| 摘要 |
Disclosed is a positive electrode active material for lithium-ion batteries that has excellent battery characteristics. The positive electrode active material for lithium-ion batteries is represented by the composition formula Li(LixNi1-x-yMy)O2+a (in the formula, M is Co (as an essential component) and one or more elements selected from Sc, Ti, V, Cr, Mn, Fe, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B and Zr, with 0 = x = 0.1, 0 < y = 0.7, and a > 0), and has an average particle diameter (D50) of 5-15 µm. |
