Patent ID: 8252475
Filing Date: 2012-08-28
Classification: H01M,Y02E,Y10T

Abstract:
1. A fuel-cell separator which is interposed between a plurality of electrolyte assemblies each constructed of an electrolyte layer containing an electrolyte medium and a catalytic electrode disposed on a surface in a thickness-wise direction of the electrolyte layer, the separator comprising: a separating section for achieving separation between a fuel gas channel and an oxidizer gas channel; and a sealing section disposed along an outer periphery of the separator, for preventing leakage of fuel gas and oxidizer gas: wherein the separating section is composed of a metal sheet serving as a core member, and a resin layer formed on a surface of the metal sheet, the resin layer is provided with at least one of the fuel gas channel and the oxidizer gas channel, the sealing section is composed of the metal sheet and the resin layer formed on a surface of the metal sheet, the metal sheet having an outer periphery bent in a V-shape which corresponds to a sealing projection extending in parallel with a surface of the electrolyte assembly on which a catalytic electrode is formed, the sealing projection having a vertex which is constituted so as to be brought into pressure-contact with the electrolyte assembly under a resilient force, the sealing projection has the V-shaped sectional profile when viewed in a direction perpendicular to a direction in which the fuel gas and the oxidizer gas flow, and the sealing section is formed in a manner such that the vertex of the sealing projection does not extend beyond a position of contact with the electrolyte assembly in its assembled condition.