Test Module 12: Operation Under Constant Current

Kurzfassung

This test module deals with solid oxide cell (SOC) operation under constant current either as a fuel cell (SOFC) or as an electrolyser (SOEC). The aim is to establish a widely accepted method for performing a long-term steady-state endurance test. A calculation method of the SOC degradation rate is also recommended from the continuously recorded SOC voltages as a function of time. Together with data obtained from other test modules (TM03 “Current-voltage characteristics” and TM04 “Electrochemical impedance spectroscopy”) performed before and after the long-term steady-state operation, a comprehensive representation of the degradation behaviour of SOC can be achieved.