NOVELTY - A method for manufacturing a micropolymer-patterned current collector (4), involves preparing a solution in which a polymer resin is dissolved in a solvent; coating the polymer solution on a current collector and drying the same; preparing a mixture solvent by diluting the solvent in first step with a non-solvent; and treating a substrate on which the polymer solution is coated with the mixture solvent and drying the same.    USE - For manufacturing a micropolymer-patterned current collector used in negative electrode for a lithium secondary battery, in single-cell battery and multiple-cell battery (claimed); and for storage of renewable energy, ubiquitous power source, power supply for machinery and vehicles. The battery is used as power supply source of light and large-sized mobile devices.    ADVANTAGE - Using the method, silicon nanostructured material with theoretical storage capacity of energy resulting from electrochemical reaction with lithium improved more than 10 times as compared to the existing graphite material and having superior output characteristics is formed. The physical stability of the electrode active material is improved and electrode with high performance is obtained. Since more energy can be stored as compared to the graphite material of the same thickness and high-output performance is achieved through the nanostructure, energy density is remarkably improved as compared to the existing lithium-ion battery by about 2 times. The method provides a high-performance electrode material so that shape control of an electrode active material on electrode surface is possible. The method forms electrode capable of maintaining high voltage of an electrode cell by using a micropatterned electrode active material allowing reversible reactions between lithium ion and the active material for a long time and exhibiting high capacity of about 2 times per unit volume. The maximized contact area with silicon, which is the electrode active material, enhances physical adhesion and thus improves mechanical stability of the electrode active material. The increased contact area between the electrolyte and the electrode active material and between the electrode active material and the current collector increases transport of lithium ions per unit time and thus improve electrode efficiency. Since the lithiated silicon material experiences less shear stress, the stress associated with volume change accompanying the reaction with lithium is reduced and thus the electrode stability is improved. Since the lithiated porous silicon electrode has superior energy density per unit volume and exhibits very superior cycle performance even under high electrical current, a lithium-ion secondary battery comprising the same satisfies both high-capacity and high-output characteristics and may be used as power supply source of light and large-sized mobile devices.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following:    (1) a method for manufacturing a negative electrode for a lithium secondary battery, involving: performing electroless copper plating on a micropolymer pattern formed on a micropolymer-patterned current collector; removing the polymer pattern and forming an electrode active material on the current collector by chemical deposition or physical deposition; and modifying the surface of the electrode active material. The current collector is a porous copper current collector;    (2) a single-cell battery comprising one lithiated negative electrode manufactured by the method and one positive electrode comprising activated carbon; and    (3) a multiple-cell battery comprising 2-10 lithiated negative electrodes manufactured by the method and 2-10 positive electrodes comprising activated carbon stacked alternatingly.    DESCRIPTION OF DRAWING(S) - The figure shows schematic view illustrating multiple-cell battery comprising 4 electrodes.    Aluminum pouch (1)    Lithium metal (2)    Separator (3)    Current collector (4)    para-Silicon (5)    Activated carbon (6)    Electrolyte (7)