Abstract
Triboelectric nanogenerator（TENG）is a novel technology that converts mechanical energy into electrical energy and in recent years has shown great potential in promoting green energy. Interestingly, sliding mode operation of the TENG is one of the most effective method for harvesting low-frequency energy. However, the stability of the electrical output of the TENG during operation and long-term mechanical action are critical challenges. Therefore, improving the device life-time of a sliding mode TENG is an important issue that needs to be addressed urgently. In this study, we incorporate a bio-inspired structure based on the evolution of snake scales, where the unique surface structure protects snakes from being harmed from ground friction during movement. We first proposed to examine the structure and composition of the biological scales. As the structure and composition were studied, we verified that it has better charge transfer ability and better wear resistance than general commercial films. Therefore, a wear-resistant energy harvesting device was developed and demonstrated for use in daily life. The incorporation of a bio-inspired design thus has great potential and commercial value in improving life-time of TENG devices.
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