For a pure electric vehicle, the battery is a vital component like the engine of the fuel-vehicle era. According to the lithium iron phosphate battery, the iron-lithium battery belongs to a type of ternary lithium battery, which is relatively rare for new energy vehicles with a relatively small installed capacity. The advantage of the iron-lithium battery is for the vehicle. Although the battery has lower energy density than the lithium cobalt oxide battery, its stability is higher and safer. It is reported that BYD will introduce a new iron-lithium battery in 2020. What is the performance?
As a thing that BYD has always adhered to, the lithium-ion battery is calculated according to the structure of the battery. The energy density of the battery will increase by 50%, the life span will be 1.2 million kilometers for 8 years, and the cost can be saved by 30%. The performance of the iron-lithium battery is determined by the internal structure. According to the lithium iron phosphate battery, the energy density of the battery is determined by the positive electrode material. It refers to a lithium ion battery using lithium iron phosphate as a positive electrode material. The cathode material of the lithium ion battery is mainly composed of lithium iron phosphate material. Lithium iron phosphate material as the positive electrode of the battery usually makes the battery performance exceed expectations.
According to the energy density of the existing iron-lithium battery, the energy density of the lithium iron phosphate battery unit is increased to 180 wh/kg or more. According to the structure of the battery electrode, the PO bond in the lithium iron phosphate crystal is stable and difficult to decompose, and does not collapse or heat like a lithium cobaltate or form a strong oxidizing substance even at a high temperature or overcharge, so that it has a good Security. BYD has introduced a new iron-lithium battery. Although it is slow to charge at low temperatures, it does not affect the normal use effect. According to the lithium iron phosphate battery, the life of the lithium iron phosphate battery is 2 to 3 times that of the whole vehicle.
Therefore, there is no need to worry about using the above, and the performance is also reliable, but the biggest disadvantage is that the energy density is relatively low and the cruising range is relatively low. Today, BYD announced that a new generation of lithium iron phosphate batteries can increase energy density by 50% and reduce costs by 30%. If this is the case, then BYD may re-use lithium iron phosphate batteries in its own pure electric vehicles in the future.