▎ 摘　　要

NOVELTY - Anode material comprises sodium, vanadium and phosphorus formula of (I), is new. USE - The anode material is useful in pole piece and sodium ion battery. ADVANTAGE - The material has better electrical conductivity through reasonable control of the fluorine-oxygen ratio in the anode material, and realizes electrochemical performance e.g. super-large rate charge and discharge. DETAILED DESCRIPTION - Anode material comprises sodium, vanadium and phosphorus formula of Na3+xV2P2O10-2xFM2x(I), where M is an ion or an ion group with negative monovalent valence, and x=0-1. INDEPENDENT CLAIMS are included for: Preparation method of anode material. Pole piece, comprising the anode material. Sodium ion battery, comprising the pole piece.