▎ 摘　　要

NOVELTY - The method involves placing a mixture of graphite oxide and lithium carbonate into a muffle furnace under gas protection for reaction to obtain graphene material containing alcohol-based lithium. The graphene material containing alcohol-based lithium, a conductive agent, and a binder are added into NMP in proportion to be mixed into slurry. The slurry is coated on a positive electrode sheet (2) comprising active material. The positive electrode sheet is dried to obtain a positive electrode sheet (3) comprising a graphene coating containing alcohol-based lithium. USE - Method for preparing a positive electrode sheet of a lithium ion ultra-capacitor. ADVANTAGE - The method enables using the positive electrode sheet comprising the graphene coating containing the alcohol-based lithium as the positive electrode of a lithium ion super capacitor, so that the negative electrode does not need addition of lithium sheet or complex lithium pre-intercalation process, thus simplifying preparation process and reducing costs. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a positive electrode sheet. Collector (1) Positive electrode sheets (2, 3)