PROCESS FOR THE PREPARATION OF FINELY DISPERSED LITHIUM TITANIUM SPINELS AND THEIR USE

The present invention relates to a process for the preparation of a mixture for producing lithium titanium spinel Li4Ti5O12, having the step of mixing Li2CO3 and TiO2 in a vessel (1) in which at least one oblong element (2) with a first end (2a) and a second end (2b) is arranged such that the first...

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Bibliographische Detailangaben
Hauptverfasser:	HOLZAPFEL MICHAEL, WENDRICH GENOVEFA, TRAN NICOLAS, BUSL STEFANIE, DOLLINGER JASMIN
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OFSOLID INORGANIC COMPOUNDS INORGANIC CHEMISTRY METALLURGY MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TRANSPORTING
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Beschreibung
Zusammenfassung:	The present invention relates to a process for the preparation of a mixture for producing lithium titanium spinel Li4Ti5O12, having the step of mixing Li2CO3 and TiO2 in a vessel (1) in which at least one oblong element (2) with a first end (2a) and a second end (2b) is arranged such that the first end (2a) points towards an inner wall (1a) of the vessel (1) and is at a distance d from same, wherein the mixing step is carried out by allowing the vessel (1) to rotate and holding the oblong element (2) in its position, with the result that a relative movement takes place between the inner wall (1a) of the vessel (1) and the first end (2a) of the oblong element (2), wherein the distance d is kept constant during mixing. In addition, the invention relates to a process for the preparation of lithium titanium spinel Li4Ti5O12 from a thus-obtained mixture and its use as anode material in rechargeable lithium-ion batteries.