▎ 摘　　要

NOVELTY - Preparation of carbon-coated sodium titanium phosphate material involves (1) adding graphene oxide, cationic surfactant, carbon source, titanate compound and sodium dihydrogen phosphate into an alcohol solvent to disperse to form a mixed solution, (2) heat-preserving mixed solution, washing and dispersing after cooling, and drying, (3) calcining and sintering dried product. USE - Preparation of carbon-coated sodium titanium phosphate material for use in preparation of cathode sheet for aqueous sodium-ion battery (all claimed). ADVANTAGE - The process is simple, suitable for large-scale industrial production and preparation. The carbon-coated material has good electronic conductivity, exhibits excellent cycle stability and high capacity, and the matched full cell has good cycle stability and voltage around 1.5V. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for application of the carbon-coated sodium titanium phosphate material in the preparation of cathode sheet.