Anthraquinone-based modified composite electrode material, its preparation method and application, and electronic components containing the material

A composite electrode, anthraquinone-based technology, used in hybrid capacitor electrodes, hybrid/electric double-layer capacitor manufacturing, etc., can solve the problem of reducing the electrochemical properties of conductive polymers, difficult to prepare graphene-based composite materials, conductive polymer damage, etc. The problem is to achieve the effect of good cycle stability and high temperature stability of the product, improving dual capacitance characteristics and high pseudocapacitance characteristics.

Active Publication Date: 2019-01-01
SICHUAN ANKETE ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the one hand, this post-processing method of grinding will seriously damage the conductive polymer, which will greatly reduce the electrochemical properties of the conductive polymer. On the other hand, it is difficult to prepare graphene-based composite materials with nanoscale

Method used

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  • Anthraquinone-based modified composite electrode material, its preparation method and application, and electronic components containing the material
  • Anthraquinone-based modified composite electrode material, its preparation method and application, and electronic components containing the material
  • Anthraquinone-based modified composite electrode material, its preparation method and application, and electronic components containing the material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] (1) Take an appropriate amount of graphene oxide (GO) gel, and add deionized water; then, in an ice bath at 0°C, sonicate for 2 hours to obtain a 6 mg / ml GO dispersion A;

[0073] (2) Take an appropriate amount of 9,10-anthraquinone, dissolve it in a mixed solution of acetonitrile and ethyl acetate (volume ratio 1:1) in a mixed organic solvent, and conduct ultrasonic treatment for 2 hours in an ice bath at 0°C. Obtain 6 mg / ml of anthraquinone solution B;

[0074] (3) Measure appropriate amount of GO dispersion A and anthraquinone solution B according to the volume ratio of 1:1, and mix them, and then ultrasonically treat them for 2-5 hours in an ice bath at 0-5°C to obtain a mixed solution C ;

[0075] (4) Add the catalyst tert-butyl nitrite to the mixed solution C, and make the mass ratio of the catalyst to the polyanthraquinone precursor 2:1, and stir it with a low-speed magnetic force in a dark room for 0.5-1h to obtain the following formula: figure 1 The mixed sol...

Embodiment 2

[0087] (1) Take an appropriate amount of graphene oxide (GO) gel and add deionized water; then, in an ice bath at 0-5°C, sonicate for 1 hour to obtain a 1 mg / ml GO dispersion A.

[0088](2) Take an appropriate amount of 1.2-diamino-9.10 anthraquinone, dissolve it in a mixed solution of n-butanol and chloroform (volume ratio 10:1), and treat it ultrasonically for 2.5 hours in an ice bath at 0°C , to obtain 10mg / ml anthraquinone solution B;

[0089] (3) Take an appropriate amount of GO dispersion A and anthraquinone solution B according to the volume ratio of 30:1 and mix them respectively, and conduct ultrasonic treatment for 5 hours in an ice bath at 5°C to obtain a mixed solution C;

[0090] (4) Add the catalyst tert-butyl nitrite to the mixed solution C, the mass ratio of the catalyst to the polyanthraquinone precursor is 2:1, and stir it magnetically at a low speed in a dark room for 1 hour to obtain the mixed solution D;

[0091] (5) import the mixed solution D into the h...

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Abstract

The invention provides an anthraquinone-modified composite electrode material, a preparation method and application thereof, and an electronic component comprising such material. In the method of the invention, an anthraquinone-modified oxidized graphene dispersion liquid is obtained by adding a polyoxanthraquinone precursor into an oxidized graphene gel and conducting ultrasonic dispersion. The oxidized graphene is used as an oxidant, and a target composite electrode material is prepared under conditions of high temperature and high pressure using a hydrothermal method. The prepared composite electrode material has the advantages of simple preparation method, high yield, easy batch production and the like. Meanwhile, the prepared composite electrode material also has good mechanical properties and electrochemical activity and can be used for the preparation of electronic components such as supercapacitors. Further, the prepared electronic components also have excellent electrical properties and can be used in a variety of environments.

Description

technical field [0001] The invention relates to the field of novel energy storage materials, in particular to an anthraquinone-based modified composite electrode material, its preparation method and application, and electronic components containing the material. Background technique [0002] Supercapacitors, also known as electrochemical capacitors, are a new type of energy storage device between rechargeable batteries and capacitors. It has been more than half a century since the first patent on supercapacitors was proposed. Compared with traditional capacitors, supercapacitors have the characteristics of high energy and high density, and their capacitance is 1-2 orders of magnitude higher than conventional capacitors; at the same time, compared with secondary batteries, supercapacitors also have great power and cycle life. big advantage. Therefore, supercapacitors have broad application prospects in fields such as electric power, transportation, and aerospace. Especially ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/26H01G11/30H01G11/48H01G11/86
CPCY02E60/13
Inventor 杨文耀唐可夏继宏李杰高君华武兆堃张海洋徐建华杨邦朝
Owner SICHUAN ANKETE ELECTRONICS TECH
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