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 solutionbased
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 c...
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 solutionbased
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 chargedischarge
cycling (84.2% capacitance retention after 1000 cycles) and deformation cycling stability (82.1% capacitance
retention after 1000 bending cycles).
Citation
Garcia, J., Crean, C. Ternary composite solid-state flexible supercapacitor based on nanocarbons/manganese dioxide/PEDOT:PSS fibres. "Materials & design", 5 Octubre 2018, vol. 155, p. 194-202.
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