| 摘要 |
The present invention provides a positive electrode active material for lithium ion batteries having excellent battery property. The positive electrode active material for lithium ion batteries is represented by composition formula: Li x Ni 1-y M y O 2+a , wherein
M is Co as an essential component and at least one species selected from a group consisting of Sc, Ti, V, Cr, Mn, Fe, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B and Zr, 0.9‰¦x‰¦1.2, 0<y‰¦0.7, a>0.05, and
an average particle size (D50) is 5µm to 15µm. |
