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Fabric-based flexible supercapacitor and its manufacturing method

A technology for supercapacitors and manufacturing methods, which is applied in the manufacture of hybrid/electric double layer capacitors and electrodes of hybrid capacitors. It can solve the problems of complex electrode manufacturing process, affecting the service life of devices, and the influence of flexible fabrics, and achieve excellent specific capacitance and bending. Folding stability, long service life, and little effect on air permeability

Active Publication Date: 2022-05-17
EAST CHINA UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the organic solvent will affect the flexible fabric, thereby affecting the service life of the device
In this method, a very high carbonization temperature is used, the production cost is high, and the manufacturing process of the electrode is complicated

Method used

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  • Fabric-based flexible supercapacitor and its manufacturing method
  • Fabric-based flexible supercapacitor and its manufacturing method
  • Fabric-based flexible supercapacitor and its manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] Weigh 0.3 g of ammonium molybdate and 1.5 g of carboxymethyl cellulose in a beaker, add 60 g of deionized water, and stir with a magnetic stirrer until uniformly dissolved to obtain a molybdenum-containing coating solution in a gel state.

[0073] Next, prepare a clean 10cm×10cm cotton cloth as a fabric, uniformly coat the molybdenum-containing coating solution obtained above on one side of the cotton cloth by the doctor blade coating method, then put it in an oven, and dry it at 60 ° C for 4 hours , drying and curing the molybdenum-containing coating liquid, thereby obtaining a fabric with a molybdenum-containing coating.

[0074] Next, use a green laser with a laser wavelength of 532 nm to perform laser direct writing on the obtained fabric with molybdenum-containing coating, and the laser irradiation conditions are set as: the laser power is 0.25 W, and the scanning speed is 2.5 mm / s. By laser irradiation, the carboxymethyl cellulose in the molybdenum-containing coat...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention provides a fabric-based flexible supercapacitor with low manufacturing cost, simple manufacturing process, little influence on the air permeability of the fabric, excellent specific capacitance characteristics and bending stability and a manufacturing method thereof. The method includes mixing ammonium molybdate and carboxymethyl cellulose according to a specified ratio and dissolving them in water to prepare a molybdenum-containing coating liquid; uniformly coating the molybdenum-containing coating liquid on one side surface of a flexible fabric , and then dried and cured at a temperature of 40-80°C to form a fabric with a molybdenum-containing coating; use a green laser to irradiate the molybdenum-containing coating to carbonize the carboxymethyl cellulose in the molybdenum-containing coating to form a molybdenum-containing coating. Molybdenum composite conductive layer: cut the fabric with the molybdenum-containing composite conductive layer into a specified size to make an electrode sheet, and laminate the two electrode sheets in a way of sandwiching the electrolyte to obtain a supercapacitor. The flexible supercapacitor of the present invention is suitable for wearable electronic devices, and has broad application prospects in the fields of intelligent artificial limbs, biomedicine, robots and the like.

Description

technical field [0001] The invention relates to the field of supercapacitors, in particular to a method for forming a molybdenum-containing composite conductive layer on a fabric and thereby manufacturing a fabric-based flexible supercapacitor, and a fabric-based flexible supercapacitor manufactured by the method. Background technique [0002] With the rapid development of the global economy and industrial technology, energy issues have become the focus of attention of all countries in the world, and the development of renewable energy conversion and storage devices is particularly critical. The development of high-performance energy devices to meet the future requirements for simultaneously high energy density, high power density and long cycle life has always been a research hotspot and focus. Since 2012, with the entry of wearable electronic products represented by Google glasses and smart bracelets into the market, flexible / wearable devices have received great attention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/30H01G11/46H01G11/34H01G11/86H01G11/84
CPCH01G11/30H01G11/46H01G11/34H01G11/86H01G11/84Y02E60/13
Inventor 高阳轩福贞缪越钱敏温剑锋谈建平
Owner EAST CHINA UNIV OF SCI & TECH
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