Preparation method of flexible electrode of ternary structure

Abstract

The preparation method of a flexible electrode of a ternary structure includes the following steps: adding a complexing agent to a stirring nickel nitrate solution to obtain a solution A, putting a piece of cut carbon cloth in the solution A, placing the solution A in a hydrothermal reaction kettle for reaction, taking out the carbon cloth and using deionizing water to wash and dry the carbon cloth, performing high-temperature thermal treatment, performing impregnation in a potassium permanganate solution, drying, and performing further thermal treatment to obtain a final electrode material. The preparation method of the flexible electrode of the ternary structure has the advantages of simple preparation, low cost and excellent performance.

Description

technical field [0001] The invention belongs to a preparation method of a ternary structure flexible electrode. Background technique [0002] Supercapacitor, also known as ultra-large capacity capacitor, is a new type of energy storage device between batteries and ordinary capacitors with both characteristics. It has the advantages of high energy density, high power density, high charge and discharge rate, and long cycle life, and is an important weapon to deal with the energy crisis. Supercapacitors are often used in wind and solar power generation, small electronic devices and electric vehicles. The electrode material is a key part that determines its electrochemical performance. Metal oxides and hydroxides have super high theoretical specific capacitance and are often used as electrode materials. The theoretical specific capacitance of nickel oxide is as high as 2073F g -1 , At the same time, it has the advantages of wide temperature range, wide range of resources, lo...

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Problems solved by technology

[0003] Chinese patent CN1944276A relates to a method for preparing nickel oxide electrodes for supercapacitors. The raw materials of this method are easy to obtain, but the preparation process needs to prepare nickel oxide powder first, then mix the powder with an organic solvent ball mill, and then perform hot pressing. The process is more cumbersome

Chinese patent CN02156897.9 relates to a method for preparing nano-nickel oxide, which uses alumina as a template, which greatly increases the difficulty of the process

At present, the prepared nickel oxide is usually in powder form, and binders and conductive agents need to be added during use, which is not only cumbersome and time-consuming, but also affects performance

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