Na3V2(PO4)3 and hard carbon have been synthesized by an easily scalable approach and a biomass method , respectively.
Na3V2(PO4)3 cathode exhibits excellent rate and cycling performance for sodium half cells.
Na3V2(PO4)3//hard carbon full cell with suppressed polarization has been successfully fabricated.
The promoted electrical transport behaviors and carrier transmission dynamics lead to the improved performance.