Piezoelectric film electricity generator and manufacture method thereof

A technology of piezoelectric film and manufacturing method, applied in the manufacture/assembly of piezoelectric/electrostrictive devices, piezoelectric/electrostrictive/magnetostrictive devices, generators/motors, etc. Problems such as difficulty in production, preparation and integration in the chemical industry, to achieve the effect of simplifying the preparation process, improving production efficiency, and achieving large-scale popularization and application

Active Publication Date: 2014-03-26
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of generator based on nanowires or their arrays still has great difficulties in preparation and integration. The bottleneck lies in the processes required for the p

Method used

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  • Piezoelectric film electricity generator and manufacture method thereof
  • Piezoelectric film electricity generator and manufacture method thereof
  • Piezoelectric film electricity generator and manufacture method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example one

[0045] Such as figure 1 In this embodiment, a 1mm thick cotton cloth is selected for the substrate 1; at room temperature, polyvinylidene fluoride (PVDF) piezoelectric polymer nanoparticles with a diameter of 200 nm are added to a 50% by weight containing 0.25wt% gallium oxide In the liquid gallium, a low-melting metal ink with a certain fluidity is made, and then the low-melting metal ink is printed or coated on the surface of the substrate 1 in the form of a line to form a piezoelectric film 2.

[0046] After that, liquid gallium containing 0.25wt% of gallium oxide is printed or coated vertically on the surface of the substrate 1 in the form of lines from the upper and lower ends of the piezoelectric film 2 at room temperature to form the film electrode 3. The film electrodes 3 at both ends of the piezoelectric film 2 are connected by a wire 4 to form a closed loop, and the electrical storage device 5 is connected to the wire 4 of the closed loop to complete ...

Example Embodiment

[0047] Example two

[0048] Such as figure 1 In this embodiment, a 1mm thick cotton cloth is selected for the substrate 1; the liquid gallium containing 0.25wt% gallium oxide and pure zinc are heated and mixed to form a low melting point alloy metal with a weight ratio of 0.2:0.8 to make a low-melting alloy metal with a certain fluidity. Melting point metal ink, then the low melting point metal ink is printed or coated on the surface of the substrate 1 in the form of a line to form an alloy film (because it is an intermediate product, figure 2 (Not marked above); after that, move the alloy film coated with low melting point alloy ink together with the substrate 1 into a well-sealed oxygen cylinder, heat up to 200°C or higher, and keep it for 3 hours or longer. After being oxidized, the zinc oxide in it has a piezoelectric effect, thereby forming a piezoelectric film 2; this oxidation process can also be achieved by heating by microwave, radio frequency, laser, etc.

[0049] Furthe...

Example Embodiment

[0050] Example three

[0051] Such as figure 2 Different from Embodiment 1 and Embodiment 2, the piezoelectric generator of this embodiment is not only composed of one piezoelectric conversion circuit, but is composed of a combination of a plurality of piezoelectric films arranged in a row. In this way, a larger amount of electric energy can be obtained, which is more suitable for actual demand.

[0052] Substrate 1 is made of 1mm thick polyester cloth; at room temperature, polyvinylidene fluoride (PVDF) piezoelectric polymer nanoparticles with a diameter of 200nm are added to liquid gallium containing 0.25wt% gallium oxide at a weight ratio of 50%, A low-melting metal ink with a certain fluidity is made, and then the low-melting metal ink is printed or coated on the surface of the substrate 1 in the form of a line, and then 100 parallel piezoelectric films 2 are repeatedly printed at a certain interval. In this way, an aligned piezoelectric film is formed.

[0053] Then, at room ...

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Abstract

The invention belongs to the technical field of new energy, and particularly relates to a piezoelectric film electricity generator and a manufacture method thereof. The piezoelectric film energy generator comprises substrates, wherein piezoelectric films are arranged on the substrates; film electrodes are perpendicularly arranged at the two ends of the piezoelectric films respectively; the film electrodes at the two ends of the piezoelectric films are connected to form a closed loop circuit through wires; electric power storing equipment is switched in the closed loop circuit; one sides of the substrates are connected with an external power mechanism; the external power mechanism provides mechanical energy for the substrates; the piezoelectric films are produced by being printed or coated with metal ink with low melting point on the substrates. According to the invention, the affiliation character of the metal ink with low melting point and the surfaces of the substrates is utilized, the piezoelectric electricity generator for capturing kinetic energy is produced through a printing or coating manner; the surfaces of the substrates such as clothes, building walls, doors and windows and advertising boards can be directly printed or coated; the production process can be finished under a normal condition, the requirements on the environment are reduced, and large-scale popularization and application of the piezoelectric film electricity generator can be realized.

Description

technical field [0001] The invention relates to the field of new energy technology, in particular to a piezoelectric thin film generator that can be directly printed or coated on the surface of clothing, house walls, doors and windows, billboards and other substrates and a manufacturing method thereof. Background technique [0002] The piezoelectric effect is a phenomenon in which mechanical energy and electrical energy are exchanged in materials. It was first discovered by the Curie brothers in 1880. Piezoelectric materials can generate electric fields due to mechanical deformation, and can also generate mechanical deformation due to the action of electric fields. This inherent electromechanical coupling effect makes piezoelectric materials widely used in engineering. In recent years, due to the importance of energy issues, the research of using piezoelectric effect to capture various mechanical energy has received extensive attention at home and abroad. This type of genera...

Claims

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Application Information

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IPC IPC(8): H02N2/18H01L41/113H01L41/29
Inventor 刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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