Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF5 Cites 12 Cited by
  • 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 preparation of nanowires, orderly arrangement, assembly, circuit connection, and welding. It is relatively complicated, and it is still difficult for large-scale industrial production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Embodiment 1

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

[0046] Afterwards, liquid gallium containing 0.25wt% gallium oxide is vertically printed or coated 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 a thin film electrode 3 . The film electrodes 3 at both ends of the piezoelectric film 2 are connected by wires 4 to form a closed loop, and the electrical storage device 5 is connected to the closed loop wires ...

Embodiment 2

[0048] Such as figure 1 In this embodiment, the base 1 is made of cotton cloth with a thickness of 1mm; liquid gallium containing 0.25wt% gallium oxide is heated and mixed with pure zinc to form a low melting point alloy metal with a weight ratio of 0.2:0.8, and a low melting point alloy metal with a certain fluidity is made. Melting point metal ink, this low melting point metal ink is printed or coated on the substrate 1 surface in the form of line afterwards, forms alloy thin 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 bottle, raise the temperature to 200°C or higher, and keep it for 3 hours or longer, the alloy film is oxidized, and the zinc oxide in it has a piezoelectric effect, thereby forming a piezoelectric film 2; this oxidation process can also be realized by heating methods such as microwave, radio frequency, a...

Embodiment 3

[0051] Such as figure 2 , different from Embodiment 1 and Embodiment 2, the piezoelectric generator of this embodiment is not only composed of a piezoelectric conversion circuit, but is composed of a plurality of piezoelectric films arranged in a row of conversion circuits, consisting of In this way, a larger amount of electric energy can be obtained, thereby better adapting to actual needs.

[0052] Substrate 1 is made of polyester cloth with a thickness of 1mm; at room temperature, polyvinylidene fluoride (PVDF) piezoelectric polymer nanoparticles with a diameter of 200nm are added to liquid gallium containing 0.25wt% gallium oxide by 50% by weight, A low-melting-point metal ink with a certain fluidity is made, and then the low-melting-point 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, Thus, an aligned piezoelectric film is formed.

[0053] ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02N2/18H01L41/113H01L41/29
Inventor 刘静
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com