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Stretchable capacitor electrode-conductor structure and super capacitor

A capacitor electrode, conductor structure technology, applied in the direction of hybrid capacitor electrode, hybrid capacitor collector, hybrid capacitor electrolyte, etc., to achieve the effect of not easy to break

Active Publication Date: 2020-01-07
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing carbon nanotube electrodes and conductors can only be stretched in a single direction with small strains, and cannot withstand repeated stretching with large strains in multiple directions.

Method used

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  • Stretchable capacitor electrode-conductor structure and super capacitor
  • Stretchable capacitor electrode-conductor structure and super capacitor
  • Stretchable capacitor electrode-conductor structure and super capacitor

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] see figure 1 and 2 , an embodiment of the present invention provides a method for preparing a stretchable capacitor electrode-conductor structure, comprising the following steps:

[0031] Step S1, providing an elastic base, pre-stretching the elastic base along a first direction and a second direction, so that the elastic base is in a stretched state, and the first direction and the second direction intersect;

[0032] Step S2, laying a carbon nanotube active material composite layer on the surface of the elastic substrate, specifically includes the following steps:

[0033] S21, laying a first carbon nanotube film-like structure on the surface of the elastic substrate in a stretched state, the first carbon nanotube film-like structure includes a plurality of super-aligned carbon nanotube films, and the plurality of super-aligned carbon nanotube films The carbon nanotube films are stacked, and each super-aligned carbon nanotube film includes a plurality of carbon nano...

Embodiment 1

[0067]In this embodiment, a stretchable capacitor electrode-conductor structure is prepared, wherein the capacitor electrode part includes PDMS, superparallel carbon nanotube film and AC, and the conductor part is pure carbon nanotube. The preparation method includes: providing a PDMS substrate, respectively carrying out 150% pre-stretching of the PDMS substrate along the length and width of the rectangular PDMS substrate; The tube cross film is covered on the PDMS substrate in the stretched state; a polyethylene film is covered on the 6-layer super-parallel carbon nanotube cross film as a mask; 45 mg of activated carbon powder is dispersed in 60 mL of ethanol using a cell pulverizer to form a dispersion Liquid, use a pipette gun to take 6mL of dispersion liquid and evenly drop it on the part of the surface of the 6-layer super-parallel carbon nanotube cross film covering the mask plate, and form an AC active material layer after the ethanol evaporates until there are no obviou...

Embodiment 2

[0069] The difference between this embodiment and Embodiment 1 is only that the conductor structure cut from pure carbon nanotubes is different. see Figure 5 .

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Abstract

The invention relates to a stretchable capacitor electrode-conductor structure. The stretchable capacitor electrode-conductor structure comprises a capacitor electrode and a conductor structure; the capacitor electrode and the conductor structure are integrally formed; the surface of the stretchable capacitor electrode-conductor structure is provided with a plurality of wrinkles; the capacitor electrode comprises a plurality of carbon nanotube layers which are arranged in a stacked mode; an active substance is arranged between every two adjacent carbon nanotube layers; each carbon nanotube layer comprises a plurality of super-aligned carbon nanotube films, wherein the plurality of super-aligned carbon nanotube films are arranged in a stacked mode; the conductor structure comprises a plurality of super-aligned carbon nanotube films, wherein the plurality of super-aligned carbon nanotube films are arranged in a stacked manner; and each of the super-aligned carbon nanotube films comprisesa plurality of carbon nanotubes, wherein the plurality of carbon nanotubes extend substantially in the same direction. The invention further provides a super capacitor comprising the stretchable capacitor electrode-conductor structure.

Description

technical field [0001] The invention relates to a stretchable capacitor electrode-conductor structure and a supercapacitor, in particular to a capacitor electrode-conductor structure and a supercapacitor that can be stretched in different directions with a large strain. Background technique [0002] In the actual working environment of stretchable electronic devices, such as biological tissues, repeated deformations in different directions often occur, which requires stretchable electronic devices not only to be able to withstand a single large strain of stretching, but also to withstand different strains. Repeated deformation in different directions requires high resistance to strain cycles in different directions. A stretchable capacitor is a relatively commonly used stretchable electronic device. In order to be able to match the working characteristics and working environment of stretchable capacitors, both electrodes and conductors of stretchable capacitors need to have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/26H01G11/68H01G11/70H01G11/86
CPCH01G11/26H01G11/68H01G11/70H01G11/86H01G11/36H01G11/56H01G11/78Y02E60/13
Inventor 于洋王佳平姜开利范守善
Owner TSINGHUA UNIV
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