1. High‐Performance and Durable Rotational Triboelectric Nanogenerator Leveraging Soft‐Contact Coplanar Charge Pumping Strategy.
- Author
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Lv, Shaobo, Li, Hongyun, Xie, Yiyuan, Zhang, Binbin, Liu, Bochao, Yang, Jin, Guo, Hengyu, Yang, Zhengbao, and Lin, Zhiming
- Subjects
ON-chip charge pumps ,TRIBOELECTRICITY ,ELECTROSTATIC induction ,ENERGY harvesting ,POWER electronics ,MECHANICAL energy ,CHARGE injection - Abstract
The triboelectric nanogenerator (TENG) represents a burgeoning approach for harvesting ambient mechanical energy. However, practical applications suffer from the issues of insufficient charge density and material abrasion. Here, a rotational TENG that attains exceptional output performance and durability in mechanical energy harvesting and couples an ingenious coplanar charge pump by soft contact with a suspended electrostatic induction mode is presented. Thanks to the continuous and synchronous charge injection from the central charge pumping unit, the charge density can be up to 74.62 µC m−2, resulting in an outstanding peak power density of 20.72 W m−2. Moreover, the utilization of yielding polyester fur in the charge pumping unit as a tribo‐layer for soft contact decreases the material abrasion and then enhances durability and robustness. And the experimental results show that the TENG can maintain 99.2% electrical output after 100 000 operating cycles. With the optimized design, the prototype can continuously drive four commercial lamps rated 12 W in series. Furthermore, a wireless powering system is demonstrated to power the electronics, demonstrating an extensive application of the TENG. Given the compelling characteristics, this work is expected to provide a sound strategy for improving TENGs' output and durability in the field of self‐powered sensor systems. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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