| abstract |
The present invention relates to a lithium secondary battery positive electrode, and a lithium secondary battery comprising the same, wherein the lithium secondary battery positive electrode is formed on a current collector and the current collector, and the compound core of Formula 1 and a surface treatment layer formed on the core It includes a positive electrode active material layer containing a positive electrode active material comprising a. The surface treatment layer includes P as the first element, Mg, Ca, Sr, Ba, Ra, Sc, Y, Ti, Zr, Hf, Rf, V, Nb, Ta, Db, Cr, Mo, W, Sg, Tc, Re, Bh, Fe, Ru, Os, Hs, Rh, Ir, Pd, Pt, Cu, Ag, Au, Zn, Cd, B, Al, Ga, In, Ti, Si, Ge, Sn, P, As, Sb, Bi, S, Se, Te, Po, and a compound containing a second element selected from the group consisting of these.n n n [Formula 1]n n n Li a Co 1 - b M b O 2 n n n (In Formula 1, 0.95≤a≤1.1, 0.002≤b≤0.02, M is Mg, Ca, Sr, Ba, Ra, Sc, Y, Ti, Zr, Hf, Rf, V, Nb, Ta, Db, Cr, Mo, W, Sg, Tc, Re, Bh, Fe, Ru, Os, Hs, Rh, Ir, Pd, Pt, Cu, Ag, Au, Zn, Cd, B, Al, Ga, In, Is a third element selected from the group consisting of Tl, Si, Ge, Sn, P, As, Sb, Bi, S, Se, Te, Po, and combinations thereof.)n n n n Anode, Coating Layer, Doping, High Voltage, High Mix, Thermal Safety |