The properties of the lithium iron phosphate batteries and defects

Source: 2020 - 04 - 19:52 10 hits: the electrochemical theory of lithium iron phosphate battery: the lithium iron phosphate battery positive electrode material of lithium iron phosphate ( Peroxide lithium) Anode materials, graphite or cola, lithium iron phosphate battery is a lithium battery, it is the name of the anode material of lithium iron phosphate batteries. Lithium iron phosphate batteries: the characteristics of high energy density, energy density can represent the amount of energy stored per unit volume or weight. Electrochemical batteries is refers to the battery energy density per unit volume or quality to supply the energy of the external load quantity. Under the same weight, the energy density of the lithium iron phosphate battery is 3 ~ 5 times that of lead-acid battery, that is, the capacity of the battery is the same, the lithium iron phosphate battery is much lighter than lead-acid batteries, also relative to reduce the strength of the support requirements. Long service life: recyclable battery life is refers to the normal battery charge and discharge cycles. Lead-acid battery life is about 500 times, lithium iron phosphate battery life of up to 1600 times, capacity can keep at around 80%. Lithium iron phosphate battery is obviously better than the service life of the lead-acid battery. Safety: the safety of the lithium ion battery has been is the key to limit its development and lithium iron phosphate battery completely solve the instability of lithium compounds, and cobalt acid lithium manganese acid lithium under certain conditions can produce explosion, such as collision, and the design of lithium iron phosphate batteries carefully, and through rigorous testing, performance testing and security under the fierce collision, infiltration, and so on all have no explosion. No memory effect, can charge and discharge batteries in the case of not use can be charged for a long time, the capacity will be relatively lower than the rated capacity values, this is the memory effect. Lead-acid battery has obvious memory effect, after the test, the lithium iron phosphate battery basic no memory effect. Lithium iron phosphate batteries are in short supply. Due to the lithium iron phosphate battery maturity is not high, the processing technology is not mature, the high cost. In addition, the lithium iron phosphate battery capacity remains to be further improved. Lithium iron phosphate battery energy management system and battery charge and discharge balance function remains to be perfect, not large-scale application in the micro grid system. Conclusion in the fuel cell, vanadium battery, flywheel energy storage technology is not yet mature, the disadvantage of conventional lead-acid battery is more and more obvious, the lithium iron phosphate batteries as electrochemical cells represent the current technology, technology has gradually mature, the application has been gradually spread. National policy support to speed up the development of lithium iron phosphate batteries. Lithium iron phosphate batteries will also slow down the price of the future of the development and popularization, it will become the mainstream of future battery energy storage system with its superior performance, injected fresh blood micro grid energy storage system, and further improve the overall performance of the micro grid.