TITLE:
Research on Preparation and Electrochemical Performance of the High Compacted Density Ni-Co-Mn Ternary Cathode Materials
AUTHORS:
Fupeng Zhi, Juanhui Wang, Xiaomin Zhang, Jun Zhang
KEYWORDS:
High Compacted Density, Ternary Cathode Materials, Electrochemical Performance
JOURNAL NAME:
Advances in Materials Physics and Chemistry,
Vol.14 No.3,
March
29,
2024
ABSTRACT: 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 930°C 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.