Abstract: A rechargeable lithium battery includes an electrolyte solution including a non- aqueous organic solvent and a lithium salt; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, where the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate, based on the total weight of the non-aqueous organic solvent, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Provided is a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate based on the total weight of the non-aqueous organic solvent, the additive includes one or more lithium compound selected from lithium tetrafluoro borate (LiBF4), lithium difluoro(oxalato)borate (LiDFOB), lithium difluorophosphate (LiPO2F2), and lithium bisoxalato borate (LiB(C2O4)2: LiBOB), and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Disclosed are a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent includes ethylene carbonate in an amount of less than about 5 wt %, and the additive includes a compound represented by Chemical Formula 1, and the positive electrode active material is represented by Chemical Formula 2. Chemical Formula 1 and Chemical Formula 2 are the same as defined in the specification.

Abstract: A rechargeable lithium battery includes an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, where the non-aqueous organic solvent includes less than about 5 wt % of ethylene carbonate, based on the total weight of the non-aqueous organic solvent, the additive includes vinylene carbonate (VC), vinylethylene carbonate (VEC), or a mixture thereof, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Provided is a rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a first lithium salt, and an imide-based lithium salt; a positive electrode including a positive electrode active material; and a negative electrode including a negative electrode active material, wherein the non-aqueous organic solvent contains less than about 5 wt % of ethylene carbonate based on the total weight of the non-aqueous organic solvent, and the positive electrode active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Provided are a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery including the same, and the non-aqueous electrolyte for the lithium secondary battery including a non-aqueous organic solvent, a lithium salt, and an additive represented by Chemical Formula 1.

Abstract: An additive for an electrolyte, an electrolyte including the additive for a rechargeable lithium battery, and a rechargeable lithium battery including the electrolyte are provided. The additive may be represented by Chemical Formula 1, where at least one selected from A and B is a group represented by Chemical Formula A.

Abstract: Provided are an electrolyte for a lithium secondary battery including a lithium salt, an organic solvent; and an additive, wherein the additive includes a first compound represented by Formula 1 and a second compound represented by Formula 2 below, and a mixing weight ratio of the first compound to the second compound is in a range of 1:9 to 9:1, and a lithium secondary battery including the same. In Formula 1, X1, R1 to R6, and n in Formula 1 and A1 and A2 in Formula 2 are as defined in the detailed description.

Abstract: A rechargeable lithium battery including an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode including a positive active material; and a negative electrode including a negative active material is provided. The additive includes a compound represented by Chemical Formula 1, and the positive active material includes a cobalt-free lithium nickel manganese-based oxide.

Abstract: Provided are an electrolyte for a lithium secondary battery, and a lithium secondary battery comprising same, the electrolyte including a nonaqueous organic solvent, a lithium salt, and an additive, wherein the additive is a composition including a first compound represented by Chemical Formula 1 and a second compound represented by Chemical Formula 2. The details of Chemical Formulas 1 and 2 are the same as those described in the specification.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive represented by Chemical Formula 1, wherein a volume of the rechargeable lithium battery is about 5 cm3 to about 200 cm3. Details of Chemical Formula 1 are as described in the specification.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material layer; a negative electrode including a negative active material layer; and an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the positive active material layer includes a positive active material and carbon nanotubes, the carbon nanotubes are greater than about 0.1 wt % and less than about 3.0 wt % in amount based on a total weight of the positive active material layer, and the additive includes a compound represented by Chemical Formula 1. Details of Chemical Formula 1 are as described in the specification.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the negative active material includes a Si composite and the additive includes a compound represented by Chemical Formula 1. Details of Chemical Formula 1 are as described in the specification.

Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive includes a compound represented by Chemical Formula 1, and the positive active material includes at least one lithium composite oxide represented by Chemical Formula 3.

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 compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2: wherein X is a fluoro group, a chloro group, a bromo group, or an iodo group, and A is a C1 to C10 alkylene group or (—C2H4—O—C2H4—)m, wherein m is an integer of 1 to 10.