Fuel cell current collector

Details Fuel cell current collector Fuel cell current collector

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 2/26 (2006.01) H01M 4/86 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2386677

A fuel cell is fitted with a current collector situated between a ribbed separator (10) and an electrode. The current collector is comprised of a plurality of flat wires (3A, 3B, 3C) which span the peaks of the ribs of the separator. The flat wires are of sufficient thickness, width, and frequency to support the electrode against the compressive load of the fuel cell stack. The width and frequency are alterable to suppress or enhance reactant access to the electrode.

L'invention concerne une pile à combustible comportant un collecteur de courant disposé entre un séparateur nervuré (10) et une électrode. Le collecteur de courant est composé d'une pluralité de fils plats (3A, 3B, 3C) recouvrant les crêtes des nervures du séparateur. La largeur, l'épaisseur, et la fréquence des fils plats sont suffisantes pour soutenir l'électrode contre la charge de compression de l'empilement des piles à combustible. La largeur et la fréquence peuvent être modifiées afin de supprimer ou d'augmenter l'accès du réactif à l'électrode.

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