Preparation method of FeCo2S4/carbon fiber cloth supercapacitor electrode material

The invention discloses a preparation method of a FeCo2S4/carbon fiber supercapacitor electrode material. The preparation method comprises the following steps: preprocessing carbon fiber cloth: cutting the carbon fiber cloth into patterns with uniform sizes, performing ultrasonic treatment in a mixed solution of acetone and ethanol for a period of time, washing and then immersing the cloth into a potassium permanganate solution for oil bath, and finally, performing washing and drying; preparation of electro-deposition liquid: electrochemically codepositing FeCo2S4 on the flexible carbon cloth with the woven carbon fiber structure, wherein the electro-deposition solution contains ferric trichloride hexahydrate, cobalt dichloride hexahydrate with different concentrations and thiourea, and obtaining the four compounds with different concentrations; electrochemical deposition: in a three-electrode system, taking carbon fiber cloth as a working electrode, performing cyclic voltammetry tests for many times at a cer