Fuel cell with simplified separator structure

H - Electricity – 01 – M

Patent

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Details

H01M 8/04 (2006.01) H01M 2/14 (2006.01) H01M 8/24 (2006.01)

Patent

CA 2608616

The present application relates to the technical field of fuel cells and their separators. An aspect of the application is to simplify separator structure and reduce the number of steps for fabricating separators. The fuel cell of the present application may contain an electrolyte electrode assembly and a pair of separators sandwiching said electrolyte electrode assembly, said electrolyte electrode assembly including a pair of electrodes, and an electrolyte interposed between said electrodes, a reactant gas flow field extending along an electrode surface between said electrolyte electrode assembly and each of said separators, a reactant gas supply passage for flowing a reactant gas, extending through said separators in a stacking direction. Further, a hole extends through said electrolyte electrode assembly in the stacking direction for connecting said reactant gas supply passage and said reactant gas flow field.

La présente demande se rapporte au domaine technique des piles à combustible et leurs séparateurs. Un aspect de la demande est de simplifier la structure des séparateurs et de réduire le nombre des étapes de la fabrication des séparateurs. La pile à combustible de la présente demande peut contenir un ensemble électrode électrolytique et une paire de séparateurs prise en sandwiche entre ledit ensemble électrode électrolytique, ledit ensemble électrode électrolytique comprenant une paire d'électrodes et un électrolyte interposé entre lesdites électrodes, un champ de flux gazeux réactant se prolongeant le long d'une surface d'électrode entre ledit ensemble électrode électrolytique et chacun desdits séparateurs, un passage d'alimentation de gaz réactant pour l'écoulement d'un gaz réactant, se prolongeant dans lesdits séparateurs dans une direction d'empilage. De plus, un orifice `traverse ledit ensemble électrode électrolytique dans la direction d'empilage pour connecter ledit passage d'alimentation de gaz réactant et ledit champ de flux gazeux réactant.

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