Hyundai Motor Company

Kia Motors Corporation

Industry-university Cooperation Foundation Hanyang University

Industry-university Cooperation Foundation Sogang University

Hanwha Chemical Corporation

Young Taek Kim

Nak Hyun Kwon

Inchul Hwang

Dong Il Kim

Jang-Bae Son

Hee Woo Rhee

So Young Lee

Jong Hyun Lee

Min Sung Kim

In Chul Hwang

Young Moo Lee

Hwan Soo Shin

Ji Hoon Yang

Su Won Seol

Yoon Hwan Cho

Dae Yong Son

Min Kyu Song

Ki Yun Cho

Dong Won Shin

Youngsu Jiong

Byungchul Jang

Min-Ho Seo

Li Jin Ghil

Dong Hwan Ryu

Jung-Eun Yang

Na Rae Kang

A method for manufacturing a fuel cell electrode includes forming a first mixture by mixing a first cation exchange resin, a metal catalyst, and a first solvent, powderizing the first mixture to produce a first catalyst powder comprising the metal catalyst coated with the first cation exchange resin, forming a second mixture by mixing the first catalyst powder, a second cation exchange resin, and a second solvent, powderizing the second mixture to produce a catalyst powder having a core and two or more layers of shells and being coated with the second cation exchange resin, mixing the catalyst powder having the core and two or more layers of shells with a third solvent to produce a catalyst slurry, and coating, using the catalyst slurry, to produce an electrode.

Methods for manufacturing fuel cell electrodes and electrodes formed using the same

The present invention provides sulfonated poly(phenylene sulfide sulfone nitrile) and a polymer electrolyte membrane thereof. In particular, the present invention provides sulfonated poly(phenylene sulfide sulfone nitrile) having a triple bond at its both ends and a polymer electrolyte membrane with superior mechanical properties prepared by heating sulfonated poly(phenylene sulfide sulfone nitrile) and forming cross-links between ends of sulfonated poly(phenylene sulfide sulfone nitrile).

Sulfonated poly(phenylene sulfide sulfone nitrile) and membrane for fuel cell thereof

The present invention relates to a poly(arylene ether) copolymer having a cation exchange group, a method for manufacturing the same, and use thereof. The poly(arylene ether) copolymer having the cation exchange group according to the present invention has excellent physical characteristics, ion exchanging capacity, metal ion adsorption capacity and a processability, and thus can be molded in various shapes and can be extensively applied to various fields such as recovering of organic metal, air purification, catalysts, water treatment, medical fields and separating of proteins.

Poly(arylene ether) copolymer having cation-exchange group, process of manufacturing the same, and use thereof

Disclosed herein is a polyarylene-based polymer, a preparation method for the same, and a polymer electrolyte membrane for fuel cell using the polymer. The polyarylene-based polymer, which is designed to have long side chains of a hydrophilic moiety and dense sulfonic acid groups, may improve the formation of ion channels when fabricating a polymer membrane and also ensures good chemical stability of the hydrophilic moiety and good dimensional stability against water. Further, the preparation method of the present invention simplifies production of the polymer, and polymer electrolyte membranes using the polymer exhibits improved properties as a polymer electrolyte membrane for a fuel cell, such as high proton conductivity, even under an atmosphere of low water uptake, and good dimensional stability against a long-term exposure to water.

Polyarlene-based polymer, preparation method for the same, and polymer electrolyte membrane for fuel cell using the polymer

Disclosed herein is a proton-conducting polymer and uses thereof and, more particularly, a hydrocarbon-based proton-conducting polymer derived from a monomer having a multi-naphthyl group and comprising a plurality of acid groups on the side chain of the repeating unit, an electrolyte membrane comprising the polymer, a membrane-electrode assembly comprising the electrolyte membrane, and a fuel cell comprising the membrane-electrode assembly.

Proton-conducting polymer and uses thereof

The present invention discloses a process for preparing catalyst solution for a membrane-electrode assembly in a fuel cell, which comprises the steps of a) mixing a catalyst solution (Solution A) wherein catalyst particles are dispersed in water and an ion conductive resin solution (Solution B) wherein an ion conductive resin is dissolved in water, low boiling point organic solvent or a mixture thereof, to form a dispersion; b) mixing the dispersion obtained from step a) with functional additive dissolved in high boiling point solvent or a mixture of low boiling point solvent arid water (Solution C) to prepare catalyst ink dispersion; and c) aging the catalyst ink dispersion obtained from step b).

Process for preparing of a catalyst solution for fuel cell and a membrane electrode assembly using the same

The present invention relates to a polymer blend electrolyte membrane comprising an inorganic polymer having polydimethylsiloxane as a main chain, which has a pore structure at both ends formed by condensation reaction between 3-aminopropyltriethoxysilane and tetraethylorthosilicate, wherein phosphoric acid is chemically linked to an amino group of the pore structure; and a proton-conducting polymer having a cation exchange group at the side chain thereof, as well as a manufacturing method thereof. Generally, proton-conducting electrolyte membranes have significantly reduced ion conductivity at high temperatures. However, proton-conducting electrolyte membranes have advantages in terms of efficiency and cost, and thus it is needed to develop an electrolyte membrane, which has excellent ion conductivity even at high temperature. Accordingly, the present invention aims to provide a polymer blend electrolyte membrane for use at high temperature and a manufacturing method thereof.

Polymer blend electrolyte membrane for use at high temperature and manufacturing method thereof

The present invention relates to a poly(arylene ether) copolymer having an ion exchange group, particularly a positive ion exchange group, a method for manufacturing the same, and use thereof. In the poly(arylene ether) copolymer having the ion exchange group according to the present invention, physical characteristics, ion exchanging ability, metal ion adsorption ability and a processability are excellent, and thus the copolymer can be molded in various shapes and can be extensively applied to various fields such as recovering of organic metal, air purification, catalysts, water treatment, medical fields and separating of proteins.

The present invention relates to a composite electrolyte membrane for fuel cells that has high proton conductivity and low fuel permeability even under low humidity conditions and at elevated temperatures. The membrane, comprising a cation exchange resin and acid-treated dendrimers, has great utility in large and medium fuel cells for applications in household appliances, electric vehicles, etc.

Composite electrolyte membrane with nanoscopic dendrimers and method of preparing same

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Seoul, South Korea

Young Taek Kim