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Operational Parameter Analysis and Performance Optimization of Zinc–Bromine Redox Flow Battery

Author

Listed:
  • Ye-Qi Zhang

    (Department of Mathematics and Physics, North China Electric Power University, Beijing 102206, China)

  • Guang-Xu Wang

    (Department of Mathematics and Physics, North China Electric Power University, Beijing 102206, China)

  • Ru-Yi Liu

    (Key Laboratory of Power Station Energy Transfer Conversion and System, Ministry of Education, North China Electric Power University, Beijing 102206, China
    School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China)

  • Tian-Hu Wang

    (Key Laboratory of Power Station Energy Transfer Conversion and System, Ministry of Education, North China Electric Power University, Beijing 102206, China
    School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China)

Abstract

Zinc–bromine redox flow battery (ZBFB) is one of the most promising candidates for large-scale energy storage due to its high energy density, low cost, and long cycle life. However, numerical simulation studies on ZBFB are limited. The effects of operational parameters on battery performance and battery design strategy remain unclear. Herein, a 2D transient model of ZBFB is developed to reveal the effects of electrolyte flow rate, electrode thickness, and electrode porosity on battery performance. The results show that higher positive electrolyte flow rates can improve battery performance; however, increasing electrode thickness or porosity causes a larger overpotential, thus deteriorating battery performance. On the basis of these findings, a genetic algorithm was performed to optimize the batter performance considering all the operational parameters. It is found that the battery energy efficiency can reach 79.42% at a current density of 20 mA cm − 2 . This work is helpful to understand the energy storage characteristics and high-performance design of ZBFB operating at various conditions.

Suggested Citation

  • Ye-Qi Zhang & Guang-Xu Wang & Ru-Yi Liu & Tian-Hu Wang, 2023. "Operational Parameter Analysis and Performance Optimization of Zinc–Bromine Redox Flow Battery," Energies, MDPI, vol. 16(7), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:7:p:3043-:d:1108495
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    References listed on IDEAS

    as
    1. Ye-Qi Zhang & Jiao Sun & Guang-Xu Wang & Tian-Hu Wang, 2022. "Advantage of a Thermoelectric Generator with Hybridization of Segmented Materials and Irregularly Variable Cross-Section Design," Energies, MDPI, vol. 15(8), pages 1-18, April.
    2. Xu, Zhicheng & Fan, Qi & Li, Yang & Wang, Jun & Lund, Peter D., 2020. "Review of zinc dendrite formation in zinc bromine redox flow battery," Renewable and Sustainable Energy Reviews, Elsevier, vol. 127(C).
    Full references (including those not matched with items on IDEAS)

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