A Ni-rich Cathode Material for Lithium-ion Batteries with Improved Safety and Cost

Nickel rich (Nickel-manganese-cobalt) NMC cathodes family provides a better safety, good cyclability and a lower cost compared to the lithium cobalt oxide (LCO). LiNi
_0.65
Mn
_0.25
Co
_0.25
O
₂
was synthesized via a co-precipitation method. The X-Ray Diffraction of the resulting powder showed a layered structure of the space group: R-3m without any obvious impurities or secondary phases. The intensity ratio of the (003) and (104) peaks is more than 1.2 which means that no considerable cation mixing has taken place. The electrochemical properties of LiNi
_0.65
Mn
_0.1
Co
_0.25
O
₂
were evaluated and optimized using different voltage ranges.