Patent ID: 9252435
Filing Date: 2016-02-02
CPC Classification: H01M,Y02E

Claim Text:
1. A solid oxide fuel cell device that generates power by using fuel gas and oxidant gas, comprising a fuel cell assembly having a plurality of fuel cells each including a fuel electrode layer to which the fuel gas is supplied, an air electrode layer to which the oxidant gas is supplied, and a solid electrolyte layer provided between the fuel electrode layer and the air electrode layer; and a partition provided between the plurality of fuel cells, wherein the fuel cell includes an Ag seal portion that separates the fuel gas and the oxidant gas, and a dense body is at least partially formed over at least either a fuel gas side surface of the Ag seal portion or an oxidant gas side surface of the Ag seal portion, the Ag seal portion is filled between the fuel cell and the partition, the dense body is formed over the fuel cell, the Ag seal portion, and the partition, the solid oxide fuel cell device further has a concave portion surrounded and defined by the fuel cell, the Ag seal portion and the partition, the dense body is formed over an inner wall of the concave portion, and the thickness of the dense body on the Ag seal portion in the concave portion is larger than the thickness of the dense body on the fuel cell in the concave portion and the thickness of the dense body on the partition in the concave portion.