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Mini-sized supercapacitor with high flexibility and high transparency and large-scale preparation method of mini-sized supercapacitor

A supercapacitor, transparency technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of inability to prepare transparent flexible energy storage devices, low power density, etc., and achieve convenient, easy, high flexibility and high Transparency, improving energy and power density, enhancing the effect of pseudocapacitive capacity

Inactive Publication Date: 2015-09-30
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low electronic conductivity of microelectrode materials makes it difficult to work in a fast charge-discharge process, implying a low power density
At the same time, due to technical limitations, it is not yet possible to prepare transparent and flexible energy storage devices that people need in daily life.

Method used

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  • Mini-sized supercapacitor with high flexibility and high transparency and large-scale preparation method of mini-sized supercapacitor
  • Mini-sized supercapacitor with high flexibility and high transparency and large-scale preparation method of mini-sized supercapacitor
  • Mini-sized supercapacitor with high flexibility and high transparency and large-scale preparation method of mini-sized supercapacitor

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 Shown, have the preparation method of highly flexible and transparent miniature supercapacitor, it comprises the following steps:

[0026] 1) Coat the photoresist LOR3A on the PET substrate with a coater at a speed of 4000rpm, and spin coating for 40s, then bake the glue with an electric heating plate at 185°C for 5min, and then coat the photoresist S1805 on the surface at a speed of 40s 4000rpm, spin-coating time is 40s, and then use a hot plate to bake the glue at 115°C for 5min;

[0027] 2) Using ultraviolet lithography technology to prepare interdigitated structures with a width of 80 microns;

[0028] 3) Metal Thermal Evaporation (PVD): Use a thermal evaporation coater to vaporize metal electrodes Cr / Au (5nm / 20nm) on the substrate to form interdigitated electrodes;

[0029] 4) Preparation of electrospinning liquid: first prepare polyvinyl alcohol into a hydrogel with a concentration of 10% by mass, then disperse the polyaniline / carbon composite m...

Embodiment 2

[0037] There is the preparation method of micro-supercapacitor with high softness and transparency, it comprises the steps:

[0038] 1) Coat the photoresist LOR3A on the PET substrate with a coater at a speed of 4000rpm, and spin coating for 40s, then bake the glue with an electric heating plate at 185°C for 5min, and then coat the photoresist S1805 on the surface at a speed of 40s 4000rpm, spin-coating time is 40s, and then use a hot plate to bake the glue at 115°C for 5min;

[0039] 2) Using ultraviolet lithography technology to prepare interdigitated structures with a width of 80 microns;

[0040] 3) Metal Thermal Evaporation (PVD): Use a thermal evaporation coater to vaporize metal electrodes Cr / Au (5nm / 20nm) on the substrate to form interdigitated electrodes;

[0041] 4) Preparation of electrospinning solution: first prepare polyvinyl alcohol as 10% hydrogel, then disperse polyaniline / carbon composite material in chloroform, stir and disperse for 15 minutes;

[0042] 5)...

Embodiment 3

[0049] There is the preparation method of highly flexible and transparent miniature supercapacitor, it comprises the steps:

[0050] 1) Coat the photoresist LOR3A on the PET substrate with a coater at a speed of 4000rpm, and spin coating for 40s, then bake the glue with an electric heating plate at 185°C for 5min, and then coat the photoresist S1805 on the surface at a speed of 40s 4000rpm, spin-coating time is 40s, and then use a hot plate to bake the glue at 115°C for 5min;

[0051] 2) Using ultraviolet lithography technology to prepare interdigitated structures with a width of 80 microns;

[0052] 3) Metal Thermal Evaporation (PVD): Use a thermal evaporation coater to vaporize metal electrodes Cr / Au (5nm / 20nm) on the substrate to form interdigitated electrodes;

[0053] 4) Preparation of electrospinning solution: first prepare polyvinyl alcohol as 10% hydrogel, then disperse polyaniline / carbon composite material in chloroform, stir and disperse for 15 minutes;

[0054] 5)...

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Abstract

The invention relates to a mini-sized supercapacitor with high flexibility and high transparency and a large-scale preparation method of the mini-sized supercapacitor. The mini-sized supercapacitor comprises a substrate; a current collector metal is deposited on the substrate to be used as an interdigitated electrode. The mini-sized supercapacitor is characterized in that a polyaniline / carbon composite material is loaded on the interdigitated electrode through electrostatic spinning to form a three-dimensional conductive network nanowire structure; the three-dimensional conductive network nanowire structure is coated with vanadium oxide through deposition of an atomic layer. The mini-sized supercapacitor and the large-scale preparation method have the benefits that the large-scale preparation method is characterized in that through the construction of the three-dimensional conductive network nanowire structure, the charge exchange between an electrolyte ion and an electrode material is accelerated, and the surface of the three-dimensional conductive network nanowire structure is coated with V2O5 through the deposition of the atomic layer, so that the pseudocapacitance capacity of a device is enhanced, and the energy and the power density of a capacitor are improved. Meanwhile, due to the existence of the nanowire network, the high flexibility and high transparency of the device are achieved conveniently and easily.

Description

technical field [0001] The invention relates to a supercapacitor, in particular to a wearable micro supercapacitor with high flexibility and transparency and a large-scale preparation method thereof. Background technique [0002] With the development of science and technology, the energy storage unit at the micron-nano scale has become the limiting factor for wearable mobile electronic devices. Therefore, on the basis of realizing high-energy and high-power energy storage on a tiny chip with a given area, the The high flexibility and high transparency of the device are of great significance for the integration and application of the device. [0003] Recently, the use of on-chip micro-supercapacitors as energy supplies for tiny electronic devices has attracted great attention. At present, microcapacitors are divided into electric double layer microcapacitors and pseudocapacitor microcapacitors according to whether surface or near-surface redox reactions occur during energy s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/26H01G11/30H01G11/32H01G11/48H01G11/46H01G11/86
CPCY02E60/13H01G11/26H01G11/30H01G11/32H01G11/46H01G11/48H01G11/86
Inventor 麦立强肖蓓石孟竹田晓聪
Owner WUHAN UNIV OF TECH
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