Hyundai Motor Company

Kia Motors Corporation

Kia Corporation

Korea Advanced Institute of Science and Technology

Korea Institute of Science and Technology

Chonnam National University

E.i. Dupont De Nemours and Company

Industry-academic Cooperation Foundation Gyeongsang National University

Industrial Cooperation Foundation Chonbuk National University

Donga Manufacturing Corp.

Bo Ki Hong

Jae Jun Ko

Jong Kil Oh

Kook Il Han

In Yu Park

Sae Hoon Kim

Sukhwan Yun

Byeong-Heon Jeong

Jung Han Yu

Myoung Woon Moon

Kwang Ryeol Lee

Sang Yeoul Ahn

Ji Yeon Park

Byeong Heon Jeong

Aniket Kumar

Sun Ju Song

Jae Woon Hong

Byoungsu Kim

Sanwi Kim

Taek-Soo Kim

Il Seok Chae

Jongkil Oh

Byung Ki Ahn

Tae Won Lim

Se Joon Im

Jae-Han Kim

Inyu Park

So Young Lee

Ho Jin Lee

Ki Hyun Kim

Ju Hyun Kim

Hyun Yoo Kim

Gun Hyung Park

Sang Hyun Cho

Hyeon Seok Ban

Kyu Hwan Oh

Ji Hoon Yang

Keun Bong Ham

Taek Soo Kim

Keun Je Lee

Eun Kyu Her

Soon Ki Kwon

Hyun Joo Lee

Song I Oh

Han Sol Ko

Mi Jeong Kim

Chae Won Lim

Seung Kyung Ko

Stephen Bowers

Changwoon Nah

Yong Hwan Yoo

InYu Park

Yoon Gue Choi

Hyoung Juhn Kim

Chi Woo Roh

Kyung-Rim Jang

Disclosed are a polymer electrolyte membrane for fuel cells which has improved handling properties and mechanical strength by employing symmetric-type laminated composite films and a method for manufacturing the same.

Polymer electrolyte membrane for fuel cells and method for manufacturing the same

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 are a method for manufacturing a polymer electrolyte membrane for fuel cells in which a plurality of porous reinforcement films and ionomer layers are continuously disposed or stacked, and a polymer electrolyte membrane for fuel cells manufactured thereby. The polymer electrolyte membrane for fuel cells includes the porous reinforcement films, thus having excellent mechanical stiffness and improved physical durability. Further, the polymer electrolyte membrane for fuel cells includes an ionomer layer including a catalyst for decomposing peroxide configured to block gas crossover and may thus minimize performance degradation due to gas crossover and prevent an electrical short, and the polymer electrolyte membrane for fuel cells makes it easy to adjust the position of the ionomer layer in the electrolyte membrane in the thickness direction and may thus effectively mitigate gas crossover.

Method for manufacturing polymer electrolyte membrane for fuel cells and polymer electrolyte membrane for fuel cells manufactured thereby

Disclosed are an antioxidant for fuel cells, a membrane electrode assembly including the same and a method for preparing the antioxidant. The antioxidant for fuel cells includes a core including at least one selected from the group consisting of a metal oxide (MO) and a complex metal oxide (MNO, N and M being different metals), and an outer portion (e.g., a shell) located on or over a surface of the core and formed by performing reduction treatment of the surface of the core using a thiourea-based compound. The outer portion includes metal cations (M, n being a natural number of 1 or more) having a smaller oxidation number than a valency of the metal (M) of the core.

Antioxidant for fuel cells, membrane electrode assembly including the same and method for preparing antioxidant

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 are an electrolyte membrane with improved ion conductivity and enhanced water transport and a method for manufacturing the same. The electrolyte membrane includes an ion transport layer including an ionomer having proton conductivity and a catalyst dispersed in the ion transport layer, and the catalyst includes a support including a shell configured to have a designated shape and size and to be hollow and at least one hole configured to allow an inner space to communicate with an outside therethrough, and a metal supported on the support.

Electrolyte membrane with improved ion conductivity and method for manufacturing the same

Disclosed is an electrolyte membrane for fuel cells including a catalytic composite including a catalytic particle coated with an oxygen-permeable material and a method of producing the same. The electrolyte membrane for fuel cells includes an ion transport layer including an ionomer having proton conductivity and a catalytic composite dispersed in the ion transport layer, and the catalytic composite includes a catalytic particle including a catalytic metal component having activity of decomposing hydrogen peroxide and a coating layer formed on at least a part of a surface of the catalytic particle and including an oxygen-permeable material.

Electrolyte membrane for fuel cells containing catalyst composite having improved oxygen permeability and method of producing the same

The present disclosure relates to an electrolyte membrane for fuel cells including a hydrogen peroxide generating catalyst and a hydrogen peroxide decomposing catalyst, the electrolyte membrane exhibiting highly improved durability, and a method of manufacturing the same. Specifically, the electrolyte membrane includes a support and a catalyst particle including a catalyst metal supported by the support, the catalyst metal including one selected from the group consisting of a first metal having catalyst activity to generate hydrogen peroxide, a second metal having catalyst activity to decompose hydrogen peroxide, and a combination thereof.

Electrolyte membrane for fuel cells including hydrogen peroxide generating catalyst and hydrogen peroxide decomposing catalyst, and method of manufacturing the same

Disclosed is a catalyst complex for a fuel cell. The catalyst complex includes a support including carbon (C), platinum (Pt) supported on the support, and an iridium (Ir) compound supported on the support, and the iridium compound includes at least one of iridium oxide represented by Chemical Formula 1, IrO, and iridium-transition-metal oxide represented by Chemical Formula 2, IrMO, wherein M is a transition metal selected from the group consisting of Fe, Co, Cu, Ni and combinations thereof, and x is from 1 to 2.

Catalyst complex for fuel cell and method of manufacturing same

A water electrolysis system includes a water electrolytic stack, a water reservoir connected to the water electrolytic stack to supply water to the water electrolytic stack, a water circulation pump supplying the water in the water reservoir to the electrolytic stack; and a control unit configured to, during an operation stoppage of the electrolysis system, control the driving of the water circulation pump to convert the water in the electrolytic stack from an acidic condition to a neutral condition and to regulate a unit cell voltage of the electrolytic stack to a voltage such that an electrolysis reaction does not occur and a chemical state of an anode catalyst is stably maintained.

Water electrolysis system

Disclosed are an antioxidant which increases chemical durability of a polymer electrolyte membrane fuel cell (PEMFC) and a method for manufacturing the same. The antioxidant may prevent chemical degradation of the fuel cell and have improved antioxidation capability through a reduction reaction annealing process.

Antioxidant for fuel cells and fuel cell comprising the same

Disclosed is a method of manufacturing an electrolyte membrane for fuel cells. The method includes preparing an electrolyte layer including one or more ion conductive polymers that form a proton movement channel, and permeating a gas from a first surface of the electrolyte layer to a second surface of the electrolyte layer.

Method for manufacturing electrolyte membrane for fuel cells and electrolyte membrane manufactured by the same

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.

Antioxidant having high antioxidant capability for fuel cell, and electrolyte membrane and membrane-electrode assembly comprising same

A fuel cell system capable of improving the chemical durability of a membrane electrode assembly by compensating for the amount of an antioxidant lost within the electrolyte membrane or electrode of the fuel cell stack in such a manner that the antioxidant is provided from an antioxidant supply device, provided in a fuel processing system and/or an air processing system, to a fuel cell stack, in preparation for a case where the antioxidant within the electrolyte membrane or electrode is lost due to the dissolution or migration characteristic of the antioxidant.

Fuel cell system

Disclosed are a polymer electrolyte membrane for a fuel cell, a membrane-electrode assembly including the same, a fuel cell and a method of manufacturing the polymer electrolyte membrane for a fuel cell. Particularly, the polymer electrolyte membrane for a fuel cell may include ionomer layers including a voltage reversal tolerance-increasing additive including a water electrolysis catalyst and an electrical conductor and provided on a porous reinforced film.

Polymer electrolyte membrane for fuel cell and method of manufacturing same

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Seoul, South Korea

Bo Ki Hong