Meng Lixia, Yang Yanfei, Liu Shiming, Wang Shuo, Zhang Tao, Guo Xilin
School of Mechanical Engineering, Shenyang Jianzhu University, Shenyang, Liaoning 110168, China.
Inner Mongolia Hohhot Pumped-Storage Power Generation Co., Ltd., Hohhot, Inner Mongolia 010051, China.
ACS Omega. 2022 Dec 27;8(1):1362-1368. doi: 10.1021/acsomega.2c06783. eCollection 2023 Jan 10.
The instability of the ocean waves, such as intermittence, randomness, and irregularity, greatly affects the application of a triboelectric nanogenerator (TENG) in its aspects and leads to the irregularity and uncontrollability of its output performance. Hence, the energy storage TENG (ES-TENG) based on the ratchet mechanism is proposed in this work. The ES-TENG uses the ratchet mechanism to store the wave energy in the clockwork spring and then releases it in a centralized way to convert the wave energy into electric energy. When the ES-TENG adopts this method, the change of external excitation does not affect its output performance. Simultaneously, the shell of the ES-TENG is duck-shaped, which can better adapt to the wave environment. The peak power, open-circuit voltage, and short-circuit current of the ES-TENG are 6.2 mW, 495 V, and 19 μA, respectively. In the simulated wave experiment, the ES-TENG can successfully drive a temperature sensor. In summary, this work shows an economic, environmental friendly TENG that can adapt to the wave motion, and its output performance is not affected by wave instability, which has an important guiding significance for the further development and utilization of TENG in ocean energy.
海浪的不稳定性，如间歇性、随机性和不规则性，极大地影响了摩擦纳米发电机（TENG）在其相关方面的应用，并导致其输出性能的不规则性和不可控性。因此，本文提出了基于棘轮机构的储能摩擦纳米发电机（ES-TENG）。ES-TENG利用棘轮机构将波浪能存储在发条弹簧中，然后集中释放，将波浪能转化为电能。当ES-TENG采用这种方法时，外部激励的变化不会影响其输出性能。同时，ES-TENG的外壳呈鸭形，能更好地适应波浪环境。ES-TENG的峰值功率、开路电压和短路电流分别为6.2 mW、495 V和19 μA。在模拟波浪实验中，ES-TENG能够成功驱动一个温度传感器。综上所述，这项工作展示了一种经济、环保且能适应波浪运动的TENG，其输出性能不受波浪不稳定性的影响，这对TENG在海洋能源中的进一步开发利用具有重要的指导意义。
