| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive electrode active material used in a hybrid ion battery of Li ion and Na ion, and operating with a high potential.SOLUTION: A positive electrode active material for use in a hybrid ion battery of Li ion and Na ion contains NaM(PO)POcrystalline phase (M is at least one kind of Ni, Co, Mn, Fe, V, Cr, Cu and Zn). |
