What are the performance of the electric vehicle power battery requirements?

Source: 2020 - 04 - 11 18:49 hits: lithium iron phosphate high safety coefficient, low energy density dynamic lithium ion battery anode materials: (there are generally two kinds of system 1) Phosphate series, including lithium iron phosphate and phosphoric acid lithium manganese, lithium vanadium phosphate, cobalt and lithium manganese phosphate, iron phosphate, etc on the basis of the development; ( 2) Lithium manganese acid containing manganese material (such as Such as sliding) And on the basis of the development of lithium nickel manganese cobalt aluminate ( NCA) Such as material, at present the system has not been unified name. In order to facilitate description, lithium iron phosphate and dosage of the largest ternary material on behalf of the two systems, respectively. The performance requirements of electric vehicle power battery is mainly in the aspect of security and energy density. Security, needless to say, is the first choice of any vehicle; Space is limited, in addition, the vehicle range is limited, so the energy density of power battery is also very important. Many factors influence the properties of lithium ion battery, among which the anode materials is one of the important factors play a leading role. Therefore, before the development of dynamic lithium ion battery technology, enterprises of different countries and regions should first consider to choose what kind of system of anode materials. Generally speaking, the advantages of lithium iron phosphate is high safety coefficient, long cycle life, the disadvantage is that the energy density is low. The ternary material just the opposite. Most of Japan and South Korea enterprise choose three yuan material route, pay attention to the safety of the ternary material and cycle life; China ( Including Taiwan) And U. S. companies usually choose route of lithium iron phosphate, focus is to improve the energy density. It should be noted that may be for safety reasons, the Chinese government departments and officials or Ming or tacitly encourage enterprises taking lithium iron phosphate line.