NOVELTY - The method comprises preparing a surface of a substrate material, forming conductive nanostructures on the surface of the substrate material via an electro-deposition without using a template at a temperature of greater than 40 degrees C, and controlling operating conditions of the electro-deposition based on a target profile for the conductive nanostructures formed on the surface of the substrate, where the target profile includes the conductive nanostructures forming freestanding structures. The forming step includes forming conductive or tin nanoneedles on the surface of the substrate material.    USE - The method is useful for producing an anode for a lithium-ion battery, which is useful in a chemical sensor, an organic thin film transistor, an electromechanical actuator, a gas separation membrane, a fuel cell, and/or other electronic components and for defense, automotive, and aerospace applications.    ADVANTAGE - The method is capable of effectively and economically producing the anode for the lithium-ion battery with improved energy density and charging capacity.    DETAILED DESCRIPTION - The method comprises preparing a surface of a substrate material, forming conductive nanostructures on the surface of the substrate material via an electro-deposition without using a template at a temperature of greater than 40 degrees C, and controlling operating conditions of the electro-deposition based on a target profile for the conductive nanostructures formed on the surface of the substrate, where the target profile includes the conductive nanostructures forming freestanding structures. The forming step includes forming conductive or tin nanoneedles on the surface of the substrate material via electro-deposition without using the template. An INDEPENDENT CLAIM is included for a lithium-ion battery.    DESCRIPTION OF DRAWING(S) - The figure shows a flowchart of a method for producing an anode for a lithium-ion battery.    Preparing substrate (202)    Growing nudeation layer (206)    Growing nanostructure (208)    Adjusting deposition condition. (210)