Hyundai Motor Company

Kia Corporation

Kia Motors Corporation

Industry-academic Cooperation Foundation Gyeongsang National University

Il Seok Chae

Bo Ki Hong

Jong Kil Oh

Ki Hyun Kim

Jae Jun Ko

Jong Jin Yoon

Soon Ki Kwon

Mi Jeong Kim

Han Sol Ko

Disclosed are an electrolyte membrane of a membrane-electrode assembly comprising a plasma-treated filler and a manufacturing method thereof. The electrolyte membrane includes an ionomer having a membrane form and a filler dispersed in the ionomer and having a hydrophobic surface.

Electrolyte membrane of membrane-electrode assembly comprising plasma-treated filler and manufacturing method thereof

The present disclosure to an electrolyte membrane containing a polyfluorene-based ionomer, and more particularly, to an electrolyte membrane containing a polyfluorene-based ionomer which has a fluorene main chain composed of only a carbon-carbon bond and a side chain composed of a perfluorosulfonic acid group. The electrolyte membrane containing the polyfluorene-based ionomer has high proton conductivity, excellent chemical durability, excellent mechanical property, and excellent volume stability.

Electrolyte membrane including polyfluorene-based ionomer and manufacturing method thereof

Disclosed is an electrolyte membrane for a membrane-electrode assembly including a block copolymer composed of a hydrophilic domain and a hydrophobic domain.

Electrolyte membrane for membrane-electrode assembly including self-assembled block copolymer

Disclosed is an electrolyte membrane for a membrane-electrode assembly, which may include a filler that is a polymer compound (oligomer) having a low molecular weight. The electrolyte membrane may suitably include an oligomeric poly(vinylpyrrolidone) compound including a sulfonic acid group. The electrolyte membrane for a membrane-electrode assembly may have improved proton conductivity.

Electrolyte membrane for membrane-electrode assembly comprising filler improving ion conductivity

Disclosed is a method of producing an antioxidant that has excellent antioxidant ability and is well dispersed when applied to a membrane-electrode assembly (MEA). The method includes a step of preparing a powder including reduced metal oxide and a step of mixing the powder with a powdery ionomer to obtain an antioxidant in which the ionomer is bound to the surface of the reduced metal oxide.

Method of producing antioxidant with improved antioxidant ability and dispersion property for membrane-electrode assembly

Disclosed are an antioxidant for a fuel cell having a high degree of dispersion and/or distribution and excellent antioxidant capability and a membrane-electrode assembly including the same. The antioxidant includes a metal oxide and a sulfur-containing organic compound, for example, an organic compound including a sulfinic acid anion group (R&#x2014;SO), adsorbed on the metal oxide.

Growing community of inventors

Seoul, South Korea

Il Seok Chae