▎ 摘　　要

NOVELTY - Preparation of electrode composite material comprises using graphene oxide as a substrate in a three-dimensional shape, attaching polyaniline and carbon quantum dots as an active material on the substrate. USE - The electrode composite material is useful for self-supporting three-dimensional graphene oxide/polyaniline/carbon quantum dot. ADVANTAGE - The method enables to prepare electrode composite material that reduces multi-cycle discharge loss rate. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) an electrode; and (2) a capacitor. DESCRIPTION OF DRAWING(S) - The drawing shows a microscopic view of the composite electrode material (Drawing includes non-English language text).