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Hybrid solid state supercapacitor

A supercapacitor, hybrid technology, applied in the direction of solid electrolytic capacitors, capacitors, electrolytic capacitors, etc., can solve the problems of being difficult to bend, unable to meet the application, shrinking the volume, etc., to achieve reduced contact resistance, flexible shape design, and preparation process short effect

Inactive Publication Date: 2012-06-20
GUIZHOU BRANCH CHINA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the current supercapacitor products are mainly coiled and button-shaped, affected by their shape and structure, it is difficult to bend and reduce the size, which cannot meet the application in thin and light electronic products such as electronic tags and electronic cards.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Using Ti foil as the conductive current collector of the positive and negative electrodes, the oriented carbon nanotube array is directly grown on the surface of the conductive current collector by chemical vapor deposition to make the negative electrode sheet; the polyaniline film is coated on the oriented The surface of the carbon nanotubes is made into a positive plate, and the content of polyaniline in the polyaniline / aligned carbon nanotube composite material is 60%.

[0025] Preparation: Mix 1M H 2 SO 4 The solution was mixed with 10% (wt.%) polyvinyl alcohol (PVA) powder at 80 °C for 2 h to prepare a colloidal solution. The prepared positive and negative electrodes were placed in 1M H 2 SO 4 Soak in the solution, then immerse in the colloid solution at 80 ℃ for 0.5 h, take it out and dry it in the air for 24 h. Finally, the dry positive and negative plates are stacked together with a pressure of 5 MPa according to the monomer structure to obtain a hybrid soli...

Embodiment 2

[0027] Using Ti foil as the conductive current collector of the positive and negative electrodes, the aligned carbon nanotube array is directly grown on the surface of the conductive current collector by chemical vapor deposition to make the negative electrode sheet; the polyaniline is coated on the aligned carbon by electrochemical deposition. The surface of the nanotube is made into a positive electrode sheet, wherein the content of polyaniline in the polyaniline / aligned carbon nanotube composite material is 60%.

[0028] Preparation: Mix 1M H 2 SO 4The solution was mixed with 10% (wt.%) PVA powder at 80 °C for 2 h to prepare a colloidal solution. The prepared positive and negative electrodes were placed in 1M H 2 SO 4 Soak in the solution, then immerse in the colloid solution at 80 ℃ for 0.5 h, take it out and dry it in the air for 24 h. Finally, the hybrid solid-state supercapacitor obtained by stacking the dry positive and negative electrodes in parallel with a pressu...

Embodiment 3

[0030] Using Al foil as the conductive current collector of the positive and negative electrodes, the oriented carbon nanotube array is directly grown on the surface of the conductive current collector by chemical vapor deposition to make the negative electrode sheet; the polyaniline is coated on the oriented carbon by electrochemical deposition. The surface of the nanotube is made into a positive electrode sheet, wherein the content of polyaniline in the polyaniline / aligned carbon nanotube composite material is 40%.

[0031] Preparation: Mix 1M H 2 SO 4 The solution was mixed with 10% (wt.%) PVA powder at 80 °C for 2 h to prepare a colloidal solution. The prepared positive and negative electrodes were placed in 1M H 2 SO 4 Soak in the solution, then immerse in the colloid solution at 80 ℃ for 0.5 h, take it out and dry it in the air for 24 h. Finally, the dry positive and negative plates are stacked together with a pressure of 5 MPa according to the monomer structure to o...

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Abstract

The invention discloses a hybrid solid-state supercapacitor based on an oriented carbon nano tube material, which comprises a positive pole, a negative pole and solid-state electrolyte dissepiments between the positive pole and the negative pole. The positive pole is composed of oriented carbon nano tube arrays and polyaniline films directly arranged on a conductive substrate in a compounding manner; the negative pole is composed of the oriented carbon nano tube arrays also directly arranged on the conductive substrate; and the solid-state electrolyte dissepiments are polymer gel or solid-state electrolytes containing H2SO4. Based on the oriented carbon nano tube material, the positive pole and the negative pole are assembled with the solid-state electrolyte dissepiments in an overlapping manner. The hybrid solid-state supercapacitor provided by the invention has the advantages of high energy concentration, high power concentration, high safety, lower cost and no pollution.

Description

technical field [0001] A hybrid solid supercapacitor, in particular to a hybrid solid supercapacitor based on an aligned carbon nanotube array material. Background technique [0002] A supercapacitor is a new type of energy storage device that has hundreds of times higher energy density than ordinary capacitors and dozens or even hundreds of times higher power density than secondary batteries. It has the advantages of high specific power, fast charging and discharging speed, long cycle life, wide operating temperature range, maintenance-free, economical and environmentally friendly, and is widely used in electric toys, information products, electric tools, weapons and equipment, electric vehicles, aerospace and power storage and other fields have a wide range of applications. [0003] Supercapacitors can be divided into two types: symmetrical type and asymmetrical type according to whether the positive and negative electrodes are the same. The latter is also called hybrid s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/042H01G9/02H01G9/028H01G9/15
CPCY02E60/13
Inventor 陈德杨建红高宏权李会林康乐
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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