Lithium metal oxides

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H01M 4/52 (2006.01) C01G 23/00 (2006.01) C01G 51/00 (2006.01) C01G 53/00 (2006.01) H01M 4/48 (2006.01) H01M 4/02 (2006.01) H01M 4/50 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2412601

Lithium metal oxide particles have been produced having average diameters less than about 100 nm. Composite metal oxides of particular interest include, for example, lithium cobalt oxide, lithium nickel oxide, lithium titanium oxides and derivatives thereof. These nanoparticles composite metal oxides can be used as electroactive particles in lithium or lithium ion batteries. Batteries of particular interest include lithium titanium oxide in the negative electrode and lithium cobalt manganese oxide in the positive electrode.

L'invention concerne des particules d'oxyde de métal lithium qui ont été produites avec un diamètre inférieur à environ 100 nm. Les oxydes de métal composite présentant un intérêt particulier comprennent, par exemple, de l'oxyde de cobalt et de lithium, de l'oxyde de nickel et de lithium, des oxydes de titane et de lithium et des dérivés de ces derniers. Ces oxydes de métal composite formant nanoparticules peuvent être utilisées comme particules électroactives dans des batteries au lithium ou lithium-ion. Les batteries particulièrement intéressantes comprennent de l'oxyde de titane et de lithium dans l'électrode négative et de l'oxyde de manganèse, de cobalt et de lithium dans l'électrode positive.

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