A novel wearable supercapacitor fabric and its preparation method

A technology of supercapacitors and capacitors, applied in the manufacture of hybrid/electric double layer capacitors, fabrics, textiles, etc., can solve the problems of increasing the quality of supercapacitor units, increasing the quality of supercapacitor fabrics, reducing wearing comfort, etc., and achieving high energy density. , the effect of high operating voltage and high storage energy

Active Publication Date: 2021-01-26
安徽飞象山科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This undoubtedly increases the quality of each supercapacitor unit, which in turn makes the quality of the woven supercapacitor fabric greatly increased, and the flexibility becomes poor, and the wearing comfort decreases.

Method used

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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  • A novel wearable supercapacitor fabric and its preparation method
  • A novel wearable supercapacitor fabric and its preparation method
  • A novel wearable supercapacitor fabric and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] First, the strip-shaped CNT film electrodes were cleaned with concentrated nitric acid and dried for later use; then two pieces of CNT strip-shaped electrodes were adhered to the PVA-H 3 PO 4 The two sides of the solid electrolyte diaphragm are slightly compacted so that the electrodes and the diaphragm are in close contact with each other, so that a strip-shaped flexible all-solid supercapacitor is obtained. Four more strip-shaped supercapacitors were taken, and according to the design of the parallel structure, they were cross-woven into the required supercapacitor fabric for higher energy storage. The parallel weaving method described in this process is shown in the attached figure 1 For a, see the improvement effect on storage energy figure 2 , it can be seen that the increase of the covered area of ​​the curve will increase the capacitance and thus the stored energy. The morphology of the CNT used is shown in image 3 .

Embodiment 2

[0028] First, the capacitive active material MnO was deposited by electrochemical deposition 2 Deposited on the CNT film after cleaning and drying with concentrated nitric acid to prepare flexible composite electrodes, and then assembled with PVA-KOH gel electrolyte diaphragm to form a strip-shaped all-solid supercapacitor. Six such strip-shaped supercapacitors were taken, and according to the design of the parallel structure, they were cross-woven into the required supercapacitor fabric for higher energy storage. See the woven supercapacitor fabric in kind Figure 4 .

Embodiment 3

[0030] First, polyaniline (PANI) was deposited onto the graphene film by electrochemical polymerization to prepare a flexible composite electrode, and then combined with PVA-H 2 SO4 The gel electrolyte separators are assembled together into a strip-shaped all-solid-state supercapacitor. 32 strip-shaped supercapacitors were taken, and according to the design of the series structure, they were cross-woven into the required supercapacitor fabric to obtain a higher operating voltage. Further, a layer of polyester tulle is laid on the upper and lower surfaces of the capacitor fabric, and the edges and insides of the two layers of tulle (corresponding to the intersections of each strip capacitor) are sewn together to reduce the wear and tear of the supercapacitor unit , cut off the direct contact with the wearer, and increase the service life of the supercapacitor fabric.

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 discloses a novel wearable supercapacitor fabric and a preparation method thereof, belonging to the technical field of energy storage. In this invention, a strip-shaped all-solid-state supercapacitor is first prepared by using a flexible film as an electrode material, and then a supercapacitor fabric composed of a plurality of strip-shaped capacitor units combined in a certain way is obtained by weaving. The outstanding feature of this fabric is that the electrodes of different capacitor units are connected to each other at the intersection, so that the capacitor units are connected in series or parallel, so that higher storage energy or higher operating voltage can be obtained for different capacitor units. Occasion wear. The invention skillfully utilizes the series-parallel connection theory of supercapacitors and the traditional cross weaving technology, avoids the introduction of insulating layers between capacitor units, and realizes the preparation of a new type of wearable supercapacitor fabric, which has broad application prospects.

Description

technical field [0001] The invention belongs to the technical field of energy storage, and in particular relates to a novel wearable supercapacitor fabric and a preparation method thereof. Background technique [0002] The development of modern electronics requires the use of flexible devices for energy conversion and storage, thus wearable smart textiles have been flourishing and have shown important application prospects in portable electronic devices. Supercapacitors have high energy density and outstanding power density, short charge and discharge time, and excellent cycle life. Flexible supercapacitors have been made into wearable power systems due to their flexible processing methods, tailoring and bending properties, and have been applied to various portable electronic devices. [0003] The energy storage system currently used for weaving has a one-dimensional fiber energy storage system and a long strip energy storage system. For example, Gao Chao et al. (Nat. Comm...

Claims

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D15/00H01G11/84
CPCD03D15/00H01G11/84Y02E60/13
Inventor 孟凡成林长浩龙涛徐领松王壮壮魏香风刘节华
Owner 安徽飞象山科技发展有限公司
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