Gm Global Technolgoy Operations, Inc.

Sean Mackinnon

Timothy J Fuller

Frank D Coms

Michael K Budinski

Michael R Schoeneweiss

Roland J Koestner

Jeanette E Owejan

Kelly O'Leary

A filtration device for a fuel cell system is provided. The filtration device includes a filter adapted to receive a reactant for a fuel cell. The filter includes a molecular sieve material adapted to separate a contaminant from the reactant supplied to the fuel cell. A membrane electrode assembly having the filter integrally formed therewith, and a fuel cell stack having the filter disposed adjacent at least one of the end plates of the fuel cell stack, are also provided.

In situ fuel cell contamination sampling device

An ion conducting membrane for fuel cell applications includes an ion conducting polymer and a tin-containing compound at least partially dispersed within the ion conducting polymer. The ion conducting membranes exhibit improved performance over membranes not incorporating such tin-containing compounds.

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An ink composition for forming a fuel cell electrode includes a catalyst composition, a polymeric binder, a polymeric dispersant, and a solvent. The polymeric dispersant includes a perfluorocyclobutyl-containing polymer.

Polymer dispersant addition to fuel cell electrode inks for improved manufacturability

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Fairport, NY, United States of America

Sean Mackinnon