Under CopyrightGerteisen, DietmarDietmarGerteisen2022-03-074.12.20102010https://publica.fraunhofer.de/handle/publica/27860710.24406/publica-fhg-278607This thesis deals with the analysis of dominant loss mechanisms in direct methanol fuel cells (DMFC) and hydrogen fed polymer electrolyte membrane fuel cells (PEFC) by means of experimental characterization and modeling work.enPolymer electrolyte membrane fuel cellDMFCPEFCimpedance spectroscopyreference electrodemodellingcharacterizationwater managementmixed potentialcatalyst poisoninggas diffusion layerlaser perforationBrennstoffzellenforschungBrennstoffzellenentwicklung621697Investigation of dominant loss mechanisms in low-temperature polymer electrolyte membrane fuel cellsdoctoral thesis