Electrolyte mobility in supercapacitor electrodes – Solid state NMR studies on hierarchical and narrow pore sized carbons

Fulik N, Hippauf F, Leistenschneider D, Paasch S, Kaskel S, Brunner E, Borchardt L (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Energy Storage Materials Elsevier

Book Volume: 12

Pages Range: 183-190

DOI: 10.1016/j.ensm.2017.12.008

Abstract

Electrical double layer capacitors are in the special focus of current energy storage research due to their high power density. They store charge physically by quick electrosorption of electrolyte ions on the surface of porous carbon electrodes. However, fundamental insight into the storage mechanism, especially on a molecular level is limited despite of the crucial importance to understand and improve this promising technology. We have investigated and quantified the mobility of electrolyte ions in supercapacitor electrodes by means of solid-state nuclear magnetic resonance (NMR) spectroscopy. We could discriminate between the mobility of cations, anions, and solvent molecules. The exchange of these species between different pore systems as well as between pore system and external bulk environment is studied in detail by NMR spectroscopic methods.

Involved external institutions

Technische Universität Dresden DE Germany (DE) Fraunhofer-Institut für Werkstoff- und Strahltechnik (IWS) / Fraunhofer Institute for Material and Beam Technology DE Germany (DE)

How to cite

APA:

Fulik, N., Hippauf, F., Leistenschneider, D., Paasch, S., Kaskel, S., Brunner, E., & Borchardt, L. (2018). Electrolyte mobility in supercapacitor electrodes – Solid state NMR studies on hierarchical and narrow pore sized carbons. Energy Storage Materials, 12, 183-190. https://doi.org/10.1016/j.ensm.2017.12.008

MLA:

Fulik, N., et al. "Electrolyte mobility in supercapacitor electrodes – Solid state NMR studies on hierarchical and narrow pore sized carbons." Energy Storage Materials 12 (2018): 183-190.

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