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Hierarchical Honeycomb-Structured electret/Triboelectric Nanogenerator for Biomechanical and Morphing Wing Energy Harvesting

引用

Nano-Micro Letters 2021年第8期13卷 136-151页

作者： Kai Tao Zhensheng Chen Haiping Yi Ruirong Zhang Qiang Shen Jin Wu Lihua Tang Kangqi Fan Yongqing Fu Jianmin Miao Weizheng Yuan Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace Northwestern Polytechnical UniversityX’ian 710072People’s Republic of China State Key Laboratory of Optoelectronic Materials and Technologies Key Laboratory of Display Material and TechnologySchool of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510275People’s Republic of China Department of Mechanical Engineering University of Auckland20 Symonds StreetAuckland 1010New Zealand School of Mechano-Electronic Engineering Xidian UniversityX’ian 710071People’s Republic of China Faculty of Engineering and Environment Northumbria UniversityNewcastle upon Tyne NE18STUK School of Electronic Information and Electrical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Flexible,compact,lightweight and sustainable power sources are indispensable for modern wearable and personal electronics and small-unmanned aerial vehicles(UAVs).Hierarchical honeycomb has the unique merits of compact mesostructures,excellent energy absorption properties and considerable weight to strength ***,a honeycomb-inspired triboelectric nanogenerator(h-TENG)is proposed for biomechanical and UAV morphing wing energy harvesting based on contact triboelectrification wavy surface of cellular honeycomb *** wavy surface comprises a multilayered thin film structure(combining polyethylene terephthalate,silver nanowires and fluorinated ethylene propylene)fabricated through high-temperature thermoplastic molding and wafer-level bonding *** superior synchronization of large amounts of energy generation units with honeycomb cells,the manufactured h-TENG prototype produces the maximum instantaneous open-circuit voltage,short-circuit current and output power of 1207 V,68.5μA and 12.4 mW,respectively,corresponding to a remarkable peak power density of 0.275 mW cm^(−3)(or 2.48 mW g^(−1))under hand pressing *** to the excellent elastic property of self-rebounding honeycomb structure,the flexible and transparent h-TENG can be easily pressed,bent and integrated into shoes for real-time insole plantar pressure *** lightweight and compact h-TENG is further installed into a morphing wing of small UAVs for efficiently converting the flapping energy of ailerons into electricity for the first *** research demonstrates this new conceptualizing single h-TENG device’s versatility and viability for broad-range real-world application scenarios.

关键词： Honeycomb-inspired structure Morphing wing energy harvesting electret power generation Triboelectric nanogenerator Self-powered insole pressure mapping

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