Stability Tests on Anion Exchange Membrane Water Electrolyzer under On-Off Cycling with Continuous Solution Feeding

In this study, the stability of an anion exchange membrane water electrolyzer (AEMWE) cell was evaluated in on-off cycling operation with respect to applied electric bias, i.e., a current density 500 mA cm−2, and open circuit. The ohmic polarization resistances system were monitored during (~800 h) using electrochemical impedance spectra. Specific consideration given resistance cell, especially that under conditions, by consistently feeding KOH solution. Owing excess feed solution, momentary increase observed immediately after open-circuit. solution mostly recovered subjecting bias. Stability tests on AEMWE continuous even circuit can guarantee long-term avoiding irreversible resistances.