Continuous and scalable manufacture of amphibious energy yarns and textiles

Wei Gong, Chengyi Hou (), Jie Zhou, Yinben Guo, Wei Zhang, Yaogang Li, Qinghong Zhang () and Hongzhi Wang ()
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Wei Gong: Donghua University
Chengyi Hou: Donghua University
Jie Zhou: Sichuan University
Yinben Guo: Donghua University
Wei Zhang: Donghua University
Yaogang Li: Donghua University
Qinghong Zhang: Donghua University
Hongzhi Wang: Donghua University

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: Abstract 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.

Date: 2019
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DOI: 10.1038/s41467-019-08846-2

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