▎ 摘　　要

NOVELTY - Nickel oxide (NiO) graphene-polypyrrole supercapacitor composite electrode material includes nano NiO supports fluorine-doped graphene, a dopant, an initiator, and pyrrole, and the mass ratio is 5-10:20-30:3-4:1. USE - NiO graphene-polypyrrole supercapacitor composite electrode material. ADVANTAGE - The NiO graphene-polypyrrole supercapacitor composite electrode material exposes a large number of electrochemically active sites, nano NiO loaded fluorine-doped graphene surface generates a layer of nano-polypyrrole film, which inhibits the volume expansion of NiO, and interface between polypyrrole and NiO induces an internal electric field to produce a synergistic effect, and at the same time, graphene, polypyrrole and NiO with excellent conductivity form a three-dimensional conductive network, which enhances the conductivity of the electrode material. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of the NiO graphene-polypyrrole supercapacitor composite electrode material, which involves adding nano NiO loaded fluorine-doped graphene into a mixed solvent of ethanol and distilled water, and after uniform ultrasonic dispersion, adding sodium p-toluenesulfonate as the dopant, and add pyrrole at 0-5 degrees C, and slowly adding the initiator ammonium persulfate, react for 20-30 hours, filtering, washing and drying, to prepare NiO graphene-polypyrrole supercapacitor composite electrode material.