Enhanced cathode materials for advanced lithium-ion batteries using nickel-rich and lithium/manganese-rich LiNixMnyCozO2

摘要

Fossil fuel consumption raises the world's economy by causing severe ecological effects. Thus, contemplating an energy gadget with environmentally friendly behavior would be a desirable function. Furthermore, their advancement will aid in a dramatic increase in military resources and energy storage. Lithium-ion batteries paid more attention to offering high capacity and stability compared to other batteries. Specifically, the LiNixMny- CozO2(NMC) cathode achieves excellent specific capacity and cyclability, but with different effects like the deposition of residual lithium over the surface, ion mixing, oxygen release, dissolution of transition metal ions, and irreversible rock-salt phase transformation. Moreover, the idea of doping and coating will make the cathode efficient. The doping of materials like Al, Mg, Cr, and F makes an excellent stable cathode due to their strong bonding with oxygen atoms and also helps to increase the lattice parameter size during cycling for Li+ ion diffusion. Likewise, the coating covers the cathode surface and protects it from the electrolyte. Besides, there was no single counter to rectify all these drawbacks. Thus, the combination of two or more strategies can be a better idea to suppress these drawbacks and provide the NMC cathode with high stability, excellent cyclability, and rate capability for practical applications.