▎ 摘　　要

NOVELTY - A graphene electrode piece preparing method involves treating liquid crystal graphene oxide with needle and placing in ethyl acetate to obtain graphene oxide filament. The graphene oxide filament is placed in petri dish, placed in oven. The graphene filamentary material is placed in mortar for grinding to obtain graphene particles. The graphene particles are placed in electrostatic flocking apparatus to obtain resulting material. The resulting material is placed in vacuum drying oven at 40-80 degrees C for 8-12 hours to obtain the finished product. USE - Method for preparing graphene electrode piece for use in lithium ion battery. ADVANTAGE - The method enables preparing graphene electrode piece with excellent charge and discharge circuit circulation performance and high capacity. DETAILED DESCRIPTION - A graphene electrode piece preparing method involves treating 5-10 mass% liquid crystal graphene oxide with needle having a diameter of 100-100 mu m and placing in ethyl acetate to obtain graphene oxide filament. The graphene oxide filament is placed in a glass petri dish, placed in oven at 40-80 degrees C for 4-8 hours to obtain graphene filamentary material. The graphene filamentary material is removed from the Petri dish, placed in mortar for grinding to obtain graphene particles. The graphene particles are placed in electrostatic flocking apparatus to obtain resulting material. The resulting material is placed in vacuum drying oven at 40-80 degrees C for 8-12 hours to obtain the finished product.