LIB Cathode, Precursors of Cobalt Based Manganese

In Lithium Ion Batteries, recharge and discharge occurs through the movement of lithium ions between the cathode and anode. The material that takes in and discharges the lithium ion is called active material. Methods for producing these cathode active materials will be described in this passage. The production process is split into two separate procedures. The first is the chemical bonding process between active materials taken from materials called precursors; the second process is to adjust the synthesized active materials and coat onto the electrode current collector. To start off, the technology behind precursors for cobalt based and manganese based cathode materials will be explained. While the leading cobalt based material is lithium cobalt oxide LiCoO2 LCO, there are other cobalt based materials called a ternary system such as Li (NiaMnbCo1-a-b) NMC and Li (NiaCobAl1-a-b) O2 NCA, as well as a quaternary system which is an active material made up of a complicated chemical composition. These materials are used in their respective fields to best utilize their features. For manganese-based materials, such materials as LiMn2O4 and Li2MnO3 can be named. Cobalt based precursors include cobalt oxide, cobalt hydroxide, oxy cobalt hydroxide, cobalt carbonate, as well as lithium carbonate, lithium hydroxide, and manganese oxide. Manganese based precursors include manganese oxides and lithium carbonates. Active materials are often produced by the solid phase method. The following passage will be an introduction to dry grinding, precision mixing, and drying technology used in the precursor production process before the furnace stage for synthesis reaction.