POSITIVE ELECTRODE PLATE, SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND POWER CONSUMING DEVICE

The present application provides a positive electrode plate, a secondary battery, a battery module, a battery pack and a power consuming device, including a current collector, a first positive electrode active material layer and a second positive electrode active material layer, wherein the second positive electrode active material layer is arranged between the current collector and the first positive electrode active material layer, or the first positive electrode active material layer is arranged between the current collector and the second positive electrode active material layer; the first positive electrode active material layer comprises a first positive electrode active material, a first binder and a first conductive agent; the second positive electrode active material layer comprises a second positive electrode active material, a second binder and a second conductive agent, wherein the second positive electrode active material is selected from carbon-coated LiFeMPO, and the second positive electrode active material has a diffraction peak A between 29° and 30° in the X-ray diffraction pattern, and a diffraction peak B between 25° and 26°, and the intensity ratio I/I of the diffraction peaks satisfies: 0.98 ≤ I/I ≤ 1.1. The lithium ion battery of the present application has good low temperature performance.