High-efficiency super-elastic liquid metal based triboelectric fibers and textiles.

Nature Communications
Chaoqun DongFabien Sorin

Abstract

Fibers that harvest mechanical energy via the triboelectric effect are excellent candidates as power sources for wearable electronics and functional textiles. Thus far however, their fabrication remains complex, and exhibited performances are below the state-of-the-art of 2D planar configurations, making them impractical. Here, we demonstrate the scalable fabrication of micro-structured stretchable triboelectric fibers with efficiencies on par with planar systems. We use the thermal drawing process to fabricate advanced elastomer fibers that combine a micro-textured surface with the integration of several liquid metal electrodes. Such fibers exhibit high electrical outputs regardless of repeated large deformations, and can sustain strains up to 560%. They can also be woven into deformable machine-washable textiles with high electrical outputs up to 490 V, 175 nC. In addition to energy harvesting, we demonstrate self-powered breathing monitoring and gesture sensing capabilities, making this triboelectric fiber platform an exciting avenue for multi-functional wearable systems and smart textiles.

References

Mar 27, 2010·Science·John A RogersYonggang Huang
Aug 15, 2012·Nano Letters·Guang ZhuZhong Lin Wang
Jul 9, 2014·Sensors·Matteo Stoppa, Alessandro Chiolerio
Feb 6, 2015·Advanced Materials·Andrew Fassler, Carmel Majidi
Feb 12, 2015·ACS Nano·Wanchul SeungSang-Woo Kim
Aug 10, 2018·Nature·Michael ReinYoel Fink
Oct 3, 2018·Advanced Materials·Wei YanFabien Sorin
Feb 16, 2019·Advanced Materials·Federica SordoFabien Sorin

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Citations

Mar 9, 2021·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Qiu HuangSu Chen
May 29, 2021·Lab on a Chip·Rui XueYukun Ren
Jun 12, 2021·Advanced Healthcare Materials·Amanda Singer, Jacob T Robinson
Sep 8, 2021·ACS Applied Materials & Interfaces·I RichardF Sorin

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Software Mentioned

Digilent Analog Discovery
Geniomer
Labview
COMSOL

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