Integrated planar supercapacitor and preparation method thereof

A supercapacitor, planar technology, applied in the manufacture of hybrid/electric double layer capacitors, multiple hybrid/electric double layer capacitors, etc., can solve the problem of reducing device mass specific capacity, volume specific capacity, device integration, and unfavorable electronic components Integration, complex preparation process and other issues, to achieve the effect of adjustable capacity, wide applicability, and simple preparation method

Inactive Publication Date: 2019-04-16
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The introduction of wires not only complicates the fabrication process of the device, but also reduces the mass specific capacity, volume specific capacity and the integrity of the device, which is not conducive to its further integration with other electronic components

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0041] The intercalation-exfoliated graphene and conductive carbon black are fully mixed with a mass ratio of 8:2 to obtain a mixture of the two, and then the above mixture is dispersed in a bivalent ester dissolved in polyvinyl chloride vinyl acetate by ball milling, wherein the mixture The mass ratio of polyvinyl chloride vinyl acetate and dibasic acid ester is 1:1:9, and the resulting dispersion system is used as conductive ink for screen printing. Design the screen printing screen, the screen part is 3 concentric circular devices and the connectors in series between the devices, the diameter of the inner circle is 4mm, the diameter of the outer circle is 6.5mm, the distance between the inner and outer circles is 0.5mm, and the width of the connector is 2mm. Such as figure 1 shown. When screen printing, place PET about 5mm below the screen, apply conductive ink to the blank space at one end of the screen, and then use a scraper to scrape the ink to the other end of the scr...

Embodiment 2

[0044] The reduced graphene oxide and the conductive carbon black are fully mixed with a mass ratio of 7:3 to obtain a mixture of the two, and then the above mixture is dispersed in a bivalent ester dissolved in polyvinyl chloride vinyl acetate by a ball milling method, wherein the mixture, poly The mass ratio of vinyl chloride vinyl acetate and dibasic ester is 1:1:9, and the resulting dispersion system is used as conductive ink for screen printing. Design the screen printing screen, the screen part is 4 linear devices and the connectors in series between the devices, the length of a single electrode of the linear device is 1cm, the width is 0.6mm, the spacing is 1mm, the length of the connector is 6mm, and the width is 2mm. When screen printing, place A4 paper about 5mm below the screen, apply conductive ink to the blank space at one end of the screen, and then use a scraper to scrape the ink to the other end of the screen at a speed of about 3cm / s, during which the ink is s...

Embodiment 3

[0047] Mix multi-walled carbon nanotubes and polyvinylidene fluoride at a mass ratio of 9:1 to obtain a mixture of the two, disperse the above mixture in N-methylpyrrolidone, and the mass ratio of the mixture to N-methylpyrrolidone is 1:5, The resulting dispersion was used as a screen printed conductive ink. Design the screen printing screen, the screen part is 4 linear devices and the parallel connection between the devices, the length of a single electrode of the linear device is 1cm, the width is 0.6mm, the spacing is 1mm, the length of the connector is 1cm, and the width is 3mm. When screen printing, place the glass plate about 5mm below the screen, apply conductive ink to the blank space at one end of the screen, and then use a scraper to scrape the ink to the other end of the screen at a speed of about 3cm / s, during which the ink is squeezed Deposit on the glass plate by pressing through the mesh of the screen plate, then dry the glass plate at 100°C for 12 hours, and f...

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Abstract

The invention discloses an integrated planar supercapacitor and a preparation method thereof. Specifically, a dispersion system containing an active material (graphene, carbon nanotube, conductive polymer, oxide, hydroxide, and the like) and an auxiliary agent serves as printing ink; components such as electrode materials, current collectors, and connectors are prepared on any insulating substratein one step by using a printing method to form the integrated supercapacitor. The obtained modular supercapacitor has the high integration degree, can be combined with printable and wearable electronic devices, contactless chips, and the like to serve as power sources of the printable and wearable electronic devices, the contactless chips, and the like, and has broad market application prospects.

Description

technical field [0001] The invention belongs to the field of energy storage, and in particular relates to an integrated planar supercapacitor and a preparation method thereof. Background technique [0002] Traditional supercapacitors usually adopt a stacked structure, which is sequentially stacked by current collector / positive electrode / diaphragm / negative electrode / current collector. The preparation process of this type of supercapacitor is complex, and the concentration of multiple interfaces makes it prone to interface separation during the bending process, which is not conducive to being a power source for future wearable and flexible electronic devices, and limits its practical application. In response to this problem, new planar supercapacitors in which the electrodes, electrolyte, current collector, and separator are located on the same substrate have attracted widespread attention in recent years. This type of supercapacitor integrates the current collector, electrod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/10H01G11/84
CPCH01G11/10H01G11/84Y02E60/13
Inventor 吴忠帅包信和师晓宇周锋
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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