Internal cooling arrangement for undulate mea fuel cell stack

Details Internal cooling arrangement for undulate mea fuel cell stack Internal cooling arrangement for undulate mea fuel cell stack

H - Electricity

01

M

H01M 8/10 (2006.01) H01M 8/02 (2006.01) H01M 8/24 (2006.01) H01M 8/04 (2006.01)

Patent

CA 2336314

In a PEM-type fuel cell, coolant conduits (79) are provided that follow the reactant gas flowpaths on either side of the MEA (70) and are formed in the interface between adjacent contacting separator layers (72) of consecutive fuel cells in the stack. These coolant conduits can eliminate the need for coolant conduits that pass in the stack dimension through the MEA layers.

La présente invention concerne une pile à combustible du type à membrane échangeuse de protons dans laquelle des conduits de réfrigérant suivent les voies d'écoulement du gaz réactant de chaque côté de l'ensemble d'électrodes à membrane et sont formés à l'interface entre les couches de séparateur adjacentes en contact des piles à combustible consécutives de l'empilage. Les conduits de réfrigérant de l'invention éliminent la nécessité de former des conduits traversant les couches de l'ensemble d'électrodes à membrane dans le sens de l'empilage.

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