Alkali metal titanates and methods for their synthesis

C - Chemistry – Metallurgy – 01 – G

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C01G 23/00 (2006.01) C30B 31/02 (2006.01) H01M 4/48 (2006.01)

Patent

CA 2654605

Disclosed is a doped lithium titanate and its use as an electrode in a battery. Further disclosed is a method for making an alkali metal titanate, which method includes mixing an alkali metal compound and a titanium compound, impact milling the mixture, and heating the milled mixture for a time, and at a temperature, sufficient to convert the mixture to the alkali metal titanate. The alkali metal compound can be in the form of Li2CO3 and the titanium compound can be in the form of TiO2. A dopant may be included in the mixture.

La présente invention porte sur un titanate de lithium dopé et sur son emploi en tant qu'électrode d'accumulateur. La présente invention porte également sur une méthode de fabrication d'un titanate de métal alcalin, ladite méthode incluant le mélange d'un dérivé de métal alcalin et d'un dérivé de titane, le broyage par impact du mélange, et le chauffage du mélange broyé pendant une durée déterminée et à une température déterminée, suffisantes pour convertir le mélange en titanate de métal alcalin. Le dérivé de métal alcalin peut être sous forme de Li2CO3 et le dérivé de titane peut être sous forme de TiO2. Un dopant peut être inclus dans le mélange.

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