Rationally designed freestanding peapod-like carbon-coated V 2 O 3 nanowire film cathodes enable highly stable aqueous zinc-ion batteries

The unique peapod-like nanostructure of P-V 2 O 3 @C suppresses vanadium dissolution through the synergistic effect of the carbon layer as a physical barrier and V–C bonds with anchoring functionality, thereby achieving excellent cycling stability.