Is the lithium iron phosphate used for the takeaway electric car better or the ternary lithium ion battery?

Lithium iron phosphate battery has good safety performance and long cycle life. Experiments have confirmed that after 1600 charge-discharge cycles, the lithium iron phosphate battery can still have 80% charge. Moreover, the performance of lithium iron phosphate batteries is very stable during high-power discharge. We often encounter such a situation: during rapid acceleration or high-speed driving, the battery needs to be discharged with high power, and in this process, a stable voltage can make the car have better performance. When high-power discharge, the actual capacity of the battery will be reduced, which is one reason why the high-speed cruising range of electric vehicles will be reduced, and the performance of the lithium iron phosphate battery in terms of stability is very prominent. Another advantage of lithium iron phosphate is that it is safer. It can withstand high temperatures of 700-800 degrees, and will not release oxygen molecules in extreme forms such as puncture, impact, and short circuit, so it will not burn and explode violently. For this reason, BYD still uses lithium iron phosphate batteries in passenger cars with larger passenger capacity. However, lithium iron phosphate batteries also have two shortcomings that cannot be ignored: one is relatively low energy density, heavier, and larger; the other is sensitive to temperature. In a low temperature environment, the charge level will be significantly reduced. Because the energy density cannot meet the national requirement of 150 watt-hours/kg, it is not suitable for large-scale use in cars. Because the country has promoted the passenger car field in terms of policies, various car companies have promoted or replaced ternary lithium-ion batteries. Even BYD, which has previously mastered the advantages of lithium iron phosphate technology, is gradually converting the power lithium batteries used in its models into ternary lithium. This type includes: Tang, Qin, Tengshi and so on. Although the current Tengshi ternary lithium-ion battery is not yet on the market, there is news that the next round of new products will use ternary lithium-ion batteries. Including the Japanese Accord and Camry hybrid versions, the current best-selling models also use ternary lithium-ion batteries. After the use of ternary lithium, due to the obvious increase in energy density, the volume of the battery is reduced, and the weight is reduced, which frees up more practical space for the passenger compartment or luggage compartment. Therefore, on the whole, ternary lithium-ion batteries have greater advantages in the current policy environment. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.