Samsung Sdi Co., Inc.

Kolon Industries, Inc.

Korea Atomic Energy Research Institute

Other

Hasuck Kim

Myoung-Ki Min

Hee-Tak Kim

Geun-Seok Chai

Kah-Young Song

Tae-Yoon Kim

Sang-Il Han

Sung-Yong Cho

Chan Kwak

Alexey Alexandrovichserov

Jun-Young Kim

Ho-Jin Kweon

Jin-Hwa Lee

Soon-Ki Kang

Sung-Chul Lee

Si-Hyun Lee

Hye-A Kim

Chan-hee Park

Yong-Bum Park

Ju-Yong Kim

Jin-Goo Ahn

Soon-Cheol Shin

Young-Mi Park

Leonid Gorobinskiy

Chan-Hee Park

Go-Ul Choi

Norboru Sato

Elena Alekseeva

Sang Il Han

Sang-Ii Han

A membrane-electrode assembly for a fuel cell is provided. The membrane-electrode assembly includes a cathode electrode and an anode electrode which are positioned oppositely to each other; and a polymer electrolyte membrane positioned between the cathode electrode and the anode electrode. The cathode electrode and the anode electrode each includes an electrode substrate; a micropore layer which is positioned on the electrode substrate; and a first catalyst layer positioned on the micropore layer, at least one of a second catalyst layer is positioned between the first catalyst layer and the polymer electrolyte membrane, and the second catalyst layer includes a reaction inducing material which is a metal or alloy.

Fuel cell membrane-electrode assembly

Disclosed are a support for a fuel cell, a method of preparing the same, an electrode containing the same, a membrane-electrode assembly containing the same, and a fuel cell system containing the same. The electrode includes an electrode substrate and a catalyst layer on the electrode substrate, wherein the catalyst layer includes a catalyst and a binder resin. The catalyst includes a support and an active metal supported on the support. The support includes a carbon substrate and a graphitic layer covering a surface of the carbon substrate. The carbon substrate may be a carbon nanotube, a carbon nanowire, or a heat-treated carbon black, and the graphitic layer includes graphene sheets stacked together and has mesopore channels therein aligned with the graphene sheets. The active metal is supported on the graphitic layer.

Support for fuel cell, method of preparing the same, and electrode for fuel cell, membrane-electrode assemby for a fuel cell and fuel cell system including same

A membrane-electrode assembly for a fuel cell, the membrane-electrode assembly including an electrolyte membrane; an edge protective layer located at generally an edge of the electrolyte membrane; and a catalytic layer including a plate portion contacting the electrolyte membrane and a protruding portion protruding from the plate portion and contacting the edge protective layer.

Membrane-electrode assembly with a protective layer, and fuel cell stack and fabricating method of membrane-electrode assembly

An electrode catalyst for a fuel cell, an electrode, a fuel cell, and a membrane electrode assembly (MEA), the electrode catalyst including a carbonaceous support, and a catalyst metal loaded on the carbonaceous support, wherein the carbonaceous support includes a functional group bound on a surface thereof, the functional group being represented by one of Formula 1 or Formula 2, below, 

Electrode catalyst for fuel cell, electrode for fuel cell including the electrode  catalyst, and membrane electrode assembly and fuel cell including the same

A catalyst layer composition for a fuel cell includes an ionomer cluster, a catalyst, and a solvent including water and polyhydric alcohol; and an electrode for a fuel cell includes a catalyst layer comprising an ionomer cluster having a three-dimensional reticular structure, and a catalyst, a method of preparing a electrode for a fuel cell includes a catalyst layer comprising an ionomer cluster having a three-dimensional reticular structure, and a catalyst, and a membrane-electrode assembly for a fuel cell including the electrode and a fuel cell system including the membrane-electrode assembly.

Catalyst layer composition for fuel cell, electrode for fuel cell, method of preparing electrode for fuel cell, membrane-electrode assembly for fuel cell, and fuel cell system using the membrane-electrode assembly

An electrode for a fuel cell is disclosed. The electrode may include an electrode substrate with a conductive substrate, carbon particles, and a catalyst layer disposed on the electrode substrate. The electrode substrate may include a pore having an average diameter of about 20 &#x3bc;m to about 40 &#x3bc;m and porosity of about 30 volume % to about 80 volume % based on the total volume of the electrode substrate. A membrane-electrode assembly including the electrode and a fuel cell system including the membrane electrode assembly are also disclosed.

Electrode for fuel cell, and membrane-electrode assembly and fuel cell system including same

A fuel cell separator and a fuel cell system including the same. The separator includes a main body including a plurality of cell barriers and a flow channel disposed between the cell barriers, and a hydrophilic surface-treatment layer disposed on the bottom surface of the flow channel of the main body. The hydrophilic surface-treatment layer disposed on the bottom surface of the flow channel has a contact angle less than a contact angle of a side surface of at least one of the cell barriers by approximately 10&#xb0; to approximately 60&#xb0;.

Separator for fuel cell, and fuel cell system including same

Disclosed are an electrode for a fuel cell, a method of preparing the fuel cell electrode, a membrane-electrode assembly including the fuel cell electrode, and a fuel cell system including the fuel cell electrode. The electrode includes an electrode substrate having a conductive substrate and a layer-by-layer assembled multi-layer disposed on a side of the conductive substrate and a bilayer including a polymer electrolyte or a conductive nanoparticle, and a catalyst layer disposed on the electrode substrate.

Electrode for fuel cell, method of preparing same, membrane-electrode assembly and fuel cell system including same

A membrane-electrode assembly (MEA) for a fuel cell includes a fuel cell electrolyte membrane, an anode disposed at a first side of the electrolyte membrane, and a cathode disposed at a second side of the electrolyte membrane, wherein the cathode has a thickness and an area, the cathode area extending in a plane substantially parallel to a major surface of the electrolyte membrane, the cathode area includes a central area and a peripheral area, the peripheral area extending to lateral edges of the cathode, the central area includes hydrophilic portions and hydrophobic portions, the peripheral area includes hydrophilic portions and hydrophobic portions, and the central area is more hydrophobic than the peripheral area.

Membrane-electrode assembly for fuel cell and fuel cell stack with the same

The catalyst for a fuel cell of the present invention includes a compound including at least one element selected from the group consisting of silicon, aluminum, and titanium, and a catalytic metal.

Catalyst for a fuel cell, a method of preparing the same, and a fuel cell system comprising the same

Disclosed are a supporter for a fuel cell, and an electrode for a fuel cell, a membrane-electrode assembly, and a fuel cell system including the same. The supporter includes a transition metal oxide coating layer formed on a surface of a carbonaceous material, the surface of the carbonaceous material covalently bonded with the transition metal oxide.

Supporter for fuel cell, and electrode for fuel cell, membrane-electrode assembly for a fuel cell, and fuel cell system including same

Disclosed are an electrode for a fuel cell that includes an electrode substrate and a surface-treatment layer disposed on the electrode substrate and including a hydrophilic layer and a hydrophobic layer partially disposed on the hydrophilic layer. Also disclosed are a method of fabricating an electrode for a fuel cell, a membrane-electrode assembly, and a fuel cell system including the membrane-electrode assembly.

Electrode for fuel cell, method of fabricating the same, and membrane-electrode assembly for fuel cell and fuel cell system including the same

The present invention includes a catalyst for a fuel cell which contains a transition element core, and a surface layer that contains at least one selected from the group including platinum, a platinum-transition element alloy, and a combination thereof, and that exists on the surface of the core. The catalyst being prepared without a surfactant.

Catalyst for fuel cell, method for preparing the same, and membrane-electrode assembly and fuel cell system comprising same

A fuel cell catalyst includes a platinum-iron (Pt&#x2014;Fe) alloy having an ordered or disordered face-centered cubic structure or face-centered tetragonal structure. The face-centered cubic structure has a lattice constant ranging from about 3.820 &#x212b; to about 3.899 &#x212b; (or from about 3.862 &#x212b; to about 3.880 &#x212b;), and the face-centered tetragonal structure has a first lattice constant ranging from about 3.800 &#x212b; to about 3.880 &#x212b; (or from about 3.810 &#x212b; to about 3.870 &#x212b;) and a second lattice constant ranging from about 3.700 &#x212b; to about 3.810 &#x212b; (or from about 3.710 &#x212b; to about 3.800 &#x212b;). A membrane-electrode assembly can improve cell performance by including the above catalyst having the relatively high activity and selectivity for an oxidant reduction in at least one of an anode or a cathode, and can increase lifespan by inhibiting catalyst poisoning.

Fuel cell catalyst, method of preparing same, and membrane-electrode assembly for fuel cell and fuel cell system including same

A membrane electrode assembly for a fuel cell that secures a flow path of a separator while preventing generation of a pin-hole. The membrane electrode assembly includes an electrolyte membrane for a fuel cell, a microporous layer that is disposed at both surfaces of the electrolyte membrane, a backing layer that is disposed on the microporous layer, and a circumferential edge protective layer that is disposed at an circumferential edge of the electrolyte membrane. An end portion of the microporous layer is positioned further inside of the membrane electrode assembly than an end portion of the backing layer. The circumferential edge protective layer is inserted between the backing layer and the electrolyte membrane.

Growing community of inventors

Yongin-si, South Korea

Myoung-Ki Min