Abstract: A composition for an organic optoelectronic device, an organic optoelectronic device, and a display device, the composition including a first compound represented by Chemical Formula 1 and a second compound represented by a combination of Chemical Formula 2 and Chemical Formula 3:

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, the first electrode, the second electrode and the separator being wound around a winding axis to define a core and an outer peripheral surface. The first electrode and the second electrode include a first uncoated region and a second uncoated region along a winding direction, respectively, and an active material layer coating is absent in the first uncoated region and the second uncoated region. The battery further includes a housing receiving the electrode assembly through an opening formed at a bottom, a first current collector coupled to the first uncoated region and disposed within the housing, a cap covering the opening, a spacer interposed between the cap and the electrode assembly to fix the electrode assembly and seal the housing, and a terminal electrically connected to the second uncoated region.

Abstract: A battery includes an electrode assembly defining a core and an outer circumference by winding a first electrode, a second electrode, and a separator interposed therebetween around a winding center, each of the first electrode and the second electrode includes a first uncoated portion and a second uncoated portion on which an active material layer is not coated along the winding direction; a battery housing accommodating the electrode assembly through an opening formed on one side thereof; a cap including a venting portion, covering the opening, and electrically connected to the battery housing and the first uncoated portion; and a battery terminal penetrating one surface of the battery housing and electrically connected to the second uncoated portion.

Abstract: A method of manufacturing a battery according to the present disclosure includes (a) preparing a battery housing having an opening at one side and a bottom having a through-hole at the other side; (b) fixing an electrode terminal to the through-hole; (c) preparing an electrode assembly including a first electrode tab formed of a first uncoated portion and a second electrode tab formed of a second uncoated portion at upper and lower parts, respectively; (d) inserting the electrode assembly into the battery housing through the opening at one side of the battery housing such that the first electrode tab faces the bottom; (e) electrically connecting the first electrode tab to the electrode terminal; and (f) covering the open end with a cap plate.

Abstract: A cylindrical secondary battery includes an electrode assembly including a first electrode tab and a second electrode tab, a battery can configured to accommodate the electrode assembly therein, the battery can having an opening, the battery can being electrically connected to the electrode assembly, a through terminal extending through one surface of the battery can, the through terminal being electrically connected to the electrode assembly, a first current collecting plate having a first surface coupled to the first electrode tab and a second surface coupled to the through terminal, an insulator interposed between the first current collecting plate and the battery can, and a cap plate covering the opening of the battery can. An insulating coating layer is provided along an inner circumferential surface of a sidewall of the battery can facing a side portion of the first electrode tab and a side portion of the first current collecting plate.

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: A battery includes an electrode assembly including a first electrode, a second electrode and a separator between the first electrode and the second electrode, the first electrode, the second electrode and the separator being wound around a winding axis to define a core and an outer peripheral surface. The first electrode and the second electrode include a first uncoated region and a second uncoated region along a winding direction, respectively, and an active material layer coating is absent in the first uncoated region and the second uncoated region. The battery further includes a housing receiving the electrode assembly through an opening formed at a bottom, a first current collector coupled to the first uncoated region and disposed within the housing, a cap covering the opening, a spacer interposed between the cap and the electrode assembly to fix the electrode assembly and seal the housing, and a terminal electrically connected to the second uncoated region.

Abstract: A battery includes an electrode assembly defining a core and an outer circumference by winding a first electrode, a second electrode, and a separator interposed therebetween around a winding center, each of the first electrode and the second electrode includes a first uncoated portion and a second uncoated portion on which an active material layer is not coated along the winding direction; a battery housing accommodating the electrode assembly through an opening formed on one side thereof; a cap including a venting portion, covering the opening, and electrically connected to the battery housing and the first uncoated portion; and a battery terminal penetrating one surface of the battery housing and electrically connected to the second uncoated portion.

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 an axis to define a core and an outer circumference. The first electrode includes an uncoated portion at a long side end thereof and exposed out of the separator along a winding axis direction of the electrode assembly. A part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface region that includes overlapping layers of the uncoated portion, and in a partial region of the bending surface region, the number of stacked layers of the uncoated portion is 10 or more in the winding axis direction of the electrode assembly.

Abstract: A battery includes an electrode assembly including a first uncoated region and a second uncoated region; a battery housing accommodating the electrode assembly and electrically connected to the second uncoated region; a cap to cover an open portion on bottom of the battery housing; a first electrode terminal passing through a partially closed portion of the battery housing and being electrically isolated from the battery housing; and a first current collector coupled to the first uncoated region and connected to the first electrode terminal.

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: A cylindrical battery cell includes a jelly-roll having a first electrode tab protruding upward and a second electrode tab protruding downward, a battery can configured to accommodate the jelly-roll through a top opening and electrically connected to the second electrode tab, a first current collecting plate coupled to the first electrode tab at an upper portion of the jelly-roll, an insulating shrink tube having a first cover portion for covering at least a part of the first current collecting plate and a second cover portion for covering a top end of an outer circumference of the jelly-roll, and a top cap electrically connected to the first current collecting plate and configured to cover the opening.

Abstract: Discussed is a battery that may include an electrode assembly including a first electrode, a second electrode and a separator wound around a winding axis, wherein the first electrode includes a first active material region coated with a first active material layer and a first uncoated region not coated with the first active material layer, and at least a part of the first uncoated region being an electrode tab; a first current collector coupled to at least a part of the first uncoated region on the electrode assembly; a battery housing to accommodate the electrode assembly and the first current collector; and an insulator interposed between at least one of the first uncoated region and the first current collector and an inner surface of the battery housing facing the at least one of the first uncoated region and the first current collector to block an electrical connection between the battery housing and the at least one of the first uncoated region and the first current collector.

Abstract: A battery cell includes an electrode assembly having a first electrode current collector having a sheet shape, a second electrode current collector having a sheet shape, and a separator located between the first electrode current collector and the second electrode current collector, the first electrode current collector, the second electrode current collector, and the separator being wound in a winding direction; a battery can accommodating the electrode assembly, the battery can having an open portion and a partially closed portion, the partially closed portion being electrically connected to the second electrode current collector; a current collection plate electrically connected to the first electrode current collector; a cell terminal connected to the current collection plate through a perforated hole of the partially closed portion of the battery can; and an insulator located between the battery can and the current collection plate. A method of manufacturing the battery cell is also provided.

Abstract: A battery includes an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and second electrode, a first portion including an active material extending between a pair of first sides, and a second portion extending between the pair of first sides and exposed beyond the separator, at least a part of the second portion includes an electrode tab; a battery housing having a first end with a first opening, a second end opposite the first end, and an inner surface, the battery housing accommodating the electrode assembly; a first current collector including a tab coupling portion coupled to the second portion of the first electrode and a housing coupling portion extending from the tab coupling portion and electrically coupled to the inner surface of the battery housing; and a cap covering the first opening of the battery housing.

Abstract: A battery includes an electrode assembly including a first electrode, second electrode, and a separator between the first electrode and the second electrode, the first electrode including a first region coated with an active material and a second region at a first side and adjacent to the first region, the second region being exposed beyond the separator, and at least part of the second region is an electrode tab; a housing including a first end with a first opening, the housing accommodating the electrode assembly; a first current collector including an edge portion on the electrode assembly, a second region coupling portion extending from the edge portion and coupled with the second region, and a terminal coupling portion spaced apart from the second region coupling portion; and a terminal coupled with the terminal coupling portion.

Abstract: A battery can include an electrode assembly including a first electrode, a second electrode, and a separator between the first electrode and the second electrode. The first electrode can have a pair of first sides and a pair of second sides extending between the pair of first sides, a first portion including an active material extending between the pair of first sides, and a second portion extending between the pair of first sides and exposed beyond the separator along a winding direction. The battery can further include a battery housing having a first opening at a first end and a second end with a second opening opposite the first end, a first current collector including a support portion positioned on the electrode assembly, and a housing cover which seals the first opening.

Abstract: A battery can include an electrode assembly, a battery housing, a terminal and a cap. The electrode assembly can have a first electrode, a second electrode and a separator between the first electrode and the second electrode. Each of the first electrode and the second electrode can have a first portion including an active material corresponding to the separator, and a second portion exposed beyond the separator and not coated with the active material. The battery housing can have a first end with a first opening and a second end with a second opening opposite the first end. The terminal can be electrically connected to the second portion of the first electrode and exposed out of the battery housing through the first opening of the battery housing at the first end.

Abstract: A battery can include an electrode assembly having a first electrode, a second electrode and a separator. The first electrode can include a first active material region coated with an active material layer along a winding direction and a first uncoated region not coated with the active material layer, and at least part of the first uncoated region used as an electrode tab. The battery can further include a first current collector coupled to at least part of the first uncoated region on the electrode assembly, a battery housing to accommodate the electrode assembly and the first current collector, and an insulator between an inner surface of the battery housing facing the first uncoated region or the first current collector and the first uncoated region or the first current collector to block the electrical connection between the first uncoated region and the battery housing.

Abstract: An electrode assembly, a battery, and a battery pack and a vehicle including the same are provided. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes a first portion coated with an active material and a second portion at a first side and adjacent the first portion, the second portion being exposed beyond the separator along a first axial direction of the electrode assembly. A part of the second portion is bent in a radial direction of the electrode assembly forming a first surface region including stacked layers of the second portion, and in a partial region of the first surface region, a number of the stacked layers of the second portion is 10 or more in the in the first axial direction.