Stretchable fabric generates electric power from woven thermoelectric fibers.

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ID: 89637
2020
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Abstract
Assembling thermoelectric modules into fabric to harvest energy from body heat could one day power multitudinous wearable electronics. However, the invalid 2D architecture of fabric limits the application in thermoelectrics. Here, we make the valid thermoelectric fabric woven out of thermoelectric fibers producing an unobtrusive working thermoelectric module. Alternately doped carbon nanotube fibers wrapped with acrylic fibers are woven into π-type thermoelectric modules. Utilizing elasticity originating from interlocked thermoelectric modules, stretchable 3D thermoelectric generators without substrate can be made to enable sufficient alignment with the heat flow direction. The textile generator shows a peak power density of 70 mWm for a temperature difference of 44 K and excellent stretchability (~80% strain) with no output degradation. The compatibility between body movement and sustained power supply is further displayed. The generators described here are true textiles, proving active thermoelectrics can be woven into various fabric architectures for sensing, energy harvesting, or thermal management.
Reference Key
sun2020stretchablenature Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Sun, Tingting;Zhou, Beiying;Zheng, Qi;Wang, Lianjun;Jiang, Wan;Snyder, Gerald Jeffrey;
Journal Nature communications
Year 2020
DOI
10.1038/s41467-020-14399-6
URL
Keywords
energy-efficient electrode architecture iro2 magnetic assembly sno2

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