Abstract: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the electrolyte are provided. The electrolyte includes a non-aqueous organic solvent and a lithium salt, and the non-aqueous organic solvent includes about 10 to 30 vol % of a halogenated N,N-dialkyl methanesulfonamide solvent, based on a total amount of the non-aqueous organic solvent.

Abstract: A rechargeable lithium battery including a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolyte is provided. An active mass density of the negative electrode is greater than or equal to about 1.7 g/cc, and the electrolyte includes a lithium salt, a non-aqueous organic solvent, a first additive represented by Chemical Formula 1, and a second additive represented by Chemical Formula 2.

Abstract: Disclosed is a rechargeable lithium battery, the rechargeable lithium battery including a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein an active mass density of the negative electrode is greater than or equal to about 1.7 g/cc, and the electrolyte includes a lithium salt; a non-aqueous organic solvent; a first additive represented by Chemical Formula 1; a second additive represented by Chemical Formula 2; and a third additive represented by Chemical Formula 3. The description of each chemical formula is provided in the specification.

Abstract: Disclosed are an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, wherein the electrolyte includes a non-aqueous organic solvent and a lithium salt, wherein the non-aqueous organic solvent includes two or more propionate-based solvents, and the propionate-based solvents include alkyl fluorinated propionate and propyl propionate.

Abstract: A lithium secondary battery includes: a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein the negative electrode has a composite density of at least 1.

Abstract: A rechargeable lithium battery may include a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein an active mass density of the negative electrode is greater than or equal to about 1.

Abstract: An electrolyte for a rechargeable lithium battery includes a lithium salt; a non-aqueous organic solvent; a first additive represented by Chemical Formula 1; and a second additive represented by Chemical Formula 2: A rechargeable lithium battery includes a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and the electrolyte.

Abstract: An electrolyte for a rechargeable lithium battery may include a lithium salt; a non-aqueous organic solvent; a first additive represented by Chemical Formula 1; and a second additive represented by Chemical Formula 2: R1—O—R2??Chemical Formula 1 R3—O—R4.??Chemical Formula 2 The description of each chemical formulas follows the specification.

Abstract: Disclosed are an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, the electrolyte for a rechargeable lithium battery including a lithium salt; a non-aqueous organic solvent; a first additive represented by Chemical Formula 1; and a second additive represented by Chemical Formula 2. The description of each of the chemical formulas is provided in the specification.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein an active mass density of the negative electrode is greater than or equal to about 1.7 g/cc, and the electrolyte includes a lithium salt; a non-aqueous organic solvent; an additive represented by Chemical Formula 1: The description of the chemical formula follows the specification.

Abstract: Disclosed is a rechargeable lithium battery, the rechargeable lithium battery including a positive electrode including a positive electrode active material; a negative electrode including a negative electrode active material; and an electrolyte, wherein an active mass density of the negative electrode is greater than or equal to about 1.

Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a composition including a first compound and a second compound, the first compound is an imide cesium salt compound represented by Chemical Formula 1, and the second compound is a crown ether compound represented by Chemical Formula 2. Details of Chemical Formulae 1 and 2 are as described in the specification.

Abstract: A rechargeable lithium battery includes a positive electrode; a negative electrode; and an electrolyte, where the positive electrode includes a carbon nanotube as a conductive material, and the electrolyte includes an imide cesium salt compound represented by Chemical Formula 1 as an additive:

Abstract: Disclosed are an electrolyte solution for a rechargeable lithium battery and rechargeable lithium battery including the same, the an electrolyte solution for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound represented by Chemical Formula 1 and a second compound that is CsPF6 or a compound represented by Chemical Formula 2, and a weight ratio of the first compound to the second compound is about 1:0.3 to about 1:1.3.

Abstract: Disclosed is a rechargeable lithium battery including a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, a separator between the positive electrode and the negative electrode, and an electrolyte, wherein a density of the negative electrode is greater than or equal to about 1.6 g/cc, the electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive, the non-aqueous organic solvent includes ethyl butyrate, and the additive includes a borate compound represented by Chemical Formula 1 and an Ag salt.

Abstract: An electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound selected from among a perfluorinated imide salt, CsPF6, and a combination thereof, and an Ag salt.

Abstract: An electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a first compound represented by Chemical Formula 1, CsPF6, or a combination thereof and a second compound that is represented by Chemical Formula 2-1, Chemical Formula 2-2, or a combination thereof. The chemical formulas and their definitions are as described in the specification.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive electrode active material including lithium cobalt-based oxide, a negative electrode including a carbon-based negative electrode active material and a silicon-based negative electrode active material, a separator between the positive electrode and the negative electrode, and an electrolyte solution. The silicon-based negative electrode active material is included in an amount of about 0.1 wt % to about 10 wt % based on the total amount of the carbon-based negative electrode active material and the silicon-based negative electrode active material. The electrolyte solution includes a non-aqueous organic solvent, a lithium salt, and an additive, and the additive includes a first compound that is a compound represented by Chemical Formula 1, CsPF6, or a combination thereof, where R1 and R2 are each independently a fluoro group or a C1 to C4 fluoroalkyl group substituted with at least one fluoro group.

Abstract: An electrolyte solution for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive, where the additive includes a first compound that is CsPF5 or a compound represented by Chemical Formula 1, a second compound represented by Chemical Formula 2, and a silver salt. In addition, a rechargeable lithium battery including the electrolyte solution is also provided.

Abstract: Provided are an electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a composition including a first compound and a second compound, the first compound is an imide cesium salt compound represented by Chemical Formula 1, and the second compound is a crown ether compound represented by Chemical Formula 2. Details of Chemical Formulas 1 and 2 are as described in the specification.