The Cadmium Electrode Revisited: Kinetic Data

Abstract

The kinetics of a cadmium electrode in contact with a cadmium-ion containing electrolyte solution have been studied with impedance and potentiodynamic polarization measurements. Results of both methods agree, they are found to be within the range of previously reported data.

Unlocking the potential of cadmium plating chemistry for low-polarization, long-cycling, and ultrahigh-efficiency aqueous metal batteries

“…Secondly, Cd features an immense overpotential toward hydrogen evolution (Fig. 1b), [29][30][31][54][55][56] which kinetically inhibits HER side reactions. Note that the CdCl 2 electrolyte is mildly acidic (pH B 4.9), which renders a thermodynamic HER potential of À0.059 Â 4.9 = À0.289 V vs. SHE.…”