| abstract |
On the surface of one side of the Zr-containing solid electrolyte layer (9), an intermediate layer (4) containing CeO 2 in which a rare earth element (other than Ce) is dissolved in a solid solution and a first electrode layer (1) are provided in this order. These are provided with a second electrode layer (7) on the other surface of the solid electrolyte layer (9) opposite to one surface, and the intermediate layer (4) is provided with a second electrode layer (7) on the solid electrolyte layer (9) side. A first layer (4a) and a second layer (4b) provided on the first layer (4a) and located on the side of the first electrode layer 1, the first layer (4a) is more rare earth than the second layer (4b) The concentration of elements is higher. |