Printable Thin Film Supercapacitors Using Single-Walled Carbon Nanotubes
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AbstractThin film supercapacitors were fabricated using printable materials to make flexible devices on plastic. The active electrodes were made from sprayed networks of single-walled carbon nanotubes (SWCNTs) serving as both electrodes and charge collectors. Using a printable aqueous gel electrolyte as well as an organic liquid electrolyte, the performances of the devices show very high energy and power densities (6 W h/kg for both electrolytes and 23 and 70 kW/kg for aqueous gel electrolyte and organic electrolyte, respectively) which is comparable to performance in other SWCNT-based supercapacitor devices fabricated using different methods. The results underline the potential of printable thin film supercapacitors. The simplified architecture and the sole use of printable materials may lead to a new class of entirely printable charge storage devices allowing for full integration with the emerging field of printed electronics. © 2009 American Chemical Society.
CitationKaempgen M, Chan CK, Ma J, Cui Y, Gruner G (2009) Printable Thin Film Supercapacitors Using Single-Walled Carbon Nanotubes. Nano Lett 9: 1872–1876. Available: http://dx.doi.org/10.1021/nl8038579.
SponsorsY.C. acknowledges support from the Global Climate and Energy Project at Stanford, US Office of Naval Research, and King Abdullah University of Science and Technology. C.K.C. acknowledges support from a National Science Foundation Graduate Fellowship and Stanford Graduate Fellowship.
PublisherAmerican Chemical Society (ACS)
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