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Research on Performance Optimization of Novel Sector-Shape All-Vanadium Flow Battery

Author

Listed:
  • Kai Sun

    (Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102208, China)

  • Mengyao Qi

    (Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102208, China)

  • Xinrong Guo

    (Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102208, China)

  • Weijia Wang

    (Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102208, China)

  • Yanqiang Kong

    (Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102208, China)

  • Lei Chen

    (Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102208, China)

  • Lijun Yang

    (Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102208, China)

  • Xiaoze Du

    (Key Laboratory of Power Station Energy Transfer Conversion and System of Ministry of Education, School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102208, China)

Abstract

The all-vanadium flow batteries have gained widespread use in the field of energy storage due to their long lifespan, high efficiency, and safety features. However, in order to further advance their application, it is crucial to uncover the internal energy and mass transfer mechanisms. Therefore, this paper aims to explore the performance optimization of all-vanadium flow batteries through numerical simulations. A mathematical and physical model, which couples electrochemical reactions and thermal mass transfer processes within a novel sector-shape all-vanadium flow battery, has been established. Subsequently, the impact of cell thickness and operating parameters on the distribution of various physical fields and performance parameters has been investigated. The results show that the potential and overpotential decrease as the electrode thickness increases, while the energy efficiency initially rises and then declines. As for operating parameters, higher electrolyte concentration demonstrates superior performance, while changes in electrolyte flow and current density have comprehensive effects on the battery. The cell performance can be adjusted based on the integrated mass transfer process and energy efficiency.

Suggested Citation

  • Kai Sun & Mengyao Qi & Xinrong Guo & Weijia Wang & Yanqiang Kong & Lei Chen & Lijun Yang & Xiaoze Du, 2023. "Research on Performance Optimization of Novel Sector-Shape All-Vanadium Flow Battery," Sustainability, MDPI, vol. 15(19), pages 1-23, October.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:19:p:14520-:d:1254422
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    References listed on IDEAS

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    1. Jienkulsawad, Prathak & Jirabovornwisut, Tossaporn & Chen, Yong-Song & Arpornwichanop, Amornchai, 2023. "Effect of battery material and operation on dynamic performance of a vanadium redox flow battery under electrolyte imbalance conditions," Energy, Elsevier, vol. 268(C).
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