Toyota Jidosha Kabushiki Kaisha

E.i. Dupont De Nemours and Company

W.l. Gore & Associates, Co., Ltd.

The Chemours Company Fc, LLC

Masanori Aimu

Robert Clayton Wheland

Masaaki Matsusue

Mark Gerrit Roelofs

Ralph Munson Aten

Randal Lewis Perry

Hiroshi Kato

Takeyuki Suzuki

Nobuaki Nonoyama

Tatsuya Kawahara

Hideki Yamada

Yasuhiro Akita

Takeshi Nagasawa

Naohiro Mitani

Toyohiro Matsuura

A fuel cell system includes: a fuel cell; an oxidant gas supply unit configured to supply an oxidant gas to a cathode electrode of the fuel cell; and a gas pressure control unit configured to detect as a gas pressure sensitivity a ratio of variation in an output of the fuel cell to variation in the pressure of the oxidant gas, specify a correspondence relationship between the pressure of the oxidant gas and the output of the fuel cell on the basis of the detected gas pressure sensitivity, and control the pressure of the oxidant gas on the basis of the specified correspondence relationship.

Fuel cell system and control method thereof

There is provided a technique of reducing the possibility of the occurrence of wrinkles in the process of bonding strip-shaped members to each other. A long strip-shaped first member is conveyed in a longitudinal direction of the first member. A width of a long strip-shaped second member in the shorter direction of the second member is larger than a width of the first member in a shorter direction of the first member. The second member is placed such that respective ends in a shorter direction of the second member are freed. The second member is bonded to the first member being conveyed, such that the shorter direction of the first member is aligned with the shorter direction of the second member and that respective ends in the shorter direction of the first member are placed between the respective ends in the shorter direction of the second member. The second member bonded to the first member is then conveyed along with the conveyed first member.

Method of bonding strip-shaped members to each other and apparatus configured to bond strip-shaped members to each other

Provided is a lamination device that laminates an electrolyte film and a porous film. The lamination device includes a support portion configured to support a porous film roll, in which the porous film is wound, such that the porous film roll is able to revolve, an unwinding portion configured to support an electrolyte film roll, in which the electrolyte film is wound, and unwind the electrolyte film from the electrolyte film roll, a conveying portion configured to convey the unwound electrolyte film, and a control portion configured to control the support portion, the unwinding portion, and the conveying portion. The control portion is configured to control the support portion such that the conveyed electrolyte film and the porous film roll are brought closer to one another and an outer peripheral surface of the porous film roll is pressed against one of surfaces of the electrolyte film.

Lamination device

An electrode () for fuel cell comprises: a catalyst carrier () that is an electrically-conductive carrier () with a catalyst () supported thereon; a first electrolyte resin (); and a second electrolyte resin (). The first electrolyte resin has oxygen permeability of less than 2.2&#xd7;10mol/(m s Pa) in an environment having temperature of 80 degrees Celsius and relative humidity of 50%. The second electrolyte resin has oxygen permeability of not less than 2.2&#xd7;10mol/(m s Pa) in the environment having temperature of 80 degrees Celsius and relative humidity of 50%.

Electrode for fuel cell, manufacturing method of electrode for fuel cell, polymer electrolyte fuel cell and catalyst ink

A cathode catalyst layer used for a polymer electrolyte fuel cell that includes an electrolyte membrane is provided. The cathode catalyst layer comprises a catalyst having weight of not greater than 0.3 mg/cmof a reaction surface of the cathode catalyst layer that is adjoining the electrolyte membrane; and an electrolyte resin having oxygen permeability of not less than 2.2*10mol/m/s/Pa in an environment of temperature of 80 degrees Celsius and relative humidity of 50%.

Cathode catalyst layer, membrane electrode assembly and polymer electrolyte fuel cell and manufacturing method thereof

It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte.

Reinforced electrolyte membrane for fuel cell, membrane-electrode assembly for fuel cell, and polymer electrolyte fuel cell comprising the same

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Susono, Japan

Masanori Aimu