Performance enhancement of vanadium redox flow battery with novel streamlined design: Simulation and experimental validation

Document Type

Article

Source of Publication

Journal of Energy Storage

Publication Date

10-10-2024

Abstract

Electrolyte utilization and the consequent concentration polarization significantly limit the potential increase in power density and contribute to electrode degradation in vanadium redox flow batteries during cycling. This study investigates a novel curvature streamlined design, drawing inspiration from natural forms, aiming to enhance the performance of vanadium redox flow battery cells compared to conventional square and rectangular flow-through cell designs. The simulated 3D single-cell model shows a notably superior uniformity in both current and species' concentration distribution within the streamlined design compared to the square and rectangular shapes. Experimental analysis conducted on 3D-printed flow frames demonstrated 2 % enhanced energy efficiency and 47 % improved capacity when compared to rectangular design at 150 mA cm−2, all achieved with minimal increase in pressure drop.

ISSN

2352-152X

Publisher

Elsevier BV

Volume

99

Disciplines

Engineering

Keywords

3D-printing &, additive manufacturing, Electrodes overlapping, Flow field, Simulation &, modeling, Vanadium redox flow batteries

Scopus ID

85201489149

Indexed in Scopus

yes

Open Access

no

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