| 简介 |
The present invention curbs reduction in cell performance due to mutual diffusion of elements or a difference in expansion amount in a reduction atmosphere between a solid electrolyte layer and a fuel electrode. This electrochemical cell is provided with : a solid electrolyte layer comprising ZrO2 containing a first rare earth element; an air electrode disposed on one side of the solid electrolyte layer; and a fuel electrode disposed on the other side of the solid electrolyte layer. The fuel electrode comprises : CeO2 containing a second rare earth element; and Ni or a Ni-containing alloy. The electrochemical cell is further provided with an intermediate layer disposed between the solid electrolyte layer and the fuel electrode. The intermediate layer comprises a solid solution that contains Zr, Ce, the first rare earth element, and the second rare earth element. |
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