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Preparation method for electrode material of super capacitor, application and super capacitor

A supercapacitor and electrode material technology, applied in capacitors, battery electrodes, electrolytic capacitors, etc., can solve the problems of inconvenient industrial production, strong equipment dependence, and complicated manufacturing process, and achieve good supercapacitor performance, low equipment dependence, The effect of simple preparation process

Active Publication Date: 2012-05-16
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a simple process, short process, low equipment dependence, suitable for large Preparation method of supercapacitor electrode material for large-scale industrial production

Method used

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  • Preparation method for electrode material of super capacitor, application and super capacitor
  • Preparation method for electrode material of super capacitor, application and super capacitor
  • Preparation method for electrode material of super capacitor, application and super capacitor

Examples

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Embodiment 1

[0039] (1) Weigh 8×10 -3 mol of potassium permanganate was dissolved in 80mL of deionized water to make a solution with a concentration of 0.1mol / L;

[0040] (2) Add 5 mL of PEG2000 to the potassium permanganate solution while stirring to obtain a mixed solution;

[0041] (3) Continue to stir the mixed solution until the color fades, and filter to obtain a precipitate;

[0042] (4) The precipitate was washed 4 times with deionized water, washed with absolute ethanol, and then dried in an oven at 60° C. to obtain a black supercapacitor electrode material.

[0043] figure 2It is the SEM figure of the supercapacitor electrode material prepared by Example 1 of the present invention and Comparative Example 1, as figure 2 As shown, A1 is the SEM image of the supercapacitor electrode material prepared in Example 1, and B1 is the SEM image of the supercapacitor electrode material prepared in Comparative Example 1. The particle size of the supercapacitor electrode material in Exa...

Embodiment 2

[0045] (1) Weigh 1.6×10 -3 mol of sodium permanganate was dissolved in 80mL of deionized water to make a solution with a concentration of 0.02mol / L;

[0046] (2) Add 2 mL of PEG400 to the sodium permanganate solution while stirring to obtain a mixed solution;

[0047] (3) Continue to stir the mixed solution until the color fades, and filter to obtain a precipitate;

[0048] (4) The precipitate was washed 5 times with deionized water, and then dried in an oven at 80° C. to obtain a black supercapacitor electrode material.

Embodiment 3

[0050] (1) Weigh 6.4×10 -3 mol of potassium permanganate was dissolved in 80mL of deionized water to make a solution with a concentration of 0.08mol / L;

[0051] (2) Add 4 mL of PEG6000 to the potassium permanganate solution while stirring to obtain a mixed solution;

[0052] (3) Continue to stir the mixed solution until the color fades, and filter to obtain a precipitate;

[0053] (4) The precipitate was washed three times with deionized water, washed with absolute ethanol, and then dried in an oven at 100° C. to obtain a black supercapacitor electrode material.

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Abstract

The invention discloses a preparation method for an electrode material of a super capacitor. The preparation method comprises the following steps of: preparing an aqueous solution of permanganate at the concentration of 0.02 to 0.20 mol / L, and adding polyethylene glycol with stirring to obtain a mixed solution, wherein the volume ratio of the polyethylene glycol to the aqueous solution of permanganate is 1:8 to 1:40; stirring the mixed solution, and filtering the mixed solution to obtain precipitates; and washing and drying the precipitates to obtain the electrode material of the super capacitor. The preparation method for the electrode material of the super capacitor has the characteristics of simple process, short flow, low dependence on equipment and suitability for large-scale production; and the prepared electrode material of the super capacitor has high performance.

Description

technical field [0001] The invention mainly relates to a preparation method of an electrode material, in particular to a preparation method of a supercapacitor electrode material. Background technique [0002] Supercapacitors have attracted much attention due to their high energy density, high power density, long life, and environmental friendliness. Technology and other aspects have extremely important and broad application prospects, and have become a research hotspot in countries all over the world. In the research and development of supercapacitors, carbon materials with high specific surface area are ideal electrode materials for supercapacitors, such as activated carbon, carbon aerogel, carbon nanotubes and carbon fibers. Although carbon supercapacitors have been initially commercialized, due to their relatively small capacity, their application is limited to a certain extent. It is necessary to find new high-capacity, stable and reliable supercapacitor electrode mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/00H01G9/042H01M4/50
CPCY02E60/12Y02E60/13Y02E60/10
Inventor 周明杰俞兆喆王要兵
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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