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Flexible supercapacitor and manufacturing method thereof

A supercapacitor and flexible technology, applied in the field of capacitors, can solve the problems of damage to the film, complicated operation methods, damage, etc., and achieve the effects of low preparation cost, simple packaging method, and simple operation method.

Inactive Publication Date: 2014-07-23
UNIV OF ELECTRONIC SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the preparation process of this type of supercapacitor, there are the following defects: First, the preparation method of the conductive polymer film layer in the supercapacitor is complicated, and it needs to be deposited on a conductive substrate first, and then removed from the substrate after drying. The operation method is complicated, and the film may be damaged during the removal process; second, the removal of the conductive polymer from the substrate has certain requirements on the film itself and the preparation conditions, and the conductive polymer itself needs to be able to form a flexible film, which makes This method has certain requirements and restrictions on the electrode material in the actual application process; the third is that the inorganic electrode material itself cannot form a flexible film with good toughness, and may cause damage during the removal process, which also limits the application of the method. widely used

Method used

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  • Flexible supercapacitor and manufacturing method thereof
  • Flexible supercapacitor and manufacturing method thereof

Examples

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Embodiment 1

[0022] The preparation method of a flexible supercapacitor obtained by using polyaniline as electrode material, organic filter membrane as ion permeable membrane, copper foil as electrical contact, PET as packaging material, and KOH as electrolyte:

[0023] Step 1: Cut the organic filter membrane into a size of 6cm×8cm, and clean the surface with degreaser, deionized water and absolute ethanol in sequence;

[0024] Step 2: In a 500mL beaker, add 340mL of deionized water, 8mL of concentrated sulfuric acid and 3mL of aniline monomer, stir for 30min to make it evenly mixed;

[0025] Step 3: Put the organic filter membrane cleaned in step 1 into the mixed solution obtained in step 2 above, and stir at a constant speed for 2 hours;

[0026] Step 4: Dissolve 2 g of ammonium persulfate in 60 mL of deionized water, add the ammonium persulfate solution dropwise into the mixed solution soaked in the organic filter membrane in step 3 using a dropping funnel, and stir at a constant speed ...

Embodiment 2

[0033] The preparation method of a flexible supercapacitor obtained by using nickel hydroxide as electrode material, organic filter membrane as ion permeable membrane, copper foil as electrical contact, PET as packaging material, and KOH as electrolyte:

[0034] Step 1: Cut the organic filter membrane into a size of 6cm×8cm, and clean the surface with degreaser, deionized water and absolute ethanol in sequence;

[0035] Step 2: Add 10.5 g of nickel sulfate to 40 mL of deionized water to obtain a uniform nickel sulfate solution; add 2.03 g of potassium persulfate to 30 mL of deionized water to obtain a solution of potassium persulfate;

[0036] Step 3: Mix nickel sulfate solution and potassium persulfate solution evenly, add 20mL of 25% (mass fraction) ammonia water to form a mixed solution, put the organic filter membrane cleaned in step 1 into the mixed solution and stir at a constant speed for 30 minutes;

[0037] Step 4: After the reaction is over, take out the organic filt...

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Abstract

The invention discloses a flexible supercapacitor and a manufacturing method thereof, and belongs to the field of capacitors. The flexible supercapacitor comprises two layers of electrode material thin films spaced by an ion permeable membrane, and comprises electrolytes arranged between the two layers of the electrode material thin films and electric contacts arranged on the outer surfaces of the two layers of the electrode material thin films, wherein the two layers of the electrode material thin films are deposited on the surfaces of the ion permeable membrane by adopting a chemical depositing or blade coating or steeping method. The flexible supercapacitor is simple in manufacturing technology, low in cost and suitable for conducting polymer electrode materials and inorganic electrode materials.

Description

technical field [0001] The invention belongs to the field of capacitors, and in particular relates to a flexible supercapacitor and a preparation method thereof. Background technique [0002] A supercapacitor is an energy storage element between a battery and a traditional capacitor, capable of rapid charge and discharge, and based on the electrochemical process at the electrode / solution interface. Due to the advantages of high energy density, long cycle life, environmental friendliness and high safety, supercapacitors have been widely used in transportation, mobile communications, information technology, aerospace and defense technology and other fields. The storage mechanism of supercapacitors includes electrochemical double-layer supercapacitors and redox supercapacitors (pseudocapacitors). Electrochemical double-layer capacitors are different in that they mainly use fast and reversible redox reactions on or near the surface of the electrodes to store energy. [0003] W...

Claims

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Application Information

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IPC IPC(8): H01G11/22H01G11/30
CPCY02E60/13
Inventor 贾春阳陈俊万中全
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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