1D hybrid metal coordination polymer-derived hierarchical Co1-xS/MnS/NC nanowires for advanced sodium-ion batteries.

ABSTRACT

Hierarchical Co1-xS/MnS/NC nanowires have been successfully prepared by a simple hydrothermal reaction and the subsequent annealing process of its one-dimensional (1D) coordination polymer precursors. The Co1-x/MnS/NC heterostructure nanowires can not only buffer the volume expansion during the discharging and charging process but also conspicuously enhance electronic conductivity, which is favourable for improving the rate performance and cycling stability, which can maintain 612.9 mA h g-1 after 100 cycles at 0.5 A g-1 and 544.6 mA h g-1 after 200 cycles at 1.0 A g-1 for SIBs.