基于嵌入式液态金属电极和 FEP 驻极体薄膜的面向可穿戴设备的柔性可拉伸能量收集器。
Wearable Device Oriented Flexible and Stretchable Energy Harvester Based on Embedded Liquid-Metal Electrodes and FEP Electret Film.
机构信息
Key Laboratory of Micro/Nano Systems for Aerospace, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, China.
School of Mechatronic Engineering, Xi'an Technological University, Xi'an 710021, China.
出版信息
Sensors (Basel). 2020 Jan 14;20(2):458. doi: 10.3390/s20020458.
In this paper, a flexible and stretchable energy harvester based on liquid-metal and fluorinated ethylene propylene (FEP) electret films is proposed and implemented for the application of wearable devices. A gallium liquid-metal alloy with a melting point of 25.0 °C is used to form the stretchable electrode; therefore, the inducted energy harvester will have excellent flexibility and stretchability. The solid-state electrode is wrapped in a dragon-skin silicone rubber shell and then bonded with FEP electret film and conductive film to form a flexible and stretchable energy harvester. Then, the open-circuit voltage of the designed energy harvester is tested and analyzed. Finally, the fabricated energy harvester is mounted on the elbow of a human body to harvest the energy produced by the bending of the elbow. The experimental results show that the flexible and stretchable energy harvester can adapt well to elbow bending and convert elbow motion into electric energy to light the LED in a wearable watch.
本文提出并实现了一种基于液态金属和氟化乙烯丙烯（FEP）驻极体薄膜的柔韧可拉伸能量收集器，用于可穿戴设备的应用。使用熔点为 25.0°C 的镓液态金属合金来形成可拉伸电极；因此，感应能量收集器将具有优异的柔韧性和可拉伸性。固态电极被包裹在龙皮硅橡胶外壳中，然后与 FEP 驻极体薄膜和导电薄膜结合，形成一个灵活的可拉伸能量收集器。然后，测试和分析设计的能量收集器的开路电压。最后，将所制造的能量收集器安装在人体肘部上，以收集肘部弯曲产生的能量。实验结果表明，柔性可拉伸能量收集器可以很好地适应肘部弯曲，并将肘部运动转换为电能，为可穿戴手表中的 LED 供电。
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