Low-temperature fuel cell

H - Electricity – 01 – M

Patent

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Details

H01M 8/02 (2006.01)

Patent

CA 2432115

The composite conductor plate (5) of a low-temperature fuel cell (1) poses the following problem: it must be extremely corrosion-resistant to pure oxygen that is humidified by water and to pure hydrogen and must at the same time be able to be processed mechanically. To solve said problem, the invention provides a composite conductor plate (5) consisting of 50 to 65 wt. % Ni, 12 to 22 wt. % Cr, 10 to 18 wt. % Mo, 4 to 10 wt. % Fe and 0.5 to 5 wt. % W.

La plaque conductrice composite (5) d'une pile à combustible basse température (1) pose le problème suivant : elle doit à la fois être très résistante à la corrosion en présence d'oxygène pur humidifié d'eau et d'hydrogène pur humidifié d'eau, et conserver son usinabilité mécanique. Pour apporter une solution à ce problème, la présente invention porte sur une plaque conductrice composite (5) comprenant 50 à 65 % en poids de Ni, 12 à 22 % en poids de Cr, 10 à 18 % en poids de Mo, 4 à 10 % en poids de Fe et 0,5 à 5 % en poids de W.

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