Separation of oxygen from oxygen-containing gas
    1.
    发明授权
    Separation of oxygen from oxygen-containing gas 有权
    氧气与含氧气体的分离

    公开(公告)号:US6090265A

    公开(公告)日:2000-07-18

    申请号:US141909

    申请日:1998-08-28

    摘要: An electrochemical device for separating oxygen from an oxygen-containing gas comprises a plurality of planar ion-conductive solid electrolyte plates and electrically-conductive gas-impermeable interconnects assembled in a multi-cell stack. Electrically-conductive anode and cathode material is applied to opposite sides of each electrolyte plate. A gas-tight anode seal is bonded between the anode side of each electrolyte plate and the anode side of the adjacent interconnect. A regulating electrode, applied to the anode side of each electrolyte plate between the anode seal and the edge of the anode, eliminates anode seal failure by maintaining the 24-hour anode seal power density below about 1.5 .mu.W/cm.sup.2. A gas-tight seal is applied between the cathode sides of each electrolyte plate and the adjacent interconnect such that the anode and cathode seals are radially offset on opposite sides of the plate. The combination of regulating electrodes and offset seals is particularly effective in eliminating anode seal failure.

    摘要翻译: 用于从含氧气体中分离氧的电化学装置包括多个平面离子导电固体电解质板和组装在多电池堆中的导电气体不可渗透互连。 将导电阳极和阴极材料施加到每个电解质板的相对侧。 在每个电解质板的阳极侧和相邻互连件的阳极侧之间结合气密阳极密封。 施加到阳极密封件和阳极边缘之间的每个电解质板的阳极侧的调节电极通过将24小时的阳极密封功率密度维持在约1.5μW/ cm 2以下来消除阳极密封故障。 在每个电解质板的阴极侧和相邻的互连件之间施加气密密封,使得阳极和阴极密封件在板的相对侧上径向偏移。 调节电极和偏移密封的组合在消除阳极密封故障方面特别有效。