Layered and spinel lithium titanates and processes for preparing the same
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United States of America Patent
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Nov 21, 2017
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Oct 10, 2013
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Oct 10, 2012
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Abstract
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 (Li1.81H0.19)Ti2O<<2H2O. The lithium titanate is preferably Li4Ti5O12 (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 includes titanium tetrachloride TiCl4. Also, a lithium titanate obtained according to the process and a lithium battery including the lithium titanate.
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