Spatial Distribution of Pressure Using Fluid Physics for the Vanadium Redox Flow Battery and Minimizing Fluid Crossover Between the Battery Electrodes

Our focus in this treatment is a relatively novel approach to minimizing the fluid transfer imbalance between the negative and positive electrodes of a vanadium redox flow battery (VRFB) through the membrane, and determination of the horizontal/lateral change in pressure across each electrode, as we...

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Bibliographic Details
Published in:Journal of the Electrochemical Society 2024-02, Vol.171 (2), p.20537
Main Author: Krowne, Clifford M.
Format: Article
Language:English
Subjects:
battery electrodes
battery membrane
Darcy's law
fluid transfer across the membrane
incompressible fluid conditions
pressure spatial distribution
vanadium redox flow battery
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Summary:Our focus in this treatment is a relatively novel approach to minimizing the fluid transfer imbalance between the negative and positive electrodes of a vanadium redox flow battery (VRFB) through the membrane, and determination of the horizontal/lateral change in pressure across each electrode, as well as the vertical pressure distributions. Underpinnings of the fluid transfer are the Darcy continuum equation. Here we develop analytical equations from the field equations affecting the fluid flow in the VRFB, which are very useful for controlling settings in battery stacks consisting of several cells.
ISSN:0013-4651
1945-7111
DOI:10.1149/1945-7111/ad2734