From：CTECHI GROUP Limited Release time：2018-11-08
Overview：Lithium iron phosphate battery and lithium manganate, lithium cobalt oxide and lithium ternary battery are branches of lithium ion battery. Its performance is mainly applicable to 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 is its comparison with other batteries in power applications. In this sense, the relative advantages of it will be compared with that of three yuan lithium battery and lead-acid battery.
Lithium iron phosphate battery and lithium manganate, lithium cobalt oxide and lithium ternary battery are branches of lithium ion battery. Its performance is mainly applicable to power applications. At this time, it is called lithium iron phosphate battery, also known as lithium iron battery. Therefore, the advantage of lithium iron phosphate battery is its comparison with other batteries in power applications. In this sense, the relative advantages of it will be compared with that of three yuan lithium battery and lead-acid battery.
1. High temperature resistance compared with three yuan lithium battery. For example, 3.2v 1000mah 18500 lithium phosphate rechargeable battery has better high temperature performance and can withstand 350 C ~ 500 C, while lithium manganate / lithium cobalt oxide batteries usually have only about 200 C. The modified lithium ternary battery materials will decompose at 200 C.
2. The "elderly" among the three - the absolute longevity advantage. For example, the lifetimes of 12.8V Lithium Iron Phosphate rechargeable battery are longer than those of lead-acid batteries and three yuan lithium batteries. The "long life" of lead-acid batteries is only 300 times, up to 500 times; the capacity of ternary lithium batteries can be up to 2000 times in theory and 60% in practical application; while the real life of 12 volt lithium iron phosphate battery can be up to 2000 times, at this time there is 95% capacity, and their ideal cycle life can reach more than 3000 times.
3. Compared with lead-acid batteries, there are many lithium iron phosphate battery 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 capacity of the LiFePO4 battery is 2/3 of the volume of the lead-acid battery and the weight is 1/3 of the latter.
(3) Fast charging capability. The starting current of lithium iron phosphate batteries can reach 2C to achieve high rate charging, while the current of lead acid batteries is generally required between 0.1C and 0.2C, which can not achieve fast charging performance.
(4) Environmental protection. Lead-acid batteries contain a large number of heavy metals, lead, which produces waste liquor, while lithium iron phosphate batteries do not contain any heavy metals, and are pollution-free in production and use.
(5) High cost performance. Although lead-acid batteries are cheaper to purchase than lithium iron phosphate batteries due to their cheap materials, they are less economical than lithium iron phosphate batteries in terms of service life and daily maintenance. The practical application results show that the cost performance of LiFePO4 battery is 4 times higher than that of lead-acid batteries.
Although the application scope of lithium iron phosphate batteries is mainly reflected in the power direction, it can also extend to more fields in theory. This is determined by the advantages of the above comparison. If the energy density and discharge rate are further improved, the traditional application fields of other types of lithium ion batteries will also be entered.
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