Carbon-coated lithium titanium spinel
AssigneeSued-Chemie IP GmbH & Co. KG
InventorsJasmin Dollinger, Andreas Pollner, Michael Holzapfel, Nicolas Tran, Norbert Schall, Max Eisgruber
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Abstract
A carbon-containing lithium titanium oxide containing spherical particle aggregate with a diameter of 1-80 μm, consisting of lithium titanium oxide primary particles coated with carbon. Also, a method for the production of such a carbon-containing lithium titanium oxide as well as an electrode containing such a carbon-containing lithium titanium oxide as active material as well as a lithium-ion secondary battery containing an above-described electrode.
Claims14
A method for the production of a calcined carbon-containing lithium titanium oxide-containing spherical particle aggregates with a diameter of from 1 to 80 μm, comprising the steps of:
- (a) mixing (1) a lithium salt, LiOH or Li2O, (2) a titanium oxide and (3) a carbon-containing compound in a solvent;
- (b) drying the mixture from step a);
- and
- (c) calcining the dried mixture,
- wherein the drying is carried out as spray drying.
Dependencies are inferred from the claim text.