▎ 摘　　要

NOVELTY - Preparation of nickel sulfide/graphene/polyaniline composite electrode material comprises preparing polyaniline functionalized graphene sheets through in-situ polymerization by adding aniline and sodium dodecyl sulfate in water, ultrasonic dispersing graphene oxide, stirring in ice water bath, adding ammonium persulfate with hydrochloric acid, acidifying, stirring, centrifuging, and washing; and dispersing polyaniline functionalized graphene sheets in hydrochloric acid solution, adding water and thioacetamide solution, sonicating, hydrothermal reacting, centrifuging, washing and freezing. USE - Method for preparing nickel sulfide/graphene/polyaniline composite electrode material (claimed) used for lithium ion battery. ADVANTAGE - The method improves stability and control of material, and improves performance of lithium ion battery. DETAILED DESCRIPTION - Preparation of nickel sulfide/graphene/polyaniline composite electrode material comprises preparing polyaniline functionalized graphene sheets through in-situ polymerization by adding aniline and sodium dodecyl sulfate in water, dispersing, ultrasonic dispersing graphene oxide, sonicating for 10-50 minutes to form stable and uniform mixed solution, stirring in ice water bath, adding ammonium persulfate with 1 mol/L hydrochloric acid, acidifying, stirring for 10-20 hours, centrifuging, and washing for 3-5 times; and dispersing polyaniline functionalized graphene sheets in 1 mol/L hydrochloric acid solution, adding water and thioacetamide solution, sonicating, placing mixed solution in hydrothermal kettle, hydrothermal reacting for 12 hours at 180 degrees C, centrifuging, washing and freezing.