Fuel cell having metallic separator plate with intersecting cooling channels

摘要

A first metal separator (18) of one of adjacent power generation cells (12) and a second metal separator (20) of the other of the adjacent power generation cells (12) are directly stacked together to form a coolant flow field (54). The first metal separator (18) has a press line (38a) protruding toward the coolant flow field (54), between a fuel gas flow field (34) and an inlet buffer (36a). The second metal separator (20) has a press line (48a) protruding toward the coolant flow field (54), between an oxygen-containing gas flow field (44) and an inlet buffer (46a). The press lines (38a, 48a) contact each other to limit flow of the coolant into a back surface buffer (56a).