| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive electrode active material for an alkali ion secondary battery, which is high in energy density and superior in charge and discharge characteristics.SOLUTION: A positive electrode active material for an alkali ion secondary battery comprises 20-55% of NaO+LiO, 10-60% of CrO+FeO+MnO+CoO+NiO, and 20-55% of PO+SiO+BOin units of mol% in terms of oxide. Further, the positive electrode active material includes amorphous phases by 50 mass% or more.SELECTED DRAWING: None |
