POSITIVE ELECTRODE MATERIAL AND PREPARATION METHOD THEREOF, POSITIVE ELECTRODE PLATE, BATTERY AND APPARATUS

Provided are a positive electrode material, a preparation method thereof, a positive electrode plate, a battery and an apparatus. The positive electrode material includes a positive electrode active substance, the positive electrode active substance including a first component and a second component. The heat stability of the first component is higher than that of the second component, and the positive electrode material meets the following formula: