CELL, CELL STACK DEVICE, MODULE, AND MODULE HOUSING DEVICE

A cell includes an element portion including a first electrode layer, a solid electrolyte layer that contains Zr and that is located above the first electrode layer, an intermediate layer that contains CeOcontaining a rare earth element other than Ce and that is located above the solid electrolyte layer, and a second electrode layer located above the intermediate layer. The intermediate layer includes a first intermediate layer and a second intermediate layer that contains Zr and Ce and that is located at at least a portion between the first intermediate layer and the solid electrolyte layer. In a plan view from the second electrode layer, the second intermediate layer located at an outer peripheral portion of the intermediate layer includes a portion with a thickness greater than the second intermediate layer overlapping a center of the second electrode layer. A cell stack device, a module, and a module housing device include a plurality of the cells.