Introduction to ternary lithium battery

Ternary lithium battery is a kind of lithium battery: it mainly refers to the cathode material of the battery. Generally, the cathode material of lithium batteries is lithium cobalt oxide. The ternary lithium battery is relatively balanced in terms of capacity and safety, and is a battery with excellent overall performance. The important uses and advantages of the three metal elements are as follows: Co3+: Reduces mixed cations, stabilizes the layered structure of the material, reduces the impedance value, improves the conductivity, and improves the cycle and efficiency performance. Ni2+: can increase the capacity of the material (increase the volume energy density of the material), and due to the similar radius of Li and Ni, too much Ni will also cause lithium and nickel to be mixed due to the dislocation phenomenon of Li, and the concentration of nickel ions in the lithium layer The larger the value, the more difficult it is to deintercalate lithium in the layered structure, resulting in poor electrochemical performance. Mn4+: Not only can reduce the cost of materials, but also can improve the safety and stability of the materials. However, an excessively high Mn content will easily form a spinel phase and destroy the layered structure, reducing the capacity and reducing the cycle. 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.