Toray Industries, Inc.

Japan Vilene Company, Ltd.

Shusuke Shirai

Daisuke Izuhara

Tomoyuki Kunita

Hiroaki Umeda

Takashi Tarao

Daisuke Ogata

Kenta Minamibayashi

Tatsunori Ito

Junpei Yamaguchi

Noriko Michihata

Yumiko Okamoto

Yuuta Wakamoto

A laminated electrolyte membrane including a first layer including a hydrocarbon polymer electrolyte as a major component, and a second layer including a fluoropolymer electrolyte and polyvinylidene fluoride as major components laminated on at least one side of the first layer, wherein the first layer and the second layer are laminated via a region in which components constituting both layers are mixed in a mixed region.

Multilayer electrolyte membrane, membrane electrode assembly, water electrolysis-type hydrogen generator and method of producing multilayer electrolyte membrane

A composite polymer electrolyte membrane has a high proton conductivity even under low-humidity, low-temperature conditions, a reduced dimensional change rate, a high mechanical strength and high chemical stability, and produces a solid polymer electrolyte fuel cell with a high output and high physical durability, a membrane electrode assembly, and a solid polymer electrolyte fuel cell containing the same. This composite polymer electrolyte membrane contains a composite layer composed mainly of a polyazole-containing nanofiber nonwoven fabric (A) and an ionic group-containing polymer electrolyte (B), the polyazole-containing nanofiber nonwoven fabric (A) being basic.

Composite polymer electrolyte membrane, membrane electrode assembly and solid polymer fuel cell using same

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Otsu, Japan

Shusuke Shirai