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. 2019 Dec 31;12:14. doi: 10.1007/s40820-019-0351-4

Fig. 4.

Fig. 4

Electrochemical performances of Zn/Mn2O3 batteries. a Cyclic voltammetry curve of MMO-3.2 at 0.1 mV s−1. b Galvanostatic charge–discharge curve of MMO-3.2. c Rate capability and d cycling performance of Mn2O3 electrodes with different surface areas in hybrid electrolyte (2 M ZnSO4 + 0.2 M MnSO4). e Long-term cycling stability of MMO-3.2 at 3080 mA g−1