Nanometer piezoelectric micro-energy system

Abstract

The invention discloses a nanometer piezoelectric micro-energy system. The nanometer piezoelectric micro-energy system comprises an upper substrate, an upper electrode, a dielectric layer, a lower electrode, a piezoelectric nanometer material and a lower substrate in sequence from top to bottom. The upper substrate, the upper electrode, the dielectric layer and the lower electrode form a dielectric capacitor. The piezoelectric nanometer material is located between the lower substrate and the dielectric capacitor. External force (generated from collected dissipated mechanical energy) is transmitted to the piezoelectric nanometer material and makes the material deform, and then electric energy is generated under the direct piezoelectric effect. The nanometer piezoelectric micro-energy system can reduce leak current, improve the efficiency of a nanometer generator and store the electric energy generated by the nanometer generator, and when needed, the electric energy is continuously and stably output outwards to electric appliances or external storage equipment with higher energy density. Through novel structure design, the nanometer piezoelectric micro-energy system integrates efficient power generation, conversion, storage and output.

Description

technical field [0001] The invention belongs to the technical field of nano power generation, energy storage and power supply, and in particular relates to a nano piezoelectric micro energy system. Background technique [0002] With the gradual popularization of portable and wearable devices, the scale and power consumption of electronic products are gradually reduced, which greatly enriches and facilitates people's work and life. However, the energy supply of these devices still uses the traditional chemical battery as the main energy supply device. Although the chemical battery is simple to prepare and easy to use, its energy supply durability is poor, the size is too large, and it pollutes the environment. Therefore, the development of new self-generating energy systems with high power generation efficiency and long service life is the key to solving the energy problems of such electronic devices. [0003] There are documents in the prior art to report the zinc oxide-bas...

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Problems solved by technology

Compared with the previous two reports, this invention has no essential improvement. The electric energy can only be directly output to the outside, the leakage current is huge, the output power is too small, the efficiency is ve...

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