Fuel cell electrode manufacturing method

Details Fuel cell electrode manufacturing method Fuel cell electrode manufacturing method

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 4/86 (2006.01) H01M 4/88 (2006.01) H01M 4/92 (2006.01) H01M 4/96 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2462303

An electrode for a fuel cell having a positive electrode layer, a negative electrode layer, and an ion exchange membrane interposed between the layers. The ion exchange membrane is a solution. The solution for the ion exchange membrane is applied while the solution for one of the positive and negative electrodes is undried. Thereafter the solution for the other electrode is applied while the solution for the ion exchange membrane is undried. Since the layers are in undried states, the adhesion between the layers is improved. The coating film can be thin because the ion exchange film is a solution.

L'invention concerne une électrode de pile à combustible comprenant une couche d'électrode positive (20), une couche d'électrode négative (19) et une membrane d'échange d'ions (21) disposée entre les couches. La membrane d'échange d'ions est une solution. Cette solution est appliquée alors que la solution de l'une des électrodes positive ou négative n'est pas encore sèche. La solution de l'autre électrode est appliquée par la suite alors que la solution de la membrane d'échange d'ions n'est pas encore sèche. Puisque les couches se trouvent dans des états non secs, l'adhérence entre les couches est améliorée. Le film de recouvrement peut être mince parce que le film d'échange d'ions se trouve sous forme de solution.

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