Fuel-cell gas dispersion layer, and method for producing same

Fuel-cell gas dispersion layer, and method for producing same

A fuel-cell gas dispersion layer configured from a porous carbon fiber substrate obtained by binding discontinuous carbon fibers using a carbide, and a porous layer containing at least carbonaceous particles, wherein: a porous layer (A) is disposed on one surface (A) of the porous carbon fiber subst...

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Hauptverfasser: OKANO, YASUTAKA, ANTOKU, KOICHI, WADAHARA, EISUKE
Format: Patent
Sprache:chi ; eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator OKANO, YASUTAKA
ANTOKU, KOICHI
WADAHARA, EISUKE
description A fuel-cell gas dispersion layer configured from a porous carbon fiber substrate obtained by binding discontinuous carbon fibers using a carbide, and a porous layer containing at least carbonaceous particles, wherein: a porous layer (A) is disposed on one surface (A) of the porous carbon fiber substrate so as to have an average thickness (t1) of 10-55[mu]m; a porous layer (J) is inserted into the interior of the porous carbon fiber substrate in a manner such that at least a portion thereof is present on the opposite surface (B); the proportion of the cross-sectional area in the thickness direction of openings in the interior of the porous carbon fiber substrate is 5-40%; the proportion of openings in the porous layer (A) and/or the porous layer (J) is 50-85%; the thickness of the porous carbon fiber substrate is 60-300[mu]m; and the bulk density of the porous carbon fiber substrate is 0.20-0.45g/cm3.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title Fuel-cell gas dispersion layer, and method for producing same
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