| 摘要 |
PROBLEM TO BE SOLVED: To provide a positive electrode active material for a secondary battery capable of effectively suppress moisture adsorption to obtain a high performance lithium ion secondary battery or a sodium ion secondary battery and a manufacturing method of the same.SOLUTION: The positive electrode active material for a secondary battery is made of a compound material containing an oxide, containing at least iron or manganese, represented by a formula (A): LiFeMnMPO, a formula (B): LiFeMnNSiO, or a formula (C): NaFeMnQPOand carbon derived from cellulose nanofiber, to which a metal fluorite of 0.1 to 5 mass% is carried.SELECTED DRAWING: None |
