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Preparation method of carbon nano tube yarn flexible super capacitor composite electrode material

A technology of supercapacitors and carbon nanotubes, which is used in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., which can solve the problems of unsatisfactory energy density and power density, low capacitance of conventional linear flexible supercapacitors, and poor mechanical stability. problems, to achieve the effect of simple and controllable electroplating process, good application value and good mechanical stability

Inactive Publication Date: 2016-01-13
DONGGUAN HONGXUAN IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of low capacitance capacity, unsatisfactory energy density and power density, and poor mechanical stability of conventional linear flexible supercapacitors, the present invention provides a method for preparing a carbon nanotube yarn-based flexible linear supercapacitor composite electrode material, which has application The characteristics of broad prospects, excellent mechanical properties and environmentally friendly processes

Method used

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Experimental program
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Effect test

Embodiment 1

[0024] A preparation method of a carbon nanotube yarn flexible supercapacitor composite electrode material according to the present invention is specifically carried out as follows: a carbon nanotube yarn with a diameter of about 30 μm is spun and prepared by self-made spinning equipment at a speed of 2000 rpm; Using a one-step constant potential electroplating method, the carbon nanotube yarn is used as the cathode, Ag / AgCl is used as the reference electrode, and metal platinum is used as the reference electrode. 3 ) 2 , 0.1mol / L NaNO 3 Electroplating in distilled water electroplating solution, electroplating 5min under the condition of -1.0V constant voltage, after electroplating is finished, this carbon nanotube composite yarn is heated at 200 o C under the condition of heating in an oven for 10min, the carbon nanotube yarn loaded with Co 3 o 4 Composite electrode material.

Embodiment 2

[0026] A preparation method of a carbon nanotube yarn flexible supercapacitor composite electrode material according to the present invention is specifically carried out according to the following steps: the carbon nanotube yarn with a diameter of about 31 μm is spun and prepared by self-made spinning equipment at a speed of 2000 rpm; A one-step constant potential electroplating method is used to use the carbon nanotube yarn as the cathode, Ag / AgCl as the reference electrode, and metal platinum as the contrast electrode. 3 ) 2 , 0.1mol / L NaNO 3 electroplating in the distilled water electroplating solution, and electroplating under the condition of -1.0V constant voltage for 6min, after the electroplating is completed, the carbon nanotube composite yarn is heated at 170 o C and heated in an oven for 30 minutes to obtain the carbon nanotube yarn loaded NiO composite electrode material.

Embodiment 3

[0028] A method for preparing a carbon nanotube yarn flexible supercapacitor composite electrode material according to the present invention is specifically carried out according to the following steps: a carbon nanotube yarn with a diameter of about 36 μm is spun and prepared by self-made spinning equipment at a speed of 5000 rpm; Using a one-step constant potential electroplating method, the carbon nanotube yarn is used as the cathode, Ag / AgCl is used as the reference electrode, and metal platinum is used as the reference electrode. 4 , 0.1mol / L Na 2 SO 4 Electroplating in distilled water electroplating solution, electroplating 1min under the condition of -1.5V constant voltage, after electroplating is completed, the carbon nanotube composite yarn is heated at 170 o Under the condition of C, heat in an oven for 30min to obtain the carbon nanotube yarn loaded with MnO 2 Composite electrode material.

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Abstract

The invention discloses a preparation method of a carbon nanotube yarn flexible super capacitor composite electrode material. The method comprises the steps of textile process preparation of carbon nanotube yarns, electroplating composite preparation of an electrode material raw product, and heating and purifying processing of an electrode material; and finally a carbon nano tube loaded transition-state metal oxide composite electrode material can be obtained; and transition-state metal oxides attached onto the cathode material include Co3O4 nanoparticles, NiO nanoparticles or MnO2 nanoparticles. The preparation method of the carbon nanotube yarn flexible super capacitor composite electrode material has the advantages of broad application prospect, excellent mechanical performance and green and environmentally-friendly process.

Description

technical field [0001] The invention relates to the technical field of supercapacitor electrode materials, in particular to a method for preparing a carbon nanotube yarn flexible supercapacitor composite electrode material. Background technique [0002] Supercapacitors have the advantages of high power density, fast charge and discharge rate, cycle life of more than 10,000 times, and wide operating temperature range. It has been widely used in consumer electronics industries such as automobiles, national defense technology, aerospace and household appliances, and has become a research hotspot in countries all over the world. In the research and development of supercapacitors, how to improve the capacitance content, energy density and power density of supercapacitors is an important research topic, and the development of high-performance electrode materials is the key technology to solve this problem. [0003] At present, carbon materials are one of the ideal electrode mater...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/36H01G11/30
CPCY02E60/13
Inventor 田勇光
Owner DONGGUAN HONGXUAN IND CO LTD
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