| Publikationstyp: | Konferenz: Sonstiges |
| Art der Begutachtung: | Keine Angabe |
| Titel: | Towards rigorous thermodynamics in aqueous flow batteries : measuring activity coefficients with differential scanning calorimetry |
| Autor/-in: | Mourouga, Gaël Baudrin, Emmanuel Courty, Mathieu Schmidt, Thomas J. Schumacher, Jürgen |
| et. al: | No |
| Angaben zur Konferenz: | 17th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (MODVAL 17), online, 20-22 April 2021 |
| Erscheinungsdatum: | 20-Apr-2021 |
| Sprache: | Englisch |
| Schlagwörter: | Energy storage; Flow Batteries; Thermodynamics; Modelling |
| Fachgebiet (DDC): | 540: Chemie 621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnik |
| Zusammenfassung: | The field of aqueous organic redox-flow batteries (AORFBs) has been developing fast in re-cent years, and many chemistries are starting to emerge as serious contenders for grid-scale stor-age owing to their long lifetime, environmental friendliness, and low cost. Their main disadvantage, namely low energy density, can be overcome by increasing the concentration of active materials, at the cost of increasing the non-ideal behaviour of the electrolytes. Many authors have brought evidence that the dilute solution hypothesis does not hold for these systems, and that voltage or osmosis predictions should be parametrised with chemical activities rather than concentrations. Unfortunately, the activity coefficients of such novel electrolytes have not, for the most part, been reported in the literature. The present work aims to provide a fast method, both experimental and computational, for the estimation of activity coefficients at different temperatures using Differ-ential Scanning Calorimetry (DSC), the Gibbs-Helmholtz equation and the Pitzer equations. The accuracy of the method is demonstrated on common salts (NaCl, KCl, CaCl2) and applied to the all-organic TEMPTMA/Paraquat aqueous flow battery system. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/22638 |
| Volltext Version: | Publizierte Version |
| Lizenz (gemäss Verlagsvertrag): | Keine Angabe |
| Departement: | School of Engineering |
| Organisationseinheit: | Institute of Computational Physics (ICP) |
| Publiziert im Rahmen des ZHAW-Projekts: | Redox Flow Battery Campus |
| Enthalten in den Sammlungen: | Publikationen School of Engineering |
Dateien zu dieser Ressource:
Es gibt keine Dateien zu dieser Ressource.
Zur Langanzeige
Mourouga, G., Baudrin, E., Courty, M., Schmidt, T. J., & Schumacher, J. (2021, April 20). Towards rigorous thermodynamics in aqueous flow batteries : measuring activity coefficients with differential scanning calorimetry. 17th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (MODVAL 17), Online, 20-22 April 2021.
Mourouga, G. et al. (2021) ‘Towards rigorous thermodynamics in aqueous flow batteries : measuring activity coefficients with differential scanning calorimetry’, in 17th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (MODVAL 17), online, 20-22 April 2021.
G. Mourouga, E. Baudrin, M. Courty, T. J. Schmidt, and J. Schumacher, “Towards rigorous thermodynamics in aqueous flow batteries : measuring activity coefficients with differential scanning calorimetry,” in 17th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (MODVAL 17), online, 20-22 April 2021, Apr. 2021.
MOUROUGA, Gaël, Emmanuel BAUDRIN, Mathieu COURTY, Thomas J. SCHMIDT und Jürgen SCHUMACHER, 2021. Towards rigorous thermodynamics in aqueous flow batteries : measuring activity coefficients with differential scanning calorimetry. In: 17th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (MODVAL 17), online, 20-22 April 2021. Conference presentation. 20 April 2021
Mourouga, Gaël, Emmanuel Baudrin, Mathieu Courty, Thomas J. Schmidt, and Jürgen Schumacher. 2021. “Towards Rigorous Thermodynamics in Aqueous Flow Batteries : Measuring Activity Coefficients with Differential Scanning Calorimetry.” Conference presentation. In 17th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (MODVAL 17), Online, 20-22 April 2021.
Mourouga, Gaël, et al. “Towards Rigorous Thermodynamics in Aqueous Flow Batteries : Measuring Activity Coefficients with Differential Scanning Calorimetry.” 17th Symposium on Modeling and Experimental Validation of Electrochemical Energy Technologies (MODVAL 17), Online, 20-22 April 2021, 2021.
Alle Ressourcen in diesem Repository sind urheberrechtlich geschützt, soweit nicht anderweitig angezeigt.