▎ 摘　　要

NOVELTY - Preparing sodium titanium phosphate of positive pole, comprises (1) crushing sodium titanium phosphate, anode sodium supplement additive, conductive agent, and binding agent and mixing with different mass ratios to obtain a mixture, (2) adding N-methyl-2-pyrrolidone as a solvent to the mixture, fully stirring until there is no grain feeling to obtain a mixed slurry, (3) coating the mixed slurry on an aluminum foil, and drying in a vacuum to obtain a sodium titanium phosphate electrode, (4) assembling the battery with sodium titanium phosphate electrodes, first charging to a high potential of 2-4.3V, discharging, after 1-10 cycles in the normal charge and discharge interval of the battery to form a stable SEI film, and obtaining the sodium-rich phase sodium titanium phosphate anode, where the specific times of sodium supplementation and sodium supplementation voltage can be adjusted depending on the decomposition of the anode sodium supplementation additive. USE - The method for preparing sodium titanium phosphate of positive pole useful in sodium ion battery (claimed). ADVANTAGE - The method is simple and convenient to operate, low cost and suitable for large-scale industrial production. The battery prepared using the method exhibits excellent charge/discharge specific capacity, cycling stability and rate capability.