Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of supercapacitor electrode material and preparation method thereof

A technology for supercapacitors and electrode materials, applied in the field of electronics, can solve the problems of low device dependence, low energy density, poor cycle life, etc., and achieve the effects of simple and easy preparation method, high energy density, and long cycle life.

Active Publication Date: 2020-01-21
HUNAN CHENLI NEW MATERIAL CO LTD
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects in the prior art, the present invention provides a supercapacitor electrode material and a preparation method thereof. The preparation method has simple process, short process, low equipment dependence, and is suitable for large-scale industrial production; prepared by the preparation method The obtained supercapacitor electrode material overcomes the more or less technical problems of low energy density, relatively expensive price, small specific capacity and poor cycle life of traditional supercapacitor electrode materials.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A preparation method for a supercapacitor electrode material, comprising the steps of:

[0029] 1) Surface modification of porous polypyrrole tubes: Disperse 30 g of porous polypyrrole tubes in 100 g of dichloromethane, then add 10 g of epichlorohydrin and 2 g of sodium hydroxide, stir and react at 40 ° C for 4 hours, then filter, and use Washing 3 times with water, then washing 3 times with ethanol, and then drying in a vacuum oven at 70°C for 12 hours to obtain a surface-modified porous polypyrrole tube;

[0030] 2) Preparation of surface-modified porous polypyrrole tube / amino-modified fullerene composite material: disperse 30 g of the surface-modified porous polypyrrole tube prepared in step 1) in 100 g of isopropanol, and then add amino 20g of modified fullerene and 5g of dihydrazine phthalazine were stirred and reacted at 75°C for 6 hours, then the isopropanol was removed by rotary evaporation, washed 3 times with ether, and then placed in a vacuum drying oven at 7...

Embodiment 2

[0036] A preparation method of a supercapacitor electrode material, comprising the steps of:

[0037] 1) Surface modification of porous polypyrrole tube: Disperse 35 g of porous polypyrrole tube in 115 g of acetonitrile, then add 10 g of epichlorohydrin and 2.5 g of potassium hydroxide, stir and react at 45°C for 4.5 hours, then filter and wash with water 4 times, and then washed 4 times with ethanol, and then placed in a vacuum drying oven at 73 ° C for 13 hours to obtain a surface-modified porous polypyrrole tube;

[0038]2) Preparation of surface-modified porous polypyrrole tube / amino-modified fullerene composite material: disperse 35 g of the surface-modified porous polypyrrole tube prepared in step 1) in 120 g of isopropanol, and then add amino 20g of modified fullerene and 5g of dihydrazine phthalazine were stirred and reacted at 79°C for 7 hours, then the isopropanol was removed by rotary evaporation, washed 4 times with ether, and then dried in a vacuum oven at 73°C fo...

Embodiment 3

[0044] A preparation method for a supercapacitor electrode material, comprising the steps of:

[0045] 1) Surface modification of porous polypyrrole tube: Disperse 40 g of porous polypyrrole tube in 132 g of acetone, then add 10 g of epichlorohydrin and 3 g of sodium carbonate, stir and react at 50 ° C for 5 hours, then filter and wash with water 5 times , and then washed with ethanol for 4 times, and then placed in a vacuum drying oven at 76 ° C for 13.5 hours to obtain a surface-modified porous polypyrrole tube;

[0046] 2) Preparation of surface-modified porous polypyrrole tube / amino-modified fullerene composite material: disperse 42 g of the surface-modified porous polypyrrole tube prepared in step 1) in 140 g of isopropanol, and then add amino 20g of modified fullerene and 5g of dihydrazine phthalazine were stirred and reacted at 80°C for 7.2 hours, then the isopropanol was removed by rotary evaporation, washed 4 times with ether, and then dried in a vacuum oven at 76°C f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of a supercapacitor electrode material. The method comprises: step one, carrying out surface modification of a porous polypyrrole tube; step two, preparinga surface modified porous polypyrrole tube / amino-modified fullerene composite material; step three, preparing fluorine-doped V-Bi-Al-O-Si; and step four, preparing an electrode material. In addition,the invention also discloses a supercapacitor electrode material prepared by the preparation method of a supercapacitor electrode material and a supercapacitor using the supercapacitor electrode material as an electrode material. The supercapacitor electrode material disclosed by the invention has advantages of low price, high energy density, high electrical conductivity, low internal resistance,large specific capacitance, long cycle life, and safe and environment-friendly use.

Description

technical field [0001] The invention belongs to the technical field of electronics, and relates to a supercapacitor element, in particular to a supercapacitor electrode material and a preparation method thereof. Background technique [0002] With the development of the economy, environmental issues and energy issues are still important factors restricting social progress. In order to solve these problems, various clean energy devices have attracted widespread attention in the industry. Among them, supercapacitor is one of many clean energy devices. It is a new type of clean electronic device with the characteristics of high energy density, high power density and long life. It also has the advantages of maintenance-free and high reliability. It has both capacitance and battery characteristics. element. Due to its high energy density, high power density, long life, and environmental friendliness, it is widely used in consumer electronics (such as computers, etc.), energy tra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/48
CPCH01G11/30H01G11/48H01G11/86Y02E60/13
Inventor 胡桂枝
Owner HUNAN CHENLI NEW MATERIAL CO LTD