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    SOLID-STATE ELECTROLYTE SHEET, SOLID OXIDE FUEL CELL, SOLID OXIDE ELECTROLYZER CELL, AND METHODS OF MAKING THE SAME
    13.
    发明申请
    SOLID-STATE ELECTROLYTE SHEET, SOLID OXIDE FUEL CELL, SOLID OXIDE ELECTROLYZER CELL, AND METHODS OF MAKING THE SAME 有权

    公开(公告)号：US20250079491A1

    公开(公告)日：2025-03-06

    申请号：US18814812

    申请日：2024-08-26

    Applicant: CORNING INCORPORATED

    Inventor： Brittany Lynn Higgins ,  Rahul Suryakant Kadam ,  Timothy Joseph Markel ,  Yan Wang ,  Nathan Michael Zink

    IPC: H01M8/1253 ,  H01M8/12

    Abstract: A solid-state electrolyte sheet includes scandia-stabilized zirconia grains and a thickness from 10 micrometers to 300 micrometers. In aspects, the solid-state electrolyte sheet exhibits an ionic conductivity at 850° C. of 9.5 S/cm or more. In aspects, the scandia-stabilized zirconia grains includes from 3 mol % to 11 mol % or from 3 mol % to 6 mol % scandia. In aspects, an average grain size can be from 0.1 micrometers to 2.5 micrometers. In aspects, a majority of pores can be a closed porosity. In aspects, the solid-state electrolyte sheet can be part of a solid oxide fuel cell and/or a solid oxide electrolyzer cell. Methods include casting a green tape comprising scandia-stabilized zirconia and firing the green tape to form the solid-state electrolyte sheet. In aspects, the firing can include heating at a maximum temperature of 1650° C. or less and/or heating at temperatures of 600° C. or more for 90 minutes or less.

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