Gm Global Technolgoy Operations, Inc.

Wayne State University

Feng Zhong

Richard H Blunk

Mahmoud H Abd Elhamid

Timothy J Fuller

Youssef Morcos Mikhail

Daniel John Lisi

Brian K Brady

Gerald W Fly

Gayatri Vyas

Michael K Budinski

Keith E Newman

Darren R Dunphy

Gayatri Vyas Dadheech

Tao Xie

Kevin W Kirby

Gregory William Auner

Tina T Salguero

Chantelle Hughes

Gina Shreve

Hao Ying

Bipolar plates useful for fuel cell applications include a plate body having a channel-defining surface that is at least partially coated with a hydrophilic layer. This hydrophilic layer comprises residues of a silane-coupling agent in a sufficient amount such portions of the first hydrophilic layer have a contact angle less than a predetermined value.

Hydrolytically-stable hydrophilic coatings for PEMFC bipolar plate

In at least one embodiment, the present invention provides a hydrophilic electrically conductive fluid distribution plate and a method of making, and system for using, the hydrophilic electrically conductive fluid distribution plate. In at least one embodiment, the plate comprises a plate body defining a set of fluid flow channels configured to distribute flow of a fluid across at least one side of the plate, and a composite conductive coating having a water contact angle of less than 40&#xb0; adhered to the plate body. In at least one embodiment, the composite coating comprises a polymeric conductive layer adhered to the plate body having an exterior surface, and a particulate carbon layer adhered to the exterior surface of the polymeric conductive layer.

Hydrophilic, electrically conductive fluid distribution plate for fuel cell

In at least one embodiment, the present invention provides an electrically conductive fluid distribution plate and a method of making, and system for using, the electrically conductive fluid distribution plate. In at least one embodiment, the plate comprises a plate body defining a set of fluid flow channels configured to distribute flow of a fluid across at least one side of the plate, and a polymeric porous conductive layer proximate the plate body, with the porous conductive layer having a porosity sufficient to result in a water contact angle of the surface of less than 40&#xb0;.

Porous, electrically conductive fluid distribution plate for fuel cells

An electrically conductive plate for fuel cell applications comprises a plate body having at least one channel-defining surface and an electrically conductive hydrophilic layer disposed over at least a portion of the channel-defining surface. The electrically conductive layer includes residues of a silane coupling agent and electrically conductive hydrophilic carbon.

Conductive and hydrophilic coating for PEMFC bipolar plate

In at least one embodiment, the present invention provides an electrically conductive fluid distribution plate and a method of making, and system for using, the electrically conductive fluid distribution plate. In at least one embodiment, the plate comprises an electrically conductive fluid distribution plate comprising a metallic plate body defining a set of fluid flow channels configured to distribute flow of a fluid across at least one side of the plate, a metal-containing adhesion promoting layer having a thickness less than 100 nm disposed on the plate body, and a composite polymeric conductive layer disposed on the metal-containing adhesion promoting layer.

Metal fluid distribution plate with an adhesion promoting layer and polymeric layer

The present invention provides an electrically conductive element for an electrochemical cell element having enhanced protection for an underlying metal substrate with a surface susceptible to forming metal oxides. One or more regions of the surface are coated with a metal coating overlaid with an adhesion promoting coating comprising a silicon containing material derived from organosilanes. The adhesion promoting coating is overlaid with a conductive, protective polymeric coating. The present invention further provides methods of making such an electrochemical cell element to have improved adhesion of conductive, protective polymer coatings.

Adhesion of polymeric coatings to bipolar plate surfaces using silane coupling agents

A metal composite for use in electrochemical devices is disclosed. The metal composite comprises a stainless steel interior component and a deposited nitrided metal exterior layer, wherein the nitrided exterior layer has lower electric contact resistance and greater corrosion resistance than the stainless steel interior component. A bipolar plate made of such metal composite and methods of producing the metal composite and bipolar plate are also disclosed.

Corrosion resistant metal composite for electrochemical devices and methods of producing the same

An acoustic wave sensor to detect an analyte, the sensor comprising a piezoelectric material including a wide bandgap semiconductor material grown using plasma source molecular beam epitaxy.

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Windsor, CA, United States of America

Feng Zhong