Analysis of electrolysers, batteries and fuel cells

A key focus is the development and application of analytical methods to investigate the functioning and reversible and irreversible ageing of hydrogen PEM fuel cells for commercial vehicle applications, PEM and AEM water electrolysers for green hydrogen production, and lithium-ion battery cells. The group primarily uses and develops X-ray fluorescence microscopy, scanning electrochemical microscopy (SECM) and electrical impedance tomography (EIT) as imaging methods to visualise possible ageing processes in a spatially resolved manner and to elucidate relationships between material, operating conditions, activity and ageing. The degradation of electrochemical cells is investigated using application-specific accelerated ageing tests on a laboratory scale, and the components and process media are analysed in situ and ex situ using suitable electrochemical and elemental analytical methods.