What are the characteristics of lithium iron phosphate batteries and ternary lithium batteries?

Early mainstream battery lithium iron phosphate battery The so-called lithium iron phosphate battery refers to a lithium battery using lithium iron phosphate as the positive electrode material. In the early stages of the development of new energy vehicles, lithium iron phosphate batteries have become the first choice of major manufacturers due to their superior thermal stability, good safety, and low development cost. However, with the continuous development of technology, ternary lithium batteries with superior performance have appeared. In comparison, the energy density of lithium iron phosphate batteries is lower. In the case of the same cruising range, the weight of vehicles equipped with lithium iron phosphate batteries Higher, directly lead to unsatisfactory energy consumption. The current mainstream battery ternary lithium battery ternary lithium battery refers to a lithium battery using nickel cobalt manganese lithium potassium manganate ternary cathode material. Compared with the previously analyzed lithium iron phosphate battery, it has high energy density, reasonable price and better overall performance. Excellent, has become the type of battery used in most new energy vehicles. Both types of batteries have their own strengths. Under high temperature conditions, the ternary materials of ternary lithium batteries will decompose at 200°C, undergo violent chemical reactions, release oxygen atoms, and are prone to burn or explode in high-temperature applications. Therefore, based on safety considerations, the Ministry of Industry and Information Technology of my country issued a special document in January 2016 to temporarily restrict the use of ternary lithium batteries to pure electric buses. The decomposition temperature of lithium phosphate batteries is 800°C, which is less likely to catch fire and is relatively safe. Under low temperature conditions (the temperature is below -10℃), the lithium phosphate battery decays very quickly. After less than 100 charge and discharge cycles, the battery capacity will drop to 20% of the initial capacity, which is basically insulated from the use in cold areas; The ternary lithium battery has excellent low-temperature performance and can maintain normal battery capacity at -30°C, which is more suitable for the use conditions in low-temperature areas in the north. 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 is bound to 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: What are the excellent characteristics of ternary lithium batteries?