▎ 摘　　要

NOVELTY - Preparing FCC oil slurry base porous graphene material comprises extracting and separating FCC oil slurry with extractant to obtain aromatic components, removing a small amount of asphaltene in the FCC oil slurry in the form of dross precipitation, (b) further mixing the aromatic hydrocarbon component with a crosslinking agent and a catalyst, catalytically crosslinking the aromatic hydrocarbon molecules through a cationic electrophilic substitution reaction to obtain a polyaromatic hydrocarbon intermediate, (c) using the polyaromatic intermediate as a raw material, and preparing the FCC oil slurry-based porous graphene material by a hard template method. USE - The method is useful for lithium ion battery lcathode material (claimed). ADVANTAGE - The fluid catalytic cracking oil slurry raw material has low price, wide source, the graphene material product hole structure is controllable, the specific surface area is large, impurity content is small, as lithium ion battery material cathode excellent electrochemical performance, has good scale preparation and application market prospect.