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High-performance frictional generator and preparation method thereof

A triboelectric generator and high-performance technology, applied in the direction of triboelectric generators, etc., can solve the problems of low energy conversion efficiency, high output voltage, low output current, etc., and achieve the effects of high energy conversion efficiency, high flexibility and strong output capability.

Active Publication Date: 2015-07-15
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the output of existing friction generators has the characteristics of high output voltage and low output current, which makes energy conversion extremely difficult, thus limiting its practical application value
On the other hand, its surface charge density is low, and the electricity transferred by a single action is small, so that its energy conversion efficiency is still relatively low.

Method used

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  • High-performance frictional generator and preparation method thereof
  • High-performance frictional generator and preparation method thereof
  • High-performance frictional generator and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see figure 1 As shown, this embodiment is a high-performance triboelectric generator of the present invention with a contact-separated structure, including sequentially stacked polymer films 1 and conductive electrodes 2, and sequentially stacked polymer insulating layers 3, conductive electrodes 2 and polymer Thin Film 1.

[0029] Preferably, the polymer film 1 and the polymer insulating layer 3 are flexible insulating materials, and the flexible insulating materials include polyethylene (polyethylene, PE), polyvinyl chloride polymer (PVC) polydimethylsiloxane Alkane (polydimethylsiloxane, PDMS), polyimide (polymide, PI), parylene (parylene), polytetrafluoroethylene (polytetrafluoroethylene, PTFE) film, etc.

[0030] Preferably, the conductive electrode 2 is a metal with a resistivity of less than 1000Ω·m such as aluminum, copper, silver, gold or a semiconductor material including indium tin oxide (ITO) and a new type of conductive electrode such as graphene, carbon n...

Embodiment 2

[0034] figure 2 It is a schematic flowchart of a preparation method of a high-performance friction generator in this embodiment.

[0035] refer to figure 2 Shown, the preparation method of a kind of high-performance friction generator of the present invention, concrete processing steps are as follows:

[0036] Step S10: Prepare two substrate materials with electrodes by plating a layer of conductive electrodes on one surface of the polymer film.

[0037] Preferably, in the step S10), the polymer film is a flexible insulating material including polyethylene terephthalate (polyethylene terephthalate, PET), organic glass and the like.

[0038] Preferably, in this step S10), the conductive electrodes are metals with strong electrical conductivity such as aluminum, copper, silver, gold or semiconductor materials including indium tin oxide (ITO) and new conductive electrodes such as graphene and carbon nanotubes. and styrene sulfonic acid (PEDOT-PSS).

[0039] Step S20: using ...

Embodiment 3

[0043] image 3 It is a schematic flowchart of a method for preparing a high-performance friction generator according to Example 3 of the present invention.

[0044] As a preferred version of the above-mentioned embodiment 2, see image 3 As shown, the preparation method of a high-performance friction generator in this embodiment comprises the following steps:

[0045] Step S10: preparing a substrate material with electrodes.

[0046] In this embodiment, PET is used for the polymer film, and ITO is used for the conductive electrode.

[0047] Specifically, the step is: plating a layer of conductive electrode ITO on one surface of the polymer film PET as a substrate material.

[0048] Step S210: spin coating the polymer material.

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Abstract

The invention discloses a high-performance frictional generator and a preparation method thereof. The frictional generator comprises a polymer film I and a conductive electrode I which are stacked sequentially as well as a polymer insulating layer, a conductive electrode II and a polymer film II which are stacked sequentially. According to the preparation method of the frictional generator, a single-step fluorocarbon plasma processing technology is adopted, a micro-nano structure is formed on the surface of polymer, and meanwhile, chemical modification is performed, so that the frictional electrification capability of a processed material is greatly enhanced. The preparation method of the high-performance frictional generator is simple and facilitates large-scale production; the output property of the frictional generator can be greatly improved, and the generator has the capability of supplying power to a wearable device and a microelectronic device.

Description

technical field [0001] The invention relates to the technical field of generators, in particular to a high-performance friction generator and a preparation method thereof. Background technique [0002] Harvesting energy from the living environment is widely regarded as an effective way to achieve green energy and sustainable energy development, and is expected to play an important role in the energy supply of wireless transmission systems, implanted medical devices, and even consumer electronics. Based on the principle of triboelectrification and electrostatic induction, the micro triboelectric generator prepared by simple and low-cost processing can complete the high-efficiency collection of mechanical energy in the surrounding environment, and achieve high output power density and energy conversion efficiency. [0003] However, the output of the existing friction generator has the characteristics of high output voltage and low output current, which makes energy conversion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N1/04
Inventor 张海霞程晓亮孟博韩梦迪陈号天苏宗明
Owner PEKING UNIV
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