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Moisture power generation method and device

A power generation device and moisture technology, which is applied in the direction of generators/motors, generators that convert kinetic energy into electric energy, electrical components, etc., can solve the problems of cumbersome manufacturing process and high price, and achieve good device performance recovery, good humidity Effect of moisture control, good moisture self-healing properties

Active Publication Date: 2019-03-29
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In related technologies, this power generation method mainly relies on graphene-based materials with high prices, cumbersome manufacturing processes and serious pollution, and related research based on polymer materials has not yet been reported.

Method used

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  • Moisture power generation method and device
  • Moisture power generation method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (a) if image 3 As shown, the 1788 type polyvinyl alcohol (PVA) is made into an aqueous solution of 10% solid content, and the poly(4-styrenesulfonic acid) (PSSA) with a molecular weight of 75000 is 30% with a solid content according to a volume ratio of 1: 1 was mixed to obtain a solution with a total volume of 5 mL. Pour it into a plastic petri dish with a diameter of 6 mm, then put it in an oven, set the temperature of the oven at 45°C, and dry it with air for 3 hours to obtain a polymer power generation film, which shows good flexibility and the obtained power generation film membrane.

[0060] (b) if Figure 4 As shown, the polymer power generation membrane obtained above has a smooth surface and a compact internal structure.

[0061] (c) Prepare the top electrode of the moisture power generation device: take a metal silver electrode sheet with a thickness of 0.2 mm and a size of 1 × 1 cm, and then use a laser to drill holes with a diameter of 20 × 20 microns, a...

Embodiment 2

[0067] In the embodiment of the present invention, the polymer power generation membrane and the moisture power generation device were prepared according to the same method as in the embodiment 1. The difference is: (a) the poly(4-styrenesulfonic acid) (PSSA) solution with a solid content of 30% and a molecular weight of 75,000 was taken, and the film was prepared by subsequent drying; (c) the top electrode was a porous gold electrode, the size of 2 x 2 cm;

[0068] In this embodiment of the present invention, when the relative humidity changes by 90%, the polymer power generation film can generate a voltage up to 0.8V and a current of 200μA.

Embodiment 3

[0070] In this embodiment of the present invention, the polymer power generation membrane and the moisture power generation device were prepared by basically the same method as in embodiment 1. The difference is: (a) take 5mL of 10% solid content and dry 1788 type polyvinyl alcohol (PVA) to obtain a film;

[0071] In this embodiment of the present invention, when the relative humidity changes by 30%, the polymer power generation film can generate a voltage as high as 0.3V and a current as high as 0.2μA.

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Abstract

The invention discloses a moisture power generation method and device. The method includes the following steps: pouring a polymer solution into a culture dish and then placing the culture dish in a drying oven to prepare a polymer power generation film; placing the polymer power generation film on a moisture-insulated metal electrode, and disposing a porous top electrode above the polymer power generation film to protect a film form of the polymer power generation film and to transmit moisture; applying moisture stimulation to an external single direction of the metal electrode to induce separation of positive and negative ion pairs in the polymer power generation film and to release freely moving current carriers; and diffusing from a high concentration area to a low concentration area bythe current carriers to generate a potential difference and an electric current, thereby outputting electric energy to the outside. The method adopts a polymer material which is simple and easy to obtain and can be bent, stretched or even self-repaired, can achieve moisture control by simultaneously using orientation moisture stimulation, does not require usage of high-cost lasers, is simple in test method, does not require usage of other expensive external equipment for a test process, and has the advantage of large-scale integration.

Description

technical field [0001] The invention relates to the technical field of functional materials, in particular to a moisture power generation method and device. Background technique [0002] Polymer materials generally have large molecular weight, low density, high mechanical properties, good wear resistance, corrosion resistance, etc., and can be assembled to form flexible, stretchable, and optically transparent films. A functional material widely used in industrial production and daily life. [0003] Studies have shown that by stimulating a specific material with unidirectional moisture, the separation of positive and negative ion pairs inside the material can be induced, thereby generating electrical energy in the external circuit. This power generation method is green, environmentally friendly, stable and sustainable, and is expected to become the next generation of green energy collection technology. In related technologies, this power generation method mainly relies on g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02N3/00
CPCH02N3/00
Inventor 曲良体黄亚鑫程虎虎王海燕
Owner TSINGHUA UNIV
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