Patent ID: 7838163

Claim:
A fuel cell including separators opposing each other via a power generating reaction portion disposed between the separators, each of the separators including a gas passage, a gas passage dividing rib partitioning one portion of the gas passage from an adjacent portion located adjacent to the one portion, and a plurality of protrusions formed in the gas passage, wherein in a first separator which is an at least one separator of the separators opposing each other via the power generating reaction portion, at a region of the first separator opposing a gas passage dividing rib of a second separator which is a separator opposing the first separator, a squeezing rib is formed and replaces at least one of the plurality of protrusions, the squeezing rib and the gas passage dividing rib of the second separator squeezing the power generating reaction portion, wherein the squeezing rib has a plurality of communicating passages being divided from one another and which cause the gas passage portions located on opposite sides of the squeezing rib to communicate with each other, and wherein, at the region of the first separator, a contact area of the squeezing rib with the power generating reaction portion is adapted to be larger than a contact area of the protrusion of the first separator with the power generating reaction portion in a case where the protrusion were formed without forming the squeezing rib at the region of the first separator.