What are the advantages and disadvantages of ternary lithium batteries introduced by lithium battery manufacturers?best golf cart batteries

　　1. The advantages of ternary lithium batteries are: smaller size, higher capacity density, low temperature resistance, and better cycling performance, making them the mainstream of new energy passenger vehicles.

　　2. The disadvantages of ternary lithium batteries are: poor thermal stability, decomposition at 250-300 ℃, and particularly strong chemical reactions of ternary lithium materials. Once oxygen molecules are released, the electrolyte will rapidly burn under high temperature, leading to detonation.

　　Ternary lithium batteries are relatively balanced in terms of capacity and safety, and have excellent overall performance. The important functions of these three metal elements.

　　The advantages and disadvantages of the three metal elements are as follows:

　　Co3+: reduces the mixing occupation of cations, stabilizes the layered structure of the material, reduces resistance value, improves conductivity, and improves cycling performance and speed.

　　Ni2+: can increase the capacity of the material (increase the energy density of the material volume). Due to the similar radii of Li and Ni, excessive Ni can also cause mixed discharge of lithium nickel due to dislocations with Li and the concentration of nickel ions in the lithium layer. The larger the lithium, the more difficult it is to de interlace it in a layered structure, resulting in poor electrochemical performance.

　　Mn4+: Not only can it reduce material costs, but it can also improve the safety and stability of materials. However, if the content of Mn is too high, it is prone to the formation of spinel phase, damaging the layered structure, and thus reducing the cycling capacity and attenuation.

　　High energy density is the biggest advantage of ternary lithium batteries, and the voltage platform is an important indicator of battery energy density, which determines the basic efficiency and cost of the battery. An time batteries with higher voltage platforms and ternary lithium-ion batteries have longer battery life. The discharge voltage platform of a single ternary lithium battery is as high as 3.7V, while that of lithium iron phosphate is 3.2V, and that of lithium titanate is only 2.3V. Therefore, from the perspective of energy density, ternary lithium batteries are superior to lithium phosphate, and lithium manganate or lithium titanate have absolute advantages.

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