Particles containing compound having olivine structure, method for producing the same, positive electrode for non-aqueous electrolyte secondary battery, non-aqueous electrolyte secondary battery

摘要

A compound having an olivine structure capable of producing a battery with high capacity, high output and excellent rate characteristics, a positive electrode for a non-aqueous electrolyte secondary battery produced using this compound, and a non-aqueous electrolyte provided with this positive electrode A secondary battery is provided. The compound of the present invention contains at least lithium, a transition metal, phosphorus, and oxygen, has an olivine structure, contains almost no crystal phase other than the olivine structure, has a specific surface area of 4 m 2 / g or more, such as LiFePO 4 It is a compound and is useful as a positive electrode active material for non-aqueous electrolyte secondary batteries.