LITHIUM COBALTATE FOR LITHIUM SECONDARY BATTERY AND ITS MANUFACTURE

摘要

PROBLEM TO BE SOLVED: To provide lithium cobaltate for a lithium secondary battery with excellent battery cycle characteristics and its manufacturing method. SOLUTION: This lithium cobaltate for a lithium secondary battery is characterized by having a Karl-Fischer water content <=0.06 wt.% at 300 deg.C and a nickel content <=0.03 wt.%. The lithium cobaltate is obtained by mixing and then baking a material containing a total <=0.05 wt.% nickel.