Abstract: The present exemplary embodiments relates to a negative electrode for a lithium secondary battery, a manufacturing method thereof, and a lithium secondary battery comprising the same. An exemplary embodiment may provide a negative electrode for a lithium secondary battery comprising current collector and a negative active material layer positioned on at least one surface of the current collector, and comprising a lithium metal layer, wherein the negative active material layer comprising the lithium metal layer, comprises a coating layer positioned on the current collector and comprising a metal seed, and a lithium metal layer positioned on the coating layer.

Abstract: The present invention relates to a lithium metal anode, a method for manufacturing same, and a lithium secondary battery using same. The lithium metal anode include a current collector having a flat structure and an anode active material layer including a lithium metal disposed on the current collector, wherein the lithium metal has a concave-convex structure and no dendrite is present on the surface of the lithium metal.

Abstract: The present invention relates to a sodium secondary battery comprising: an anode container for accommodating sodium; a cathode container for accommodating a cathode active material and a cathode secondary electrolyte; a solid electrolyte positioned between the anode container and the cathode container and selectively moving sodium ions; and a polymer sealing layer formed along the edge of the solid electrolyte and positioned between the solid electrolyte and the anode container and between the solid electrolyte and the cathode container. Since the sodium secondary battery of the present invention uses the polymer sealing layer, an expensive bonding process and an expensive bonding facility are unnecessary, the number of parts of a single cell can be reduced, and a battery manufacturing process can be simplified.

Abstract: One embodiment of the present invention relates to a lithium metal anode. Wherein the lithium metal anode comprises a current collector and a lithium metal thin film layer disposed on at least one surface of the current collector and having a thickness in a range of 0.1 to 200 ?m and a coating layer disposed on a surface of the lithium metal thin film layer, wherein, the coating layer comprising a Li—N—C—H—O based ionic compound.