Abstract: The present disclosure relates to a negative electrode for a lithium secondary battery and a lithium secondary battery including the same, and more particularly, to a negative electrode for a lithium secondary battery and a lithium secondary battery including the same, which can improve the lifetime characteristics of the lithium secondary battery, wherein a lithium foil contained in the negative electrode includes LiNO3, and the LiNO3 is uniformly comprised in an inside and on a surface of the lithium foil.

Abstract: The present disclosure relates to a manufacturing method of a lithium metal electrode, and a lithium metal electrode manufactured according to the method, and a lithium secondary battery including the same, and more particularly, to a manufacturing method of the lithium metal electrode including (a) applying fluoroethylene carbonate on at least one surface of a lithium metal layer; and (b) rolling the lithium metal layer applied with the fluoroethylene carbonate to form a lithium fluoride protective layer on the at least one surface of the lithium metal layer.

Abstract: A lithium electrode and a lithium secondary battery comprising the same are provided. The lithium electrode comprises a protective layer, which contains a two-dimensional material and a polymer of intrinsic microporosity, on a surface of a lithium metal layer, and suppresses formation of dendrites and improves the transfer characteristics for lithium ions, thereby providing extended lifetime of the lithium secondary battery.

Abstract: A negative electrode and a lithium secondary battery comprising the same are provided. The negative electrode comprises a three-dimensional carbon structure coated with a fluorine-based polymer, and lithium metal applied on an outer surface and inside of the three-dimensional carbon structure coated with the fluorine-based polymer, and suppresses generation of lithium dendrite, thereby improving lifetime characteristics of the lithium secondary battery.

Abstract: A lithium secondary battery comprising a positive electrode including sulfur, a negative electrode including a Li—Mg alloy, and an electrolyte including a furan-based solvent is provided. The lithium secondary battery has improved lifetime characteristics as growth of lithium dendrites and side reaction between polysulfides leached from the positive electrode and lithium at the negative electrode are suppressed due to interaction of the Li—Mg alloy comprised in the negative electrode and the furan-based solvent comprised in the electrolyte.

Abstract: Disclosed is a positive electrode for a lithium secondary battery and a lithium secondary battery including the same. More particularly, disclosed is a positive electrode for a lithium secondary battery including a sulfur-carbon composite including thermally expanded-reduced graphene oxide as a positive electrode active material and montmorillonite as an additive. The positive electrode for the lithium secondary battery not only has excellent electrochemical reactivity, but also improves the problem due to leaching of lithium polysulfide, thereby improving capacity and lifetime characteristics of the lithium secondary battery.

Abstract: Disclosed is a separator for a lithium-sulfur battery and a lithium-sulfur battery including the same. In particular, disclosed is a separator for a lithium-sulfur battery including a porous substrate and an inorganic coating layer present on at least one surface of the porous substrate wherein the inorganic coating layer includes a modified montmorillonite substituted with at least one specific ion. The separator may include a uniform inorganic coating layer by including a modified montmorillonite, and thus adsorbs lithium polysulfide, thereby improving the capacity and lifetime characteristics of the lithium-sulfur battery.

Abstract: Discussed is a separator for a lithium secondary battery and a lithium secondary battery including the same, more specifically, a separator for a lithium secondary battery including a porous substrate and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a defect-containing molybdenum disulfide. The separator for lithium secondary battery adsorbs lithium polysulfide through the coating layer comprising the defect-containing molybdenum disulfide and suppresses the growth of a lithium dendrite, thereby improving the capacity and lifetime characteristics of the lithium secondary battery.

Abstract: Disclosed is a lithium secondary battery, and in particular, to a lithium secondary battery capable of obtaining higher energy density and longer lifetime compared to existing lithium secondary batteries by specifying conditions of a positive electrode and an electrolyte liquid and additionally surface modifying a carbon material through heat treatment or including a separator including a molybdenum disulfide coating layer.

Abstract: A method of rapidly fabricating a graphene-based nanocomposite using oxidation-reduction and a graphene-based nanocomposite fabricated by the same method. A solution in which a graphene oxide is dispersed is prepared. A source material for a metal oxide is added into the solution in which the graphene oxide is dispersed. A nanocomposite is formed by forming the metal oxide on at least one surface of graphene that is reduced using oxidation-reduction between the graphene oxide and the source material for the metal oxide. The reduction voltage of the source material for the metal oxide is 1.0 V or less.