Aeg Energietechnik Gmbh

Norbert Berg

Bernd Kohlstruck

Gerhard Filip

Arnold Lamm

The invention relates to a fuel cell system ( ) comprising an anode chamber ( ) and a cathode chamber ( ) which are separated from each other by a proton conducting membrane ( ). When the fuel cell system is operated, fuel, in particular H or a water/methanol mixture, can be fed to the anode chamber and an oxidant, in particular oxygen, can be fed to the cathode chamber. In standby mode, the cathode chamber ( ) does not allow flow through and the oxidant and fuel are present in both the cathode chamber ( ) and the anode chamber ( ), respectively. The fuel cell system remains at operating temperature in the standby mode. This enables the fuel cell system ( ) to be used as a combined interruption-free power supply unit and backup unit.

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Darmstadt, Germany

Norbert Berg