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

作　　者：Kai Tao Zhensheng Chen Haiping Yi Ruirong Zhang Qiang Shen Jin Wu Lihua Tang Kangqi Fan Yongqing Fu Jianmin Miao Weizheng Yuan 

机构地区：[1]Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace,Northwestern Polytechnical University,X’ian 710072,People’s Republic of China [2]State Key Laboratory of Optoelectronic Materials and Technologies,Key Laboratory of Display Material and Technology,School of Electronics and Information Technology,Sun Yat-Sen University,Guangzhou 510275,People’s Republic of China [3]Department of Mechanical Engineering,University of Auckland,20 Symonds Street,Auckland 1010,New Zealand [4]School of Mechano-Electronic Engineering,Xidian University,X’ian 710071,People’s Republic of China [5]Faculty of Engineering and Environment,Northumbria University,Newcastle upon Tyne NE18ST,UK [6]School of Electronic Information and Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,People’s Republic of China

出　　处：《Nano-Micro Letters》2021年第8期136-151,共16页纳微快报（英文版）

基　　金：This research is supported by the National Natural Science Foundation of China Grant(Nos.51705429&61801525);the Fundamental Research Funds for the Central Universities,Guangdong Natural Science Funds Grant(2018A030313400);Space Science and Technology Foundation,111 Project No.B13044;UK Engineering and Physical Sciences Research Council(EPSRC)for support under grant EP/P018998/1,Newton Mobility Grant(IE161019)through Royal Society.

摘　　要：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 ratios.Herein,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 structure.The 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 process.With 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 excitations.Attributed 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 mapping.The 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 time.This 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 

分 类 号：TM31[电气工程—电机]