Sgl Carbon Ag

Sgl Carbon Se

Futurecarbon Gmbh

Peter Wilde

Rüdiger-Bernd Schweiss

Stefan Forero

Heiko Leinfelder

Victor Trapp

Tim Schubert

Michael Maendle

Josef Steinhart

Melanie Haberkorn

Rüdiger Schweiss

A carbon-fiber-based gas diffusion layer (GDL) for use in polymer electrolyte membrane (PEM) fuel cells (FC) having structured hydrophilic properties, wherein materials with hydrophilic properties and selected from the group of metal oxides in an average domain size of 0.5 to 80 &#x3bc;m are present as hydrophilic wicks in the gas diffusion layer.

Gas diffusion layer

This invention relates to electrode substrates for electrochemical cells, particularly low-temperature fuel cells, and processes for their production. Low-cost carbon fiber paper structures are used as precursor for preparation of an all-carbon product that has a high electric conductivity and porosity and can be processed in a continuous reel-to-reel mode. These paper materials are further impregnated and processed to adjust the final product properties. This all-carbon electrode substrate is not brittle thereby avoiding the main disadvantage of the prior art.

Carbon fiber electrode substrate for electrochemical cells

This invention relates to electrode substrates for electrochemical cells, particularly low-temperature fuel cells, and processes for their production. Graphitized fiber web structures are used that have a preferred non-planar fiber alignment resulting in high through-plane conductivity. These structures are further impregnated and processed to adjust the final product properties.

Electrode substrate for electrochemical cells based on low-cost manufacturing processes

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Meitingen, Germany

Peter Wilde