Solid–Liquid Elastic Pendulum Triboelectric Nanogenerator Design for Application to Omnidirectional Blue Energy Harvesting

Xinyao Zhang, Yuxiang Su, Xin Dong, Jinlin Wu, Xiaonan Su, Guanyu Dai, Anguo Liu, Wuwei Feng, Keyang Zhao, Bangjun Lei, Zhenhua Li
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Abstract

The ocean is regarded as a significant resource for renewable energy development. The use of triboelectric nanogenerators (TENGs) provides an effective approach to capturing energy from low‐frequency, random, and disorganized water waves. In this paper, the solid–liquid elastic pendulum (SLEP)‐TENG is designed for omnidirectional blue energy harvesting applications. Differentiating from traditional designs, the proposed TENG has a simple, reliable, and durable flexible pendulum structure with a spherical shell and a solid counterweight at the bottom that can absorb the impact of ocean waves efficiently. The structure also has a hollow hexagonal space that allows it to generate a larger contact area when it is subjected to wave impacts from different directions. Under low‐speed lateral motion conditions (at frequencies below 0.83 Hz), its open‐circuit voltage VOC, short circuit current ISC, and power density Pm can reach up to 486.8 V, 16.9 µA, and 10.26 W m−3, respectively, which is sufficient to power more than 450 commercial light‐emitting diodes. By storing electrical power in small capacitors, the TENG can support small power‐consuming devices, e.g., thermometers and calculators. Therefore, the SLEP‐TENG has great potential for use in combination with Internet of Things devices to enable self‐powered sensing system construction in complex ocean areas.

Abstract Image

应用于全向蓝光能量收集的固液弹性摆三电纳米发电机设计
海洋被视为可再生能源开发的重要资源。三电纳米发电机(TENGs)的使用为从低频、随机和无序的水波中获取能量提供了一种有效的方法。本文设计的固液弹性摆(SLEP)-TENG 可用于全向蓝色能量收集应用。与传统设计不同的是,所提出的 TENG 具有简单、可靠和耐用的弹性摆结构,其球形外壳和底部的固体配重可有效吸收海浪的冲击。该结构还具有中空的六边形空间,使其在受到来自不同方向的海浪冲击时能够产生更大的接触面积。在低速横向运动条件下(频率低于 0.83 Hz),其开路电压 VOC、短路电流 ISC 和功率密度 Pm 分别可达 486.8 V、16.9 µA 和 10.26 W m-3,足以为 450 多个商用发光二极管供电。通过在小型电容器中储存电能,TENG 可以支持小型耗电设备,如温度计和计算器。因此,SLEP-TENG 与物联网设备结合使用,在复杂海域构建自供电传感系统方面具有巨大潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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