▎ 摘　　要

NOVELTY - The preparation method of supercapacitor electrode material based on graphene-loaded chromium-Anderson type heteropoly acid involves mixing graphene oxide solution with chromium-Anderson type heteropoly acid, carrying out ultrasonic wave dispersing, placing obtained mixture in a high-pressure hydrothermal kettle, carrying out hydrothermal reaction to obtain gel column, then washing and freeze-drying to obtain graphene-loaded chromium-Anderson heteropoly acid, and mixing active material with acetylene black and PTFE. USE - The method is useful for preparing supercapacitor electrode material based on graphene-loaded chromium-Anderson type heteropoly acid (claimed). ADVANTAGE - The method enables easy preparation of supercapacitor electrode material based on graphene-loaded chromium-Anderson type heteropoly acid with excellent physical and chemical performance, reduction ability of 2 mol/l potassium hydroxide solution, current density of 0.5 A/g and specific capacitance of 319.4 F/g in an environmentally-friendly manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for supercapacitor electrode material based on graphene-loaded chromium-Anderson type heteropoly acid prepared by the method.