Composite precursor, composite prepared therefrom, a method of preparing a composite precursor and a composite, positive electrode for lithium secondary battery including the same, and lithium secondary battery employing the same

摘要

A composite precursor represented by Formula 1, a composite prepared therefrom represented by Formula 2, a method of preparing a composite precursor and a composite, a positive electrode for lithium secondary battery including the same, and a lithium secondary battery employing the same.aMn₃O₄-bM(OH)₂  Formula 1wherein in Formula 1, 0a≦0.8, 0.2≦b1and M is at least one metal selected from the group consisting of titanium (Ti), vanadium (V), chromium (Cr), manganese (Mn), iron, (Fe), cobalt (Co), nickel (Ni), copper (Cu), aluminum (Al), magnesium (Mg), zirconium (Zr), and boron (B)aLi₂MnO₃-bLi_yMO₂  Formula 2wherein in Formula 2, 0≦a≦0.6, 0.4≦b≦11.0≦y≦1.05,and M is at least one metal selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Al, Mg, Zr, and B.