Influence of lattice defects on the reactivity of lithium titanate

Abstract

7Li NMR spectroscopic experiments on Li2TiO3 demonstrate that the presence of planar crystal defects leads to lithium ion mobility in the temperature range of 30–100°C. Kinetics studies show the number of planar defects (and thus the rate of Li-H ion exchange) depends on the method and conditions of lithium titanate synthesis. The complete exchange of Li+ for H+ results in the formation of crystalline titanium oxyhydroxide TiO(OH)2 due to stabilization of defect state.