OXYGEN PERMEABLE ELECTRODE SYSTEM

摘要

An electrochemical device ( 18 ) for generating a desired gas of the type includes an ionically conductive electrolyte layer ( 20 ), a porous electrode layer ( 22 ), and a current collector layer ( 16 ) that has a high electrical conductivity and is porous to a desired gas ( 24 ) generated by the electrochemical device ( 18 ). The current collector layer ( 16 ) is substantially formed as a film comprised of a layer of spherical refractory material objects ( 26 ) having a conductive coating ( 12 ) of a precious metal. The coated spherical objects ( 26 ) have a desired diameter ( 28 ) making them suitable for forming into the film.