We proposed a simple but effective method to synthesize a peony-like Ag/Ag0.68V2O5 hybrid and explored the effects of its unique hierarchical structure on the superior cycling stability as electrode material for rechargeable lithium batteries.
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.