Patent ID: 6042703
Filing Date: 2000-03-28
Classification: B01D,C01B,C04B,H01M,Y02E

Abstract:
An electrolyte plate for a planar electrolytic cell useful for the separation of oxygen from an oxygen-containing gas mixture, wherein the electrolyte plate has an anode side and a cathode side, wherein the planar electrolytic cell comprises the electrolyte plate, a surface of a first electrically-conductive gas-impermeable interconnect in electrical contact with the cathode side of the electrolyte plate and a surface of a second electrically-conductive gas-impermeable interconnect in electrical contact with the anode side of the electrolyte plate, the electrolyte plate comprising:(a) a planar solid electrolyte;(b) an anode in electrical contact with a surface of the planar solid electrolyte;(c) a cathode in electrical contact with the opposite surface of the planar solid electrolyte; and(d) one or more biasing electrodes, wherein each biasing electrode is defined as any electrode which is(d1) in electrical contact with the electrolyte plate,(d2) located on an area of the electrolyte plate such that the area has no cathode material on the opposite side thereof, and(d3) in electrical contact with the second electrically-conductive gas-impermeable interconnect.