Friction nanometer generator, preparation method thereof and application thereof

A technology of nano generators and generators, applied in the direction of friction generators, manufacturing electric generators, chemical instruments and methods, etc., can solve the problems of high manufacturing costs, limited applications, complicated preparation processes, etc., and achieve low price, wide field The effect of a wide range of occasions and simple preparation methods

Active Publication Date: 2018-01-19
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this sensor is very sensitive to mechanical deformation, which limits its application on objects with small curvature radii.
Although there are currently technologies that overcome pressure sensors that are sensitive to mechanical deformation (LeeS, Reuveny A, Reeder J, et al. A transparent bending-insensitive pressure sensor [J]. Nature nanotechnology, 2016.), the manufacturing cost is high and the preparation process is complicated

Method used

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  • Friction nanometer generator, preparation method thereof and application thereof
  • Friction nanometer generator, preparation method thereof and application thereof
  • Friction nanometer generator, preparation method thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] A preparation method of a triboelectric nanogenerator, said preparation method comprising the following contents:

[0061] (1) Preparation of solution:

[0062] 5 g of ethyl cellulose was dissolved in a mixed solution of 30 ml of dichloromethane and 15 ml of absolute ethanol, and stirred for 5 h until the vaguely dissolved cellulose was fully dissolved to obtain a pale yellow ethyl cellulose solution;

[0063] Mix polydimethylsiloxane (PDMS) and curing agent (prepolymer with vinyl side chains) at a mass ratio of 3:1, and stir for 5 minutes until the two are fully mixed to obtain a white and transparent product without bubbles. Liquid, that is, the polydimethylsiloxane solution;

[0064] (2) Preparation of polyethylene terephthalate / ethyl cellulose film: the ethyl cellulose solution is spin-coated on a polyethylene terephthalate (PET) sheet as a supporting substrate , placed at room temperature for 5 hours to obtain a transparent polyethylene terephthalate / ethyl cellul...

Embodiment 2

[0080] The nanogenerator of the present embodiment and the preparation method thereof are basically the same as in Example 1, except that:

[0081] During the preparation of ethyl cellulose solution in step (1), the quality of ethyl cellulose is 9g; the volume of dichloromethane is 50ml; the volume of absolute ethanol is 25ml; the stirring time is 6h;

[0082] When preparing polydimethylsiloxane solution, the mass ratio of polydimethylsiloxane (PDMS) and curing agent (prepolymer with vinyl side chain) is 1:1;

[0083] The standing time described in step (2) is 5h;

[0084] The etching time described in step (3) is 60s;

[0085] The drying temperature described in step (4) is 60° C., and the drying time is 15 minutes;

[0086] The drying temperature in step (5) is 120°C; the drying time is 3h;

[0087] The etching time described in step (6) is 300s;

[0088] The drying temperature in step (7) is 60° C.; the drying time is 15 minutes.

[0089] The friction nanogenerator obt...

Embodiment 3

[0091] The generator of the present embodiment and the preparation method thereof are basically the same as in Embodiment 1, except that:

[0092] The friction nanogenerator obtained by the preparation method of this example has a thickness of 78 μm and a mass per unit area of ​​5 mg.cm -2 .

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Abstract

The invention relates to a friction nanometer generator, a preparation method thereof and an application thereof. The upper electrode and the lower electrode of the friction nanometer generator are made of conductive flexible materials, and a first insulating polymer, a first flexible material and a second insulating polymer, a second flexible material and a third insulating polymer are sequentially stacked up to form a film. According to the invention, the friction nanometer generator disclosed by the invention can be attached to an object with a small curvature radius and can reduce the requirements in the longitudinal space or in the transverse space. The limitation of a "heavy" substrate of the generator is avoided. The vertical and independent friction nanometer generator of the invention is ultra-thin in structure and light in weight. In addition, the friction nanometer generator can be attached to objects with complex shapes. Meanwhile, the energy collecting function and the sensing function are achieved. The damage of equipment is avoided. The generator is simple in structure, low in manufacturing cost and capable of being massively produced. The requirements of the currentmarket are met. The invention belongs to the technical field of micro-nano energy power generation.

Description

technical field [0001] The invention belongs to the technical field of micro-nano energy power generation, and in particular relates to a friction nanometer generator and its preparation method and application. Background technique [0002] Triboelectric nanogenerators as a new energy device for harvesting mechanical energy (Zhang L, Zhang B, ChenJ, et al.Lawn structured triboelectric nanogenerators for scavenging sweepingwind energy on rooftops[J].Advanced Materials,2016,28(8):1650 -1656.), has received increasing attention. It has made great progress in output, conversion efficiency, application and structure. Its output can satisfy mobile phone charging (Zhu G, Chen J, Zhang T, et al. Radial-arrayed rotary electrification for high performance triboelectric generator [J]. Nature communications, 2014, 5.), the conversion efficiency has reached 85% (Xie Y, Wang S, Niu S, et al.Grating‐Structured Freestanding Triboelectric‐Layer Nanogenerator for Harvesting Mechanical Energ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N1/04H02K15/00B32B15/04B32B15/08B32B15/095B32B23/04B32B27/28B32B27/40
Inventor 张跃高放放廖庆亮张光杰丁一马明园韩林宏
Owner UNIV OF SCI & TECH BEIJING
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