Self-powered hybrid flexible nanogenerator and its application in bionic micro aerial vehicles
Self-powered hybrid flexible nanogenerator and its application in bionic micro aerial vehicles
复制标题
自供电混合柔性纳米发电机及其在仿生微型飞行器中的应用
DOI：
10.1016/j.nanoen.2018.09.050
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发表时间：
2018-12
期刊：
影响因子：
17.6
通讯作者：
Guowu Wei
中科院分区：
文献类型：
--
作者：
Guowu Wei
随着压电纳米发电机（PENG）和摩擦电纳米发电机（TENG）的相继出现，环境机械能的获取变得更加高效、低损耗和简单。仿生微型飞行器（BMAV）广泛应用于军事侦察、大气污染监测等领域，将轻量化替代电源引入BMAV是当前的研究热点。然而，目前还没有将这两种纳米发电机（NG）结合起来应用于BMAV以更有效地收集扑翼机械能的设计。在本文中，我们展示了一个混合柔性纳米发电机（HFNG）的基础上结合的摩擦电和压电器件在BMAV。它不仅可以解决电源问题，而且使BMAV智能化，以监测特定环境因素的变化。当扑翼频率为14 Hz时，HFNG的最大开路电压为80 V，短路电流为3.0 μA，瞬时输出功率密度为34.1 mW/m2。HFNG的整流输出已被应用于商业电容器充电，充电电池和驱动发光二极管。HFNG可用于BMAV升力的测试。此外，HFNG的输出性能已被证明是敏感的温度，湿度，酒精浓度和PM2.5的环境。
With the successive advent of piezoelectric nanogenerator (PENG) and triboelectric nanogenerator (TENG), the harvest of ambient mechanical energy has become more high-efficient, low-lost and simpler for self-powered systems. Introducing lightweight alternative power source to bionic micro aerial vehicle (BMAV) which is widely used for military surveillance or monitoring air pollution and so on, is the forefront of the research hotspots. However, there is still no design applying the two kinds of nanogenerator (NG) together in BMAV to collect the flapping mechanical energy more efficiently. In this paper, we demonstrate a hybrid flexible nanogenerator (HFNG) based on the combination of triboelectric and piezoelectric devices in BMAV. It not only can solve the problem of power supply, but also make the BMAV intelligent to monitor the changes of specific environmental factors. The newly designed HFNG can produce a maximum open-circuit voltage of 80 V, short-circuit current of 3.0 μA with the instantaneous output power density of 34.1 mW/m2when the flapping frequency of BMAV (f) is 14 Hz. The rectified output of HFNG has been applied to charge the commercial capacitor, rechargeable battery and drive light-emitting diodes. It was also demonstrated that HFNG can be used for testing the lift force (L) of BMAV. Moreover, the output performances of HFNG have been proved to be sensitive to temperature, humidity, alcohol concentration and PM2.5 in the environment.
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