Pu Xiong, Wang Zhong Lin
CAS Center for Excellence in Nanoscience, Beijing Key Laboratory of Micro-Nano Energy and Sensor, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences Beijing 100083 China
School of Nanoscience and Technology, University of Chinese Academy of Sciences Beijing 100049 China.
Chem Sci. 2020 Nov 3;12(1):34-49. doi: 10.1039/d0sc05145d.
Power devices for the smart sensor networks of Internet of things (IoT) are required with minimum or even no maintenance due to their enormous quantities and widespread distribution. Self-charging power systems (SCPSs) refer to integrated energy devices with simultaneous energy harvesting, power management and effective energy storage capabilities, which may need no extra battery recharging and can sustainably drive sensors. Herein, we focus on the progress made in the field of nanogenerator-based SCPSs, which harvest mechanical energy using the Maxwell displacement current arising from the variation in the surface-polarized-charge-induced electrical field. Prototypes of different nanogenerator-based SCPSs will be overviewed. Finally, challenges and prospects in this field will be discussed.
由于物联网(IoT)智能传感器网络中的功率设备数量庞大且分布广泛,因此需要最少甚至无需维护。自充电电源系统(SCPS)是指具有同时进行能量收集、功率管理和有效能量存储能力的集成能源设备,其可能无需额外充电电池,并且能够可持续地驱动传感器。在此,我们重点关注基于纳米发电机的自充电电源系统领域所取得的进展,该系统利用表面极化电荷感应电场变化产生的麦克斯韦位移电流来收集机械能。将概述不同基于纳米发电机的自充电电源系统的原型。最后,将讨论该领域的挑战和前景。