Integrated supercapacitor and preparation method thereof

A supercapacitor, an integrated technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, hybrid capacitor electrolytes, etc., can solve the problems of easy slip between layers, poor device performance, high cost, etc., to reduce production costs , Reduce the interface resistance, the effect of high area ratio capacitance

Pending Publication Date: 2021-10-29
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Purpose of the invention: In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide an integrated supercapacitor and its preparation method. The integrated supercapacitor prepared by this method solves the problem that the traditional supercapacitor is easy to slip between layers when it is bent. The problem of shifting, high cost, and poor device performance after stretching or self-healing can realize the intrinsic stretchable self-healing of capacitors, and has good mechanical stability, low cost, and simple preparation process

Method used

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  • Integrated supercapacitor and preparation method thereof
  • Integrated supercapacitor and preparation method thereof
  • Integrated supercapacitor and preparation method thereof

Examples

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Effect test

Embodiment 1

[0038] (1) Preparation of polyacrylic hydrogel electrolytic films: first 2 ml acrylic solution (99% acrylic monomer AA specification, reagent source Sigma-Aldrich) plus 3 ml of deionized water, then mixed with 0.25 g 3- [N, N-dimethyl - [2- (2-methylpropylene) ethyl] ammonium] ammonium-1-sulfonic acid salt, 0.0234 g of iron chloride and ammonium sulfate (0.0624 g) After mixing, it is injected into a well-formed glass mold, which is placed in a 40 ° C oven for 12h. After the gelation is completed, the film is taken out, forming a thick hydrogel film of 1 mm, completely drying at room temperature. The 2m sulfuric acid solution was then immersed for 15 min to obtain a polyacrylic hydrogel electrolyte film.

[0039] (2) Preparation of conductive polymer-polyacrylic water gel composite film: at 40 ml of HCl (1 mol L -1 A solution of 146 μl (0.4 mmol) of aniline monomer was added, shake it uniform, and placed in a solution of 40 * 20 mm, a thickness of 1 mm, and then added 91.2 mg (0.27...

Embodiment 2

[0043] (1) Preparation of polyacrylic hydrogel electrolytic films: first 2 ml acrylic solution (99% acrylic monomer AA specification, reagent source Sigma-Aldrich) plus 3 ml of deionized water, then mixed with 0.25 g 3- [N, N-dimethyl - [2- (2-methylpropylene) ethyl] ammonium] ammonium-1-sulfonic acid salt, 0.0234 g of iron chloride and ammonium sulfate (0.0624 g) After mixing, it is injected into a well-formed glass mold, which is placed in a 40 ° C oven for 12h. After the gelation is completed, the film is taken out, forming a thick hydrogel film of 1 mm, completely drying at room temperature. The 2m sulfuric acid solution was then immersed for 15 min to obtain a polyacrylic hydrogel electrolyte film.

[0044] (2) Preparation of conductive polymer-polyacrylic water gel film: at 40 ml of HCl (1 mol L -1 The solution was added to a solution of 219 μL (0.6 mmol) of aniline monomer, shake it uniform, and placed in a solution of 40 * 20 mm, a thickness of 1 mm, and then added 91.2 mg...

Embodiment 3

[0048] (1) Preparation of polyacrylic hydrogel electrolytic films: first 2 ml acrylic solution (99% acrylic monomer AA specification, reagent source Sigma-Aldrich) plus 3 ml of deionized water, then mixed with 0.25 g 3- [N, N-dimethyl - [2- (2-methylpropylene) ethyl] ammonium] ammonium-1-sulfonic acid salt, 0.0234 g of iron chloride and ammonium sulfate (0.0624 g) After mixing, it is injected into a well-formed glass mold, which is placed in a 40 ° C oven for 12h. After the gelation is completed, the film is taken out, forming a thick hydrogel film of 1 mm, completely drying at room temperature. The 2m sulfuric acid solution was then immersed for 15 min to obtain a polyacrylic hydrogel electrolyte film.

[0049] (2) Preparation of conductive polymer-polyacrylic water gel film: at 40 ml of HCl (1 mol L -1 The solution was added to a solution of 292 μl (0.8 mmol) of aniline monomer, shake it uniform, and placed in a solution of 40 * 20 mm, a thickness of 1 mm, and then added 91.2 mg...

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Abstract

The invention discloses an integrated supercapacitor and a preparation method thereof. The integrated supercapacitor comprises a composite hydrogel film and two current collectors covering the upper surface and the lower surface of the composite hydrogel film; the composite hydrogel film is formed by integrating two electrodes and a hydrogel electrolyte film; the electrode is a conductive polymer, the conductive polymer is directly embedded into the hydrogel electrolyte layer through in-situ polymerization, an additional substrate is not needed, and an electrode and electrolyte interlocking integrated structure is formed; the hydrogel electrolyte is Fe <3+>-DMAPS (3-[N, N-dimethyl-[2-(2-methylpropane-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt)-polyacrylic acid; and the current collector is one or more of carbon cloth, graphene, a carbon nano tube or MXenes. The integrated supercapacitor prepared by the method has the advantages of excellent electrochemical performance, high intrinsic stretchability, efficient self-healing capability, good flexibility, simple structure, low cost and simple preparation process.

Description

Technical field [0001] The present invention relates to a integrated supercapacitor and a preparation method thereof, belonging to the field of energy storage materials and devices. Background technique [0002] It can wear electrons as emerging leading edge technology, which can be widely used in health monitoring and human-machine interaction. In order to enhance compatibility with the human body, user comfort and durability, wearable electronic equipment must have a high degree of stretchability and self-restoration. In order to meet the development needs of intelligent wearable electronic products, the development and matching of stretched, self-healing, high-capacity energy storage devices are key scientific issues that need to be solved. [0003] Supercapacitor is also known as an electrochemical capacitor, an energy storage element with high power density, high security, and high-power quality, in the field of new energy power systems, electric vehicles, wearable devices, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/56H01G11/48H01G11/28H01G11/84H01G11/86
CPCH01G11/56H01G11/48H01G11/28H01G11/84H01G11/86Y02E60/13
Inventor 赖文勇陈雅丽程涛汪锋高斯雅黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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