▎ 摘　　要

NOVELTY - Preparing titanate (H1.07Ti1.73O4)/reduced graphene oxide composite sodium ion battery cathode material comprises (i) preparing potassium lithium titanate (K0.81Li0.27Ti1.73O4) powder, (ii) adding sodium chloride powder and poly(diallyldimethylammonium chloride) solution into deionized water, and stirring to obtain ionized aqueous solution, (iii) adding the prepared potassium lithium titanate powder into the ionized aqueous solution, and vigorously stirring for 60 minutes to obtain potassium lithium titanate (K0.81Li0.27Ti1.73O4) suspension, (iv) preparing graphene oxide solution, adding the obtained potassium lithium titanate suspension into the graphene oxide solution drop by drop, and vigorously stirring at room temperature for 24 hours to obtain precipitate, and (v) washing the obtained precipitate, placing the precipitate in a reaction kettle, performing hydrothermal reaction, and freeze-drying to obtain final product. USE - The composite is useful as cathode material in sodium ion battery cathode. ADVANTAGE - The composite has excellent rate performance and cycle stability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for titanate (H1.07Ti1.73O4)/reduced graphene oxide composite sodium ion battery cathode material prepared by above method, where the cathode material is composite structure in which H1.07Ti1.73O4 micron particles are supported on the surface of reduced graphene oxide and connected to each other to form a network structure.