School of Advanced Materials Science and Engineering and ‡SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU) , Suwon 440-746, Republic of Korea.
ACS Nano. 2017 Nov 28;11(11):10733-10741. doi: 10.1021/acsnano.7b05203. Epub 2017 Oct 9.
Harvesting human-motion energy for power-integrated wearable electronics could be a promising way to extend the battery-operation time of small low-power-consumption electronics such as various sensors. For this purpose, a fully stretchable triboelectric nanogenerator (S-TENG) that has been fabricated with knitted fabrics and has been integrated with the directly available materials and techniques of the textile industry is introduced. This device has been adapted to cloth movement and can generate electricity under compression and stretching. We investigated plain-, double-, and rib-fabric structures and analyzed their potentials for textile-based energy harvesting. The superior stretchable property of the rib-knitted fabric contributed to a dramatic enhancement of the triboelectric power-generation performance owing to the increased contact surface. The present study shows that, under stretching motions of up to 30%, the S-TENG generates a maximum voltage and a current of 23.50 V and 1.05 μA, respectively, depending on the fabric structures. Under compressions at 3.3 Hz, the S-TENG generated a constant average root-mean square power of up to 60 μW. The results of this work show the feasibility of a cloth-integrated and industrial-ready TENG for the harvesting of energy from human biomechanical movements in cloth and garments.
为了延长小型低功耗电子产品（如各种传感器）的电池运行时间，从人体运动中获取能量以供集成电源可能是一种很有前途的方法。为此，介绍了一种完全可拉伸的摩擦纳米发电机（S-TENG），它是用针织面料制造的，并结合了纺织工业中现成的材料和技术。该设备已适应布的运动，可以在压缩和拉伸下发电。我们研究了平纹、双纹和罗纹织物结构，并分析了它们在基于纺织品的能量收集方面的潜力。由于增加了接触面积，罗纹针织面料的卓越可拉伸性能极大地提高了摩擦发电性能。本研究表明，在拉伸运动高达 30%的情况下，S-TENG 分别产生最大电压和电流为 23.50 V 和 1.05 μA，具体取决于织物结构。在 3.3 Hz 的压缩下，S-TENG 产生的平均均方根功率高达 60 μW。这项工作的结果表明，从织物和服装中的人体生物力学运动中获取能量的织物集成和工业就绪 TENG 是可行的。
