摘要:
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.
摘要:
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.
摘要:
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° 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.
摘要:
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°.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.