▎ 摘　　要

NOVELTY - The electrode has a copper foil electrode provided with a porous current collector copper foil, a negative electrode active material and a barrier layer, where the negative electrode active material is supported on the porous current collector copper foil. A side part of a collector porous copper foil is tightly jointed on the porous current collector copper foil, where an active substance of the porous current collector copper foil is loaded on the barrier layer and the barrier layer is graphene. USE - Copper foil electrode for a lithium battery. ADVANTAGE - The electrode effectively increases surface area of a collector, and improves quality of a battery, and reduces current density, and inhibits growth of lithium dendrite crystal. DESCRIPTION OF DRAWING(S) - The drawing shows a side sectional view of a copper foil electrode.