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Preparation method of flower-shaped Cu2SnS3 flexible supercapacitor electrode materials

A technology for supercapacitors and electrode materials, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors, etc. It can solve the problems of poor crystallinity and complicated manufacturing process, and achieve the effect of high crystallinity and simple preparation methods

Inactive Publication Date: 2018-05-08
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing techniques to prepare Cu 2 SnS 3 They are all preferentially using thermal sputtering, but they have poor crystallinity and complicated manufacturing process

Method used

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  • Preparation method of flower-shaped Cu2SnS3 flexible supercapacitor electrode materials
  • Preparation method of flower-shaped Cu2SnS3 flexible supercapacitor electrode materials
  • Preparation method of flower-shaped Cu2SnS3 flexible supercapacitor electrode materials

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Experimental program
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Effect test

Embodiment 1

[0017] Step 1: Flower-like Cu 2 SnS 3 Synthesis of electrode materials: 4mmol CuCl 2 .2H 2 0,2mmol SnCl 4 and 6mmolTAA (thioacetamide), fully mixed evenly, stirred strongly for 2 hours, and then put the treated carbon cloth with an area of ​​2cm*2cm into the reaction kettle. Then it is transferred to the reactor, add an equal amount of deionized water and ethylene glycol (or polyethylene glycol) respectively, so that the volume ratio of the two is 1:1, the reactor is transferred to the incubator, and The temperature was adjusted to 200° C., and the temperature was maintained for 9 hours. and other prepared Cu 2 SnS 3 Compared with the reaction, the reaction time is shortened and the experimental cycle is reduced.

[0018] Step 2: After the reaction kettle was cooled to room temperature, the obtained product was centrifuged and washed three times with deionized water and ethanol, and the obtained carbon cloth was rinsed with deionized water and absolute ethanol respectiv...

Embodiment 2

[0022] Step 1: Add CuCl 2 .2H 2 0. SnCl 4 , Thioacetamide is evenly mixed in a molar ratio of 2:1:3, then soak the clean carbon cloth in the mixed solution;

[0023] Step 2: Add deionized water and ethylene glycol mixed solution with a volume ratio of 1:1, the volume of the added deionized water and ethylene glycol mixed solution is the same as the volume of the mixed solution obtained in step 1, and mix well;

[0024] Step 3: Place the solution obtained in Step 2 in a dry environment at high pressure and 200°C, and dry it for 7 hours;

[0025] Step 4: After the reaction, the carbon cloth is attached with flower-like Cu 2 SnS 3 , washed with deionized water and absolute ethanol, and the washed carbon was dried in a vacuum environment at 60°C;

[0026] Step 5: Dry the finished Cu 2 SnS 3 The carbon cloth is used as the positive and negative electrodes of the supercapacitor.

[0027] figure 2 , image 3 : is the SEM picture of prepared material, as shown in the Cu pre...

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Abstract

The present invention discloses a preparation method of flower-shaped Cu2SnS3 flexible supercapacitor electrode materials, belongs to the technical field of synthesis and preparation of supercapacitormaterials and especially relates to a manufacturing method of flower-shaped Cu2SnS3 flexible supercapacitor electrode materials. The flower-shaped Cu2SnS3 prepared by the invention through reaction is simple in preparation method and good in crystallinity, has a large specific surface area and a small mesopore, provides more reaction active sites and shortens an ion transmission path, and shows asuperhigh specific capacity and an excellent multiplying power performance thereof in a strongly basic aqueous solution; the flower-shaped Cu2SnS3 is subjected to in-situ growth on carbon cloth to reduce the contact resistance of electrode materials; and moreover, the flower-shaped Cu2SnS3 flexible supercapacitor electrode materials themselves are high in crystallinity, high in specific capacityand good in energy density, and are a latent excellent supercapacitor electrode materials.

Description

technical field [0001] The invention belongs to the technical field of synthesis and preparation of supercapacitor materials, in particular to a flower-shaped Cu 2 SnS 3 The fabrication method of the flexible supercapacitor. Background technique [0002] Supercapacitor is a new type of energy storage device between electrolytic capacitors and batteries. It has the characteristics of long cycle life and high current charge and discharge. It has a broad application market and is a research hotspot in the field of new energy. Compared with conventional secondary batteries, it has many advantages such as high power density, fast charge and discharge, good cycle stability and wide operating temperature range. According to the energy storage mechanism, supercapacitors can be roughly divided into two categories: 1. Electric double layer capacitors, which store charges mainly based on charge accumulation at the porous electrode / electrolyte interface. 2 Pseudocapacitive capacitors...

Claims

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Application Information

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IPC IPC(8): H01G11/24H01G11/30H01G11/32H01G11/86
CPCY02E60/13H01G11/24H01G11/30H01G11/32H01G11/86
Inventor 王超田瀚卿姜晶何欣芮牛夷张蕊王楚珺
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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