| 摘要 |
There is provided a novel positive electrode active material for a secondary battery. A positive electrode active material for a secondary battery according to the present exemplary embodiment is represented by the following formula (I): Li a (Ni x Cr y Mn 2-x-y-z M1 z )O 4 (I) wherein 0 < x, 0< y, 0 < z, x + y + z < 2, and 0 ‰¤ a ‰¤ 2; and M1 contains at least one selected from the group consisting of Na and Mg. A positive electrode for a secondary battery according to the present exemplary embodiment has the positive electrode active material for a secondary battery according to the present exemplary embodiment. A method for manufacturing a secondary battery according to the present exemplary embodiment includes the steps of applying the positive electrode active material for a secondary battery according to the present exemplary embodiment on a positive electrode current collector to thereby fabricate a positive electrode for a secondary battery; and assembling the secondary battery by using the positive electrode for a secondary battery. |
