High-energy-storage self-supporting PEDOTs:PSS composite film and preparation method thereof

A composite film and self-supporting technology, which is applied in the field of composite material processing, can solve problems such as high-performance supercapacitors, dangerous solvents, multi-steps, and cumbersome procedures, and achieve good application prospects, high rate performance, and high charge and discharge stability. sexual effect

Inactive Publication Date: 2017-08-22
JIANGXI SCI & TECH NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the patent document CN105405977A has prepared a self-supporting PEDOT:PSS film using the suction filtration method, its specific capacitance is only 50F / g, which is difficult to meet the energy supply requirements of high-performance supercapacitors. At the same time, the suction filtration method prepared by the patent The method of self-supporting PEDOT:PSS membrane involves the dangerous solvent of concentrated sulfuric acid and multi-step tedious procedures

Method used

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  • High-energy-storage self-supporting PEDOTs:PSS composite film and preparation method thereof
  • High-energy-storage self-supporting PEDOTs:PSS composite film and preparation method thereof
  • High-energy-storage self-supporting PEDOTs:PSS composite film and preparation method thereof

Examples

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Effect test

Embodiment 1

[0030] High-energy storage flexible self-supporting PEDOTs:PSS / metal oxide composite membrane, made of the following components by weight: 20 parts of PEDOT:PSS (mass ratio 2:5) aqueous solution, 0.26 parts of ruthenium dioxide, dimethyl sulfoxide 600 parts of solvent.

[0031] Preparation methods include:

[0032] Step 1: Stir and mix dimethyl sulfoxide and PEDOT:PSS aqueous solution at a weight ratio of 30:1, and obtain PEDOT:PSS organic mixed solution after ultrasonic degassing for 1 min;

[0033] Step 2: Add 0.26 parts of ruthenium dioxide to the PEDOT:PSS organic mixed solution prepared in step 1, and obtain a uniform suspension after ultrasonication;

[0034] Step 3: Vacuum filter the suspension prepared in step 2. After the suction filtration, put the filter membrane in water to separate the PEDOT:PSS composite membrane and the PVDF filter membrane, and dry it in vacuum at 100°C for 24 hours to obtain flexible self-supporting PEDOT: PSS composite film.

[0035] The a...

Embodiment 2

[0037] High-energy storage flexible self-supporting PEDOTs:PSS / metal oxide composite film, made of the following components by weight: 18 parts of aqueous solution of methylol PEDOT:PSS (mass ratio 1:3), 0.2 parts of tungsten trioxide, N - 600 parts of methylpyrrolidone solvent.

[0038] Preparation methods include:

[0039] Step 1: Stir and mix the N-methylpyrrolidone solvent and the hydroxymethyl PEDOT:PSS aqueous solution at a weight ratio of 100:3, and after ultrasonic degassing for 1 min, obtain a hydroxymethyl PEDOT:PSS organic mixed solution;

[0040] Step 2: Add 0.2 parts of tungsten trioxide to the hydroxymethyl PEDOT:PSS organic mixed solution prepared in step 1, and obtain a uniform suspension after ultrasonication;

[0041] Step 3: Vacuum filter the suspension prepared in step 2. After the suction filtration, put the filter membrane in water to separate the hydroxymethyl PEDOT:PSS composite membrane from the PVDF filter membrane, and dry it in vacuum at 80°C for 4...

Embodiment 3

[0044] High-energy storage flexible self-supporting PEDOTs:PSS / metal oxide composite film, made of the following components by weight: 20 parts of chloromethyl PEDOT:PSS (mass ratio 1:5) aqueous solution, 0.1 part of molybdenum trioxide, tricobalt tetroxide 0.15 parts, 500 parts of isopropanol solvent.

[0045] Preparation methods include:

[0046] Step 1: Stir and mix isopropanol solvent and chloromethyl PEDOT:PSS aqueous solution at a weight ratio of 25:1, and after ultrasonic degassing for 1 min, obtain chloromethyl PEDOT:PSS organic mixed solution;

[0047] Step 2: Add 0.1 part of molybdenum trioxide and 0.15 part of tricobalt tetroxide to the chloromethyl PEDOT:PSS organic mixed solution prepared in step 1, and obtain a uniform suspension after ultrasonication;

[0048] Step 3: Vacuum filter the suspension prepared in step 2. After the suction filtration, put the filter membrane in water to separate the chloromethyl PEDOT:PSS composite membrane from the PVDF filter membr...

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Abstract

The invention discloses a high-energy-storage self-supporting PEDOTs:PSS composite film and a preparation method thereof, which belong to the technical field of composite material processing. The high-energy-storage self-supporting PEDOTs:PSS composite film comprises the following components in parts by weight: 10-30 parts of PEDOTs:PSS, 0.1-0.6 part of metallic oxide, and 300-800 parts of organic solvent. The thickness of the flexible self-supporting composite film ranges from 2.0 to 10 microns. The PEDOTs:PSS composite film provided by the invention has the advantages of high flexibility, high mechanical property, high energy density, and high charge and discharge stability.

Description

technical field [0001] The invention relates to the technical field of composite material processing, in particular to a high energy storage self-supporting PEDOTs:PSS composite film and a preparation method thereof. Background technique [0002] With the development of wearable or portable electronic devices, flexible materials have potential applications in this field. In order to ensure the good operation of flexible electronic devices, their energy supply devices must not only provide sufficient power density and energy density, but also have good flexibility, cycle stability and light weight. High-performance flexible supercapacitors have the characteristics of high energy density, high power density, instantaneous high current charge and discharge, long service life, etc., and are easy to integrate with portable electronic devices. Therefore, in flexible electronics, high-performance flexible supercapacitors are a potential energy supply device. [0003] Flexible mem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/46H01G11/86
CPCH01G11/30H01G11/46H01G11/86Y02E60/13
Inventor 周卫强徐景坤常亚男吴井蒋丰兴祝丹华
Owner JIANGXI SCI & TECH NORMAL UNIV
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