POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, AND LITHIUM ION SECONDARY BATTERY

Japanese Patent JP2023083719

A

To provide a lithium iron manganese phosphate-based positive electrode active material having an olivine structure, capable of achieving an improvement in battery characteristics of a lithium ion secondary battery.SOLUTION: Provided is a positive electrode active material represented by LiaMnbFecTidD1ePfFgOh (D1 represents a metallic element, and a, b, c, d, e, f, g, and h satisfy 0