A double-sided wearable triboelectric nanogenerator and its preparation method

Abstract

The invention provides a double-sided wearable friction nanogenerator and a preparation method thereof. The friction nanogenerator comprises a first high-molecular polymer film layer, a friction electrode layer and a second high-molecular polymer friction film layer which are sequentially distributed in a stacked manner; a human body is taken as a second electrode and connected with the ground; the two layers of friction films are formed by flexible high-molecular polymers; nanostructures are modified on the outer surfaces; the flexible high-molecular polymer film layers can be worn on the human body and rub against the skin of the human body; and the friction electrode layer is a voltage and current output electrode of the friction nanogenerator. The flexible materials of which the surfaces are modified with the concave-convex nanostructures are utilized as two high-molecular polymer film layers, so that the roughness and the contact area of the friction surface are improved and more inductive charges are generated. According to the friction nanogenerator provided by the invention, by unique double-sided friction layer and flexible materials, energy in different directions can be collected and output of higher energy is achieved.

Description

technical field [0001] The invention belongs to the fields of new energy development and micro-nano structure processing, and in particular relates to a double-sided wearable friction nanometer generator and a preparation method thereof. Background technique [0002] With the rapid development of modern technology, electronic equipment and systems are constantly evolving towards miniaturization, portability, and multi-function. Portable electronic products are becoming more and more closely related to our lives. At present, the use of wearable devices has become a new trend of mass consumption and New Fashion. How to supply power to these huge miniature portable electronic devices in real time has become an urgent problem to be solved in the development of industry and information technology. [0003] Triboelectrification is a very common phenomenon in daily life. Depending on the difference in the triboelectric polarity of the contact material, triboelectric charge is form...

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: aiming at the defects of low efficiency and single processing method of the wearable frictional nanogenerator, the present invention provides a double-sided wearable frictional nanogenerator and its preparation method, the friction layer is changed from the current One side is upgraded to double side, energy is collected in more directions, and nanostructures are modified on the friction surface to increase the roughness and contact area of ​​the friction surface, output higher voltage and current, and realize the wearable triboelectric nanogenerator. high energy output

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