Verfahren zur Herstellung einer positiven Elektrode für Lithium-Sekundärbatterien

摘要

A lithium-manganese oxide LixMn2O4 having a spinel structure as cathode material for secondary lithium batteries is obtained by mixing manganese dioxide with lithium formate and/or lithium acetate (HCOOLi, CH3COOLi) and subsequently heating the mixture for 10 to 100 hours at preferably 600 DEG C to 750 DEG C. The mixture components contain manganese and lithium in a molar ratio Mn : Li = 2: x, where 0.5 < x < 1.5. The end product is extremely finely crystalline and is distinguished by good cycle stability.