Abstract: An apparatus mounts a battery cell stack to a frame that includes a base cover and a pair of side covers respectively extending from both ends of the base cover. The apparatus includes a support member to support the battery cell stack, and two films, wherein one side of each of the two films is respectively attachable to one of the pair of side covers of the frame, and another side of each of the two films is respectively attachable to one of two side surfaces of the battery cell stack, wherein, when the support member and the frame move toward each other, the two films are movable into the frame, and the battery cell stack is movable along the two films to be mounted to the frame.

Abstract: A battery pack including a plurality of battery modules; a tray including an interior space where the plurality of battery modules are positioned; a plurality of beam frames traversing an upper surface of the tray to partition spaces where the plurality of battery modules are positioned; and a plurality of heatsinks having a hollow structure through which a coolant flows, wherein each heatsink is coupled to a part of a respective one of the plurality of beam frames and faces a side surface of a respective one of the plurality of battery modules, at least one drainage hole is provided at the tray and at least one drainage hole is provided at the beam frame, and the at least one drainage hole of the tray and the at least one drainage hole of the beam frame are provided below the heatsink.

Abstract: A battery module system includes a cooling device, a battery module disposed on the cooling device, the battery module being in direct or indirect contact with the cooling device, a sensor attached to the battery module to sense a temperature of the battery module or gas generated from the battery module, a battery management system to output a switching on/off signal with reference to a sensing signal transmitted from the sensor; and an external short-circuiting device connected between the positive electrode and negative electrode of the battery module to induce an external short circuit of the battery module, the external short-circuiting device including: a resistor disposed on the cooling device, the resistor being in direct or indirect contact with the cooling device; and a switch to electrically connect or isolate the battery module to/from the resistor according to the switching on/off signal.

Abstract: According to the present disclosure, there is provided a battery pack. The battery pack may include a pack case having a pack tray configured to support a lower portion of battery modules. A pack cover may be configured to cover the battery modules and contact a top surface of the battery modules. A heatsink may be installed at an upper portion of the pack cover.

Abstract: A battery module including a cell assembly having a plurality of secondary batteries stacked in at least one direction and configured so that electrode leads of the secondary batteries protrude in at least one direction of forward direction and a rearward direction thereof; an upper housing disposed at an upper portion of the cell assembly; and a sensing block located at at least one of a front side and a rear side of the cell assembly and having a bus bar made of an electrically conductive material and contacting the electrode leads of the secondary batteries at the corresponding front side or rear side of the cell assembly is provided. The sensing block being slidably coupled to the upper housing.

Abstract: Disclosed is a battery pack, which includes a plurality of battery modules and a pack case in which the battery modules are fixedly installed, the battery case includes a pack tray located at a lower portion of the battery modules, and a pack cover coupled with the pack tray to cover the battery modules, and each of the battery modules is fixedly coupled to the pack cover and includes battery cells arranged in one direction, a module case for accommodating the battery cells in an inner space thereof, and a rigid beam disposed between the battery cells inside the module case.

Abstract: A battery module includes: a unit module stack formed by stacking a plurality of unit modules, each of which has a battery cell, a bus bar attached to an electrode lead provided to the battery cell, and a bus bar frame attached to a terrace portion of the battery cell to accommodate at least a portion of the electrode lead and the bus bar, wherein each bus bar frame includes a connector holder; and a connector fixed by the connector holders of at least two unit modules of the plurality of unit modules to contact the bus bar.

Abstract: A battery module includes a cell assembly having at least two battery cells; a module housing having an inner space accommodating the cell assembly, and including a circulation hole so that the inner space is connected to an outside; a mesh member having a mesh structure and provided in the circulation hole of the module housing; and a sealing member provided at a position facing the mesh member and configured to expand a volume at more than a predetermined temperature to seal a mesh hole of the mesh member.

Abstract: A pouch type secondary battery in which an electrode lead of the pouch type secondary battery and an electrode lead of an adjacent different pouch type secondary battery are welded together to construct a battery module is provided. The electrode lead of the pouch type secondary battery includes a length extended part so that, after cutting a welded part of the electrode leads of the pouch type secondary battery and the adjacent different pouch type secondary battery to form electrode leads of remaining length, the electrode leads of remaining length are welded together again. A battery module and method of reusing the battery module are also provided.

Abstract: A method for producing a battery module is provided. The method for producing a battery module includes: stacking a plurality of battery cells; disposing a plurality of bus bars adjacent to electrode leads respectively provided at the plurality of battery cells; by a welding jig, pressing the electrode leads so that the electrode leads come into contact with the bus bars, respectively; and welding the electrode leads and the bus bars through an opening formed in the welding jig.

Abstract: A battery module includes: a plurality of battery cells stacked on one another; a cell housing configured to accommodate the plurality of battery cells; and a cover bus bar configured to cover an entire upper side of the cell housing and including electrode connection layers. The cover bus bar may be electrically connected to electrodes of the plurality of battery cells through the electrode connection layers. The electrode connection layers may be arranged in a layered structure.

Abstract: Disclosed is a battery pack, which includes a plurality of battery modules and a pack case for fixedly installing the battery modules therein, and the pack case includes a pack tray supporting a lower portion of the battery modules; and a pack cover coupled with the pack tray to cover the battery modules and having a terminal connection unit coupled to at least one side of each battery module and provided to an inner surface of a top thereof to electrically connect electrode terminals of the battery modules.

Abstract: A laser welding jig includes a jig body configured to cover the bus bar unit during welding. A plurality of welding slits are formed at the jig body so that electrode leads and at least one lead bus bar are exposed out of the jig body for the welding. A plurality of bolt insert portions are provided between plurality of welding slits. The welding jig also includes at least one bolt insert hole into which at least one pressing bolt is inserted, and a pair of lead adhering blocks provided at a rear surface of each of the bolt insert portions and configured to be spaced from each other as the pressing bolt is inserted so that the electrode leads are adhered to the lead bus bar.

Abstract: Disclosed is a battery pack with increased fabrication efficiency. To achieve the object, the battery pack according to the present disclosure includes at least one battery module including a plurality of secondary batteries placed and arranged in a horizontal direction and electrically connected to each other, and a cell frame having a fixing tube configured to fix the plurality of secondary batteries in a predetermined arrangement, the fixing tube being disposed between the plurality of secondary batteries, extending in the horizontal direction and having two open ends, and a fixing rod extending in a direction and inserted into the fixing tube in the horizontal direction.

Abstract: A battery pack according to an embodiment of the present disclosure may includes a plurality of battery modules having at least one battery cell and having heatsink units respectively provided to upper and lower sides thereof. The heatsink unit may have a cooling channel through which a coolant flows. At least one crush beam may be provided between the plurality of battery modules. A pack tray configured to support the at least one crush beam and the plurality of battery modules may be provided. A plurality of drain holes may be provided in the pack tray to discharge the coolant out of the battery pack when the coolant leaks.

Abstract: Disclosed is a battery pack including a battery module having a plurality of battery cells, and a heat dissipation member provided in contact with a bus bar at a side surface of the battery module where electrode leads of the battery cells and the bus bar coupled to the electrode leads are disposed.

Abstract: An apparatus mounts a battery cell stack to a frame that includes a base cover and a pair of side covers respectively extending from both ends of the base cover. The apparatus includes a support member to support the battery cell stack, and two films, wherein one side of each of the two films is respectively attachable to one of the pair of side covers of the frame, and another side of each of the two films is respectively attachable to one of two side surfaces of the battery cell stack, wherein, when the support member and the frame move toward each other, the two films are movable into the frame, and the battery cell stack is movable along the two films to be mounted to the frame.

Abstract: Disclosed is a battery module, which includes a plurality of battery cells disposed to face each other and arranged side by side at least in a first direction, a module cover configured to accommodate the plurality of battery cells and formed to have at least one open side, and a pair of buffering members located between one side of a battery cell located at an outermost side in the first direction among the plurality of battery cells and a side of the module cover so that at least a part thereof is in contact with the sides of the battery cells and the module cover, respectively, wherein the buffering member is a leaf spring having at least one bent portion.

Abstract: Discussed is a battery module, including at least one battery cell, a pair of pressing plates respectively disposed at opposite side surfaces of the at least one battery cell, and a module cover coupled to the pair of pressing plates to cover an upper side or a lower side of the at least one battery cell, wherein opposite ends of the module cover overlap an upper end or a lower end of the pair of pressing plates, and have a plurality of welding portions and a plurality of auxiliary welding beads alternately arranged along a longitudinal direction of the module cover, and wherein the opposite ends of the module cover are welded to the pair of pressing plates at the plurality of welding portions.

Abstract: An apparatus for mounting a battery cell mounts a battery cell stack to a frame that includes a base cover and a pair of side covers respectively extending from both ends of the base cover. The apparatus includes a support member to support the battery cell stack, a roller member around which a film fixed to the support member is wound, and a film guide member configured to move the film into the frame. When the film guide member moves the film into the frame, the support member and the frame move toward each other, and the battery cell stack is movable along the film to be mounted to the frame.