https://www.miningreview.com/battery-metals/research-underway-to-...

https://www.miningreview.com/battery-metals/research-underway-to-cut-cost-boost-energy-density-of-vrfb/

"Dr. Skyllas-Kazacos suggests that one of the ways to reduce the amount of vanadium needed is by moving away from the conventional VRFB technology to a Vanadium-Oxygen Redox Fuel Cell (VOFC).

In a VOFC, the positive half-cell electrolyte is replaced with an oxygen gas diffusion electrode – which in turn halves the electrolyte volume and vanadium requirement. While considerable research and development is required before commercialisation, the VOFC offers potential energy densities of up to 100Wh/litre with half the vanadium requirements."

Less V per cell...yet by boosting cost efficiencies and energy density of the technology, this is likely to boost adoption and end up boosting demand for vanadium overall.