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Transparent flexible zinc ion hybrid capacitor with electric field sensing function and preparation method thereof

A hybrid capacitor and electric field sensing technology, which is applied in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitors, electrolytic capacitors, etc., can solve the problems of high energy consumption and high production cost, and achieve a simple preparation process, low cost, and high transmission. rate effect

Active Publication Date: 2021-10-01
ANHUI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the scarcity of indium and the high temperature required in the ITO production process lead to high production costs and high energy consumption

Method used

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  • Transparent flexible zinc ion hybrid capacitor with electric field sensing function and preparation method thereof
  • Transparent flexible zinc ion hybrid capacitor with electric field sensing function and preparation method thereof
  • Transparent flexible zinc ion hybrid capacitor with electric field sensing function and preparation method thereof

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preparation example Construction

[0031] A method for preparing a transparent flexible zinc-ion hybrid capacitor with an electric field sensing function according to an embodiment of the present invention includes the following steps:

[0032] (1) prepare MXene nano sheet solution;

[0033] (2) Prepare a hydrophilic PET film;

[0034] (3) Preparation of transparent MXene cathode;

[0035] (4) Prepare a Zn negative electrode with a symmetrical U-shaped structure;

[0036] (5) Preparation of ZnSO 4 -PAM hydrogel solid electrolyte;

[0037] (6) Encapsulation of transparent and flexible zinc-ion hybrid capacitors.

Embodiment 1

[0039] A kind of preparation method of the transparent flexible zinc ion hybrid capacitor with electric field sensing function of the present invention comprises the following steps:

[0040] (1) Preparation of MXene nanosheet solution.

[0041] Add 1g of LiF to 20ml of HCL solution (9M), and magnetically stir for 10min; put 1g of Ti 3 AlC 2 Slowly add the powder into the mixed solution, and stir magnetically for 30 minutes; put the obtained mixed solution in a water bath at 30°C and stir magnetically for 24 hours; then transfer the mixed solution to a centrifuge tube, centrifuge at 3000rpm for 5 minutes, take out the supernatant, and resuspend the precipitate Disperse in deionized water, centrifuge repeatedly until the pH value is about 6; finally transfer the solution to a gas washing bottle, sonicate in an argon environment for 3 minutes, and centrifuge at a speed of 2000rpm for 20 minutes, and the supernatant taken out is MXene nanosheets Solution, the concentration is a...

Embodiment 2

[0054] A kind of preparation method of the transparent flexible zinc ion hybrid capacitor with electric field sensing function of the present invention comprises the following steps:

[0055] (1) Preparation of MXene nanosheet solution.

[0056] Add 1g of LiF to 20ml of HCL solution (9M), and magnetically stir for 10min; put 1g of Ti 3 AlC 2 Slowly add the powder into the mixed solution, and stir magnetically for 30 minutes; put the obtained mixed solution in a water bath at 32°C and stir magnetically for 24 hours; then transfer the mixed solution to a centrifuge tube, centrifuge at 3200rpm for 5 minutes, take out the supernatant, and resuspend the precipitate Disperse in deionized water, centrifuge repeatedly until the pH value is about 6; finally transfer the solution to a gas washing bottle, sonicate in an argon environment for 4 minutes, and centrifuge at a speed of 2200rpm for 25 minutes, and the supernatant taken out is MXene nanosheets Solution, the concentration is a...

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Abstract

The invention discloses a transparent flexible zinc ion hybrid capacitor with an electric field sensing function and a preparation method thereof. The transparent flexible zinc ion hybrid capacitor is mainly composed of an MXene positive electrode, a Zn negative electrode and ZnSO4-PAM (polyacrylamide) hydrogel electrolyte between the positive electrode and the negative electrode. The preparation method comprises the following steps of S1, synthesizing an MXene (Ti3C2Tx) nanosheet solution, S2, preparing a PET (polyethylene glycol terephthalate) film with hydrophilicity, S3, preparing a transparent MXene positive electrode, S4, preparing a Zn negative electrode with a symmetrical U-shaped structure, S5, preparing a ZnSO4-PAM (Polyacrylamide) hydrogel electrolyte, and S6, packaging the transparent flexible zinc ion hybrid capacitor. The transparent flexible zinc ion hybrid capacitor provided by the invention has the advantages of high capacitance, stable electric field sensing performance, high transparency, excellent flexibility, high safety and the like, and meanwhile, the preparation process is simple and the cost is low.

Description

technical field [0001] The invention belongs to the field of transparent hybrid capacitors, and provides a transparent flexible zinc ion hybrid capacitor with electric field sensing function and a preparation method thereof. Background technique [0002] The rapid development of wearable electronic devices has put forward higher requirements for the performance and functions of its energy supply components. At present, supercapacitors and batteries are the mainstream energy supply units. Supercapacitors have fast charging and discharging rates, high power density, and long service life, but low energy density. On the contrary, batteries have high energy density but low output power density and poor cycle stability. In order to combine the advantages of both, the researchers proposed the concept of hybrid capacitors. Among them, low-cost and high-safety zinc-ion hybrid capacitors have received more and more attention in recent years. Nevertheless, current Zn-ion hybrid ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/04H01G11/84
CPCH01G11/04H01G11/84Y02E60/13H01G11/28H01G11/30H01G11/56
Inventor 王思亮林洋余其涛李利豪曾玮郭小辉
Owner ANHUI UNIVERSITY