▎ 摘　　要

NOVELTY - Preparing alkali metal squarylate composite material comprises (i) preparing an alkali metal squarylate by reacting an alkaline alkali metal compound with squaric acid; (ii) preparing a conductive carbon material dispersion; (iii) mixing the alkali metal squarylate of step (i) with conductive carbon material dispersion of step (ii) to obtain a mixed dispersion; and (iv) spray-drying mixed dispersion of step (iii) to obtain an alkali metal squarylate-conductive carbon composite material. USE - The method is useful for preparing alkali metal squarylate composite material. ADVANTAGE - The method: realizes the green, energy-saving preparation of alkali metal salt, reduces the alkali metal salt oxidation potential, prepare the composite material, which can be directly added in the alkali metal ion battery anode material process, and does not increase the process cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for alkali metal squarylate composite material, comprising an alkali metal squarylate and conductive carbon material, alkali metal salt is attached to the surface of conductive carbon material, where the alkali metal squarylate composite material is added to the anode metal ion battery to be used as material for supplying alkali metal ions.