LAYERED AND SPINEL LITHIUM TITANATES AND PROCESSES FOR PREPARING THE SAME

摘要

The present invention relates to a process for producing lithium titanate which includes the steps of synthesizing a lithium titanate hydrate intermediate via The present invention relates to a process for producing lithium titanate which includes the steps of synthesizing a lithium titanate hydrate intermediate via aqueous chemical processing, and thermally treating the lithium titanate hydrate intermediate to produce the lithium titanate. The lithium titanate hydrate is preferably (Li1.81Ho.19)Ti20.«2H20. The lithium titanate is preferably Li4Ti5012 (LTO). Synthesizing the lithium titanate hydrate intermediate may include mixing a titanium-containing compound with a lithium- containing compound in a solvent to produce a lithium-titanium precursor mixture. Preferably the titanium-containing compound comprises titanium tetrachloride TiCI4. The invention also relates to a lithium titanate obtained according to the process and a lithium battery comprising the lithium titanate.