Physics-Based Electrochemical Model of Vanadium Redox Flow Battery
Vanadium redox flow batteries (VRFBs) operate effectively over the temperature range of 10 °C to 40 °C. However, their performance is significantly compromised at low
In this paper, we present a physics-based electrochemical model of a vanadium redox flow battery that allows temperature-related corrections to be incorporated at a fundamental level, thereby extending its prediction capability to low temperatures.
1. Increasing the ambient temperature around the vanadium redox flow battery (VRFB) has been shown to reduce the charging voltage and increase the discharging voltage, thereby enhancing the charge and discharge capacity. With the temperature increase, the Coulombic efficiency decreases, while the voltage efficiency improves.
Vanadium redox flow batteries (VRFBs) are one example of redox flow batteries that have reached the stage of commercial deployment for grid-scale application. Extensive research has been carried out on several variants of VRFB over the past few decades.
Particularly, the vanadium redox flow batteries (VRFBs), as shown in Fig. 1 (a), which use vanadium ions with different valence states as the anolyte and catholyte, can eliminate the cross-contamination, , , , , , .
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