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A method for activating commercial carbon fiber cloth

A technology of carbon fiber cloth and processor, applied in the field of commercial carbon cloth activation, can solve the problems of material comprehensive performance decline, fiber body damage, cumbersome processing technology, etc., and achieve the effect of low cost, short time consumption and simple process

Active Publication Date: 2021-03-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, almost all methods require the adjustment of reagent or atmosphere ratio and inert gas protection. The treatment process is relatively cumbersome, the cost is high, and the fiber body is easy to be damaged, which makes the overall performance of the material decline.

Method used

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  • A method for activating commercial carbon fiber cloth
  • A method for activating commercial carbon fiber cloth
  • A method for activating commercial carbon fiber cloth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Select size 2.5×2.5cm 2 1. Commercial carbon cloth with a thickness of 0.35 mm is used as raw material. After the surface of the carbon cloth is cleaned with absolute ethanol, it is washed with deionized water ultrasonically and dried.

[0022] (2) Arranging the clean carbon obtained in step (1) in a muffle furnace, and performing an activation treatment for 1 hour under an ambient air atmosphere and a temperature of 400° C.;

[0023] (3) After the reaction is finished, the activated carbon cloth is obtained.

[0024] The field emission scanning electron micrographs of the obtained product before and after are respectively as follows: figure 1 , 2 As shown, the surface morphology observation results show that the surface of commercial carbon cloth fibers without activation treatment is smooth, and after activation treatment, the surface of carbon cloth fibers has a flat bubble-like rough structure. Electrochemical tests were carried out on the prepared activated ...

Embodiment 2

[0026] (1) Select size 2.5×2.5cm 2 1. Commercial carbon cloth with a thickness of 0.35 mm is used as raw material. After the surface of the carbon cloth is cleaned with absolute ethanol, it is washed with deionized water ultrasonically and dried.

[0027] (2) Arranging the clean carbon obtained in step (1) in a muffle furnace, and performing an activation treatment for 1 hour under an ambient air atmosphere and a temperature of 450° C.;

[0028] (3) After the reaction is finished, the activated carbon cloth is obtained.

[0029] Electrochemical tests were carried out on the prepared activated commercial carbon cloth, and the results were as follows: Figure 4 , 5 shown. The product was charged and discharged under different discharge current densities, 1mA﹒ cm -2 Under the discharge current density, the specific capacitance is 642.2mF. cm -2 , 50mA﹒ cm -2 Under the discharge current density, the area specific capacitance is still 538mF. cm -2 ; In different scan rat...

Embodiment 3

[0031] (1) Select size 2.5×2.5cm 2 1. Commercial carbon cloth with a thickness of 0.35 mm is used as raw material. After the surface of the carbon cloth is cleaned with absolute ethanol, it is washed with deionized water ultrasonically and dried.

[0032] (2) Arranging the clean carbon obtained in step (1) in a muffle furnace, and performing an activation treatment for 2 hours under an ambient air atmosphere and a temperature of 450° C.;

[0033] (3) After the reaction is finished, the activated carbon cloth is obtained.

[0034] Electrochemical tests were carried out on the prepared activated commercial carbon cloth, and the results were as follows: Figure 4 , 5 shown. The product was charged and discharged under different discharge current densities, 1mA﹒ cm -2 Under the discharge current density, the specific capacitance is 1100.6mF. cm -2 , 50mA﹒ cm -2 Under the discharge current density, the area specific capacitance is still 780mF. cm -2 ; In different scan rat...

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Abstract

The invention discloses a method for activating and treating commercial carbon fiber cloth. The steps include: using commercial carbon cloth as a raw material, arranging the cleaned carbon in a muffle furnace, and activating it in an air atmosphere at 400-500°C for a certain period of time. After that, activated commercial carbon cloth can be obtained. For the first time, the present invention uses the atmospheric environment to directly activate the carbon cloth without any inert gas protection, atmosphere and solution treatment. The activation process is environmentally friendly and controllable, the operation is extremely simple, and the production cost is low, which is suitable for large-scale industrial production. The activated flexible commercial carbon cloth materials can be directly used as electrodes or current collectors of wearable new batteries or flexible supercapacitors, and are expected to be used as catalyst or adsorbent carriers, oxidative degradation materials, desulfurization or air purification materials, etc. It has been applied in the fields of electronic devices, energy and environment.

Description

technical field [0001] The present invention relates to the field of commercial carbon cloth activation, in particular to a process for activating commercial carbon fiber cloth (referred to as 'commercial carbon cloth'), especially a method for activating commercial carbon cloth that can be applied in large-scale industrial production. Background technique [0002] With the development of science and technology, people's demand for wearable electronic devices is unprecedentedly high, and it is particularly important to develop flexible energy storage devices that can supply energy for such electronic devices. As a new type of energy storage device, supercapacitors have both the advantages of traditional capacitors and secondary batteries, and have broad and far-reaching application prospects in various fields. Flexible supercapacitors have higher energy density, faster charge and discharge speed, and longer cycle stability. They have attracted the attention of many scholars ...

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): C01B32/312
CPCC01P2004/03C01P2006/40
Inventor 顾伊杰吴进明
Owner ZHEJIANG UNIV