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

Disclosed is a compound having the olivine structure with which batteries having high capacity, high output, and excellent high rate performance may be produced, as well as a cathode for nonaqueous electrolyte rechargeable batteries produced with this compound, and a nonaqueous electrolyte rechargeable battery provided with this cathode. The present compound is LiFePO4 and the like, which contains at least lithium, a transition metal, phosphorus, and oxygen; has the olivine structure; hardly contains a crystal phase other than the olivine phase; and has a specific surface area of not smaller than 4 m2/g; and is useful as a cathode active material of nonaqueous electrolyte rechargeable batteries.