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Ternary composite solid-state flexible supercapacitor based on nanocarbons/manganese dioxide/PEDOT:PSS fibres

handle: 2117/121366
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). Peer Reviewed
- Universitat Polite`cnica de Catalunya Spain
- University of Surrey United Kingdom
- Universitat Politècnica de Catalunya Spain
Àrees temàtiques de la UPC::Enginyeria dels materials, Energy storage, Manganese oxides, Energia -- Emmagatzematge, Carbon nanotubes, 621, :Enginyeria dels materials [Àrees temàtiques de la UPC], Fibre supercapacitor Carbon nanotube Wet-spinning Manganese oxides PEDOT:PSS Energy storage, Manganès -- Oxidació, Nanotubs de carboni, PSS Energy storage [Fibre supercapacitor Carbon nanotube Wet-spinning Manganese oxides PEDOT]
Àrees temàtiques de la UPC::Enginyeria dels materials, Energy storage, Manganese oxides, Energia -- Emmagatzematge, Carbon nanotubes, 621, :Enginyeria dels materials [Àrees temàtiques de la UPC], Fibre supercapacitor Carbon nanotube Wet-spinning Manganese oxides PEDOT:PSS Energy storage, Manganès -- Oxidació, Nanotubs de carboni, PSS Energy storage [Fibre supercapacitor Carbon nanotube Wet-spinning Manganese oxides PEDOT]
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