Modeling of Zinc Bromine redox flow battery with application to channel design

Zhicheng Xu, Jun Wang, S. C. Yan, Qi Fan*, Peter D. Lund

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

Here we present a 2-D combined mass transfer and electrochemical model of a zinc bromine redox flow battery (ZBFB). The model is successfully validated against experimental data. The model also includes a 3-D flow channel submodel, which is used to analyze the effects of flow conditions on battery performance. A comprehensive analysis of the effects of flow is included. We find that the zinc deposition decreases with flow distance during charging, and the opposite for the zinc de-plating process during discharging. The simulations also show that multiple curved flow channels can slightly improve the voltage efficiency of the ZBFB while the coulombic and energy efficiencies are slightly reduced. The model can be used for improving ZBFB design.

Original languageEnglish
Article number227436
Number of pages9
JournalJournal of Power Sources
Volume450
DOIs
Publication statusPublished - 29 Feb 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • Efficiency
  • Electrochemical model
  • Flow channel
  • Zinc bromine redox flow battery
  • Zinc deposition

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