Friction generator based on folded conductive film, preparation method thereof, and integrated structure

Abstract

The present invention provides a friction generator based on a folded conductive film. The friction generator comprises an upper friction layer which comprises an upper insulating layer (200) made of a flexible material and an upper electrode (100) on the upper insulating layer, a lower friction layer which comprises a substrate (400) made of a flexible material and a lower electrode (300) which is on the substrate and is made of a folded conductive film material. According to the folded design, a friction area and a friction effect are improved, thus a device with a same area has larger output voltage, in a same space structure, the output voltage and output power of the friction generator are effectively improved, the integration and promotion of multiple friction generators are facilitated, the scalability of a device is also improved through folded electrodes in upper and lower positions, thus a power generation mode is broadened, power can be generated through pressure, power can be generated through drawing and bending, the versatility of the device is enhanced, and the application of the friction generator in the aspects of complex environment and the man-machine interface is facilitated.

Description

technical field [0001] The invention belongs to the technical field of new energy, and relates to a friction generator based on a wrinkled conductive film, a preparation method and an integrated structure. Background technique [0002] Energy is an integral part of electronic devices. In the process of the development of electronic devices towards mobile, portable and wearable, traditional energy technologies such as lithium batteries can no longer meet the demand. The use of trillions of batteries distributed around the world With a limited lifetime, managing, replacing, recycling and reusing batteries can be a daunting task. As the heart of the next generation of flexible electronic devices, it needs to be portable and sustainable, and the emergence of the triboelectric nanogenerator makes it possible. The friction generator is a new energy harvesting method, and it is also a new power generation terminal. It is a potential stock to solve the global energy shortage and pr...

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Problems solved by technology

[0003] There are two main disadvantages in the existing friction generators: on the one hand, two kinds of friction materials in a planar shape rub against each other, the friction area is relatively small, the friction effect is relatively weak, and the output performance of the device includes low output voltage and output power. It is

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