State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, 201620, Shanghai, P.R. China.
College of Electronics and Information Engineering, Sichuan University, 610064, Chengdu, P.R. China.
Nat Commun. 2019 Feb 20;10(1):868. doi: 10.1038/s41467-019-08846-2.
Biomechanical energy harvesting textiles based on nanogenerators that convert mechanical energy into electricity have broad application prospects in next-generation wearable electronic devices. However, the difficult-to-weave structure, limited flexibility and stretchability, small device size and poor weatherability of conventional nanogenerator-based devices have largely hindered their real-world application. Here, we report a highly stretchable triboelectric yarn that involves unique structure design based on intrinsically elastic silicone rubber tubes and extrinsically elastic built-in stainless steel yarns. By using a modified melt-spinning method, we realize scalable-manufacture of the self-powered yarn. A hundred-meter-length triboelectric yarn is demonstrated, but not limited to this size. The triboelectric yarn shows a large working strain (200%) and promising output. Moreover, it has superior performance in liquid, therefore showing all-weather durability. We also show that the development of this energy yarn facilitates the manufacturing of large-area self-powered textiles and provide an attractive direction for the study of amphibious wearable technologies.
基于纳米发电机将机械能转化为电能的仿生能量采集纺织品在下一代可穿戴电子设备中有广泛的应用前景。然而，传统基于纳米发电机的设备由于编织结构困难、柔韧性和拉伸性有限、器件尺寸小以及耐候性差，在很大程度上阻碍了其实际应用。在这里，我们报告了一种高度可拉伸的摩擦电纱线，它涉及基于固有弹性硅橡胶管和外在弹性内置不锈钢纱线的独特结构设计。通过使用改进的熔融纺丝方法，我们实现了自供电纱线的可扩展制造。展示了百米长的摩擦电纱线，但不仅限于此尺寸。该摩擦电纱线具有较大的工作应变（200%）和有前途的输出。此外，它在液体中具有优异的性能，因此具有全天候的耐用性。我们还表明，这种能量纱线的发展促进了大面积自供电纺织品的制造，并为两栖可穿戴技术的研究提供了有吸引力的方向。
