Gas diffusion electrode of carbon fiber non-woven fabric and polymer electrolyte fuel cell using it, solid polymer fuel cell, manufacturing method of carbon fiber non-woven fabric and composite sheet

Title:

Gas diffusion electrode of carbon fiber non-woven fabric and polymer electrolyte fuel cell using it, solid polymer fuel cell, manufacturing method of carbon fiber non-woven fabric and composite sheet

Document Type and Number:

Japanese Patent JP6364771

Kind Code:

B2

Abstract:

Provided is a carbon-fiber nonwoven cloth with low resistance to gases or liquids passing through, and low resistance in the thickness direction to heat or electricity, which is particularly appropriate for a gas diffusion electrode of a polymer electrolyte fuel cell; the cloth having an air gap with a diameter of at least 20 µm, at least some of the carbon fibers being continuous from one surface to the other surface, and the apparent density being 0.2-1.0 g/cm 3 , or, having an air gap with a diameter of at least 20 µm and at least some of the carbon fibers being mutually interlaced, and further, at least some of the carbon fibers being oriented toward the thickness direction and the apparent density being 0.2-1.0 g/cm 3 .

Inventors:

Kentaro Kajiwara
Satoru Shimoyama
Tomoyuki Horiguchi

Application Number:

JP2013554737A

Publication Date:

August 01, 2018

Filing Date:

November 27, 2013

Export Citation:

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