Harvesting high entropy triboelectric energy using a universal synchronous switching unit for self-powered wireless sensing systems

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL Nano Energy Pub Date : 2024-09-17 DOI:10.1016/j.nanoen.2024.110271

Shiyuan Chang, Jinkai Chen, Fuhai Liu, Jin Chen, Chenhao Zhang, Hanning Ni, Weipeng Xuan, Hao Jin, Shurong Dong, Hengyu Guo, Jikui Luo

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Abstract

Wireless sensor networks (WSNs) plays a crucial and indispensable role in modern society. Since the energy harvested by triboelectric nanogenerator (TENG) can be used either in battery-based or battery-less self-powered wireless systems, it holds an immense promise as a potential energy choice for WSNs. Due to the huge impedance of TENG, an instantaneous discharging unit is essential. However, as the harvested energy from TENG has high randomness, present discharging units cannot achieve high energy conversion efficiency, stability and universality at the same time. Here, an adaptive threshold voltage based synchronous switching unit (SSU) is proposed to meet all the above criteria. Systematic theoretical and experimental investigations have been conducted to optimize the performance, achieving energy conversion efficiency up to 82.7 % and high universality compatible with almost all kinds of TENGs. Finally, SSU is utilized in battery-based and battery-less self-powered systems, demonstrating its comprehensive all-round properties in achieving high energy conversion efficiency, stability and universality.

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利用通用同步开关装置收集高熵三电能，用于自供电无线传感系统

无线传感器网络（WSN）在现代社会中扮演着不可或缺的重要角色。由于三电纳米发电机（TENG）采集的能量既可用于基于电池的无线系统，也可用于无需电池的自供电无线系统，因此它作为 WSN 的潜在能源选择前景广阔。由于 TENG 的阻抗很大，因此必须有一个瞬时放电装置。然而，由于从 TENG 采集的能量具有高度随机性，目前的放电装置无法同时实现高能量转换效率、稳定性和通用性。在此，我们提出了一种基于自适应阈值电压的同步开关单元（SSU），以满足上述所有标准。通过系统的理论和实验研究对其性能进行了优化，实现了高达 82.7 % 的能量转换效率，以及与几乎所有种类的 TENG 兼容的高通用性。最后，在基于电池和无电池的自供电系统中使用了 SSU，证明了它在实现高能量转换效率、稳定性和通用性方面的全面特性。

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.