%0 Journal Article %T Research on Preparation and Electrochemical Performance of the High Compacted Density Ni-Co-Mn Ternary Cathode Materials %A Fupeng Zhi %A Juanhui Wang %A Xiaomin Zhang %A Jun Zhang %J Advances in Materials Physics and Chemistry %P 47-53 %@ 2162-5328 %D 2024 %I Scientific Research Publishing %R 10.4236/ampc.2024.143004 %X The high compacted density LiNi0.5-xCo0.2Mn0.3MgxO2 cathode material for lithium-ion batteries was synthesized by high temperature solid-state method, taking the Mg element as a doping element and the spherical Ni0.5Co0.2Mn0.3 (OH)2, Li2CO3 as raw materials. The effects of calcination temperature on the structure and properties of the products were investigated. The structure and morphology of cathode materials powder were analyzed by X-ray diffraction spectroscopy (XRD) and scanning electronmicroscopy (SEM). The electrochemical properties of the cathode materials were studied by charge-discharge test and cyclic properties test. The results show that LiNi0.4985Co0.2Mn0.3 Mg0.0015O2 cathode material prepared at calcination temperature 930กใC has a good layered structure, and the compacted density of the electrode sheet is above 3.68 g/cm3. The discharge capacity retention rate is more than 97.5% after 100 cycles at a charge-discharge rate of 1C, displaying a good cyclic performance. %K High Compacted Density %K Ternary Cathode Materials %K Electrochemical Performance %U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=132238