Research on Preparation and Electrochemical Performance of the High Compacted Density Ni-Co-Mn Ternary Cathode Materials ()
ABSTRACT
The high
compacted density LiNi
0.5-xCo
0.2Mn
0.3Mg
xO
2 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.
Share and Cite:
Zhi, F. , Wang, J. , Zhang, X. and Zhang, J. (2024) Research on Preparation and Electrochemical Performance of the High Compacted Density Ni-Co-Mn Ternary Cathode Materials.
Advances in Materials Physics and Chemistry,
14, 47-53. doi:
10.4236/ampc.2024.143004.
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