METHOD OF PRODUCING LITHIUM TITANATE Russian patent published in 2014 - IPC C01G23/04 C01D15/02 H01M4/48 

FIELD: chemistry.

SUBSTANCE: invention can be used in making lithium cells used in rechargeable batteries. Lithium titanate of formula Li₄Ti₅O_12-x, where 0<x<0.02, is obtained by preparing a mixture of titanium oxide and a lithium-based component, wherein the lithium-based component and titanium oxide are present in the obtained mixture in amounts required to provide atomic ratio of lithium to titanium of 0.8. The lithium-based component includes lithium carbonate powder and lithium hydroxide powder. The obtained mixture is used as a calcination precursor. Further, the mixture is sintered in a gaseous atmosphere containing a reducing agent to form lithium titanate. The sintering step causes a solid-phase reaction between the lithium carbonate powder and titanium oxide and a liquid-solid-phase reaction between lithium hydroxide powder and titanium oxide.

EFFECT: invention enables to obtain lithium titanate having high electron conductivity and electrochemical capacitance.

9 cl, 13 dwg, 2 tbl