1. Fuel Cells - an Introduction Birgit Scheppat August 2010

6. Flowfield Layer of catalyser How a Fuel cell works

9. Current density / mA/cm²

29. Polybenzimmidazol membran filled with phosphor acid

30. High temperatur PEM FC

31. Company Confidential 31 Vacuum-dry Membrane (10mbar, 110 o C and 120 o C) The stand-alone membranes were vacuum dried at 110 o C and 120 o C, respectively; The PA conc. of the membrane were measured at 10mins, 20mins, 30mins, 60mins, 2hrs and 3hrs. PA Conc. of the membrane increased to over 100% after 10mins when heating at both 110 o C and 120 o C, suggesting that the previous data from Ru may have issues. Pemeas