Li4Ti5O12, Li(4-α)ZαTi5O12 or Li4Z Ti(5- O12 particles, processes for obtaining same and use as electrochemical generators

A process for synthesizing particles of an oxide corresponding to a formula selected from: Li4Ti5O12; Li(4-α)Z Ti5O12; and Li4ZαTi(5- )O12, said process including the steps of: a) preparing an intimately dispersed ternary mixture of TiOx-LiZY-carbon, wherein x is a number between 1 and 2, z is 1 or...

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Bibliographische Detailangaben
Hauptverfasser:	GUERFI ABDELBAST, ZAGHIB KARIM, GAUTHIER MICHEL, BROCHU FERNAND, MASSE MONIQUE, ARMAND MICHEL
Format:	Patent
Sprache:	eng
Schlagworte:	APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ELECTRICITY INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPRAYING OR ATOMISING IN GENERAL TRANSPORTING
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Beschreibung
Zusammenfassung:	A process for synthesizing particles of an oxide corresponding to a formula selected from: Li4Ti5O12; Li(4-α)Z Ti5O12; and Li4ZαTi(5- )O12, said process including the steps of: a) preparing an intimately dispersed ternary mixture of TiOx-LiZY-carbon, wherein x is a number between 1 and 2, z is 1 or 2, Y is a radical chosen from the group consisting of CO3, OH, O and TiO3 or a mixture thereof, and the carbon is a carbon powder selected from the group consisting of natural or artificial graphite, carbon black, Shawinigan black, Ketjen black and cokes; b) heating the dispersion at a temperature of between 400 and 1,000° C.; and c) if appropriate, adding a source of at least one metal Z to the ternary mixture, wherein the operating conditions are chosen in such a way as to yield a conversion of the initial products respectively into Li4Ti5O12, Li(4-α)ZαTi5O12, Li4Z Ti(5- )O12.