Preparation method for carbon nanofiber electrode

Abstract

The invention discloses a preparation method for a carbon nanofiber electrode. The method comprises the steps of 1, adding polymer powder to N,N-dimethylformamide, performing stirring to obtain a homogenous and dispersed transparent spinning solution, performing spinning by using an electrostatic spinning apparatus to obtain a fiber membrane, then flatly laying the fiber membrane on a high-temperature-resistant quartz plate, putting the quartz plate into a tubular furnace for performing pre-oxidization treatment, and finally obtaining a carbon nanofiber membrane; and 2, cutting the carbon nanofiber membrane into a plurality of thin strip-shaped carbon nanofiber membranes, upwards and vertically putting cuts of all the thin strip-shaped carbon nanofiber membranes between two foam nickel sheets, then putting lead wires between the cuts of the thin strip-shaped carbon nanofiber membranes and the foam nickel sheets, and finally performing pressing to obtain the carbon nanofiber electrode. The preparation method is simple in operation; and as a supercapacitor electrode material, rich hole structures in the carbon nanofiber membrane can be fully utilized, thereby facilitating quick transmission of ions.

Description

technical field [0001] The invention belongs to the technical field of electrode preparation, and in particular relates to a method for preparing a carbon nanofiber electrode. Background technique [0002] Carbon nanofibers (CNFs), as a new type of nanocarbon material with a quasi-one-dimensional structure, have many advantages such as easy processing and molding, controllable microstructure, excellent mechanical properties, large specific surface area, and good electrical conductivity. It has broad application prospects in the field of supercapacitors, and has attracted much attention in scientific research and industry in recent years. [0003] Electrodes are the key components of supercapacitors, and their preparation methods greatly affect the electrochemical performance of supercapacitors. At present, there are two main methods for the preparation of carbon nanofiber electrodes: one is to grind the carbon nanofiber film into powder, then mix it with conductive carbon b...

AI Technical Summary

Problems solved by technology

The advantage of this preparation method is that the damaged film can be made into an electrode sheet, but the operation is relatively complicated, and it may be unevenly distributed on the surface of the current collector; the other is to directly sandwich the carbon nanofiber film between two current collectors at a certain compression molding under pressure

This preparation method is simple to operate and does not require the use of conductive carbon black and binders, but the disadvantage is that it cannot make full use of the radially rich pore structure of carbon nanofibers, obliterating the unique advantages of carbon nanofibers

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