The vanadium flow battery (VFB) as one kind of energy storage technique that has enormous impact on the stabilization and smooth output of renewable energy. Key materials like membranes, electrode, and electrolytes will finally determine the performance of VFBs.
Vanadium redox flow battery (VRFB) energy storage systems have the advantages of flexible location, ensured safety, long durability, independent power and capacity configuration, etc., which make them the promising contestants for power systems applications.
Patent No.: US 10,608,274 B2 ( 2020) Electrochim. Acta, 246 ( 2017), pp. 783 - 793 Compos. Struct., 109 ( 2014), pp. 253 - 259 N. Poli, C. Bonaldo, A. Trovò, M. Moretto, M. Guarnieri. Techno-economic Assessments of Vanadium Flow Batteries: Performance and Value Analysis. Applied Energy, (Under revision). J. Electrochem.
This is where vanadium-based compounds (V-compounds) with intriguing properties can fit in to fill the gap of the current battery technologies.
Chetan M. Pawar, Sooraj Sreenath, Bhavana Bhatt, Vidhiben Dave, Nayanthara P.S, Wasim F.G. Saleha, Govind Sethia, Rajaram K. Nagarale. Proton conducting zeolite composite membrane boosts the performance of vanadium redox flow battery.
Vanadates are another important vanadium-based electrode materials due to their high output voltage, stable skeleton and fast ion diffusion coefficient. However, most of these materials have low theoretical specific capacity, which limits their practical applications.