Fuel cell having an electrolyte-strengthening substrate

Details Fuel cell having an electrolyte-strengthening substrate Fuel cell having an electrolyte-strengthening substrate

H - Electricity

01

M

H01M 8/02 (2006.01) H01M 8/12 (2006.01)

Patent

CA 2611610

A fuel cell 100 includes a joint portion A in which a first conductive separator 1, an electrolyte-strengthening substrate 3 and a second conductive separator 8 are jointed in order with a brazing materials 11 and 12. The electrolyte- strengthening substrate 3 is formed so as to be larger than a joint area of the first conductive separator 1 and a joint area of the second conductive separator 8 in the joint portion. The electrolyte-strengthening substrate 3 has an insulating property at least at an area where the electrolyte-strengthening substrate 3 contacts with the brazing materials 11 and 12.

La présente invention concerne une pile à combustible (100) comprenant une partie de joint (A) dans laquelle un premier séparateur conducteur (1), une plaque de renfort électrolytique (3) et un second séparateur conducteur (8) sont successivement joints avec des métaux d~apport de brasage (11, 12). La présente pile à combustible est caractérisée en ce que ladite plaque (3) est plus grande que les surfaces de joint du premier séparateur conducteur (1) et du second séparateur conducteur (8) dans la partie de joint (A) et qu~elle est isolée au moins dans des parties en contact avec lesdits métaux (11, 12).

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