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Deformable triboelectric nanogenerators and methods for generating electricity, motion sensors, and clothing

A nanogenerator and generator technology, applied in the direction of friction generators, can solve the problems of generator performance stability, easy damage to generators, etc., and achieve the effect of strong shape adaptability and good biocompatibility

Active Publication Date: 2019-04-30
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, no corresponding stretchable triboelectric nanogenerator has been developed. The main limitations include two aspects, one is the stretchability of the material itself, and the other is that the electrodes of the generator are prone to damage during the stretching process. damage, causing the stability of generator performance to be affected during stretching

Method used

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  • Deformable triboelectric nanogenerators and methods for generating electricity, motion sensors, and clothing
  • Deformable triboelectric nanogenerators and methods for generating electricity, motion sensors, and clothing
  • Deformable triboelectric nanogenerators and methods for generating electricity, motion sensors, and clothing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The structural representation of the deformable triboelectric nanogenerator provided by the present invention is as follows: figure 1 shown. The structure of the triboelectric nanogenerator includes an electrode part 10 and a friction part 20, wherein the electrode part 10 is electrically connected to the ground potential, and the friction part 20 is a deformable wave-like structure. Under the action of external force, the shape of the friction member 20 changes, and the contact area with the electrode member 10 changes. After the external force is removed, the friction member 20 returns to its original shape, and a charge flow is formed between the electrode member 10 and the ground potential, forming a dynamic Deformable single-electrode structures of triboelectric nanogenerators.

[0048] In the initial state, the electrode part 10 and the friction part 20 may or may not be in contact with each other. Under the action of an external force, the electrode part 10 and ...

Embodiment 2

[0059] The triboelectric nanogenerator of the present embodiment, such as image 3 As shown, the patterned electrode parts 10 (such as figure 2 As shown), and a deformable friction member 20, the opposite two sides of the friction member 20 are arranged face to face with the electrode member 10, forming a multi-layer structure. The friction member 20 and the electrode member may be arranged in partial contact all the time, or they may be in contact with each other under the action of an external force, and then separate from each other after the external force is removed. The triboelectric nanogenerator with this structure is equivalent to the friction parts shared by the generators in the two first embodiments, and the structures and materials of each part can be the same as those in the first embodiment.

[0060] On the premise that the structure of the electrode part itself has tensile properties, the substrate can also be omitted, and the electrode part of the stretched ...

Embodiment 3

[0072] The present invention also provides a friction power generation method, using the deformable friction nanogenerator of embodiment 1 or embodiment 2, external force (mechanical energy) is applied on the friction nanogenerator, the friction part deforms, and the electrode part rubs, and the external force is removed Afterwards, the friction member returns to its original shape, forming a charge flow between the electrode member and the equipotential. The contact area between the friction member and the electrode member changes when an external force is applied and when the external force is removed.

[0073] When the electrode part is a stretchable structure, when an external force is applied, both the friction part and the electrode part deform, and after the external force is removed, the friction part and the electrode part return to their original shape, forming charge flow between the electrode part and the equipotential.

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Abstract

The invention provides a deformable friction nanometer generator comprising a friction member and an electrode member. Under an action of external force, the shape of the friction member is changed and the friction member generates friction with the electrode member; after the external force is removed, the friction member recovers to an original shape; and a charge flow is formed between the electrode member and an equal potential. Correspondingly, the invention provides a generation method and a motion sensor and clothes which use the friction nanometer generator. The nanometer generator can be used for flexibly collecting mechanical energy with different forms and directions and particularly for collecting human motion kinetic energy.

Description

technical field [0001] The invention relates to the field of mechanical energy power generation, in particular to a deformable frictional nanogenerator based on stretchable materials, a power generation method, and a motion sensor and clothing using the frictional nanogenerator. Background technique [0002] The research and development of nanogenerators, especially triboelectric nanogenerators in recent years, has realized the conversion of tiny mechanical energy, which is ubiquitous in the environment, into electrical energy, providing our society with a new, high-power, low-cost, environmentally friendly secondary energy. So far, the successive invention of multi-mode triboelectric nanogenerators has made this technology applicable to many different motion modes, including contact-separation mode, horizontal sliding mode, single-electrode mode and free mode, etc. [0003] With the rapid development of wearable electronic devices, there are higher requirements for the cor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02N1/04
Inventor 王中林林龙杨伯康
Owner BEIJING INST OF NANOENERGY & NANOSYST