Abstract: A battery pack includes a battery module assembly having at least one battery cell, a pack case configured to accommodate the battery module assembly, and a barrier unit provided on at least one side of the pack case, configured to discharge a vent gas in the pack case to the outside of the pack case and having at least one blocking baffle disposed obliquely to have a predetermined inclination angle.

Abstract: A battery pack includes a plurality of battery modules each including one or more battery cells to store and release energy, each battery module further including an intake portion and an exhaust portion, an intake duct including an intake channel and communicating with the intake portion of each of the plurality of battery modules, and an exhaust duct including an exhaust channel and communicating with the exhaust portion of each of the plurality of battery modules. Each of the plurality of battery modules further includes an opening/closing member configured to close the intake portion when internal pressure increases.

Abstract: A battery pack is configured to improve safety by effectively suppressing heat transfer between battery modules in the present disclosure. A battery pack includes a plurality of battery modules each having one or more battery cells, configured to store and release energy, and stacked in at least one direction; a pack case provided on at least one side of the plurality of battery modules, covering at least a portion of the outside of the plurality of battery modules, and having one or more openings formed therein; and a melting member provided in the opening of the pack case to seal the opening and configured to open the opening by being melted by heat generated from one or more battery modules among the plurality of battery modules.

Abstract: A battery rack includes a plurality of battery modules, each including at least one battery cell, wherein each battery module has at least one venting hole; a rack case accommodating the plurality of battery modules; and a plurality of support brackets disposed in the rack case such that each support bracket supports each battery module and is in communication with the at least one venting hole.

Abstract: A battery module ac includes a cell stack in which a plurality of battery cells are vertically stacked; a module housing including a base plate supporting the cell stack, and a pair of side plates covering both side portions of the cell stack and each including a spark direction changing portion formed by bending an end portion of the side plate in a longitudinal direction of the side plate toward the cell stack; and a bus bar frame assembly covering an opening portion formed on a side of the module housing in a longitudinal direction of the module housing, the bus bar frame assembly including a bus bar frame coupled to a side of the cells tack in a longitudinal direction of the cell stack and a bus bar located on the bus bar frame and coupled to an electrode lead of the battery cell.

Abstract: A battery module includes a cell stack in which a plurality of battery cells are vertically stacked; a module housing including a base plate supporting the cell stack and a pair of side plates covering both side portions of the cell stack; a bus bar frame assembly covering an opening portion formed on a side of the module housing in a longitudinal direction of the module housing; and a plurality of spark delay portions protruding from an inner surface of each of the pair of side plates and spaced apart from one another in a height direction of the side plate.

Abstract: A battery pack includes a sub-pack including a plurality of battery modules that are located adjacent to one another; a duct coupled to a side of the sub-pack in a width direction of the sub-pack; and a duct cover covering a duct opening portion formed on a side of the duct in a longitudinal direction of the duct, the duct cover including a filter having a mesh structure.

Abstract: A battery module includes a cell stack in which a plurality of battery cells are vertically stacked; a module housing including a base plate supporting the cell stack and a pair of side plates covering both side portions of the cell stack; and a bus bar frame assembly covering an opening portion formed on a side of the module housing in a longitudinal direction of the module housing, wherein each of the pair of side plates includes: a plurality of spark delay protrusions protruding from an inner surface of the side plate; and a plurality of spark delay concave portions recessed from the inner surface of the side plate.

Abstract: A battery pack secures safety even when a high-temperature gas or the like is generated therein due to thermal runaway or the like. The battery pack includes a battery module having at least one battery cell and a module terminal; a pack case configured to cover at least a part of an outer side of the battery module and having a pack terminal on at least one side; and a safety bus bar connected between the module terminal and the pack terminal or between the module terminals to provide a power path and configured to block the power path by a venting gas discharged from the battery module.

Abstract: A battery module may include a cell assembly having a plurality of battery cells; a module case provided to accommodate the cell assembly and having an opening on at least one side; and an oxygen inflow blocking cover covering the opening. The oxygen inflow blocking cover may include two or more partition walls each having a vent hole, overlapping each other, provided to cover the opening, and configured such that gas is discharged to the outside of the module case through the vent hole when the gas is generated in the cell assembly; and a hole blocking member positioned between the partition walls and configured to block the vent hole by deforming its shape when heat is applied.

Abstract: A battery module includes a cell assembly including a plurality of secondary batteries stacked on each other; and a module case including a lower plate, a side plate and an upper plate to form an inner space so that the cell assembly is accommodated therein, the module case including a trap unit formed in at least a part of an inner surface of the side plate to be concave outward.

Abstract: A battery module effectively prevents the occurrence or spread of fire. The battery module includes a cell assembly including a plurality of secondary batteries stacked on each other; and a module case including a lower plate, a side plate and an upper plate to form an inner space so that the cell assembly is accommodated therein, the module case including a trap unit formed in at least a part of an inner surface of the side plate to be concave outward, the trap unit being formed to be biased in a front or rear direction.

Abstract: Discussed is a battery pack that can effectively suppress a fire even when high-temperature gas or sparks are generated in some battery modules. The battery pack may include at least one battery module having at least one secondary battery and configured to store and release energy, a duct provided to at least one side of the at least one battery module and configured discharge hole configured to discharge a gas generated from the at least one battery module, when the generated gas flows toward the discharge hole, and an opening/closing member located at the discharge hole of the duct and configured to open the discharge hole when an internal pressure of the duct is at or above a predetermined level and to close the discharge hole when the internal pressure of the duct is at or below the predetermined level.

Abstract: Disclosed is a battery module with reduced risk of fire propagation or explosion. To achieve the above-described object, the battery module according to the present disclosure includes a cell assembly including a plurality of secondary batteries, a module housing in which the cell assembly is received in an internal space, the module housing having an opening through which the internal space is in communication with an external space, and an adjustment cover configured to cover at least a part of the opening to fill a fire extinguishing agent supplied into the battery module to a predetermined height or above.

Abstract: A battery module effectively suppresses a fire even when high-temperature gas or sparks are generated therein due to thermal propagation. The battery module includes a cell assembly configured such that secondary batteries having electrode leads are stacked in at least one direction; a module case configured to accommodate the cell assembly in an inner space thereof; a bus bar assembly located on at least one side of the module case and including a module bus bar made of an electrically conductive material and electrically connected to the electrode leads of the cell assembly and a bus bar housing configured so that the module bus bar is placed thereon and having a slot through which the electrode lead passes; and a blocking member located at the slot of the bus bar housing to close at least a portion of the slot by transforming a shape thereof when heat is applied thereto.

Abstract: Discussed is a battery module that may include a cell stack in which a plurality of battery cells are vertically stacked, a module housing in which the cell stack is accommodated, a bus bar frame assembly covering an opening portion on a side of the module housing in a longitudinal direction of the module housing, and a fire-proof sheet assembly between the bus bar frame assembly and the cell stack and coupled to the bus bar frame assembly.

Abstract: A battery module prevents heat transfer to an adjacent battery cell when thermal runaway occurs. The battery module includes a plurality of battery cells, each battery cell having electrode leads, a case configured to receive the plurality of battery cells, and a thermal insulation member located between the plurality of battery cells, the thermal insulation member being configured to interrupt heat transfer between adjacent ones of the battery cells. The thermal insulation member is configured to have a composite structure including an outer portion made of plastic having a lower melting point than temperature when thermal runaway occurs and a support member provided in an inner portion of the thermal insulation member, the support member being made of a heat-resistant material having a higher melting point than the temperature when the thermal runaway occurs.

Abstract: A battery module includes a pocket capable of capturing flare and spark ejected at the time of swelling, a cell stack including a plurality of battery cells stacked in a vertical direction and a protective case configured to receive the cell stack. The protective case includes a lower cover located under the cell stack, an upper cover located above the cell stack, and a pair of side covers located at sides of the cell stack. Each of the side covers is provided at the inside thereof with a structure configured to interrupt movement of flare and spark ejected at the time of swelling.

Abstract: A battery module includes a partition wall and a thermal insulation layer for thermal runaway prevention, and more particularly a battery module is configured such that a cell module assembly includes two or more cell stacks, in each of which a plurality of battery cells is stacked in a vertical direction, is received in a space portion defined in a protective case and such that one more partition walls are provided in at least one of between neighboring ones of the cell stacks and between the cell stacks and the protective case.

Abstract: A battery pack includes at least one cell assembly including a plurality of secondary batteries stacked in a direction, a module housing having an internal space in which the at least one cell assembly is received, and a spacer member interposed between the plurality of secondary batteries, and configured to press the plurality of secondary batteries in two directions to space the plurality of secondary batteries apart when a temperature of at least one of the plurality of secondary batteries is equal to or higher than a predetermined temperature.