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Preparation method and application of carbon fiber based nickel hydroxide composite material

A composite material, nickel hydroxide technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of limiting the application of supercapacitor electrodes, the impact of conductivity, and low aggregation, so as to weaken the agglomeration phenomenon , easy to achieve, excellent performance

Inactive Publication Date: 2017-01-25
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nano-metal hydroxide has a high capacitance value as an electrode material for supercapacitors. However, the disadvantages of easy aggregation and low conductivity affect its cycle stability and capacitance value of high current density, which limits its application as a supercapacitor electrode.

Method used

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  • Preparation method and application of carbon fiber based nickel hydroxide composite material
  • Preparation method and application of carbon fiber based nickel hydroxide composite material

Examples

Experimental program
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Embodiment

[0019] 2 g of commercially available medical absorbent cotton was placed in a corundum boat and placed in the middle of a tube furnace, heated to 700 °C for 2 h under a nitrogen atmosphere, and the heating rate was 10 °C / min, and then naturally cooled to room temperature under a nitrogen atmosphere , to obtain carbon fiber blocks; add 5.26 g of nickel sulfate, 1.00 g of potassium persulfate and 45 mL of distilled water into a beaker, stir to dissolve, and prepare a mixed solution; wet the carbon fiber blocks with methanol and put them into the mixed solution, and use copper Press the wire to make the carbon fiber block sink into the bottom of the beaker containing the mixed solution, and lean against the inner wall of the beaker, then put a stirring magnetic rotor in the center of the beaker, start stirring, and add 3 mL of ammonia water with a mass fraction of 28% drop by drop. After the addition, stop stirring and let it stand for 1 h, then take out the carbon fiber block sam...

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Abstract

The invention discloses preparation method and application of a carbon fiber based nickel hydroxide composite material. The preparation method includes: subjecting degreasing cotton to high-heat treatment under nitrogen atmosphere to obtain a carbon fiber block; adding nickel sulfate and potassium peroxodisulfate into distilled water for stirring to dissolve, adding the carbon fiber block wetted through methyl alcohol after complete dissolution, under magnetic stirring, dropwise adding 3mL of ammonium hydroxide 28% in mass fraction, and after dropwise adding is completed, stopping stirring for standing for 1 hour; taking a carbon fiber based sample which is washed through the distilled water and then placed in an oven for drying for 12 hours under the temperature of 80DEG C to obtain the carbon fiber based nickel hydroxide composite material which can be used as an electrode material for a supercapacitor. The preparation method and application is simple in operation and easy to implement, and the obtained carbon fiber based nickel hydroxide composite material is good in performance when serving as the electrode material of the supercapacitor.

Description

technical field [0001] The invention belongs to the technical field of composite electrode material preparation, and in particular relates to a preparation method and application of a carbon fiber-based nickel hydroxide composite material. Background technique [0002] With the rapid development of social economy and the rapid growth of population, the problem of energy shortage is becoming more and more prominent. In order to solve these problems, it is urgent to develop environmentally friendly sustainable energy with high utilization rate and low pollution. Supercapacitors have attracted much attention due to their advantages such as high power density, long cycle life and simple working principle. At present, supercapacitors have been used in electronic products, transportation, electricity, communications, and national defense security, such as electric screwdrivers, wind energy and solar power generation energy storage equipment. Studies have shown that the improveme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/86H01G11/30H01G11/40
CPCY02E60/13H01G11/86H01G11/30H01G11/40
Inventor 杨文冯艳艳陆正涛何华杰龙钟秀覃湘林
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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