The triboelectric nanogenerator (TENG) is an innovative technology that converts ambient mechanical energy into electricity based on electrostatic induction and triboelectrification. However, the TENG has an inherent critical problem of low peak and root mean square (RMS) output current due to its high internal impedance. Herein, we propose a unidirectional charge-supplying flutter TENG (UCSF-TENG), which exhibits highly enhanced peak/RMS current output performance. By leveraging just one rectifier diode and distinctive fluttering device design, the UCSF-TENG achieved a peak current of 5.9 A and an RMS current of 20 mA. The electrical output generation mechanism of the UCSF-TENG was systemically analyzed based on the mechanical fluttering motion analysis using a high-speed camera. In addition, the UCSF-TENG was structurally optimized via mechanical and electrical analyses for various design factors, through which it achieved an average power of 109 mW. Benefiting from such high output performance, the UCSF-TENG can successfully charge a supercapacitor of 0.22 F, power 108-W commercial lamps, and operate 12 commercial sensor arrays continuously. This work provides a promising strategy for boosting the output current performance of the TENG while maintaining integrability and portability.

摩擦纳米发电机 (TENG) 是一项基于静电感应和摩擦起电将环境机械能转化为电能的创新技术。然而，由于内部阻抗较高，TENG 存在固有的关键问题，即低峰值和均方根 (RMS) 输出电流。在此，我们提出了一种单向电荷供应颤振 TENG (UCSF-TENG)，它具有高度增强的峰值/RMS 电流输出性能。通过仅利用一个整流二极管和独特的颤动器件设计，UCSF-TENG 实现了 5.9 A 的峰值电流和 20 mA 的 RMS 电流。基于使用高速相机的机械颤振运动分析，系统地分析了 UCSF-TENG 的电输出生成机制。此外，UCSF-TENG 通过针对各种设计因素的机械和电气分析进行了结构优化，从而实现了 109 mW 的平均功率。得益于如此高的输出性能，UCSF-TENG 可以成功地为 0.22 F 的超级电容器充电，为 108 W 的商用灯供电，并连续运行 12 个商用传感器阵列。这项工作为提高 TENG 的输出电流性能同时保持可集成性和便携性提供了一种有前途的策略。