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Preparation method of flexible hybrid supercapacitor electrode

A supercapacitor and flexible technology, applied in the field of supercapacitor electrode preparation, can solve the problems of poor charging and discharging stability of supercapacitors, easy changes in the volume of metal oxides, and high price of metal ruthenium, etc., to achieve increased conductivity and good Conductivity and long service life

Active Publication Date: 2017-03-22
BOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high price of metal ruthenium largely hinders the development of RuO 2 Further applications as electrode materials for supercapacitors
Although other metal oxides are relatively cheap, there are the following problems: first, the metal oxide is easily dissolved in the electrolyte during the charging and discharging process; second, the volume of the metal oxide is easy to change during the charging and discharging process , destroys the previous excellent structure, resulting in poor charging and discharging stability of the supercapacitor and short lifespan

Method used

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  • Preparation method of flexible hybrid supercapacitor electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Inject 2g of alkyl naphthalene sulfonate dispersant into the mixer, add 2g of deionized water, and stir for 20 minutes; add 5g of Ketjen black, 3g of conductive carbon black and 2g of conductive graphite for premixing for 15 minutes, and then pour into Stir in the stirrer for 30 min; then add 2 g of hydroxymethyl cellulose solution with a mass fraction of 3%, and stir for 30 min; then add 78 g of activated carbon in three times and stir for 16 h, each addition is 26 g; add 8 g of a mass fraction of 50% Add the styrene-butadiene rubber emulsion into the stirrer and stir for 12 hours to obtain the ink-like activated carbon slurry, and obtain the carbon material electrode active material;

[0025] Step 2: inject the carbon material electrode active material prepared in step 1 into the ink cartridge of the inkjet printer, and use the inkjet printing method to apply the carbon material electrode active material on the front and back sides of the nickel foil with a thi...

Embodiment 2

[0029] Step 1: Inject 2g of alkyl naphthalene sulfonate dispersant into the mixer, add 2g of deionized water, and stir for 20 minutes; add 5g of Ketjen black, 3g of conductive carbon black and 2g of conductive graphite for premixing for 15 minutes, and then pour into Stir in the stirrer for 30 min; then add 2 g of hydroxymethyl cellulose solution with a mass fraction of 3%, and stir for 30 min; then add 78 g of activated carbon in three times and stir for 16 h, each addition is 26 g; add 8 g of a mass fraction of 50% Add the styrene-butadiene rubber emulsion into the stirrer and stir for 12 hours to obtain the ink-like activated carbon slurry, and obtain the carbon material electrode active material;

[0030] Step 2: inject the carbon material electrode active material prepared in step 1 into the ink cartridge of the inkjet printer, and use the inkjet printing method to apply the carbon material electrode active material on the front and back sides of the nickel foil with a thi...

Embodiment 3

[0034] Step 1: Inject 1.8g of alkylnaphthalene sulfonate dispersant into the mixer, add 2g of deionized water, and stir for 15 minutes; add 5.4g of Ketjen black, 2.7g of conductive carbon black and 1.9g of conductive graphite for pre-mixing for 20 minutes, Then pour it into a stirrer and stir for 25 min; then add 2.5 g of hydroxymethyl cellulose solution with a mass fraction of 3%, and stir for 25 min; then add 78.9 g of activated carbon in three times and stir for 12 h, each addition is 26.3 g; 9g of styrene-butadiene rubber emulsion with a mass fraction of 45% was added to a stirrer and stirred for 16 hours to obtain an ink-like activated carbon slurry, and a carbon material electrode active material was obtained;

[0035] Step 2: Inject the carbon material electrode active material prepared in step 1 into the ink cartridge of the inkjet printer, and use the inkjet printing method to spray the carbon material electrode active material on the front and back sides of the mangan...

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Abstract

A preparation method for a flexible hybrid supercapacitor electrode, mixing and stirring a dispersant and deionized water, then adding a conductive agent for premixing, pouring into a stirrer and stirring, then adding a hydroxymethyl cellulose solution, and pouring into the stirrer After continuing to add activated carbon and stir, add the binder and stir to obtain the carbon material electrode active material; inject the carbon material electrode active material into the ink cartridge of the inkjet printer, and use the inkjet printing method to print the carbon material electrode active material on the front and back of the nickel foil. The two surfaces are sprayed with a carbon material electrode active material layer, placed in a tube furnace, filled with oxygen, and calcined to obtain a flexible hybrid supercapacitor electrode material. The advantages are: easy to obtain raw materials, low cost, good charge and discharge stability, long service life, avoiding the dissolution of metal oxide active substances by electrolytes, so that supercapacitors have large capacity, high energy density, wide operating temperature range and long service life. Features to meet the charging and discharging needs of capacitors for different electrical appliances.

Description

technical field [0001] The invention belongs to the field of supercapacitor electrode preparation, in particular to a method for preparing a flexible hybrid supercapacitor electrode. Background technique [0002] A supercapacitor is a new type of energy storage device between traditional capacitors and rechargeable batteries. Compared with traditional capacitors, supercapacitors have the characteristics of large capacity, high power density, wide operating temperature range and long service life, but the energy density of supercapacitors is much lower than that of traditional batteries, which improves the energy density of supercapacitor systems The key to becoming a supercapacitor. [0003] The hybrid system composed of supercapacitor materials, that is, the use of materials with redox activity and activated carbon to form a hybrid supercapacitor, such as activated carbon / graphite, activated carbon / metal oxide and activated carbon / polymer, is achieved by improving the elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/86
CPCY02E60/13
Inventor 蔡克迪葛芳钟克利姜海静吴昊张亮刘凡武云雍郎笑石蒲薇华
Owner BOHAI UNIV