Abstract: The present disclosure relates to a battery assembly, wherein the battery assembly according to one aspect may include: a plurality of battery cells; and a plurality of barriers, wherein the plurality of battery cells and the plurality of barriers may be stacked in a first direction to form a stack, wherein the plurality of barriers may include one or more first barriers and one or more second barriers, wherein a thickness of the first barrier may be from 25% to 200% of a thickness of the battery cells, and a thickness of the second barrier may be 10% or less of the thickness of the first barrier.

Abstract: The present disclosure relates to a flame-retardant assembly for a battery, comprising a flame-retardant member including an elastic material and formed to have a predetermined first volume, and a housing configured to receive the flame-retardant member by compressing the flame-retardant member to a predetermined second volume smaller than the first volume. In addition, the present disclosure relates to a battery assembly comprising a plurality of battery cells, a receiving case configured to receive the plurality of battery cells, an insertion space formed between the plurality of battery cells and the receiving case, and the flame-retardant assembly disposed in the insertion space.

Abstract: The embodiments of the present disclosure relate to a fire-retardant assembly and a battery assembly comprising the same. According to one embodiment of the fire-retardant assembly comprising a fire-retardant member including a fire-retardant material; and an exterior material configured to accommodate the fire-retardant member therein, wherein the fire-retardant material may comprise vermiculite.

Abstract: The present disclosure relates to a battery assembly comprising a plurality of battery cells stacked along a direction; and a housing accommodating the plurality of battery cells; wherein each of the plurality of battery cells may include an electrode assembly, an outer body accommodating the electrode assembly, and a tab portion protruding outwardly from the outer body, and wherein a portion of the outer body of at least one battery cell among the plurality of battery cells may be coated with a fire-resistant material.

Abstract: A battery module includes a cell array including a plurality of battery cells and a module housing accommodating the cell array, wherein the module housing includes a lower frame and an upper cover, the upper cover includes a venting portion, and the venting portion includes a weakened portion formed to be at least partially melted at or above a set temperature.

Abstract: A battery module includes a cell assembly including a plurality of battery cells, a busbar assembly electrically connecting the plurality of battery cells, and a module housing accommodating the cell assembly including the plurality of battery cells and including a lower plate, a side cover, an upper case and a venting flap case covering a portion of an upper area of the upper case. The upper case includes at least one venting hole, and the venting flap case includes at least one discharge portion covering the venting hole and configured to be at least partially bent by pressure when an event occurs and open the venting hole.

Abstract: A battery module includes a lower frame including a plurality of accommodation spaces and a partition partitioning the plurality of accommodation spaces, at least one battery cell accommodated in each of the plurality of accommodation spaces, an upper cover disposed above the plurality of accommodation spaces and including a primary vent hole, a primary barrier disposed on one surface of the upper cover and including a porous structure, and a secondary barrier disposed on one surface of the primary barrier and including a secondary vent hole. The primary vent hole and the secondary vent hole are disposed to be offset from each other.

Abstract: The present disclosure relates to a battery assembly comprising: a plurality of battery cells stacked and arranged in a predetermined stacking direction; an accommodation case housing the plurality of battery cells; an insertion space formed between the plurality of battery cells and the accommodation case along the stacking direction; and a thermal delay assembly located in the insertion space, the thermal delay assembly including: a fire-extinguishing member; and a columnar housing member housing the fire-extinguishing members therein and extending along a height direction of the accommodation case; and an assembly method thereof.

Abstract: The present disclosure relates to a battery module including: a plurality of battery cells; a busbar assembly disposed on one side of the plurality of battery cells and connected to the plurality of battery cells; and a protective member disposed on at least a portion of one side of the busbar assembly facing the plurality of battery cells.

Abstract: A battery assembly of the present disclosure includes: a plurality of battery cells, which each include a main body portion storing and supplying electric energy and a tab portion protruding outwardly from the main body portion and electrically connecting the main body portion and the outside and are stacked along one direction; an accommodating housing accommodating the plurality of battery cells therein; a busbar assembly positioned inside the accommodating housing and including a through-hole formed on one surface thereof, wherein the tab portion is inserted into the through-hole to electrically connect at least a part of the plurality of battery cells to each other; and a pillar-shaped flame retardant portion positioned in an insertion space formed between the main body portion and the busbar assembly by tab portions of two adjacent battery cells among the plurality of battery cells.

Abstract: The present disclosure relates to a battery pack including a plurality of battery cells, a pack case which accommodates the plurality of battery cells, a partition located inside the pack case and dividing an internal space of the pack case to form a cell accommodation space in which the plurality of battery cells are accommodated, a member accommodation space located adjacent to the cell accommodation space within the pack case, and an insertion member located in the member accommodation space and including fire-resistant particles.

Abstract: A battery module includes a cell assembly including a plurality of battery cells; and a case including a main plate supporting the cell assembly and a side wall extending from the main plate in a first direction. The main plate includes a central portion and an end region extending from the central portion. At least a portion of the central portion protrudes further in the first direction, than at least a portion of the end region, or is coplanar with the at least a portion of the end region.

Abstract: A checking device is disclosed. In some implementations, the checking device may include a clamp including a base and a linkage structure connected to the base, a first support member fastened to the base, the first support member having a through-hole corresponding to a fastening hole of an object, and a second support member connected to the linkage structure, the second support member moving relative to the first support member, based on movement of the linkage structure. The second support member may oppose the first support member with the object interposed therebetween. The through-hole may accommodate a checking pin passing through the through-hole and the fastening hole.

Abstract: An eco-friendly power source, such as a battery module for a transportation vehicle, including a housing having an internal space; a cell stack accommodated in the internal space and including a plurality of battery cells; a busbar assembly including a busbar electrically connecting the plurality of battery cells to each other; and an insulation cover assembly preventing short circuit between the busbar and the housing, wherein the insulation cover assembly includes a cover frame disposed between the busbar and the housing; and a short-circuit prevention member coupled to the cover frame.

Abstract: The present disclosure relates to a battery assembly including: a plurality of battery cells arranged in a preset stacking direction; an accommodating case accommodating the plurality of battery cells; an insertion space defined the plurality of battery cells and the accommodating case along the stacking direction; and an insertion member positioned in the insertion space, wherein the insertion member includes refractory particles; and a binder that binds the refractory particles to form a preset three-dimensional shape.

Abstract: A battery device includes a cell assembly; a case accommodating the cell assembly; and at least one venting portion in the case to discharge gas generated from the cell assembly to the outside of the case; wherein the at least one venting portion includes a hole cover surrounded by a first region formed by cutting a surface of the case and a second region connected to a surface of the case, and a sealing member covering the first region, wherein the hole cover is lifted from a surface of the case and comprises a venting hole in the at least one venting portion, and wherein the sealing member seals the first region to prevent gas from flowing through the first region in a state in which the hole cover covers the venting hole.

Abstract: An eco-friendly power source, such as a battery module for a transportation vehicle, including a housing having an internal space; a cell stack accommodated in the internal space and including a plurality of battery cells; a busbar assembly including a busbar electrically connecting the plurality of battery cells to each other; and an insulation cover assembly preventing short circuit between the busbar and the housing, wherein the insulation cover assembly includes a cover frame disposed between the busbar and the housing; and a short-circuit prevention member coupled to the cover frame.