School of Mechanical Engineering, Chung-ang University, 84, Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea.
Department of Biomedical Engineering, National Taiwan University, Taipei, 10617, Taiwan.
Adv Mater. 2023 Jun;35(24):e2300283. doi: 10.1002/adma.202300283. Epub 2023 Apr 27.
Currently, wind energy harvesting is in the limelight. However, with the existing electromagnetic wind generators, it is difficult to harvest multifariously-wasted breezes. To harvest energy from winds at a wide range of speeds, wind-driven triboelectric nanogenerators (TENGs) are studied. However, a critical limitation of general wind-driven TENGs is that their power output is low. Therefore, an innovative strategy is necessary to generate high output power even from breeze. Herein, an approach to test a charge-polarization-based flutter-driven TENG (CPF-TENG) with ambient air ionizing channel (AAIC) is reported. Owing to AAIC, the device generates peak voltage and current outputs of 2000 V and 4 A, respectively. Moreover, because the proposed CPF-TENG can generate power from breeze, it can be stacked in series to completely harvest wind energy. The stacked CPF-TENG is demonstrated to operate 3000 light-emitting diodes (LEDs) and 12 hygrometers, separately, and produce hydrogen at a rate of 342.3 µL h with the electrolysis cell.
目前，风能的采集正处于风口浪尖。然而，现有的电磁风力发电机很难收集多样化的废弃微风。为了从各种速度的风中采集能量，人们研究了风力驱动的摩擦纳米发电机（TENG）。然而，一般的风力驱动 TENG 的一个关键局限性是其输出功率低。因此，有必要采取一种创新策略，即使是微风也能产生高输出功率。在此，报告了一种基于电荷极化的颤振驱动 TENG（CPF-TENG）与环境空气电离通道（AAIC）的测试方法。由于 AAIC，该设备分别产生 2000V 和 4A 的峰值电压和电流输出。此外，由于所提出的 CPF-TENG 可以从微风中产生功率，因此可以串联堆叠以完全收集风能。堆叠的 CPF-TENG 被证明可以分别为 3000 个发光二极管（LED）和 12 个湿度计供电，并通过电解池以 342.3µL h 的速率产生氢气。
