Extended Data Fig. 5: Evaluation of oxidation stability of the electrolyte.
From: A rechargeable calcium–oxygen battery that operates at room temperature
a, Linear sweep voltammetry curves of our ionic liquid-based electrolyte on CNT electrode at a scan rate of 1.0 mV/s. Inset, the zoomed-in plot. b, The corresponding current derivative from a. c, Potentiostatic polarization of the Ca | |CNT cell, suggesting an oxidation voltage over 4.1 V for our ionic liquid-based electrolyte.
