Abstract: The present disclosure is an electrolyte solution for a lithium secondary battery and a method of preparing the same. The electrolyte solution enhances the output performance and high-temperature life characteristics of a lithium secondary battery, especially a lithium secondary battery including LiFePO4 (LFP)-based positive electrode active material, using 1-(trimethylsilyl)-1H-benzotriazole and similar additives.

Abstract: Proposed is an additive for an electrolyte solution to improve the electrochemical properties of a lithium secondary.

Abstract: The present disclosure provides an electrolyte for a lithium secondary battery capable of improving the lifespan characteristics and output characteristics of a high capacity lithium secondary battery and a lithium secondary battery including the same.

Abstract: In an electrolyte for the lithium secondary battery, which is used in forming protective layers on the surfaces of positive and negative electrodes, the electrolyte contains 1-vinyl-1,2,4-triazole additives. In the instant case, vinylene carbonate further contained in the additives stabilizes the protective layer on the surface of the negative electrode, and 1,3-propane sultone further contained in the additives stabilizes the protective layer on the surface of the positive electrode, thereby improving the long-term life performance and high-temperature life characteristics of the lithium secondary battery.

Abstract: A graft copolymer is formed by graft polymerization of a main chain containing dextran and a side chain containing N-(hydroxymethyl) acrylamide, wherein the graft copolymer is used as a binder for a lithium secondary battery anode to effectively buffer a large volume change during the charge/discharge of an anode, a silicon-based anode, improving mechanical stability, rate capability, and charge/discharge cycling stability of the anode, thus remarkably improving charge/discharge performance and cycle life characteristics of a battery using the same, and the graft copolymer can be produced through radical polymerization securing high reproducibility and simple production.

Abstract: An additive for an electrolyte solution improves the electrochemical properties of a lithium secondary battery.

Abstract: According to embodiments, a binder for a lithium secondary battery comprises a mixture of dextran and gallic acid obtained through physical stirring. As an example, the binder can be prepared by dissolving dextran in a solvent to form a dextran solution, adding gallic acid to the dextran solution, and, after the adding of the gallic acid to the dextran solution, physically mixing the dextran solution including the added gallic acid to form a mixture.

Abstract: Disclosed are an electrolyte solution and an additive thereof, which may improve electrochemical properties of a lithium secondary battery.

Abstract: Disclosed are a secondary battery positive electrode including a ferroelectric component and a method of manufacturing the same. The method of manufacturing the secondary battery positive electrode may use a low-priced material as the ferroelectric, so process efficiency may be improved. In addition, the secondary battery positive electrode includes the ferroelectric, such that the output performance of a secondary battery including the same may be improved while increasing the capacity at a high charge rate of the secondary battery.

Abstract: An embodiment electrolyte solution includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes 4-((tert-butoxydimethylsilyl)methyl)-5-methyl-1,3-dioxol-2-one represented by as an electrode film additive. An embodiment lithium secondary battery includes the above-described electrolyte solution, a positive electrode including a positive electrode active material including Ni, Co, and Mn, a negative electrode including a carbon-based negative electrode active material or a silicon-based negative electrode active material, and a separator interposed between the positive electrode and the negative electrode.

Abstract: An embodiment electrolyte solution includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes an electrode film additive of 2-(dodec-1-en-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane represented by An embodiment lithium secondary battery includes this electrolyte solution, a positive electrode including a positive-electrode active material including Ni, Co, and Mn, a negative electrode including a negative-electrode active material including a carbon (C)-based material or a silicon (Si)-based material, and a separator interposed between the positive electrode and the negative electrode.

Abstract: The present disclosure relates to an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes a first negative-electrode film additive, which is silver p-toluenesulfonate.

Abstract: Disclosed are an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, and in particular, the functional additive includes (4-(1H-1,2,4-triazol-1-yl)phenyl)(fluorosulfonyl)sulfamoyl fluoride.

Abstract: The present disclosure relates to an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes a positive-electrode film additive, which is 3-(4-cyano-5-(4-nitrophenyl)-1H-1,2,3-triazol-1-yl)propyl methanesulfonate.

Abstract: The present disclosure relates to an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes a first electrode film additive, which is 3-(4-cyano-5-(4-nitrophenyl)-1H-1,2,3-triazol-1-yl)propyl 4-methylbenzenesulfonate.

Abstract: Disclosed are an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. The electrolyte solution includes a lithium salt, a solvent, and a functional additive. The functional additive includes benzo[d]thiazol-6-yl(fluorosulfonyl)sulfamoyl fluoride.

Abstract: The present disclosure relates to an electrolyte solution for a lithium secondary battery capable of improving the output and lifespan characteristics at high temperature of a lithium secondary battery, and a lithium secondary battery including the same. An electrolyte solution for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive, wherein the functional additive includes a negative-electrode film additive, which is silver p-toluenesulfonate.

Abstract: Disclosed is a positive electrode material for a lithium secondary battery. The positive electrode material includes a positive electrode active material formed of Li—[Mn—Ti]-M-O-based material including a transition metal (M) to enable reversible intercalation and deintercalation of lithium and molybdenum oxide. The positive electrode active material is coated with the molybdenum oxide to form a coating layer on a surface thereof.

Abstract: Disclosed are a positive electrode additive material for a lithium secondary battery having an enhancement in atmospheric stability, a method for preparing the same, and a positive electrode for a lithium secondary battery including the same. The positive electrode material includes an core including a lithium component, and a coating layer formed on a surface of the core and including a compound having a formula of LiM?O3 wherein M? is Ta or Nb.

Abstract: Disclosed herein are an electrolyte for a lithium secondary battery, which can enhance lifetime and output characteristics in a high-capacity lithium secondary battery, and a lithium secondary battery including the same. The electrolyte for a lithium secondary battery may include a lithium salt, a solvent, and a functional additive, wherein the functional additive includes 5,5-diallyl-3-(tert-butyldimethylsilyl)oxazolidin-2-one as a positive electrode film additive.