Composite oxide, sintering body, solid electrolyte and manufacturing method thereof
A technology of composite oxide and solid electrolyte, which is applied in the field of solid electrolyte and its manufacture, composite oxide, and sintered body. It can solve the problems of reduced electrolyte stability, reduced output power, and obstacles to the practical use of solid electrolyte materials, and achieves high ionic strength. The effect of electrical conductivity and good reduction resistance
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[0063] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0064] In the present invention, "composite oxide" refers to cerium oxide (CeO 2 ) is doped with 1 or 2 kinds of rare earth elements. In cerium oxide, trivalent rare earth elements are solid-dissolved in the cerium oxide crystal lattice to partially replace tetravalent cerium (Ce) atoms to form lattice oxygen defects, thereby obtaining a composite oxide powder with oxygen ion conductivity. The average crystal grain diameter in the composite oxide powder of the present invention may be 5 to 50 nm. Using this composite oxide powder, a so...
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