Interest in the advancement of energy storage methods have risen as energy production trends toward renewable energy sources. Vanadium redox flow batteries (VRFB) are one of the emerging energy storage techniques being developed with the purpose of effectively storing renewable energy.
Vanadium redox flow batteries (VRFBs) can effectively solve the intermittent renewable energy issues and gradually become the most attractive candidate for large-scale stationary energy storage. However, their low energy density and high cost still bring challenges to the widespread use of VRFBs.
Vanadium-based RFBs (V-RFBs) are one of the upcoming energy storage technologies that are being considered for large-scale implementations because of their several advantages such as zero cross-contamination, scalability, flexibility, long life cycle, and non-toxic operating condition.
No transfer of vanadium ions across the membrane will ensure maximum coulombic efficiency and any crossover of vanadium/other species into the opposing cell will result in self discharge and reduced energy efficiency in the cell .
However, their low energy density and high cost still bring challenges to the widespread use of VRFBs. For this reason, performance improvement and cost reduction of VRFBs are the keys to their commercialization and large-scale energy storage applications.
Abstract: In the wake of increasing the share of renewable energy-based generation systems in the power mix and reducing the risk of global environmental harm caused by fossil-based generation systems, energy storage system application has become a crucial player to offset the intermittence and instability associated with renewable energy systems.