SOLID OXIDE ELECTROLYSIS CELL, AND METHOD AND SYSTEM FOR OPERATING SAME

    公开(公告)号:US20220170169A1

    公开(公告)日:2022-06-02

    申请号:US17440979

    申请日:2020-03-19

    摘要: A method for operating a solid oxide electrolysis cell which can suppress degradation of the hydrogen electrode, is provided. A method for operating a solid oxide electrolysis cell includes a hydrogen electrode, an oxygen electrode, and an electrolyte layer sandwiched between the hydrogen electrode and the oxygen electrode. The hydrogen electrode includes a catalyst layer structured with Ni-containing particles dispersed and supported on a porous mixed ionic and electronic conducting oxide. The method includes an alternating operation in which a water vapor electrolysis operation and a fuel cell operation are repeated alternately.

    PROTON CONDUCTOR, FUEL CELL, AND WATER ELECTROLYSIS DEVICE

    公开(公告)号:US20220149387A1

    公开(公告)日:2022-05-12

    申请号:US17436399

    申请日:2020-02-12

    IPC分类号: H01M4/90 H01M8/126 H01M8/1253

    摘要: Provided is a proton conductor that achieves an improvement in transport number while suppressing a decrease in conductivity. The proton conductor contains a metal oxide having a perovskite structure and represented by formula (1): AaB1-x-yB′xMyO3-δ (1), wherein an element A is at least one element selected from the group consisting of Ba, Sr, and Ca, an element B is at least one element selected from the group consisting of Zr and Ce, an element B′ is Hf, an element M is at least one element selected from the group consisting of Y, Yb, Er, Ho, Tm, Gd, In, and Sc, δ is an oxygen deficiency amount, and “a”, “x”, and “y” satisfy 0.9≤a≤1.0, 0.1≤y≤0.2, and 0