The core–shell structure greatly suppressed the shuttle effect of the lithium–selenium battery and the robust carbon shells could remain unbroken even after 100 cycles and flexibly accommodate to the volume change of selenium cores.
A perfectly intact ZIF-67-derived NiCo2O4 shell had been decorated on a Co3O4 nanowire core. Due to the specific core–shell structure, the resulting hybrid nanowire array exhibited remarkable electrochemical properties.
