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A kind of preparation method of carbon nanotube yarn supercapacitor

A technology of supercapacitors and carbon nanotubes, which is applied in the manufacture of hybrid/electric double layer capacitors, etc., can solve the problems of chemical battery pollution, poor temperature characteristics, and short service life, and achieve high energy density, light weight, and raw material costs. low effect

Active Publication Date: 2018-02-02
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, they have inherent short lifespan, poor temperature characteristics, chemical battery pollution, high cost and other fatal weaknesses, and there has been no better solution.

Method used

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  • A kind of preparation method of carbon nanotube yarn supercapacitor

Examples

Experimental program
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Effect test

Embodiment 1

[0028] A carbon nanotube yarn supercapacitor, its preparation method is as follows:

[0029] A platinum wire with a diameter of 15 microns and a carbon nanotube yarn with a diameter of 20 microns are intertwined to form a double-ply yarn (denoted as Pt / CNT-1520); 0.2g aniline, 0.3g ammonium persulfate, 16g high chlorine After mixing acid, 16g of deionized water and 4g of absolute ethanol evenly, stick a Pt / CNT-1520 double-ply yarn with a length of about 15 cm on a support and put it into the above mixed solution. The reaction was stirred for 48 hours, and polyaniline was grown in situ on the surface of the Pt / CNT-1520 double-ply yarn to obtain a composite yarn (denoted as Pt / CNT / PANI-1520A), and then the composite yarn was carefully taken out with tweezers, and deionized Rinse the surface with water, and dry it in vacuum to remove water; soak two dried Pt / CNT / PANI-1520A composite yarns in polyvinyl alcohol-phosphoric acid sol for 1 minute, slowly pull out, and the surface of t...

Embodiment 2

[0032] A carbon nanotube yarn supercapacitor, its preparation method is as follows:

[0033] A gold wire with a diameter of 12 microns and a carbon nanotube yarn with a diameter of 15 microns are intertwined to form a double-ply yarn (referred to as Au / CNT-1215); 0.2g aniline, 0.5g ammonium persulfate, 24g high chloride After mixing acid, 10g deionized water and 6g absolute ethanol evenly, stick an Au / CNT-1215 double-ply yarn with a length of about 15 cm on a support and put it into the above mixed solution, and keep it at -15°C The reaction was stirred for 40 hours, and polyaniline was grown in situ on the surface of the Au / CNT-1215 double-ply yarn to obtain a composite yarn (referred to as Au / CNT / PANI-1215A), and then the composite yarn was carefully taken out with tweezers, and deionized Rinse the surface with water, and vacuum dry to remove the water; soak two dried Au / CNT / PANI-1215A composite yarns in the polyvinyl alcohol-phosphate sol for 1 minute, slowly pull out, and ...

Embodiment 3

[0036] A carbon nanotube yarn supercapacitor, its preparation method is as follows:

[0037] A silver wire with a diameter of 50 microns and a carbon nanotube yarn with a diameter of 20 microns are intertwined to form a double-ply yarn (referred to as Ag / CNT-5020); 0.2g aniline, 0.4g ammonium persulfate, 30g high chloride After mixing acid, 30g deionized water and 8g absolute ethanol evenly, stick a Ag / CNT-5020 double-ply yarn with a length of about 15 cm on a support and put it into the above mixed solution. The reaction was stirred for 36 hours, and polyaniline was grown in situ on the surface of the Ag / CNT-5020 double-ply yarn to obtain a composite yarn (referred to as Ag / CNT / PANI-5020A), and then the composite yarn was carefully taken out with tweezers, and deionized Rinse the surface with water, and vacuum dry to remove moisture; soak two dried Ag / CNT / PANI-5020A composite yarns in polyvinyl alcohol-phosphoric acid sol for 1 minute, slowly pull out, and the surface of the ...

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Abstract

The invention belongs to the technical field of capacitor preparation, and discloses a method for preparing a carbon nanotube yarn supercapacitor, which is a one-dimensional linear structure capacitor, which contains metal wire, carbon nanotube yarn and conductive polyaniline, and the preparation process is as follows: : 1. Metal wire and carbon nanotube yarn are intertwined to form M-CNT double-ply yarn or metal wire as the core-spun yarn structure M-CNT yarn with carbon nanotube yarn coated on the core surface; 2. M / CNT yarn Put CNT or M-CNT into a mixed solution of aniline, ammonium persulfate, perchloric acid, deionized water and ethanol, react at -20-5°C for 12-48 hours, and in situ on the surface of M / CNT or M-CNT Composite yarn M / CNT / PANI or M‑CNT‑PANI obtained by growing polyaniline; 3. Dip two pieces of M / CNT / PANI or M‑CNT‑PANI into polyvinyl alcohol‑phosphate sol to form a film on the surface , and then two composite yarns are wound together to obtain a supercapacitor. The capacitance of the supercapacitor prepared by the invention is higher than 100 F / g, and has the advantages of short charging and discharging time, high energy density, simple process, etc., and is expected to be applied to textile wearable power supplies.

Description

technical field [0001] The invention relates to the technical field of capacitor preparation, in particular to a method for preparing a carbon nanotube yarn supercapacitor. Background technique [0002] Supercapacitor is a green and environmentally friendly power source that stores energy through polarized electrolytes. It is a key support field and research content for the development of new energy and new materials in the national "Twelfth Five-Year Plan" and the "Twelfth Five-Year Plan" of Hubei Province. The research, development and successful promotion of the use of supercapacitors in our province can reduce oil consumption, reduce dependence on oil imports, and effectively solve the problems of urban exhaust pollution and lead-acid battery pollution. Petroleum resources are becoming increasingly scarce and the exhaust emissions of internal combustion engines that burn oil are increasingly polluting the environment. Research on new energy devices that replace internal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/84
CPCY02E60/13
Inventor 张道洪吴云龙苗孟河王秋凡李婷张俊珩程娟张爱清
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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