As an approach to high temperature operation of PEMFCs, acid-doped PBI membranes are under active development. The membrane exhibits high proton conductivity under low water contents at temperatures up to 200°C. Mechanisms of proton conduction for the membranes have been proposed. Based on the membranes fuel cell tests have been demonstrated. Operating features of the PBI cell include no humidification, high CO tolerance, better heat utilization and possible integration with fuel processing units. Issues for further development are also discussed.
|Title of host publication||Solid State Electrochemistry : Proceedings of the 26th Risoe International Symposium on Materials Science|
|Publication status||Published - 2005|
|Event||26th Risoe International Symposium on Materials Science - Risoe, Denmark|
Duration: 4 Sep 2005 → 8 Sep 2005
|Conference||26th Risoe International Symposium on Materials Science|
|Period||04/09/2005 → 08/09/2005|