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An electrode based on a flexible polyester wire substrate, a preparation method thereof, and a wearable supercapacitor

A polyester thread, flexible technology, applied in the field of wearable supercapacitors, to achieve the effect of easy acquisition, large specific capacity and good compatibility

Active Publication Date: 2018-12-25
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, there are few studies on the flexible substrate of flexible supercapacitors, and the expansion of flexible substrates has always been one of the focuses of researchers in the field of supercapacitor technology.

Method used

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  • An electrode based on a flexible polyester wire substrate, a preparation method thereof, and a wearable supercapacitor
  • An electrode based on a flexible polyester wire substrate, a preparation method thereof, and a wearable supercapacitor
  • An electrode based on a flexible polyester wire substrate, a preparation method thereof, and a wearable supercapacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0095] Embodiment 1 Preparation of flexible polyester thread substrate

[0096] This embodiment carries out the preparation of flexible polyester line substrate, comprises the following steps:

[0097] 1) Cleaning and degreasing: Soak the polyester thread in an acetone solution with a mass fraction greater than or equal to 99.5% at room temperature for 7-8 hours, take it out, rinse it with deionized water 4-5 times, and then ultrasonically clean it in an ultrasonic cleaner for 5 minutes.

[0098] 2) Coarseness: according to 4g (NH 4 ) 2 S 2 o 8 , 20ml H 2 O, 0.5ml concentrated H 2 SO 4 The ratio of preparation (NH 4 ) 2 S 2 o 8 Solution, put the polyester thread obtained in step 1) into (NH 4 ) 2 S 2 o 8 In the solution, stir in a constant temperature water bath at 40°C for 1.5h to 2h, take it out, rinse it with deionized water 4-5 times, and then ultrasonically clean it in an ultrasonic cleaner for 5min.

[0099] 3) Neutralization: according to 1g NaOH, 9ml H ...

Embodiment 2

[0103] Example 2 Fe 2 o 3 Preparation of (NP)-Ni-polyester wire electrode

[0104] This embodiment carries out the preparation of electrode, Fe 2 o 3 (NP) refers to Fe 2 o 3 Nanoparticles, comprising the steps of:

[0105] 1) According to 9g NiSO 4 ·6H 2 O, 7g NaH 2 PO 2 , 4g CH 3 COONa, 0.00004g C 4 h 4 o 6 KNa·4H 2 O, 2gC 6 h 5 Na 3 o 7 2H 2 O, 300ml H 2 The proportion of O is used to prepare an electroless plating solution, and the flexible polyester thread substrate prepared in Example 1 is placed in the electroless plating solution for plating. The temperature of the plating is 50° C., and the time of plating is 20 minutes, and every 5 minutes Stir the electroless plating solution once to ensure uniform plating. After plating, clean it with deionized water and dry it.

[0106] In this step, a Ni-polyester wire with a current collector nickel layer grown on a flexible polyester wire substrate is obtained, and an electrical test is performed on it, and ...

Embodiment 3

[0109] Example 3 Fe 2 o 3 Preparation of (NW)-Ni-polyester wire electrodes

[0110] This embodiment carries out the preparation of electrode, Fe 2 o 3 (NW) means Fe 2 o 3 nanowires, comprising the steps of:

[0111] 1) This step is the same as 1) step in Example 2.

[0112] 2) Put 0.002mol iron trichloride hexahydrate FeCl 3 ·6H 2 O and 0.0025mol sodium sulfate Na 2 SO 4 10H 2 O was dissolved in 100mL of water, ferric chloride hexahydrate was used as the main salt, and sodium sulfate was used as a stabilizer. Then, the Ni-polyester thread obtained in step 1) and the mixed aqueous solution were placed in a reaction kettle, and dried in a drying oven at 100 ° C. After 40min of hydrothermal reaction, Fe can be grown on Ni-polyester wire 2 o 3 nanowires, get Fe 2 o 3(NW)-Ni-polyester wire electrodes.

[0113] 3) After the hydrothermal reaction, the color of the solution changed from light yellow to orange, indicating that the hydrothermal reaction occurred and iron...

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Abstract

The invention belongs to the technical field of supercapacitors, in particular to an electrode based on a flexible polyester wire substrate, a preparation method thereof and a wearable supercapacitor.The invention provides a flexible polyester wire substrate, comprising: treated polyester wire and a metal with catalytic activity; the catalytically active metal is bonded to the surface of the treated polyester yarn. The flexible polyester filament substrate provided by the invention takes polyester filament as raw material, has wide raw material source, is easy to obtain, and has the advantages of simple processing technology, low price and green environmental protection. The treated polyester wires have porous structure, large specific capacity and specific surface area, good compatibility with catalytically active metals, and it is easy to grow current collector such as a nickel layer on the surface of the flexible polyester wire substrate, which is convenient for the subsequent preparation of electrodes.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, and in particular relates to an electrode based on a flexible polyester thread substrate, a preparation method thereof, and a wearable supercapacitor. Background technique [0002] Supercapacitors include electric double-layer capacitors and pseudocapacitors. Electric double-layer capacitors use positive and negative ions to adsorb on the surface between the electrodes and the electrolyte, causing a potential difference between the two solid electrodes, thereby realizing energy storage; pseudocapacitors are used in Fast and reversible redox reactions within a certain potential range occur on the electrode surface and its vicinity to realize energy storage. Supercapacitor is a new type of energy storage device between traditional capacitors and chemical batteries. Its energy storage process is reversible, so it can be repeatedly charged and discharged hundreds of thousands of times, with s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/26H01G11/28H01G11/86
CPCH01G11/26H01G11/28H01G11/86Y02E60/13
Inventor 庄芹芹李娜杨桥刘星麦剑锋
Owner GUANGDONG UNIV OF TECH
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