Highly Integrated Triboelectric Nanogenerator for Efficiently Harvesting Raindrop Energy,Advanced Materials Technologies

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Highly Integrated Triboelectric Nanogenerator for Efficiently Harvesting Raindrop Energy
Advanced Materials Technologies ( IF 6.4 ) Pub Date : 2019-09-26 , DOI: 10.1002/admt.201900608
Xia Liu ₁ , Aifang Yu _{2,

3,

4} , Aimao Qin ₁ , Junyi Zhai _{2,

3,

4}

Affiliation

The emergence of triboelectric nanogenerators (TENG) has promoted the harvesting of raindrop energy, which mainly includes the kinetic energy and electrostatic energy generated during the fall of raindrops. However, maximizing the use of such energy is quite challenging due to its fragmentary characteristics. A highly integrated TENG is developed that can efficiently collect raindrop energy. It consists of a saccular contact‐separation mode TENG (SCS‐TENG), a freestanding TENG with interdigitated electrodes (I‐TENG), and strip‐shaped I‐TENGs (SI‐TENG). At a water drop rate of 22 mL s⁻¹, it demonstrates a striking increase with short‐circuit current of 95.4 µA and open‐circuit voltage of 42.2 V, whereas the output of single TENGs is only 8.1 µA/5.9 V (SI‐TENG), 75.1 µA/29.3 V (I‐TENG), and 9.1 µA/28.9 V (SCS‐TENG), respectively. Moreover, it can be used in self‐powered devices and as a rain alarm system. It not only provides a promising step toward the efficient collection of raindrop energy but also provides a new perspective for the research and development of self‐powered sensors based on rainfall.

中文翻译：

高度集成的摩擦电纳米发电机，可有效地收集雨滴能量

摩擦电纳米发电机（TENG）的出现促进了雨滴能量的收集，其中主要包括雨滴降落时产生的动能和静电能。然而，由于其零碎的特性，最大限度地利用这种能量是非常具有挑战性的。开发了一种高度集成的TENG，可以有效地收集雨滴能量。它由囊状接触分离模式TENG（SCS-TENG），带有指状电极的独立式TENG（I-TENG）和条形I-TENG（SI-TENG）组成。水滴速率为22 mL s ^-1，表明短路电流为95.4 µA，开路电压为42.2 V时，惊人的增加，而单个TENG的输出仅为8.1 µA / 5.9 V（SI‐TENG），75.1 µA / 29.3 V（I‐ TENG）和9.1 µA / 28.9 V（SCS-TENG）。此外，它可以用于自供电设备和雨水报警系统。它不仅为有效收集雨滴能量提供了可喜的一步，而且为基于降雨的自供电传感器的研究和开发提供了新的视角。

更新日期：2019-09-26

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