Four-Helix Triboelectric Nanogenerator Based on Wave Amplitude Amplifier,Advanced Energy Materials

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Four-Helix Triboelectric Nanogenerator Based on Wave Amplitude Amplifier
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2024-08-29 , DOI: 10.1002/aenm.202402781
Weiyu Zhou ₁ , Liang Tuo ₁ , Wei Tang ₁ , Honggui Wen ₁ , Chunjin Chen ₁ , Heng Ning ₁ , Siyu Long ₁ , Lingyu Wan ₁ , Guanlin Liu ₁ , Zhong Lin Wang ₂

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Deploying triboelectric nanogenerator (TENG) units on and below the water surface has been a conventional method for harvesting wave energy. However, this approach restricts the TENG's amplitude to that of the water waves, limiting the actual offshore output. Here, a new method of placing TENG units above the water surface using a wave amplitude amplifier is reported. This addresses the issue of insufficient amplitude in traditional wave energy TENGs and achieves higher electrical output performance in real offshore conditions. Moreover, the innovative four-helix TENG (FH-TENG), designed with special pattern cutting and bridging techniques, eliminates the need for internal wires, foundational frameworks, and counterweights. Results show that FH-TENG placed on the amplitude amplifier achieves over a 76% increase in amplitude and a 235% enhancement in charge output compared to FH-TENG floating directly on the water surface, and the maximum output voltage, transferred charge and output current reach 246 V, 7.9 µC, and 156.1 µA, respectively. Importantly, when deployed in real marine environments, this system generates more electric energy than in a lab pool under the same peak wave height, providing a reliable power supply solution. This work establishes a precedent for deploying lightweight wave energy TENGs above the water surface.

中文翻译：

基于波幅放大器的四螺旋摩擦纳米发电机

在水面上和水面下部署摩擦纳米发电机（TENG）单元一直是收集波浪能的传统方法。然而，这种方法将TENG的振幅限制为水波的振幅，从而限制了实际的海上输出。在此，报告了一种使用波幅放大器将 TENG 单元放置在水面上方的新方法。这解决了传统波浪能TENG振幅不足的问题，并在实际海上条件下实现了更高的电输出性能。此外，创新的四螺旋 TENG (FH-TENG) 采用特殊的图案切割和桥接技术设计，无需内部电线、基础框架和配重。结果表明，与直接漂浮在水面上的FH-TENG相比，放置在振幅放大器上的FH-TENG振幅增加了76％以上，电荷输出增强了235％，并且最大输出电压、转移电荷和输出电流分别达到 246V、7.9μC 和 156.1μA。重要的是，当部署在真实的海洋环境中时，在相同的峰值波高下，该系统比实验室水池产生更多的电能，提供了可靠的供电解决方案。这项工作开创了在水面上方部署轻型波浪能 TENG 的先例。

更新日期：2024-08-29

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