Xie Lingjie, Zhai Ningning, Liu Yina, Wen Zhen, Sun Xuhui
Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China.
Department of Applied Mathematics, Xi'an Jiaotong-Liverpool University, Suzhou 215123, China.
Research (Wash D C). 2021 Feb 24;2021:9143762. doi: 10.34133/2021/9143762. eCollection 2021.
Energy collection ways using solar energy, wave, wind, or mechanical energy have attracted widespread attention for small self-powered electronic devices with low power consumption, such as sensors, wearable devices, electronic skin, and implantable devices. Among them, triboelectric nanogenerator (TENG) operated by coupling effect of triboelectrification and electrostatic induction has gradually gained prominence due to its advantages such as low cost, lightweight, high degree of freedom in material selection, large power, and high applicability. The device with a single energy exchange mechanism is limited by its conversion efficiency and work environment and cannot achieve the maximum conversion of energy. Thus, this article reviews the research status of different types of hybrid generators based on TENG in recent years. Hybrid energy generators will improve the output performance though the integration of different energy exchange methods, which have an excellent application prospect. From the perspective of energy complementation, it can be divided into harvesting mechanical energy by various principles, combining with harvesters of other clean energy, and converting mechanical energy or various energy sources into hydrogen energy. For integrating multitype energy harvesters, mechanism of single device and structural design of integrated units for different application scenarios are summarized. The expanding energy harvesting efficiency of the hybrid TENG makes the scheme of self-charging unit to power intelligent mobile electronic feasible and has practical significance for the development of self-powered sensor network.
利用太阳能、波浪能、风能或机械能的能量收集方式，已引起了人们对低功耗小型自供电电子设备的广泛关注，这些设备包括传感器、可穿戴设备、电子皮肤和植入式设备等。其中，基于摩擦起电和静电感应耦合效应工作的摩擦纳米发电机（TENG），因其成本低、重量轻、材料选择自由度高、功率大、适用性强等优点，逐渐受到关注。单一能量转换机制的设备受其转换效率和工作环境的限制，无法实现能量的最大化转换。因此，本文综述了近年来基于TENG的不同类型混合发电机的研究现状。混合能量发电机通过整合不同的能量转换方式来提高输出性能，具有良好的应用前景。从能量互补的角度来看，它可以分为基于各种原理收集机械能、与其他清洁能源收集器相结合，以及将机械能或各种能源转化为氢能。对于集成多种类型的能量收集器，总结了单一设备的工作原理以及针对不同应用场景的集成单元的结构设计。混合TENG不断提高的能量收集效率，使得自充电单元为智能移动电子设备供电的方案变得可行，对自供电传感器网络的发展具有实际意义。
