Hyundai Motor Company

Kia Motors Corporation

Ha Yeong Yu

Yong Min Kim

Ju Young Lee

Ki Sub Lee

Bum Wook Roh

Seok Jung Park

Min Kyung Kim

Ju Ahn Park

Byoung Su Kim

Jung Ik Kim

Jin Yi Choi

A membrane electrode assembly includes an electrolyte membrane stacked between different electrodes, wherein an ionomer layer of the electrolyte membrane comprises an adjacent electrode, a first layer having at least a same cross-sectional area as that of the adjacent electrode, a reinforcing layer and a second layer stacked at a side of the first layer, the second layer having at least the same cross-sectional area as that of the reinforcing layer.

Membrane electrode assembly for fuel cells

Disclosed are an electrolyte membrane of a membrane-electrode assembly including an electronic insulation layer, which greatly improves the durability of the electrolyte membrane, and a method of preparing the same. The electrolyte membrane includes an ion exchange layer and an electronic insulation layer provided on the ion exchange layer, and the electronic insulation layer includes one or more catalyst complexes, and a second ionomer Particularly, each of the one or more catalyst complex includes a catalyst particle and a first ionomer coated on the entirety or a portion of the surface of the catalyst particle, and the one or more catalyst complexes are dispersed the second ionomer.

Electrolyte membrane of membrane-electrode assembly including electronic insulation layer and preparation method thereof

Disclosed are an apparatus for manufacturing an electrolyte membrane and a method for manufacturing an electrolyte membrane using the same, which may prevent discoloration of the electrolyte membrane through a controlled drying process of the electrolyte membrane. The electrolyte membrane manufactured by the method of the present invention may not be discolored and performance and durability of fuel cells using the electrolyte membrane may be improved due to uniform drying of the electrolyte membrane during the manufacturing. For example, competitively simultaneous evaporation of solvents in an ionomer composition in the drying process may be prevented.

Apparatus for manufacturing electrolyte membrane and methods for manufacturing electrolyte membrane using the same

Membrane electrode assembly for fuel cells and method of manufacturing the membrane electrode assembly for fuel cells

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Seoul, South Korea

Ha Yeong Yu