Triboelectric nanometer generator capable of collecting liquid mechanical energy and power generating method thereof

A nanogenerator, a technology of mechanical energy, applied in triboelectric generators, nanotechnology for materials and surface science, nanotechnology, etc. Effect

Active Publication Date: 2015-10-14
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these devices only utilize the energy of water fluctuations that can be in contact with piezoelectric materials, and cannot utilize other energies that may exist in water such as flow, fluctuations, etc.

Method used

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  • Triboelectric nanometer generator capable of collecting liquid mechanical energy and power generating method thereof
  • Triboelectric nanometer generator capable of collecting liquid mechanical energy and power generating method thereof
  • Triboelectric nanometer generator capable of collecting liquid mechanical energy and power generating method thereof

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Experimental program
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Effect test

Embodiment 1

[0051] figure 1 It is a typical structure of the triboelectric nanogenerator of the present invention, including an insulating substrate 10 , power generation components and a friction layer 30 . Wherein, the power generation component is composed of a first electrode layer 21 and a second electrode layer 22, the first electrode layer 21 and the second electrode layer 22 are separately arranged on the substrate 10 and electrically connected to each other; the friction layer 30 covers the power generation The component is used to isolate the first electrode layer 21 and the second electrode layer 22 of the power generation component from the liquid environment in which the generator works. Fluctuation of the liquid rubs against the friction layer 30, causing the surface of the friction layer 30 to be charged; along with the fluctuation of the liquid, the charges on the surface of the friction layer 30 corresponding to the two electrode layers are successively shielded by the io...

Embodiment 2

[0079] In this embodiment, the two electrode layers of the power generation component are patterned electrode layers, Figure 5 As another typical structure of the generator in this embodiment, the first electrode layer 210 and the second electrode layer 220 in the conductive part are both of the slotting structure, and each electrode of the slotting structure is composed of several strip-shaped sub-electrodes parallel to each other. Arranged and connected to each other at one end to form. There is a gap 230 between the two pinion-shaped electrodes in a cross shape, such as Figure 5 As shown in , in the liquid wave direction indicated by the arrow, the strip-shaped sub-electrodes of the two electrodes are arranged alternately. The friction layer covers the power generation component, and isolates the first electrode layer 210 and the second electrode layer 220 of the power generation component from the liquid environment in which the generator works. In the liquid wave dire...

Embodiment 3

[0083] The generators in Embodiments 1 and 2 are suitable for environments such as sea wave fluctuations. When the liquid fluctuates, the change of the contact area with the generator is limited, and the efficiency of absorbing mechanical energy of flowing liquids such as rainwater is limited. In order to be suitable for the liquid environment of flowing water or raindrops, the generator provided in this embodiment includes a plurality of power generation components described in Embodiment 1 and the same number of rectification components, and the electrode layers of multiple power generation components The directions are arranged in parallel, and two adjacent power generation parts share one electrode layer, one power generation part outputs an electric signal and the other is rectified by the rectification part, and the output ends of all the rectification parts are connected in parallel as the output end of the generator. The structure of this embodiment is illustrated by ta...

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Abstract

Provided are a triboelectric nanogenerator harvesting liquid mechanical energy and an electricity generation method. The triboelectric nanogenerator comprises an electricity generation component on an insulation substrate (10) and a friction layer (30) covering the electricity generation component. The electricity generation component is constituted of two electrode layers (21, 22) separately arranged along a liquid fluctuating direction and electrically connected to each other. When the liquid fluctuates or flows, a friction occurs between it and the friction layer, such that the friction layer surface in contact with the liquid carries charges. As the liquid fluctuates or flows, the charges on the friction layer surfaces corresponding to the two electrode layers are successively shielded by ions in the liquid such that an induced charge flow is produced between the two electrode layers. The two electrode layers do not need to move as the liquid fluctuates so as to ensure the service life of the electricity generator. The electricity generator has a light weight, a small volume, a simple structure, and a low manufacturing cost, and is easily produced on a large scale and mounted.

Description

technical field [0001] The invention relates to a triboelectric nanogenerator, in particular to a triboelectric nanogenerator and a power generation method for converting the fluctuation or flow energy of liquid into electrical energy. Background technique [0002] Liquid fluctuations or flow energy in the environment are ubiquitous. At present, the main way to use liquid fluctuations or flow energy to generate electricity is to set flexible piezoelectric materials in the liquid, especially low-dimensional carbon nanostructures such as carbon nanotubes and multilayer graphene. The shape of the piezoelectric material fluctuates under the action of the flow of a polar liquid to generate an electric potential. In the existing design, this eel-like reciprocating motion brings difficulties for the device to work for a long time due to mechanical fatigue, especially the life of the electrode, which can be improved by limiting the properties of the material and the ion concentratio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N1/04
CPCH02N1/04B82Y30/00
Inventor 王中林朱光苏元捷
Owner BEIJING INST OF NANOENERGY & NANOSYST
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