Ternary LixTiO2 phases from insertion reactions
Lithium insertion reactions in the various close packed TiO2 frameworks is discussed. Preliminary neutron diffraction powder profile analysis data is presented for the lithium inserted anatase Li0.5TiO2, the spinel LiTi2O4, and the lithiated spinel Li2Ti2O4. A simple model based on minimizing cation repulsion is used to rationalize the structures and diffusion of lithium.