Patent ID: 9017894
Filing Date: 2015-04-28
Classification: H01M,Y02E,Y02T

Abstract:
1. A fuel cell formed by stacking electrolyte electrode assemblies and separators alternately in a stacking direction, the electrolyte electrode assemblies each including an anode, a cathode, and an electrolyte interposed between the anode and the cathode, the separators each including: a sandwiching section for sandwiching the electrolyte electrode assembly, a fuel gas channel for supplying a fuel gas along an electrode surface of the anode of one electrolyte electrode assembly and an oxygen-containing gas channel for supplying an oxygen-containing gas along an electrode surface of the cathode of another electrolyte electrode assembly being individually formed in the sandwiching section; a bridge connected to the sandwiching section, a fuel gas supply channel for supplying the fuel gas to the fuel gas channel being formed in the bridge; and a fuel gas supply section connected to the bridge, a fuel gas supply passage extending through the fuel gas supply section in the stacking direction for supplying the fuel gas to the fuel gas supply channel, the sandwiching section including: a plurality of fuel gas outlet channels formed in the outer circumferential protrusion and provided on a side opposite to the portion connecting the sandwiching section and the bridge, wherein the plurality of fuel gas outlet channels includes: wherein, in each of the plurality of fuel gas outlet channels, a cross sectional area on a downstream side of the fuel gas outlet channel in a gas flow direction of the fuel gas is larger than a cross sectional area on an upstream side of the fuel gas outlet channel in the gas flow direction of the fuel gas.