Patent ID: 8685586
Filing Date: 2014-04-01
Classification: H01M,Y02E,Y10T

Abstract:
1. A fuel cell separator comprising: a first electrode facing plate having a first cell-reaction region provided to face a first electrode of a first membrane electrode assembly when constituting a fuel cell, wherein the first cell-reaction region is flat and a gas flow path is not formed on the first cell-reaction region: a second electrode facing plate having a second cell-reaction region provided to face a second electrode of a second membrane electrode assembly when constituting a fuel cell, wherein the second cell-reaction region is flat and a gas flow path is not formed on the second cell-reaction region; and an intermediate plate held between and in direct contact with the first electrode facing plate and the second electrode facing plate; wherein the first electrode facing plate, the second electrode facing plate and the intermediate plate respectively comprise a reaction gas supply manifold opening that forms a single reaction gas supply manifold to which a reaction gas is to be supplied, wherein the single reaction gas supply manifold pierces the separator in the thickness direction, wherein the first electrode facing plate further comprises a plurality of reaction gas supply holes that pierce the first electrode facing plate in the thickness direction and are formed at an end of the first cell-reaction region, and wherein the intermediate plate further comprises a plurality of reaction gas supply path openings that pierce the intermediate plate in the thickness direction and form reaction gas supply paths, wherein each of the reaction gas supply paths has one end connected to the single reaction gas supply manifold and the other end connected to at least one of the plurality of reaction gas supply holes formed on the first electrode facing plate; wherein the reaction gas supply manifold includes a fuel gas supply manifold for supplying fuel gas, and wherein the fuel gas supply manifold is positioned adjacent to a corner of the intermediate plate.