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Transparent flexible supercapacitor fabric and preparation method thereof

A supercapacitor and fabric technology, applied in the field of energy storage devices, can solve the problems of opaque electrodes, thick fabric electrodes, general electrical conductivity, etc., and achieve the effect of good transparency and good flexibility

Inactive Publication Date: 2014-12-24
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these capacitor fabrics are simple to prepare and low in cost, the fabric electrodes used are relatively thick and have relatively general conductivity, and the electrodes are opaque, which has certain limitations in practical applications.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Transparent flexible supercapacitor fabric and preparation method thereof
  • Transparent flexible supercapacitor fabric and preparation method thereof
  • Transparent flexible supercapacitor fabric and preparation method thereof

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Embodiment Construction

[0035] Oriented carbon nanotube fibers are prepared according to the prior art, that is, carbon nanotube arrays are prepared by so-called chemical vapor deposition, and then corresponding fibers are prepared by dry spinning. Specifically, in a quartz tube furnace, the Fe (1.2 nm) / Al 2 o 3 (3 nm) silicon wafer as catalyst, ethylene gas as carbon source, Ar and H 2 The mixed gas is used as the carrier gas, and the temperature is raised to 740 o C, carbon nanotubes start to grow, and the growth time is controlled at 10-20 min. After obtaining the spinnable carbon nanotube array, use a blade to pull out the carbon nanotube film from the edge of the carbon nanotube array, superimpose 5-15 layers of carbon nanotube film, and then use a motor to rotate and twist at a speed of 1000 rpm to obtain a carbon nanotube film. Nanotube fibers, and finally carbon nanotube fibers are woven into fabrics.

[0036] The polyaniline in the fabric electrode material was prepared by electrodeposi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention belongs to the technical field of energy storage devices, and particularly relates to a transparent flexible supercapacitor fabric and a preparation method of the transparent flexible supercapacitor fabric. According to the method, oriented carbon nano tube fiber is woven into a carbon nano tube fiber fabric, a carbon nano tube / polyaniline composite fabric is obtained by depositing polyaniline on the carbon nano tube fiber fabric through an electrochemical deposition method, the surface of the composite fabric is coated with one layer of polyvinyl alcohol / phosphoric acid (PVA / H3PO4) gel electrolyte, and finally the product is assembled with the other electrode with the same structure and material so that the supercapacitor fabric can be obtained. Compared with a traditional planar capacitor, the supercapacitor fabric has the advantages of being light in weight, capable of being woven and the like; compared with other fabric capacitors, the supercapacitor fabric has the advantages of being transparent and the like; compared with a fiber supercapacitor, the supercapacitor fabric is higher in large-scale weaving capacity, and thus the supercapacitor fabric has very good application prospects.

Description

technical field [0001] The invention belongs to the technical field of energy storage devices, and in particular relates to a transparent and flexible supercapacitor fabric and a preparation method thereof. Background technique [0002] Wearable and portable electronic devices are becoming more and more important in today's life, and will gradually become the dominance of life in the future. Therefore, there is an urgent need to develop corresponding energy storage devices to drive these electronic devices, such as supercapacitors with high power density. To meet the wearable demands, these supercapacitors must be lightweight, flexible, weavable, and high-performance. However, some of the current research on supercapacitors is mostly based on some heavier and harder flat materials, which cannot meet the above requirements. Recently, some research works have fabricated wire-like supercapacitors through fiber electrodes. Compared with the traditional planar structure, wire-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/26H01G11/38
CPCY02E60/13
Inventor 彭慧胜潘绍武邓珏
Owner FUDAN UNIV
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