Roll-to-roll printed high voltage supercapattery in lead-contaminated aqueous electrolyte

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Teklewold Getachew
  • Solomon Mehretie
  • Hin-Lap Yip
  • Ruidong Xia
  • Shimelis Admassie

Detail(s)

Original languageEnglish
Pages (from-to)5597-5603
Journal / PublicationPhysical Chemistry Chemical Physics
Volume22
Issue number10
Online published17 Feb 2020
Publication statusPublished - 14 Mar 2020
Externally publishedYes

Abstract

This work investigated the potential application of roll-to-roll printed PEDOT:PSS on an ITO/PET substrate using Pb2+ containing 0.1 M NaCl aqueous solution for a supercapattery. The PEDOT:PSS/ITO/PET electrode achieved 2.2 μAh cm-2 (46.5 mAh g-1) in 0.1 M NaCl and 10 μAh cm-2 (216.8 mAh g-1) in 2 mM Pb2+/0.1 M NaCl at a current density of 0.2 mA cm-2 (4.34 A g-1). The electrode also shows good cyclic performance that retains 63% of its initial capacitance after 1000 charge-discharge cycles. A device operating at a high voltage of 1.8 V was built using PEDOT:PSS/ITO/PET in aqueous electrolyte. The energy density of the symmetric PEDOT:PSS/ITO/PET device is 6.2 Wh kg-1 in 0.1 M NaCl and is improved to 11 Wh kg-1 in 3 mM Pb2+/0.1 M NaCl.

Citation Format(s)

Roll-to-roll printed high voltage supercapattery in lead-contaminated aqueous electrolyte. / Getachew, Teklewold; Mehretie, Solomon; Yip, Hin-Lap; Xia, Ruidong; Admassie, Shimelis.

In: Physical Chemistry Chemical Physics, Vol. 22, No. 10, 14.03.2020, p. 5597-5603.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review