| 摘要 |
The purpose of the present invention is to obtain a positive electrode material that can be used to achieve a lithium ion secondary battery that is safe and has high capacity. The positive electrode material of the present invention provides a positive electrode that is safe and has high capacity by employing the positive electrode active material represented by the following compositional formula: xLi2MnO3-(1-x)LiNiaMnbCocMdO2 (O.3<=x<=0.7, 0.33<=a<=0.5, 0<=b<=0.5, 0<=c<=0.33, 0.01<=d<=0.06). |
