Conductive polyaniline gel preparation methods and application of same to supercapacitor

A technology of conductive polyaniline and polyaniline gel, which is applied in the manufacture of hybrid/electric double layer capacitors and electrodes of hybrid capacitors, and can solve problems affecting the transmission of conductive polymer materials, reducing the specific surface area of ​​gels, and affecting electrochemical performance. , to achieve obvious redox performance, no environmental pollution, good electrochemical performance

Active Publication Date: 2016-02-03
中知在线股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although conductive polymer gels have many excellent properties, conductive polymer gels are still prepared by blending conductive polymers with non-conductive polymers. Although the conductive polymers prepared by this method have good me

Method used

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  • Conductive polyaniline gel preparation methods and application of same to supercapacitor
  • Conductive polyaniline gel preparation methods and application of same to supercapacitor
  • Conductive polyaniline gel preparation methods and application of same to supercapacitor

Examples

Experimental program
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Example Embodiment

[0030] Example 1

[0031] Dissolve 2mmol of aniline and 1mmolATMP in 1mL of distilled water, stir ultrasonically for 30min to fully dissolve and mix, then place them in an ice water bath at 0℃; dissolve 0.1g of ammonium persulfate in 0.5mL of distilled water, and then place at 0℃ In an ice water bath; finally, quickly add the solution with ammonium persulfate dissolved in the solution of aniline and ATMP, sonicate for 10 seconds and let stand for 10 minutes to form a polyaniline gel, then wash it with distilled water for 2-3 times; The polyaniline gel is freeze-dried to obtain the product. The prepared conductive polyaniline gel is analyzed by scanning electron microscope (SEM), such as figure 1 As shown, it can be seen that the gel consists of a three-dimensional network porous structure composed of nanosheets, and the nanosheets are connected to each other. The electrical conductivity of the freeze-dried polyaniline gel measured by a four-probe resistivity tester is 0.31S / cm, ...

Example Embodiment

[0032] Example 2

[0033] Dissolve 4mmol of aniline and 3mmolATMP in 2mL of distilled water, stir ultrasonically for 30min to fully dissolve and mix, then place them in a 2℃ ice water bath; dissolve 0.25g of ammonium persulfate in 1mL of distilled water, and then place on ice at 2℃ In a water bath; finally, quickly add the solution containing ammonium persulfate to the solution containing aniline and ATMP, sonicate for 15 seconds and let stand for 30 minutes to form a polyaniline gel, then wash 2-3 times with distilled water; The polyaniline gel is freeze-dried to obtain the product. The prepared conductive polyaniline gel was analyzed by SEM and specific surface area (BET), such as figure 2 As shown, the polyaniline gel is composed of a three-dimensional network porous structure composed of interconnected nanosheets, the thickness of the nanosheets is about 60 nm, and a large number of micropores are uniformly distributed on the nanosheets. The specific surface area of ​​the p...

Example Embodiment

[0034] Example 3

[0035] Dissolve 6mmol of aniline and 5mmolATMP in 4mL of distilled water. Stir ultrasonically for 30min to fully dissolve and mix, then place them in a 4℃ ice water bath; dissolve 0.5g of ammonium persulfate in 3mL of distilled water, and then place on 4℃ ice In a water bath; finally, quickly add the solution containing ammonium persulfate to the solution containing aniline and ATMP, sonicate for 30 seconds and let stand for 60 minutes to form a polyaniline gel, and then wash it with distilled water for 2-3 times; The polyaniline gel is freeze-dried to obtain the product. Analyze the prepared conductive polyaniline gel by SEM, such as image 3 As shown, the gel is still a three-dimensional structure composed of nanosheets. The electrical conductivity of the freeze-dried polyaniline gel is 0.35 S / cm measured by a four-probe resistivity tester.

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Abstract

The invention relates to conductive polymer gel and discloses conductive polyaniline gel preparation methods and application of the same to a supercapacitor. A first preparation method includes the steps that an ammonium persulfate solution is added into an aniline and ATMP solution, a reaction is conducted in an ice-water bath so that aniline polymerization can be conducted completely, then washing, freezing and drying are conducted, and the conductive polyaniline gel is obtained; a second preparation method includes the steps that the aniline and ATMP solution is added to a spray head A of a 3D printer, the ammonium persulfate solution is added to a spray head B of the 3D printer, the spray head A and the spray head B conduct printing alternatively at the temperature of 0-4 DEG C, a reaction is conducted at the same point, and the conductive polyaniline gel is formed; the gel prepared through the two mentioned methods can be evenly arrange on processed carbon paper in a spin coating mode, and vacuum drying is conducted, and conductive polyaniline gel electrodes are obtained. By means of the conductive polyaniline gel preparation methods and application, introduction of non-conductive polymer is avoided, the conductivity is improved, the conductive polyaniline gel with more excellent performance is obtained, the conductive polyaniline gel is used as an electrode material, the polyaniline gel is directly arranged on a current collector in a coated mode, and the amount of inactive substances in the electrodes is reduced.

Description

technical field [0001] The invention relates to a preparation method of a conductive polymer gel, in particular to a preparation method of a conductive polyaniline gel synthesized by cross-linking polyaniline with small molecules of polyphosphoric acid and an energy storage application. Background technique [0002] In recent years, conductive polymers have attracted great attention because they are widely used in new energy devices such as supercapacitors and lithium-ion batteries. They are not only low in price, good in environmental stability, but also have certain electronic conductivity. However, with the development of various flexible and high-power energy devices, the low conductivity and poor processability of traditional conductive polymer materials often limit their application in high-performance devices. Therefore, it is of great significance to study new conductive polymer materials with excellent electrical conductivity and processability. [0003] Conductive...

Claims

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Application Information

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IPC IPC(8): C08G73/02C08J3/075H01G11/48H01G11/86
Inventor 许鑫华窦鹏郑娇曹真真
Owner 中知在线股份有限公司
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