Tailoring Local Chemistry of O3-Type Ni/Fe/Mn-Based Layered Oxide Cathodes for High-Performance Sodium-Ion Batteries

The promising development potential of sodium-ion batteries (SIBs) as complementary candidates to lithium-ion batteries (LIBs) for large-scale energy storage systems calls for a more fundamental investigation and performance optimization of layered transition metal (TM) oxide cathode materials. However, insufficient rate capability and rapid capacity decay have hindered the potential application of low-cost O3-type Ni/Fe/Mn-based layered oxides. Herein, a universal strategy using the multifunctional rare earth elements (REs = Lu, Yb, Er, etc.) as cationic dopants for NaNi1/3Fe1/3Mn1/3O2 cathodes to manipulate the intrinsic local chemical environment has been successfully reported, which effectively stabilizes…

• NN
  National Natural Science Foundation of China

  Award: grant nos. 52202235
• NC
  North China Electrical Power University

  Award: XM2212315