▎ 摘　　要

NOVELTY - The collector has a copper foil base layer and a lithium battery negative electrode lithium-philic material coating coated on the copper foil base layer. The lithium-ion battery negative electrode lithium-philic material coating contains several micrometer-sized three-dimensional spherical structures. The lithium battery negative electrode lithium-philic material coating is composed of carbon material, lithium-philic metal oxide, binder, and lithium salt; according to mass fraction, said carbon material, said lithium-philic metal oxide, and the mass ratio of the binder to the lithium salt is 5-35%: 75-45%: 15-5%: 5-15%. USE - Three-dimensional composite current collector. ADVANTAGE - The three-dimensional composite current collector can effectively reduce the current density of the lithium metal cathode, to effectively relieve and reduce the generation of lithium dendritic crystal, and improve the cycle performance and safety performance of the lithium metal battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing a three-dimensional composite current collector. DESCRIPTION OF DRAWING(S) - The drawing shows an electron micrograph of the three-dimensional spherical structure of the three-dimensional composite current collector.