Enhancing Output Power of Cylindrical Triboelectric Nanogenerators by Segmentation Design and Multilayer Integration
Enhancing Output Power of Cylindrical Triboelectric Nanogenerators by Segmentation Design and Multilayer Integration
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DOI：
10.1002/adfm.201401936
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发表时间：
2014-11-12
影响因子：
19
通讯作者：
Wang, Zhong Lin
中科院分区：
文献类型：
--
作者：
Tang, Wei;Zhang, Chi;Wang, Zhong Lin
摩擦电纳米发电机（TENG）是一种新发明的技术，可有效地为便携式电子产品、自供电传感器网络等收集环境机械能。在这里，通过将分段和多层集成引入圆柱形TENG，发电机的输出显著增强。采用4层30段结构的TENG，在600 rpm转速下产生的短路电流为86 A（13.5 A·m ~（-2）），功率为4.3 mW（676 mW·m ~（-2）），分别比单层1段结构高70倍和15倍以上。这使得TENG成为传统电子设备的充足电源，如灯泡和温度传感器。此外，它表明，分段设计是一个完美的自我电源管理技术，自动降低TENG的输出电压，并增加其输出电流，而不牺牲输出功率。分形几何是一种有效的方法，以最大限度地提高TENG的接触表面面积，从而输出性能。
The triboelectric nanogenerator (TENG) is a newly invented technology that is effective for harvesting ambient mechanical energy for portable electronics, self-powered sensor networks, etc. Here, by introducing segmentation and multilayer integration into the cylindrical TENG, the generator's output is enhanced significantly. With a four-layer and thirty-segment configuration, the TENG produces a short-circuit current of 86 A (13.5 A m(-2)) and power of 4.3 mW (676 mW m(-2)) at a rotating speed of 600 rpm, which are respectively over 70 and 15 times higher than those of the one-layer and one-segment structure. This makes the TENG a sufficient power supply for conventional electronics, such as light bulbs and temperature sensors. Furthermore, it is demonstrated that the segmentation design is a perfect self-power management technique to automatically lower the TENG's output voltage and increase its output current without scarifying the output power. The fractal geometry is an effective way to maximize the TENG's contact surface area and thereby the output performance.