Toyota Jidosha Kabushiki Kaisha

Mitsubishi Heavy Industries Limited

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

Mikuni Color Ltd.

Yasuhiro Akita

Takeyuki Suzuki

Takeshi Nagasawa

Toyohiro Matsuura

Hiroshi Kato

Shunichi Hayashi

Hideaki Sakurai

Yasuharu Suda

Tatsuya Kawahara

Hideki Yamada

Masanori Aimu

Toyoshi Ohto

Minoru Sueda

Hiroshi Tonegawa

Norio Miwa

Hiroshi Mizutani

Yoshiyuki Tasaka

Tadao Takahashi

Izumi Tanaka

Kimihiko Ohya

Shuuichi Nagahata

Akio Yagi

Takashi Nitta

An object is to provide a technique that improves the power generation performance, while enhancing the strength of a reinforced electrolyte membrane. There is provided a method of manufacturing a reinforced electrolyte membrane that comprises a first reinforcing film on one surface of an electrolyte membrane and a second reinforcing film on the other surface of the electrolyte membrane. The method of manufacturing the reinforced electrolyte membrane comprises (a) process of thermally compressing the first reinforcing film and the second reinforcing film to the electrolyte membrane. In the process (a), a number of times of thermally compressing the second reinforcing film to the electrolyte membrane is less than a number of times of thermally compressing the first reinforcing film to the electrolyte membrane.

Method of manufacturing reinforced electrolyte membrane, method of manufacturing membrane electrode assembly, and membrane electrode assembly

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

The present invention provides a reinforced electrolyte membrane for fuel cell comprising a porous substrate impregnated with a polyelectrolyte liquid dispersion, wherein either the maximum tensile strength in the machine direction (for sheet processing) (MD) or the maximum tensile strength in the transverse direction (TD; vertical to the MD direction) for the electrolyte membrane is 70 N/mmor more at 23&#xb0; C. at a relative humidity of 50% or 40 N/mmor more at 80&#xb0; C. at a relative humidity of 90%. This reinforced electrolyte membrane for fuel cell, in which the amount of fluorine ions eluted as a result of deterioration of electrolyte membrane components in particular is reduced, has excellent durability.

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

A protective layer () is formed in a picture frame shape and a thin film shape between an electrolyte membrane () and a peripheral edge portion of a catalyst layer () by applying ink by an ink jet method. The protective layer () is formed directly on the electrolyte membrane () to a thickness in the range of about 0.1 &#x3bc;m to 5.0 &#x3bc;m.

Manufacture method for polymer electrolyte fuel, and polymer electrolyte fuel cell manufactured by the method

A humidifier is superior in terms of hygiene, simple in terms of maintenance, humidity is easily adjusted, and energy consumption is low. The humidifier uses, as a moisture permeable membrane, a moisture-permeable polyurethane obtained by using, as raw materials, at least an isocyanate component, a diol as a chain extender, and polyethylene glycol as a polyol component, and reacting these raw materials.

Humidifier

Disclosed are a printing plate precursor, a fabrication process of the printing plate precursor, a fabrication process of a printing plate, a regeneration process of the printing plate, a printing press, and a coating formulation for the printing plate precursor. According to the present invention, a printing plate can be fabricated directly from digital data, and sufficient image quality can be obtained without a developing step, i.e., a developer. To permit repeated use of the precursor, the precursor has a surface, which contains a photocatalyst and is capable of showing hydrophilicity when exposed to activating light having energy higher than band gap energy of the photocatalyst. A coating formulation&#x2014;which comprises fine particles of a thermoplastic resin having both a property that the particles unite to the surface when heated and a property that the particles decompose under action of the photocatalyst when exposed to activating light having energy higher than band gap energy of the photocatalyst&#x2014;is applied as a hydrophobizing agent onto the surface. At least a part of the surface of the precursor is heated such that the fine particles applied on the part of the surface are fixed to form a hydrophobic image area. The fine particles applied on the remaining part of the surface with the image area formed thereon are then removed.

Coating formulation for printing plate precursor, printing plate precursor, printing press, fabrication process of printing plate, and regeneration process of printing plate

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Nagoya, Japan

Yasuhiro Akita