Method for preparing transparent flexible supercapacitor

A supercapacitor, transparent technology, applied in the manufacture of hybrid/electric double-layer capacitors, etc., can solve the problems of low energy density and high brittleness of transparent substrate materials, achieve good flexibility, improve high power output performance, and solve the problem of brittleness. Effect

Active Publication Date: 2017-10-17
HEBEI UNIV OF TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of high brittleness and low energy density of the transparent base material used in the transparent flexible supercapacitor existing in the current technology, and proposes a metal nanomesh transparent electrode prepared by spin coating as a current collector, and through deposition Carbon-containing materials such as graphene can be deposited on the PET pole piece with controllable light transmittance and uniformity, and finally a transparent flexible electrode is prepared.

Method used

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  • Method for preparing transparent flexible supercapacitor
  • Method for preparing transparent flexible supercapacitor
  • Method for preparing transparent flexible supercapacitor

Examples

Experimental program
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Effect test

Embodiment 1

[0034] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on the surface of a layer of 10cm x 10cm PET substrate with a homogenizer. Heating for 5 minutes under the same conditions, a transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0035] (2) in the graphene of getting 25mg and 40ml mixed solution, (the composition of mixed solution is the concentrated sulfuric acid and the concentrated nitric acid, and the volume ratio is the concentrated sulfuric acid: concentrated nitric acid 3:1; The concentration of the concentrated sulfuric acid is mass fraction 98%, concentrated nitric acid The concentration is 65% of the mass fraction) and mixed, stirred at 70°C for 4h, then the mixed solution was suction filtered, and the solution after suction filtration was subjected to dialysis (that is, the above mixed liquid was poured into a dialysis bag, and then the dialysis bag...

Embodiment 2

[0041] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on the surface of a layer of 10cm x 10cm PET substrate with a homogenizer. Heating for 5 minutes under the same conditions, a transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0042] (2) in the graphene of getting 25mg and 40ml mixed solution, (the composition of mixed solution is the concentrated sulfuric acid and the concentrated nitric acid, and the volume ratio is the concentrated sulfuric acid: concentrated nitric acid 3:1; The concentration of the concentrated sulfuric acid is mass fraction 98%, concentrated nitric acid The concentration is 65% of the mass fraction) and mixed, stirred at 70°C for 4h, then the mixed solution was suction filtered, and the solution after suction filtration was subjected to dialysis (that is, the above mixed liquid was poured into a dialysis bag, and then the dialysis bag...

Embodiment 3

[0047] (1) Spin-coat 0.5mg / ml nano-silver wire solution (10ml) on the surface of a layer of 10cmx10cm PET substrate with a homogenizer. After heating for 5 minutes, a transparent and flexible current collector whose surface is covered with a network of metal nanowires is prepared, and the thickness of the coating is 100 nm.

[0048] (2) in the graphene of getting 25mg and 40ml mixed solution, (the composition of mixed solution is the concentrated sulfuric acid and the concentrated nitric acid, and the volume ratio is the concentrated sulfuric acid: concentrated nitric acid 3:1; The concentration of the concentrated sulfuric acid is mass fraction 98%, concentrated nitric acid The concentration is 65% of the mass fraction) and mixed, stirred at 70°C for 4h, then the mixed solution was suction filtered, and the solution after suction filtration was subjected to dialysis (that is, the above mixed liquid was poured into a dialysis bag, and then the dialysis bag was immersed in deion...

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Abstract

The invention relates to a method for preparing a transparent flexible supercapacitor. According to the method, with a metal nanowire solution as a raw material, preparation is carried out on the surface of a transparent flexible substrate material by a spin-coating method to obtain a transparent flexible collector with the surface covered with a metal nano wire network; on the basis of a deposition method, carbon-included materials like graphene are deposited on PET polar pieces in a light transmittance and uniformity controllable manner; and then the two polar pieces are rolled to obtain a double-electricity-layer transparent flexible super capacitor with a sandwich structure. The technical route is simple; the obtained active material has an open three-dimensional (multi-stage) structure; the internal resistance of the supercapacitor system is reduced; the high light transmittance is kept; and the energy and power density are optimized.

Description

technical field [0001] The invention relates to a method for preparing a transparent flexible supercapacitor, specifically belonging to the field of supercapacitors. Background technique [0002] "Transparent and flexible" is a promising direction of change for the development of future consumer electronics products, which can meet people's more requirements for multi-functionality and aesthetic appearance of electronic products. As an indispensable and important component, transparent and flexible electronic devices have potential commercial impact and huge market value, and have become one of the research hotspots in the fields of materials, electronics, and communication. However, due to the stages and limitations of technology development, it is still a great challenge to assemble a fully transparent and flexible electronic product. For example, the next generation of transparent and flexible smartphones, highly integrated smart glasses, etc., put forward high requireme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/84
CPCY02E60/13H01G11/84
Inventor 王恭凯钟禹翔张昕彭会芬
Owner HEBEI UNIV OF TECH
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