▎ 摘　　要

NOVELTY - Vanadium-based sodium ion battery anode material, comprises sodium vanadium phosphate (Na3V2(PO4)3) and carbon-based materials embedded in Na3V2(PO4)3main body structure in which mass fraction of carbon-based material is 1-10 %. USE - The vanadium-based sodium ion battery anode material is useful for preparing sodium battery electrodes and sodium batteries (all claimed). ADVANTAGE - The vanadium-based sodium ion battery anode material has simple preparation and modification method by introducing carbon conductive material e.g. cellulose nanofibers (CNFs) and has no harmful waste or waste liquid during preparation process. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: Preparing vanadium-based sodium ion battery anode material; Sodium battery electrode; and Sodium battery.