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Flexible thin-film electrode and preparation method and application thereof

A flexible thin film and electrode technology, which is applied in the field of electrodes and its preparation, achieves the effects of low cost, simple process and uniform growth

Active Publication Date: 2017-04-26
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on thin-film electrode materials based on ultra-thin carbon nitride nanosheets and carbon nanotubes has not been reported yet.

Method used

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  • Flexible thin-film electrode and preparation method and application thereof
  • Flexible thin-film electrode and preparation method and application thereof
  • Flexible thin-film electrode and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Add 0.02M potassium permanganate solution and 0.03M potassium manganate solution to 50mL of 0.25mg / mL carbon nitride aqueous phase dispersion respectively, stir at room temperature for 30 minutes, and centrifuge to wash An electroactive material composed of carbon nitride and manganese oxide is obtained. The composite of carbon nitride and manganese oxide is uniformly dispersed in water to form an electroactive material dispersion with a concentration of 0.1 mg / mL.

[0039] 1g of carbon nanotubes were purified in advance at 500°C for 1 hour, then 23mL of concentrated sulfuric acid was added and stirred at room temperature for 20 hours, then 350mg of sodium nitrate and 1g of potassium permanganate were added, stirred at 40°C for 2 hours and then 10mL 30% was added The oxidized modified carbon nanotubes are obtained by centrifugal washing with hydrogen peroxide water, which is dispersed in water to obtain an aqueous solution of carbon nanotubes.

[0040] Take a carbon nanotub...

Embodiment 2

[0045] Add 0.02M potassium permanganate solution and 0.03M potassium manganate solution to 50mL of 0.25mg / mL carbon nitride aqueous phase dispersion respectively, stir at room temperature for 30 minutes, and centrifuge to wash An electroactive material composed of carbon nitride and manganese oxide is obtained. The composite of carbon nitride and manganese oxide is uniformly dispersed in water to form an electroactive material dispersion with a concentration of 1 mg / mL.

[0046] 1g of carbon nanotubes were purified in advance at 500°C for 1 hour, then 23mL of concentrated sulfuric acid was added and stirred at room temperature for 20 hours, then 350mg of sodium nitrate and 1g of potassium permanganate were added, stirred at 40°C for 2 hours and then 10mL 30% was added The oxidized modified carbon nanotubes are obtained by centrifugal washing with hydrogen peroxide water and dispersed in water.

[0047] Take a carbon nanotube aqueous solution with a concentration of 1 mg / mL, mix th...

Embodiment 3

[0049] Add 0.02M potassium permanganate solution and 0.03M potassium manganate solution to 50mL of 0.25mg / mL carbon nitride aqueous phase dispersion respectively, stir at room temperature for 30 minutes, and centrifuge to wash An electroactive material composed of carbon nitride and manganese oxide is obtained. The composite of carbon nitride and manganese oxide is uniformly dispersed in water to form an electroactive material dispersion with a concentration of 0.1 mg / mL.

[0050] 1g of carbon nanotubes were purified in advance at 500°C for 1 hour, then 23mL of concentrated sulfuric acid was added and stirred at room temperature for 20 hours, then 350mg of sodium nitrate and 1g of potassium permanganate were added, stirred at 40°C for 2 hours and then 10mL 30% was added The oxidized modified carbon nanotubes are obtained by centrifugal washing with hydrogen peroxide water and dispersed in water.

[0051] Take the carbon nanotube aqueous solution with a concentration of 0.1 mg / mL, ...

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Abstract

The invention provides a flexible thin-film electrode, which comprises an ultrathin porous carbon nitride nanosheet and a carbon nanotube, wherein manganese oxide is loaded on the ultrathin porous carbon nitride nanosheet as an electroactive material; due to the ultrathin porous carbon nitride nanosheet, the flexible thin-film electrode has a multi-channel structure; and the carbon nanotube is taken as a conductive support and is also taken as a mechanical support, so that the flexible thin-film electrode has a three-dimensional conductive network structure. The invention further provides a preparation method and an application of the flexible thin-film electrode. The method provided by the invention is simple in operation and low in cost. A thin film prepared by the method has the three-dimensional conductive network structure and the multi-channel structure, has good flexibility and excellent electrochemical property, and can be widely used for a high-efficiency energy storage device.

Description

Technical field [0001] The invention relates to an electrode and a preparation method and application thereof, in particular to a flexible membrane electrode and a preparation method and application thereof. Background technique [0002] With the increasing demand for portable and wearable electronic devices, the development of flexible energy storage devices has become a research hotspot in the field of new energy. Among them, as the most important component of energy storage devices, electrode materials have become the research focus of scientific researchers. For high-performance flexible energy storage devices, the development of thin film electrodes with superior flexibility and conductivity has received extensive attention. [0003] At present, the preparation methods of flexible film electrodes mainly focus on coating method, in-situ growth method and vacuum filtration method. The coating method and the in-situ growth method significantly reduce the energy density and powe...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/50H01M4/62H01G11/24H01G11/30H01G11/36H01G11/46H01G11/86
CPCH01G11/24H01G11/30H01G11/36H01G11/46H01G11/86H01M4/362H01M4/50H01M4/62H01M4/625Y02E60/10
Inventor 高濂施敏杰宋雪峰张鹏
Owner SHANGHAI JIAO TONG UNIV
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