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Cotton fabric-based flexible electrode material and preparation method thereof

An electrode material, cotton fabric technology, applied in cable/conductor manufacturing, hybrid capacitor electrode, hybrid/electric double layer capacitor manufacturing and other directions, can solve the problem that the electrical conductivity cannot be significantly improved, the amount of graphene adsorption is small, and the feel of the fabric is affected. and other problems, to achieve the effect of simple and novel preparation method

Active Publication Date: 2019-06-25
NANTONG TEXTILE & SILK IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the technology of using graphene to treat fabrics as electrode materials for supercapacitors, the impregnation method or electrophoretic deposition technology is usually used to obtain electrode materials after drying and reduction, but this method has certain disadvantages, such as graphene adsorption is less , the electrical conductivity cannot be significantly improved, and increasing the adsorption of graphene on the fabric by adding cross-linking agents or adhesives will seriously affect the feel of the fabric

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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  • Cotton fabric-based flexible electrode material and preparation method thereof
  • Cotton fabric-based flexible electrode material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0035] This embodiment provides a cotton fabric-based flexible electrode material for supercapacitors and a preparation method thereof. The specific steps are as follows:

[0036] Cotton / MnO 2 Preparation of deposited fabric: Add pure cotton fabric to 0.8wt% sodium hydroxide solution with a mass ratio of 1:10 for activation for 15 minutes, and remove excess sodium hydroxide solution through the activated cotton fabric through a pressing roller, and the pressure of the pressing roller is 0.2MPa; configure 5mmol / L manganese acetate solution, immerse the activated cotton fabric in the manganese acetate solution at a mass ratio of 1:10 for 5 minutes; configure 8mmol / L potassium permanganate solution to mix with manganese acetate 1:1 Then add it to the manganese acetate solution, treat it for 2 hours, take out the reacted cotton fabric and wash it to neutrality, and then get pure cotton / MnO 2 Deposition fabric.

[0037] Using natural flake graphite as raw material, graphene oxide...

Embodiment 2

[0042] This embodiment provides a cotton fabric-based flexible electrode material for supercapacitors and a preparation method thereof. The specific steps are as follows:

[0043] Cotton / MnO 2 Preparation of deposited fabric: add pure cotton fabric to 1wt% sodium hydroxide solution at a mass ratio of 1:12 for activation for 10 minutes, and remove excess sodium hydroxide solution from the activated cotton fabric through a press roller, the pressure of the press roller is 0.25MPa ; Configure 4mmol / L manganese acetate solution, and soak the activated cotton fabric in the manganese acetate solution with a mass ratio of 1:13 for 6 minutes; Manganese acetate solution, treated for 5 hours, the cotton fabric after the reaction was taken out and washed to neutrality to obtain pure cotton / MnO 2 Deposition fabric.

[0044] Using natural flake graphite as raw material, graphene oxide was prepared by the improved hummers method. First, it was centrifuged once, then washed with water and ...

Embodiment 3

[0049] This embodiment provides a cotton fabric-based flexible electrode material for supercapacitors and a preparation method thereof. The specific steps are as follows:

[0050] Cotton / MnO 2 Preparation of deposition fabric: add pure cotton fabric to 0.5wt% sodium hydroxide solution with a mass ratio of 1:8 to activate for 30 minutes, and remove excess sodium hydroxide solution through the activated cotton fabric through a pressing roller, and the pressure of the pressing roller is 0.16MPa; configure 6mmol / L manganese acetate solution, immerse the activated cotton fabric in the manganese acetate solution with a mass ratio of 1:9 for 7 minutes; configure 6mmol / L potassium permanganate solution to mix with manganese acetate 1:1 Then add it to manganese acetate solution, treat it for 3 hours, take out the reacted cotton fabric and wash it to neutrality, and then get pure cotton / MnO 2 Deposition fabric.

[0051] Using natural flake graphite as raw material, graphene oxide was ...

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Abstract

The invention relates to a cotton fabric-based flexible electrode material preparation method. Cotton fabric is activated in a sodium hydroxide aqueous solution and is then soaked in a manganese acetate aqueous solution; a potassium permanganate aqueous solution is then added for processing, washing to neutral is performed, and cotton fabric deposited with manganese dioxide is obtained; the abovefabric is then soaked in a graphene oxide hydrosol for processing; and finally, a thermal reduction process is adopted to reduce the graphene oxide on the surface of the cotton fabric to graphene, anda cotton fabric-based flexible electrode material is obtained. The method provided in the invention overcomes shortcomings in the prior art, and the prepared cotton fabric-based flexible electrode material has breathable, flexible and stretchable characteristics of the cotton fabric- and can also keep good electrochemical performance in a stretching state.

Description

technical field [0001] The invention relates to the technical field of electrode materials, in particular to a cotton fabric-based flexible electrode material and a preparation method thereof. Background technique [0002] Wearable electronic products can be obtained by implanting electronic components in fabrics, so that clothing has more electronic information functions on the basis of maintaining comfort. Wearable electronics have promising applications in continuous personal health monitoring devices, high-performance sportswear, and flexible displays. However, all electronic products need power supply, so energy conversion or storage equipment with the unique properties of textiles such as light weight, flexibility, breathability and stretchability becomes necessary. [0003] As an emerging energy storage device, supercapacitors have many advantages such as high specific capacity, high power density, long cycle life, high stability and environmental friendliness. It h...

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 Patents(China)
IPC IPC(8): H01G11/86H01G11/24H01G11/36H01G11/46H01B5/14H01B13/00B82Y30/00
CPCB82Y30/00H01B5/14H01B13/0026H01G11/24H01G11/36H01G11/46H01G11/86Y02E60/13
Inventor 李育洲邢铁玲卢神州陈国强
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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