H. C. Starck Gmbh & Co

Wolfgang Schweda

Juliane Meese-Marktscheffel

Viktor Stoller

Ricarda Leiberich

Josef Schmoll

Christoph Schild

Daniel Gordon Duff

Wolfgang Kummer

Ulrich Krynitz

Evelyn Pross

Mathias Benz

The invention relates to a method for producing lithium-transition metal mixtures of general formula Li(MM)O, wherein Mrepresents nickel, cobalt or manganese, Mrepresents chromium, cobalt, iron, manganese, molybdenum or aluminium, and is different from M, n is 2 if Mrepresents manganese and is 1 otherwise, x is comprised between 0.9 and 1.2, y is comprised between 0.5 and 1.0 and z is comprised between 1.9 and 2.1. According to the inventive method, an intimate mixture composed of transition metal compounds containing oxygen and of a lithium compound containing oxygen is calcinated, said mixture being obtained by processing a solid powder transition metal compound with a solution of said lithium compound, and then drying. At least the Mcompound is used in powder form having a specific surface of at least 20 m/g (BET) and calcination is carried out in a fluidised bed.

Method for producing lithium-transition metal mixtures

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Munich, Georgia

Wolfgang Schweda