Patent ID: 8993195
Filing Date: 2015-03-31
Classification: C23C,C25D,H01M,Y02E,Y02P

Abstract:
1. A fuel cell comprising: a unit cell comprising a first electrode layer having a hollow circular or polygonal cylinder shape, an electrolyte layer surrounding an outer circumferential surface of the first electrode layer, a second electrode layer surrounding the electrolyte layer while exposing an end portion of the electrolyte layer, and a coating layer formed by coating a mixture of ceramic and a component selected from the group consisting of NiO, CuO and a combination thereof on an outer circumferential surface of the exposed end portion of the electrolyte layer; a cell fixing member comprising a flow tube inserted into the unit cell to form a continuous flow path, a fixing tube provided to an outside of the flow tube to form a space for accommodating an end portion of the unit cell between the fixing tube and the flow tube, and a connecting portion connecting the fixing tube and the flow tube to each other and to restrict an insertion depth of the electrolyte layer and the first electrode layer; a welding portion fixing and sealing the coating layer and the inner circumferential surface of the fixing tube to each other; and an electrolytically plated Ni and/or Cu on the coating layer between the coating layer and the welding portion.