What are the advantages of lithium iron phosphate battery

　　1. Improvement of safety function

　　The p-o bond in lithium iron phosphate crystal is stable and difficult to distinguish. Even under high temperature or overcharge, it will not have the same structural collapse heat or form strong oxidizing substances as lithium cobalt oxide, so it has excellent safety. Chen pointed out that in actual operation, a small number of samples were found to be burned in acupuncture or short circuit tests, but there was no blasting. However, in the overcharge test, the high-voltage charging which is several times higher than the discharge voltage will still explode. However, compared with ordinary liquid electrolyte lithium cobalt batteries, the overcharge safety of lithium cobalt oxide batteries has made great progress.

　　2. Long life of improvement

　　Lithium iron phosphate battery is a lithium ion battery with lithium iron phosphate as cathode material.

　　The cycle life of long-life lead-acid battery is about 300 times, and the maximum is 500 times. The cycle life of lithium iron phosphate power battery is more than 2000 times, and the standard charging (5-hour rate) can reach 2000 times. Lead acid batteries of the same quality have a new half year, an old half year, a protection half year and a protection half year, with a maximum of 1~1.5 years. Under the same conditions as lithium iron phosphate batteries, the theoretical life will reach 7~8 years. Considering the induction, the function price is theoretically more than 4 times that of lead-acid batteries. High current discharge can quickly charge and discharge at high current 2C. In the special charger, 1.5C charge can make the battery fully charged within 40 minutes, and the starting current can reach 2C, but the lead-acid battery does not have this function.

　　3. High temperature function is good

　　The electrothermal peak of lithium iron phosphate can reach 350 ℃ - 500 ℃, while the electrothermal peak of lithium manganate and lithium cobalt oxide is only about 200 ℃. The working temperature planning scale is wide (- 20c75C), and the peak value of lithium iron phosphate with high temperature resistance can reach 350 ℃ - 500 ℃, while lithium manganate and lithium cobalate are only about 200 ℃.

　　4. Large capacity

　　The capacity of rechargeable battery is less than the additional capacity value when it is always full. This phenomenon is called the recall effect. For example, NiMH and NiCd batteries have been recalled, but lithium iron phosphate batteries do not. No matter what the battery is, it can be used with charging, and do not take it out for recharging.

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