HORIZON-JU-CLEANH2-2025-01-02: Improved lifetime and cost of high-temperature electrolysers by introducing innovative materials and components in stacks and BoP

Water/steam electrolysis, when coupled with renewables bears the potential of enabling the decarbonisation of hard-to-abate industrial sectors via the introduction of renewable hydrogen. Steam electrolysis technologies such as solid oxide electrolysers (SOELs) and proton conducting ceramic electrolysers (PCCEL) operate at high temperatures and therefore yield high efficiencies.The degradation mechanisms, from which high temperature electrolysers suffer, are mainly tied to the material in their stack such as the electrolyte, electrodes, interconnects and seals, depending on operation temperature, [...]