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Viscous friction nano-generator

A nano-generator, viscous technology, applied in triboelectric generators, ocean energy power generation, synthetic resin layered products, etc., can solve the problem of increasing effective friction area, friction nano-generator does not consider the contact area of ​​viscous surface friction pairs, etc. question

Active Publication Date: 2021-07-06
OCEAN UNIV OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Theoretically speaking, the micro-nano structure on the surface of the material has the ability to enhance the output of frictional nano-power generation, but whether the effective friction area increases due to the existence of the micro-nano structure when the friction pair rubs against each other is still under further research.
The current research on triboelectric nanogenerators has not considered the use of viscous surfaces to increase the contact area between friction pairs.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

experiment example 1

[0034] Polymethyl methacrylate (PMMA) is used as the viscous layer and the friction layer matrix, the viscous material is made of polyurethane adhesive, the friction layer is made of polytetrafluoroethylene, the conductive element is made of two sections of copper tape, and the two sections of copper tape are used Connected with copper wire. figure 2 Shown is the current data diagram of this experiment, and the alternating current output generated when the mechanical motion is 1Hz, 2Hz, and 3Hz is tested through the experiment. The data in the figure shows that by setting the viscous layer, the nanogenerator has good electrical output performance, and the faster the movement frequency, the greater the triboelectric output current generated.

experiment example 2

[0036] The experimental group used PMMA as the viscous layer and the friction layer matrix, the viscous material was made of polyurethane adhesive, the friction layer was made of polytetrafluoroethylene (PTFE), the conductive layer was made of copper tape, and copper wires were connected on the two conductive layers; The group removes the sticky layer made of sticky substances according to the settings of the experimental group.

experiment example 3

[0038] The experimental group used PMMA as the viscous layer and the friction layer matrix, the viscous material was polyurethane adhesive, the friction layer was polyimide (PI), the conductive layer was copper tape, and copper wires were connected on the two conductive layers; The group removes the sticky layer made of sticky substances according to the settings of the experimental group.

[0039] It can be seen from Experimental Examples 2 and 3 that by adding viscous substances on the surface of the friction pair, the effective friction area and friction force of the friction pair can be increased, thereby improving the triboelectric output of the triboelectric nanogenerator.

[0040] Working principle of the present invention: as figure 1 As shown, the viscous layer and the friction layer are initially separated. When the viscous layer is pressed against the friction layer, the viscous layer and the friction layer are closely attached due to the specific viscosity of the s...

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Abstract

The invention provides a viscous friction nano-generator, and relates to the technical field of nano-generators. The nano-generator comprises a friction pair provided with at least one viscous layer, and a conductive element arranged between the friction pair and used for leading out electric energy. According to the viscous friction nano-generator provided by the invention, the contact area between friction pairs is increased by increasing the surface viscosity of the friction pairs, so that friction is more sufficient, and larger frictional electricity output is obtained.

Description

technical field [0001] The invention relates to the technical field of nano generators, in particular to a viscous friction nano generator. Background technique [0002] In 2012, the team of Professor Wang Zhonglin from the Georgia Institute of Technology used the coupling effect of triboelectricity and electrostatic induction to invent a triboelectric nanogenerator (TENG) that can convert mechanical energy into electrical energy. During the energy harvesting process of the generator, two materials with different triboelectric polarities contact to generate triboelectric charge on the surface, and when separated, a potential difference will be generated to form a current output on the external circuit. This new generator can be used to collect various forms of mechanical energy, such as human body motion energy, mechanical vibration energy, rotational energy, wind energy, sound wave energy, raindrop energy and ocean wave energy. In 2013, Chen et al. fabricated a triboelectr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N1/04B32B27/30B32B7/12B32B27/08B32B27/32B32B3/08B32B27/28
CPCH02N1/04B32B27/308B32B7/12B32B27/08B32B27/322B32B3/085B32B27/281Y02E10/30
Inventor 刘盈孙国蕴刘玉鹏王道爱
Owner OCEAN UNIV OF CHINA
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