An all-solid-state flexible supercapacitor and a preparation method thereof

A supercapacitor and all-solid-state technology, applied in the field of energy storage, can solve problems such as toxicity, safety hazards of supercapacitors, and non-compliance with the development trend of green environmental protection materials and devices, and achieve the effects of low cost, abundant sources, and low preparation cost

Inactive Publication Date: 2018-12-21
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many transition metal oxides, such as nail oxide and vanadium oxide, are toxic in themselves, which will cause safety hazards for supercapacitors, and also do not conform to the development trend of future green environmental protection materials and devices.

Method used

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  • An all-solid-state flexible supercapacitor and a preparation method thereof
  • An all-solid-state flexible supercapacitor and a preparation method thereof
  • An all-solid-state flexible supercapacitor and a preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation of the used sodium copper chlorophyllin electrode, its specific process is as follows:

[0028] (1) Weigh sodium copper chlorophyllin and binder PVDF according to the mass ratio of 8.5:1.5, and pour them into a small beaker. An appropriate amount of organic solvent NMP was added dropwise, and magnetically stirred for about 4 hours.

[0029] (2) Cut the nickel foam according to the specifications of 2cm×2cm, and draw two strips from the corners as electrode contacts.

[0030] (3) Take out the evenly stirred slurry, apply the slurry evenly on the nickel foam with a film applicator, place the electrode in a vacuum drying oven at 100 ℃ to dry, take it out and use it as an electrode material.

[0031] The fabrication process of the supercapacitor based on sodium copper chlorophyllin electrode is as follows:

[0032] 1) Add 4g of PVA to 40mL of ultrapure water, raise the temperature to 95°C under mechanical stirring, and continue stirring until the solution ...

Embodiment 2

[0040] The preparation of the used sodium copper chlorophyllin electrode, its specific process is as follows:

[0041] (1) Weigh sodium copper chlorophyllin and binder PVDF according to the mass ratio of 8.5:1.5, and pour them into a small beaker. An appropriate amount of organic solvent NMP was added dropwise, and magnetically stirred for about 4 hours.

[0042] (2) Cut the nickel foam according to the specifications of 2cm×2cm, and draw two strips from the corners as electrode contacts.

[0043] (3) Take out the evenly stirred slurry, apply the slurry evenly on the nickel foam with a film applicator, place the electrode in a vacuum drying oven at 100 ℃ to dry, take it out and use it as an electrode material.

[0044] The fabrication process of the supercapacitor based on sodium copper chlorophyllin electrode is as follows:

[0045] 1) Mix 8 g of PVA and 5.7 mL of H 2 SO 4 Add it to 110mL of ultrapure water, put it into a water bath, raise the temperature to 90°C under me...

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Abstract

The invention relates to an all-solid-state flexible supercapacitor and a preparation method thereof. The invention uses sodium copper chlorophyll as conductive polymer, prepares sodium copper chlorophyll electrode material, and assembles the supercapacitor. As an edible pigment, the sodium copper chlorophyll is a green electrode material for sthe upercapacitor, and it has abundant sources and lowcost.

Description

technical field [0001] The invention belongs to the technical field of energy storage, and relates to an all-solid flexible supercapacitor and a preparation method thereof, in particular to a novel supercapacitor based on sodium copper chlorophyllin as an electrode material. Background technique [0002] Among the factors affecting the performance of supercapacitors, the electrode material is the most critical factor. It is the material basis for the electrode to store charge and generate capacitance. Its own electrochemical performance directly affects the electrochemical performance of supercapacitors. The materials currently used for supercapacitor electrodes are mainly divided into three categories, including: carbon electrode materials, metal oxide materials, and conductive polymer materials. Among them, the earliest studied and most widely used electrode material is carbon electrode material, including activated carbon powder, activated carbon fiber, carbon nanotube, c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/48H01G11/84
CPCH01G11/48H01G11/84Y02E60/13
Inventor 阮凯斌陈丽敏王玉柱胡启昌龙博
Owner FUJIAN AGRI & FORESTRY UNIV
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