Explain the true life of lithium iron phosphate battery

Lithium iron phosphate battery refers to a lithium battery that uses lithium iron phosphate as a positive electrode material. The cycle life of long-life lead-acid batteries is about 300 times, and the highest is 500 times, while the cycle life of lithium iron phosphate power lithium-ion batteries can reach more than 2000 times, and the standard charge (5 hour rate) can reach 2000 times. Lead-acid batteries of the same quality are new for half a year, old for half a year, and for maintenance and maintenance for half a year, at most 1 to 1.5 years, while lithium iron phosphate batteries used under the same conditions, the theoretical life will reach 7 to 8 years. The true life of lithium iron phosphate batteries 1. Lithium iron carbonate batteries have different discharge rates in different environments: first of all, the author wants to analyze for everyone that lithium iron carbonate batteries have different discharges under different environments. The minimum discharge rate can reach 0.5c, and the maximum discharge rate can reach 10c. Regardless of the discharge rate, this battery will be very flat during the discharge process. Generally speaking, the voltage is very stable. , Will remain almost unchanged. Only when the power generation of the lithium iron carbonate battery is about to end, will it be found that it will have a sharp decline, which can effectively indicate that the lithium iron carbonate battery has very good discharge characteristics. It shows that its true life span is very long. 2. The display of lithium iron carbonate batteries under different temperature conditions: Secondly, the author wants to analyze for everyone that lithium iron carbonate batteries will have different discharge phenomena at different adjusted temperatures, so we set the temperature to below zero 20 degrees to 40 degrees or more, at this time, everyone will find that when the lithium iron carbonate battery is at 23 ℃, the power generation capacity can reach 100%, while the discharge capacity at 0 ℃ will be 78%, which means that the third The discharge rate of iron-lithium battery is different under different temperature conditions, so when everyone should estimate the description of lithium iron carbonate battery, it must be kept in a certain temperature area, so estimate The result is relatively good, but from the point of view of its performance under extreme temperature conditions, the true life of the lithium iron carbonate battery is very long, which can reach more than 570 discharge cycles. 3. Put the lithium iron carbonate battery to the zero voltage test: Put the lithium iron carbonate battery in the zero voltage test, and everyone will find that after the battery overflows in 3 days, it will continue to discharge repeatedly in such an environment. , Found that its capacity will change very little, which shows that its capacity recovery is very good. Finally, the processing of lithium iron phosphate is subject to patent disputes abroad, which is one of the reasons why foreign electric vehicles generally use ternary cathode material lithium batteries. The lifespan of lithium iron phosphate batteries may not be 4-5 times longer than that of lead-acid batteries. For lead-acid batteries with relatively high technical content, there is no problem with the lifespan reaching 5 years. Because of the structural collapse of the negative electrode material graphite, lithium batteries will be scrapped even if they are left unused for five years. There is no way to compare batteries of different quality. Nanfu and Dongfangxing are far from each other. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.