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Solid flexible supercapacitor based on metal fabric and its preparation method and application

A technology for supercapacitors and metal fabrics, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, hybrid capacitor electrolytes, etc., can solve the problems of difficult supercapacitor devices, high electrolyte toxicity, strong corrosion, etc. The effect of electrochemical characteristics, simple preparation process and mild reaction conditions

Active Publication Date: 2018-12-25
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These supercapacitors have two major disadvantages that limit their use in portable electronic devices
First, most electrolytes are highly toxic and corrosive, so high-cost packaging materials and techniques are usually used in equipment manufacturing to avoid electrolytes that may leak; second, due to packaging issues, it is difficult to use liquid electrolytes to manufacture small, Flexible supercapacitor devices

Method used

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  • Solid flexible supercapacitor based on metal fabric and its preparation method and application
  • Solid flexible supercapacitor based on metal fabric and its preparation method and application
  • Solid flexible supercapacitor based on metal fabric and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1. Cut the metal fabric into electrodes with a size of 1cm × 5cm, use ethanol and deionized water to sonicate several times, and place it in an oven to dry for later use.

[0041] 2. Use acetonitrile as a solution to prepare an electropolymerization solution. The specific formula is as follows:

[0042] Acetonitrile: 50g

[0043] Monomer: 0.5g

[0044] Dopant: 5g

[0045] The monomer is 3,4-ethylenedioxythiophene.

[0046] The dopant is polystyrene sulfonate.

[0047] 3. Use acetone as a solvent to prepare a gel-like electrolyte. The specific formula is as follows:

[0048] Acetone: 50g

[0049] Polymer: 25g

[0050] Ionic liquid: 15g

[0051] The polymer is poly(vinylidene fluoride-co-hexafluoropropylene).

[0052] The ionic liquid is 1-butyl-3-methylimidazolium tetrafluoroborate.

[0053] 4. The poly(3,4-ethylenedioxythiophene) in the fabric electrode material was prepared by electrodeposition: the metal fabric was used as the working electrode, the glass sli...

Embodiment 2

[0059] 1. Cut the metal fabric into electrodes with a size of 1cm × 5cm, use ethanol and deionized water to sonicate several times, and place it in an oven to dry for later use.

[0060] 2. Use acetonitrile as a solution to prepare an electropolymerization solution. The specific formula is as follows:

[0061] Acetonitrile: 50g

[0062] Monomer: 1g

[0063] Dopant: 2.5g

[0064] The monomer is 3,4-ethylenedioxythiophene.

[0065] The dopant is lithium perchlorate trihydrate.

[0066] 3. Use acetone as a solvent to prepare a gel-like electrolyte. The specific formula is as follows:

[0067] Acetone: 50g

[0068] Polymer: 20g

[0069] Ionic liquid: 10g

[0070] The polymer is poly(vinylidene fluoride-co-hexafluoropropylene).

[0071] The ionic liquid is 1-butyl-3-methylimidazolium tetrafluoroborate.

[0072] 4. The poly(3,4-ethylenedioxythiophene) in the fabric electrode material was prepared by electrodeposition: the metal fabric was used as the working electrode, the ...

Embodiment 3

[0076] 1. Cut the metal fabric into electrodes with a size of 1cm × 5cm, use ethanol and deionized water to sonicate several times, and place it in an oven to dry for later use.

[0077] 2. Use acetonitrile as a solution to prepare an electropolymerization solution. The specific formula is as follows:

[0078] Acetonitrile: 50g

[0079] Monomer: 2.5g

[0080] Dopant: 5g

[0081] The monomer is 3,4-ethylenedioxythiophene.

[0082] The dopant is lithium chloride.

[0083] The other dopants are other functional dopants.

[0084] 3. Use acetone as a solvent to prepare a gel-like electrolyte. The specific formula is as follows:

[0085]

[0086] The polymer is poly(vinylidene fluoride-co-hexafluoropropylene).

[0087] The ionic liquid is 1-butyl-3-methylimidazolium tetrafluoroborate.

[0088] 4. The poly(3,4-ethylenedioxythiophene) in the fabric electrode material was prepared by electrodeposition: the metal fabric was used as the working electrode, the glass slide was us...

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Abstract

The invention provides a metal fabric based solid and flexible supercapacitor as well as a preparation method and an application thereof, and relates to supercapacitors. The metal fabric based solid and flexible supercapacitor comprises two electrodes made of the same material as well as an electrolyte layer applied between the two electrodes. The preparation method comprises the following steps: 1), poly (3, 4-ethylenedioxythiophene) is deposited on metal fabric through electro-deposition, and a metal fabric / poly (3, 4-ethylenedioxythiophene) compound is obtained and taken as the electrode material; 2), the gap and the surface of the metal fabric / poly (3, 4-ethylenedioxythiophene) compound are coated with a gelatinous electrolyte material of poly (vinylidene fluoride-co-hexafluoropropylene) / 1-butyl-3-methylimidazolium tetrafluoroborate, and the electrodes with the electrolyte are obtained; 3), the two electrodes provided with the electrolyte and obtained from the step 2) are assembled together to obtain the metal fabric based solid and flexible supercapacitor. The metal fabric based solid and flexible supercapacitor can be applied to preparation of energy storage equipment for flexible wearable electronic devices.

Description

technical field [0001] The present invention relates to a supercapacitor, in particular to a metal fabric-based solid flexible supercapacitor and its preparation method and application. Background technique [0002] With the rapid growth of the global population and economy, people's demand for energy continues to increase. However, traditional fossil fuels are unsustainable energy sources. Therefore, in order to obtain renewable energy sources, such as solar energy, wind energy, and tidal energy, scientists around the world have made considerable efforts to develop new technologies. One of the major current challenges is that these renewable energy sources are intermittent and severely constrained by natural environmental conditions. The regional imbalance of these renewable resources is another major problem we face. Therefore, developing high-efficiency, stable, and environmentally friendly energy storage devices is crucial to promote the development of renewable energy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/48H01G11/56H01G11/84
CPCY02E60/13
Inventor 李磊余剑辉
Owner XIAMEN UNIV