CuCo2S4 active substance diluent for super-capacitor and preparation method thereof

An active material and supercapacitor technology, which is applied to the CuCo2S4 active material diluent of supercapacitors and its preparation field, can solve the problems of large nanocrystal particles and uneven dispersion, and achieve high dispersion, good stability, and high specific capacitance activity. Effect

Inactive Publication Date: 2017-11-24
JIANGSU UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the recent CuCo 2 S 4 There have been some research results on the solvothermal preparation method of nanocrystals, but the nanocrystal particles synthesized at present are still large or unevenly dispersed; secondly, how to effectively combine with the current collector and the active material after preparation. How to ensure the activity and morphology of the original capacitor is an urgent problem to be solved

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  • CuCo2S4 active substance diluent for super-capacitor and preparation method thereof
  • CuCo2S4 active substance diluent for super-capacitor and preparation method thereof

Examples

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preparation example Construction

[0025] The present invention is used for the CuCo of supercapacitor 2 S 4 A preparation method for an active substance dilution, the preparation method comprising the following steps:

[0026] (1) Add copper source and cobalt source into glycerol at a molar ratio of 1:2. The amount of glycerol is 20 to 25 times the total mass of copper source and cobalt source. Stir quickly until the copper source and cobalt source until completely dissolved in glycerin;

[0027] (2) Weigh the sulfur source according to the molar ratio of copper source, cobalt source, and sulfur source as 1:2:4, and slowly add deionized water to the sulfur source, stirring while dropping until the sulfur source is completely dissolved;

[0028] (3) Mix the solutions obtained in the previous two steps, and stir for 10-20 minutes to disperse the ions evenly, then pour them into a high-pressure reactor and seal;

[0029] (4) Place the autoclave in an oven at 175-190°C for 10-15 hours and take it out. After it ...

Embodiment 1

[0034] This example is used to prepare CuCo 2 S 4 The copper source, cobalt source, and sulfur source of the active material are: copper chloride, cobalt chloride, and thiourea; CuCo for supercapacitors 2 S 4 The preparation method of active substance dilution comprises the following steps:

[0035] Step 1, add copper source and cobalt source into glycerol according to the molar ratio of 1:2, the amount of glycerol is 20 times of the total mass of copper source and cobalt source, stir quickly until the copper source and cobalt source are completely until dissolved in glycerol;

[0036] In the second step, the sulfur source is weighed according to the molar ratio of copper source, cobalt source, and sulfur source as 1:2:4, and deionized water is slowly added dropwise to the sulfur source, and stirred while dropping until the sulfur source is completely dissolved;

[0037] Step 3: Mix the solutions obtained in the previous two steps, and stir for 15 minutes to disperse the i...

Embodiment 2

[0041] This example is used to prepare CuCo 2 S 4 The copper source, cobalt source, and sulfur source of the active material are: copper sulfate, cobalt nitrate, thiourea, CuCo for supercapacitors 2 S 4 The preparation method of active substance dilution comprises the following steps:

[0042] In the first step, the copper source and the cobalt source are added into the glycerol according to the molar ratio of 1:2, and the amount of the glycerol is 23 times of the total mass of the copper source and the cobalt source, stirring rapidly until the copper source and the cobalt source are completely until dissolved in glycerol;

[0043] In the second step, the sulfur source is weighed according to the molar ratio of copper source, cobalt source, and sulfur source as 1:2:4, and deionized water is slowly added dropwise to the sulfur source, and stirred while dropping until the sulfur source is completely dissolved;

[0044] Step 3: Mix the solutions obtained in the previous two s...

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Abstract

The invention relates to CuCo2S4 active substance diluent for a super-capacitor and a preparation method thereof. The preparation method comprises the following steps: putting copper source and cobalt source into glycerol in the active substance synthesis process, fast stirring, adding the sulfur source dissolved by using deionized water after the copper source and the cobalt source are completely dissolved, transferring to a high-voltage reaction kettle to perform the solve thermal reaction after the sufficient stirring; pouring out the mixed solution containing nanocrystal after the reaction is finished, diluting and centrifuging through the deionized water, drying to obtain the active substance-CuCo2S4 nanocrystal; and putting the CuCo2S4 nanocrystal into an ethanol solvent, taking the polyvinylpyrrolidone as the dispersing agent, namely acquiring the active substance diluent. The method disclosed by the invention has the advantages that the defect of the prior art can be overcome, the active substance with high specific ratio capacitance activity, high dispersity, good stability and easy industrial manufacturing for the super-capacitor can be acquired.

Description

technical field [0001] The invention belongs to the field of energy storage materials, and relates to a capacitor active material capable of highly reversible oxidation-reduction reactions, in particular to a CuCo material used for supercapacitors. 2 S 4 Active substance diluent and method for its preparation. Background technique [0002] Since the beginning of the 21st century, with the continuous advancement of science and technology and the continuous development of the economy and society, human beings have an increasing demand for non-renewable resources such as coal, fuel oil, and natural gas, and the ensuing global warming and environmental pollution are also increasing. It's getting serious. This triggered an upsurge of scientists' research on a new generation of energy materials, and photovoltaic cells, fuel cells, lithium-ion batteries, etc. came into being. In order to better play the role of a new generation of clean energy, it is very important to design dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30
CPCH01G11/30Y02E60/13
Inventor 蔡星伟赵玉媛高延敏陆君左银泽郭永春黄翠萍周真张毅
Owner JIANGSU UNIV OF SCI & TECH
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