▎ 摘　　要

NOVELTY - The cathode has a graphene layer which is formed on a current collector. A graphite-based active material layer is formed on the graphene layer. A silicon layer is formed on the graphite-based active material layer. The current collector is comprised of copper. The graphite-based active material layer is made of graphite-based active material, conductive material, and binder. The graphite-based active material is selected from a group consisting of natural graphite, artificial graphite, soft carbon, and hard carbon. USE - Cathode of secondary battery such as lithium-ion secondary battery mounted in battery pack of mobile electric device, electric vehicle, hybrid electric vehicle, plug-in hybrid electric vehicle or power storage system (all claimed). ADVANTAGE - Since the graphene layer is formed on the current collector, the adhesive force and electrical conductivity between the graphite-based active material layer on the graphene layer and the current collector are improved. Since the silicon layer is formed on the surface of the graphite-based active material layer, the lithium precipitation is effectively prevented, the charging and discharging efficiency is improved, and battery capacity is improved, by active Faradaic reaction at the interface between the electrode and the separator. The high power output efficiency and the high safety of the battery are ensured. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a cathode manufacturing method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram illustrating the cross-section of the cathode. (Drawing includes non-English language text)