Basf Fuel Cell Gmbh

Werner Kraus

Jürgen Pawlik

Oemer Uensal

Joachim Kiefer

Stephen Derby

Jochen Baurmeister

Frauke Jordt

Raymond Puffer

Glen Hoppes

Glenn Saunders

Louise Courtois

The present invention relates to an acid-doped polymer membrane based on polyazoles. The acid-doped polymer membrane can be used in a variety of applications because of its excellent mechanical properties and is useful as polymer electrolyte membrane (PEM) in PEM fuel cells. A doped polymer membrane based on polyazoles is obtained by a process comprising the steps of: A) casting a film using a solution of polymers based on polyazoles in a polar, aprotic organic solvent; B) drying the film formed in step A) until it is self-supporting; C) treating the film obtained in step B) with a treatment liquid at a temperature in the range from room temperature to the boiling point of the treatment liquid; D) drying and/or dabbing the film treated according to step C) to remove the treatment liquid from step C); and E) doping the film treated according to step D) with a doping agent.

Polymer membrane, method for the production and use thereof

A method and apparatus for handling thin films, for example, for handling and assembling membranes in fuel cell electrodes. The apparatus includes a translatable vacuum table for mounting the thin film, a perforated drum having a source of vacuum for removing the thin film from the vacuum table, and a transfer assembly having a perforated surface and a source of vacuum for transferring the thin film from the perforated drum to a target location. When the thin films are provided in containers, the apparatus may also include means for opening the containers to access the thin film within. Removal of the thin film from the transfer assembly may be aided by a thin film release device, for example, a plurality of moveable wires. The apparatus may be automated, for example, the apparatus may included automated controllers and robotic arms to facilitate the handling of thin film materials.

Method and apparatus for transferring thin films from a source position to a target position

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Niedernhausen, Germany

Werner Kraus