At present, the ternary lithium battery and Lithium iron phosphate battery on the market are the two most prominent types of power lithium battery. There are still many concerns about which is stronger, which is weaker, and the strong performance of lithium batteries has also been recognized by many people. There are also a large number of projects for the production of lithium batteries. At this time, someone asked: then, which is better to analyze the ternary lithium battery and Lithium iron phosphate battery?
Which is better, ternary lithium battery or Lithium iron phosphate battery?
1. Price difference between ternary lithium battery and Lithium iron phosphate battery:
Since Lithium iron phosphate battery does not contain any precious metal materials, the price of raw materials can be compressed to be very cheap. The ternary lithium battery mainly uses lithium nickel cobalt manganate as the cathode material and graphite as the cathode material, so the cost is much higher than that of Lithium iron phosphate battery.
2. The service life of ternary lithium battery and Lithium iron phosphate battery is different:
If the remaining capacity/initial capacity=80% is used as the testing end point to detect:
The battery cycle life of Lithium iron phosphate battery pack is longer than that of lead-acid battery and ternary lithium battery. Our car navigation lead-acid batteries have a “long lifespan” of only about 300 times; In theory, the ternary lithium battery can reach 2000 times, and in practice, the capacity of about 1000 times will reach Attenuation coefficient of 60%; The real life of the Lithium iron phosphate battery is 2000 times. At this moment, there is still 95% capacity, and its concept battery cycle life is more than 3000 times.
3. The temperature adaptability of ternary lithium battery and Lithium iron phosphate battery is different:
Low temperature resistance:
Ternary lithium battery: Ternary lithium batteries have excellent low-temperature performance, and can maintain about 70% to 80% of the normal battery capacity under -20 ℃ conditions.
Lithium iron phosphate: not resistant to low temperature: when the temperature is lower than -10 ℃, the Attenuation coefficient of Lithium iron phosphate battery is very fast, and the Lithium iron phosphate battery can only maintain about 50%~60% of the normal battery power at -20 ℃.