Advantages of LiFePO4 battery pack energy storage systems
1.The lithium iron phosphate battery has a long life. Cycle life of more than 2000 times, 3C cycle life of more than 800 times. Under the same conditions, lithium iron phosphate batteries can be used for 7 to 8 years.
2.Safe to use. Lithium iron phosphate battery after strict safety testing, even in a violent collision will not produce an explosion.
3.Fast charging. Using a special charger, 1.5C charging 40 minutes that can make the battery full, starting current up to 2C.
4.Lithium iron phosphate battery high-temperature resistance. Lithium iron phosphate battery thermal peak can reach 350 to 500 degrees Celsius, a wide range of operating temperatures (-20 ~ +75 ℃), high temperature (60 ℃).
5.Lithium iron phosphate batteries have a large capacity. Energy density is 3 to 4 times that of lead-acid batteries, 2.5 times that of nickel-cadmium batteries, and 1.8 times that of nickel-metal hydride batteries.
6.Lithium iron phosphate battery pack no memory effect. No matter what state the battery is in, it can be used as you go, no need to put it completely before charging.
Disadvantages of LiFePO4 battery pack energy storage systems
1.poor consistency. Iron phosphate battery pack life is significantly lower than the single. Compared with other batteries lithium iron phosphate battery pack life has no significant advantage. In the secondary market, there are a large number of battery packs that have not reached the expected life before they are eliminated.
2. low-temperature performance is not good. Below 0 degrees when the capacity drops quickly, in the low-temperature cycle performance is extremely poor.
3.in the sintering process during the preparation of lithium iron phosphate, there is the possibility of iron oxide being reduced to singlet iron in a high-temperature reducing atmosphere. Monolithic iron can cause a micro-short circuit in the battery, is the most taboo material in the battery.
4.the material preparation cost and the manufacturing cost of the battery is high, the battery yield is low, poor consistency.
5.lithium iron phosphate battery cathode vibration density is small, the density is generally in the 0.8 to 1.3 or so.
In the process of continuous research and development and practice of energy storage systems, in addition to some practical problems designed a corresponding solution, but also further to other remote monitoring, cloud management system, big data collection and analysis and energy storage battery recycling, etc. to do the actual development and application. This is continuously applied and enhanced in future power station energy storage, home energy storage, communication energy storage and other different energy storage systems.
