Preparation method of iron-cobalt-nickel oxide/carbon cloth composite flexible electrode

Abstract

This patent uses cotton cloth as raw material, carbonizes it into carbon cloth, and obtains flexible supercapacitor electrode base material with high specific surface area, oxyge functional groups andgood mechanical properties then through mixed acidification treatment. The obtained treated carbon is added into ferric trichloride hexahydrate, Cobalt chloride hexahydrate, nickel chloride hexahydrate and ethanol solution after a period of time, ammonium bicarbonate is added and continuously stirred, after that reaction is completed, the mixture is washed with deionize water several times, dried, calcined in a high-temperature tubular furnace for a period of time, and taken out after the mixture is cooled to room temperature, so as to prepare an iron cobalt nickel oxide / carbon cloth composite flexible electrode material. By adjusting the reaction time and the amount of iron, cobalt and nickel sources to control the loading amount and morphology of multicomponent transition metal oxides,the flexible supercapacitor electrode materials with good flexibility and excellent electrochemical performance were prepared.

Description

technical field [0001] The invention relates to a preparation method of an iron-cobalt-nickel oxide / carbon cloth composite flexible electrode, in particular to a method of carbonizing cotton cloth to prepare carbon cloth, then acidifying it with concentrated sulfuric acid and concentrated nitric acid, and then reacting with trichlorohexahydrate A new method for preparing iron-cobalt-nickel oxide / carbon cloth composite flexible electrodes through chemical reaction and heat treatment in the ethanol solution of iron oxide, cobalt chloride hexahydrate, and nickel chloride hexahydrate. Background technique [0002] Supercapacitor is a new type of energy storage device between ordinary batteries and capacitors, which can provide higher power density than ordinary batteries and greater energy density than ordinary capacitors, as well as its excellent cycle stability and long-term It has become an energy storage device that has been widely concerned by scientific researchers due to ...

AI Technical Summary

Problems solved by technology

It can be noticed that the above patents use hydrothermal synthesis and in-situ electrodeposition to load single or double transition metal oxides on carbon cloth. The preparation process is cumbersome and complicated, which greatly increases the cost of electrode preparation and cannot be mass-produced.