Joint Research Centre harmonizes EIS test procedures for water electrolysis cells

The Joint Research Centre (JRC) of the European Union has developed a standardized testing procedure for electrochemical impedance spectroscopy (EIS) in water electrolysis cells. A key aspect of this harmonization includes specifications for the modulation current, which can reach up to 5% of the electrolysis current.

As EIS is increasingly used to analyze electrolysis cells, the demands on measurement technology continue to grow. Currents of up to 1000 A are not uncommon in modern electrolysis processes, placing high requirements on the performance and precision of EIS modulators.

The new JRC standards establish a uniform basis for reliable and comparable measurements in hydrogen technology, contributing to the further advancement of electrolysis processes.