A vanadium redox-flow battery has been developed at UNSW.|
The battery consists of several cells connected in series.
|V(OH)4+ + 2H+ + e¯ VO2+ + 3H2O||Eo = 1.000 V
|V2+ V3+ + e¯
||Eo = −0.265 V
|V(OH)4+ + V2+ + 2H+ VO2+ + V3+ + 3H2O
||Ecell = 1.256 V
the cell potential is the electrode potential of the positive electrode
minus the electrode potential of the negative electrode.