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Issue 10, 2020
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Roll-to-roll printed high voltage supercapattery in lead-contaminated aqueous electrolyte

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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.

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

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Article information


Submitted
14 Dec 2019
Accepted
15 Feb 2020
First published
17 Feb 2020

Phys. Chem. Chem. Phys., 2020,22, 5597-5603
Article type
Paper

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

T. Getachew, S. Mehretie, H. Yip, R. Xia and S. Admassie, Phys. Chem. Chem. Phys., 2020, 22, 5597
DOI: 10.1039/C9CP06730B

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