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A friction nanogenerator based on fiber sliding and its preparation method

A nano-generator and fiber technology, applied in triboelectric generators, carbon fiber, fiber processing and other directions, can solve the problems of low power output, power generation performance needs to be improved, and no advantages are shown, and achieve the effect of improving power generation performance

Active Publication Date: 2022-03-08
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the conditions of an area of ​​20cm×30cm and a wind speed of 22m / s, the maximum voltage and current are about 40V and 30μA, respectively, and there is no advantage in effectively utilizing the friction between the flag fibers to collect wind energy. In addition, its electrical output is relatively low. Low, power generation performance needs to be improved

Method used

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  • A friction nanogenerator based on fiber sliding and its preparation method
  • A friction nanogenerator based on fiber sliding and its preparation method
  • A friction nanogenerator based on fiber sliding and its preparation method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0041]A frictional nanogenerator based on fiber sliding, including a main TENG and a secondary TENG, the main TENG is a cloth-like device woven from positive and negative fibers, and the positive fiber is wrapped and insulated on the surface of the positive conductive carbon fiber Resin film, the negative electrode fiber is coated with a layer of conductive metal on the basis of the positive electrode fiber, the positive electrode conductive carbon fiber and one end of the negative electrode conductive carbon fiber of the negative electrode fiber are respectively connected to the load, the positive electrode of the rectifier is connected to one end of the positive electrode conductive carbon fiber, The negative pole of the rectifier is connected to the conductive metal plating.

[0042] The sub-TENG is braided by metal-plated conductive textile wire and insulating resin-wrapped carbon fiber, in which the metal-coated conductive textile wire is used as the positive electrode, an...

Embodiment 2

[0045] The difference from Example 1 is that a triboelectric flag containing only the main TENG part is used. The entire flag uses CF@PDMS with a diameter of 0.8mm and conductive braided wire as the textile material. The size of the production is 20cm×30cm. The maximum output voltage generated when blowing at a wind speed of / s is 98V. It can be concluded that the charge generated by the friction between the secondary TENG materials is supplied to the main TENG, which can effectively increase the output voltage of the power generation device.

Embodiment 3

[0047] The difference from Example 1 is that under the condition of not being affected by the external wind force, a flag with a diameter of 0.8mm and an area of ​​20cm×30cm is used, in which the area of ​​the main TENG is 20cm×20cm, and the area of ​​the secondary TENG is 10cm ×20cm. The wind speeds of 7m / s, 14m / s, and 21m / s respectively blow the generators, and the maximum output voltages generated are 52V, 107V, and 164V, respectively. Under the influence of different wind forces, the deformation and vibration frequency of the flag are different, and the voltage generated by sliding between the friction materials is also different. The magnitude of the wind force has a relatively high linear relationship with the magnitude of the output voltage. Through this characteristic, the technical solution of the present invention is also suitable for monitoring the magnitude of the wind force in the natural environment.

[0048] As an efficient mechanical energy collection device, ...

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Abstract

The invention relates to the field of generators, and discloses a friction nanometer generator based on fiber sliding and a preparation method thereof. The structure of the fabric triboelectric flag includes: a main TENG and a sub-TENG, through the method of charge excitation, the charges generated by the sub-TENG are transferred to the main TENG to obtain high power density. The invention selects small-diameter and light-weight fibers as the textile material of the triboelectric flag, which not only effectively increases the contact area of ​​the friction material, but also maximizes the stretching and friction of the triboelectric flag under the action of wind force. The beneficial effect of the present invention is that the generator can still maintain its inherent performance under the action of various bending, torsion and stretching forces. Improve power generation performance. Under the same area and wind conditions, the maximum voltage and current generated are about 160V and 90μA respectively, and the current and voltage values ​​are relatively stable, which makes it have a wide range of applications.

Description

technical field [0001] The invention belongs to the field of triboelectric nanogenerator (TENG), and in particular relates to a friction nanogenerator based on fiber sliding and a preparation method thereof. Background technique [0002] Fabric friction nanogenerators use fabric as the main friction material and are made into devices by weaving. They have the advantages of low raw material cost, flexibility, breathability, stretchability, and application in wearable electronics. [0003] The triboelectric nanogenerator uses the triboelectric effect to cause friction between two different electrode materials to generate a potential difference. In order to achieve the balance of the potential, the external circuit will transfer the flow of electrons. In terms of structure, friction nanogenerators include sliding friction nanogenerators, contact-separation friction nanogenerators, single-electrode friction nanogenerators, and induction friction nanogenerators. The fabric frict...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N1/04D04C1/02D04C1/06D02G3/44D06M15/643D06M11/83D06M101/40
CPCH02N1/04D04C1/02D04C1/06D02G3/441D06M15/643D06M11/83D10B2101/12D06M2101/40
Inventor 简刚杨宁孟庆臻邵辉
Owner JIANGSU UNIV OF SCI & TECH
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