Abstract: A display device includes a substrate and a display element layer disposed on the substrate and emitting light. The display element layer includes a first electrode electrically connected to a portion of a first light emitting element, a second electrode electrically connected to another portion of the first light emitting element, and at least one insulating structure disposed on the substrate and having a convex shape protruding from the substrate. The first light emitting element is disposed in a space of the at least one insulating structure. A method of manufacturing the display device is also disclosed.

Abstract: A battery pack includes a battery cell stack formed by a plurality of stacked battery cells, a battery module housing configured to wrap the other outer surfaces of the battery cell stack excluding a first surface and a second surface, from which electrode leads protrude, a water tank configured to supply a coolant to the battery cell or the battery module housing, and a battery pack case configured to receive a plurality of battery module housings. The battery pack case includes a pack case space portion located adjacent to the first surface and a crossbeam located adjacent to the second surface, whereby, when fire breaks out in the battery cell, it is possible to rapidly and accurately prevent spread of flames of the ignited battery cell.

Abstract: An embodiment powder-surface treatment apparatus includes a housing defining an internal space, a main chamber installed in the internal space and defining an accommodation space in which a surface treatment process is performable using ALD, an injection unit provided on a first end portion of the main chamber, a plurality of sub-chambers arranged in a stack on top of each other in a multi-step configuration along the accommodation space in the main chamber in a state where an internal space in each of the plurality of sub-chambers is filled with a powder, a discharging unit provided on a second end portion of the main chamber, a loading apparatus configured to load a new sub-chamber into the accommodation space in the main chamber, and an unloading apparatus configured to unload and discharge at least one of the plurality of sub-chambers from the accommodation space to the outside.

Abstract: A battery pack includes a plurality of battery cell stacks, each battery cell stack including a plurality of battery cells; a battery pack case configured to receive the plurality of battery cell stacks, wherein the battery pack case includes a pack case space portion located adjacent to a first side of a first battery cell stack; and a beam located adjacent to a second side of the first battery cell stack; the battery pack case being hollow and configured to store a coolant; and an outlet in the battery pack case.

Abstract: A battery module according to an embodiment of the present disclosure includes a battery cell stack in which a plurality of battery cells including an electrode lead are stacked; and a lead frame located on one side of the battery cell stack. A first electrode lead protruding from a first battery cell among the plurality of battery cells and a second electrode lead protruding from a second battery cell among the plurality of battery cells are bent after passing through a slit formed in the lead frame and then overlapped to form an electrode lead assembly. In the electrode lead assembly, at least a part of the first electrode lead and at least a part of the second electrode lead are joined to each other. The lead frame includes a first support part on which the electrode lead assembly is located.

Abstract: A pouch case manufacturing device pack according to an embodiment of the present disclosure includes a fixing unit that fixes a pouch film of a laminated sheet for battery cells; and a punch unit that presses the pouch film so as to form a storage part on the pouch film. The punch unit includes a central punch unit and an outer peripheral punch unit surrounding the central punch unit, the central punch unit presses the central portion of the pouch film, and the outer peripheral punch unit presses the outer peripheral portion of the pouch film. In in a vertical cross section parallel to the pressing direction of the punch unit, a radius of curvature of a corner of the central punch unit is larger than a radius of curvature of a corner of the outer peripheral punch unit.

Abstract: Disclosed are a separator for a fuel cell having excellent corrosion resistance and conductivity and a method of manufacturing the same. The separator includes a metal base material and a carbon coating layer formed on the surface of the metal base material, and the carbon coating layer includes carbon domains having a size in the range of about 15 to 30 nm.

Abstract: A display device including a substrate including first and second flat regions spaced apart from each other, and a bendable region between the first and second flat regions, a display layer on a first surface of the substrate in the first flat region, a first passivation layer on the first surface of the substrate in the bendable region, a second passivation layer on a second surface of the substrate, the second passivation layer defining cavities spaced apart from each other in the bendable region, and support members on the second surface of the substrate in the first flat region and the second flat region, wherein a first density of the cavities corresponding to a first area in the bendable region is less than an average density of the cavities, and wherein a first bending stress of the substrate at the first area is greater than an average bending stress of the substrate in the bendable region.

Abstract: A shaping apparatus for a pouch-shaped battery case includes a punch configured to press a laminate sheet in order to shape an electrode assembly receiving portion of the pouch-shaped battery case, a die in which an accommodation portion is formed having a size corresponding to the electrode assembly receiving portion, a holder configured to fix an outer periphery of the laminate sheet, and an electromagnetic field-generating means attached to the punch and configured to generate an electromagnetic field. A pouch-shaped battery case shaping process uses the shaping apparatus to manufacture the pouch-shaped battery case.

Abstract: A battery pack includes a battery module configured to receive a plurality of battery cells, a battery pack case configured to receive two or more battery modules, and a heat sink located under the battery modules, wherein each of the battery modules includes a plurality of battery cells, a water tank located above the plurality of battery cells, and a module case configured to receive the plurality of battery cells and the water tank. When fire breaks out in the battery cell, it is possible to rapidly and accurately prevent spread of flames of the ignited battery cell.

Abstract: A display device includes a substrate including a first non-bendable portion, a second non-bendable portion, and a bendable portion that is interposed between the first and the second non-bendable portions, a metal plate disposed on a rear face of the substrate and including a first plate portion overlapping the first non-bendable portion, a second plate portion overlapping the second non-bendable portion, and a connection portion between the first plate portion and the second plate portion, the connection portion including a first bar and a second bar that are separated by a slit; the substrate includes a first area in which the first bar and the bendable portion overlap each other, a second area in which the slit and the bendable portion overlap each other, and a third area in which the second bar and the bendable portion overlap each other. The second area is between the first and second areas.

Abstract: A battery cell according to one embodiment of the present disclosure includes an electrode assembly including a positive electrode, a negative electrode, and a separator; and a pouch case in which a recessed portion for housing the electrode assembly is formed, wherein the pouch case is bent on the basis of at least one edge line among the edges formed by the recessed portion.

Abstract: A battery pack includes a battery module housing configured to receive a plurality of battery cells, a battery pack case configured to receive one or more of battery module housings, and a water tank located on one surface of each of the battery module housings, the water tank being configured to receive a coolant, wherein the battery module housing is configured to wrap outer surfaces of the plurality of battery cells. In a battery pack including a plurality of battery modules, it is possible to prevent thermal spread between adjacent battery modules when fire breaks out in a battery cell.

Abstract: A battery pack includes a battery module housing configured to receive a plurality of battery cells, a battery pack case configured to receive one or more of battery module housings, and a water tank located on one surface of each of the battery module housings, the water tank being configured to receive a coolant, wherein at least a portion of the surface of the battery module housing that faces the water tank is open, whereby, when fire breaks out in the battery cell, it is possible to rapidly and accurately prevent spread of flames of the ignited battery cell.

Abstract: Discussed is an underbody for electric vehicles having a water tank, and more particularly to an underbody for electric vehicles, the underbody including a receiving portion depressed upwards by a predetermined depth, the receiving portion being configured to receive a battery pack, wherein a first water tank is mounted in an upper part of the receiving portion.

Abstract: A battery pack includes a battery pack case configured to receive one or more battery modules and a heat sink located above the battery modules, wherein each of the battery modules includes a plurality of battery cells, a water tank located above the plurality of battery cells, and a module case configured to receive the plurality of battery cells and the water tank, whereby, when fire breaks out in the battery cell, it is possible to rapidly and accurately prevent spread of flames of the ignited battery cell.

Abstract: A battery pack includes a battery module housing configured to receive a plurality of battery cells, a battery pack case configured to receive one or more battery module housings, a water tank located above the battery module housings, and a heat sink located under the battery module housings. The battery module housing is configured to wrap the plurality of battery cells. In a battery pack including a plurality of battery modules, it is possible to prevent thermal spread between adjacent battery modules when fire breaks out in a battery cell.

Abstract: A battery pack includes a battery module housing configured to receive a plurality of battery cells, a battery pack case configured to receive one or more of battery module housings, a water tank located above the battery module housings, and a heat sink located under the battery module housings. At least a portion of the surface of the battery module housing that faces the water tank is open, whereby, when fire breaks out in the battery cell, it is possible to rapidly and accurately prevent spread of flames of the ignited battery cell.

Abstract: A pouch-shaped battery case shaping apparatus includes a die having an open recess sized to correspond to an electrode assembly, a punch configured to draw a sheet into the open recess and thereby shape the sheet, a holder configured to fix ends of the sheet to the die during drawing of the sheet, and a lubricant supply unit configured to supply a lubricant to the sheet to minimize surface damage to the sheet due to the drawing of the sheet. A pouch-shaped battery case manufacturing process uses the pouch-shaped battery case shaping apparatus to shape the sheet.

Abstract: A secondary battery includes a plurality of secondary batteries, each secondary battery having two side surfaces that are flat and parallel to each other; and a housing having a bottom part formed in a horizontal direction, two vertical sidewalls extending parallel to each other in a longitudinal direction at opposite ends of the bottom part, and a ceiling part extending from an upper end of each of the sidewalls and disposed parallel to the bottom part. The plurality of secondary batteries are mounted to be stacked in a thickness direction thereof so that side surfaces of outermost secondary batteries of the plurality of secondary batteries face respective sidewalls. A rib is formed inside each of edges connecting the bottom part and the sidewalls of the housing to each other to have a thickness thicker than other portions of the sidewalls.