Flexible, fiber-shaped supercapacitors with roll-type assembly
| Autor: | Heejoon Ahn, Seongil Yu, Bebi Patil |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Supercapacitor
Materials science Orders of magnitude (temperature) General Chemical Engineering 02 engineering and technology Electrolyte 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Polyvinyl alcohol Capacitance 0104 chemical sciences chemistry.chemical_compound chemistry Bundle Electrode Composite material 0210 nano-technology Power density |
| Zdroj: | Journal of Industrial and Engineering Chemistry. 71:220-227 |
| ISSN: | 1226-086X |
| Popis: | A fiber-shaped supercapacitor (FSC) with a unique roll-type configuration is developed by simply rolling polyaniline-coated carbon fiber bundle electrodes with an H2SO4/polyvinyl alcohol gel electrolyte. The roll-type polyaniline-coated carbon fibers FSC exhibits four times higher capacitance retention than the twist-type fiber-shaped supercapacitor and shows an energy density of 2.97 Wh kg−1 at a power density of 4 kW kg−1, which is almost three orders of magnitude higher than that of the twist-type FSC (0.004 Wh kg−1). The enhanced performance of the roll-type FSC is attributable to its unique roll-type configuration, which creates a short and consistent distance between the electrodes. |
| Databáze: | OpenAIRE |
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