Ghana s new all-vanadium flow battery electrolyte pump

What is a Commercial electrolyte for vanadium flow batteries?

Commercial electrolyte for vanadium flow batteries is modified by dilution with sulfuric and phosphoric acid so that series of electrolytes with total vanadium, total sulfate, and phosphate concentrations in the range from 1.4 to 1.7 m, 3.8 to 4.7 m, and 0.05 to 0.1 m, respectively, are prepared.

What's the difference between a flow battery and a vanadium flow battery?

VRB Energy's proprietary electrolyte formula is engineered for low-cost manufacturing, optimal performance and long-life. While some flow batteries use two different chemicals for the positive and negative sides of the battery, vanadium flow batteries use the same electrolyte on both sides of the battery.

Are vanadium flow batteries safe?

While some flow batteries use two different chemicals for the positive and negative sides of the battery, vanadium flow batteries use the same electrolyte on both sides of the battery. This means the batteries are safe and reliable, and there is no harmful corrosion or degradation over time.

What is a commercial vanadium electrolyte?

Currently, commercial vanadium electrolytes are primarily H 2 SO 4 (2.5–3.5 mol/L) solutions dissolving 1.5–2 mol/L vanadium, with energy densities typically around 25 Wh/L, significantly lower than Zn mixed flow batteries, which can achieve energy densities up to 70 Wh/L [10, 20].