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Flexible thin film type solid-state super capacitor and its manufacture process

A supercapacitor, flexible film technology, applied in the field of capacitors, can solve the problems of high packaging requirements, low production efficiency, large volume, etc., and achieve the effect of good power characteristics and low internal resistance

Active Publication Date: 2008-04-16
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to solve the technical problems of high packaging requirements, large volume and low production efficiency of existing supercapacitors, the present invention provides a flexible film-type solid supercapacitor and its manufacturing method

Method used

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  • Flexible thin film type solid-state super capacitor and its manufacture process
  • Flexible thin film type solid-state super capacitor and its manufacture process
  • Flexible thin film type solid-state super capacitor and its manufacture process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of electrode slurry: Stir and mix 80 g of activated carbon, 10 g of carbon black, 10 g of polyvinylidene fluoride (PVDF) and 500 g of N-methylpyrrolidone for 3 hours.

[0033] (2) Preparation of electrolyte slurry: Mix 100g of polyvinyl alcohol powder (PVA) with 800g of deionized water, heat to 95°C and stir for 2 hours, then add 1g of SiO with a particle size of 2 The fine powder and 15 g of tetraethylammonium tetrafluoroborate were stirred for 10 hours and mixed uniformly.

[0034] (3) Preparation of external electrode slurry: Mix 10g of polyvinyl alcohol powder (PVA) with 100g of deionized water, heat to 90°C and stir for 1 hour, then add 20g of nickel powder (-200 mesh) and 10g of silver powder (-200 mesh), stirred for 2 hours.

[0035] (4) Preparation of encapsulation slurry: Stir and mix 50 g of polyvinylidene fluoride (PVDF) and 500 g of deionized water for 3 hours.

[0036] (5) Prepare printing templates for printing the outer electrode film, el...

Embodiment 2

[0044] (1) Electrode slurry preparation: 60 g of activated carbon, 25 g of manganese dioxide, 5 g of carbon black, 10 g of polyvinylidene fluoride (PVDF) and 500 g of N-methylpyrrolidone were stirred and mixed for 3 hours.

[0045] (2) Preparation of electrolyte slurry: mix 100g of polyvinyl alcohol powder (PVA) with 800g of deionized water, heat to 95°C and stir for 2 hours, then add 1g of SiO2 micropowder with a particle size of <5μm, and 15g of tetraethylammonium tetrafluoroborate , and stirred for 10 hours to mix well.

[0046] (3) Preparation of external electrode slurry: Heat 10g of polyvinylidene fluoride powder (PVDF) and 100g of N-methylpyrrolidone to 60°C and stir for 1 hour, then add 20g of nickel powder (-200 mesh) and 10g of silver powder (-200 mesh), stirred for 2 hours.

[0047] (4) Preparation of encapsulation slurry: Stir and mix 50 g of polyvinylidene fluoride (PVDF) and 500 g of deionized water for 3 hours.

[0048] (5) According to the process steps of Ex...

Embodiment 3

[0050] (1) Electrode slurry preparation: 85g of polypyrrole (PPy), 5g of carbon black, 10g of polyvinylidene fluoride (PVDF) and 500g of N-methylpyrrolidone were stirred and mixed for 3 hours.

[0051] (2) Electrolyte slurry preparation: mix 100g copolymer P (VDF-HFP) with 800g NMP, stir for 2 hours, add 30ml dibutyl phthalate (DBP), stir for 1 hour, then add 0.3g Al 2 o 3 Nano powder (average particle diameter<60nm), 15g tetraethylammonium tetrafluoroborate, stirred for 1 hour and mixed evenly.

[0052] (3) Preparation of external electrode slurry: Heat 10g of polyvinylidene fluoride powder (PVDF) and 100g of N-methylpyrrolidone to 60°C and stir for 1 hour, then add 20g of nickel powder (-200 days) and 10 grams of silver powder (-200 mesh), stirred for 2 hours.

[0053] (4) Preparation of encapsulation slurry: Stir and mix 50 g of polyvinylidene fluoride (PVDF) and 500 g of deionized water for 3 hours.

[0054] (5) According to the process steps of Example 1, the external ...

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Abstract

The invention discloses a flexible film type solid state super capacitor and a method for manufacturing the same; the flexible film type solid state super capacitor comprises a positive electrode, a negative electrode, an outer electrode and an encapsulation film, wherein a flexibility solid state electrolyte membrane is arranged between the positive and the negative electrodes. The manufacturing method is as follows: the outer electrode pasting, the electrode pasting, the flexibility solid state electrolyte pasting, the electrode pasting, the outer electrode pasting and the encapsulation pasting are orderly and precisely coated on a basal body by the printing technique; by fitting the corresponding pressing, drying, cutting and packaging techniques, the flexible film type solid state super capacitor with electrode-membrane-electrode structure is finally formed. The flexible film type solid state super capacitor has the advantages of low product internal resistance and good power characteristic, and is suitable for the large scale production and particularly applied to flexible electric products such as electric papers, intelligent name cards and plastics electric products, etc.

Description

technical field [0001] The invention relates to a capacitor, in particular to a flexible thin-film solid-state supercapacitor and a manufacturing method thereof. Background technique [0002] Capacitors are indispensable and important components in the electronics industry. Large-capacity capacitors from millifarads to farads can be used as energy storage devices for circuits, but traditional electrolytic capacitors must have a large volume to achieve millifarads to farads. [0003] Supercapacitor is a new type of energy storage device that has emerged in recent years. Its capacity can reach Farad levels or even thousands of Farads, which is several orders of magnitude larger than that of traditional electrolytic capacitors. It has the advantages of high power density of conventional capacitors and high energy density of rechargeable batteries, can be quickly charged and discharged, and has a long service life. [0004] Supercapacitors can be divided into two categories: el...

Claims

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Application Information

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IPC IPC(8): H01G9/00H01G9/15H01G9/025H01M10/00H01M14/00
CPCY02E60/13Y02E60/12H01G11/30
Inventor 李荐
Owner CENT SOUTH UNIV
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