Ultrahigh Power Output from Triboelectric Nanogenerator Based on Serrated Electrode via Spark Discharge,Advanced Energy Materials

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Ultrahigh Power Output from Triboelectric Nanogenerator Based on Serrated Electrode via Spark Discharge
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2020-10-07 , DOI: 10.1002/aenm.202002312
Jihye Kim ₁ , Hanchul Cho ₂ , Maeum Han ₃ , Young Jung _{2,

4} , Sung Soo Kwak ₁ , Hong‐Joon Yoon ₁ , Byunggeon Park _{2,

4} , Hyeok Kim ₂ , Hyoungjae Kim ₅ , Jinhyoung Park ₆ , Sang‐Woo Kim _{1,

7}

Affiliation

An ultrahigh power output from a triboelectric nanogenerator (TENG) with a serrated electrode in a low‐frequency contact‐separation mode which is able to directly drive high voltage‐operating devices without the need for an external power supply is demonstrated. When a serrated electrode‐based TENG (SE‐TENG) is driven, the microstructurally serrated electrode creates a spark discharge in the gap between the serrated electrode and a wire, resulting in tremendously boosted triboelectric power output. Based on the spark discharge phenomenon, a boost adaptor is designed to secondarily boost the triboelectric power output performance, and consequently an ultrahigh triboelectric output voltage of 5 kV and current density of 2 A m⁻² are achieved. The boost adaptor concept can be applied to any typical TENG for achieving higher power‐generating performance. Finally, two high voltage applications, a Crookes tube and plasma generation, are demonstrated using the SE‐TENG and boost adaptor without any external power supply equipment. The ultrahigh power‐generating SE‐TENG based on the spark discharge phenomenon occurring in the unique electrode structure has considerable potential to operate high voltage applications directly in harsh environments where electricity cannot be supplied.

中文翻译：

摩擦电纳米发电机基于锯齿状电极通过火花放电产生超高功率

展示了摩擦式纳米发电机（TENG）的超高功率输出，它带有锯齿状电极，处于低频接触分离模式，可直接驱动高压操作设备，而无需外部电源。当驱动基于锯齿状电极的TENG（SE-TENG）时，微观结构的锯齿状电极会在锯齿状电极和导线之间的间隙中产生火花放电，从而大大提高了摩擦电功率输出。基于火花放电现象，设计了升压适配器，以进一步提高摩擦电功率输出性能，从而提高了5 kV的超高摩擦电输出电压和2 A m ^-2的电流密度实现。升压适配器的概念可以应用于任何典型的TENG，以实现更高的发电性能。最后，在没有任何外部电源设备的情况下，使用SE-TENG和升压适配器演示了两种高电压应用，即Crookes管和等离子体生成。基于独特电极结构中发生的火花放电现象的超高功率SE-TENG具有巨大的潜力，可以在无法供电的恶劣环境中直接操作高压应用。

更新日期：2020-11-25

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