| 摘要 |
A positive electrode of a nonaqueous electrolyte solution secondary battery comprises (A) a lithium-manganese composite oxide and (Bl) at least one lithium-nickel composite oxide which has a specific surface area X of 0.3 .ltoreq. X(m2/g) and which is selected from a group consisting of LiNiO2, and LiNi1-x M x O2 (0 < .times. 0.5 is satisfied, and M represents at least one metal element selected from a group consisting of Co, Mn, Al, Fe, Cu and Sr), whereby it is possible to obtain a nonaqueous electrolyte solution secondary battery which is superior in battery properties, especially charge and discharge cycle properties, retention properties and safety. |
