Abstract: Disclosed herein is a battery module. The battery module case can include a stepped structure to increase the bonding forces between components of the case to improve yield of a battery module. The battery module can include a main body with a bottom plate connected to first and second side surfaces at opposite lateral portions. The case can include a first end plate and a second end plate to connect to the main body and cover the front and rear surfaces. A cover plate can enclose the upper surface of the main body. The stepped structure can be along an edge of the bottom plate to connect with the first and second end plate.

Abstract: A pouch-type battery case according to an embodiment of the present invention can include a cup part configured to accommodate an electrode assembly of stacked electrodes and separators. The cup part comprises a plurality of outer walls forming a periphery of the cup part, and a plurality of die edges connecting the plurality of outer walls to a side or degassing part. At least one of the die edges can be rounded to define a curvature radius of 1 mm or less. The cup part can have a depth of 6.5 mm or less.

Abstract: A device for folding a pouch having first and second cup parts, first and second circumferential parts formed flat along circumferences thereof, respectively, includes: lower and upper nests on which the first and second cup parts are seated; first and second guides fixed to the lower and upper nests and having first and second protrusions protruding upwardly therefrom, the first and second protrusions in close contact with each other forming a support protrusion; and a pressing part allowing a connection part of the first and second circumferential parts to be in close contact with the support protrusion when the first and the second cup parts are seated on the lower and the upper nests, respectively, wherein when the pressing part causes the connection part and the support protrusion to be in contact, the upper nest rotates so that the second cup part is folded onto the first cup part.

Abstract: The present technology includes a semiconductor memory device. The semiconductor memory device includes a first channel pattern and a second channel pattern each extending in a vertical direction and facing each other, a channel separation pattern formed between the first channel pattern and the second channel pattern and extending in the vertical direction, a stack including conductive patterns each surrounding the first channel pattern, the second channel pattern, and the channel separation pattern and stacked apart from each other in the vertical direction, a first memory pattern disposed between each of the conductive patterns and the first channel pattern, and a second memory pattern disposed between each of the conductive patterns and the second channel pattern.

Abstract: The present technology includes a semiconductor memory device. The semiconductor memory device includes a first channel pattern and a second channel pattern each extending in a vertical direction and facing each other, a channel separation pattern formed between the first channel pattern and the second channel pattern and extending in the vertical direction, a stack including conductive patterns each surrounding the first channel pattern, the second channel pattern, and the channel separation pattern and stacked apart from each other in the vertical direction, a first memory pattern disposed between each of the conductive patterns and the first channel pattern, and a second memory pattern disposed between each of the conductive patterns and the second channel pattern.

Abstract: A pouch-type battery case according to an embodiment of the invention may accommodate an electrode assembly, in which electrodes and separators are alternately stacked. The pouch-type battery case may include: a pair of recess parts, each of which has a recessed shape; a pair of terraces that are disposed around the pair of recess parts and are inclined downward in a direction closer to each other in a state; in which the battery case is unfolded; and a bridge disposed between the pair of recess parts, configured to connect the pair of recess parts to each other, having a pair of connection surfaces formed to be inclined upward from a bottom surface of each of the pair of recess parts in a direction closer to each other. In the state in which the battery case is unfolded, an angle formed by the pair of terraces may be an obtuse angle.

Abstract: Electronic device includes first wireless communication interface; second wireless communication interface; and controller.

Abstract: A pouch-type battery case includes a cup portion, which accommodates therein an electrode assembly formed by stacking an electrode and a separator, and a plurality of die edges connecting an outer wall of the cup portion to a side extending from the outer wall. The die edges include a first region, which is rounded at a first radius (r1) of curvature and at which an electrode tab extending from the electrode is positioned, and a second region which is other than the first region and rounded at one or more second radii (r2, r3, r4) of curvature less than or equal to the first radius (r1) of curvature. The second region is divided into an inner region and an outer region with respect to the first region, and the radius (r2) of curvature in the inner region differs from the radii (r3, r4) of curvature in the outer region.

Abstract: A pouch-type secondary battery according to an embodiment of the present invention for achieving the above object includes: an electrode assembly in which electrodes and separators are stacked; a pouch-type battery case comprising a first case and a second case, wherein at least one the first case and the second case comprises a cup part configured to accommodate the electrode assembly; a folding part coupling the first case to the second case; and a protrusion protruding from a portion of each of opposing ends of the folding part, wherein the protrusion has a length of 1.5 mm or less.

Abstract: An apparatus for sealing a battery case includes: a sealing tool configured to seal a side of a pouch-type secondary battery, wherein the sealing tool includes: a body; and a sealing part formed at one side of the body and configured to directly press the side so as to seal the side, wherein the sealing part includes: a weak sealing part configured to seal an inner portion of the side and formed to be recessed inward; and a pattern part configured to seal an outer portion of the side and formed by regularly repeating a rib formed to protrude outward and a groove formed to be recessed inward.

Abstract: A pouch-type battery case according to an embodiment of the present invention can—include a cup part configured to accommodate an electrode assembly of stacked electrodes and separators. The cup part comprises a plurality of outer walls forming a periphery of the cup part, and a plurality of die edges connecting the plurality of outer walls to a side or degassing part. At least one of the die edges can be rounded to define a curvature radius of 1 mm or less. The cup part can have a depth of 6.5 mm or less.

Abstract: A pouch-type battery case according to an embodiment of the present invention for achieving the above objects includes: a first case and a second case, in which cup parts each of which is configured to accommodate an electrode assembly, in which electrodes and separators are stacked, therein is formed, respectively; and a bridge formed between the two cup parts, wherein the bridge has a thickness of 2 mm or less.

Abstract: An electrode assembly includes an electrode stack formed by alternately stacking an electrode and a separator, and an outer tape attached to an outer surface of the electrode stack. The outer tape is attached to the electrode stack to surround a side surface thereof, and a through-hole is formed in a first region of the outer tape which is present at a position corresponding to the side surface of the electrode stack.

Abstract: A sealing unit includes a sealing part configured to seal an electrode stack formed by alternately stacking electrodes and separators and a body part extending from the sealing part, wherein a sealing groove that is recessed inward is formed in the sealing part, and the sealing part includes a bottom surface forming the bottom of the sealing groove, a first inclined surface that is an inclined surface extending to be inclined upward from the bottom surface, and a second inclined surface that is an inclined surface extending to be inclined downward from the bottom surface.

Abstract: A device for folding a pouch having first and second cup parts, first and second circumferential parts formed flat along circumferences thereof, respectively, includes: lower and upper nests on which the first and second cup parts are seated; first and second guides fixed to the lower and upper nests and having first and second protrusions protruding upwardly therefrom, the first and second protrusions in close contact with each other forming a support protrusion; and a pressing part allowing a connection part of the first and second circumferential parts to be in close contact with the support protrusion when the first and the second cup parts are seated on the lower and the upper nests, respectively, wherein when the pressing part causes the connection part and the support protrusion to be in contact, the upper nest rotates so that the second cup part is folded onto the first cup part.

Abstract: An apparatus for manufacturing a pouch of a secondary battery includes: a lower die, a punch, and a stripper. The punch is inserted into the accommodation groove of the lower die to mold the cup part of the pouch. The stripper presses a peripheral part of the pouch. The bridge part is configured to connect the left accommodation groove and the right accommodation groove to each other. The bridge part includes a pillar portion and a top portion formed as a curve on an upper end of the pillar portion. The height of the top portion is less than ½ of a width of the pillar portion. A pouch of a secondary battery manufactured by the apparatus is also provided.

Abstract: A pouch-type battery case according to an embodiment of the present invention includes a cup part configured to accommodate an electrode assembly, in which electrodes and separators are stacked, therein, wherein the cup part includes a plurality of punch edges configured to connect a plurality of outer walls configured to surround a periphery thereof to a bottom part, respectively, and each of the punch edge being rounded with a curvature radius of 1 mm or less.