Abstract: A battery module includes a cell stack defined by a stack of a plurality of battery cells; and a module housing configured to accommodate the cell stack. The module housing has a lower housing, a pair of side housings, a pair of front and rear housings, and an upper housing. The lower housing may include a base plate configured to cover a lower surface of the cell stack; a spacer interposed between the cell stack and the base plate to partially cover the lower surface of the cell stack; a supply tube connected to the spacer to supply a cooling medium through the inside of the spacer to an empty space defined between the cell stack and the base plate; and a discharge tube connected to the spacer to discharge the cooling medium from the empty space and the spacer.

Abstract: Disclosed is a battery cell, which includes: an electrode assembly; an electrode lead connected to the electrode assembly; a pouch case surrounding the electrode assembly and sealed in a state in which the electrode lead extends through the pouch case and is exposed at an outside surface of the pouch case; and a fire extinguishing unit disposed in the pouch case and configured to eject a fire extinguishing powder when a temperature of the first extinguishing unit is equal to or greater than a predetermined limit temperature.

Abstract: Disclosed is a battery pack, which includes a plurality of unit battery modules, each unit battery module having a plurality of battery cells accommodated in an inner space thereof, the plurality of unit battery modules being structurally connected successively in one direction; and a pack case configured to cover the plurality of unit battery modules, wherein each unit battery module has two side plates forming opposite side surfaces thereof, and wherein one of the side plates of any one of the unit battery modules and one of the side plates of another one of the unit battery modules adjacent thereto are engaged with each other to form a single common wall.

Abstract: Provided is a battery module in which a connection structure between electrode leads is changed to prevent a heat generation phenomenon when overcharged and to allow easy connection and disconnection between secondary batteries, and a method for manufacturing the same. The battery module according to the present disclosure includes a secondary battery stack formed by stacking a plurality of secondary batteries having electrode leads, wherein each electrode lead protrudes from the corresponding secondary battery, and each electrode lead has a bent part, and the bent parts of opposite-polarity electrode leads of neighboring secondary batteries are stacked with an elastic body interposed therebetween, and the corresponding stacked part is fastened by an insulating bolt including a washer, with the elastic body being compressed.

Abstract: A pouch exterior material that enables an electrode assembly to be easily mounted on an accommodating portion at a proper position, having an integrated shape and including an inserting portion provided at a center of the pouch exterior material and having a width equal to a thickness of the electrode assembly, accommodating portions provided symmetrically at two sides of the inserting portion and gradually deepening from a portion corresponding to a width center of the electrode assembly towards a portion corresponding to an edge of the electrode assembly, and a triangular stepped portion provided at two ends of the inserting portion and having a depth gradually decreasing towards an end.

Abstract: Disclosed is a battery pack. The battery pack includes: a plurality of battery modules each having a plurality of battery cells therein; and a guide member coupled to each of the battery modules, the guide member being configured to guide movement of the battery modules when the plurality of battery modules are assembled adjacent to one another.

Abstract: A pouch case sealing apparatus for sealing a pouch case that includes a pouch body for accommodating an electrode assembly of a battery cell and a pouch terrace extending from the pouch body is provided. The pouch case sealing apparatus includes: a pair of sealing jigs, each sealing jig having a pressing surface, the pair of sealing jigs being configured to press and thermally fuse the pouch terrace from upper and lower directions of the pouch terrace so that the pouch case is sealed; and a pair of terrace anti-protruding units formed at respective pressing surfaces of the pair of sealing jigs to prevent an end portion of the pouch terrace from protruding beyond the pouch body in a horizontal direction of the pouch body when the pouch terrace is pressed and thermally fused. A method for sealing a pouch case is also provided.

Abstract: Disclosed is an air-cooling battery pack, which includes a cell assembly having a plurality of cells stacked therein; an air duct disposed to contact the cell assembly and having an air passage formed therein to allow a cooling air to move therethrough; a coupling groove formed at the air duct to elongate in a longitudinal direction; and a battery management system (BMS) plate having a BMS for managing the cells and assembled to the air duct by a slider slidably inserted into the coupling groove.

Abstract: A battery module allows a swelling amount of battery cells accommodated in a module housing to be intuitionally checked. The battery module includes a cell pressing plate accommodated in the module housing and disposed on at least one of both longitudinal side surfaces of a cell stack that is formed by stacking the battery cells; and a swelling gauge provided to protrude from a surface of the cell pressing plate. When the battery cells swell, the swelling gauge is pushed out of the module housing through a gauge hole formed in the module housing so that a swelling amount of the battery cells may be checked.

Abstract: Disclosed is a battery module, which includes: at least one battery cell having electrode leads protruding at first and second opposite sides thereof; and at least one cell case each covering the first and second sides and an upper side of a corresponding one of the at least one battery cell and each including a pair of bus bars each having one end connected to a corresponding one of the electrode leads and another end exposed at an upper side of the cell case.

Abstract: A battery module includes a battery cell stack having a plurality of stacked battery cells and a plurality of bus bars respectively coupled to electrode leads provided at the plurality of battery cells. Each bus bar includes a frame on which the electrode lead of the battery cell is placed and a conductive member coupled to the frame and electrically coupled to the electrode lead.

Abstract: An Energy Storage System (ESS) module includes a cell stack assembly including a cell stack formed by stacking a plurality of battery cells and a plurality of mica barrier assemblies and a pair of bus bar frames coupled to both side portions of the cell stack; and a housing configured to accommodate the cell stack assembly and having a plurality of flow path holes formed at locations corresponding to a front side, a rear side and both side portions of the cell stack assembly, wherein the mica barrier assembly is provided between adjacent battery cells and at an outermost side of the cell stack to form a flow path along a stacking direction of the cell stack at a temperature lower than a reference temperature and to block the flow path at a temperature equal to or higher than the reference temperature.

Abstract: A bus bar capable of effectively securing safety of a battery module when an overcurrent is generated includes: a main body portion that includes a first metal, has a stepped structure, in which an outer surface of the main body portion in an outward direction of the battery module is recessed in an inward direction, formed in one region, and is configured to be electrically connected to at least one secondary battery; a current breaking portion that is inserted into a space formed by the stepped structure and includes a second metal having a melting point relatively lower than a melting point of the first metal; and a covering member configured to surround at least a part of an outer surface of the current breaking portion. A battery module including the bus bar is also provided.

Abstract: A cylindrical battery cell assembly which includes a plurality of cylindrical battery cells arranged so that the cylindrical battery cells having the same polarity face in the same direction, a cell holder configured to confine the cylindrical battery cells as a bundle unit, a first electrode connection member located at an upper portion of the cell holder and a second electrode connection member located at the bottom ends of the cylindrical battery cells. The second electrode connection member includes a second connection portion located at a lower portion of the cell holder and disposed to contact the second electrode terminals. A rod-shaped second terminal portion extends vertically from the second connection portion through an empty space formed inside the cell holder so that one end of the rod-shaped second terminal portion is disposed above the cell holder.

Abstract: A battery cell frame according to an embodiment of the present disclosure includes a bus bar for electrically coupling to an electrode lead of a battery cell, a support member coupled to the bus bar and configured to come into contact with the battery cell to support the battery cell, and a variable length part formed in the support member. The variable length part is configured to change in length to fit a size of the battery cell.

Abstract: A battery module includes a battery cell assembly having a plurality of battery cells stacked on each other; a pair of end plates provided at both sides of the battery cell assembly; and a cover frame coupled to the pair of end plates to cover the battery cell assembly, the cover frame being deformed along an inflating direction of the plurality of battery cells when the plurality of battery cells are inflated.

Abstract: A battery pack, including a cell assembly including a plurality of secondary batteries and having outer protrusions formed at an outer side surface thereof to extend vertically and a pack housing configured to have an inner space in which the cell assembly is accommodated, the pack housing having inner protrusions formed at an inner side surface thereof to extend vertically, wherein the cell assembly has ducts provided at both side surfaces thereof so that fluid flows into or out of a secondary battery, and the outer protrusions are formed at outer side surfaces of the ducts.

Abstract: Disclosed is a battery pack, which includes a plurality of battery modules; a tray giving a space where the plurality of battery modules are placed; a plurality of beam frames installed to traverse an upper surface of the tray to partition spaces where the plurality of battery modules are capable of being individually placed; and a plurality of heatsinks formed to have a hollow structure through which a coolant flows, the plurality of heatsinks being selectively coupled to a part of the plurality of beam frames so as to be disposed to face a side surface of the battery modules, respectively, wherein a heat conduction medium having a louver structure is interposed at a thermal interface of the heatsink and the battery module.

Abstract: Discussed is a battery pack including: a battery module assembly including a plurality of battery modules including a plurality of battery cells; a pack tray on which the battery module assembly is accommodated; and a tray bar arranged on at least one side edge of the pack tray.

Abstract: Provided are an ICB assembly suitable for a battery module of a horizontal stack structure wherein unidirectional battery cells are stacked such that cell leads face each other, a battery module including the same and a method for manufacturing the same. The ICB assembly of the present disclosure includes an ICB frame configured to accommodate cell leads of unidirectional battery cells having the cell leads formed on one side such that the cell leads face each other are placed on the top surface and the bottom surface of the ICB frame; and a bus bar adapted to electrically connect to the cell leads by being assembled to the ICB frame.