Audi Ag

Volkswagen Ag

Lasse Schmidt

Gerold Hübner

Sebastian Kirsch

Miriam Stiefel

Thomas Schladt

Hannes Scholz

Tanja Graf

Jonathan Edward Müller

Martin Göbel

Alexander Vollbrecht

Julian Ronnenberg

Jonathan Edward MÜLLER

A method for the production of an electrode for a fuel cell is provided that comprises providing a multitude of catalyst particles carried on at least one electrically conductive particle carrier, and depositing one or more atomic or molecular layers of an ionomer from the gas phase on the catalyst particles and/or the at least one particle carrier, thereby forming a proton-conducting ionomer coating. Furthermore, an electrode for a fuel cell is also provided.

Method for production of an electrode and the electrode for a fuel cell

A fuel cell system includes a fuel cell stack formed from a plurality of cell units, which have gas diffusion layers, wherein the gas diffusion layer of at least one of the edge cell units has a heat transfer mechanism of reduced efficiency in comparison with the gas diffusion layer of a cell unit from the middle of the fuel cell stack. A motor vehicle may include such a fuel cell system.

Fuel cell system having improved gas diffusion layers and motor vehicle having a fuel cell system

A method for reducing cell degradation in a fuel cell system includes adding oxygen-containing gas to a fuel in the anode chamber to prevent an increase in a cell voltage above a predetermined maximum value.

Reduction of cell degradation in fuel cell systems

A method for producing a noble metal-free catalyst comprises providing a catalyst support comprising organic heterocycles as catalyst, and applying an oxidation-inhibiting protective layer. Embodiments further relate to a noble metal-free catalyst, a fuel cell, and a motor vehicle.

Method for producing a noble metal-free catalyst, a noble metal-free catalyst, a fuel cell and a motor vehicle

A diagnostic system for determining the cathode gas quality of a fuel cell system has a fuel cell stack, with a diagnostic fuel cell which can be connected at the cathode side to a cathode supply line and at the anode side to an anode supply line of the fuel cell system. The diagnostic system furthermore comprises a detection unit which is configured to detect a measured value or the measured value time curve of the diagnostic fuel cell operating with the cathode gas provided via the cathode supply line and with the anode gas provided via the anode supply line. The present disclosure moreover relates to a fuel cell system having a diagnostic system, and to a corresponding method.

Diagnostic system, fuel cell system having a diagnostic system, and method for determining cathode gas contamination

The invention relates to a membrane electrode assembly () for a fuel cell (), comprising a membrane () on each side of which is disposed a catalytic layer (), and on this a gas diffusion layer (). It is provided that the gas diffusion layer () comprises a layer with electrically conductive particles (), and a portion of the particles () is arranged directly adjacent to the catalytic layer ().

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Wolfsburg, Germany

Lasse Schmidt