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Do you know which ternary lithium ion battery is?

by:Vglory      2021-05-09
Ternary refers to a positive electrode material, and the ternary of a ternary lithium-ion battery refers to the three elements of nickel (Ni), cobalt (Co) and manganese (Mn). Among these three elements, nickel and cobalt are active metals, and manganese does not participate in the electrochemical reaction. Generally speaking, the higher the content of active metal components, the greater the battery capacity, but when the content of nickel is too high, it will cause nickel ions to occupy the positions of lithium ions, which will aggravate the mixing of cations and reduce the capacity. Cobalt is also an active metal, which can inhibit the mixing of cations, thereby stabilizing the layered structure of the material. As an inactive metal, manganese plays an important role in stabilizing the reaction and improving safety. The ratio of nickel, cobalt and manganese in the positive electrode material of a ternary lithium ion battery can be adjusted within a certain range, and its performance will vary with the ratio of the three. In recent years, ternary lithium-ion batteries have gradually replaced nickel-metal hydride batteries and lithium cobalt oxide batteries with their advantages of high capacity, good cycle stability, and moderate cost, and have become the mainstream batteries in the current market. The ternary of the ternary lithium ion battery refers to the three elements of nickel (Ni), cobalt (Co) and manganese (Mn). Among these three elements, nickel and cobalt are active metals, and manganese does not participate in the electrochemical reaction. Generally speaking, the higher the content of active metal components, the greater the battery capacity, but when the content of Ni is too high, it will cause Ni2+ to occupy the position of Li+, which intensifies the mixing of cations, resulting in a decrease in capacity. Co is also an active metal, but it can inhibit the mixing of cations and stabilize the layered structure of the material. As an inactive metal, Mn plays an important role in stabilizing the reaction and improving safety. To make an inappropriate analogy, the nickel element is equivalent to the boiling sheep in 'Pleasant Goat and Big Big Wolf'. It is the strength of Yangcun. However, unrestricted may cause troubles due to violent personality and affect team efficiency. The cobalt element is equivalent to the beautiful sheep. Although it has combat effectiveness, it is important to improve the team atmosphere through beauty. The manganese element is slow sheep and has no combat effectiveness. It is the spiritual leader of the Yangcun. It serves to stabilize the team and prevent the sheep from fighting each other. Nickel-cobalt-manganese ternary materials can usually be expressed as: LiNixCoyMnzO2, where x+y+zu003d1. It has been found that the ratio of nickel, cobalt and manganese in the ternary cathode material can be adjusted within a certain range, and its performance varies with the ratio of nickel, cobalt and manganese. Through a lot of research, countries around the world have proposed a number of ternary material systems with different ratios of nickel, cobalt, and manganese, including 333, 523, 622, and 811 systems. Simply speaking, the larger the first number, the stronger the performance of the battery, the higher the difficulty of production, and the harsher the use conditions. The larger the last number, the worse the battery performance and the lower the production cost. At present, 333 and 523 lithium-ion batteries are the mainstream models of automotive power lithium batteries, and 622 and 811 lithium-ion batteries are also an important research direction in my country. Disclaimer: The articles published on this website are all from the Internet. If there is any infringement, please contact to delete it. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: What factors drive the development of lithium-ion battery materials?
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