▎ 摘　　要

NOVELTY - A graphene-modified conductive polymer gel-coated metal nanoparticles preparing method involves dispersing 0.5-3.5 mg/ml tin-nickel nano-particles in oxidized graphene aqueous solution with mass ratio of 20-40:1 ultrasonically to obtain a solution-I. The solution-I is stirred with phytic acid and pyrrole having volume ratio of 1:1:30-4:1:25 to obtain a solution-II. The solution-II is mixed with 25-45 mass% ammonium persulfate for 8-15 minutes, followed by washing the mixed particle with distilled water and lyophilizing to obtain the finished product. USE - Method for preparing graphene-modified conductive polymer gel-coated metal nanoparticles for cathode material of lithium ion battery. ADVANTAGE - The method enables preparing the graphene-modified conductive polymer gel-coated metal nanoparticles with high cycle stability and long service life.