GAS DIFFUSION ELECTRODE BASE MATERIAL AND METHOD FOR PRODUCING SAME, AND FUEL CELL

GAS DIFFUSION ELECTRODE BASE MATERIAL AND METHOD FOR PRODUCING SAME, AND FUEL CELL

A gas diffusion electrode medium for a fuel cell, which has high water repellent performance and excellent anti-flooding performance, can exhibit high power generation performance, and has high productivity is provided. A long gas diffusion electrode medium is composed of a conductive porous medium...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WATANABE, Fumitaka, UTSUNOMIYA, Masamichi
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:A gas diffusion electrode medium for a fuel cell, which has high water repellent performance and excellent anti-flooding performance, can exhibit high power generation performance, and has high productivity is provided. A long gas diffusion electrode medium is composed of a conductive porous medium having a microporous layer containing a carbonaceous powder and a water repellent substance on one surface of the conductive porous medium, in which 65% or more of linear cracks observed in the microporous layer from the top surface are inclined at 45° to 90° from a width direction of the gas diffusion electrode medium.