A hydrocarbon-based ion exchange membrane is hydrated, then compressed with a mesh template to form an embedded pattern on its surface. After dehydration, the template is removed, yielding an electrolyte membrane featuring improved water uptake, ion conduc...

A solid polymer electrolyte membrane electrode assembly (cell) (10) comprising a fuel electrode membrane (12) disposed on one surface of a solid polymer electrolyte membrane (11), and an oxidant electrode membrane (13) disposed on the other surface of the ...