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US 2006/0068268 A1Published application
Membrane and membrane electrode assembly with adhesion promotion layer
OwnerDavid Olmeijerinventor
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Abstract
This application relates to membrane electrode assemblies (MEA's) that contain an ion conducting adhesion promotion layer to promote structural stability at the interface of the PEM and catalyst layer within the MEA.
Claims40
A membrane electrode assembly (MEA) comprising:
- a. a polymer electrolyte membrane (PEM) comprising a first ion conducting polymer and having first and second surfaces;
- b. a first catalyst layer comprising a second ion conducting polymer and a catalyst, wherein said catalyst layer has a first surface, and
- c. an adhesion promotion layer in contact with said first surface of said PEM and said first surface of said catalyst, wherein said adhesion promotion layer comprises an ion conducting adhesive composition.
A method for making a membrane electrode assembly (MEA) comprising:
- a. providing a polymer electrolyte membrane (PEM) comprising a first ion conducting polymer and having first and second surfaces and a first catalyst layer having a first surface and comprising a second ion conducting polymer;
- b. applying an ion conducting adhesive composition on at least said first surface of said PEM or said first surface of said catalyst layer;
- and
- c. positioning said PEM and said catalyst layer in close proximity so as to form an adhesion promotion layer between said first surface of said PEM and said first surface of said catalyst layer to form an MEA.
1 more element
A composition comprising a PEM and an adhesion promotion layer comprising an ion conductive adhesive composition on at least one of the surfaces of said PEM.
Dependencies are inferred from the claim text.