Is the true life of a lithium iron phosphate battery the same as the cycle number?

Lithium iron phosphate battery life At present, lithium iron phosphate batteries in the market have a standard cycle life of about 2000 times, which refers to the ideal smooth normal low current charge and discharge and room temperature environment, but in fact, the real lithium iron phosphate battery The cycle life is different in different situations. This is important for the service life of several different applications. 1. Use of lithium iron phosphate battery at room temperature (1) Low current charge and discharge In this case, this application is basically used for 3C electronic products. If lithium iron phosphate batteries are generally used in this field, if the battery manufacturer has strong strength and good quality, the cycle life is basically more than 2000 times. Small lithium battery manufacturers have more than 1,000 cycles of service life with poor quality; (2) Stable charge and discharge, high-rate discharge applications of multipliers, mostly power lithium batteries, mostly used for applications that supply power to motors, such as new energy vehicles , Electric vehicles, fishing boats electromechanical power supply, etc. Since lithium iron phosphate batteries mostly work under high load, which accelerates the decay time of battery materials, the cycle life is greatly shortened. A poor quality battery may only have about 500 cycles. A strong brand manufacturer of lithium iron phosphate batteries will be better in terms of equipment technology and material applications, and the quality of the batteries will be better, but the cycle life is about 800 times. (3) The high multiplier is unstable to charge and discharge lithium iron phosphate batteries, just like the batteries used in this case, with a shorter life span, about 300 times that of useless batteries. The unstable discharge of the battery, when the power is too high or too low, the promotion of battery attenuation will be more useful. 2. Lithium iron phosphate battery is suitable for high temperature environment. The high temperature performance of lithium iron phosphate battery is not very mature at present. The operating temperature range is -20°C~125°C as the theoretical value, and the actual application temperature range is relatively small. (1) Low-current charging and discharging If the lithium iron phosphate battery is used normally in this field, if the battery manufacturer is strong and of good quality, its cycle life will exceed 1000 times. Small lithium battery manufacturers have a service life of more than 500 times with poor quality; due to the high temperature used, the damage to the battery is relatively large. (2) Stable charging and discharging, high-rate discharge battery applications under high and high temperature environments of the multiplier, most of which are power-type lithium batteries, which are important for the application of electric vehicles in China. The batteries used by lithium battery manufacturers are used in new energy. Automobiles, electric vehicles and ships and other machinery and power supply, battery manufacturers with poor strength, are more used in subdivisions, such as medical treatment, boiler equipment start-up, etc. Since lithium iron phosphate batteries mostly work under high load, which accelerates the decay time of battery materials, the cycle life is greatly shortened. Regarding poor quality cells, there may be only about 300 cycles. Powerful battery brand manufacturers will be better in equipment technology and material application, and battery quality will be better, but the cycle life is about 500 times. (3) The high-multiplier is unstable. The high-temperature discharge rate of the high-frequency multiplier is unstable. The battery is damaged and the cycle life is low. Several battery manufacturers have found that the battery has a battery life of 250 to 300 times and the battery cannot be used. 3. Lithium iron phosphate battery is suitable for low temperature environment. Low temperature environment has more influence on the performance of lithium iron phosphate battery than high temperature environment. Judging from the current market situation, the operating temperature of lithium iron phosphate batteries is between -20°C and -40°C, and their lifespan is significantly reduced. The discharge current range is 0.2~1C, and the discharge capacity is 50%~60%. Therefore, there are not many mature low-temperature lithium iron phosphate batteries on the market, with a temperature range of -20°C to 55°C, and a cycle life of about 300 times. The above is the basic knowledge of how to judge which brand of lithium iron phosphate battery is good, I hope it will be helpful to you. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: A brief analysis of the eight advantages of polymer lithium batteries