| 摘要 |
An electrochemical cell comprising a reducing side (i.e. side of cell exposed to gases of lower oxygen potential than the opposing side) support structure containing Ni/NiO and stabilized zirconia, a reducing side electrode structure, an electrolyte structure, which consists of at least one layer and which is substantially gas-tight after heating, an oxidant side electrode (i.e. side of cell exposed to gases of higher oxygen potential than the reducing side) first material and an oxidant side electrode second material or group of materials having some degree of electronic conductivity is prepared by a process comprising (a) establishing several layers, either by tape casting together or by repeated tape casting procedures or by use of a slot die system, (b) laminating any components or subassemblies from a) to form the required unfired 4-layer structure, which includes a support, a reducing electrode structure, an electrolyte structure and a oxidant electrode first structure (originating from a standard tape casting), (c) sintering of the assembled four layers of the cell, (d) one or more infiltrations of the oxidant electrode first structure with a liquefied substance, i.e. salt solutions or molten salts, to obtain the oxidant electrode second material or group of materials, and (e) optionally a final heat treatment at a temperature above the operational temperature. |
