Research progress in modification of nickel-rich LiNi0.8Co0.1Mn0.1O2 cathode material
The nickel-rich cathode material LiNi0.8Co0.1Mn0.1O2 for Li-ion battery has the advantages of high energy density and high safety.Due to the limitations of capacity decay,cycle life and thermal stability,its further modification research has become a hot spot in current research.Research on the modification of LiNi0.8Co0.1Mn0.1O2 material has mainly focused on these aspects:ion doping,surface coating and structural design.Ion doping improves structural stability and electrochemical performance,particularly the doping of transition metal ions,which helps to prolong cycle life and increase structural stability.Surface coating modification can enhance the electrochemical stability and oxidation resistance,prolong cycle life and increase anti-polarization ability.Structural design can optimize crystal structure,increase conductivity and relieve stress,thus increase cycle stability,capacity retention and power density.
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