Carbon sheet, gas diffusion electrode substrate, and fuel cell

Carbon sheet, gas diffusion electrode substrate, and fuel cell

A porous carbon sheet including at least carbon fibers, having a thickness of 30 to 95 μm, a gas permeation resistance of 0.5 to 8.8 Pa, and a tensile strength of 5 to 50 N/cm, and a gas diffusion electrode substrate including a porous carbon sheet containing at least carbon fibers, at least one sur...

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Bibliographische Detailangaben
Hauptverfasser: Sode, Katsuya, Sunahara, Tetsuya, Chida, Takashi, Sugahara, Toru, Wakatabe, Michio, Hashimoto, Masaru, Umezaki, Yuya
Format: Patent
Sprache:eng
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 porous carbon sheet including at least carbon fibers, having a thickness of 30 to 95 μm, a gas permeation resistance of 0.5 to 8.8 Pa, and a tensile strength of 5 to 50 N/cm, and a gas diffusion electrode substrate including a porous carbon sheet containing at least carbon fibers, at least one surface thereof having a microporous layer containing at least an electric conductive filler, the gas diffusion electrode substrate being dividable in the thickness direction into a smaller pore part and a larger pore part, the larger pore part having a thickness of 3 to 60 μm.