Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Panasonic Intellectual Property Management Co., Ltd.

Asahi Glass Company, Limited

Other

Mitsui Chemicals, Inc.

Kyoto University

Matushita Electric Industrial Co., Ltd.

Yoichiro Tsuji

Shinsuke Takeguchi

Masaki Yamauchi

Takashi Nakagawa

Makoto Uchida

Yasuharu Yamamura

Tsutomu Iwaki

Kazuhito Hatoh

Hiroki Kusakabe

Eiichi Yasumoto

Yasushi Sugawara

Yoshihiro Hori

Takashi Morimoto

Yoshinori Toyoguchi

Osamu Yamamoto

Aoi Muta

Hidenobu Wakita

Yasuo Takebe

Shinya Kosako

Toshihiro Matsumoto

Akihiko Yoshida

Teruhisa Kanbara

Masataka Ozeki

Atsuo Okaichi

Yoshio Moriwaki

Junji Morita

Akinari Nakamura

Yoshiyuki Muraoka

Tomohiro Kuroha

Soichi Shibata

Hiroshi Ishikawa

Kunihiro Ukai

Yukihiro Okada

Hiromu Matsuda

Hisaaki Gyoten

Akinori Yukimasa

Osamu Sakai

Keiichi Yamamoto

Masaharu Miyahisa

Akihito Yoshida

Takeou Okanishi

Hajime Seri

Miho Gemba

Shinichi Arisaka

Naotsugu Koashi

Atsushi Nogi

Haruhiko Shintani

Naoko Owada

Takayuki Urata

Yoshikazu Tanaka

Masashi Morita

Takahiro Umeda

Tomoya Kamata

Hideo Kasahara

Takeshi Yonamine

Yuichi Mikami

Jin Zhang

Shigeyuki Unoki

Masatoshi Teranishi

Mikiko Yoshimura

Takehito Goto

Yuji Okuyama

Kosuke Yamauchi

Hiromi Kita

Mitsuo Yoshimura

Haruya Nakai

Tsutomu Kawashima

Shigenori Onuma

Yasuhiro Ueyama

Yusuke Ozaki

Miyuki Yoshimoto

Susumu Kitagawa

Hiroshi Inoue

Yoko Yamamoto

Toshihiro Nishimura

Fumio Kageyama

Kenji Iwamasa

Masakazu Higuchi

Toshihiro Yamada

Miho Kayama

Yasuhiro Seki

Norihisa Yoshimoto

Atusi Murata

Atushi Murata

Tadashi Aoki

Takashi Hiraoka

Hatoh Kazuhito

Yasumoto Eiichi

Jun Matsumura

Yoshikazu Ip Development Center Tanaka

Yoshikazu c/o Matsushita Electric Industrial Co Ltd Tanaka

A membrane electrode assembly of an electrochemical device includes a proton conductive solid electrolyte membrane and an electrode including Ni and an electrolyte material which contains as a primary component, at least one of a first compound having a composition represented by BaZrMO(Mrepresents at least one element selected from trivalent elements each having an ion radius of more than 0.720 A&#xb0; to less than 0.880 A&#xb0;, and 0&#x3c;x&#x3c;1 holds) and a second compound having a composition represented by BaZrTmO(0&#x3c;x&#x3c;0.3 holds).

Membrane electrode assembly of electrochemical device, membrane electrode assembly of fuel cell, fuel cell, membrane electrode assembly of electrochemical hydrogen pump, electrochemical hydrogen pump, membrane electrode assembly of hydrogen sensor, and hydrogen sensor

A hydrogen supply system includes: an electrochemical hydrogen pump including an electrolyte membrane, an anode and a cathode provided to a first and second main surfaces of the electrolyte membrane, respectively, an anode flow path and cathode flow path through which hydrogen flows, and a voltage applicator applying a voltage between the anode and cathode, pressurizing and sending hydrogen supplied to the anode via the anode flow path to the cathode by applying a voltage by the voltage applicator, and supplying the pressurized hydrogen in the cathode flow path to a hydrogen reservoir; a pressure adjuster adjusting a cathode flow path pressure; and a controller controlling the pressure adjuster and making the cathode flow path pressure higher than an anode flow path pressure before starting a hydrogen pressurization action for pressurizing and supplying hydrogen supplied to the anode flow path to the cathode flow path.

Hydrogen supply system and driving method of hydrogen supply system

A desulfurization apparatus according to the present invention includes: a first desulfurizer filled with a first desulfurization agent that removes a first sulfur compound from a hydrocarbon fuel; and a second desulfurizer filled with a second desulfurization agent that removes a second sulfur compound from the hydrocarbon fuel, the second desulfurizer being provided downstream of the first desulfurizer in a flow direction of the hydrocarbon fuel. The second desulfurization agent is constituted by a porous coordination polymer having a polymeric structure that is a combination of copper ions and organic ligands. A sulfur compound adsorption ability of the second desulfurization agent to adsorb the second sulfur compound is different from a sulfur compound adsorption ability of the first desulfurization agent to adsorb the first sulfur compound. A temperature of the second desulfurization agent is kept to 100&#xb0; C. or lower. The desulfurization apparatus thus configured makes it possible to efficiently remove the sulfur compounds from the hydrocarbon fuel at low cost with a simple configuration.

Desulfurization apparatus and desulfurization method

A hydrogen generation system including: a reformer generating hydrogen-containing gas using a raw material and reforming water; a combustor combusting hydrogen-containing gas and air and generating exhaust gas; a first channel passing cooling water; a condenser generating condensed water by heat exchange between exhaust gas and cooling water; a tank storing condensed water as cooling water; a pump supplying cooling water from the tank to the condenser; a second channel branching at a branch between the pump and condenser in the first channel, and passing some cooling water to the reformer as reforming water; a heater provided downstream of the branch, and heating the first channel; a temperature detector detecting the temperature of the first channel; and a controller, in an activation operation mode, determining whether the second channel is filled with reforming water, based on the temperature detected by the temperature detector after the heater has operated.

Hydrogen generation system and fuel cell system

A fuel cell gas diffusion layer includes a porous member containing electrically-conductive particles and polymeric resin as major components, and a plurality of holes extending from a main surface of the fuel cell gas diffusion layer are formed.

Fuel cell gas diffusion layer and method of manufacturing same

A method for producing an electrode-membrane-frame assembly according to the present invention includes arranging a previously molded first molded body on a circumferential region of first catalyst layer close to first gas diffusion layer, arranging a previously molded second molded body on a circumferential region of second catalyst layer close to second gas diffusion layer, and forming a third molded body by injection molding so as to integrally connect the first molded body and the second molded body and not to be directly in contact with an inner side region of second main surface of a polymer electrolyte membrane positioned on an inner side of an outer edge part of the second molded body when viewed from a thickness direction of the polymer electrolyte membrane, whereby a frame having the first, second, and the third molded body is formed. Thus, the polymer electrolyte membrane can be prevented from deteriorating.

Electrode-membrane-frame assembly, method for producing the same, and fuel cell

Disclosed is a membrane electrode assembly provided with a polymer electrolyte membrane; a catalyst layer (A) which is laminated onto one surface of the polymer electrolyte membrane; a gas diffusion layer (A) which is laminated onto the catalyst layer (A); a catalyst layer (B); and a gas diffusion layer (B). The outer circumferential section of the catalyst layer (A) is the membrane electrode assembly with an integrated frame which comprises a membrane electrode assembly that protrudes from the gas diffusion layer (A) and a frame adhered to the outer circumferential section of the catalyst layer (A), whereby said frame surrounds the edge of the membrane electrode assembly. The surface that is adhered to the frame in the outer circumferential section of the catalyst layer (A) comprises a plurality of cracks.

Membrane electrode assembly with integrated frame and fuel cell

In order to provide a membrane electrode assembly that can further improve power generation performances of a fuel cell, the present invention allows a rib portion () that separates mutually adjacent gas flow passages () from each other to have a porosity lower than the porosity of a lower area () of the rib portion. Thus, it is possible to suppress the deformation of the rib portion and excessive permeation of a reaction gas, and consequently to further improve the power generation performances.

Membrane electrode assembly with gas diffusion layers having a rib porosity and method of manufacturing the same, as well as fuel cell

A fuel cell of the present disclosure includes an electrolyte-layer-electrode assembly, a first separator, a second separator, and one or more gas permeation suppressing sections, the inner surface of the first separator and the inner surface of the second separator have a first region and a second region, the gas permeation suppressing section is provided at least one of a first reactant gas channel and a second reactant gas channel so as to overlap with the first region when viewed in a thickness direction of the first separator, and the gas permeation suppressing section is provided at least one of the first reactant gas channel and the second reactant gas channel so as to overlap with the second region when viewed in the thickness direction of the first separator.

Fuel cell and fuel cell stack comprising the same

An operation method of a polymer electrolyte fuel cell system including an anode () supplied with a fuel gas containing hydrogen, a cathode () supplied with an oxidizing gas containing oxygen, and a polymer electrolyte membrane () sandwiched between the anode () and the cathode (), comprises supplying to the anode () the fuel gas humidified with a higher level than the oxidizing gas to cause the anode () to have a humidified state with a higher level than the cathode (), in start-up of the polymer electrolyte fuel cell system.

Operation method of polymer electrolyte fuel cell system and polymer electrolyte fuel cell system

A close attachment region is provided on the outer side relative to an outer edge portion of a gas diffusion layer and on the inner side relative to the inner edge portion of a gasket as seen from the thickness direction of a polymer electrolyte membrane, such that separators and a frame member are closely attached to each other. Thus, it becomes possible to suppress an increase in the manufacturing cost and a reduction in the power generation performance, which is attributed to the impurity eluted from the gasket and flowing toward the gas diffusion layer.

Fuel cell

Provided is a gas diffusion layer for a fuel cell, wherein a reactive gas passage groove for distributing a reactive gas is formed in one principal surface of the gas diffusion layer, and a reinforcing member is provided along the reactive gas passage grooves. Thus, the deformation of the gas diffusion layer due to a fastening pressure can be suppressed to improve the power generation performance.

Gas diffusion layer for fuel cell, manufacturing method thereof, membrane electrode assembly, and fuel cell

A gas diffusion layer for fuel cell of the present invention is structured with a porous member mainly comprised of conductive particles such as acetylene black, graphite and a polymer resin such as PTFE. This makes it possible to achieve both an improvement in power generation performance of the fuel cell and a reduction in costs.

Gas diffusion layer for fuel cell, manufacturing method therefor, membrane electrode assembly, and fuel cell

A polymer electrolyte fuel cell of the present invention includes a membrane-electrode assembly () and separators (A,B). A plurality of reactant gas channels are formed on a main surface of at least one of the separator (A,B) and a gas diffusion layer (A,B). In a case where among the plurality of reactant gas channels, a reactant gas channel overlapping the peripheral portion of the electrode (A,B) twice is defined as a first reactant gas channel, and a reactant gas channel formed to overlap the peripheral portion of the electrode (A,B) and formed such that the length of a portion overlapping the peripheral portion is longer than a predetermined length is defined as a second reactant gas channel, the second reactant gas channel is formed such that the flow rate of a reactant gas flowing therethrough is lower than that of the reactant gas flowing through the first reactant gas channel or the second reactant gas channel does not exist.

Polymer electrolyte fuel cell comprising reactant gas channels overlapping a peripheral portion of an electrode

Growing community of inventors

Osaka, Japan

Yoichiro Tsuji