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Lithium iron phosphate battery is a branch of lithium-ion battery together with lithium manganate, lithium cobalt oxide and ternary lithium battery. Its performance is mainly suitable for power applications. At this time, it is called lithium iron phosphate power battery, also known as lithium iron battery.

Lithium iron phosphate battery is a branch of lithium-ion battery together with lithium manganate, lithium cobalt oxide and ternary lithium battery. Its performance is mainly suitable for power applications. At this time, it is called lithium iron phosphate power battery, also known as lithium iron battery. Therefore, the advantage of lithium iron phosphate battery mainly refers to its comparison with other batteries in power application. In this sense, we will mainly compare its comparative advantages with ternary lithium battery and lead-acid battery.

1、 High temperature resistance compared with ternary lithium battery. Lithium iron phosphate battery has better high-temperature performance and can withstand high temperatures of 350 ° C ~ 500 ° C, while lithium manganate / lithium cobalt oxide is usually only about 200 ° C. the material of the modified ternary lithium battery will decompose at 200 ° C.

2、 The "elder" - the absolute advantage of long life. The cycle life of lithium iron phosphate battery is longer than that of lead-acid battery and ternary lithium battery. The "long life" of lead-acid batteries is only about 300 times, up to 500 times; In theory, the ternary lithium battery can reach 2000 times, and when applied to 1000 times, the capacity will decay to 60%; The real life of lithium iron phosphate battery is 2000 times, at this time, there is still 95% capacity, and its conceptual cycle life is more than 3000 times.

3、 Compared with lead-acid battery, it has many advantages:

1. Large capacity. The monomer can be made into 5Ah ~ 1000ah (1Ah = 1000mah), while the 2V monomer of lead-acid battery is usually 100Ah ~ 150Ah, with a small variation range. 

2. Light weight. The volume of lithium iron phosphate battery with the same capacity is 2 / 3 of the volume of lead-acid battery and 1 / 3 of the weight of the latter.

3. Strong fast charging capacity. The starting current of lithium iron phosphate battery can reach 2c to realize large rate charging; The current of lead-acid battery is generally required to be between 0.1C ~ 0.2C, which can not achieve fast charging performance.

4. Environmental protection. Lead acid batteries contain a large amount of heavy metals - lead, which produces waste liquid, while lithium iron phosphate batteries do not contain any heavy metals and have no pollution in production and use.

5. High cost performance. Although the purchase cost of lead-acid battery is lower than that of lithium iron phosphate battery because of its cheap material, it is less economical than lithium iron phosphate battery in service life and daily maintenance. The practical application results show that the cost performance of lithium iron phosphate battery is more than 4 times that of lead-acid battery.

Although the application scope of lithium iron phosphate battery is mainly reflected in the power direction, it can also be extended to more fields in theory, which is determined by the various advantages shown in the above comparison. If it is further improved in terms of energy density and discharge rate, it is entirely possible to enter the traditional application fields of other types of lithium-ion batteries.