Acid-doped PBI polymer electrolyte membranes have been developed and characterized for fuel cell applications at temperatures up to 200°C. Electric conductivity as high as 0.13 S/cm is obtained at 160°C at high doping levels. The water osmotic drag coefficient of the polymer electrolyte is found to be virtually zero, which allows a fuel cell to operate with no external humidification. At operational temperatures up to 200°C, a fuel cell based on this polymer membrane exhibits promising performance.
|Title of host publication||Proceedings of Workshop on Indirect and Direct Methanol Fuel Cells|
|Place of Publication||Portorose|
|Publication status||Published - 1999|
|Event||Workshop on Indirect and Direct Methanol Fuel Cells - Portoroz, Slovenia|
Duration: 12 Sep 1999 → 14 Sep 1999
|Workshop||Workshop on Indirect and Direct Methanol Fuel Cells|
|Period||12/09/1999 → 14/09/1999|