▎ 摘　　要

NOVELTY - A quaternary carbon fiber cloth/graphene/cobalt oxide/polyaniline composite electrode material preparing method involves cleaning a carbon fiber cloth in organic solvent, washing by water, drying in a drying box, taking graphene oxide dispersion in a three-electrode electrochemical working station system, reacting bivalent cobalt salt and carbon fiber cloth by cyclic voltammetry, and depositing graphene oxide onto the carbon cloth, followed by placing a working electrode in the three-electrode electrochemical working station system, taking out the electrode, washing with water and drying. USE - Method for preparing quaternary carbon fiber cloth/graphene/cobalt oxide/polyaniline composite electrode material. ADVANTAGE - The method enables preparing the quaternary carbon fiber cloth/graphene/cobalt oxide/polyaniline composite electrode material with better repeatability and improved working efficiency and capacitor performance in a simple and easy manner. DETAILED DESCRIPTION - A quaternary carbon fiber cloth/graphene/cobalt oxide/polyaniline composite electrode material preparing method involves ultrasonically cleaning a carbon fiber cloth in organic solvent for 20 minutes, washing for 3 times by deionized water and drying in a vacuum drying box at 60 degrees C for 8 hours, taking 1-10 mg/mL graphene oxide dispersion as electrochemical deposition solution in a three-electrode electrochemical working station system, reacting bivalent cobalt salt, ammonium fluoride and carbon fiber cloth as substrate by cyclic voltammetry for 5-10 cycles, and depositing graphene oxide onto the carbon fiber cloth to obtain a carbon fiber cloth/graphene composite having a voltage range of -1.4 to 0.6 V, followed by mixing urea and water into uniform solution, adding into a high pressure reaction kettle, placing the carbon fiber cloth/graphene composite into the high pressure reaction kettle to react at 80-120 degrees C for 8-12 hours, taking out the carbon fiber cloth, washing by distilled water for 3 times, vacuum drying at 60 degrees C for 8 hours, annealing at 300-350 degrees C for 1-3 hours, and adding aniline monomer and inorganic acid in a mol ratio of 1:1-1:5 in inert gas to prepare uniform solution as electrolyte. The working electrode is placed in the three-electrode electrochemical working station system, followed by reacting under a constant pressure of 0.5-0.9V for 3-10 minutes, taking out the working electrode, washing with de-ionized water and drying to obtain final product.