| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery high in capacity and superior in charge and discharge cycle characteristics.SOLUTION: A positive electrode active material is in the form of particles and to be used for a nonaqueous electrolyte secondary battery. The positive electrode active material comprises: a LiMnO-LiMOsolid solution (M represents at least one selected from Co, Ni, Fe, Al, Mg, Ti, Cr, Zr, W, B, Nb, Sr, La, Ce, Sm and Mo); and a Ni-containing oxide. The ratio of Ni to Mn (Ni/Mn) on the particle surface is higher than that in the particle.SELECTED DRAWING: Figure 1 |
