A facile synthesis and electrochemical performance of Na0.6Li0.6 [Mn0.72Ni0.18Co0.10]O2 as cathode materials for Li and Na ion batteries

• The Na0.6Li0.6 [Mn0.72Ni0.18Co0.10]O2 composite is easily synthesized by molten-salt method.
• The discharge capacities of cathode materials exhibited 284 mAh g−1 for Li and 237 mAh g−1 for Na ion battery.
• As synthesized NLNCM composite highest electrochemical performance in Na-ion battery.

The Na0.6Li0.6[Mn0.72Ni0.18Co0.10]O2 with well crystallized and high specific capacity is prepared by doping of Na and Li for Li and Na ion battery. The Na0.6Li0.6[Mn0.72Ni0.18Co0.10]O2 composite is easily synthesized by molten-salt method. The effects of annealing temperature, time, Na contents, and electrochemical performance are investigated. In XRD analysis, the substitution of Na-ion resulted in the P2–Na2/3MO2 structure (Na0.70MO2.05), which co-exists in the Na0.6Li0.6[Mn0.72Ni0.18Co0.10]O2 composites. The discharge capacities of cathode materials exhibited 284 mAh g−1 for Li and 237 mAh g−1 for Na ion battery with higher initial coulombic efficiency.

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