Hyundai Motor Company

Kia Motors Corporation

Korea Advanced Institute of Science and Technology

Yonsei University

Snu Rdb Foundation

Soongsil University

Vinatech Co., Ltd.

Bum Wook Roh

In Chul Hwang

Ki Sub Lee

Yong Min Kim

Jin Seong Choi

Ha Yeong Yu

Seok Jung Park

Mi Hye Yi

Jae Seung Lee

Young Woo Lee

Han Sung Kim

Nak Hyun Kwon

Yoon Hwan Cho

Chang Ho Jung

Kyung Won Park

Jin Gyu Choi

Hyun Woo Lee

Kwang Min Oh

Su Hwan Cho

Seung Ho Yu

Yung Eun Sung

Yong Hun Cho

Ju Wan Lim

Joon Taik Park

In Sung Chang

Sang Beom Han

Hyung-Suk Oh

Sang Il Choi

Han Gi Jeong

Jin Su Hyun

Hee Man Choe

Nam Gee Jung

Ran 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

A nozzle device includes: a charging nozzle configured to supply a charging fluid and provided to be connected to a receptacle provided in a subject; a cover member to surround the charging nozzle and the receptacle; and a fluid supply unit to supply an interior of the cover member with an anti-freezing fluid for inhibiting freezing between the charging nozzle and the receptacle, thereby obtaining an advantageous effect of preventing freezing of the receptacle and improving safety and reliability. In addition, the nozzle device may include a hydrophobic coating layer for inhibiting freezing.

Fluid charging system, nozzle device, and receptacle device

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

A method for manufacturing a catalyst support includes: heat-treating a crystalline carbon support in a temperature range from 700&#xb0; C. to 1100&#xb0; C. under a vapor atmosphere to increase a specific surface area of the carbon support; and applying a magnetic field to the increased specific surface area of the carbon support to remove an impurity.

Method for manufacturing catalyst support, catalyst support manufactured thereby, and catalyst for fuel cell including the same

A method for manufacturing an alloy catalyst for a fuel cell is disclosed. The method for manufacturing an alloy catalyst for a fuel cell may include predetermined processes and reaction conditions, such that iridium is alloyed to platinum contained in a cathode carbon support catalyst. Accordingly, time for stabilizing charge on the carbon surface may be reduced and a metal particle size may be controlled, thereby manufacturing high quality products having uniform metal particle distribution and improved durability. In addition, corrosion of a cathode carbon support catalyst in a harsh condition such as vehicle driving may be prevented.

Method for manufacturing alloy catalyst for fuel cell

Titanium suboxide (TiO) nanoparticles useful as a support for a catalyst electrode of a fuel cell, and a method for synthesizing the titanium suboxide (TiO) nanoparticles by using TiO, a Co catalyst and hydrogen gas at a low temperature ranging from 600 to 900&#xb0; C. are described Since the titanium suboxide nanoparticles show high corrosion resistance to acid and durability and have excellent thermal and electric conductivities, a catalyst electrode manufactured by using the same as a support exhibits improved catalytic activity and oxidation reduction (redox) properties.

Titanium suboxide supports for catalyst electrode of fuel cell and low temperature synthesis of titanium suboxide

Techniques herein prepare an alloy catalyst using a protective conductive polymer coating. More particularly, an alloy catalyst is prepared by: preparing a platinum catalyst supported on carbon; coating the surface of the platinum catalyst with a conductive polymer; supporting a transition metal salt on the coated catalyst; and heat treating the catalyst on which the transition metal salt is supported. Also, an alloy catalyst may be prepared by: preparing a platinum-transition metal catalyst supported on carbon; coating the surface of the platinum-transition metal catalyst with a conductive polymer; and heat treating the coated catalyst. Accordingly an alloy catalyst with superior dispersity can be prepared by increasing the degree of alloying of the catalyst through heat treatment while preventing the increase of catalyst particle size through carbonization of the conductive polymer. The prepared catalyst may be useful, for example, for a fuel cell electrode.

Preparing an alloy catalyst using conductive polymer coating

The present invention provides an electrode for a polymer electrolyte membrane fuel cell. In one embodiment, a planar nanoporous or microporous metal foam or metal aerogel structure is provided, from which an electrode with a catalyst layer integrally formed by fixing a catalyst in the metal foam or metal aerogel is formed.

Fuel cell electrode

The present invention discloses a method for manufacturing a palladium-platinum core-shell catalyst for a fuel cell. More specifically, the present invention discloses a method for manufacturing a palladium-platinum core-shell catalyst for a fuel cell, in which a platinum shell nano particle epitaxially grown on a palladium core is synthesized and dipped in a carbon support, thereby manufacturing the palladium-platinum core-shell catalyst for a hydrogen fuel cell, such that mass production of a uniform size is possible. Additionally, the techniques herein reduce the requirement for the use of expensive metal, which reduces the manufacturing cost of a fuel cell. Moreover, is the techniques herein are applicable to the field of high-efficiency hydrogen fuel cells having superior electric catalytic activity and durability.

Method for manufacturing palladium-platinum core-shell catalysts for fuel cells

The present invention provides a support for an electrode of a polymer electrolyte membrane fuel cell, a fuel cell, and a platinum-supported catalyst, and an electrode using the same. In particular, the present invention provides a method in which linear crystalline carbon nanofibers and nonlinear crystalline carbon particles with increased surface area and improved crystallinity are used to enhance the active site of catalyst particles and ensure the durability of the catalyst by the crystalline carbon materials. The linear crystalline carbon nanofibers are grown to have a predetermined fiber diameter by heat treatment at a high temperature in a gas phase of hydrocarbon in an inert gas atmosphere using an oxide such as Ni, Fe, Mn, etc. as a catalyst. The crystallinity of the linear crystalline carbon nanofibers is also improved by the heat treatment. As the nonlinear crystalline carbon particles, commercially available acetylene black that has been heat-treated at a high temperature under steam to expand the surface area and improve the crystallinity, can be used to thereby provide high surface area and ensure excellent oxidation resistance.

Catalyst for fuel cell and method for preparing the same

Growing community of inventors

Gyeonggi-do, South Korea

Bum Wook Roh