▎ 摘　　要

NOVELTY - A carbon anode material for sodium ion battery is prepared by carrying out hydrothermal process of disordered low carbon graphite raw material adhered or coated on porous graphene oxide or porous graphite to obtain precursor of carbon material, carrying out carbonization of precursor of carbon material, and preparing activated carbon materials by disordered low carbon graphite material attached or coated with porous graphene. The raw material of disordered low carbon graphite material is lignin. USE - Carbon anode material for sodium ion battery (claimed). ADVANTAGE - The carbon anode material has uniform pore distribution, moderate layer spacing, high porosity, large surface area, high conductivity and high battery performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of carbon anode material for sodium ion battery.