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Polyaniline/silver nanowire cotton fiber capacitor electrode material and preparation method

A technology for capacitor electrodes and silver nanowires, which is applied in hybrid capacitor electrodes, hybrid/electric double-layer capacitor manufacturing, plant fibers, etc., can solve the problems of preparing container electrode materials without the combination of polyaniline and silver nanowire cotton fibers, and achieve Effect of improving cycle performance

Active Publication Date: 2021-11-30
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] There is no precedent for combining polyaniline with silver nanowire cotton fibers to prepare container electrode materials

Method used

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Examples

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preparation example Construction

[0021] The invention relates to a polyaniline / silver nanowire cotton fiber capacitor electrode material and a preparation method thereof.

[0022] The polyaniline / silver nanowire cotton fiber capacitor electrode material of the present invention is made of the following raw materials: cotton fabric of 1 length unit×1 length unit; 0.5mol / L silver nanowire solution; γ-( 2,3-glycidyloxy) propyltrimethoxysilane KH-560; 1 mass part of NaCl; 0.500-3.500 mass parts of aniline; 22.5 mass parts of ammonium persulfate; 1.250-8.750 mass parts of hydrochloric acid; ionized water.

[0023] The present invention is based on the preparation method of polyaniline / silver nanowire cotton fiber capacitor electrode material, is realized by the following steps:

[0024] Step 1: Using silver nanowires and cotton fabrics as raw materials, obtain highly conductive silver nanowires / cotton fibers by dipping and controlling the number of dips. The specific steps are:

[0025] Cotton fabrics with a si...

Embodiment 1

[0031] The first step: preparation of silver nanowire / cotton fiber:

[0032] A cotton fabric with a size of 1cm×1cm was immersed in a solution of silver nanowires (0.5mol / L), dipped once and dried at 80°C, and a cotton fabric loaded with 9.8mg of silver nanowires was obtained;

[0033] The second step: preparation of epoxy-based silver nanowires / cotton fibers:

[0034] Dissolve 0.700 g of KH-560 and NaCl (1 g) in 100 g of deionized water, add dropwise 0.1 mol / L NaOH solution, and adjust its pH to 10. Add silver nanowires / cotton fibers to the solution at 60°C and react for 30 minutes, then dry at 80°C to obtain epoxy-based silver nanowire cotton fibers;

[0035] The third step: preparation of polyaniline / silver nanowire composite cotton fiber flexible capacitor electrode material:

[0036] Add 0.500g of aniline, 1.250g of hydrochloric acid, and epoxy-based silver nanowires / cotton fibers into 100mL of deionized water to react for 30min; dissolve 22.5g of ammonium persulfate in...

Embodiment 2

[0038] The first step: preparation of silver nanowire / cotton fiber:

[0039]A cotton fabric with a size of 1cm×1cm was immersed in a solution of silver nanowires (0.5mol / L), dipped three times and dried at 80°C to obtain a cotton fabric loaded with 12mg of silver nanowires;

[0040] The second step: preparation of epoxy-based silver nanowires / cotton fibers:

[0041] Dissolve 1.400 g of KH-560 and NaCl (1 g) in 100 g of deionized water, add dropwise 0.1 mol / L NaOH solution, and adjust its pH to 10. Adding silver nanowires / cotton fibers into the solution at 60°C for 30 minutes and then drying at 80°C to obtain epoxy-based silver nanowires / cotton fibers;

[0042] The third step: preparation of polyaniline / silver nanowire composite cotton fiber flexible capacitor electrode material:

[0043] Add 2.100g of aniline, 5.250g of hydrochloric acid, and epoxy-based silver nanowires / cotton fibers into 100mL of deionized water for 30min; dissolve 22.5g of ammonium persulfate in 50mL of d...

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Abstract

The invention relates to a polyaniline / silver nanowire cotton fiber capacitor electrode material and a preparation method, which endows the cotton fiber with good electrical conductivity, high capacitance and high cycle performance. The invention comprises the following steps: step 1: using silver nanowires and cotton fabrics as raw materials, and controlling the number of dipping times to obtain highly conductive silver nanowires / cotton fibers; step 2: adopting a mass percentage of 1%-5 % of γ-(2,3-glycidyloxy) propyltrimethoxysilane KH-560 to modify silver nanowires / cotton fibers, control the grafting rate of epoxy groups, and obtain epoxy-based silver nanowires / cotton fiber; step 3: with the aniline of 0.500-3.500 mass parts, the ammonium persulfate of 22.5 mass parts, the hydrochloric acid of 1.250-8.750 mass parts, epoxy-based silver nanowire / cotton fiber as raw material, by in-situ polymerization method, The polyaniline / silver nanowire cotton fiber flexible capacitor electrode material was obtained.

Description

Technical field: [0001] The invention relates to a fiber-based electrode material and a preparation method, in particular to a polyaniline / silver nanowire cotton fiber capacitor electrode material and a preparation method. Background technique: [0002] Textile fibers have sufficient toughness and strength, are cheap and easy to obtain, and have a wide range of applications, making them ideal for high-performance capacitor substrates. Fiber-based high-performance capacitor is a high-performance capacitor built on the surface of textile or fiber. It not only has the advantages of fast charging and discharging, lightness and flexibility, but also can be used to prepare flexible wearable energy storage devices, and can further expand the application range of smart textiles. . [0003] Nano-silver has excellent conductivity and is often used as a transparent electrode in electrochemical reactions. With the reduction of nanoscale, one-dimensional silver nanowires (AgNWs) not on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/24H01G11/30H01G11/40H01G11/48H01G11/86D06M15/61D06M13/513D06M11/83D06M101/06
CPCD06M11/83D06M13/513D06M15/61D06M2101/06H01G11/24H01G11/30H01G11/40H01G11/48H01G11/86
Inventor 高党鸽朱佳敏刘静静吕斌叶梦玉李随荣马建中
Owner SHAANXI UNIV OF SCI & TECH