Chemistries^
| Couple | Max. cell voltage (V) | Average electrode power density (W/m2) | Average fluid energy density (W·h/kg) |
|---|---|---|---|
| Iron-tin | 0.62 | <200 | |
| Iron-titanium | 0.43 | <200 | |
| Iron-chrome | 1.07 | <200 | |
| Vanadium-vanadium (sulphate) | 1.4 | ~800 | 25 |
| Vanadium-vanadium (bromide) | 50 | ||
| Sodium/bromine polysulfide | 1.54 | ~800 | |
| Zinc-bromine | 1.85 | ~1,000 | 75 |
| Lead-acid (methanesulfonate) | 1.82 | ~1,000 | |
| Zinc-cerium (methanesulfonate) | 2.43 | <1,200–2,500 |
Read more about this topic: Flow Battery
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