Abstract: A battery module includes: a battery cell assembly having a plurality of battery cells; a top plate configured to cover an upper side of the battery cell assembly; a bottom plate configured to cover a lower side of the battery cell assembly; a sensing assembly disposed to cover a front side and a rear side of the battery cell assembly; a pair of side plates disposed at side surfaces, respectively, of the battery cell assembly; and a pair of compression pads disposed between the pair of side plates and the battery cell assembly, respectively.

Abstract: A battery module for improving heat balance of a cell assembly provided in the battery module includes a cell assembly having at least three battery cells stacked along a stacking axis such that at least one battery cell located at an interior position within the cell assembly along the stacking axis has a greater thickness along the stacking axis than a battery cell located at an outer side of the cell assembly. A module housing includes at least one sidewall and is configured to accommodate the cell assembly in an inner space defined by the sidewall.

Abstract: A calendering roll of a calendering roll press for manufacturing a dry electrode disposed as a pair to press and elongate an electrode sheet in both directions includes: a cylindrical roll main body installed to extend in a width direction of the electrode sheet; a roll driving shaft installed to pass through a center portion of the roll main body in a longitudinal direction; and a plurality of oil paths formed outside the roll driving shaft to form a flow path through which oil flows, and formed to pass through the roll main body in the longitudinal direction. An interval between the oil path and the roll driving shaft is formed to be largest at both sides of the roll main body in the longitudinal direction, and is formed to be smallest at the center portion of the roll main body.

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 pack may include a battery pack case having an inner space, a plurality of battery cells accommodated in the inner space of the battery pack case, arranged in a horizontal direction, and each extending in a vertical direction, a foam kit assembly accommodated in the inner space of the battery pack case so that the foam kit assembly is disposed on the plurality of battery cells and isolated from the outside, and foam discharged from the foam kit assembly and filled between an inner surface of the battery pack case and the foam kit assembly. A method of manufacturing a battery pack is also provided. The foam kit assembly may fill the foam uniformly in the battery pack case.

Abstract: An apparatus for manufacturing a secondary battery includes: a recess induction part configured to allow a folding part folded in a battery case of a secondary battery to be recessed inward so as to provide a recess part when the battery case of the secondary battery is folded; a first guide, of which one side of one end is recessed to define a concave space, wherein, when the battery case of the secondary battery is folded, the one end is configured to be inserted into the battery case to push the folding part to an outside so that the recess induction part is configured to be inserted into the concave space; and a second guide configured to hold a sealing part of the battery case so as to fix the battery case.

Abstract: The present invention relates to a pouch-shaped battery cell having an easily coolable structure and a manufacturing method thereof, and more particularly to a pouch-shaped battery cell including an electrode assembly having a pair of electrode tabs connected thereto and a case configured to receive the electrode assembly, wherein a pair of electrode leads configured to be connected respectively to the pair of electrode tabs of the electrode assembly is fixed to the case, and a manufacturing method thereof.

Abstract: The present invention relates to a welding apparatus including an electrode assembly configured such that a plurality of positive electrodes and a plurality of negative electrodes are stacked in the state in which separators are interposed therebetween, guides configured to reduce tensile force of positive electrode tabs and negative electrode tabs protruding from the electrode assembly, an anvil configured to allow the electrode tabs to be disposed thereon, and a horn configured to apply ultrasonic waves to the electrode tabs disposed on the anvil, a welding method using the same, and an electrode assembly manufactured by the welding method.

Abstract: A battery module incudes a plurality of cylindrical battery cells disposed upright such that a positive electrode faces downward and a negative electrode faces upward; a cell housing configured to accommodate the plurality of battery cells; a top plate configured to entirely cover an upper side of the cell housing and electrically connected to a negative electrode of each of the plurality of battery cells; a bottom plate disposed opposite the top plate to entirely cover a lower side of the cell housing and electrically connected to a positive electrode of each of the plurality of battery cells; and a phase change material filled in the cell housing so that the plurality of battery cells are partially submerged and cooling the plurality of battery cells.

Abstract: A battery cell cooling device may include a body part having one side protruding to be assembled with a unit battery cell in a one-to-one correspondence manner, a hollow part defined in the body part and isolated from the outside, a refrigerant isolated and accommodated in the hollow part, and a thermal interface material disposed at one side of the body part to contact the unit battery cell. A battery pack including the same, and a method for cooling a battery cell applied to the same are also disclosed. Particularly, provided are a battery cell cooling device capable of effectively and individually cooling a plurality of battery cells with a simplified structure, a battery pack, and a method for cooling a battery cell.

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 module having a guide frame and a method of manufacturing the same are provided. The battery module including a plurality of cylindrical battery cells; a frame assembly configured to receive the cylindrical battery cells; and a module case configured to wrap the cylindrical battery cells and the frame assembly. The frame assembly includes a frame body having first receiving holes therein; and guide portions in the first receiving holes.

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 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 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: 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 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: The present invention relates to a battery cell including an electrode assembly including a plurality of electrode plates and at least one separator interposed between the plurality of electrode plates, a case configured to receive the electrode assembly, electrode tabs formed at the electrode plates so as to protrude and extend therefrom, and an electrode lead joined to the electrode tabs while being electrically connected to the outside, wherein each of the electrode tabs includes a first tab portion connected to a corresponding one of the electrode plates and a second tab portion extending from the first tab portion, the electrode lead being joined to the second tab portion, and the first tab portion is provided with a stress relief portion configured to reduce stress in the electrode tab.

Abstract: A secondary battery charging and discharging system includes a tray configured to accommodate a plurality of battery cells, an insulation pad disposed in the tray, the insulation pad being disposable between the tray and an outermost battery cell among the plurality of battery cells so as to be contactable with one surface of the outermost battery cell, a charging and discharging part configured to be electrically connected to first and second electrode leads of the plurality of battery cells accommodated in the tray, and a cooler configured to cool the plurality of battery cells accommodated in the tray. A method of controlling an inner temperatures of a secondary battery charging and discharging system is also provided.

Abstract: The present invention relates to a welding apparatus including an electrode tab fixing portion capable of maintaining the distance between and the shape of electrode tabs while minimizing damage to electrode tabs when welding the electrode tabs and an electrode tab welding method using the same.