A continuous spiral-spring triboelectric nanogenerator for energy harvesting and self-sensing under ultra-low-frequency rotation

IF 3.8 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2026-10-05 DOI:10.1063/5.0350763

Shitong Fang,Yi Guan,Jiabao Zou,Miao Chen,Liangdong Wei,Liuchao Jin,Zhihui Lai,Biao Wang,Mingjing Cai,Wei-Hsin Liao

{"title":"A continuous spiral-spring triboelectric nanogenerator for energy harvesting and self-sensing under ultra-low-frequency rotation","authors":"Shitong Fang,Yi Guan,Jiabao Zou,Miao Chen,Liangdong Wei,Liuchao Jin,Zhihui Lai,Biao Wang,Mingjing Cai,Wei-Hsin Liao","doi":"10.1063/5.0350763","DOIUrl":null,"url":null,"abstract":"Self-powered monitoring of slowly rotating components is hindered by the small relative speed and limited installation space available to conventional rotary triboelectric nanogenerators (TENGs). Here, a continuously driven unidirectional rotary TENG (CDUR-TENG) is developed by integrating a multilayer spiral-spring electrode with a ratchet-triggered energy-storage/release mechanism. During winding, the spring stores elastic energy while its adjacent triboelectric interfaces progressively separate; ratchet disengagement then initiates rapid elastic recoil and concentrated charge transfer. The device therefore decouples the electrical pulse from the slow external rotation. At 0.2 Hz, the CDUR-TENG provides a peak-to-peak open-circuit voltage of approximately 130 V and a maximum short-circuit current of 55 μA; it transfers 0.165 μC per cycle and reaches a maximum instantaneous power of 2.182 mW at 1 Hz and 1.1 MΩ. The resulting normalized power density reaches 191.4 W m−3Hz−1, at least 8.57 times that of the compared rotary harvesters. Voltage signatures further distinguish operating angle, angular overshoot, and reverse rotation, demonstrating a compact route toward self-powered condition monitoring under ultra-low-frequency rotation.","PeriodicalId":8094,"journal":{"name":"Applied Physics Letters","volume":"32 1","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics Letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1063/5.0350763","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

Self-powered monitoring of slowly rotating components is hindered by the small relative speed and limited installation space available to conventional rotary triboelectric nanogenerators (TENGs). Here, a continuously driven unidirectional rotary TENG (CDUR-TENG) is developed by integrating a multilayer spiral-spring electrode with a ratchet-triggered energy-storage/release mechanism. During winding, the spring stores elastic energy while its adjacent triboelectric interfaces progressively separate; ratchet disengagement then initiates rapid elastic recoil and concentrated charge transfer. The device therefore decouples the electrical pulse from the slow external rotation. At 0.2 Hz, the CDUR-TENG provides a peak-to-peak open-circuit voltage of approximately 130 V and a maximum short-circuit current of 55 μA; it transfers 0.165 μC per cycle and reaches a maximum instantaneous power of 2.182 mW at 1 Hz and 1.1 MΩ. The resulting normalized power density reaches 191.4 W m−3Hz−1, at least 8.57 times that of the compared rotary harvesters. Voltage signatures further distinguish operating angle, angular overshoot, and reverse rotation, demonstrating a compact route toward self-powered condition monitoring under ultra-low-frequency rotation.

查看原文本刊更多论文

一种用于超低频旋转能量收集和自传感的连续螺旋弹簧摩擦电纳米发电机

传统的旋转摩擦纳米发电机（TENGs）相对速度小，安装空间有限，阻碍了对缓慢旋转部件的自供电监测。本文通过将多层螺旋弹簧电极与棘轮触发能量存储/释放机制集成在一起，开发了一种连续驱动的单向旋转TENG （cdu -TENG）。在缠绕过程中，弹簧储存弹性能，相邻的摩擦电界面逐渐分离；棘轮脱离，然后启动快速弹性后坐力和集中的电荷转移。因此，该装置将电脉冲从缓慢的外部旋转中分离出来。在0.2 Hz时，cdu - teng的峰对峰开路电压约为130 V，最大短路电流为55 μA；每周期传输0.165 μC，在1hz和1.1 MΩ下最大瞬时功率为2.182 mW。所得到的归一化功率密度达到191.4 W m−3Hz−1，至少是所比较的旋转收割机的8.57倍。电压特征进一步区分了工作角度、角度超调和反向旋转，展示了在超低频率旋转下实现自供电状态监测的紧凑路线。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.