| 摘要 |
PROBLEM TO BE SOLVED: To provide a production method for obtaining a lithium manganese phosphate positive electrode material capable of expressing excellent battery physical properties, as the positive electrode material of a lithium ion battery.SOLUTION: In a method of producing a lithium manganese phosphate positive electrode material including a step of mixing a transition metal compound, a lithium compound and a phosphate compound containing at least a manganese compound, and subjecting a reaction mixture thus obtained to hydrothermal reaction, when the temperature of the reaction mixture is in a range of 60-210°C from start to the end of hydrothermal reaction, in a step of subjecting to hydrothermal reaction, the integrated value of the product of the time (minute) elapsed from start of the hydrothermal reaction and the temperature (°C) of the reaction mixture is 16000(min °C) or less. |
