▎ 摘　　要

NOVELTY - Preparing an anode involves: mixing a precursor material including phosphorus, silicon, tin, antimony and/or tin dioxide, conductive agent, binder and solvent to obtain an anode slurry; coating the slurry on a current collector, and drying to obtain an initial anode including current collector and an anode film attached to the collector; assembling the initial anode, sodium-containing cathode, electrolyte, and separator to form an initial sodium metal full battery; and charging and discharging (A) the battery, and subjecting the precursor material in the film and sodium metal deposited on the anode film to in-situ alloying reaction to obtain product. The anode film contains conductive agent, binder, and precursor material. The voltage of the charging step (A) is 3.6-4.3 V. The cut-off voltage of the discharging step (A) is 1.6-2.4 V. The anode includes the current collector. The anode film is sodium phosphide, sodium silicide, tin-sodium alloy, and/or antimony sodium alloy. USE - The method is useful for preparing anode used in sodium metal full battery (all claimed) used in electrochemical energy storage technology application. ADVANTAGE - The method is low in cost, and simple in operation, can be carried out industrially on a large scale, and provides anode, which has high yield, and sodium metal full battery, which has high capacity and high power density. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a sodium metal full battery.