Effect of battery material and operation on dynamic performance of a vanadium redox flow battery under electrolyte imbalance conditions

Jienkulsawad, Prathak; Jirabovornwisut, Tossaporn; Chen, Yong-Song; Arpornwichanop, Amornchai

doi:10.1016/j.energy.2023.126708

Cited by 14 publications

(11 citation statements)

References 33 publications

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“…In addition, the electrolyte flow rate also has an impact on mass transfer, which affects the performance of the battery. Jienkulsawad et al 65 discussed the influence of electrolyte flow rate on battery performance, and believed that better battery performance can be obtained by using a variable flow rate method that changes the flow rate with the state of charge (SOC). During constant flow rate electrolysis, the electrolyte flow rate increases, and the battery EE increases.…”

Section: Effect Of Mass Transfer On Electrolytementioning

confidence: 99%

Recent research on vanadium redox batteries: A review on electrolyte preparation, mass transfer, and charge transfer for electrolyte performance enhancement

Ye,

Zhang,

Zhou

et al. 2024

Energy Storage

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Vanadium electrolyte is one of the most critical materials for vanadium redox batteries (VRB). Reducing the cost of vanadium electrolyte and improving its performance are ongoing research priorities for VRB. Currently, the control of the cost of vanadium electrolyte mainly relies on the development of new processes and optimization of traditional processes. Improving the performance of electrolytes mainly involves two aspects: mass transfer and charge transfer, such as introducing additives, optimizing supporting electrolytes, and developing new electrode catalysts. This article reviews the progress in improving the performance of VRB in the past 10 years. It focuses on three main aspects: the preparation of electrolytes, the influence of mass transfer on battery performance, and the influence of charge transfer on battery performance. It also further discusses the impact of different factors on the improvement of VRB performance. Finally, it summarizes the challenges faced by VRB in performance improvement and commercial applications, and made suggestions for future research and development of VRB.

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Section: Effect Of Mass Transfer On Electrolytementioning

confidence: 99%

Recent research on vanadium redox batteries: A review on electrolyte preparation, mass transfer, and charge transfer for electrolyte performance enhancement

Ye,

Zhang,

Zhou

et al. 2024

Energy Storage

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“…The local mass transfer coefficient can be obtained based on the experimental correlation [25] k mt neg ¼ k mt pos ¼ 1.6 Â 10 À4 ṽ0. 4 , where v denotes the electrolyte velocities in porous electrodes.…”

Section: Reaction Kinetics and Stack Voltagementioning

confidence: 99%

“…These limitations require a rational and efficient thermal management system for the long-term use of VRFB within an appropriate temperature.Numerous recent experimental studies have been conducted to develop the VRFB system. Many concerned novel electrolyte, electrode, and membrane materials, [3][4][5][6] while others focused on more cost-effective and efficient battery configurations. [7,8] However, these experimental studies could be dispersive and repetitive in their search for appropriate alternatives to the current VRFB system, which would waste a great deal of resources within limited time and impede progress.…”

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confidence: 99%

A 2D Thermal Model of Stacked Vanadium Redox Flow Batteries for Efficient Thermal Management

Shao,

Zhang

2023

Energy Tech

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In an industrial‐scale vanadium redox flow battery system, cells are stacked to form a compact module that serves as the power system's most fundamental unit in its scale‐up. Considering the narrow temperature range restricted by the precipitation of vanadium ions in the electrolyte and the relatively strong current employed, heat generation and dissipation determine the stack's temperature, significantly affecting the performance. Using the mass, momentum, energy conservation, electrochemical kinetics in each cell, and circuit analysis in the manifolds and channels through which electrolyte flows and is distributed to each cell, a 2D thermal model is developed in this study to investigate the temperature distribution and variation within the cell stack. Benefit from the integrated simulation of a 2D model and analytical circuit in flow frames in the stack, the temperature distribution and hotspots within the stack during the dynamic charge–discharge cycles can be precisely determined. In the results, it is indicated that the global consideration of transport and electrochemical processes demonstrate a more systematic understanding of heat generation and transfer throughout the stack.

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“…This process is powered by the VRFB until the electrolytes in the two slots are fully discharged. [32][33][34][35] The electrode, as an indispensable component of VRFBs, provides the interface between the vanadium ion reaction sites. The surface properties of excellent electrode materials can enhance the overall reactivity and stability of the VRFB.…”

Section: Introductionmentioning

confidence: 99%

Recent advances and perspectives of practical modifications of vanadium redox flow battery electrodes

Li,

Chen,

Feng

et al. 2024

Green Chem.

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Effect of battery material and operation on dynamic performance of a vanadium redox flow battery under electrolyte imbalance conditions

Cited by 14 publications

References 33 publications

Recent research on vanadium redox batteries: A review on electrolyte preparation, mass transfer, and charge transfer for electrolyte performance enhancement

Recent research on vanadium redox batteries: A review on electrolyte preparation, mass transfer, and charge transfer for electrolyte performance enhancement

A 2D Thermal Model of Stacked Vanadium Redox Flow Batteries for Efficient Thermal Management

Recent advances and perspectives of practical modifications of vanadium redox flow battery electrodes

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