Abstract
The present invention relates to a method of operating a fuel cell system comprising one or more fuel cells with a proton exchange membrane, wherein the membrane is composed of a polymeric material comprising acid-doped polybenzimidazole (PBI). The method comprises adjusting the operating temperature of the fuel cell to between 120 and 250 degrees C, supplying an oxidant stream to the cathode, and supplying a humidified fuel stream to the anode, said fuel stream comprising dimethyl ether, wherein dimethyl ether is directly oxidised at the anode.
| Original language | English |
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| IPC | H01M8/04 |
| Patent number | WO2011035784 |
| Filing date | 31/03/2011 |
| Country/Territory | Denmark |
| Publication status | Published - 2011 |