Lithium Iron Phosphate (LiFePO4, LFP) is kind of Li-Ion rechargeable battery for high power applications, such as EV car , Power Tool and RC hobby. LFP cells feature with high discharging current, non explosive, long cycle life (>2000@0.2C rate, IEC Standard). LFP cell has 3.2V nominal working voltage and shall be cut-off power at 3.6-3.8V per cell during charging. LFP battery has the lowest cost if considering its long cycle life. And here are the mainly advantages of LiFePO4 batteries.

1. Improvement of safety performance

The P-O bond in lithium iron phosphate crystal is stable and difficult to decompose. Even at a condition of high temperature or overcharge, it will not collapse into heat or form strong oxidizing substances like lithium cobalt oxide, so it has good safety.It has been reported that in the actual operation of acupuncture or short-circuit experiments, a small number of samples were found to be burning, but no explosion occurred. Therefore, its overcharge safety has been greatly improved compared with ordinary liquid electrolyte lithium cobalt oxide batteries.

2. Improvement of life expectancy

Lithium iron phosphate battery refers to the lithium ion battery use lithium iron phosphate as the positive electrode material.

The cycle life of long-life lead-acid battery is around 300 times, and the maximum is 500 times, while the cycle life of lithium iron phosphate battery is over 2000 times, and the standard charge (5 hours rate) can reach 2000 times.The lead-acid battery of the same quality is "new half a year, old half a year, maintenance and maintenance half a year", with a maximum time of 1-1.5 years, while the theoretical life of lithium iron phosphate battery under the same conditions will reach 7-8 years.Taken into account, the performance-price ratio is theoretically more than 4 times that of lead-acid batteries.Large current discharge can charge and discharge rapidly with a large current of 2C. Under the special charger, the battery can be fully charged within 40 minutes after charging 1.5C,