Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.

Abstract: Provided are an electrode assembly, a battery, and a battery pack and vehicle including the same. An electrode assembly, in which a first electrode, a second electrode, and a separator interposed therebetween are wound about an axis to define a core and an outer circumferential surface. At least one of the first electrode and the second electrode includes, at a long side end portion, an uncoated portion exposed beyond the separator in a direction of the axis. At least a part of the uncoated portion is bent in a radial direction of the electrode assembly to define a bent surface region having overlapping layers of the uncoated portion. The bent surface region includes a welding target region having a number of the overlapping layers of the uncoated portion, and the welding target region extends along a radial direction of the electrode assembly.

Abstract: A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode wound around a winding axis to define a core and an outer circumferential surface, the first electrode including a first uncoated region in which an active material layer is not coated along a winding direction; a housing accommodating the electrode assembly through an open portion at a lower end thereof; a first current collector coupled to the first uncoated region and disposed in the housing; a cap to cover the open portion; and a spacer between the first current collector and the cap and having a height corresponding to a distance between the first current collector and the cap.

Abstract: An electronic device including a memory device with improved reliability is provided. The semiconductor device comprises a data pin configured to transmit a data signal, a command/address pin configured to transmit a command and an address, a command/address receiver connected to the command/address pin, and a computing unit connected to the command/address receiver, wherein the command/address receiver receives a first command and a first address from the outside through the command/address pin and generates a first instruction on the basis of the first command and the first address, and the computing unit receives the first instruction and performs computation based on the first instruction.

Abstract: A method for producing nano-sized lithium-cobalt oxide is provided by using flame-spray pyrolysis. The method comprises the steps of: spraying minute droplets, which is a solution dissolved lithium salt with cobalt salt at room temperature; atomizing the minute droplets through rapid expansion into a high temperature environment generated by combusting oxygen and hydrogen; decomposing and oxidizing the atomized minute droplets thermally at high temperature to produce nano-sized oxides in gaseous phase: and collecting the produced nano-sized composite oxides particles. The produced nano-sized lithium-cobalt oxide can be applied to a highly efficient lithium battery as the electrode materials and a thin film type of battery as well as to a miniaturized battery.

Abstract: An apparatus and method is provided for recovering lithium cobalt oxide from spent lithium batteries. The method of recovering lithium cobalt oxide comprises the steps of: separating the cathodes from spent lithium batteries by dismantling; producing lithium cobalt oxide by reacting the cathodes with a strong alkali solution under a certain hydrothermal condition; cooling the lithium cobalt oxide to crystallize; and cleansing the synthesized lithium cobalt oxide to remove foreign objects. The apparatus for recovering lithium cobalt oxide comprises a reactor main body 300 having a sealing cap 320 on the upper section and an agitator 130; an outer reaction container 200 installed inside the reactor main body 300; and an inner reaction container 100 installed inside the outer reaction container 200. The inner reaction container 100 comprises a plurality of holes on the upper section and a separating cap 240.

Abstract: An apparatus and method is provided for recovering lithium cobalt oxide from spent lithium batteries. The method of recovering lithium cobalt oxide comprises the steps of: separating the anodes by dismantling the spent lithium batteries; obtaining lithium cobalt oxide by reacting the anodes with a strong alkali solution under a certain hydrothermal condition; cooling the lithium cobalt oxide to crystallize; and cleansing the synthesized lithium cobalt oxide to remove foreign objects. The apparatus for recovering lithium cobalt oxide comprises a reactor main body 300 having a sealing cap 320 on the upper section and an agitator 130; an outer reacting container 200 installed inside the reactor main body 300; and an inner reacting container 100 installed inside the outer reacting container 200. The inner reacting container 100 comprises a plurality of holes on the upper section and a separating cap 240.

Abstract: An apparatus and method for producing the nano-sized lithium-cobalt oxide using flame-spraying pyrolysis is provided. The method of producing a nano-sized lithium-cobalt oxide comprising the steps of: spraying minute droplets formed at normal temperature from a solution dissolved with a certain ratio of lithium salt and cobalt salt; atomizing the minute droplets through rapid expansion by spraying into a high temperature environment generated by the combustion of oxygen and hydrogen; decomposing the atomized minute droplets thermally at high temperature. An apparatus for producing a nano-sized lithium-cobalt oxide by utilizing a flame spraying pyrolysis comprises a minute droplet generating section (100), a combusting section (200) and a particle collecting section (300). The produced nano-sized lithium-cobalt oxide can be applied to a highly efficient lithium battery.