| 简介 |
A cell structure which is provided with a cathode, an anode, and a solid electrolyte layer that has proton conductivity and is interposed between the cathode and the anode. The solid electrolyte layer contains a compound that has a perovskite structure, while containing zirconium, cerium and a rare earth element other than cerium. If T is the thickness of the solid electrolyte layer, the element ratio of the zirconium to the cerium at the position of 0.25T from the cathode-side surface of the solid electrolyte layer, namely ZrC/CeC and the element ratio of the zirconium to the cerium at the position of 0.25T from the anode-side surface of the solid electrolyte layer, namely ZrA/CeA satisfy ZrC/CeC > ZrA/CeA and ZrC/CeC > 1. |
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