Johnson Matthey Public Limited Company

Johnson Matthey Inc.

Sued-chemie IP Gmbh & Co. Kg

Süd-chemie IP Gmbh & Co Kg

Andreas Laumann

Michael Holzapfel

Stefanie Rudenko

Manuel Pfanzelt

Gerhard Nuspl

Christian Vogler

Guoxian Liang

Florian Kiefer

Peter Bauer

Karl Fehr

Genovefa Wendrich

Holzapfel Michael

The present invention relates to a composite oxide with x wt.-parts LiTiO, preferably in its cubic modification of space group Fm-3m, t wt.-parts TiO, z wt.-parts of LiCOor LiOH, u wt.-parts of a carbon source and optionally v wt.-parts of a transition or main group metal compound and/or a sulphur containing compound, wherein x is a number between 2 and 3, y is a number between 3 and 4, z is a number between 0.001 and 1, u is a number between 0.05 and 1 and 0&#x2264;v&#x3c;0.1 and the metal of the transition or main group metal compound is selected from Al, Mg, Ga, Fe, Co, Sc, Y, Mn, Ni, Cr, V or mixtures thereof. Further the present invention relates to the use of the composite oxide in a process for the preparation of a composition of a non-doped and doped lithium titianate LiTiOcomprising secondary agglomerates of primary particles and its use as anode material in secondary lithium-ion batteries.

Process for the preparation of lithium titanium spinel and its use

A composite oxide with x wt.&#x2014;parts LiTiO, preferably in its cubic modification of space group Fm-3m, y wt.&#x2014;parts TiO, z wt.&#x2014;parts of LiCOor LiOH, u wt.&#x2014;parts of a carbon source and optionally v wt.&#x2014;parts of a transition or main group metal compound and/or a sulphur containing compound, wherein x is between 2 and 3, y is between 3 and 4, z is between 0.001 and 1, u is between 0.05 and 1 and 0&#x2264;v&#x3c;0.1 and the metal of the transition or main group metal compound is selected from Al, Mg, Ga, Fe, Co, Sc, Y, Mn, Ni, Cr, V or mixtures thereof. Also, a process for the preparation of a composition of non-doped and doped lithium titanate LiTiO, including secondary agglomerates of primary particles, using the composite oxide and its use as anode material in secondary lithium-ion batteries.

The present invention relates to a nanoparticulate composition comprising nanoparticles with a particle-size distribution of d&#x2266;10 &#x3bc;m, and optionally a surface-active agent. The present invention further relates to a method for the production of such a nanoparticulate composition.

Nanoparticulate composition and method for its production

Non-doped and doped lithium titanate Li4Ti5O12 obtainable by the thermal reaction of a stoichiometric composite oxide containing Li2TiO3 and TiO2, the preparation of the stoichiometric composite oxide, as well as a process for the preparation of lithium titanate Li4Ti5O12 and its use as anode material in rechargeable lithium-ion batteries.

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Munich, Germany

Andreas Laumann