Lithium iron phosphate power battery pack is a lithium ion battery with lithium iron phosphate as cathode material. Lithium iron phosphate crystal has stable chemical properties. In practical use, it will not burn or explode even when charging is outdated or at high temperature. The maximum cycle life of lead-acid battery can reach 500 times, while the cycle life of lithium iron phosphate power battery can reach more than 2000 times, which is far more than that of lead-acid battery.
The depreciation rate of lead-acid battery is very fast and needs continuous maintenance. The longest service life is no more than one and a half years. In contrast, the service life of lithium iron phosphate power battery pack can reach 7 years under the same conditions. Lithium iron phosphate battery can adapt to a wide range of working temperatures, and its electric heating peak can reach 350 ℃ - 500 ℃. Compared with ordinary lead-acid battery, its energy storage capacity is stronger, and its material is relatively light.
Lithium iron phosphate power battery pack does not contain any rare earth metals and heavy metals and has no pollution to the environment. It is a new type of green battery. However, lithium iron phosphate battery also has its own shortcomings, such as poor performance in low temperature environment and larger volume than lead-acid battery under the same conditions. Therefore, there must be a great lack in the development of micro battery.
As a rechargeable lithium battery, lithium iron phosphate power battery pack has stable output voltage, high output voltage, stable performance, large capacity, long service life, wide working temperature range, good safety and environmental protection and no pollution. Therefore, it has a lot of room for improvement on the development road of lithium battery in the future, but it still needs continuous research in order to improve its own defects.