Fuel cell separator

H - Electricity – 01 – M

Patent

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Details

H01M 8/02 (2006.01) H01M 8/04 (2006.01)

Patent

CA 2395425

A section of a fuel cell separator molding (4A), comprising a gas flow path forming rib portion (11) formed by filling a composite compound formed by binding graphite powder with thermosetting resin in a mold (14) using a resin molding method, is formed into a laminate structure in which flat graphite particles (14) are partially overlap one another in the thickness direction, whereby enhancing gas impermeability, mechanical strength and electrical conductivity required for by a fuel cell separator.

Une partie d'un moulage (4A) de séparateur pour pile à combustible, comportant une zone à nervures formant un chemin d'écoulement de gaz et formée par remplissage d'un composé composite obtenu par liaison de poudre de graphite avec de la résine thermodurcissable dans un moule (14) selon un procédé de moulage de résine, est constituée en une structure laminée dans laquelle des particules de graphite plates (14) se chevauchent partiellement dans le sens de l'épaisseur. Cette configuration améliore l'imperméabilité aux gaz, la résistance mécanique et la conductivité électrique nécessaires pour un séparateur pour pile à combustible.

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