POSITIVE ELECTRODE ACTIVE MATERIAL AND LITHIUM-ION BATTERY

Disclosed in the present disclosure is a positive electrode active material and a lithium-ion battery, the positive electrode active material comprising lithium iron phosphate coated with carbon layer, and an ID/IG value of the positive electrode active material is 0.75-1.2, wherein a peak intensity at a wave number of 1360 cm-1 is considered as ID and a peak intensity at a wave number of 1580 cm-1 is considered as IG in a Raman spectrum of the positive electrode active material.