Abstract: A non-aqueous electrolyte includes a lithium, an organic solvent, and an additive. The additive includes a compound having a cyclic borate-based substituent and an oxazolidone-based matrix substituted with a fused ring, so that a lithium secondary battery applying the same has improved high-temperature cycle characteristics and high-temperature storage characteristics, thereby improving overall performance.

Abstract: A non-aqueous electrolyte includes a lithium, an organic solvent, and an additive. The additive includes a compound having a cyclic borate-based substituent and an oxazolidinedione-based matrix, so that a lithium secondary battery applying the same has improved high-temperature cycle characteristics and high-temperature storage characteristics, thereby improving overall performance.

Abstract: The present disclosure relates to a lithium secondary battery comprising a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and a non-aqueous electrolyte. The non-aqueous electrolyte includes an organic solvent, a lithium salt, a coumarin-based compound represented by [Chemical Formula 1], and a halogen-substituted cyclic carbonate, and the positive electrode active material includes a lithium manganese-rich oxide represented by [Chemical Formula 2].

Abstract: The present disclosure relates to a non-aqueous electrolyte for a lithium secondary battery, including a lithium salt, an organic solvent and a compound represented by Chemical Formula 1; and a lithium secondary battery including the same, wherein R1, R2, L and m are described herein.

Abstract: Provided is a non-aqueous electrolyte including a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by the following Formula 1: wherein in Formula 1 above, R1 is an allyl group or a propargyl group; R2, R3, R4 and R5 are each independently selected from hydrogen and or an alkyl group having 1 to 5 carbon atoms; L is a single bond or an alkylene group having 1 to 10 carbon atoms; and X is —C(?O)—, —S(?O)— or —S(?O)2—.

Abstract: Provided is a lithium secondary battery including a positive electrode; a negative electrode; a separator disposed between the positive electrode and the negative electrode; and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode active material, the positive electrode material includes a perlithium manganese-rich oxide containing about 50 mol % or more of Mn based on all metal elements excluding lithium, and having a molar ratio of lithium to all transition metals exceeding about 1, and the non-aqueous electrolyte includes a lithium salt, a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2: wherein all the variables are described herein.

Abstract: Provided is a non-aqueous electrolyte comprising a lithium salt; an organic solvent; and a compound represented by Formula 1 as an additive: wherein in Formula 1, R1 may be an alkyl group having 1 to 5 carbon atoms and optionally being substituted with fluorine, an aryl group having 6 to 8 carbon atoms and optionally being substituted with fluorine, or a nitrile group; and R2 to R4 are each independently an alkyl group having 1 to 5 carbon atoms.

Abstract: The present disclosure relates to a lithium secondary battery comprising a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and a non-aqueous electrolyte. The non-aqueous electrolyte includes an organic solvent, a lithium salt, a coumarin-based compound represented by [Chemical Formula 1], and a halogen-substituted cyclic carbonate, and the positive electrode active material includes a lithium manganese-rich oxide represented by [Chemical Formula 2].

Abstract: The present invention relates to a non-aqueous electrolyte solution additive capable of improving lifespan characteristics of a lithium secondary battery by forming a solid-electrolyte interphase that is stable even at a high temperature and has low resistance when applied to a non-aqueous electrolyte solution, and relates to a non-aqueous electrolyte solution additive including a sultone-based compound represented by Formula I, a non-aqueous electrolyte solution including the same, and a lithium secondary battery.

Abstract: A non-aqueous electrolyte includes: a lithium salt; an organic solvent; and an additive, wherein the additive includes a compound represented by Formula 1 below, and such non-aqueous electrolyte may have excellent effects of film protection, O2 scavenging, and HF scavenging of the electrodes, and thus may improve cycle characteristics and high-temperature storage characteristics of the lithium secondary battery including the non-aqueous electrolyte: all the variables are described herein.

Abstract: A non-aqueous electrolyte may include: a lithium salt; an organic solvent; and an additive, wherein the additive includes a compound represented by Formula 1 below, and such non-aqueous electrolyte may have effects of film protection and HF scavenging of the electrodes, and thus may improve cycle characteristics and high-temperature storage characteristics of the lithium secondary battery including the non-aqueous electrolyte: all the variables are described herein.

Abstract: A non-aqueous electrolyte comprises a lithium salt, an organic solvent, and an additive, wherein the additive includes a compounds represented by Formula 1, and such non-aqueous electrolyte may be capable of suppressing the degradation of the positive electrode, reducing side reactions between the positive electrode and the electrolyte, and forming a stable SEI film on the negative electrode, thereby improving high-temperature cycle properties and high-temperature storage properties: wherein all the variables are described herein.

Abstract: A non-aqueous electrolyte includes a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by Formula 1 below, and such non-aqueous electrolyte may be excellent in electrode film protection and an O2 scavenging effect, so that cycle properties and resistance properties of a lithium secondary battery including the non-aqueous electrolyte may be simultaneously improved: all the variables are described herein.

Abstract: Provided are a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound represented by Formula 1, a lithium salt, and an organic solvent; and a lithium secondary battery including the same: wherein the variables are described herein.

Abstract: A positive electrode of a secondary battery includes: a positive electrode active material layer, which in turn includes a positive electrode active material, a conductive material, a binder, and a positive electrode additive. The positive electrode additive includes substituents with a cyclic sulfonic ester (sultone) or cyclic sulfate structure, so that the oxygen release from a positive electrode active material is suppressed, which improves the structural stability of the positive electrode active material.

Abstract: The present disclosure provides a non-aqueous electrolyte and a lithium secondary battery including the same. The non-aqueous electrolyte of the present disclosure includes a lithium salt, an organic solvent, and an additive.

Abstract: Provided are a non-aqueous electrolyte including a lithium salt, an organic solvent, and an additive, wherein the additive includes a compound represented by Formula 1 below and lithium difluoro(oxalato)borate (LiODFB), and the organic solvent includes ethylene carbonate (EC), propylene carbonate (PC), ethylene propionate (EP), and propyl propionate (PP): In Formula 1 above, n is an integer of 3 to 10.

Abstract: The present disclosure relates to a non-aqueous electrolyte including lithium salts, an organic solvent, and an additive including a first additive and a second additive. Each of the first additive and the second additive includes a compound represented by a specific Formula.

Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery comprising the same are provided. The non-aqueous electrolyte solution for a lithium secondary battery of the present disclosure includes a lithium salt, an organic solvent and a compound represented by Formula 1 as a first additive, thereby improving the high-temperature storage characteristics of the secondary battery: wherein all the variables are described herein.

Abstract: A non-aqueous electrolyte and a lithium secondary battery including the same are disclosed herein. The non-aqueous electrolyte may be used in a high-voltage battery to achieve excellent life characteristics. In some embodiments, a non-aqueous electrolyte includes an organic solvent, a lithium salt, a compound represented by Formula 1, and a compound represented by Formula 2, wherein, when an amount of the compound represented by Formula 1 is X wt % and an amount of the compound represented by Formula 2 is Y wt % based on a total weight of the non-aqueous electrolyte, X and Y satisfy X+Y?5 and X?Y, CN—R1—CN??[Formula 1] R1 is an unsaturated hydrocarbon group n is an integer of 1 or 2, and R2 is hydrogen, an unsubstituted or substituted alkyl group, or an unsubstituted or substituted alkoxy group.