Author/Authors :
Markِtter، نويسنده , , H. and Alink، نويسنده , , R. and Hauكmann، نويسنده , , J. and Dittmann، نويسنده , , K. and Arlt، نويسنده , , T. and Wieder، نويسنده , , F. and Tِtzke، نويسنده , , C. and Klages، نويسنده , , M. and Reiter، نويسنده , , C. and Riesemeier، نويسنده , , H. and Scholta، نويسنده , , J. and Gerteisen، نويسنده , , D. and Banhart، نويسنده , , J. and Manke، نويسنده , , I.، نويسنده ,
Abstract :
Perforated gas diffusion layers (GDLs) of polymer electrolyte membrane fuel cells (PEMFCs) were investigated by means of in-situ synchrotron X-ray radiography during operation. We found a strong influence of perforations on the water distribution and transport in the investigated Toray TGP-H-090 GDL. The water occurs mainly around the perforations, while the holes themselves show varying water distributions. Some remain dry, while most of them fill up with liquid water after a certain period or might serve as drainage volume for effective water transport.
Keywords :
water transport , Polymer electrolyte membrane fuel cell (PEMFC) , Radiography , Synchrotron , Perforated gas diffusion layer (GDL) , x-ray imaging
