| 摘要 |
The present invention provides a positive electrode active material for a non-aqueous electrolyte secondary battery and a non-aqueous electrolyte secondary battery having the positive electrode active material. The positive electrode active material includes a complex oxide wherein said complex oxide is substantially amorphous and comprises Mn and M; where M is selected from the group consisting of Ni, Co, Fe, Cu, Al, Mg, Si, Sc, Ti, Zn, Ga, Ge, Nb, Rh, Pd and Sn; and the molar weighted sum of oxidation states of elements except for oxygen is more than 3.8 and not greater than 4.2. More preferably, a mole ratio of Mn and M (Mn:M) is in a range of 99:1~70:30.
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