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Improvement of system capacitance via weavable superelastic biscrolled yarn supercapacitors

Journal Article


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Abstract


  • Yarn-based supercapacitors having improved performance are needed for existing and emerging wearable applications. Here, we report weavable carbon nanotube yarn supercapacitors having high performance because of high loadings of rapidly accessible charge storage particles (above 90 wt% MnO2). The yarn electrodes are made by a biscrolling process that traps host MnO2 nanoparticles within the galleries of helically scrolled carbon nanotube sheets, which provide strength and electrical conductivity. Despite the high loading of brittle metal oxide particles, the biscrolled solid-state yarn supercapacitors are flexible and can be made elastically stretchable (up to 30% strain) by over-twisting to produce yarn coiling. The maximum areal capacitance of the yarn electrodes were up to 100 times higher than for previously reported fibres or yarn supercapacitors. Similarly, the energy density of complete, solid-state supercapacitors made from biscrolled yarn electrodes with gel electrolyte coating were significantly higher than for previously reported fibre or yarn supercapacitors.

Authors


  •   Choi, Changsoon (external author)
  •   Kim, Kang Min (external author)
  •   Kim, Keon Jung. (external author)
  •   Lepro, Xavier (external author)
  •   Spinks, Geoff M.
  •   Baughman, Ray H. (external author)
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2016

Citation


  • Choi, C., Kim, K., Kim, K. Jung., Lepro, X., Spinks, G. M., Baughman, R. H. & Kim, S. Jeong. (2016). Improvement of system capacitance via weavable superelastic biscrolled yarn supercapacitors. Nature Communications, 7 13811-1-13811-8.

Scopus Eid


  • 2-s2.0-85006325278

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3298&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2277

Start Page


  • 13811-1

End Page


  • 13811-8

Volume


  • 7

Abstract


  • Yarn-based supercapacitors having improved performance are needed for existing and emerging wearable applications. Here, we report weavable carbon nanotube yarn supercapacitors having high performance because of high loadings of rapidly accessible charge storage particles (above 90 wt% MnO2). The yarn electrodes are made by a biscrolling process that traps host MnO2 nanoparticles within the galleries of helically scrolled carbon nanotube sheets, which provide strength and electrical conductivity. Despite the high loading of brittle metal oxide particles, the biscrolled solid-state yarn supercapacitors are flexible and can be made elastically stretchable (up to 30% strain) by over-twisting to produce yarn coiling. The maximum areal capacitance of the yarn electrodes were up to 100 times higher than for previously reported fibres or yarn supercapacitors. Similarly, the energy density of complete, solid-state supercapacitors made from biscrolled yarn electrodes with gel electrolyte coating were significantly higher than for previously reported fibre or yarn supercapacitors.

Authors


  •   Choi, Changsoon (external author)
  •   Kim, Kang Min (external author)
  •   Kim, Keon Jung. (external author)
  •   Lepro, Xavier (external author)
  •   Spinks, Geoff M.
  •   Baughman, Ray H. (external author)
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2016

Citation


  • Choi, C., Kim, K., Kim, K. Jung., Lepro, X., Spinks, G. M., Baughman, R. H. & Kim, S. Jeong. (2016). Improvement of system capacitance via weavable superelastic biscrolled yarn supercapacitors. Nature Communications, 7 13811-1-13811-8.

Scopus Eid


  • 2-s2.0-85006325278

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=3298&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/2277

Start Page


  • 13811-1

End Page


  • 13811-8

Volume


  • 7