▎ 摘　　要

NOVELTY - The preparation method of polypyrrole/graphene composite material involves adding graphene to 100 ml deionized water and then adding sodium dodecylbenzenesulfonate surfactant and ultrasonically oscillating to form uniformly dispersed graphene solution, adding 60 mg glucose to the graphene solution, stirring for 10 minutes, then adding 1 ml concentrated aqueous ammonia and continuously stirring at 100 degrees C for 2 hours, adding 100 mu l polypyrrole reagent to the solution and magnetically stirring for 1 hour, then adding 100 mu l concentrated hydrochloric acid and ultrasonically shaking for 10 minutes, placing the solution in a refrigerator at 0 degrees C for 8 hours and then centrifuging in a high-speed centrifuge for 5 minutes to collect the precipitate and suspended substance in the solution, vacuum drying collected black material at 100 degrees C for 48 hours and then grinding by an agate mortar. USE - The method is useful for preparing polypyrrole/graphene composite material, which is useful as electrode material for lithium ion battery. ADVANTAGE - The method enables preparation of polypyrrole/graphene composite material with excellent cycle stability.