Fig. 1
From: Rechargeable aqueous zinc-manganese dioxide batteries with high energy and power densities
Zn-MnO2 battery chemistry. Schematic illustration of a the primary alkaline Zn-MnO2 battery using KOH electrolyte and b the rechargeable Zn-MnO2 cell using CF3SO3 −-based electrolyte. c Comparison of the cycling performance of Zn-MnO2 cells with electrolytes of 45wt.% KOH (at 0.32 C), 3 M ZnSO4, 3 M Zn(CF3SO3)2, and 3 M Zn(CF3SO3)2 with 0.1 M Mn(CF3SO3)2 additive at 0.65 C. nC equals the rate to charge/discharge the thereotical capacity (308 mAh g−1) of MnO2 in 1/n hours
