METHOD FOR PRODUCING TETRAGONAL LITHIUM ZIRCONATE

摘要

This invention relates to a method for producing substantially tetragonal lithium zirconate with small crystallite sizes by preparation of an aqueous solution of zirconium oxynitrate, ZrO(NO3)2 and a water solvable lithium salt in a molar ratio of Li:Zr of 2, precipitate lithium zirconate, Li2ZrO3 by adding aqueous ammonia, NH3 to the solution, filtering the solution and recover the filter cake, drying the filter cake, and calcinate the filter cake until a dry powder of lithium zirconate is obtained.