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A Polymer-based Piezoelectric Vibration Energy Harvester with a 3D Meshed-Core Structure
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Hybrid Triboelectric-Electromagnetic-Piezoelectric Wind Energy Harvester toward Wide-Scale IoT Self-Powered Sensing
Shuo Tian1, Lixiang Lai1, Jianpeng Xin1
1School of Materials, Shenzhen Campus, Sun Yat-sen University, Shenzhen, 518107, P. R. China.
Abstract:
Wind energy is the most promising alternative to fossil fuels as a clean, nonpolluting, and renewable source of energy. However, how to achieve stable and efficient harvesting of wind energy has been a major challenge. Here, a triboelectric-electromagnetic-piezoelectric hybrid wind energy harvester (TEP-WEH) based on the cantilever is proposed. The TEP-WEH achieves a power density of 62.79 mW (m3 rpm)-1 at a 3 m s-1 wind speed, attributable to a rational and optimized structural design. In addition, owing to the soft contact strategy of the TENG module, the TEP-WEH provides excellent durability and drivability. The harvester is demonstrated to successfully and continuously light a commercial lighting bulb rated at 5 W and provide an energy supply for self-powered sensing. This work provides an efficient solution for wind energy harvesting and wide-scale self-powered IoT sensing.
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