Preparation method of PEDOT:PSS high-conductivity porous flexible film

A flexible film and high conductivity technology, which is applied in the field of preparation of PEDOT:PSS high conductivity porous flexible film, can solve the problems of low capacitance performance, limited capacitance and active material loading, and achieve high charge and discharge stability and high rate Performance, Effect of High Conductivity

Inactive Publication Date: 2019-09-13
JIANGXI SCI & TECH NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PEDOT:PSS thin films usually exhibit the characteristics of flat surface and dense structure, which greatly limit their capacitance and active material loading, resulting in low capacitance performance.

Method used

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  • Preparation method of PEDOT:PSS high-conductivity porous flexible film

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A preparation method of PEDOT:PSS highly conductive porous flexible film, comprising the following steps:

[0031] (1) Disperse 1000 μL PEDOT:PSS dispersion in 15 mL of ethanol, oscillate rapidly for 3 minutes, and ultrasonically disperse to obtain a mixture;

[0032] (2) Take 108 μL of PS nanosphere (100-300nm) dispersion solution and add it to the above mixture, and use an ultrasonic cell pulverizer with 30% power to sonicate for 30 minutes;

[0033] (3) Carry out vacuum suction filtration with the PVDF (0.45 μm) filter membrane of the above-mentioned ultrasonic solution;

[0034] (4) After suction filtration, immerse in deionized water to separate the filter membrane from the film and complete the stripping;

[0035] (5) rinse the film with ethanol, then dry naturally, and the film obtained is called PEDOT:PSS / PS film;

[0036] (6) Utilize tetrahydrofuran (THF) soaking 10min after drying, the film obtained is named porous PEDOT:PSS film;

[0037] (7) The porous PE...

Embodiment 2

[0041] A preparation method of PEDOT:PSS highly conductive porous flexible film, comprising the following steps:

[0042] (1) Disperse 1000 μL PEDOT:PSS dispersion in 15 mL of ethanol, oscillate rapidly for 3 minutes, and ultrasonically disperse to obtain a mixture;

[0043] (2) Take 108 μL of PS nanosphere (100-300nm) dispersion solution and add it to the above mixture, and use an ultrasonic cell pulverizer with 30% power to sonicate for 30 minutes;

[0044] (3) Carry out vacuum suction filtration with the PVDF (0.45 μm) filter membrane of the above-mentioned ultrasonic solution;

[0045] (4) After suction filtration, immerse in deionized water to separate the filter membrane from the film and complete the stripping;

[0046] (5) rinse the film with ethanol, then dry naturally, and the film obtained is called PEDOT:PSS / PS film;

[0047] (6) Utilize toluene to soak 10min after drying, the film obtained is named porous PEDOT:PSS film;

[0048] (7) The porous PEDOT:PSS film w...

Embodiment 3

[0052] A preparation method of PEDOT:PSS highly conductive porous flexible film, comprising the following steps:

[0053] (1) Disperse 1000 μL PEDOT:PSS dispersion in 15 mL of ethanol, oscillate rapidly for 3 minutes, and ultrasonically disperse to obtain a mixture;

[0054] (2) Take 108 μL of PS nanosphere (100-300nm) dispersion solution and add it to the above mixture, and use an ultrasonic cell pulverizer with 30% power to sonicate for 30 minutes;

[0055] (3) Carry out vacuum suction filtration with the PVDF (0.45 μm) filter membrane of the above-mentioned ultrasonic solution;

[0056] (4) After suction filtration, immerse in deionized water to separate the filter membrane from the film and complete the stripping;

[0057] (5) rinse the film with ethanol, then dry naturally, and the film obtained is called PEDOT:PSS / PS film;

[0058] (6) Utilize chloroform soaking 10min after drying, the film obtained is named as porous PEDOT:PSS film;

[0059] (7) The porous PEDOT:PSS ...

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Abstract

The invention discloses a preparation method of a PEDOT:PSS high-conductivity porous flexible film, and belongs to the technical field of supercapacitor electrode materials. According to the method, polystyrene nanospheres are used as templates; PEDOT:PSS dispersion liquid and the polystyrene nanospheres are compounded in situ; a porous PEDOT:PSS film is obtained through vacuum suction filtration;the conductive performance of the film is optimized through solvent post-treatment; the prepared PEDOT:PSS film has a porous structure, shows excellent electrochemical performances such as relativelyhigh conductivity, high charge-discharge stability, high rate performance and the like, can be used for a high-performance film electrode, and is further used for a high-performance flexible film capacitor; favorable support is provided for a portable energy storage device; and the application prospect of PEDOT:PSS as an electrode material substrate is broadened.

Description

technical field [0001] The invention belongs to the technical field of supercapacitor electrode materials, and in particular relates to a preparation method of a PEDOT:PSS highly conductive porous flexible film. Background technique [0002] In recent years, human interest in portable / wearable electronic devices has grown rapidly, and the demand for energy storage materials with both high flexibility and high performance has also increased. Flexible energy storage systems require materials that are lightweight, safe, and stable in performance, and can be integrated with other energy harvesting systems. Flexible supercapacitors are one of the excellent candidates for portable energy storage devices. They have the advantages of good flexibility, high power density, fast charge and discharge speed, good cycle stability, and wide temperature range. Screens, organic light-emitting diodes, electronic watches and other fields have broad application prospects. [0003] In order to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/48H01G11/86
CPCH01G11/30H01G11/48H01G11/86Y02E60/13
Inventor 刘佩佩徐景坤刘国强蒋丰兴林元城杨津
Owner JIANGXI SCI & TECH NORMAL UNIV
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