Asahi Glass Company, Limited

Panasonic Corporation

Agc Inc.

Hitachi, Ltd.

Gm Global Technolgoy Operations, Inc.

Matsushita Electric Industrial Co., Ltd.

Yourbusiness Co., Ltd.

Shinji Kinoshita

Hiroshi Shimoda

Hirokazu Wakabayashi

Seigo Kotera

Toshihiro Tanuma

Atsushi Mukoyama

Makoto Uchida

Satoru Hommura

Tetsuji Shimohira

Yoshihiro Hori

Hideki Nakagawa

Kazuhito Hatoh

Akihiko Yoshida

Teruhisa Kanbara

Hisaaki Gyoten

Junji Niikura

Chunxin Ji

Yasuo Takebe

Susumu Saito

Hideyuki Nakamura

Hubert Gasteiger

Masato Hosaka

Ichiro Terada

Susan Yan

Shinji Terazono

Bhaskar Sompalli

Takumi Okuyama

Mikiko Yoshimura

Shuhei Tanaka

Kohta Yamada

Kimiyasu Yoshimura

Sota Kimura

Atsuo Okawara

Takashi Miyanaga

Mitsuo Iwasaki

Hiromitsu Nagarekawa

Tadamasa Kaneyasu

Seiichi Hiruta

Yoshihiro c/o Matsushita Electric Industrial Co Ltd Intellectual Property Rights Hori

Yoshihiro c/o Matsushita Electric Industrial Hori

Akihiko c/o Matsushita Electric Industria Yoshida

Makoto c/o Matsushita Electric Industrial Uchida

Mikiko c/o Matsushita Electric Industri Yoshimura

A rail vehicle includes a roof structure, a side structure, a gable end structure, and an underframe. The underframe is configured from a hollow shaped member that includes a first upper side face plate arranged at a central portion in a widthwise direction of the underframe, a first lower side face plate arranged at the central portion, a second upper side face plate arranged at an end portion and positioned below the first upper side face plate, a second lower side face plate arranged at the end portion and positioned below the first lower side face plate, a third upper side face plate that connects the first upper side face plate and the second upper side face plate to each other, and a third lower side face plate that connects the first lower side face plate and the second lower side face plate to each other.

Rail vehicle

To provide a polymer electrolyte fuel cell having a high cell voltage. A polymer electrolyte fuel cellcomprising

Polymer electrolyte fuel cell

To provide a liquid composition capable of forming a catalyst layer that is excellent in resistance to hydrogen peroxide and peroxide radicals, can further increase the output voltage of a membrane/electrode assembly, and can maintain a high output voltage for a long period of time; a method for its production; and a membrane electrode assembly for a polymer electrolyte fuel cell using said liquid composition. Provided is a liquid composition to be used for forming a catalyst layer constituting an electrode of a membrane electrode assembly for a polymer electrolyte fuel cell, wherein the liquid composition comprises a liquid medium, a fluoropolymer (H) having sulfonic acid groups and ring structures, and trivalent or tetravalent cerium ions, and the content of the trivalent or tetravalent cerium ions is from 1.6 to 23.3 mol % to the sulfonic acid groups (100 mol %).

Liquid composition, method for its production, and method for producing membrane/electrode assembly for polymer electrolyte fuel cell

To provide a membrane/electrode assembly for polymer electrolyte fuel cells, which is capable of providing high power generation performance even under a low humidity condition and has sufficient mechanical strength and dimensional stability, and which has an excellent durability even in an environment where moistening and drying are repeated, and a polymer electrolyte fuel cell which is capable of providing high power generation performance even under a low humidity condition. A membrane/electrode assemblyis used, which comprises a cathodehaving a catalyst layer, an anodehaving a catalyst layer, and a polymer electrolyte membraneinterposed between the catalyst layerof the cathodeand the catalyst layerof the anode, wherein at least one of the cathodeand the anodefurther has a reinforcing layercomprising a porous sheet-form reinforcing material made of a polymer, and an electrically conductive fiber.

Membrane/electrode assembly for polymer electrolyte fuel cells and polymer electrolyte fuel cell

A process is provided whereby a membrane/electrode assembly for polymer electrolyte fuel cells whereby a high output voltage is obtainable within a wide range of current densities. A process for producing a membrane/electrode assemblycomprising a first electrodehaving a first catalyst layerand a first gas diffusion layer, a second electrodehaving a second catalyst layerand a second gas diffusion layer, and an electrolyte membrane, wherein the first gas diffusion layer, a first intermediate having the first catalyst layerformed on the surface of the electrolyte membraneby coating followed by annealing, and a second intermediate having the second catalyst layerformed on the surface of the second gas diffusion layerby coating, are bonded, so that the first catalyst layeris located between the first gas diffusion layerand the electrolyte membrane, and the second catalyst layeris located between the second gas diffusion layerand the electrolyte membrane

Process for producing membrane/ electrode assembly for polymer electrolyte fuel cells

A press working die assembly includes a pad secured to an upper die holder so as to be movable upward and downward, a machining slide cam slidable laterally along a cam surface and having a bending edge at one end thereof, a rotatable rotary cam having a bending portion for forming a negative angle portion of a workpiece, and a reciprocating driving apparatus configured to rotate the rotary cam to a workpiece machining position. The reciprocating driving apparatus includes a slide block having a cam surface for rotating the rotary cam in a predetermined direction on an front end side and a rotation impelling surface configured to rotate the rotary cam back to its original position, and a restoring action block configured to come into abutment with the rotation impelling surface of the slide block when the slide block retracts to restore the rotary cam to its original position.

Press working die assembly

A polymer electrolyte membrane comprises at least one layer of a perforated sheet having many through-holes formed substantially parallel to the thickness direction with an average cross-sectional area per hole ranging from 1&#xd7;10to 20 mm, wherein the numerical aperture based on the through-holes ranges from 30 to 80%, and the through-holes are filled with an ion exchange resin.

Polymer electrolyte membrane, membrane-electrode assembly for polymer electrolyte fuel cells and process for producing polymer electrolyte membrane

A process comprising: providing a substrate with a catalyst layer thereon; depositing a first ionomer overcoat layer over the catalyst layer, the first ionomer overcoat layer comprising an ionomer and a first solvent; drying the first ionomer overcoat layer to provide a first electrode ionomer overcoat layer; depositing a second ionomer overcoat layer over the first electrode ionomer overcoat layer, and wherein the second ionomer overcoat layer comprises an ionomer and a second solvent.

Method of making fuel cell components including a catalyst layer and a plurality of ionomer overcoat layers

Provided is an electrolyte membrane containing: a reinforced inner layer; and an unreinforced outer layer on one or each side of the reinforced inner layer, wherein the reinforced inner layer includes an inner ion exchange resin reinforced with a non-woven fabric composed of a melt moldable fluororesin in the form of a continuous fiber, wherein a number of intersecting points of the continuous fiber are fused and/or bonded, and wherein the unreinforced outer layer includes an outer ion exchange resin, which may be the same as or different from the inner ion exchange resin. Also provided is a membrane electrode assembly for a polymer electrolyte fuel cell, wherein the membrane electrode assembly contains the above-mentioned polymer electrolyte membrane.

Electrolyte membrane, process for its production and membrane-electrode assembly for polymer electrolyte fuel cells

In the production of a membrane/electrode assembly, a first catalyst layer(a second catalyst layer) is formed by a process comprising steps (a) and (b). (a) A step of applying a coating fluid comprising a catalyst and an ion-exchange resin, on a substrate to form a coating fluid layer. (b) A step of disposing a reinforcing layer() on the coating fluid layer formed in the step (a) and then, drying the coating fluid layer to form a first catalyst layer(a second catalyst layer) The process provides a catalyst layer whereby defects such as cracks are scarcely formed in the catalyst layer, and the bond strength is high at the interface between the catalyst layer and a reinforcing layer and at the interface between the catalyst layer and a polymer electrolyte membrane.

Process for forming catalyst layer, and process for producing membrane/electrode assembly for polymer electrolyte fuel cell

To provide a membrane/electrode assembly for polymer electrolyte fuel cells, a polymer electrolyte fuel cell and processes for their production, which make it possible to stably exhibit a high power generation performance in various environments. A membrane/electrode assembly for polymer electrolyte fuel cells, which comprises a first electrode having a first catalyst layer and a first gas diffusion layer, a second electrode having a second catalyst layer and a second gas diffusion layer, and a polymer electrolyte membrane disposed between the first electrode and the second electrode, wherein the 90&#xb0; peel strength at least one of the interface between the first electrode and the polymer electrolyte membrane and the interface between the second electrode and the polymer electrolyte membrane is at least 0.03 N/cm.

Membrane/electrode assembly with multilayered cathode catalyst for polymer electrolyte fuel cells

To provide a polymer electrolyte membrane having excellent size stability and excellent mechanical strength that can sufficiently prevent the size change due to the swelling condition, the displacement of the polymer electrolyte membrane and the formation of wrinkles during the production of the polymer electrolyte fuel cell, and can prevent damage during the production and operation of the polymer electrolyte fuel cell. In a composite electrolyte membrane including a porous reinforcement layer made of a resin and an electrolyte layer made of a polymer electrolyte and laminated at least one main surface of the reinforcement layer, the direction having a high tensile modulus of elasticity in the reinforcement layer is substantially corresponded with the direction having a high rate of size change in the electrolyte layer.

Composite electrolyte membrane, catalyst-coated membrane assembly, membrane-electrode assembly and polymer electrolyte fuel cell

Provided is an electrolyte membrane and a process of producing the same, wherein the electrolyte membrane predominantly comprises an unreinforced outer layer on one or each side of a reinforced inner layer, wherein the reinforced inner layer comprises an inner ion exchange resin reinforced with a non-woven fabric comprising a melt moldable fluororesin in the form of a continuous fiber, wherein some intersecting points of the continuous fiber are fused or bonded, and wherein the unreinforced outer layer comprises an outer ion exchange resin, which may be the same as or different from the inner ion exchange resin. The electrolyte membrane has high strength, excellent dimensional stability and low electric resistance and is therefore useful as a polymer electrolyte membrane for a membrane electrode assembly for a polymer electrolyte fuel cell having high output and excellent durability.

The present invention provides a membrane-electrode assembly for polymer electrolyte fuel cells and a polymer electrolyte fuel cell having excellent dimensional stability and mechanical strength, and having high durability at the time of a power generation. Each of polymer electrolyte membranes () have a regionhaving proton conductivity over the entirety in the thickness direction of the membrane and a regionlocated at the outer peripheral portion of the regionand having a non-porous sheet disposed so that the regionhas no proton conductivity over the entirety in the thickness direction of the membrane, and outer edges of the catalyst layers () are disposed so as to be located in the area

Membrane-electrode assembly for polymer electrolyte fuel cells, and polymer electrolyte fuel cell

A process for producing a membrane-electrode assembly for solid polymer electrolyte fuel cells, including providing a die having an inlet for introducing coating liquids, a linear exit for discharging the coating liquids, and at least one guide partition wall for partitioning the inlet into compartments extending to the linear exit and slanted relative to the direction in which a substrate facing the linear exit moves relatively to the die, introducing the coating liquids from the inlet, and passing the coating liquids through the compartments separately, and moving at least one of the die and substrate so that the substrate relatively moves at substantially right angles to the longitudinal direction of the linear exit of coat the substrate with the coating liquids and form catalyst layers.

Process for producing a membrane-electrode assembly for solid polymer electrolyte fuel cells

Growing community of inventors

Yokohama, Japan

Shinji Kinoshita