Effect of electrolyte circulation rate in flow-through mode on the performance of vanadium redox flow battery

Maruthi Prasanna, M.; Jayanti, Sreenivas

doi:10.1016/j.jpowsour.2023.233536

Cited by 3 publications

(1 citation statement)

References 22 publications

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“…Prasanna et al 18 successfully enhanced battery performance by manipulating the electrolyte circulation rate in the VRFB flow mode, leading to a reduction in voltage drop and an improvement in electrochemical efficiency. Bahman et al 19 proposed a multi-objective control system for electrolyte flow rate in order to mitigate voltage loss and capacity degradation in VRFB. The study conducted by Ertan et al 20 revealed a decrease in the capacity loss of VRFB as the charge current density increases, indicating that an asymmetric current density configuration can effectively mitigate this capacity loss.…”

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confidence: 99%

Effect of Operating Conditions on the Capacity of Vanadium Redox Flow Batteries

Ma,

Huang,

et al. 2024

J. Electrochem. Soc.

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Vanadium redox flow batteries (VRFBs) present a viable solution to address the intermittent power output challenge associated with wind and solar energy generation. However, their development is impeded by their low energy density and high cost. To achieve the objective of cost reduction, it is crucial to optimize operating conditions, minimize capacity loss, and enhance battery performance. Through meticulous experimental analysis, this study thoroughly examines the impact of membrane thickness, current density, flow rate, and self-discharge on battery capacity. The experimental findings reveal that an increase in membrane thickness results in elevated resistance to proton transport, thereby weakening electrochemical reactions. Moreover, surpassing critical values for current density and flow rate also leads to a decrease in capacity. Prolonged shelving induces severe self-discharge reactions that accelerate deterioration of capacity fade. This research suggests that obtaining optimal operational parameters can effectively mitigate battery capacity fade.

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confidence: 99%