▎ 摘　　要

NOVELTY - The preparation method of graphene involves (1) taking 0-5 pts. wt. graphene, 0-5 pts. wt. petroleum coke, 3 pts. wt. asphalt, where the total mass ratio of graphene, petroleum coke and asphalt is 8, (2) dry blending graphene and petroleum coke for 30-90 minutes at 170-190 degrees C, mixing and adding asphalt, mixing for 30-90 minutes and heating at 80-120 degrees C, forming semi powder material, (3) feeding the semi powder material into a preform mold cavity, maintaining pressure of molding cavity at 0.2-0.3 MPa, (4) extruding into rod-shaped blank and adjusting size of blank. USE - Preparation of graphene used for production of battery (claimed). ADVANTAGE - The method enables preparation of graphene with high stability used for production of battery with prolonged service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for application of graphene in production of battery, which involves cutting rod-shaped blank, inserting a metal as the positive electrode of battery, equipping metal casing with isolation layer, equipping spacer layer with negative electrode, using zinc sheet as negative electrode material, attaching a copper cap at top side of graphene stick and positioning graphene stick between the negative electrode and electrolyte.