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Organic/inorganic composite supercapacitor electrode material and preparation method therefor

A supercapacitor, inorganic composite technology, used in hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, nanotechnology for materials and surface science, etc., can solve the problems of short cycle life, low energy density, etc. Good performance, simple process and good cycle stability

Inactive Publication Date: 2017-05-31
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conductive polymers as electrode materials mainly have shortcomings such as short cycle life and low energy density, which limit their industrial application.

Method used

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  • Organic/inorganic composite supercapacitor electrode material and preparation method therefor
  • Organic/inorganic composite supercapacitor electrode material and preparation method therefor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Disperse aminosilsesquioxane in 50mL of 1mol / L hydrochloric acid aqueous solution at a concentration of 0.02wt%, ultrasonically disperse for 0.5h, and ultrasonic frequency is 40kHz;

[0021] (2) Add aniline to the hydrochloric acid solution of the above-mentioned aminosilsesquioxane, the monomer concentration is 0.5mol / L, and disperse for 0.5h under the combination of mechanical stirring and ultrasonic wave, the stirring speed is 300rpm, and the ultrasonic frequency is 40kHz;

[0022] (3) Disperse ammonium persulfate in 50mL of 1mol / L hydrochloric acid aqueous solution, refrigerate at 0°C for 0.5h, and its concentration is 0.5mol / L;

[0023] (4) Put the mixed solution of aniline in an ice-water bath, keep the temperature at 0°C for 0.5h, and mix the ammonium persulfate after being refrigerated dropwise under the combination of mechanical stirring at a stirring speed of 300rpm and ultrasonic frequency at 40kHz. Solution, keep the temperature at 0°C;

[0024] (5) Aft...

Embodiment 2

[0026] (1) Disperse aminosilsesquioxane in 50mL of 1mol / L hydrochloric acid aqueous solution at a concentration of 0.04wt%, ultrasonically disperse for 0.5h, and the ultrasonic frequency is 40kHz;

[0027] (2) Add aniline to the hydrochloric acid solution of the above-mentioned aminosilsesquioxane, the monomer concentration is 0.5mol / L, and disperse for 0.5h under the combination of mechanical stirring and ultrasonic wave, the stirring speed is 300rpm, and the ultrasonic frequency is 40kHz;

[0028] (3) Disperse ammonium persulfate in 50mL of 1mol / L hydrochloric acid aqueous solution, refrigerate at 0°C for 0.5h, and its concentration is 0.5mol / L;

[0029] (4) Put the mixed solution of aniline in an ice-water bath, keep the temperature at 0°C for 0.5h, and mix the ammonium persulfate after being refrigerated dropwise under the combination of mechanical stirring at a stirring speed of 300rpm and ultrasonic frequency at 40kHz. Solution, keep the temperature at 0°C;

[0030] (5)...

Embodiment 3

[0032] (1) Disperse aminosilsesquioxane in 50mL of 1mol / L aqueous hydrochloric acid solution at a concentration of 0.06wt%, ultrasonically disperse for 0.5h, and the ultrasonic frequency is 40kHz;

[0033] (2) Add aniline to the hydrochloric acid solution of the above-mentioned aminosilsesquioxane, the monomer concentration is 0.5mol / L, and disperse for 0.5h under the combination of mechanical stirring and ultrasonic wave, the stirring speed is 300rpm, and the ultrasonic frequency is 40kHz;

[0034] (3) Disperse ammonium persulfate in 50mL of 1mol / L hydrochloric acid aqueous solution, refrigerate at 0°C for 0.5h, and its concentration is 0.5mol / L;

[0035] (4) Put the mixed solution of aniline in an ice-water bath, keep the temperature at 0°C for 0.5h, and mix the ammonium persulfate after being refrigerated dropwise under the combination of mechanical stirring at a stirring speed of 300rpm and ultrasonic frequency at 40kHz. Solution, keep the temperature at 0°C;

[0036] (5)...

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Abstract

Disclosed is a preparation method for an organic / inorganic composite supercapacitor electrode material. The preparation method comprises the following steps of dispersing a silsesquioxane compound into an acid water solution, and dispersing in a hybrid way of mechanical stirring and ultrasonic wave; then adding a conductive polymer compound precursor, and continuously performing uniform dispersing in a joint way of mechanical stirring and ultrasonic wave; dispersing an oxidizing agent into an acid water solution, refrigerating, and then dropwise adding into the conductive polymer compound precursor and the silsesquioxane mixed solution, and continuously performing dispersing in a joint way of mechanical stirring and ultrasonic wave; and after the reaction is completed, washing the mixed solution by water and absolute ethyl alcohol in sequence until the filtering liquid is colorless, and performing vacuum drying to obtain the organic / inorganic composite supercapacitor electrode material. The organic / inorganic composite supercapacitor electrode material prepared by the preparation method has the advantages of low cost, simple process, regular and tidy structure, high conductivity, high cycling stability, excellent thermal stability and the like, and has high industrial application prospect.

Description

technical field [0001] The invention relates to the field of preparation of electrode materials for supercapacitors, in particular to an organic / inorganic composite supercapacitor electrode material and a preparation method thereof. Background technique [0002] After entering the 21st century, traditional fossil energy can no longer meet the needs of population growth, and the survival of human beings and the sustainable development of society will face huge challenges due to energy issues. Therefore, the task of finding and developing sustainable energy is imminent. At present, sustainable energy includes solar energy, wind energy, tidal energy and geothermal energy, etc., but there are fluctuations and intermittent problems in the conversion of these energies into electric energy. It shows a strong application prospect. [0003] Electrode materials are the core components of supercapacitors, which need to have the characteristics of high specific energy, long cycle life...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/48H01G11/30H01G11/24H01G11/86B82Y30/00B82Y40/00
CPCY02E60/13H01G11/48B82Y30/00B82Y40/00H01G11/24H01G11/30H01G11/86
Inventor 石刚李培培倪才华李赢王大伟桑欣欣
Owner JIANGNAN UNIV