Abstract: A battery pack with has improved safety. The battery pack includes a plurality of battery modules having at least one battery cell and provided in plurality to be arranged side by side with each other so that a predetermined gap is formed between facing battery modules.

Abstract: A battery module includes at least one battery cell, a module case accommodating the at least one battery cell, at least one leakage prevention pocket provided in the module case to prevent leakage of flame or spark in case of an abnormal situation of the at least one battery cell, and a fire extinguishing agent injection unit provided to the at least one leakage prevention pocket and configured to inject a fire extinguishing agent into the module case in the event of the abnormal situation.

Abstract: A battery pack includes a module assembly including a plurality of battery modules arranged in a first direction, a vent channel located on a surface of the module assembly and configured to communicate with each of the plurality of battery modules, and a discharge delay member provided in the vent channel and configured to delay discharge of venting gas generated in at least some of the plurality of battery modules and introduced into the vent channel.

Abstract: A battery pack includes a module assembly including a plurality of battery modules each including, on a side, a module opening through which venting gas is discharged, a pack cover facing the module opening and configured to cover the side of the module assembly, and an oxygen introduction preventing member located in a space formed between the module assembly and the pack cover and configured to prevent oxygen from being reversely introduced after venting gas is discharged in an extension direction of the space.

Abstract: A battery module includes a plurality of battery cells, at least one cooling channel provided on at least one side of the plurality of battery cells and through which a coolant for cooling the plurality of battery cells flows, and at least one cooling fin unit disposed in contact with the at least one cooling channel and having at least one support rib for supporting the at least one cooling channel.

Abstract: A battery pack has improved safety. The battery pack includes a battery module having at least one battery cell; and a thermal runaway suppression unit mounted to one side of the battery module and configured to form a positive pressure inside the battery module when an abnormal situation occurs in any one battery cell.

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 module includes at least one battery cell, a module case accommodating the at least one battery cell, at least one leakage prevention pocket provided in the module case to prevent leakage of flame or spark in case of an abnormal situation of the at least one battery cell, and a fire extinguishing capsule unit provided to the at least one leakage prevention pocket and configured to discharge a fire extinguishing agent into the module case by the flame or spark in the event of the abnormal situation.

Abstract: A battery system includes a plurality of battery packs; a duct configured to communicate with the inside of each of the plurality of battery packs; and a cooling fan connected to the duct and configured to perform both the forward rotation and reverse rotation.

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 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 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 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 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 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.