▎ 摘　　要

NOVELTY - Negative electrode current collector comprises a metal current collecting substrate, a conductive layer formed on surface of the metal current collecting substrate, and an auxiliary layer formed on the conductive layer, where the conductive layer includes a conductive material and auxiliary layer increases the electrodeposition density of lithium. USE - Negative electrode current collector for use in lithium-free battery (claimed), which is utilized for portable devices, such as portable computers, telephones and cameras. ADVANTAGE - The negative electrode current collector is eco-friendly and provides lithium-free battery with increased electrodeposition density and lifespan characteristics. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) an electrode assembly, which comprises the negative electrode current collector, a positive electrode having a structure in which a positive electrode mixture including an active material is applied on surface of positive electrode current collector, a separator interposed between the negative electrode current collector and the positive electrode; and (2) a lithium-free battery, which comprises a positive electrode, negative electrode, separator and a lithium non-aqueous electrolyte.