Enhanced electrochemical performance of hierarchical CoFe2O4/MnO2/C nanotubes as anode materials for lithium-ion batteries

摘要: Hierarchical CoFe2O4/MnO2/C nanotubes were prepared by electrospinning and a subsequent hydrothermal method. Their electrochemical properties investigated for use as anode materials lithium-ion batteries. The composite displayed stable cycling performance with reversible capacity of 713.6 mA h g−1 after 250 discharge–charge cycles at current density 100 g−1, much higher than that CoFe2O4/C nanofibers, which 200 90 cycles. improved could be ascribed to the hierarchical structure nanocomposite, existence carbon, high active surface area, theoretical MnO2. Given their enhanced performance, heterostructure can considered promising