What is the difference in performance between lithium iron phosphate battery pack and ternary lithium ion battery?

Performance comparison between lithium iron phosphate battery pack and ternary lithium ion battery The so-called lithium iron phosphate battery refers to a lithium ion battery that uses lithium iron phosphate as the positive electrode material. The characteristic of this type of battery is that it does not contain precious metal elements (such as cobalt, etc.). Because it does not contain precious metal materials, the raw material cost of lithium iron phosphate batteries can be compressed very low. Lithium iron phosphate battery pack has the advantages of high temperature resistance, strong safety and stability, low price and better cycle performance. 1. Comparison of energy density and cruising range. Compared with lithium iron phosphate battery packs, ternary lithium-ion batteries have higher energy density and higher voltage, so the battery pack with the same weight has a larger battery capacity and a longer distance for the car. Far, the speed can also be faster. The Tesla ModelS has a cruising range of more than 400 kilometers. BAIC EV200 uses a ternary lithium-ion battery processed by SK Korea, with a theoretical cruising range of 200km, while its predecessor EV150 uses a lithium iron phosphate battery with a cruising range of only 150km. 2. Comparison of space occupancy Regarding bulky electric buses, the space occupancy has less impact. But for household electric vehicles, the space occupation becomes more important. Lithium iron phosphate battery packs with lower energy density will occupy a small amount of car space, and due to the greater weight, the discharge life during use will also be greatly affected. Relatively speaking, the ternary lithium-ion battery with higher energy density saves space for family cars while dealing with the weight problem. 3. Comparison of low-temperature discharge performance is based on normal temperature at 25°C. The discharge capacity of the two types of batteries is almost the same when discharged at a high temperature of 55°C and at a normal temperature of 25°C. But at minus 20°C, ternary lithium-ion batteries have clear advantages compared with lithium iron phosphate battery packs. 4. Charging efficiency comparison In addition to battery life, charging is also an important part of the actual use of electric vehicles, and ternary lithium-ion batteries have great advantages over lithium iron phosphate battery packs in terms of charging efficiency. When the ternary lithium-ion battery and the lithium iron phosphate battery are charged under 100 Ah, there is no clear difference in the constant current ratio. When the battery is charged above 100 Ah, the constant current ratio of the lithium iron phosphate battery decreases rapidly, and the charging efficiency decreases rapidly.