Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-29877
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dc.contributor.authorWlodarczyk, Jakub Karol-
dc.contributor.authorSchärer, Roman Pascal-
dc.contributor.authorFriedrich, Andreas-
dc.contributor.authorSchumacher, Jürgen-
dc.date.accessioned2024-02-09T15:28:15Z-
dc.date.available2024-02-09T15:28:15Z-
dc.date.issued2024-
dc.identifier.issn1945-7111de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/29877-
dc.description.abstractPorous electrodes (PEs) are an important component of modern energy storage devices, such as lithium-ion batteries, flow batteries, or fuel cells. Their complicated multiphase structure presents a considerable challenge to modelling and simulation. In this paper, we apply the volume-averaging method (VAM) as an efficient approach for the evaluation of effective macroscopic transport parameters in PEs. We consider the transport of electro-active species coupled to heterogeneous Butler-Volmer type reactions at the electrode surface. We identify the characteristic scales and dimensionless groups for the application to aqueous flow batteries. We validate the VAM-based model with direct numerical simulation results and literature data showing excellent agreement. Subsequently, we characterise several simplified periodic PE structures in 2D and 3D in terms of hydraulic permeability, effective dispersion, and the effective kinetic number. We apply the up-scaled transport parameters to a simple macroscopic porous electrode to compare the overall efficiency of different pore-scale structures and material porosity values over a wide range of energy dissipation values. This study also reveals that the Bruggeman correction, commonly used in macroscopic porous electrode models, becomes inaccurate for realistic kinetic numbers in flow battery applications and should be used with care.de_CH
dc.language.isoende_CH
dc.publisherIOP Publishingde_CH
dc.relation.ispartofJournal of the Electrochemical Societyde_CH
dc.rightshttps://creativecommons.org/licenses/by/4.0/de_CH
dc.subjectPorous electrodede_CH
dc.subjectMathematical up-scalingde_CH
dc.subjectVolume-averagingde_CH
dc.subjectTransport phenomenade_CH
dc.subjectRedox flow batteryde_CH
dc.subject.ddc621.3: Elektro-, Kommunikations-, Steuerungs- und Regelungstechnikde_CH
dc.titleUpscaling of reactive mass transport through porous electrodes in aqueous flow batteriesde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Computational Physics (ICP)de_CH
dc.identifier.doi10.1149/1945-7111/ad258ede_CH
dc.identifier.doi10.21256/zhaw-29877-
zhaw.funding.euinfo:eu-repo/grantAgreement/EC/H2020/765289// European Training Network to improve materials for high-performance, low-cost next- generation redox-flow batteries/FlowCampde_CH
zhaw.issue020544de_CH
zhaw.originated.zhawYesde_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume171de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.funding.zhawRedox Flow Battery Campusde_CH
zhaw.author.additionalNode_CH
zhaw.display.portraitYesde_CH
Appears in collections:Publikationen School of Engineering

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Wlodarczyk, J. K., Schärer, R. P., Friedrich, A., & Schumacher, J. (2024). Upscaling of reactive mass transport through porous electrodes in aqueous flow batteries. Journal of the Electrochemical Society, 171(020544). https://doi.org/10.1149/1945-7111/ad258e
Wlodarczyk, J.K. et al. (2024) ‘Upscaling of reactive mass transport through porous electrodes in aqueous flow batteries’, Journal of the Electrochemical Society, 171(020544). Available at: https://doi.org/10.1149/1945-7111/ad258e.
J. K. Wlodarczyk, R. P. Schärer, A. Friedrich, and J. Schumacher, “Upscaling of reactive mass transport through porous electrodes in aqueous flow batteries,” Journal of the Electrochemical Society, vol. 171, no. 020544, 2024, doi: 10.1149/1945-7111/ad258e.
WLODARCZYK, Jakub Karol, Roman Pascal SCHÄRER, Andreas FRIEDRICH und Jürgen SCHUMACHER, 2024. Upscaling of reactive mass transport through porous electrodes in aqueous flow batteries. Journal of the Electrochemical Society. 2024. Bd. 171, Nr. 020544. DOI 10.1149/1945-7111/ad258e
Wlodarczyk, Jakub Karol, Roman Pascal Schärer, Andreas Friedrich, and Jürgen Schumacher. 2024. “Upscaling of Reactive Mass Transport through Porous Electrodes in Aqueous Flow Batteries.” Journal of the Electrochemical Society 171 (020544). https://doi.org/10.1149/1945-7111/ad258e.
Wlodarczyk, Jakub Karol, et al. “Upscaling of Reactive Mass Transport through Porous Electrodes in Aqueous Flow Batteries.” Journal of the Electrochemical Society, vol. 171, no. 020544, 2024, https://doi.org/10.1149/1945-7111/ad258e.


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