Publication number: 20050202316
Abstract: Disclosed is a lithium secondary battery including a positive electrode comprising a combination of positive active materials. The combination includes a material represented by one or both of Formulae 1 and 2; and a material of Formula 3 as follows: LiaNibMncMdO2 ??(Formula 1) where 0.90?a?1.2; 0.5?b?0.9; 0<c<0.4; 0?d?0.2; LiaNibCocMndMeO2 ??(Formula 2) where 0.90?a?1.2, 0.5?b?0.9, 0<c<0.4, 0<d<0.4, and 0?e?0.2; LiaCoMbO2 ??(Formula 3) where 0.90?a?1.2 and 0?b?0.2; and each M of Formulae 1-3 is independently selected from the group consisting of 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, Tl, Si, Ge, Sn, P, As, Sb, Bi, S, Se, Te, Po, and combinations.
Type:
Application
Filed:
March 11, 2005
Publication date:
September 15, 2005
Inventors:
Duck-Chul Hwang, Geun-Bae Kim, Yong-Chul Park, Won-Il Jung, Jun-Won Suh, Jan-Dee Kim