GASDIFFUSIONSANLÆG MED HØJ RENHED

A method for producing a gas diffusion layer for a fuel cell, including providing a fiber composition which includes carbon fibers and/or precursors of carbon fibers and subjecting the fiber composition to a method for producing a fibrous web. The method further includes consolidating the fibrous we...

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Bibliographische Detailangaben
Hauptverfasser:	RAKOUSKY, Christoph, BARSCH, Hannes, BOCK, Achim, KLEIN, Kristof, HIRN, Klaus, WAGNER, Klaus-Dietmar
Format:	Patent
Sprache:	dan
Schlagworte:	BASIC ELECTRIC ELEMENTS BRAIDING COTTON-WOOL ELECTRICITY FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL NON-WOVEN FABRICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TEXTILES TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	A method for producing a gas diffusion layer for a fuel cell, including providing a fiber composition which includes carbon fibers and/or precursors of carbon fibers and subjecting the fiber composition to a method for producing a fibrous web. The method further includes consolidating the fibrous web by exposure to aqueous fluid jets to form a nonwoven, water used by the aqueous fluid jets having a conductivity of at most 250 microsiemens/cm at 25° C. If the fiber composition includes precursors of carbon fibers, the nonwoven is subjected to pyrolysis at a temperature of at least 1000° C.