一种基于螺旋旋转轴的三电纳米发电机,可高效采集海洋静水压差能量

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引用次数: 0

摘要

用于水下传感和勘探的设备通常依靠电缆或电池提供能源,导致能源供应有限且不方便,并造成海洋环境污染,阻碍了分布式海洋传感网络的可持续发展。在此,我们设计了一种基于螺旋轴驱动的深海压差三电纳米发电机(DP-TENG),使用改性聚合物材料,利用不同海洋深度的静水压力梯度能量为水下设备供电。螺旋轴结构将一次压缩转换为 TENG 转子的多次旋转,实现了压差能的高效转换。多对电极设计使 DP-TENG 能够产生 61.7 μA 的峰值电流,瞬时电流密度可达 0.69 μA cm-2,并可通过优化轴的螺旋角度提高输出性能。DP-TENG 可在五个工作周期内将一个 33 μF 的电容器充电至 17.5 V。它还能为数字计算器供电,并点亮 116 个商用功率发光二极管,显示出卓越的输出能力。DP-TENG 结构简单、生产成本低、外形小巧,可与水下航行器无缝集成。该成果为水下蓝色能量采集带来了广阔的前景,有望推动自供电设备的发展,实现新兴的 "智慧海洋 "和蓝色经济应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A triboelectric nanogenerator based on a spiral rotating shaft for efficient marine energy harvesting of the hydrostatic pressure differential

A triboelectric nanogenerator based on a spiral rotating shaft for efficient marine energy harvesting of the hydrostatic pressure differential

Equipment used in underwater sensing and exploration typically relies on cables or batteries for energy supply, resulting in a limited and inconvenient energy supply and marine environmental pollution that hinder the sustainable development of distributed ocean sensing networks. Here, we design a deep-sea differential-pressure triboelectric nanogenerator (DP-TENG) based on a spiral shaft drive using modified polymer materials to harness the hydrostatic pressure gradient energy at varying ocean depths to power underwater equipment. The spiral shaft structure converts a single compression into multiple rotations of the TENG rotor, achieving efficient conversion of differential pressure energy. The multi-pair electrode design enables the DP-TENG to generate a peak current of 61.7 μA, the instantaneous current density can reach 0.69 μA cm−2, and the output performance can be improved by optimizing the spiral angle of the shaft. The DP-TENG can charge a 33 μF capacitor to 17.5 V within five working cycles. It can also power a digital calculator and light up 116 commercial power light-emitting diodes, demonstrating excellent output capability. With its simple structure, low production cost, and small form factor, the DP-TENG can be seamlessly integrated with underwater vehicles. The results hold broad prospects for underwater blue energy harvesting and are expected to contribute to the development of self-powered equipment toward emerging “smart ocean” and blue economy applications.

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材料导报:能源(英文)
材料导报:能源(英文) Renewable Energy, Sustainability and the Environment, Nanotechnology
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