Characteristics and defects of lithium iron phosphate batteries

The electrochemical principle of the lithium iron phosphate battery: the positive electrode material of the lithium iron phosphate battery is lithium iron phosphate (lithium peroxide), the negative electrode material is graphite or cola, and the lithium iron phosphate battery is a kind of lithium battery, and its name is the positive electrode material Lithium iron phosphate battery. The characteristics of lithium iron phosphate batteries: high energy density: energy density can indicate the amount of energy stored per unit volume or weight. The energy density of an electrochemical battery refers to the amount of energy that the battery can supply to an external load per unit volume or mass. Under the same weight, the energy density of a lithium iron phosphate battery is 3 to 5 times that of a lead-acid battery, that is to say, the rated capacity of the battery is the same, and the lithium iron phosphate battery will be much lighter than the lead-acid battery. Relatively reduce the intensity of support requirements. Long service life: The service life of a recyclable battery refers to the number of cycles of normal charging and discharging of the battery. The life of lead-acid batteries is about 500 times, and the life of lithium iron phosphate batteries can reach 1600 times, and the capacity can be maintained at about 80%. The service life of lithium iron phosphate batteries is significantly better than that of lead-acid batteries. Safety: The safety of lithium batteries has always been the key to limiting their development and lithium iron phosphate batteries completely solve the instability of lithium compounds, and lithium cobalt oxide lithium manganese oxide can explode under certain conditions, such as collisions, and carefully The iron-lithium battery is designed and passed rigorous testing, performance testing and safety under fierce collision, penetration, etc., and so on. There is no explosion. No memory effect: The recyclable charge and discharge battery can be fully charged for a long time when not in use, and its capacity will be relatively lower than the rated capacity value. This is the memory effect. Lead-acid batteries have obvious memory effect. After testing, lithium iron phosphate batteries have basically no memory effect. The supply of lithium iron phosphate batteries is insufficient. As the maturity of lithium iron phosphate batteries is not high, the production process is not mature, and the cost is relatively high. In addition, the capacity of lithium iron phosphate batteries needs to be further improved. The energy management system and battery charge-discharge balance function of lithium iron phosphate batteries need to be improved and cannot be applied on a large scale in microgrid systems. Conclusion Fuel power batteries, vanadium batteries, and flywheel energy storage technologies are still immature. The shortcomings of traditional lead-acid batteries are becoming more and more obvious. As a representative of current electrochemical battery technology, lithium iron phosphate batteries have gradually matured and their applications have gradually become popular. . National policy support has accelerated the development of lithium iron phosphate batteries. The price of lithium iron phosphate battery will slowly decline in the future development and popularization. It will become the mainstream battery energy storage system in the future. With its superior performance, it will inject fresh blood into the energy storage system of the microgrid and further improve the overall performance of the microgrid. . Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Analysis of patent applications for lithium battery separators