Synthesis and electrochemical performances of MnxCoyNizCO3 as novel anode material
Hydrothermal method was used to synthesize Mn x Co y Ni z CO3 with morphology of microspheres. When the reactants MnSO4·H2O, CoSO4·7H2O and NiSO4·6H2O were in the molar ratio of 0.54:0.13:0.26, the product was Mn0.756Co0.133Ni0.111CO3, demonstrating the best electrochemical performances among all the prepared samples. The reversible discharge capacity of Mn0.756Co0.133Ni0.111CO3 maintained at 754mAhg-1 after 200 cycles at the current density of 100mAg-1 in the voltage range of 0.01-3V. The ternary manganese-nickel-cobalt carbonates with suitable composition could be used as novel anode material for lithium-ion battery application.