SOLID OXIDE ELECTROLYTE, SOLID OXIDE FUEL CELL CONTAINING THE SOLID OXIDE ELECTROLYTE, AND METHOD OF PREPARING THE SOLID OXIDE ELECTROLYTE

摘要

A solid oxide electrolyte including an oxygen ion conducting solid solution, wherein the solid solution is represented by Formula 1 below: Zr1-x-y-zMaxMbyMczO2-δ  Formula 1 wherein x is greater than 0 and less than about 0.3, y is greater than 0 and less than about 0.1, z is greater than 0 and less than about 0.1, δ is selected to make the solid solution ionically neutral, Ma, Mb, and Mc are each independently a metal selected from the group consisting of elements of Groups 3, Groups 5 through 13, and Group 14, and an ionic radius of each of Ma+3, Mb+3, and Mc+3 are different from each other.