To provide a method for easily producing ultrafine fibers capable of forming a catalyst layer having high gas diffusibility at a low production cost; an apparatus for producing the fiber; a method for easily producing the catalyst layer having high gas diffusibility at a low cost; a conductive fiber capable of forming the catalyst layer having high gas diffusibility, and a membrane electrode assembly for a solid polymer fuel cell capable of exhibiting high power generation performance even in the case of using the conductive fiber in the solid polymer fuel cell and operating the cell at high current density.
There are provided the method for producing a fiber by electrospinning of a spinning dope containing a polymer and a solvent, wherein the spinning dope is drawn by air flow during the spinning by electrospinning; the production apparatus 10 for the fiber; the conductive fiber having a core-sheath structure in which at least one of the core part and the sheath part contains a metal-containing catalyst; and a membrane electrode assembly containing the conductive fiber in the catalyst layer.
COPYRIGHT: (C)2010,JPO&INPIT
Shogo Kodera
Katsuya Fujii
Hiroyuki Watanabe
Hiroshi Uyama
Chie Matsubara
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Masatake Shiga
Suzuki Mitsuyoshi
Noriko Yanai