Composite materials of nano-dispersed silicon and tin and...

C - Chemistry – Metallurgy – 01 – D

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C01D 15/02 (2006.01) C01D 15/00 (2006.01) C25B 11/04 (2006.01) H01M 4/38 (2006.01)

Patent

CA 2558804

Composite compounds of tin and lithium, silicon and lithium, or tin, silicon, and lithium having tin and silicon nano-dispersed in a lithium-containing matrix may be used as electrode materials and particularly anode materials for use with rechargeable batteries. Methods of making the composite compounds include the oxidation of alloys, the reaction of stabilized lithium metal powder with tin and silicon oxides, and the reaction of inorganic salts of lithium with tin and silicon containing compounds.

L'invention concerne des composés composites d'étain et de lithium, de silicium et de lithium ou d'étain, de silicium et de lithium dont l'étain et le silicium sont nano-dispersés dans une matrice renfermant du lithium, ces composés pouvant être utilisés comme matériaux d'électrode et, notamment, matériaux d'anode à utiliser avec des batteries rechargeables. L'invention concerne également des procédés de fabrication des composés composites consistant à oxyder des alliages, à faire réagir de la poudre de métal lithium stabilisée avec des oxydes d'étain et de silicium et à faire réagir des sels inorganiques de lithium avec des composés renfermant de l'étain et du silicium.

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