Nitrogen-rich foam carbon electrode material for super capacitor and preparing method of nitrogen-rich foam carbon electrode material

A technology of supercapacitors and electrode materials, applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double-layer capacitors, etc., can solve the problems of long charging time, short service life and low energy storage density of secondary batteries, and achieve good cycle stability. performance, low preparation cost and simple process

Inactive Publication Date: 2014-09-10
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Secondary batteries have disadvantages such as long charging time, low energy storage density and short service life.
In addition to high nitrogen content, the carbon

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0059] Example 1

[0060] The bisphenol A type cyanate ester and the multifunctional cyanate ester are weighed at 40:0 (mass ratio), and then dibutyltin dilaurate with 0.01% cyanate ester mass is added and mixed uniformly. The foam nickel (area density 250g / m 2 ) Soaked in hydrochloric acid (concentration 0.1mol / L) for 4h (15℃), rinsed with deionized water to neutrality, put it into a vacuum drying oven at 80℃ for drying, and then put the foamed nickel into a cast iron mold. The mixed cyanate ester and dibutyltin dilaurate are charged into the polymerization reaction vessel, and the temperature is increased at a rate of 5°C / min, and Ar (flow rate 50mL / min) is introduced from the beginning of the temperature rise. When the temperature rises to 120°C, the speed is adjusted to 500rpm and stirred for 30min to obtain the prepolymerized resin, and then poured into the mold (130°C) to vacuum and de-air bubbles for 0.5h (vacuum degree 1.0×10) -1 Pa), and then cure according to the follow...

Example Embodiment

[0062] Example 2

[0063] The bisphenol A type cyanate ester and the multifunctional cyanate ester are weighed at a mass ratio of 40:10, and then N,N-dimethylamide containing 0.05% of the cyanate ester mass is added and mixed uniformly. The foam nickel (area density 500g / m 2 ) Soaked in hydrochloric acid (concentration 1mol / L) for 1h (25°C), rinsed with deionized water to neutrality, put into a vacuum drying oven at 80°C for drying, and then put the foamed nickel into a cast iron mold. Put the mixed cyanate ester and dibutyltin dilaurate into the polymerization reaction vessel, increase the temperature at a rate of 5°C / min, and introduce N 2 (Flow rate 100mL / min). When the temperature rises to 130°C, the speed is adjusted to 600rpm and stirred for 40min to obtain the prepolymerized resin, then poured into the mold (140°C) and vacuumed to degas for 1h, and then cured according to the following process: 150°C / 2h+200°C / 1h+240°C / 2h, put the cured resin into N 2 In a protective atm...

Example Embodiment

[0065] Example 3

[0066] The bisphenol A type cyanate ester and the multifunctional cyanate ester are weighed at a mass ratio of 40:20, and then 0.1% of the cyanate ester mass is added to dibutyl tin dilaurate and mixed uniformly. The foam nickel (area density 600g / m 2 ) Soak in hydrochloric acid (concentration 0.5mol / L) for 2h (25℃), rinse with deionized water to neutrality, put it into a vacuum drying oven at 80℃ for drying, and then put the foamed nickel into a cast iron mold. Put the mixed cyanate ester and dibutyltin dilaurate into the polymerization reaction vessel, increase the temperature at a rate of 5°C / min, and introduce N 2 (Flow 200mL / min). When the temperature rises to 140°C, the speed is adjusted to 800rpm and stirred for 50min to obtain the prepolymerized resin, then poured into the mold (150°C), vacuumed and degassed for 0.5h, and then cured according to the following process: 140°C / 2h+180°C / 2h+250°C / 1h, put the cured resin into N 2 In a protective atmosphere...

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Abstract

The invention provides a nitrogen-rich foam carbon electrode material for a super capacitor and a preparing method of the nitrogen-rich foam carbon electrode material. The preparing method includes: taking foamed nickel subjected to acid treatment as an auxiliary template, taking cyanate ester as a raw material, and obtaining the nitrogen-rich foam carbon electrode material for the super capacitor via pre-polymerizing, moulding by casting, curing, carbonizing and template removing technologies. The prepared foam carbon electrode material is uniform in pore diameters, high in nitrogen content, good in electrical conductivity, high in porosity and aperture ratio, large in specific capacity, good in cycling performance and capable of realizing complex structure forming without a foaming technology.

Description

technical field [0001] The invention belongs to the field of high-performance carbon materials, and in particular relates to a nitrogen-rich foam carbon electrode material for a supercapacitor and a preparation method thereof. Background technique [0002] With the rapid growth of economy and population, the energy and resources that human beings rely on for survival are increasingly exhausted. In order to solve the energy crisis, on the one hand, new energy sources such as solar energy, wind energy, ocean energy and nuclear energy are gradually being developed and used; on the other hand, the development and application of new energy storage devices with high efficiency, low price and energy saving is imminent. At present, the main energy storage devices on the market are secondary batteries and traditional physical capacitors. Secondary batteries have disadvantages such as long charging time, low energy storage density and short service life. Conventional physical capaci...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G11/24H01G11/32
CPCY02E60/13
Inventor 林起浪连琴凤
Owner FUZHOU UNIVERSITY
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