What is the general cost of ternary lithium batteries for electric vehicles?

Ternary lithium battery is a lithium ion secondary battery that uses ternary polymers such as nickel cobalt manganese lithium or nickel cobalt aluminum aluminate as the positive electrode material. The ternary refers to the three metals containing nickel, cobalt, manganese or aluminum. Elemental polymers are used as the positive electrode in a ternary lithium battery; lithium refers to the electrolyte whose electrolyte is mainly lithium hexafluorophosphate, and the negative electrode material is generally graphite. At present, the batteries used in electric vehicles are basically ternary lithium batteries. A total of 221 ternary lithium batteries were used in the first 8 batches of 296 electric vehicles. According to the data of UBS, the international investment decomposition agency, the current domestic price of ternary lithium batteries is 1042 yuan per kWh. Take a BYD Yuan EV as an example, a 42-degree battery costs 44,000. Statistics from the Power Lithium-ion Battery Research Department show that in March 2019, my country’s new energy vehicle power lithium-ion battery installed capacity was about 5.09GWh, a year-on-year increase of 146.3% and a month-on-month increase of 126.69%. Among them, the installed capacity of ternary material lithium batteries is 3.89GWh, accounting for 76.47% of the market share of new energy vehicles, which is an increase of 6% compared with the same period last year, showing a trend of out-of-the-box, the mainstream status is difficult to shake. Among the most used ternary lithium batteries, nickel-cobalt-manganese materials are the most mainstream, which is also the main product of most domestic battery companies. With these three chemical materials, nickel has played a key role in increasing battery density. Batteries with a higher proportion of nickel will be the trend, and cobalt will account for a greater proportion of cost. 1. Nickel cake: Nickel is an active metal in the subgroup. The main purpose of nickel is to increase the volumetric energy density of the battery. It is an important breakthrough to increase the cruising range, but too much content will cause nickel ions to occupy the position of lithium ions, resulting in a decrease in capacity. 2. Cobalt powder: Cobalt is also an active metal in the subgroup, which can inhibit the mixing of cations, thereby improving the use of improving stability and prolonging the life of the battery. In addition, it also determines the charging and discharging speed and efficiency of the battery , But too high cobalt content will cause the actual capacity to decrease. 3. Aluminum or manganese: The purpose of manganese or aluminum is to reduce material costs. After all, the nickel and cobalt mentioned above are very expensive and rare metals, and can improve the safety and stability of the battery. Faced with increasing costs, global battery suppliers are trying to reduce the content of cobalt in ternary batteries. They have changed the formula ratio of battery cathode materials and changed the ratio of nickel, cobalt, manganese or nickel, cobalt, and aluminum in ternary batteries from 6:2:2 was changed to 8:1:1. Many power lithium-ion battery companies in my country are also deploying high-nickel ternary batteries. High nickel and low cobalt are on the one hand to increase energy density and on the other hand to reduce costs. From the perspective of manufacturing costs, the cobalt element necessary for ternary lithium batteries is relatively small in my country, and most of them are imported from overseas, which is greatly affected by market fluctuations. Therefore, the cost of ternary lithium batteries will inevitably remain high, while lithium iron phosphate The raw materials needed for the battery do not need to be imported, the supply is sufficient, the price is stable, and the cost is relatively low. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Analysis of UPS power battery maintenance and testing methods