Research Article
A Hybrid Na//K+-Containing Electrolyte//O2 Battery with High Rechargeability and Cycle Stability
Figure 5
Electrochemical performance of the NKO battery. (a) Discharge/charge profiles of the tenth cycle at varied current densities. (b) Discharge/charge profiles of the selected runs over 100 cycles at 500 mA g−1. (c) Cycling stability.