Tan Dujuan, Zeng Qixuan, Wang Xue, Yuan Songlei, Luo Yanlin, Zhang Xiaofang, Tan Liming, Hu Chenguo, Liu Guanlin
Department of Applied Physics, State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing, 400044, People's Republic of China.
Center On Nanoenergy Research, School of Physical Science and Technology, Guangxi University, Nanning, Guangxi, 530004, People's Republic of China.
Nanomicro Lett. 2022 May 11;14(1):124. doi: 10.1007/s40820-022-00866-w.
Triboelectric nanogenerators (TENGs) have shown promising potential for large-scale blue energy harvesting. However, the lack of reasonable designs has largely hindered TENG from harvesting energy from both rough and tranquil seas. Herein, a fully symmetrical triboelectric nanogenerator based on an elliptical cylindrical structure (EC-TENG) is proposed for all-weather blue energy harvesting. The novel elliptical cylindrical shell provides a unique self-stability, high sensitivity to wave triggering, and most importantly, an anti-overturning capability for the EC-TENG. Moreover, benefiting from its internal symmetrical design, the EC-TENG can produce energy normally, even if it was overturned under a rude oscillation in the rough seas, which distinguishes this work from previous reported TENGs. The working mechanism and output performance are systematically studied. The as-fabricated EC-TENG is capable of lighting 400 light-emitting diodes and driving small electronics. More than that, an automatic monitoring system powered by the EC-TENG can also monitor the water level in real-time and provide an alarm if necessary. This work presents an innovative and reliable approach toward all-weather wave energy harvesting in actual marine environments.
摩擦纳米发电机（TENGs）在大规模蓝色能源收集方面展现出了巨大潜力。然而，缺乏合理的设计在很大程度上阻碍了TENG从波涛汹涌和波澜不惊的海洋中收集能量。在此，提出了一种基于椭圆圆柱结构的全对称摩擦纳米发电机（EC-TENG），用于全天候蓝色能源收集。这种新颖的椭圆圆柱壳为EC-TENG提供了独特的自稳定性、对波浪触发的高灵敏度，以及最重要的抗倾覆能力。此外，得益于其内部对称设计，即使在波涛汹涌的大海中受到剧烈振荡而翻转，EC-TENG仍能正常产生能量，这使这项工作有别于先前报道的TENG。对其工作机制和输出性能进行了系统研究。所制备的EC-TENG能够点亮400个发光二极管并驱动小型电子设备。不仅如此，由EC-TENG供电的自动监测系统还能实时监测水位，并在必要时发出警报。这项工作为实际海洋环境中的全天候波浪能量收集提供了一种创新且可靠的方法。
