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A kind of triboelectric nanogenerator and its preparation method and application

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 complex preparation process, limited application, high manufacturing cost, etc., and achieve simple preparation method, wide field Wide range of occasions and low price effects

Active Publication Date: 2019-06-28
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 (Lee S, 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 complex

Method used

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  • A kind of triboelectric nanogenerator and its preparation method and application
  • A kind of triboelectric nanogenerator and its preparation method and application
  • A kind of triboelectric nanogenerator and its preparation method and application

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Experimental program
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Effect test

Embodiment 1

[0060] A preparation method of a friction nanogenerator, the preparation method includes the following contents:

[0061] (1) Preparation of solution:

[0062] Dissolve 5 g of ethyl cellulose in a mixed solution of 30 ml of dichloromethane and 15 ml of absolute ethanol, and stir for 5 hours until the faint cellulose is fully dissolved to obtain the light 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 bubble-free white and transparent Liquid, that is, the polydimethylsiloxane solution;

[0064] (2) Preparation of ethyl cellulose film: spin-coated the ethyl cellulose solution on a polyethylene terephthalate (PET) sheet as a supporting substrate, and place it at room temperature for a time For 5h, a transparent ethyl cellulose film is obtained;

[0065] (3) First etching: etching the ethyl cellulose film with nitrogen and o...

Embodiment 2

[0080] The nano generator and its preparation method of this embodiment are basically the same as those of embodiment 1, except that:

[0081] When preparing the ethyl cellulose solution in step (1), the mass 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 placing time in step (2) is 5h;

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

[0085] In step (4), the drying temperature is 60°C, and the drying time is 15 min;

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

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

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

[0089] The thickness of the friction nanogenerator obtained by the preparation method of this embodiment is 60 μm, an...

Embodiment 3

[0091] The generator and its preparation method of this embodiment are basically the same as those of embodiment 1, except that:

[0092] The thickness of the friction nanogenerator obtained by the preparation method of this embodiment is 78 μm, and the mass per unit area is 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 specifically relates to a friction nano generator and a preparation method and application thereof. Background technique [0002] Friction nanogenerators as a new type of energy device for collecting 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.), receiving more and more attention. It has made tremendous 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.), and the conversion efficiency has reached 85% (Xie Y,Wang S,Niu S,et al.Grating-StructuredFreestanding Triboelectric-Layer Nanogenerator for Harvesting MechanicalEnergy...

Claims

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Application Information

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Patent Type & Authority Patents(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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