Basf Fuel Cell Gmbh

Pemeas Gmbh

Delphi Technologies Holding S.arl

Other

Celanese Ventures Gmbh

Zahoransky Ag

Basf Fuel Cell Research Gmbh

Joachim Kiefer

Oemer Uensal

Gordon Calundann

Michael J Sansone

Jochen Baurmeister

Brian C Benicewicz

Frauke Jordt

Eui W Choe

Christoph Padberg

Mathias Weber

Isabel Kundler

James V Crivello

Thomas Soczka-Guth

Jürgen Pawlik

Rita H Joiner

Joachim Vendulet

Glen Hoppes

Jean-Pierre Winandy

Thomas Schmidt

Melanie Schlegel

Werner Kraus

Ursula Leister

Edmund Thiemer

Kilian Brehl

Shahid Jamil

Joachim Petersen

Sebastian Morlock

Eui Won Choe

Christoph Dl Padberg

The present invention relates to a method for the conditioning of membrane electrode assemblies for fuel cells in which the output of the membrane electrode assemblies used can be increased and therefore the efficiency of the resulting polymer electrolyte membrane fuel cells can be improved.

Method for conditioning membrane-electrode-units for fuel cells

The present invention relates to a novel proton-conducting polymer membrane based on polyazoles which can, because of its excellent chemical and thermal properties, be used in a variety of ways and is particularly useful as polymer electrolyte membrane (PEM) to produce membrane electrode units for PEM fuel cells.

Proton-conducting membrane and the use of the same

A method for enshrouding an actuator for use in a fuel injector, comprising the steps of providing an actuator having a body section, a first end piece and a second end piece; providing a shroud having first and second ends; applying a sealant material to at least one portion of an exterior surface of the end pieces, and/or to at least one part of the shroud; and enshrouding the actuator with the shroud, such that the sealant material provides an intermediate layer between the end pieces and the shroud and forms a fluid-tight seal between them.

Method for enshrouding an actuator

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

The present invention relates to a proton-conducting polymer membrane which comprises polyazole blends and is obtainable by a process comprising the steps

Proton-conducting polymer membrane comprising polyazole blends and its use in fuel cells

The present invention relates to a novel proton-conducting polymer membrane based on aromatic polyazoles which contain sulfonic acid groups and in which the sulfonic acid groups are covalently bound to the aromatic ring of the polymer and which can, owing to their excellent chemical and thermal properties, be used for a variety of purposes. Such materials are particularly useful for the production of polymer electrolyte membranes (PEMs) in PEM fuel cells.

Proton-conducting membrane and the use thereof

A piezoelectric actuator () comprising a stack of one or more piezoelectric elements () defining an external surface, and passivation means () applied to the external surface of the stack, wherein the passivation means () includes a self-supporting polyimide material () (e.g. in the form of a layer, film or membrane).

Piezoelectric actuator

The present invention relates to a proton-conducting polymer membrane comprising polyazoles which is obtainable by a process comprising the steps

Process for producing proton-conducting polymer membranes, improved polymer membranes and the use thereof in fuel cells

The present invention concerns a proton-conducting electrolyte membrane obtainable by a method comprising the following steps: An inventive membrane, thanks to its exceptional chemical and thermal properties, is very versatile in its use and is particularly suitable as a polymer-electrolyte-membrane (PEM) in so-called PEM fuel cells.

Proton conducting electrolyte membrane for use in high temperatures and the use thereof in fuel cells

The present invention relates to a proton-conducting electrolyte membrane obtainable by a process comprising the steps: A membrane according to the invention is very versatile on account of its excellent chemical and thermal properties and may be used, in particular, as a polymer electrolyte membrane (PEM) in what are known as PEM fuel cells.

Proton conducting electrolyte membrane having reduced methanol permeability and the use thereof in fuel cells

The present invention relates to an asymmetric polymer film, in particular based on polazoles, a method for the production of the same and its use. The polyazole-based asymmetric polymer film according to the invention has a smooth and a rough side and enables, on account of its asymmetric structure, rapid and homogeneous doping with acids to form a proton-conducting membrane. The polyazole-based asymmetric polymer film according to the invention can be used in diverse ways on account of its excellent chemical, thermal and mechanical properties and is particularly suitable for the production of polymer electrolyte membranes (PEM) for so-called PEM fuel cells.

Asymmetric polymer film, method for the production and utilization thereof

The present invention relates to a novel polymer film and also polymer fibers and polymers based on polyazoles, which can, owing to its excellent chemical and thermal properties, be used for a variety of purposes and is particularly useful as film or membrane for gas purification and filtration.

Polymer film based on polyazoles, and uses thereof

A proton-conducting polymer membrane comprising polyazoles containing sulfonic acid groups is obtainable by a process comprising:

Proton-conducting polymer membrane comprising sulfonic acid-containing polyazoles, and use thereof in fuel cells

A proton-conducting polymer membrane comprising polyazoles containing phosphonic acid groups is obtainable by a process comprising:

Growing community of inventors

Losheim am See, Germany

Joachim Kiefer