초록 ▼

There is disclosed a composite membrane and an air electrode for use in hydrogen-oxygen fuel cells, metal-air cells and oxygen sensors. The composite membrane includes a porous membrane having micropores with a thin layer affixed thereto. The thin layer having metallic oxide in a carbon matrix, so t

There is disclosed a composite membrane and an air electrode for use in hydrogen-oxygen fuel cells, metal-air cells and oxygen sensors. The composite membrane includes a porous membrane having micropores with a thin layer affixed thereto. The thin layer having metallic oxide in a carbon matrix, so that oxygen gas is able to permeate therethrough, but water vapor in air is not allowed to permeate therethrough.

대표청구항 ▼

A composite membrane, said membrane comprising: a porous membrane having micropores; and a thin layer affixed to at least one surface of said porous membrane, said thin layer contains a metallic oxide in a carbon matrix; wherein said porous membrane and said thin layer cooperatively permit the passa

A composite membrane, said membrane comprising: a porous membrane having micropores; and a thin layer affixed to at least one surface of said porous membrane, said thin layer contains a metallic oxide in a carbon matrix; wherein said porous membrane and said thin layer cooperatively permit the passage of oxygen gas therethrough while substantially preventing the passage of water vapor therethrough, said metallic oxide being selected from among the group consisting of tin dioxide, zinc oxide, aluminum oxide, magnesium oxide, calcium oxide, strontium oxide, barium oxide, titanium dioxide, silicon dioxide, cuprous oxide, manganese monoxide, nickel oxide, tricobalt tetroxide, vanadium dioxide, molybdenum dioxide, tungsten dioxide, ruthenium dioxide, niobium dioxide, chromium dioxide, rhenium dioxide, osmium dioxide, rhodium dioxide, iridium dioxide and platinum dioxide.