Li Zhongjie, Yang Chao, Zhang Qin, Chen Geng, Xu Jingyuan, Peng Yan, Guo Hengyu
School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200444, P.R. China.
Institute of Artificial Intelligence, Shanghai University, Shanghai 200444, P.R. China.
Research (Wash D C). 2023 Sep 22;6:0237. doi: 10.34133/research.0237. eCollection 2023.
The influence of a mechanical structure's volume increment on the volume power density (VPD) of triboelectric nanogenerators (TENGs) is often neglected when considering surface charge density and surface power density. This paper aims to address this gap by introducing a standardized VPD metric for a more comprehensive evaluation of TENG performance. The study specifically focuses on 2 frequency-up mechanisms, namely, the integration of planetary gears (PG-TENG) and the implementation of a double-cantilever structure (DC-TENG), to investigate their impact on VPD. The study reveals that the PG-TENG achieves the highest volume average power density, measuring at 0.92 W/m. This value surpasses the DC-TENG by 1.26 times and the counterpart TENG by a magnitude of 69.9 times. Additionally, the PG-TENG demonstrates superior average power output. These findings introduce a new approach for enhancing TENGs by incorporating frequency-up mechanisms, and highlight the importance of VPD as a key performance metric for evaluating TENGs.
在考虑表面电荷密度和表面功率密度时，机械结构的体积增量对摩擦纳米发电机（TENG）的体积功率密度（VPD）的影响常常被忽视。本文旨在通过引入标准化的VPD指标来填补这一空白，以便更全面地评估TENG的性能。该研究特别关注两种频率提升机制，即行星齿轮的集成（PG-TENG）和双悬臂结构的应用（DC-TENG），以研究它们对VPD的影响。研究表明，PG-TENG实现了最高的体积平均功率密度，测量值为0.92W/m。该值比DC-TENG高出1.26倍，比同类TENG高出69.9倍。此外，PG-TENG还展示出卓越的平均功率输出。这些发现引入了一种通过纳入频率提升机制来增强TENG的新方法，并突出了VPD作为评估TENG关键性能指标的重要性。
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