SOLID OXIDE ELECTROCHEMICAL CELL AND USE THEREOF

• Main Authors: OSADA NORIKAZU, INUZUKA RIKO, KAMEDA TSUNEJI, KAWAHARA KOICHI, SUZUKI MASAYA
• Format: Patent
• Language: English; Japanese
• Published: 17.01.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; ELECTRICITY; INORGANIC CHEMISTRY; METALLURGY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To provide a solid oxide electrochemical cell in which no high-resistance layer is formed at the interface between an electrolyte membrane and an oxygen electrode.SOLUTION: A solid oxide electrochemical cell includes an oxygen electrode containing titanium oxide and a strontium-containing composite oxide, a solid electrolyte containing zirconium oxide, a hydrogen electrode, and an intermediate layer containing rare earth-added cerium oxide between the solid electrolyte and the oxygen electrode, and the strontium-containing composite oxide of the oxygen electrode is La1-xSrxCoyFe1-yO3-σ(0<x<1, 0<y≤1, σ is a value that satisfies the charge neutrality condition.)SELECTED DRAWING: Figure 1 【課題】電解質膜と酸素極の界面に高抵抗層の形成が無い固体酸化物形電気化学セルを提供する。【解決手段】酸化チタンとストロンチウム含有複合酸化物とを含む酸素極と、ジルコニウム酸化物を含む固体電解質と、水素極と、前記固体電解質と前記酸素極との間には希土類添加酸化セリウムを含む中間層とを備え、前記酸素極の前記ストロンチウム含有複合酸化物は、Ｌａ1-xＳｒxＣｏyＦｅ1-yＯ3-σ（0＜ｘ＜1、0＜ｙ≦1であり、σは、電荷中性条件を満たすように定まる値である。）である固体酸化物形電気化学セルとする。【選択図】図１