A Flexible TENG Based on Micro-Structure Film for Speed Skating Techniques Monitoring and Biomechanical Energy Harvesting

Nanomaterials

Xu Yang¹  Tianming Zhao²  Yongsheng Zhu³  Fengxin Sun³  Changjun Jia³  Zhuo Lu⁴  Yupeng Mao⁴  Shouwei Zhang⁴ 

[1] Changchun Polytechnic Tourism School, Changchun 130022, China;College of Sciences, Northeastern University, Shenyang 110819, China;Physical Education Department, Northeastern University, Shenyang 110819, China;School of Physical Education, Northeast Normal University, Changchun 130024, China;

关键词: self-powered;    wearable flexible sensor;    energy harvesting;    human motion monitoring;    triboelectric nanogenerator;   

DOI  :  10.3390/nano12091576

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown