Lithium-Ion conducting oxides: Synthesis, structure, and electroconducting properties

The properties of perovskite type ABO3 lithium-ion conducting oxides based on lanthanum lithium titanate (La,Li)TiO3, lanthanum lithium niobate and tantalate, and Li5La3M 2O12 (M = Nb, Ta) garnets were considered. Approaches to modification of the properties of these oxides, as well as the charge-compensation mechanisms associated with nonisovalent doping were discussed. Special consideration was given to phase formation and crystal structure in relation to the composition and preparation conditions of the oxides. © 2009 Pleiades Publishing, Ltd.