Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/106498
Title: | Effect of the ionic conductivity on the performance of polyelectrolyte-based supercapacitors | Authors: | Wee, Grace Larsson, Oscar Srinivasan, Madhavi Berggren, Magnus Crispin, Xavier Mhaisalkar, Subodh |
Keywords: | DRNTU::Engineering::Materials | Issue Date: | 2010 | Source: | Wee, G., Larsson, O., Srinivasan, M., Berggren, M., Crispin, X., & Mhaisalkar, S. (2010). Effect of the ionic conductivity on the performance of polyelectrolyte-based supercapacitors. Advanced Functional Materials, 20(24), 4344-4350. | Series/Report no.: | Advanced functional materials | Abstract: | In the emerging technology field of printed electronics, circuits are envisioned to be powered with printed energy sources, such as printed batteries and printed supercapacitors (SCs). For manufacturing and reliability issues, solid electrolytes are preferred instead of liquid electrolytes. Here, a solid-state, polyanionic proton conducting electrolyte, poly(styrenesulfonic acid) (PSS:H), is demonstrated for the first time as an effective ion conducting electrolyte medium in SCs with electrodes based on carbon nanotube (CNT) networks. The effect of the ionic conductivity in the PSS:H film of those SCs is studied at different levels of relative humidity (RH) with impedance spectroscopy, cyclic voltammetry, and galvanostatic charge-discharge techniques. High capacitance values (85 F g−1 at 80% RH) are obtained for these SCs due to the extremely high effective electrode area of the CNTs and the enhanced ionic conductivity of the PSS:H film at increasing RH level. The charging dynamics are primarily limited by the ionic conductivity of the electrolyte rather than a poor contact between the electrolyte and the CNT electrodes. The use of polyelectrolytes in SCs provides high mechanical strength and flexibility, while maintaining a high capacitance value, enabling a new generation of printable solid-state charge storage devices. | URI: | https://hdl.handle.net/10356/106498 http://hdl.handle.net/10220/19184 |
ISSN: | 1616-301X | DOI: | 10.1002/adfm.201001096 | Schools: | School of Materials Science & Engineering | Research Centres: | Energy Research Institute @ NTU (ERI@N) Research Techno Plaza |
Rights: | © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. | Fulltext Permission: | none | Fulltext Availability: | No Fulltext |
Appears in Collections: | ERI@N Journal Articles MSE Journal Articles |
SCOPUSTM
Citations
5
81
Updated on Mar 28, 2024
Web of ScienceTM
Citations
5
70
Updated on Oct 25, 2023
Page view(s) 5
1,004
Updated on Mar 28, 2024
Google ScholarTM
Check
Altmetric
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.