Lu Zhuo, Jia Changjun, Yang Xu, Zhu Yongsheng, Sun Fengxin, Zhao Tianming, Zhang Shouwei, Mao Yupeng
School of Physical Education, Northeast Normal University, Changchun 130024, China.
Physical Education Department, Northeastern University, Shenyang 110819, China.
Nanomaterials (Basel). 2022 May 6;12(9):1576. doi: 10.3390/nano12091576.
Wearable motion-monitoring systems have been widely used in recent years. However, the battery energy storage problem of traditional wearable devices limits the development of human sports training applications. In this paper, a self-powered and portable micro-structure triboelectric nanogenerator (MS-TENG) has been made. It consists of micro-structure polydimethylsiloxane (PDMS) film, fluorinated ethylene propylene (FEP) film, and lithium chloride polyacrylamide (LiCl-PAAM) hydrogel. Through the micro-structure, the voltage of the MS-TENG can be improved by 7 times. The MS-TENG provides outstanding sensing properties: maximum output voltage of 74 V, angular sensitivity of 1.016 V/degree, high signal-to-noise ratio, and excellent long-term service stability. We used it to monitor the running skills of speed skaters. It can also store the biomechanical energy which is generated in the process of speed skating through capacitors. It demonstrates capability of sensor to power electronic calculator and electronic watch. In addition, as a flexible electrode hydrogel, it can readily stretch over 1300%, which can help improve the service life and work stability of MS-TENG. Therefore, MS-TENG has great application potential in human sports training monitoring and big data analysis.
近年来，可穿戴运动监测系统已被广泛应用。然而，传统可穿戴设备的电池储能问题限制了人类运动训练应用的发展。在本文中，制作了一种自供电的便携式微结构摩擦纳米发电机（MS-TENG）。它由微结构聚二甲基硅氧烷（PDMS）薄膜、氟化乙烯丙烯（FEP）薄膜和氯化锂聚丙烯酰胺（LiCl-PAAM）水凝胶组成。通过微结构，MS-TENG的电压可提高7倍。MS-TENG具有出色的传感特性：最大输出电压为74V，角灵敏度为1.016V/度，高信噪比以及出色的长期服务稳定性。我们用它来监测速滑运动员的跑步技巧。它还可以通过电容器存储速滑过程中产生的生物机械能。它展示了传感器为电子计算器和电子手表供电的能力。此外，作为一种柔性电极水凝胶，它可以轻松拉伸超过1300%，这有助于提高MS-TENG的使用寿命和工作稳定性。因此，MS-TENG在人类运动训练监测和大数据分析方面具有巨大的应用潜力。
