High-temperature solid oxide cells (SOxC) such as SOFCs and SOECs require temperatures of 800 to 1,000 °C for operation. However, this results in temperature gradients that promote degradation or damage the stack. Electrochemical impedance spectroscopy (EIS) offers an innovative solution here, which is presented in SIVONIC disclosure document DE102023109509A1: It precisely measures temperatures, temperature distribution and temperature differences without using physical temperature sensors.
SIVONIC's EIS meter enables real-time monitoring and control of temperature distribution in SOxC stacks. Direct integration into process control systems minimizes thermal stress, extends service life and increases efficiency.