Powdered lithium transition metal oxide having doped...

Details Powdered lithium transition metal oxide having doped... Powdered lithium transition metal oxide having doped...

C - Chemistry, Metallurgy

01

D

C01D 15/02 (2006.01) C01G 45/02 (2006.01) C01G 51/04 (2006.01)

Patent

CA 2577215

The present invention provides a powdered lithium transition metal oxide useful as a major component for cathode active material of rechargeable lithium batteries, comprising a lithium transition metal oxide particle, a doped interface layer formed near the surface of the particle, and a thermodynamically and mechanically stable outer layer, and a method of preparing the same.

L'invention concerne un oxyde de métal de transition au lithium en poudre utile en tant que composante principale d'un matériau actif de cathode de batteries au lithium rechargeables, comprenant une particule d'oxyde de métal de transition au lithium, une couche d'interface dopée formée à proximité de la surface de la particule, et une couche externe stable sur les plans thermodynamique et mécanique. L'invention concerne également un procédé de préparation de cet oxyde.

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