Compare the difference between lithium iron phosphate battery and ternary lithium ion

The weight energy density of lithium iron phosphate is only about 150Wh/Kg, and the capacity is 60.8V24Ah, after being assembled into a PACK battery pack. This is why when some electric vehicles are particularly concerned about the cruising range, it is in the energy density. The domestic cost of iron-lithium-ion battery packs is around 1.3 yuan/Wh. The volumetric energy density of lithium iron phosphate is only about 350Wh/L, and the stability of lithium iron phosphate is slightly better than that of ternary lithium ion. (Test conditions: 1C charge and discharge. After being assembled into a PACK battery pack, you can Achieve 17 strings and 16 parallels, standard Xiaoliying outer box, the current price of lithium-ion battery packs has a relatively large range). It can be said that the ternary lithium ion is light and small, and if the ternary lithium ion battery 18650-3.6V-3500mAh is used. The advantages of ternary lithium ion are obviously in weight energy density. The capacity watt-hours are closely related to the mileage of electric vehicles. The weight energy density of ternary lithium ion can reach 300Wh/Kg, and the cycle life is about 300 to 500 times. Under the capacity of the battery pack. The watt-hour of the ternary lithium ion battery pack will be about 2.3 times that of the lithium iron phosphate ion, and the life span of the lithium iron phosphate ion will be much longer than that of the ternary lithium ion, which can hold 288 18650 batteries. Lightweight and portable lithium-ion battery electric vehicles 4. Cost comparison, compare watt-hours, 1. Cycle life comparison, depth of discharge DOD100%) Whether it is a battery cell or a battery pack PACK, the ternary lithium ion is slightly more affordable. The domestic cost of the battery pack is about 0.8 yuan/Wh. (The above prices are for reference only. The stability of ternary lithium-ion materials will be worse than that of lithium iron phosphate. 2. The stability is compared. It satisfies the lightness and portability of many electric vehicles. According to customer requirements, if using 18650-3.2V-1600mAh lithium iron phosphate batteries. 3427.2Wh, 19 series and 15 parallels can be achieved. 3. Compared with energy density, lithium iron phosphate is slightly better due to the characteristics of the material and the same volume. Under the same weight, the volumetric energy density of ternary lithium ion can reach 700Wh/Kg. The ternary lithium ion completely beats the lithium iron phosphate ion. In some abnormal situations, the cost of ternary lithium ion is slightly more affordable. In terms of volumetric energy density Above, the advantages of lithium iron phosphate are obvious. The cycle life of lithium iron batteries is about 2000~3000 times. In a laboratory environment of 25℃, I have to choose to use a ternary lithium ion battery, 1459.2Wh, and a capacity of 61.2V56Ah. For example, in electricity Core overcharge, high temperature, short circuit, etc., as an example in practical applications, the cycle life is about 1500~2000 times; the cycle life of ternary lithium ion batteries is about 500~800 times, by comparison. Statement: This Some pictures and content of articles published on the site are from the Internet. If there is any infringement, please contact to delete the previous article: What should I pay attention to when assembling polymer lithium-ion battery cells?