Printed environmentally friendly supercapacitors with ionic liquid electrolytes on paper
| Autor: | Jari Keskinen, Elina Jansson, L. von Hertzen, Carl-Eric Wilén, Fredrik Pettersson, Kirsi Tappura, Ronald Österbacka, Yanxi Zhang, Tommi Remonen |
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| Rok vydání: | 2014 |
| Předmět: |
Supercapacitor
supercapacitors Materials science activated carbons Renewable Energy Sustainability and the Environment Inorganic chemistry Energy Engineering and Power Technology Electrolyte Environmentally friendly Dielectric spectroscopy Deep eutectic solvent chemistry.chemical_compound chemistry Printed electronics environmentally friendly Ionic liquid printed electronics Electrical and Electronic Engineering Physical and Theoretical Chemistry deep eutectic solvents Choline chloride |
| Zdroj: | Pettersson, F, Keskinen, J, Remonen, T, von Hertzen, L, Jansson, E, Tappura, K, Zhang, Y, Wilén, C-E & Österbacka, R 2014, ' Printed environmentally friendly supercapacitors with ionic liquid electrolytes on paper ', Journal of Power Sources, vol. 271, pp. 298-304 . https://doi.org/10.1016/j.jpowsour.2014.08.020 |
| ISSN: | 0378-7753 |
| Popis: | Environmentally friendly supercapacitors are fabricated using commercial grade aluminum coated paper as a substrate and symmetrical activated carbon electrodes as large area electrodes. Different choline chloride-based eutectic solvents are used as electrolyte. These are inexpensive, environmentally friendly and have a larger operating window compared to that of water electrolytes. As the entire device is printed and the materials used are inexpensive, both small- and large-area power sources can be fabricated to be used in cheap, disposable and recyclable devices. Supercapacitors with different eutectic solvents are measured using cyclic charge–discharge and impedance spectroscopy measurements and compared to one widely used and one “green” imidazolium ionic liquid; EMIM:TFSI and EcoEng 212™, respectively. A mixture of ethylene glycol and choline chloride, Glyceline™, show the highest capacitance and power densities of the electrolytes being tested, including the imidazolium alternatives. |
| Databáze: | OpenAIRE |
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