High performance lithium titanium spinel Li4Ti5012 for electrode material
AssigneeAltairnano, Inc.
InventorsTimothy Spitler, Jan Prochazka, Ladislav Kavan, Michael Graetzel, François Sugnaux
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Abstract
The invention concerns a process for producing a spinel compound of formula Li4Ti5O12, comprising a step of preparing a mixture of an organo-lithium compound selected from lithium alcoholates with an organo-titanium compound selected from titanic acid esters, in a liquid medium, and a step of hydrolyzing the mixture of said compounds. The invention also concerns a Li4Ti5O12 particulate material which may be produced according to the previous cited process and which has a BET surface area of at least 10 m2/g. The material is particularly useful in the manufacture of Lithium Ion batteries.
Claims6
A process for manufacturing a thin film electrode comprising:
- a) providing a conductive support;
- and
- b) coating the conductive support with a Li4Ti5O12 spinel material, wherein the Li4Ti5O12 spinel material is formed by:
- 1) preparing, in a liquid medium, a mixture comprising (i) a lithium alcoholate and (ii) a titanic acid ester;
- and
- 2) hydrolyzing the mixture.
Dependencies are inferred from the claim text.