| 摘要 |
A cathode active material includes: (a) first oxide including (1) lithium (Li), nickel (Ni) and manganese, (2) a first element MI selected from Group 2 to Group 14 elements, and (3) oxygen; (b) a second oxide including (1) lithium, (2) a second element MII including nickel and cobalt, (3) manganese, (4) a third element including at least one of the elements of Group 2 to Group 14 elements, except for nickel, cobalt and manganese, and (5) oxygen.
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