Abstract: An electrode assembly includes a first electrode, a second electrode, and a separator interposed therebetween. The first electrode, the second electrode and separator are wound in a winding direction about a winding axis to define a core and an outer circumference of the electrode assembly. The first electrode includes an active material portion coated with an active material layer and a first non-coated portion not coated with the active material layer along the winding direction. The first non-coated portion includes a plurality of impregnation slits extending along a circumferential direction of the electrode assembly. Longitudinal extension lines of impregnation slits adjacent to each other along the circumferential direction do not overlap each other.

Abstract: Discussed is an electrode assembly having a positive electrode, a negative electrode, and a separator wound around a winding axis, wherein the positive electrode or the negative electrode includes a current collector that has sheet-shape and having a long side and a short side and has an uncoated portion at an end of the long side, wherein the uncoated portion includes an electrode tab defined section used as an electrode tab by itself and at least one electrode tab undefined section not used as an electrode tab, wherein a maximum current path includes a widthwise direction current path along the short side of the current collector and a lengthwise direction current path along the long side of the current collector, and a current path ratio L2/L1 is approximately 11 or less when lengths of the lengthwise direction current path and the widthwise direction current path are L1 and L2, respectively.

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: 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 water-cooled heat dissipation module assembly capable of cooling a power module of a vehicle driving inverter system using a battery or fuel cell. The water-cooled heat dissipation module assembly includes a housing unit provided in the form of a housing having an opening portion at least partially opened at one side thereof. The housing unit and at least a part of a rim region of the cooling unit are made of a plastic material, and the housing unit and the cooling unit are joined to each other by plastic welding using a laser.

Abstract: An electrode assembly, a battery, a battery pack and a vehicle including the same are provided. In the electrode assembly, the uncoated portion of an electrode includes a segment region divided into a plurality of segments, and the segment region includes a plurality of segment groups separated by a group separation pitch along a winding direction. One end of the electrode assembly includes a plurality of segment alignments. In winding turns corresponding to the plurality of segment alignments, group separation pitches of segment groups disposed in a same winding turn are substantially identical, and separation pitches of the segment groups is greater in a winding turn of a region adjacent to the outer circumference of the electrode assembly than in a winding turn of a region adjacent to the core of the electrode assembly.

Abstract: A battery cell activation tray includes a tray main body including a plurality of accommodation grooves configured to receive a plurality of battery cells therein, the tray main body having an upper portion that is open, a lower plate located under the tray main body, the lower plate having a main flow path to allow a fluid to move therethrough, and a temperature controller fluidly connected to the main flow path to control a temperature of the fluid introduced into the main flow path. The fluid is introduced into the main flow path in the lower plate to control a temperature of the plurality of battery cells accommodated in the accommodation grooves of the tray main body.

Abstract: A tripod of an image photographing apparatus capable of rotating the image photographing apparatus, comprises a mount section to which the image photographing apparatus is attached, and a drive section for rotating the mount section. The mount section comprises a signal terminal for transmitting a signal of the image photographing apparatus to the drive section, and a power terminal for carrying power from the image photographing apparatus to the drive section. The tripod of the image photographing apparatus further comprises a record button for transmitting an image record signal to the image photographing apparatus and/or a zoom button for transmitting a lens zoom signal to the image photographing apparatus.

Abstract: A camcorder having a detachable display part for displaying an image captured by a lens part. The camcorder comprises a camera part that includes a lens part for capturing an image of an object, a record part for recording the captured image selectively, and a display part having a predetermined structure for allowing the display part to be attached to or detached from the camera part. The display part displays the captured image while the display part is attached to, or detached from, the camera part. The display part can further comprise a remote control function for controlling the camera part.