Abstract: A positive active material for a rechargeable lithium battery is a secondary particle formed of an assembly of primary particles of a nickel-based compound. The positive active material has an average particle diameter ranging from 5.5 ?m to 7.5 ?m and a specific surface area ranging from 0.40 m2/g to 2.0 m2/g. When the positive active material has an average particle diameter ranging from 11 ?m to 13 ?m, the positive active material has a specific surface area ranging from 0.15 m2/g to 1.0 m2/g. A rechargeable lithium battery includes the positive active material.

Abstract: An electrolyte for a lithium rechargeable battery, a lithium rechargeable battery including the same, and a method of manufacturing lithium rechargeable battery, the electrolyte including a first additive, a second additive, a lithium salt; and a non-aqueous organic solvent.

Abstract: Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector including a carbon layer disposed on a substrate; and a positive active material layer disposed on the current collector, wherein the carbon layer has a loading level of 0.5 g/m2 to 3 g/m2. The effects of the carbon layer include improving the high power characteristics and the power density by decreasing the internal resistance of an electrode, and to improve the power density by providing uniform current to the positive electrode. The carbon layer may have a thickness of about 1 ?m to about 2 ?m. The carbon layer may include a carbon-based material of artificial graphite, natural graphite, carbon black, acetylene black, ketjen black, denka black, or combinations thereof.

Abstract: The rechargeable battery includes an electrode assembly; a case, the case retaining the electrode assembly; a cap plate coupled to an opening of the case; and an electrode terminal coupled to the cap plate and electrically connected to the electrode assembly, wherein the electrode terminal includes a terminal fixing portion coupled to an upper surface of the cap plate, the terminal fixing portion including a guide portion, a terminal portion coupled to the terminal fixing portion, and the guide portion is configured to facilitate slidable movement of the terminal portion in a single direction.

Abstract: A secondary battery including an electrode assembly, a can accommodating the electrode assembly, a cap assembly sealing the can, and an insulating case interposed between the electrode assembly and the cap assembly and having two facing long side walls and two facing short side walls, wherein the two facing long side walls include opposing end portions and opposing central portions, the opposing end portions and the opposing central portions each include outer surfaces and a distance between the outer surfaces of the opposing end portions of the long side walls is greater than a distance between the outer surfaces of the opposing central portions of the long side walls.

Abstract: The rechargeable battery includes an electrode assembly; a case, the case retaining the electrode assembly; a cap plate coupled to an opening of the case; and an electrode terminal coupled to the cap plate and electrically connected to the electrode assembly, wherein the electrode terminal includes a terminal fixing portion coupled to an upper surface of the cap plate, the terminal fixing portion including a guide portion, a terminal portion coupled to the terminal fixing portion, and the guide portion is configured to facilitate slidable movement of the terminal portion in a single direction.

Abstract: Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector including a carbon layer disposed on a substrate; and a positive active material layer disposed on the current collector, wherein the carbon layer has a loading level of 0.5 g/m2 to 3 g/m2. The effects of the carbon layer include improving the high power characteristics and the power density by decreasing the internal resistance of an electrode, and to improve the power density by providing uniform current to the positive electrode. The carbon layer may have a thickness of about 1 ?m to about 2 ?m. When the carbon layer has a thickness within this range, it may achieve the desired effects of a carbon layer. The carbon layer may include a carbon-based material of artificial graphite, natural graphite, carbon black, acetylene black, ketjen black, denka black, or combinations thereof.

Abstract: A positive active material for a rechargeable lithium battery is a secondary particle formed of an assembly of primary particles of a nickel-based compound. The positive active material has an average particle diameter ranging from 5.5 ?m to 7.5 ?m and a specific surface area ranging from 0.40 m2/g to 2.0 m2/g. When the positive active material has an average particle diameter ranging from 11 ?m to 13 ?m, the positive active material has a specific surface area ranging from 0.15 m2/g to 1.0 m2/g. A rechargeable lithium battery includes the positive active material.

Abstract: An electrolyte for a lithium rechargeable battery, a lithium rechargeable battery including the same, and a method of manufacturing lithium rechargeable battery, the electrolyte including a first additive, a second additive, a lithium salt; and a non-aqueous organic solvent.

Abstract: A secondary battery including an electrode assembly, a can accommodating the electrode assembly, a cap assembly sealing the can, and an insulating case interposed between the electrode assembly and the cap assembly and having two facing long side walls and two facing short side walls, wherein the two facing long side walls include opposing end portions and opposing central portions, the opposing end portions and the opposing central portions each include outer surfaces and a distance between the outer surfaces of the opposing end portions of the long side walls is greater than a distance between the outer surfaces of the opposing central portions of the long side walls.