1. Range of energy density
The energy density of lithium iron phosphate battery is usually between 120 and 200Wh/kg. However, with the continuous advancement of technology, the energy density of some high-performance lithium iron phosphate batteries has approached or exceeded 200Wh/kg. For example, the energy density of the Shenxing PLUS battery system launched by CATL has reached 205Wh/kg, breaking the energy density record of lithium iron phosphate battery.
2. Comparison with ternary lithium batteries
Compared with ternary lithium batteries, the energy density of lithium iron phosphate battery still has a certain gap. The energy density of ternary lithium batteries is usually between 150 and 300Wh/kg, and some high-end models have even exceeded 300Wh/kg. This allows electric vehicles equipped with ternary lithium batteries to have a longer range. However, lithium iron phosphate batteries have certain advantages in safety, cycle life and cost, so they are still widely used in many application scenarios.
3. Challenges and prospects of improving energy density
Although the energy density of lithium iron phosphate battery has been improved, there are still some challenges to further improve its energy density. This includes the improvement of positive electrode materials, optimization of electrolytes, and innovation of battery structure. However, with the rapid development of the new energy vehicle industry and the continuous advancement of battery technology, the energy density of lithium iron phosphate battery is expected to be further improved in the future. This will help improve its range and competitiveness and meet the needs of more application scenarios.
In summary, although the energy density of lithium iron phosphate battery is relatively low, it has been significantly improved in recent years. With the continuous advancement of technology and the rapid development of the new energy vehicle industry, the energy density of lithium iron phosphate battery is expected to be further improved to meet the needs of more application scenarios.
