Ternary composite solid-state flexible supercapacitor based on nanocarbons/manganese dioxide/PEDOT:PSS fibres
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García-Torres, José and Crean, Carol (2018) Ternary composite solid-state flexible supercapacitor based on nanocarbons/manganese dioxide/PEDOT:PSS fibres Materials & Design, 155. pp. 194-202.
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Official URL: https://doi.org/10.1016/j.matdes.2018.05.070
Abstract
Flexible fibre supercapacitors were fabricated by wet-spinning from carbon nanotube/carbon black dispersions, followed by straightforward surface treatments to sequentially deposit MnO2 and PEDOT:PSS to make ternary composite fibres. Dip coating the fibres after the initial wet-spinning coagulation creates a simple solution-based continuous process to produce fibre-based energy storage. Well-controlled depositions were achieved and have been optimised at each stage to yield the highest specific capacitance. A single ternary composite fibre exhibited a specific capacitance of 351 F g−1. Two ternary composite fibre electrodes were assembled together in a parallel solid-state device, with polyvinyl alcohol/H3PO4 gel used as both an electrolyte and a separator. The assembled flexible device exhibited a high specific capacitance of 51.3 F g−1 with excellent both charge-discharge cycling (84.2% capacitance retention after 1000 cycles) and deformation cycling stability (82.1% capacitance retention after 1000 bending cycles).
| Item Type: | Article | |||||||||
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| Divisions : | Faculty of Engineering and Physical Sciences > Chemistry | |||||||||
| Authors : |
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| Date : | 1 June 2018 | |||||||||
| Funders : | Engineering and Physical Sciences Research Council (EPSRC) | |||||||||
| DOI : | 10.1016/j.matdes.2018.05.070 | |||||||||
| Copyright Disclaimer : | © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||||||
| Uncontrolled Keywords : | Fibre supercapacitor; Carbon nanotube; Wet-spinning; Manganese oxides; PEDOT:PSS; Energy storage | |||||||||
| Depositing User : | Clive Harris | |||||||||
| Date Deposited : | 05 Jun 2018 10:02 | |||||||||
| Last Modified : | 02 Jun 2019 02:08 | |||||||||
| URI: | http://epubs.surrey.ac.uk/id/eprint/846989 |
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