nickel to the reaction vessel and allowed for hydrothermal reaction to obtain the finished product, where the concentration of the nickel source in the mixed liquid is 0.05-0.2 mol/l, the concentration of the cobalt source in the mixed liquid is 0.05-0.2 mol/l, and the feeding volume ratio of the mixed liquid and the dispersion liquid is 1:1-3. USE - Method for preparing composite electrode material for use as electrode of supercapacitor (all claimed). ADVANTAGE - The method enables preparing composite electrode material with enhanced specific capacity and prolonged circulation stability, in simple, eco-friendly and cost effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a composite electrode material prepared by the method.