Tian Shuo, Lai Lixiang, Xin Jianpeng, Qu Zongtao, Li Bin, Dai Yejing
School of Materials, Shenzhen Campus, Sun Yat-sen University, Shenzhen, 518107, P. R. China.
Small. 2024 May;20(20):e2307282. doi: 10.1002/smll.202307282. Epub 2023 Nov 27.
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 (m rpm) at a 3 m s 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.
风能作为一种清洁、无污染且可再生的能源，是最具潜力替代化石燃料的能源。然而，如何实现稳定高效的风能采集一直是一项重大挑战。在此，提出了一种基于悬臂梁的摩擦电-电磁-压电混合式风能采集器（TEP-WEH）。该TEP-WEH在风速为3米/秒时实现了62.79毫瓦/（米·转每分钟）的功率密度，这得益于合理且优化的结构设计。此外，由于摩擦电纳米发电机（TENG）模块采用了软接触策略，TEP-WEH具备出色的耐用性和驱动性。该采集器被证明能够成功且持续点亮一个额定功率为5瓦的商业照明灯泡，并为自供电传感提供能量供应。这项工作为风能采集和大规模自供电物联网传感提供了一种高效解决方案。
