COMPOSITE PRECURSOR, COMPOSITE PREPARED THEREFROM, METHOD OF PREPARING THE COMPOSITE, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING THE COMPOSITE, AND LITHIUM SECONDARY BATTERY EMPLOYING THE POSITIVE ELECTRODE

摘要

A composite precursor is represented by Formula 1, and includes primary particles having an average particle diameter of about 1 nm to about 10 nm. A composite is prepared from the composite precursor. A method of preparing the composite includes mixing the composite precursor with a lithium compound to obtain a mixture, and thermally treating the mixture to obtain the composite. A positive electrode for a lithium secondary battery includes the composite, and a lithium secondary battery includes the positive electrode. NiaMnbCocMd(CO3)2 Formula 1