Battery module and battery pack including the same

Abstract

A battery module according to some embodiments includes: a plurality of pouch-shaped cells arranged in a first direction, each pouch-shaped cell including an electrode lead protruding in a second direction perpendicular to the first direction; a module frame that houses the plurality of pouch-shaped cells and is open in the second direction; a busbar electrically connected to the plurality of electrode leads of the plurality of pouch-shaped cells; and a busbar frame located between the busbar and the plurality of pouch-shaped cells and including a plurality of slits and a plurality of vent suppression portions, wherein each pouch-shaped cell includes: a central portion containing an electrode assembly; an air pocket portion at the edge of the central portion; and a sealing portion at the edge of the air pocket portion, the electrode leads of the respective pouch-shaped cells passing through the respective slits, and the plurality of vent suppression portions being capable of overlapping a portion of the sealing portion of the respective pouch-shaped cells in the first direction. Therefore, the battery module according to some embodiments can suppress venting in the direction of the electrode leads and does not compress the air pocket portions of the pouch-shaped cells, thereby allowing the air pocket portions of the pouch-shaped cells to perform their original functions.

Description

Technical Field

[0001] This disclosure relates to a battery module and a battery pack including the battery module.

[0002] This application claims priority to Korean Patent Application No. 10-2024-0157654, filed on November 8, 2024, the entire contents of which are hereby incorporated by reference. Background Technology

[0003] Rechargeable batteries can be reused for extended periods through recharging. They are used in various fields such as mobility, portable electronic devices, and energy storage systems (ESS). Specifically, the demand for rechargeable batteries for mobility applications is increasing to reduce dependence on fossil fuels and carbon emissions. However, concerns about the safety of rechargeable batteries remain a significant issue that needs to be addressed.

[0004] In mobile transportation, multiple battery cells are used to ensure performance characteristics such as output and driving range. Generally, multiple battery cells form a battery module, and a battery pack consisting of multiple battery modules is installed in the vehicle. In this case, the battery cells constituting a battery module are positioned adjacent to each other, and the battery modules constituting a battery pack are also positioned adjacent to each other. Therefore, when a thermal runaway event occurs in some battery cells, it can easily spread to adjacent battery cells. If such thermal spread occurs in a chain reaction, it may trigger a large explosion or fire.

[0005] In the event of thermal runaway, high-temperature gases, flames, particles, etc., inside the battery cell may be released in random directions. To prevent large-scale explosions or fires, technology capable of controlling the direction of this release is needed. Summary of the Invention

[0006] Technical issues

[0007] The problem to be solved by this disclosure is to provide a battery module capable of controlling the direction of exhaust.

[0008] Technical solution

[0009] Some implementation methods of this disclosure that can solve the above problems are as follows.

[0010] According to some embodiments, the battery module includes: A plurality of pouch cells are arranged in a first direction, wherein each of the plurality of pouch cells includes an electrode lead protruding in a second direction perpendicular to the first direction; A module frame that accommodates the plurality of pouch cells and is open in the second direction; A busbar electrically connected to multiple electrode leads of the plurality of pouch cells; and A busbar frame supports the busbar and includes multiple slits and multiple exhaust suppression sections, wherein... Each of the plurality of pouch cells includes: The electrode assembly is located in a central portion, an air pocket portion at the edge of the central portion, and a sealing portion at the edge of the air pocket portion, wherein... The electrode lead of a corresponding one of the plurality of pouch cells passes through each of the plurality of slits, and The plurality of exhaust suppression portions overlap with a portion of the sealing portion of a corresponding one of the plurality of pouch cells in the first direction.

[0011] In some embodiments, each of the plurality of pouch cells has a rectangular shape, the sealing portion includes a short-side sealing portion and a long-side sealing portion, and the plurality of vent suppression portions overlap with the short-side sealing portion of a corresponding one of the plurality of pouch cells in the first direction.

[0012] In some embodiments, the plurality of pouch cells include a first battery cell, the first battery cell including a first electrode lead and a first short-side sealing portion, the plurality of slits including a first slit, and the plurality of venting suppression portions including a first venting suppression portion and a second venting suppression portion, the first venting suppression portion and the second venting suppression portion guiding the first electrode lead to the first slit, the first venting suppression portion contacting one surface of the first short-side sealing portion, and the second venting suppression portion contacting the opposite surface of the first short-side sealing portion.

[0013] In some embodiments, the plurality of pouch cells include a first battery cell and a second battery cell. The first battery cell includes a first electrode lead and a first short-side sealing portion. The second battery cell includes a second electrode lead and a second short-side sealing portion. The plurality of slits includes a first slit. The plurality of venting suppression portions include a first venting suppression portion, a second venting suppression portion, and a third venting suppression portion. The first venting suppression portion guides the first electrode lead to the first slit. The second venting suppression portion guides the second electrode lead to the first slit. The third venting suppression portion guides both the first and second electrode leads to the first slit and is located between the first and second venting suppression portions. The first venting suppression portion contacts one surface of the first short-side sealing portion. The second venting suppression portion contacts one surface of the second short-side sealing portion. The third venting suppression portion contacts the opposite surface of the first short-side sealing portion and the opposite surface of the second short-side sealing portion.

[0014] In some embodiments, the air bag portion includes a short-side air bag portion and a long-side air bag portion, and the plurality of exhaust suppression portions do not overlap with the short-side air bag portion of a corresponding one of the plurality of bag-shaped cells in the first direction.

[0015] In some embodiments, the air bag portion includes a short-side air bag portion and a long-side air bag portion, and each of the plurality of exhaust suppression portions overlaps with the short-side air bag portion of a corresponding one of the plurality of bag-shaped cells in the first direction.

[0016] In some embodiments, each of the plurality of exhaust suppression sections does not contact the short-side air bag portion of the corresponding one of the plurality of bag-shaped cells.

[0017] In some embodiments, the module frame may include a top plate that includes a plurality of vent holes.

[0018] According to some implementations, the battery pack includes: A battery pack housing, the battery pack housing including a base plate and side walls; Multiple battery modules on the battery pack housing; and A cover plate, which covers the plurality of battery modules and is connected to the battery pack housing, is also provided. in, Each of the plurality of battery modules includes: A plurality of pouch cells are arranged in a first direction, wherein each of the plurality of pouch cells includes an electrode lead protruding in a second direction perpendicular to the first direction; A module frame that accommodates the plurality of pouch cells and is open in the second direction; A busbar electrically connected to multiple electrode leads of the plurality of pouch cells; and A busbar frame supports the busbar and includes multiple slits and multiple exhaust suppression sections, wherein... Each of the plurality of pouch-shaped cells includes a central portion containing the electrode assembly, an air pocket portion at the edge of the central portion, and a sealing portion at the edge of the air pocket portion. The electrode lead of a corresponding one of the plurality of pouch cells passes through each of the plurality of slits, and The plurality of exhaust suppression portions overlap with a portion of the sealing portion of a corresponding one of the plurality of pouch cells in the first direction.

[0019] In some embodiments, the module frame may include a top plate that includes a plurality of vent holes.

[0020] According to some embodiments, the battery pack may also include at least one venting device disposed on at least one of the sidewalls.

[0021] Beneficial effects

[0022] The battery module according to some embodiments of the present disclosure can suppress venting in the direction of the electrode leads and will not compress the air pocket of the bag-shaped battery cell, thereby allowing the air pocket of the bag-shaped battery cell to perform its original function.

[0023] The effects of some embodiments of this disclosure are not limited to those mentioned above, and those skilled in the art to which this disclosure pertains can clearly deduce and understand other effects not mentioned from the following description. That is, the unintended effects produced by implementing some embodiments of this disclosure can also be clearly deduced and understood by those skilled in the art to which this disclosure pertains. Attached Figure Description

[0024] Figure 1 This is a perspective view of a battery module according to some implementation methods.

[0025] Figure 2 This is a partial exploded view of a battery module according to some implementation methods.

[0026] Figure 3 This is a view showing a pouch-shaped battery cell.

[0027] Figure 4 This is a front view used to explain in more detail the multiple pouch cells, busbar frame, and busbar.

[0028] Figure 5 It is a three-dimensional diagram used to explain in more detail the multiple pouch cells, busbar frames, and busbars.

[0029] Figure 6 It is along Figure 5 A portion of the sectional view is cut off by the cutting line VI-VI'.

[0030] Figure 7 This is a rear-view perspective view of the busbar frame.

[0031] Figure 8 This is a view showing a battery module according to other embodiments.

[0032] Figure 9 This is a view showing a battery module according to yet another embodiment.

[0033] Figure 10 This is a view showing a battery pack according to some embodiments. Detailed Implementation

[0034] The terms or words used in this disclosure should not be construed as limited to their usual or dictionary meanings, but should be interpreted in a way consistent with the technical concept of this disclosure, based on the principle that the inventors can appropriately define the meaning of the terms or words in order to best describe their invention.

[0035] In this disclosure, terms such as "comprising" or "having" are intended to indicate the presence of the features, quantities, steps, operations, components, parts, or combinations thereof described in this disclosure, and should not be construed as pre-excluding the possibility of the presence or addition of one or more other features, quantities, steps, operations, components, parts, or combinations thereof. Furthermore, when a component such as a layer, membrane, region, or plate is referred to as being "on" another component, this includes not only the case where the component is directly on the other component, but also the case where another component exists between the two. Conversely, when a component such as a layer, membrane, region, or plate is referred to as being "below" another component, this includes not only the case where the component is directly below the other component, but also the case where another component exists between the two.

[0036] The embodiments and accompanying drawings described herein are merely examples and do not represent the entirety of the technical concept of this disclosure. Therefore, it should be understood that various equivalent and modified solutions that can replace the above-described embodiments are possible without departing from the technical spirit of this disclosure.

[0037] In describing this disclosure, detailed descriptions of structures or functions known in the art are omitted if such detailed descriptions might obscure the gist of this disclosure.

[0038] To enable those skilled in the art to more fully understand this disclosure, the accompanying drawings are for illustrative purposes only. Therefore, for clarity, the shapes, sizes, and quantities of the constituent elements in the drawings may be enlarged, reduced, omitted, or schematically represented. The shapes, sizes, proportions, and quantities of the constituent elements in the drawings do not fully reflect the actual shapes, sizes, proportions, and quantities of the constituent elements.

[0039] In this disclosure, for ease of explanation, a three-dimensional Cartesian coordinate system is used to describe the location of the structures, the shape of the structures, and the relationships between the structures. Figures 1 to 10 The X-axis, Y-axis, and Z-axis are indicated in the diagram. In this specification, "X direction" refers to the direction parallel to the X-axis. In this specification, "+X direction" refers to the direction parallel to the X-axis. Figures 1 to 10 The arrow pointing to the X-axis points in the same direction. In this specification, "-X direction" means the same as the direction indicated by the arrow. Figures 1 to 10 The arrow pointing to the X-axis points in the opposite direction. In this specification, "Y direction" refers to the direction parallel to the Y-axis. In this specification, "+Y direction" refers to the direction parallel to the Y-axis. Figures 1 to 10 The arrow pointing to the Y-axis points in the same direction. In this specification, "-Y direction" means the same as the direction indicated by the arrow. Figures 1 to 10 The arrow pointing to the Y-axis points in the opposite direction. In this specification, "Z direction" refers to the direction parallel to the Z-axis. In this specification, "+Z direction" refers to the direction parallel to the Z-axis. Figures 1 to 10 The arrow pointing to the Z-axis indicates the same direction. In this specification, "-Z direction" means the same as... Figures 1 to 10 The arrow pointing to the Z-axis in the middle points in the opposite direction.

[0040] The embodiments of this disclosure will be described in detail below with reference to the accompanying drawings.

[0041] (First Implementation)

[0042] Figure 1 This is a perspective view of a battery module 1100 according to some embodiments.

[0043] Figure 2 This is a partial exploded view of a battery module 1100 according to some embodiments.

[0044] refer to Figure 1 and Figure 2 The battery module 1100 may include multiple pouch cells 1110, a module frame 1120, a busbar frame 1130, busbars 1140P, 1140I, 1140N, an insulating cover 1150, and an end plate 1160.

[0045] Each of the multiple pouch cells 1110 may include an electrode assembly, electrode tabs, electrode leads 1111N, 1111P, electrolyte, and pouch membrane.

[0046] The electrode assembly may include a positive electrode, a negative electrode, and a separator. The positive electrode may include a positive electrode active material layer and a positive electrode current collector. The negative electrode may include a negative electrode active material layer and a negative electrode current collector. The electrode assembly may be of the wound-core type or the laminated type. The wound-core type may have the following structure: the positive electrode, the negative electrode, and the separator are wound together. The laminated type may have the following structure: a first electrode unit including a first positive electrode, a first negative electrode, and a first separator, and a second electrode unit including a second positive electrode, a second negative electrode, and a second separator are laminated in such a way that a third separator is interposed therebetween. The electrolyte may be of the liquid type or the gel type.

[0047] The electrode tabs may include a positive electrode tab and a negative electrode tab. The positive electrode tab can be connected to a positive current collector. The positive electrode tab can be soldered to a positive current collector. The negative electrode tab can be connected to a negative current collector. The negative electrode tab can be soldered to a negative current collector.

[0048] Electrode lead 1111N can be connected to the negative electrode tab. Electrode lead 1111N can be soldered to the negative electrode tab. Electrode lead 1111P can be connected to the positive electrode tab. Electrode lead 1111P can be soldered to the positive electrode tab. Electrode leads 1111N and 1111P can protrude in opposite directions or in the same direction. This disclosure only describes embodiments in which electrode leads 1111N and 1111P protrude in opposite directions. Embodiments in which electrode leads 1111N and 1111P protrude in the same direction will be readily apparent to those skilled in the art to which this disclosure pertains.

[0049] Figure 3 This is a view showing the pouch cell 1110.

[0050] refer to Figure 3 The pouch-shaped battery cell 1110 can be generally rectangular in shape. The pouch-shaped battery cell 1110 may include a central portion C, an air pocket portion GP, ​​a sealing portion SP, and a folded portion F.

[0051] The electrode assembly can be located in the central portion C. The central portion C can be a portion protruding in the Y direction within the pouch-shaped cell 1110. The length of the central portion C in the Y direction can be greater than the length of the air bag portion GP in the Y direction. The length of the central portion C in the Y direction can be greater than the length of the sealing portion (SP) in the Y direction. The length of the central portion C in the Y direction can be greater than the length of the fold portion F in the Y direction.

[0052] The gas pocket GP can be located at the edge of the central portion C. The gas pocket GP may not be sealed. Even if the bag-shaped cell 1110 does not experience a thermal runaway event, gas may still be generated inside the bag-shaped cell 1110 when it undergoes multiple charge and discharge cycles, or when the temperature of the bag-shaped cell 1110 rises above a certain level. The gas pocket GP is capable of containing the gas generated inside the bag-shaped cell 1110. The gas pocket GP, which contains the gas generated inside the bag-shaped cell 1110, can expand.

[0053] The airbag section GP may include short-side airbag sections GP_SS_N and GP_SS_P, and a long-side airbag section GP_LS. The short-side airbag sections GP_SS_N and GP_SS_P may be spaced apart from each other in the X direction with a central section C between them. The short-side airbag section GP_SS_N may be connected to the central section C in the +X direction. The short-side airbag section GP_SS_P may be connected to the central section C in the -X direction. The long-side airbag section GP_LS may be connected to the central section C in the +Z direction. The end of the long-side airbag section GP_LS in the +X direction may be connected to the end of the short-side airbag section GP_SS_N in the +Z direction. The end of the long-side airbag section GP_LS in the -X direction may be connected to the end of the short-side airbag section GP_SS_P in the +Z direction.

[0054] The sealing portion SP can be located at the edge of the gas bag portion GP. The sealing portion SP can be the part of the bag-shaped membrane of the bag-shaped cell 1110 that is bonded (e.g., by heat sealing). As described above, even if gas is generated inside the bag-shaped cell 1110 and the internal pressure of the bag-shaped cell 1110 increases, the sealing portion SP can still maintain the sealed state of the bag-shaped cell 1110. However, if an accident such as a thermal runaway event occurs in the bag-shaped cell 1110, causing the internal pressure to become too high, the sealing state of the sealing portion SP may be released, thereby releasing the sealed state of the bag-shaped cell 1110.

[0055] The sealing portion SP may include short-side sealing portions SP_SS_N and SP_SS_P, and a long-side sealing portion SP_LS. The short-side sealing portions SP_SS_N and SP_SS_P may be spaced apart in the X direction with the central portion C and the short-side air pocket portions GP_SS_N and GP_SS_P located between them. The short-side sealing portion SP_SS_N may be connected to the short-side air pocket portion GP_SS_N in the +X direction. The short-side sealing portion SP_SS_P may be connected to the short-side air pocket portion GP_SS_P in the -X direction. The long-side sealing portion SP_LS may be connected to the long-side air pocket portion GP_LS in the +Z direction. The end of the long-side sealing portion SP_LS in the +X direction may be connected to the end of the short-side sealing portion SP_SS_N in the +Z direction. The end of the long-side sealing portion SP_LS in the -X direction may be connected to the end of the short-side sealing portion SP_SS_P in the +Z direction.

[0056] The fold F can be located at the edge of the central portion C. The fold F can be unsealed. The fold F can be connected to the central portion C in the -Z direction. The fold F can be formed during a process of folding a monolithic pouch film to place an electrode assembly and electrode tabs thereon, such that the monolithic pouch film surrounds the electrode assembly and electrode tabs. When using two pouch films (e.g., placing the electrode assembly and electrode tabs on one pouch film, covering them with another pouch film, and then bonding the two pouch films together by heat sealing or the like), the sealing portion SP can be located at the fold F.

[0057] Electrode leads 1111N and 1111P can protrude in the X direction. Figure 3 In this embodiment, electrode lead 1111N protrudes in the +X direction, and electrode lead 1111P protrudes in the -X direction; this is merely an example. Conversely, electrode lead 1111N may protrude in the -X direction, and electrode lead 1111P may protrude in the +X direction.

[0058] The short-side air pocket portion GP_SS_N can be located between the short-side sealing portion SP_SS_N and the central portion C. The short-side air pocket portion GP_SS_P can be located between the short-side sealing portion SP_SS_P and the central portion C. The short-side sealing portion SP_SS_N can be located between the electrode lead 1111N and the short-side air pocket portion GP_SS_N. The short-side sealing portion SP_SS_P can be located between the electrode lead 1111P and the short-side air pocket portion GP_SS_P.

[0059] The module frame 1120 is capable of accommodating multiple pouch-shaped battery cells 1110. The module frame 1120 may have an opening in the X direction. The module frame 1120 may include a top plate 1121, which includes multiple vent holes VH. The module frame 1120 can be formed by connecting the U-shaped frame and the top plate 1121 using methods such as welding. The module frame 1120 can be a single, integral frame, wherein the top plate 1121 may be part of this single frame.

[0060] Refer again Figure 2 The busbar frame 1130 can cover the opening of the module frame 1120 in the +X direction. The busbar frame 1130 can cover multiple pouch cells 1110 in the +X direction. The busbar frame 1130 can support busbars 1140P, 1140I, and 1140N. The busbar frame 1130 can be located between the busbars 1140P, 1140I, and 1140N and the electrode assemblies of the multiple pouch cells 1110. The material of the busbar frame 1130 can be a material with high electrical insulation and fire resistance.

[0061] Busbars 1140P, 1140I, and 1140N can enable parallel and / or series connections of multiple pouch cells 1110. A portion of busbars 1140P and 1140N may be exposed outside the battery module 1100. Electrical connections between the battery module 1100 and external systems can be achieved via a portion of busbars 1140P and 1140N. Busbar 1140I may be located between busbars 1140P and 1140N. Busbar 1140I may have a generally O-shaped configuration.

[0062] The insulating cover 1150 covers the busbar frame 1130 and busbars 1140P, 1140I, and 1140N in the +X direction. The insulating cover 1150 may include holes and support portions. A portion of busbars 1140P and 1140N may be exposed to the outside of the battery module 1100 through the holes. The support portions may support a portion of busbars 1140P and 1140N. The insulating cover may be made of a material with high electrical insulation and fire resistance.

[0063] End plate 1160 can cover insulating cover 1150 in the +X direction. End plate 1160 may include holes. A portion of busbars 1140P and 1140N can be exposed to the outside of battery module 1100 through the holes. The material of end plate 1160 can be a material with high rigidity and heat resistance.

[0064] Figure 4 This is a front view used to further explain the multiple pouch cells 1110, the busbar frame 1130, and the busbars 1140P, 1140I, and 1140N.

[0065] Figure 5 It is a three-dimensional diagram used to explain in more detail the multiple pouch cells 1110, the busbar frame 1130, and the busbars 1140P, 1140I, and 1140N.

[0066] Figure 6 It is along Figure 5 A portion of the sectional view is cut off by the cutting line VI-VI'.

[0067] refer to Figures 4 to 6 Multiple pouch cells 1110 can be arranged in the Y direction. The multiple pouch cells 1110 can be constructed into multiple groups. Each group may include one or more pouch cells 1110 connected in parallel with each other. The multiple groups may be connected in series with each other. When the multiple pouch cells 1110 consist of n groups, and each of the n groups consists of m pouch cells, the connection method of the multiple pouch cells 1110 can be called m parallel n series.

[0068] The number of pouch cells 1110, the number of groups, the number of pouch cells constituting each group, and the connection method of the pouch cells 1110 can be determined based on the current and voltage amplitude required by the battery module 1100. This disclosure describes only one embodiment. Other embodiments can be readily conceived by those skilled in the art to which this disclosure pertains.

[0069] The electrode lead 1111N of bag-shaped cells 1110_1, 1110_2, 1110_5, 1110_6, 1110_9, 1110_10, 1110_13, 1110_14, 1110_17, 1110_18, 1110_21, and 1110_22 can protrude in the +X direction. The electrode lead 1111P of bag-shaped cells 1110_3, 1110_4, 1110_7, 1110_8, 1110_11, 1110_12, 1110_15, 1110_16, 1110_19, 1110_20, 1110_23, and 1110_24 can protrude in the +X direction.

[0070] The electrode leads 1111N of the pouch cells 1110_1 and 1110_2 can be connected to the busbar 1140N by methods such as welding. Pouch cells 1110_1 and 1110_2 can be connected in parallel to form a first group. The electrode leads 1111P of the pouch cells 1110_3 and 1110_4 can be connected to the busbar 1140I_1 by methods such as welding. Pouch cells 1110_3 and 1110_4 can be connected in parallel to each other to form a second group. The electrode leads 1111N of the pouch cells 1110_5 and 1110_6 can be connected to the busbar 1140I_1 by methods such as welding. Pouch cells 1110_5 and 1110_6 can be connected in parallel to each other to form a third group. The electrode leads 1111P of the pouch cells 1110_7 and 1110_8 can be connected to the busbar 1140I_2 by methods such as welding. Pouch cells 1110_7 and 1110_8 can be connected in parallel to form a fourth group. The electrode leads 1111N of the pouch cells 1110_9 and 1110_10 can be connected to the busbar 1140I_2 by methods such as welding. Pouch cells 1110_9 and 1110_10 can be connected in parallel to form a fifth group. The electrode leads 1111P of the pouch cells 1110_11 and 1110_12 can be connected to the busbar 1140I_3 by methods such as welding. Pouch cells 1110_11 and 1110_12 can be connected in parallel to form a sixth group. The electrode leads 1111N of the pouch cells 1110_13 and 1110_14 can be connected to the busbar 1140I_3 by methods such as welding. Pouch cells 1110_13 and 1110_14 can be connected in parallel to form a seventh group. The electrode leads 1111P of the pouch cells 1110_15 and 1110_16 can be connected to the busbar 1140I_4 by methods such as welding. Pouch cells 1110_15 and 1110_16 can be connected in parallel to form an eighth group. The electrode leads 1111N of the pouch cells 1110_17 and 1110_18 can be connected to the busbar 1140I_4 by methods such as welding. Pouch cells 1110_17 and 1110_18 can be connected in parallel to form a ninth group. The electrode leads 1111P of the pocket cells 1110_19 and 1110_20 can be connected to the busbar 1140I_5 by methods such as soldering. Pocket cells 1110_19 and 1110_20 can be connected in parallel to form a tenth group. The electrode leads 1111N of the pocket cells 1110_21 and 1110_22 can be connected to the busbar 1140I_5 by methods such as soldering. Pocket cells 1110_21 and 1110_22 can be connected in parallel to form an eleventh group. The electrode leads 1111P of the pocket cells 1110_23 and 1110_24 can be connected to the busbar 1140P by methods such as soldering.Pocket cells 1110_23 and 1110_24 can be connected in parallel to form a twelfth group. Groups one through twelfth can be connected in series. The connection method for pocket cells 1110_1 through 1110_24 can be 2P-12S.

[0071] Figure 7 This is a rear-view perspective view of the busbar frame 1130.

[0072] refer to Figure 7 The busbar frame 1130 may include multiple slits S and multiple exhaust suppression sections VS. The exhaust suppression sections VS minimize the stress exerted on the short-side seals S_SS_N or S_SS_P of the bag-shaped cell 1110 due to the internal pressure of the bag-shaped cell 1110. The exhaust suppression sections VS suppress the exhaust of high-temperature gases, flames, or particles from the bag-shaped cell 1110 through the short-side seals S_SS_N or S_SS_P. The exhaust suppression sections also guide the exhaust of high-temperature gases, flames, or particles inside the bag-shaped cell 1110 through the long-side seals SP_LS. The exhaust suppression sections VS do not compress the short-side air pockets GP_SS_N or GP_SS_P of the bag-shaped cell 1110. Accordingly, the short-side air pockets GP_SS_N or GP_SS_P can contain the gas generated inside the bag-shaped cell 1110, thus fulfilling their original function as air pockets.

[0073] Each of the multiple slits S can extend in the Z direction. The multiple slits S can be spaced apart from each other in the Y direction. Each of the multiple exhaust suppression parts VS can protrude in the -X direction. The multiple exhaust suppression parts VS can be spaced apart from each other in the Y direction.

[0074] Refer again Figure 6The electrode leads 1111N or 1111P of the corresponding bag-shaped cells 1110 can pass through each of the multiple slits S. The electrode leads 1111N of bag-shaped cells 1110_1 and 1110_1 can pass through slit S_1. The electrode leads 1111P of bag-shaped cells 1110_3 and 1110_4 can pass through slit S_2. The electrode leads 1111N of bag-shaped cells 1110_5 and 1110_6 can pass through slit S_3. The electrode leads 1111P of bag-shaped cells 1110_7 and 1110_8 can pass through slit S_4. The electrode leads 1111N of bag-shaped cells 1110_9 and 1110_10 can pass through slit S_5. Electrode leads 1111P of pouch cells 1110_11 and 1110_12 can pass through slit S_6. Electrode leads 1111N of pouch cells 1110_13 and 1110_14 can pass through slit S_7. Electrode leads 1111P of pouch cells 1110_15 and 1110_16 can pass through slit S_8. Slit S_9 allows electrode leads 1111N of pouch cells 1110_17 and 1110_18 to pass through. Slit S_10 allows electrode leads 1111P of pouch cells 1110_19 and 1110_20 to pass through. Electrode leads 1111N of pouch cells 1110_21 and 1110_22 can pass through slit S_11. The electrode leads 1111P of the bag-shaped cells 1110_23 and 1110_24 can pass through the slit S_12.

[0075] Each of the multiple exhaust suppression units VS can guide the electrode lead 1111N or 1111P of the corresponding pouch cell 1110 through the corresponding slit in the multiple slits S. Exhaust suppression unit VS_1 can guide the electrode lead 1111N of pouch cell 1110_1 into slit S_1. Exhaust suppression unit VS_2 can guide the electrode leads 1111N of pouch cell 1110_1 and 1111N of pouch cell 1110_2 into slit S_1. Exhaust suppression unit VS_3 can guide the electrode lead 1111N of pouch cell 1110_2 into slit S_1 and guide the electrode lead 1111P of pouch cell 1110_3 into slit S_2. The exhaust suppression unit VS_4 guides the electrode leads 1111P of the pouch cell 1110_3 and the pouch cell 1110_4 into the slit S_2. The exhaust suppression unit VS_5 guides the electrode lead 1111P of the pouch cell 1110_4 into the slit S_2 and guides the electrode lead 1111N of the pouch cell 1110_5 into the slit S_3. The exhaust suppression unit VS_6 guides the electrode leads 1111N of the pouch cell 1110_5 and the pouch cell 1110_6 into the slit S_3. The exhaust suppression unit VS_7 guides the electrode lead 1111N of the pouch cell 1110_6 into the slit S_3 and guides the electrode lead 1111P of the pouch cell 1110_7 into the slit S_4. The exhaust suppression unit VS_8 guides the electrode leads 1111P of the pouch cell 1110_7 and 1111P of the pouch cell 1110_8 into the slit S_4. The exhaust suppression unit VS_9 guides the electrode lead 1111P of the pouch cell 1110_8 into the slit S_4 and guides the electrode lead 1111N of the pouch cell 1110_9 into the slit S_5. The exhaust suppression unit VS_10 guides the electrode leads 1111N of the pouch cell 1110_9 and 1111N of the pouch cell 1110_10 through the slit S_5. The exhaust suppression unit VS_11 guides the electrode lead 1111N of the pouch cell 1110_10 into the slit S_5 and the electrode lead 1111P of the pouch cell 1110_11 into the slit S_6. The exhaust suppression unit VS_12 guides the electrode leads 1111P of both the pouch cell 1110_11 and the pouch cell 1110_12 through the slit S_6. The exhaust suppression unit VS_13 guides the electrode lead 1111P of the pouch cell 1110_12 into the slit S_6 and the electrode lead 1111N of the pouch cell 1110_13 into the slit S_7.The exhaust suppression unit VS_14 guides the electrode leads 1111N of the pouch cell 1110_13 and 1111N of the pouch cell 1110_14 through the slit S_7. The exhaust suppression unit VS_15 guides the electrode lead 1111N of the pouch cell 1110_14 into the slit S_7 and guides the electrode lead 1111P of the pouch cell 1110_15 into the slit S_8. The exhaust suppression unit VS_16 guides the electrode leads 1111P of the pouch cell 1110_15 and 1111P of the pouch cell 1110_16 through the slit S_8. The exhaust suppression unit VS_17 guides the electrode lead 1111P of the pouch cell 1110_16 into the slit S_8, and guides the electrode lead 1111N of the pouch cell 1110_17 into the slit S_9. The exhaust suppression unit VS_18 guides the electrode leads 1111N of the pouch cell 1110_17 and 1111N of the pouch cell 1110_18 through the slit S_9. The exhaust suppression unit VS_19 guides the electrode lead 1111N of the pouch cell 1110_18 into the slit S_9, and guides the electrode lead 1111P of the pouch cell 1110_19 into the slit S_10. The exhaust suppression unit VS_20 guides the electrode leads 1111P of the pouch cell 1110_19 and 1111P of the pouch cell 1110_20 through the slit S_10. The exhaust suppression unit VS_21 guides the electrode lead 1111P of the pouch cell 1110_20 into the slit S_10 and guides the electrode lead 1111N of the pouch cell 1110_21 into the slit S_11. The exhaust suppression unit VS_22 guides the electrode leads 1111N of the pouch cell 1110_21 and 1111N of the pouch cell 1110_22 through the slit S_11. The exhaust suppression unit VS_23 guides the electrode lead 1111N of the pouch cell 1110_22 into the slit S_11, and guides the electrode lead 1111P of the pouch cell 1110_23 into the slit S_12. The exhaust suppression unit VS_24 guides the electrode leads 1111P of the pouch cell 1110_23 and the pouch cell 1110_24 through the slit S_12. The exhaust suppression unit VS_25 guides the electrode lead 1111P of the pouch cell 1110_24 into the slit S_12.

[0076] Each of the plurality of exhaust suppression sections VS can overlap in the Y direction with the short-side sealing section S_SS_N or S_SS_P of the corresponding pouch cell in the plurality of pouch cells 1110. Exhaust suppression section VS_1 can overlap in the Y direction with the short-side sealing section SP_SS_N of pouch cell 1110_1. Exhaust suppression section VS_2 can overlap in the Y direction with the short-side sealing sections SP_SS_N of pouch cell 1110_1 and SP_SS_N of pouch cell 1110_2. Exhaust suppression section VS_3 can overlap in the Y direction with the short-side sealing sections SP_SS_N of pouch cell 1110_2 and SP_SS_P of pouch cell 1110_3. Exhaust suppression section VS_4 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_3 and SP_SS_P of bag-shaped cell 1110_4 in the Y direction. Exhaust suppression section VS_5 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_4 and SP_SS_N of bag-shaped cell 1110_5 in the Y direction. Exhaust suppression section VS_6 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_5 and SP_SS_N of bag-shaped cell 1110_6 in the Y direction. Exhaust suppression section VS_7 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_6 and SP_SS_P of bag-shaped cell 1110_7 in the Y direction. Exhaust suppression section VS_8 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_7 and SP_SS_P of bag-shaped cell 1110_8 in the Y direction. Exhaust suppression section VS_9 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_8 and SP_SS_N of bag-shaped cell 1110_9 in the Y direction. Exhaust suppression section VS_10 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_9 and SP_SS_N of bag-shaped cell 1110_10 in the Y direction. Exhaust suppression section VS_11 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_10 and SP_SS_P of bag-shaped cell 1110_11 in the Y direction. The exhaust suppression section VS_12 can overlap with the short-side sealing sections SP_SS_P of the bag-shaped cell 1110_11 and SP_SS_P of the bag-shaped cell 1110_12 in the Y direction. The exhaust suppression section VS_13 can overlap with the short-side sealing sections SP_SS_P of the bag-shaped cell 1110_12 and SP_SS_N of the bag-shaped cell 1110_13 in the Y direction.Exhaust suppression section VS_14 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_13 and SP_SS_N of bag-shaped cell 1110_14 in the Y direction. Exhaust suppression section VS_15 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_14 and SP_SS_P of bag-shaped cell 1110_15 in the Y direction. Exhaust suppression section VS_16 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_15 and SP_SS_P of bag-shaped cell 1110_16 in the Y direction. Exhaust suppression section VS_17 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_16 and SP_SS_N of bag-shaped cell 1110_17 in the Y direction. Exhaust suppression section VS_18 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_17 and SP_SS_N of bag-shaped cell 1110_18 in the Y direction. Exhaust suppression section VS_19 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_18 and SP_SS_P of bag-shaped cell 1110_19 in the Y direction. Exhaust suppression section VS_20 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_19 and SP_SS_P of bag-shaped cell 1110_20 in the Y direction. Exhaust suppression section VS_21 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_20 and SP_SS_N of bag-shaped cell 1110_21 in the Y direction. Exhaust suppression section VS_22 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_21 and SP_SS_N of bag-shaped cell 1110_22 in the Y direction. Exhaust suppression section VS_23 can overlap with the short-side sealing sections SP_SS_N of bag-shaped cell 1110_22 and SP_SS_P of bag-shaped cell 1110_23 in the Y direction. Exhaust suppression section VS_24 can overlap with the short-side sealing sections SP_SS_P of bag-shaped cell 1110_23 and SP_SS_P of bag-shaped cell 1110_24 in the Y direction. Exhaust suppression section VS_25 can overlap with the short-side sealing section SP_SS_P of bag-shaped cell 1110_24 in the Y direction.

[0077] Each of the plurality of exhaust suppression sections VS can contact one surface of the short-side sealing portion S_SS_N or S_SS_P of the corresponding pouch cell in the plurality of pouch cells 1110. Exhaust suppression section VS_1 can contact one surface of the short-side sealing portion SP_SS_N of pouch cell 1110_1. Exhaust suppression section VS_2 can contact the opposite surface of the aforementioned short-side sealing portion SP_SS_N of pouch cell 1110_1. Exhaust suppression section VS_2 can contact one surface of the short-side sealing portion SP_SS_N of pouch cell 1110_2. Exhaust suppression section VS_3 can contact the opposite surface of the short-side sealing portion SP_SS_N of pouch cell 1110_2. Exhaust suppression section VS_3 can contact one surface of the short-side sealing portion SP_SS_P of pouch cell 1110_3. Exhaust suppression part VS_4 can contact the opposite surface of one of the aforementioned surfaces of the short-side sealing part SP_SS_P of the pouch cell 1110_3. Exhaust suppression part VS_4 can contact one surface of the short-side sealing part SP_SS_P of the pouch cell 1110_4. Exhaust suppression part VS_5 can contact the opposite surface of one of the aforementioned surfaces of the short-side sealing part SP_SS_P of the pouch cell 1110_4. Exhaust suppression part VS_5 can contact one surface of the short-side sealing part SP_SS_N of the pouch cell 1110_5. Exhaust suppression part VS_6 can contact the opposite surface of one of the aforementioned surfaces of the short-side sealing part SP_SS_N of the pouch cell 1110_5. Exhaust suppression part VS_6 can contact one surface of the short-side sealing part SP_SS_N of the pouch cell 1110_6. Exhaust suppression part VS_7 can contact the opposite surface of one of the aforementioned surfaces of the short-side sealing part SP_SS_N of the pouch cell 1110_6. Exhaust suppression part VS_7 can contact one surface of the short-side sealing part SP_SS_P of the pouch cell 1110_7. Exhaust suppression part VS_8 can contact the opposite surface of one of the aforementioned surfaces of the short-side sealing part SP_SS_P of the pouch cell 1110_7. Exhaust suppression part VS_8 can contact one surface of the short-side sealing part SP_SS_P of the pouch cell 1110_8. Exhaust suppression part VS_9 can contact the opposite surface of one of the aforementioned surfaces of the short-side sealing part SP_SS_P of the pouch cell 1110_8. Exhaust suppression part VS_9 can contact one surface of the short-side sealing part SP_SS_N of the pouch cell 1110_9. The vent suppression section VS_10 can contact the opposite surface of the short-side sealing section SP_SS_N of the pouch cell 1110_9. The vent suppression section VS_10 can contact one surface of the short-side sealing section SP_SS_N of the pouch cell 1110_10. The vent suppression section VS_11 can contact the opposite surface of the aforementioned one surface of the short-side sealing section SP_SS_N of the pouch cell 1110_10.Exhaust suppression section VS_11 can contact one surface of the short-side sealing section SP_SS_P of the pouch cell 1110_11. Exhaust suppression section VS_12 can contact the opposite surface of the short-side sealing section SP_SS_P of the pouch cell 1110_11. Exhaust suppression section VS_12 can contact one surface of the short-side sealing section SP_SS_P of the pouch cell 1110_12. Exhaust suppression section VS_13 can contact the opposite surface of the short-side sealing section SP_SS_P of the pouch cell 1110_12. Exhaust suppression section VS_13 can contact one surface of the short-side sealing section SP_SS_N of the pouch cell 1110_13. Exhaust suppression section VS_14 can contact the opposite surface of the short-side sealing section SP_SS_N of the pouch cell 1110_13. Exhaust suppression section VS_14 can contact one surface of the short-side sealing section SP_SS_N of the pouch cell 1110_14. Exhaust suppression section VS_15 can contact the opposite surface of the short-side sealing section SP_SS_N of the pouch cell 1110_14. Exhaust suppression section VS_15 can contact one surface of the short-side sealing section SP_SS_P of the pouch cell 1110_15. Exhaust suppression section VS_16 can contact the opposite surface of the short-side sealing section SP_SS_P of the pouch cell 1110_15. Exhaust suppression section VS_16 can contact one surface of the short-side sealing section SP_SS_P of the pouch cell 1110_16. Exhaust suppression section VS_17 can contact the opposite surface of the short-side sealing section SP_SS_P of the pouch cell 1110_16. Exhaust suppression section VS_17 can contact one surface of the short-side sealing section SP_SS_N of the pouch cell 1110_17. Exhaust suppression section VS_18 can contact the opposite surface of the short-side sealing section SP_SS_N of the pouch cell 1110_17. Exhaust suppression section VS_18 can contact one surface of the short-side sealing section SP_SS_N of the pouch cell 1110_18. Exhaust suppression section VS_19 can contact the opposite surface of the aforementioned short-side sealing section SP_SS_N of the pouch cell 1110_18. Exhaust suppression section VS_19 can contact one surface of the short-side sealing section SP_SS_P of the pouch cell 1110_19. Exhaust suppression section VS_20 can contact the opposite surface of the short-side sealing section SP_SS_P of the pouch cell 1110_19. The vent suppression section VS_20 can contact one surface of the short-side sealing section SP_SS_P of the pouch cell 1110_20. The vent suppression section VS_21 can contact the opposite surface of the short-side sealing section SP_SS_P of the pouch cell 1110_20. The vent suppression section VS_21 can contact one surface of the short-side sealing section SP_SS_N of the pouch cell 1110_21. The vent suppression section VS_22 can contact the opposite surface of the short-side sealing section SP_SS_N of the pouch cell 1110_21.Exhaust suppression part VS_22 can contact one surface of the short-side sealing part SP_SS_N of the pouch cell 1110_22. Exhaust suppression part VS_23 can contact the opposite surface of the short-side sealing part SP_SS_N of the pouch cell 1110_22. Exhaust suppression part VS_23 can contact one surface of the short-side sealing part SP_SS_P of the pouch cell 1110_23. Exhaust suppression part VS_24 can contact the opposite surface of the short-side sealing part SP_SS_P of the pouch cell 1110_23. Exhaust suppression part VS_24 can contact one surface of the short-side sealing part SP_SS_P of the pouch cell 1110_24. Exhaust suppression part VS_25 can contact the opposite surface of the aforementioned one surface of the short-side sealing part SP_SS_P of the pouch cell 1110_24.

[0078] Each of the multiple exhaust suppression sections VS is designed not to overlap with the short-side air pocket section GP_SS_N or GP_SS_P of the corresponding bag-shaped cell in the multiple bag-shaped cells 1110 in the Y direction. Exhaust suppression section VS_1 is designed not to overlap with the short-side air pocket section GP_SS_N of bag-shaped cell 1110_1 in the Y direction. Exhaust suppression section VS_2 is designed not to overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_1 and GP_SS_N of bag-shaped cell 1110_2 in the Y direction. Exhaust suppression section VS_3 is designed not to overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_2 and GP_SS_P of bag-shaped cell 1110_3 in the Y direction. Exhaust suppression section VS_4 is designed to not overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_3 and GP_SS_P of bag-shaped cell 1110_4 in the Y direction. Exhaust suppression section VS_5 is designed to not overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_4 and GP_SS_N of bag-shaped cell 1110_5 in the Y direction. Exhaust suppression section VS_6 is designed to not overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_5 and GP_SS_N of bag-shaped cell 1110_6 in the Y direction. Exhaust suppression section VS_7 is designed to not overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_6 and GP_SS_P of bag-shaped cell 1110_7 in the Y direction. Exhaust suppression section VS_8 is designed to not overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_7 and GP_SS_P of bag-shaped cell 1110_8 in the Y direction. Exhaust suppression section VS_9 is designed to not overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_8 and GP_SS_N of bag-shaped cell 1110_9 in the Y direction. Exhaust suppression section VS_10 is designed to not overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_9 and GP_SS_N of bag-shaped cell 1110_10 in the Y direction. Exhaust suppression section VS_11 is designed to not overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_10 and GP_SS_P of bag-shaped cell 1110_11 in the Y direction. The exhaust suppression section VS_12 is designed to not overlap with the short-side air pocket section GP_SS_P of the bag-shaped cell 1110_11 and the short-side air pocket section GP_SS_P of the bag-shaped cell 1110_12 in the Y direction. The exhaust suppression section VS_13 is designed to not overlap with the short-side air pocket section GP_SS_P of the bag-shaped cell 1110_12 and the short-side air pocket section GP_SS_N of the bag-shaped cell 1110_13 in the Y direction.Exhaust suppression unit VS_14 is designed to not overlap with the short-side air pockets GP_SS_N of bag-shaped cell 1110_13 and GP_SS_N of bag-shaped cell 1110_14 in the Y direction. Exhaust suppression unit VS_15 is designed to not overlap with the short-side air pockets GP_SS_N of bag-shaped cell 1110_14 and GP_SS_P of bag-shaped cell 1110_15 in the Y direction. Exhaust suppression unit VS_16 is designed to not overlap with the short-side air pockets GP_SS_P of bag-shaped cell 1110_15 and GP_SS_P of bag-shaped cell 1110_16 in the Y direction. Exhaust suppression unit VS_17 is designed to not overlap with the short-side air pockets GP_SS_P of bag-shaped cell 1110_16 and GP_SS_N of bag-shaped cell 1110_17 in the Y direction. Exhaust suppression section VS_18 is designed to not overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_17 and GP_SS_N of bag-shaped cell 1110_18 in the Y direction. Exhaust suppression section VS_19 is designed to not overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_18 and GP_SS_P of bag-shaped cell 1110_19 in the Y direction. Exhaust suppression section VS_20 is designed to not overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_19 and GP_SS_P of bag-shaped cell 1110_20 in the Y direction. Exhaust suppression section VS_21 is designed to not overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_20 and GP_SS_N of bag-shaped cell 1110_21 in the Y direction. Exhaust suppression unit VS_22 is designed to not overlap with the short-side air pockets GP_SS_N of bag-shaped cell 1110_21 and GP_SS_N of bag-shaped cell 1110_22 in the Y direction. Exhaust suppression unit VS_23 is designed to not overlap with the short-side air pockets GP_SS_N of bag-shaped cell 1110_22 and GP_SS_P of bag-shaped cell 1110_23 in the Y direction. Exhaust suppression unit VS_24 is designed to not overlap with the short-side air pockets GP_SS_P of bag-shaped cell 1110_23 and GP_SS_P of bag-shaped cell 1110_24 in the Y direction. Exhaust suppression unit VS_25 is designed to not overlap with the short-side air pockets GP_SS_P of bag-shaped cell 1110_24 in the Y direction.

[0079] (Second Implementation)

[0080] Figure 8 This is a view showing a battery module 1100 according to another embodiment.

[0081] refer to Figure 8Each of the multiple exhaust suppression sections VS can overlap in the Y direction with the short-side air pocket section GP_SS_N or GP_SS_P of the corresponding bag-shaped cell in the multiple bag-shaped cells 1110. Exhaust suppression section VS_1 can overlap in the Y direction with the short-side air pocket section GP_SS_N of bag-shaped cell 1110_1. Exhaust suppression section VS_2 can overlap in the Y direction with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_1 and GP_SS_N of bag-shaped cell 1110_2. Exhaust suppression section VS_3 can overlap in the Y direction with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_2 and GP_SS_P of bag-shaped cell 1110_3. Exhaust suppression unit VS_4 can overlap with the short-side air pockets GP_SS_P of bag-shaped cell 1110_3 and GP_SS_P of bag-shaped cell 1110_4 in the Y direction. Exhaust suppression unit VS_5 can overlap with the short-side air pockets GP_SS_P of bag-shaped cell 1110_4 and GP_SS_N of bag-shaped cell 1110_5 in the Y direction. Exhaust suppression unit VS_6 can overlap with the short-side air pockets GP_SS_N of bag-shaped cell 1110_5 and GP_SS_N of bag-shaped cell 1110_6 in the Y direction. Exhaust suppression unit VS_7 can overlap with the short-side air pockets GP_SS_N of bag-shaped cell 1110_6 and GP_SS_P of bag-shaped cell 1110_7 in the Y direction. Exhaust suppression section VS_8 can overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_7 and GP_SS_P of bag-shaped cell 1110_8 in the Y direction. Exhaust suppression section VS_9 can overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_8 and GP_SS_N of bag-shaped cell 1110_9 in the Y direction. Exhaust suppression section VS_10 can overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_9 and GP_SS_N of bag-shaped cell 1110_10 in the Y direction. Exhaust suppression section VS_11 can overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_10 and GP_SS_P of bag-shaped cell 1110_11 in the Y direction. The exhaust suppression section VS_12 can overlap with the short-side air pocket section GP_SS_P of the bag-shaped cell 1110_11 and the short-side air pocket section GP_SS_P of the bag-shaped cell 1110_12 in the Y direction. The exhaust suppression section VS_13 can overlap with the short-side air pocket section GP_SS_P of the bag-shaped cell 1110_12 and the short-side air pocket section GP_SS_N of the bag-shaped cell 1110_13 in the Y direction.Exhaust suppression section VS_14 can overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_13 and GP_SS_N of bag-shaped cell 1110_14 in the Y direction. Exhaust suppression section VS_15 can overlap with the short-side air pocket sections GP_SS_N of bag-shaped cell 1110_14 and GP_SS_P of bag-shaped cell 1110_15 in the Y direction. Exhaust suppression section VS_16 can overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_15 and GP_SS_P of bag-shaped cell 1110_16 in the Y direction. Exhaust suppression section VS_17 can overlap with the short-side air pocket sections GP_SS_P of bag-shaped cell 1110_16 and GP_SS_N of bag-shaped cell 1110_17 in the Y direction. Exhaust suppression section VS_18 can overlap with the short-side air pocket section GP_SS_N of bag-shaped cell 1110_17 and the short-side air pocket section GP_SS_N of bag-shaped cell 1110_18 in the Y direction. Exhaust suppression section VS_19 can overlap with the short-side air pocket section GP_SS_N of bag-shaped cell 1110_18 and the short-side air pocket section GP_SS_P of bag-shaped cell 1110_19 in the Y direction. Exhaust suppression section VS_20 can overlap with the short-side air pocket section GP_SS_P of bag-shaped cell 1110_19 and the short-side air pocket section GP_SS_P of bag-shaped cell 1110_20 in the Y direction. Exhaust suppression section VS_21 can overlap with the short-side air pocket section GP_SS_P of bag-shaped cell 1110_20 and the short-side air pocket section GP_SS_N of bag-shaped cell 1110_21 in the Y direction. Exhaust suppression section VS_22 can overlap with the short-side air pocket section GP_SS_N of bag-shaped cell 1110_21 and the short-side air pocket section GP_SS_N of bag-shaped cell 1110_22 in the Y direction. Exhaust suppression section VS_23 can overlap with the short-side air pocket section GP_SS_N of bag-shaped cell 1110_22 and the short-side air pocket section GP_SS_P of bag-shaped cell 1110_23 in the Y direction. Exhaust suppression section VS_24 can overlap with the short-side air pocket section GP_SS_P of bag-shaped cell 1110_23 and the short-side air pocket section GP_SS_P of bag-shaped cell 1110_24 in the Y direction. Exhaust suppression section VS_25 can overlap with the short-side air pocket section GP_SS_P of bag-shaped cell 1110_24 in the Y direction.

[0082] Each of the multiple exhaust suppression sections VS may not contact the short-side air pocket section GP_SS_N or GP_SS_P of the corresponding bag-shaped cell in the multiple bag-shaped cells 1100. Exhaust suppression section VS_1 may not contact the short-side air pocket section GP_SS_N of bag-shaped cell 1100_1. Exhaust suppression section VS_2 may not contact the short-side air pocket sections GP_SS_N of bag-shaped cell 1100_1 and GP_SS_N of bag-shaped cell 1100_2. Exhaust suppression section VS_3 may not contact the short-side air pocket section GP_SS_N of bag-shaped cell 1100_2 and GP_SS_P of bag-shaped cell 1100_3. Exhaust suppression section VS_4 may not contact the short-side air pocket section GP_SS_P of bag-shaped cell 1100_3 and GP_SS_P of bag-shaped cell 1100_4. Exhaust suppression unit VS_5 may not contact the short-side air pockets GP_SS_P of bag-shaped cell 1100_4 and GP_SS_N of bag-shaped cell 1100_5. Exhaust suppression unit VS_6 may not contact the short-side air pockets GP_SS_N of bag-shaped cell 1100_5 and GP_SS_N of bag-shaped cell 1100_6. Exhaust suppression unit VS_7 may not contact the short-side air pockets GP_SS_N of bag-shaped cell 1100_6 and GP_SS_P of bag-shaped cell 1100_7. Exhaust suppression unit VS_8 may not contact the short-side air pockets GP_SS_P of bag-shaped cell 1100_7 and GP_SS_P of bag-shaped cell 1100_8. Exhaust suppression unit VS_9 may not contact the short-side air pockets GP_SS_P of bag-shaped cell 1100_8 and GP_SS_N of bag-shaped cell 1100_9. Exhaust suppression unit VS_10 may not contact the short-side air pockets GP_SS_N of bag-shaped cell 1100_9 and GP_SS_N of bag-shaped cell 1100_10. Exhaust suppression unit VS_11 may not contact the short-side air pockets GP_SS_N of bag-shaped cell 1100_10 and GP_SS_P of bag-shaped cell 1100_11. Exhaust suppression unit VS_12 may not contact the short-side air pockets GP_SS_P of bag-shaped cell 1100_11 and GP_SS_P of bag-shaped cell 1100_12. The exhaust suppression unit VS_13 may not contact the short-side air pockets GP_SS_P of the bag-shaped cell 1100_12 or the short-side air pockets GP_SS_N of the bag-shaped cell 1100_13. The exhaust suppression unit VS_14 may not contact the short-side air pockets GP_SS_N of the bag-shaped cell 1100_13 or the short-side air pockets GP_SS_N of the bag-shaped cell 1100_14.Exhaust suppression unit VS_15 may not contact the short-side air pocket portion GP_SS_N of bag-shaped cell 1100_14 and the short-side air pocket portion GP_SS_P of bag-shaped cell 1100_15. Exhaust suppression unit VS_16 may not contact the short-side air pocket portion GP_SS_P of bag-shaped cell 1100_15 and the short-side air pocket portion GP_SS_P of bag-shaped cell 1100_16. Exhaust suppression unit VS_17 may not contact the short-side air pocket portion GP_SS_P of bag-shaped cell 1100_16 and the short-side air pocket portion GP_SS_N of bag-shaped cell 1100_17. Exhaust suppression unit VS_18 may not contact the short-side air pocket portion GP_SS_N of bag-shaped cell 1100_17 and the short-side air pocket portion GP_SS_N of bag-shaped cell 1100_18. Exhaust suppression unit VS_19 may not contact the short-side air pocket portion GP_SS_N of bag-shaped cell 1100_18 or the short-side air pocket portion GP_SS_P of bag-shaped cell 1100_19. Exhaust suppression unit VS_20 may not contact the short-side air pocket portion GP_SS_P of bag-shaped cell 1100_19 or the short-side air pocket portion GP_SS_P of bag-shaped cell 1100_20. Exhaust suppression unit VS_21 may not contact the short-side air pocket portion GP_SS_P of bag-shaped cell 1100_20 or the short-side air pocket portion GP_SS_N of bag-shaped cell 1100_21. Exhaust suppression unit VS_22 may not contact the short-side air pocket portion GP_SS_N of bag-shaped cell 1100_21 or the short-side air pocket portion GP_SS_N of bag-shaped cell 1100_22. Exhaust suppression section VS_23 may not contact the short-side air pocket section GP_SS_N of bag-shaped cell 1100_22 or the short-side air pocket section GP_SS_P of bag-shaped cell 1100_23. Exhaust suppression section VS_24 may not contact the short-side air pocket section GP_SS_P of bag-shaped cell 1100_23 or the short-side air pocket section GP_SS_P of bag-shaped cell 1100_24. Exhaust suppression section VS_25 may not contact the short-side air pocket section GP_SS_P of bag-shaped cell 1100_24.

[0083] (Third implementation method)

[0084] Figure 9 This is a view showing a battery module 1100 according to another embodiment.

[0085] refer to Figure 9 Only one electrode lead 1111 can pass through each of the multiple slits S.

[0086] The exhaust suppression part VS_1 can contact one surface of the short-side sealing part S_SS of the pouch cell 1110. The exhaust suppression part VS_2 can contact the opposite surface of the aforementioned short-side sealing part S_SS of the pouch cell 1110.

[0087] (Fourth Implementation)

[0088] Figure 10 This is a view showing a battery pack 1000 according to some embodiments.

[0089] refer to Figure 10 The battery pack 1000 may include multiple battery modules 1100, a battery pack housing 1200, a first partition wall 1300, a second partition wall 1400, a third partition wall 1500, a venting device 1600, and a cover. The battery pack 1000 may be the final form of a battery system installed in a mobility device.

[0090] Each of the multiple battery modules 1100 may be the same as those described above.

[0091] exist Figure 10 In this example, the number of battery modules 1100 is six, but this is merely an example. The number of battery modules 1100 can be determined based on the magnitude of the current and / or voltage required by the battery pack 1000. Figure 10 In this embodiment, the battery modules 1100 are arranged in a two-row, three-column configuration, but this is merely an example. The arrangement of the battery modules 1100 can be determined based on the number of battery modules 1100 and the required X and Y lengths of the battery pack 1000. This disclosure only describes an implementation with six battery modules 1100 arranged in a two-row, three-column configuration. Those skilled in the art can readily conceive of other implementations with different numbers and arrangements of battery modules 1100 based on this disclosure.

[0092] The battery pack housing 1200 may include a base plate 1210 and side walls 1221, 1222, 1223, and 1224. The base plate 1210 may support multiple battery modules 1100, side walls 1221, 1222, 1223, and 1224, a first partition wall 1300, a second partition wall 1400, a third partition wall 1500, and electrical components. The base plate 1210 may be substantially perpendicular to the Z-direction. The base plate 1210 may be provided by an extrusion process. The extrusion direction of the base plate 1210 may be the Y-direction. The base plate 1210 may include multiple cooling channels. The multiple cooling channels may be formed by an extrusion process. The multiple cooling channels may be parallel to the Y-direction. The multiple cooling channels may be spaced apart from each other in the X-direction.

[0093] Side walls 1221, 1222, 1223, and 1224 can be positioned around the perimeter of the base plate 1210. Side walls 1221, 1222, 1223, and 1224 can enclose multiple battery modules 1100, the first partition wall 1300, the second partition wall 1400, the third partition wall 1500, and electrical components. Side walls 1221 and 1223 can be approximately perpendicular to the Y-direction. Side walls 1222 and 1224 can be approximately perpendicular to the X-direction.

[0094] The venting device 1600 can be installed on one or more sidewalls 1221, 1222, 1223, and 1224. The venting device 1600 can be configured to provide a path for the high-temperature gases, flames, and particles inside the battery pack 1000 to be discharged to the outside of the battery pack 1000 in the event of a thermal runaway event within the battery pack 1000. The venting device 1600 can also be configured to prevent dust, moisture, water, etc., from entering the battery pack 1000.

[0095] The first partition wall 1300 may extend in the X direction between side walls 1222 and 1224. The first partition wall 1300 may be substantially perpendicular to the Y direction. The first partition wall 1300 may be located between electrical components and multiple battery modules 1100.

[0096] Electrical components may be located between sidewall 1221 and first partition wall 1300. These components may include a battery management system (BMS), a power relay assembly (PRA), etc. The BMS may be configured to monitor the status of multiple pouch cells 1110, such as voltage, current, and temperature; balance the voltage and capacity among the multiple pouch cells 1110; and control the charging and discharging of the multiple pouch cells 1110. The PRA may be configured to connect or disconnect high-voltage circuits based on signals from the BMS, thereby supplying high-voltage current from the multiple battery modules 1100 to external loads such as motors or inverters, or disconnecting high-voltage current from the multiple battery modules 1100. The PRA may be configured to mitigate voltage surges and prevent damage to external loads such as motors or inverters.

[0097] The second partition wall 1400 can be located between multiple battery modules 1100. When the multiple battery modules 1100 are arranged in M ​​rows and N columns (where M and N are integers greater than or equal to 2), the columns can be separated by the second partition wall 1400. The second partition wall 1400 can extend in the X direction between the side wall 1222 and the third partition wall 1500 or between the side wall 1224 and the third partition wall 1500. The second partition wall 1400 can be approximately perpendicular to the Y direction.

[0098] The third partition wall 1500 can be located between multiple battery modules 1100. When the multiple battery modules 1100 are arranged in M ​​rows and N columns (where M and N are integers greater than or equal to 2), the rows can be separated by the third partition wall 1500. The third partition wall 1500 can extend in the Y direction between the first partition wall 1300 and the side wall 1223. The third partition wall 1500 can be approximately perpendicular to the X direction.

[0099] The cover plate can be attached to the side walls 1221, 1222, 1223, and 1224 via cover plate fasteners. The cover plate can cover multiple battery modules 1100, the first partition wall 1300, the second partition wall 1400, the third partition wall 1500, and electrical components. The cover plate can be approximately perpendicular to the Z-direction.

[0100] The present disclosure has been described in more detail above with reference to the accompanying drawings and embodiments. However, the structures shown in the drawings or the embodiments described in this specification are merely one embodiment of the present disclosure and do not represent all the technical ideas of the present disclosure. It should be understood that at the time of filing this application, there may be various equivalent examples and modifications that can replace them.

[0101] [Explanation of reference numerals in the attached figures]

[0102] 1000: Battery pack

[0103] 1100: Battery Module

[0104] 1110: Bag-shaped battery cell

[0105] C: Central Department

[0106] SP: Sealing section

[0107] GP: Airbag section

[0108] F: Folding section

[0109] 1111: Electrode lead

[0110] 1120: Module Framework

[0111] 1130: Busbar Framework

[0112] S: Slit

[0113] VS: Exhaust suppression section

[0114] 1140: Busbar

[0115] 1150: Insulating cover

[0116] 1160: End plate

[0117] 1200: Battery pack casing

[0118] 1300: First partition wall

[0119] 1400: Second partition wall

[0120] 1500: Third partition wall

[0121] 1600: Exhaust system

Claims

1. A battery module, the battery module comprising: A plurality of pouch cells are arranged in a first direction, wherein each of the plurality of pouch cells includes an electrode lead protruding in a second direction perpendicular to the first direction; A module frame that accommodates the plurality of pouch cells and is open in the second direction; A busbar electrically connected to multiple electrode leads of the plurality of pouch cells; and A busbar frame supports the busbar and includes multiple slits and multiple exhaust suppression sections, wherein... Each of the plurality of pouch-shaped cells includes a central portion containing the electrode assembly, an air pocket portion at the edge of the central portion, and a sealing portion at the edge of the air pocket portion, wherein... The electrode lead of a corresponding one of the plurality of pouch cells passes through each of the plurality of slits, and The plurality of exhaust suppression portions overlap with a portion of the sealing portion of a corresponding one of the plurality of pouch cells in the first direction.

2. The battery module according to claim 1, wherein, Each of the plurality of pouch-shaped cells has a rectangular shape. The sealing part includes a short-side sealing part and a long-side sealing part, and The plurality of exhaust suppression portions overlap with the short-side sealing portion of a corresponding one of the plurality of bag-shaped cells in the first direction.

3. The battery module according to claim 2, wherein, The plurality of pouch-shaped battery cells include a first battery cell, the first battery cell including a first electrode lead and a first short-side sealing portion. The plurality of slits includes a first slit. The plurality of exhaust suppression sections include a first exhaust suppression section and a second exhaust suppression section, which guide the first electrode lead to the first slit. The first exhaust suppression part contacts one surface of the first short-side sealing part, and The second exhaust suppression portion contacts the opposite surface of the first short-side sealing portion.

4. The battery module according to claim 2, wherein, The plurality of pouch-shaped battery cells include a first battery cell and a second battery cell. The first battery cell includes a first electrode lead and a first short-side sealing portion, and the second battery cell includes a second electrode lead and a second short-side sealing portion. The plurality of slits includes a first slit. The plurality of exhaust suppression sections include a first exhaust suppression section, a second exhaust suppression section, and a third exhaust suppression section. The first exhaust suppression section guides the first electrode lead to the first slit, the second exhaust suppression section guides the second electrode lead to the first slit, and the third exhaust suppression section guides both the first and second electrode leads to the first slit and is located between the first and second exhaust suppression sections. The first exhaust suppression part contacts one surface of the first short-side sealing part. The second exhaust suppression part contacts one surface of the second short-side sealing part, and The third exhaust suppression part is in contact with the opposite surface of one of the surfaces of the first short side sealing part and the opposite surface of one of the surfaces of the second short side sealing part.

5. The battery module according to claim 2, wherein, The air bag section includes a short-side air bag section and a long-side air bag section, and The plurality of exhaust suppression portions do not overlap with the short-side air bag portion of the corresponding one of the plurality of bag-shaped cells in the first direction.

6. The battery module according to claim 2, wherein, The air bag section includes a short-side air bag section and a long-side air bag section, and Each of the plurality of exhaust suppression sections overlaps with the short-side air pocket section of the corresponding one of the plurality of bag-shaped cells in the first direction.

7. The battery module according to claim 6, wherein, Each of the plurality of exhaust suppression sections does not contact the short-side air bag section of the corresponding one of the plurality of bag-shaped cells.

8. The battery module according to claim 1, wherein, The module frame includes a top plate, and the top plate includes multiple vent holes.

9. A battery pack, the battery pack comprising: A battery pack housing, the battery pack housing including a base plate and side walls; Multiple battery modules on the battery pack housing; as well as A cover plate, which covers the plurality of battery modules and is connected to the battery pack housing, wherein... Each of the plurality of battery modules includes: A plurality of pouch cells are arranged in a first direction, wherein each of the plurality of pouch cells includes an electrode lead protruding in a second direction perpendicular to the first direction; A module frame that accommodates the plurality of pouch cells and is open in the second direction; A busbar electrically connected to multiple electrode leads of the plurality of pouch cells; and A busbar frame supports the busbar and includes multiple slits and multiple exhaust suppression sections, wherein... Each of the plurality of pouch-shaped cells includes a central portion containing the electrode assembly, an air pocket portion at the edge of the central portion, and a sealing portion at the edge of the air pocket portion. The electrode lead of a corresponding one of the plurality of pouch cells passes through each of the plurality of slits, and The plurality of exhaust suppression portions overlap with a portion of the sealing portion of a corresponding one of the plurality of pouch cells in the first direction.

10. The battery pack according to claim 9, wherein, The module frame includes a top plate, and the top plate includes multiple vent holes.

11. The battery pack according to claim 9, further comprising: At least one exhaust device, said at least one exhaust device being disposed on at least one of the sidewalls.

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