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A preparation method for printing supercapacitors based on ag/ppy composite nanomaterials

A composite nanomaterial, supercapacitor technology, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of electrical conductivity, specific surface area, and capacitive performance, and achieve electrical performance improvement and capacitive performance improvement. , the effect of simple operation

Active Publication Date: 2019-05-24
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The preparation of structure-controllable Ag / PPy (silver / polypyrrole) composite nanomaterials is a research hotspot in this field. Different shapes and structures will affect the conductivity and specific surface area of ​​Ag / PPy composite nanomaterials. affect, thereby affecting its capacitive performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The specific preparation process is as follows: 1) 0.05g of silver nitrate, 0.2g of polyvinylpyrrolidone (PVP) and 0.02g of acetate were sequentially added into 20mL of water and stirred. Subsequently, the mixed solution was stirred at room temperature for 30 min, and 0.25 mL of pyrrole monomer and 10 mL of 0.3 mol / L ferric chloride aqueous solution were respectively added through a peristaltic pump at a speed of 600 μL / min, and the reaction was continued for 2 h. 2) cleaning the synthesized Ag / PPy composite nanomaterial and preparing Ag / PPy particles, the specific method is: the obtained product is cleaned more than 3 times by centrifugation at 10,000 rpm for 10 minutes with ethanol, and then dispersed in in anhydrous ethanol, and make the mass fraction reach 60%, and dry under the condition of 60° C. in an oven for 6 hours. 3) To prepare Ag / PPy ink, the specific method is: according to the mass ratio of 8:1:1, add 0.8g Ag / PPy composite nanoparticles, 0.1g conductive c...

Embodiment 2

[0019] The specific preparation process is as follows: 1) 0.5g of silver nitrate, 2.0g of polyvinylpyrrolidone (PVP) and 0.2g of acetate were sequentially added into 200mL of water and stirred. Subsequently, the mixed solution was stirred at room temperature for 30 min, and 2.5 mL of pyrrole monomer and 100 mL of 0.3 mol / L ferric chloride aqueous solution were respectively added through a peristaltic pump at a speed of 600 μL / min, and the reaction was continued for 2 h. 2) cleaning the synthesized Ag / PPy composite nanomaterial and preparing Ag / PPy particles, the specific method is: the obtained product is cleaned more than 3 times by centrifugation at 10,000 rpm for 10 minutes with ethanol, and then dispersed in in anhydrous ethanol, and make the mass fraction reach 60%, and dry under the condition of 60° C. in an oven for 6 hours. 3) According to the mass ratio of 8:1:1, add 8g Ag / PPy composite nanoparticles, 1g conductive carbon black and 1g epoxy resin to 50mL water to prep...

Embodiment 3

[0021] The specific preparation process is as follows: 1) 0.08g of silver nitrate, 0.32g of polyvinylpyrrolidone (PVP) and 0.032g of acetate were sequentially added into 30mL of water and stirred. Subsequently, the mixed solution was stirred at room temperature for 30 min, and 0.4 mL of pyrrole monomer and 16 mL of 0.3 mol / L ferric chloride aqueous solution were respectively added through a peristaltic pump at a speed of 600 μL / min, and the reaction was continued for 2 h. 2) cleaning the synthesized Ag / PPy composite nanomaterial and preparing Ag / PPy particles, the specific method is: the obtained product is cleaned more than 3 times by centrifugation at 10,000 rpm for 10 minutes with ethanol, and then dispersed in in anhydrous ethanol, and make the mass fraction reach 60%, and dry under the condition of 60° C. in an oven for 6 hours. 3) According to the mass ratio of 8:1:1, add 1.6g Ag / PPy composite nanoparticles, 0.2g conductive carbon black and 0.2g epoxy resin to 10mL water...

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Abstract

The invention relates to a fabrication method of an Ag / PPy composite nanometer material-based printed supercapacitor. Acetate is introduced to the fabrication process of an Ag / PPy composite nanometermaterial, so that the obtained Ag / PPy composite nanometer material has a legume-shaped core-shell structure, the capacitance performance of the material is favorably improved, and a flexible and solid-state supercapacitor is fabricated by selecting different flexible substrates and printing silver paste, the synthesized Ag / PPy composite nanometer material and a PVA-H3PO4 solid-state electrolyte byemploying silk-screen printing mode. The energy density of the supercapacitor manufactured by the method can reach 4.33 micro watt hour per square meter, 77.6% of unit specific capacitance is still maintained after the supercapacitor is bent for 1,000 times, 82.6 of unit specific capacitance is still maintained after the supercapacitor is bent for 10,000 times, the supercapacitor is low in cost,and substitution and supplement of a traditional high-cost energy storage device are achieved; and moreover, the supercapacitor has the advantages of simple reaction step, short reaction time and thelike, is simple and convenient to operate, can be used for industrial mass fabrication and production and can be applied to the field of flexible energy storage, and the synthesis method is clean andenvironmental-friendly and is suitable for promotion and application.

Description

technical field [0001] The invention relates to a method for preparing a printed supercapacitor based on Ag / PPy composite nanomaterials. Background technique [0002] Supercapacitor (Supercapacitor) is a new type of energy storage device, which has the characteristics of short charging time, long service life, good temperature characteristics, energy saving and environmental protection, so supercapacitors are widely used. Due to the increasing shortage of petroleum resources, and the pollution of the environment by exhaust emissions from internal combustion engines burning petroleum is becoming more and more serious (especially in large and medium-sized cities), the increase of solid particles in the air has a great impact on the human body, and people are studying alternatives. New Energy Devices for Internal Combustion Engines. Research and development of hybrid power, fuel cells, and chemical battery products and applications have been carried out, and certain results ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/84H01G11/86H01G11/30H01G11/48
CPCY02E60/13
Inventor 吴伟刘力
Owner WUHAN UNIV
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