Battery module and battery pack comprising same

Abstract

A battery module according to some embodiments comprises: a plurality of pouch cells arranged in a first direction, the respective pouch cells including an electrode lead protruding in a second direction perpendicular to the first direction; a module frame, which accommodates the plurality of pouch cells and is open in the second direction; bus bars electrically connected to the plurality of electrode leads of the plurality of pouch cells; and a bus bar frame, which is positioned between the bus bars and the plurality of pouch cells and includes a plurality of slits and a plurality of venting suppression portions, wherein the respective pouch cells include: a central portion in which an electrode assembly is positioned; a gas pocket portion at the edge of the central portion; and a sealing portion at the edge of the gas pocket portion, the electrode lead of the corresponding respective pouch cell passes through respective slits, and the plurality of venting suppression portions can overlap a portion of the sealing portion of the corresponding respective pouch cell in the first direction. Therefore, the battery module according to some embodiments can suppress venting in the direction in which the electrode leads are positioned and does not press the gas pocket portion of the pouch cell, thereby enabling the gas pocket portion of the pouch cell to perform original functions.

Description

Battery module and battery pack including the same

[0001] The present disclosure relates to a battery module and a battery pack including the same.

[0002] The present disclosure claims the benefit of priority based on Korean Patent Application No. 10-2024-0157654 filed November 8, 2024, and all contents of Korean Patent Application No. 10-2024-0157654 are incorporated by reference into the present disclosure.

[0003]

[0004] Rechargeable batteries can be used repeatedly for extended periods through recharging. They are used in various fields, including mobility, portable electronic devices, and Energy Storage Systems (ESS). In particular, the demand for rechargeable batteries for mobility is increasing further in order to reduce dependence on fossil fuels and decrease carbon emissions. However, concerns regarding the safety of rechargeable batteries remain a significant challenge that needs to be addressed.

[0005] In the case of mobility, multiple battery cells are used to ensure performance capabilities such as power output and driving range. Generally, multiple battery cells form a battery module, and a battery pack composed of multiple modules is installed in a vehicle. In this configuration, the battery cells constituting a module are located adjacent to each other, and the battery modules constituting the battery pack are also positioned close to one another. Consequently, if a thermal runaway event occurs in some battery cells, thermal propagation to adjacent cells can easily take place. If such thermal transfer occurs in a chain reaction, it can lead to a major explosion or fire.

[0006] In the event of a thermal runaway event, high-temperature gases, flames, and particles inside the battery cell may vent in random directions. To prevent major explosions or fires, technology capable of controlling the direction of venting is required.

[0007] The problem that the present disclosure aims to solve is to provide a battery module capable of controlling the venting direction.

[0008] Some embodiments of the present disclosure capable of solving the above problems are as follows.

[0009] A battery module according to some embodiments is,

[0010] A plurality of pouch cells 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;

[0011] A module frame accommodating the plurality of pouch cells and open in the second direction;

[0012] Busbars electrically connected to a plurality of electrode leads of the plurality of pouch cells; and

[0013] A busbar frame that supports the above busbars and includes a plurality of slits and a plurality of venting suppression parts;

[0014] Includes,

[0015] Each of the above plurality of pouch cells includes a center portion where an electrode assembly is located, a gas pocket portion at the edge of the center portion, and a sealing portion at the edge of the gas pocket portion.

[0016] The electrode lead of a corresponding one among the plurality of pouch cells passes through each of the plurality of slits, and

[0017] The above plurality of venting inhibition portions may overlap with a part of the sealing portion of a corresponding one of the plurality of pouch cells in the first direction.

[0018]

[0019] In some embodiments, the shape of each of the plurality of pouch cells is rectangular, the sealing portion includes a short side sealing portion and a long side sealing portion, and the plurality of venting suppressing portions may overlap with the short side sealing portion of a corresponding one of the plurality of pouch cells in the first direction.

[0020] In some embodiments, the plurality of battery cells includes a first battery cell comprising a first electrode lead and a first short-side sealing portion, the plurality of slits include a first slit, and the plurality of venting suppressors include a first venting suppressor and a second venting suppressor that guide the first electrode lead to the first slit, the first venting suppressor is in contact with one side of the first short-side sealing portion, and the second venting suppressor may be in contact with the opposite side of the one side of the first short-side sealing portion.

[0021] In some embodiments, the plurality of battery cells include a first battery cell including a first electrode lead and a first short-side sealing portion and a second battery cell including a second electrode lead and a second short-side sealing portion, the plurality of slits include a first slit, and the plurality of venting suppressors include a first venting suppressor that guides the first electrode lead to the first slit, a second venting suppressor that guides the second electrode lead to the first slit, and a third venting suppressor that guides the first electrode lead and the second electrode lead to the first slit and is located between the first venting suppressor and the second venting suppressor, wherein the first venting suppressor is in contact with one side of the first short-side sealing portion, the second venting suppressor is in contact with one side of the second short-side sealing portion, and the third venting suppressor may be in contact with the opposite side of the one side of the first short-side sealing portion and the opposite side of the one side of the second short-side sealing portion.

[0022] In some embodiments, the gas pocket portion includes a short-side gas pocket portion and a long-side gas pocket portion, and the plurality of venting suppression portions may not overlap with the short-side gas pocket portion of a corresponding one of the plurality of pouch cells in the first direction.

[0023] In some embodiments, the gas pocket portion includes a short-side gas pocket portion and a long-side gas pocket portion, and each of the plurality of venting suppression portions may overlap with the short-side gas pocket portion of a corresponding one of the plurality of pouch cells in the first direction.

[0024] In some embodiments, each of the plurality of venting suppression portions may not come into contact with the short-side gas pocket portion of the corresponding of the plurality of pouch cells.

[0025] In some embodiments, the module frame may include a top plate having a plurality of vent holes.

[0026]

[0027] A battery pack according to some embodiments is,

[0028] Pack housing including a base plate and side walls;

[0029] A plurality of battery modules on the above-mentioned pack housing; and

[0030] A lid that covers the plurality of battery modules and is coupled to the pack housing;

[0031] Includes,

[0032] Each of the above plurality of battery modules is,

[0033] A plurality of pouch cells 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;

[0034] A module frame accommodating the plurality of pouch cells and open in the second direction;

[0035] Busbars short-circuited to a plurality of electrode leads of the plurality of pouch cells; and

[0036] A busbar frame that supports the above busbars and includes a plurality of slits and a plurality of venting suppression parts;

[0037] Includes,

[0038] Each of the above plurality of pouch cells includes a center portion where an electrode assembly is located, a gas pocket portion at the edge of the center portion, and a sealing portion at the edge of the gas pocket portion.

[0039] The electrode lead of a corresponding one among the plurality of pouch cells passes through each of the plurality of slits, and

[0040] The above plurality of venting inhibition portions may overlap with a part of the sealing portion of a corresponding one of the plurality of pouch cells in the first direction.

[0041]

[0042] In some embodiments, the module frame may include a top plate having a plurality of vent holes.

[0043] A battery pack according to some embodiments may further include at least one exhaust device disposed on at least one of the side walls.

[0044] A battery module according to some embodiments of the present disclosure can suppress venting in the direction where the electrode leads are located and can prevent compression of the gas pocket of the pouch cell, thereby allowing the gas pocket of the pouch cell to perform its original function.

[0045] The effects of some embodiments of the present disclosure are not limited to those mentioned above, and other unmentioned effects can be clearly derived and understood by a person skilled in the art to which the present disclosure pertains from the following description. That is, unintended effects resulting from the implementation of some embodiments of the present disclosure can also be clearly derived and understood by a person skilled in the art to which the present disclosure pertains.

[0046] FIG. 1 is a perspective view of a battery module according to some embodiments.

[0047] FIG. 2 is a partially exploded view of a battery module according to some embodiments.

[0048] Figure 3 is a diagram showing a pouch cell.

[0049] FIG. 4 is a front view for further explaining a plurality of pouch cells, a busbar frame, and busbars in more detail.

[0050] FIG. 5 is a perspective view for further explaining multiple pouch cells, a busbar frame, and busbars in more detail.

[0051] Figure 6 is a part of a cross-sectional view taken along the cutting line VI-VI' of Figure 5.

[0052] Fig. 7 is a rear perspective view of the busbar frame.

[0053] FIG. 8 is a drawing showing a battery module according to some other embodiments.

[0054] FIG. 9 is a drawing showing a battery module according to some other embodiments.

[0055] FIG. 10 is a drawing showing a battery pack according to some embodiments.

[0056] Terms or words used in this disclosure should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning consistent with the technical concept of this disclosure, based on the principle that the inventor can appropriately define the meaning of terms or words to best describe his own invention.

[0057] In this disclosure, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this disclosure, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Furthermore, when a part such as a layer, film, region, or plate is described as being "on" another part, this includes not only cases where it is "immediately above" the other part, but also cases where there is another part in between. Conversely, when a part such as a layer, film, region, or plate is described as being "under" another part, this includes not only cases where it is "immediately below" the other part, but also cases where there is another part in between.

[0058] It should be understood that the embodiments and drawings are merely examples of the present disclosure and do not represent all of the technical ideas of the present disclosure, and that various equivalents and modifications that can replace them may exist.

[0059] In describing the present disclosure, if it is determined that a detailed description of a known configuration or function could obscure the essence of the present disclosure, such detailed description is omitted.

[0060] The drawings are provided to more fully explain the present disclosure to a person skilled in the art; therefore, the shapes, sizes, and number of components in the drawings may be exaggerated, omitted, or schematically depicted for clearer explanation. The shape, size, proportion, and number of each component in the drawings do not entirely reflect the actual shape, size, proportion, and number of each component.

[0061] In this disclosure, for convenience of explanation, a three-dimensional Cartesian coordinate system is used to describe the positions of the components, the shapes of the components, and the relationships between the components. The X-axis, Y-axis, and Z-axis are shown in FIGS. 1 through 10. In this specification, "X direction" means a direction parallel to the X-axis. In this specification, "+X direction" means the same direction as the arrow of the X-axis shown in FIGS. 1 through 10. In this specification, "-X direction" means the opposite direction to the arrow of the X-axis shown in FIGS. 1 through 10. In this specification, "Y direction" means a direction parallel to the Y-axis. In this specification, "+Y direction" means the same direction as the arrow of the Y-axis shown in FIGS. 1 through 10. In this specification, "-Y direction" means the opposite direction to the arrow of the Y-axis shown in FIGS. 1 through 10. In this specification, "Z direction" means a direction parallel to the Z-axis. In this specification, "+Z direction" means the same direction as the arrow direction of the Z-axis shown in FIGS. 1 to 10. In this specification, "-Z direction" means the opposite direction to the arrow direction of the Z-axis shown in FIGS. 1 to 10.

[0062] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0063] (1st embodiment)

[0064] FIG. 1 is a perspective view of a battery module (1100) according to some embodiments.

[0065] FIG. 2 is a partially exploded view of a battery module (1100) according to some embodiments.

[0066] Referring to FIGS. 1 and 2, the battery module (1100) may include a plurality of pouch cells (1110), a module frame (1120), a busbar frame (1130), busbars (1140P, 1140I, 1140N), an insulating cover (1150), and an end plate (1160).

[0067] Each of the plurality of pouch cells (1110) may include an electrode assembly, electrode tabs, electrode leads (1111N, 1111P), an electrolyte, and a pouch film.

[0068] The electrode assembly may include an anode, a cathode, and a separator. The anode may include an anode active material layer and an anode current collector. The cathode may include a cathode active material layer and a cathode current collector. The electrode assembly may be of a jelly roll type or a stack type. The jelly roll type may have a structure in which the anode, cathode, and separator are wound. The stack type may have a structure in which a first electrode unit comprising a first anode, a first cathode, and a first separator, and a second electrode unit comprising a second anode, a second cathode, and a second separator are stacked with a third separator in between. The electrolyte may be of a liquid type or a gel type.

[0069] The electrode tabs may include positive tabs and negative tabs. The positive tabs may be coupled to the positive current collector. The positive tabs may be welded to the positive current collector. The negative tabs may be coupled to the negative current collector. The negative tabs may be welded to the negative current collector.

[0070] The electrode lead (1111N) may be coupled to the negative tabs. The electrode lead (1111N) may be welded to the negative tabs. The electrode lead (1111P) may be coupled to the positive tabs. The electrode lead (1111P) may be welded to the positive tabs. The electrode lead (1111N) and the electrode lead (1111P) may protrude in opposite directions or in the same direction. The present disclosure describes only embodiments in which the electrode lead (1111N) and the electrode lead (1111P) protrude in opposite directions. A person skilled in the art to which the present disclosure pertains will be able to easily arrive at embodiments in which the electrode lead (1111N) and the electrode lead (1111P) protrude in the same direction based on the present disclosure.

[0071] Figure 3 is a drawing showing a pouch cell (1110).

[0072] Referring to FIG. 3, the pouch cell (1110) may have a roughly rectangular shape. The pouch cell (1110) may include a center portion (C), a gas pocket portion (GP), a sealing portion (SP), and a folding portion (F).

[0073] An electrode assembly may be located in the center portion (C). The center portion (C) may be a portion protruding in the Y direction of the pouch cell (1110). The length in the Y direction of the center portion (C) may be greater than the length in the Y direction of the gas pocket portion (GP). The length in the Y direction of the center portion (C) may be greater than the length in the Y direction of the sealing portion (SP). The length in the Y direction of the center portion (C) may be greater than the length in the Y direction of the folding portion (F).

[0074] The gas pocket portion (GP) may be located at the edge of the center portion (C). The gas pocket portion (GP) may not be sealed. If the pouch cell (1110) is charged and discharged multiple times or if the temperature of the pouch cell (1110) rises above a certain level, gas may be generated inside the pouch cell (1110) even if a thermal runaway event does not occur in the pouch cell (1110). The gas pocket portion (GP) can contain the gas generated inside the pouch cell (1110). The gas pocket portion (GP) containing the gas generated inside the pouch cell (1110) may swell.

[0075] The gas pocket section (GP) may include short-side gas pocket sections (GP_SS_N, GP_SS_P) and long-side gas pocket sections (GP_LS). The short-side gas pocket sections (GP_SS_N, GP_SS_P) may be spaced apart from each other in the X direction with the center section (C) in between. The short-side gas pocket section (GP_SS_N) may be connected to the center section (C) in the +X direction. The short-side gas pocket section (GP_SS_P) may be connected to the center section (C) in the -X direction. The long-side gas pocket section (GP_LS) may be connected to the center section (C) in the +Z direction. The end of the long-side gas pocket section (GP_LS) in the +X direction may be connected to the end of the short-side gas pocket section (GP_SS_N) in the +Z direction. The end of the long-side gas pocket section (GP_LS) in the -X direction may be connected to the end of the short-side gas pocket section (GP_SS_P) in the +Z direction.

[0076] The sealing portion (SP) may be located at the edge of the gas pocket portion (GP). The sealing portion (SP) may be a part where the pouch film of the pouch cell (1110) is bonded by heat fusion or the like. As described above, even if gas is generated inside the pouch cell (1110) and the internal pressure of the pouch cell (1110) increases, the sealing state of the pouch cell (1110) can be maintained by the sealing portion (SP). However, if an accident such as a thermal runaway event occurs in the pouch cell (1110) and the internal pressure of the pouch cell (1110) becomes excessively high, the sealing of the sealing portion (SP) may be released, and the sealing state of the pouch cell (1110) may be released.

[0077] The sealing portion (SP) may include short side sealing portions (SP_SS_N, SP_SS_P) and a long side sealing portion (SP_LS). The short side sealing portions (SP_SS_N, SP_SS_P) may be spaced apart from each other in the X direction with the center portion (C) and the short side gas pocket portions (GP_SS_N, GP_SS_P) in between. The short side sealing portion (SP_SS_N) may be connected to the short side gas pocket portion (GP_SS_N) in the +X direction. The short side sealing portion (SP_SS_P) may be connected to the short side gas pocket portion (GP_SS_P) in the -X direction. The long side sealing portion (SP_LS) may be connected to the long side gas 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 in the -X direction of the long side sealing portion (SP_LS) can be connected to the end in the +Z direction of the short side sealing portion (SP_SS_P).

[0078] The folding portion (F) may be located at the edge of the center portion (C). The folding portion (F) may not be sealed. The folding portion (F) may be connected to the center portion (C) in the -Z direction. The folding portion (F) may be formed during the process of placing an electrode assembly and an electrode tab on a single pouch film and folding the pouch film so that the pouch film wraps around the electrode assembly and the electrode tab. When two pouch films are used (for example, placing an electrode assembly and an electrode tab on one pouch film, covering the electrode assembly and electrode tab with another pouch film, and then bonding the two pouch films by heat fusion, etc.), a sealing portion (SP) may be located at the location of the folding portion (F).

[0079] The electrode leads (1111N, 1111P) may protrude in the X direction. In FIG. 3, the electrode lead (1111N) protrudes in the +X direction and the electrode lead (1111P) protrudes in the -X direction, but this is merely illustrative. Conversely, the electrode lead (1111N) may protrude in the -X direction and the electrode lead (1111P) may protrude in the +X direction.

[0080] The short-side gas pocket portion (GP_SS_N) may be located between the short-side sealing portion (SP_SS_N) and the center portion (C). The short-side gas pocket portion (GP_SS_P) may be located between the short-side sealing portion (SP_SS_P) and the center portion (C). The short-side sealing portion (SP_SS_N) may be located between the electrode lead (1111N) and the short-side gas pocket portion (GP_SS_N). The short-side sealing portion (SP_SS_P) may be located between the electrode lead (1111P) and the short-side gas pocket portion (GP_SS_P).

[0081] The module frame (1120) can accommodate a plurality of pouch cells (1110). The module frame (1120) can be opened in the X direction. The module frame (1120) may include a top plate (1121) containing a plurality of vent holes (VH). The module frame (1120) may be formed by joining the U frame and the top plate (1121) by a method such as welding. The module frame (1120) may be an integral monoframe, and the top plate (1121) may be part of the monoframe.

[0082] Referring again to FIG. 2, the busbar frame (1130) can cover the opening of the module frame (1120) in the +X direction. The busbar frame (1130) can cover a plurality of pouch cells (1110) in the +X direction. The busbar frame (1130) can support bus bars (1140P, 1140I, 1140N). The busbar frame (1130) can be located between the bus bars (1140P, 1140I, 1140N) and the electrode assemblies of the plurality of pouch cells (1110). The material of the busbar frame (1130) may be a material with high thermal insulation and fire resistance.

[0083] A plurality of pouch cells (1110) can be connected in parallel and / or in series through bus bars (1140P, 1140I, 1140N). A portion of the bus bars (1140P, 1140N) may be exposed to the outside of the battery module (1000). An electrical connection between the battery module (1000) and an external system may be made through a portion of the bus bars (1140P, 1140N). Bus bar (1140I) may be located between the bus bars (1140P, 1140N). Bus bar (1140I) may have a roughly O-shape.

[0084] The insulating cover (1150) can cover the busbar frame (1130) and the busbars (1140P, 1140I, 1140N) in the +X direction. The insulating cover (1150) may include holes and supports. Through the holes, a portion of the busbars (1140P, 1140N) may be exposed to the outside of the battery module (1000). The supports may support a portion of the busbars (1140P, 1140N). The material of the insulating cover may be a material with high thermal insulation and fire resistance.

[0085] The end plate (1160) can cover the insulating cover (1150) in the +X direction. The end plate (1160) may include holes. Through the holes, a portion of the bus bars (1140P, 1140N) may be exposed to the outside of the battery module (1000). The material of the end plate (1160) may be a material with high rigidity and heat resistance.

[0086] FIG. 4 is a front view for further illustrating a plurality of pouch cells (1110), a busbar frame (1130), and busbars (1140P, 1140I, 1140N).

[0087] FIG. 5 is a perspective view for further illustrating a plurality of pouch cells (1110), a busbar frame (1130), and busbars (1140P, 1140I, 1140N).

[0088] Figure 6 is a part of a cross-sectional view taken along the cutting line VI-VI' of Figure 5.

[0089] Referring to FIGS. 4 through 6, a plurality of pouch cells (1110) may be arranged in the Y direction. The plurality of pouch cells (1110) may be composed of a plurality of banks. Each of the plurality of banks may be composed of one or more pouch cells (1110) connected in parallel with one another. The plurality of banks may be connected in series with one another. When the plurality of pouch cells (1110) are composed of n banks and each of the n banks is composed of m pouch cells, the connection method of the plurality of pouch cells (1110) may be referred to as m parallel-n series.

[0090] The number of multiple pouch cells (1110), the number of multiple banks, the number of pouch cells constituting each of the multiple banks, and the connection method of the multiple pouch cells (1110) may be determined according to the magnitude of the current and voltage required for the battery module (1000). Only one embodiment is described in this disclosure. A person skilled in the art to which this disclosure belongs will be able to easily arrive at other embodiments based on this disclosure.

[0091] The electrode leads (1111N) of the pouch cells (1110_1, 1110_2, 1110_5, 1110_6, 1110_9, 1110_10, 1110_13, 1110_14, 1110_17, 1110_18, 1110_21, 1110_22) can protrude in the +X direction. The electrode leads (1111P) of the pouch cells (1110_3, 1110_4, 1110_7, 1110_8, 1110_11, 1110_12, 1110_15, 1110_16, 1110_19, 1110_20, 1110_23, 1110_24) can protrude in the +X direction.

[0092] The electrode leads (1111N) of the pouch cells (1110_1, 1110_2) can be joined to the bus bar (1140N) by means such as welding. The pouch cells (1110_1, 1110_2) can be connected in parallel to form a first bank. The electrode leads (1111P) of the pouch cells (1110_3, 1110_4) can be joined to the bus bar (1140I_1) by means such as welding. The pouch cells (1110_3, 1110_4) can be connected in parallel to form a second bank. The electrode leads (1111N) of the pouch cells (1110_5, 1110_6) can be joined to the bus bar (1140I_1) by means such as welding. Pouch cells (1110_5, 1110_6) can be connected in parallel to form a third bank. The electrode leads (1111P) of pouch cells (1110_7, 1110_8) can be connected to a bus bar (1140I_2) by means such as welding. Pouch cells (1110_7, 1110_8) can be connected in parallel to form a fourth bank. The electrode leads (1111N) of pouch cells (1110_9, 1110_10) can be connected to a bus bar (1140I_2) by means such as welding. Pouch cells (1110_9, 1110_10) can be connected in parallel to form a fifth bank. The electrode leads (1111P) of the pouch cells (1110_11, 1110_12) can be joined to the bus bar (1140I_3) by means such as welding. The pouch cells (1110_11, 1110_12) can be connected in parallel to form a sixth bank. The electrode leads (1111N) of the pouch cells (1110_13, 1110_14) can be joined to the bus bar (1140I_3) by means such as welding. The pouch cells (1110_13, 1110_14) can be connected in parallel to form a seventh bank. The electrode leads (1111P) of the pouch cells (1110_15, 1110_16) can be joined to the bus bar (1140I_4) by means such as welding.Pouch cells (1110_15, 1110_16) can be connected in parallel to form an 8th bank. The electrode leads (1111N) of pouch cells (1110_17, 1110_18) can be connected to a bus bar (1140I_4) by means such as welding. Pouch cells (1110_17, 1110_18) can be connected in parallel to form a 9th bank. The electrode leads (1111P) of pouch cells (1110_19, 1110_20) can be connected to a bus bar (1140I_5) by means such as welding. Pouch cells (1110_19, 1110_20) can be connected in parallel to form a 10th bank. The electrode leads (1111N) of the pouch cells (1110_21, 1110_22) can be joined to the bus bar (1140I_5) by means such as welding. The pouch cells (1110_21, 1110_22) can be connected in parallel to form a 11th bank. The electrode leads (1111P) of the pouch cells (1110_23, 1110_24) can be joined to the bus bar (1140P) by means such as welding. The pouch cells (1110_23, 1110_24) can be connected in parallel to form a 12th bank. The 1st to 12th banks can be connected in series. The connection method of the pouch cells (1110_1~24) can be 2P-12S.

[0093] FIG. 7 is a rear perspective view of the busbar frame (1130).

[0094] Referring to FIG. 7, the busbar frame (1130) may include a plurality of slits (S) and a plurality of venting suppression portions (VS). The venting suppression portions (VS) can minimize the stress received by the short-side sealing portion (S_SS_N or S_SS_P) of the pouch cell (1110) due to the internal pressure of the pouch cell (1110). The venting suppression part (VS) can suppress the venting of high-temperature gas, flame, particles, etc. inside the pouch cell (1110) to the short side sealing part (S_SS_N or S_SS_P) of the pouch cell (1110) when an accident such as a thermal runaway event occurs in the pouch cell (1110) and the internal pressure of the pouch cell (1110) becomes excessively high, and can induce the venting of high-temperature gas, flame, particles, etc. inside the pouch cell (1110) to the long side sealing part (SP_LS) of the pouch cell (1110). The venting suppression part (VS) can not compress the short side gas pocket part (GP_SS_N or GP_SS_P) of the pouch cell (1110). Accordingly, the short-sided gas pocket (GP_SS_N or GP_SS_P) can accommodate gas generated inside the pouch cell (1110) and perform its original function as a gas pocket.

[0095] Each of the plurality of slits (S) may extend in the Z direction. The plurality of slits (S) may be spaced apart from each other in the Y direction. Each of the plurality of venting suppression parts (VS) may protrude in the -X direction. The plurality of venting suppression parts (VS) may be spaced apart from each other in the Y direction.

[0096] Referring again to FIG. 6, the electrode lead (1111N or 1111P) of a corresponding of the plurality of pouch cells (1110) can pass through each of the plurality of slits (S). The electrode lead (1111N) of the pouch cells (1110_1, 1110_1) can pass through the slit (S_1). The electrode lead (1111P) of the pouch cells (1110_3, 1110_4) can pass through the slit (S_2). The electrode lead (1111N) of the pouch cells (1110_5, 1110_6) can pass through the slit (S_3). The electrode lead (1111P) of the pouch cells (1110_7, 1110_8) can pass through the slit (S_4). The electrode leads (1111N) of the pouch cells (1110_9, 1110_10) can pass through the slit (S_5). The electrode leads (1111P) of the pouch cells (1110_11, 1110_12) can pass through the slit (S_6). The electrode leads (1111N) of the pouch cells (1110_13, 1110_14) can pass through the slit (S_7). The electrode leads (1111P) of the pouch cells (1110_15, 1110_16) can pass through the slit (S_8). The electrode leads (1111N) of the pouch cells (1110_17, 1110_18) can pass through the slit (S_9). The electrode leads (1111P) of the pouch cells (1110_19, 1110_20) can pass through the slit (S_10). The electrode leads (1111N) of the pouch cells (1110_21, 1110_22) can pass through the slit (S_11). The electrode leads (1111P) of the pouch cells (1110_23, 1110_24) can pass through the slit (S_12).

[0097] Each of the plurality of venting suppression parts (VS) can guide the electrode lead (1111N or 1111P) of a corresponding one of the plurality of pouch cells (1110) to a corresponding one of the plurality of slits (S). The venting suppression part (VS_1) can guide the electrode lead (1111N) of the pouch cell (1110_1) to the slit (S_1). The venting suppression part (VS_2) can guide the electrode lead (1111N) of the pouch cell (1110_1) and the electrode lead (1111N) of the pouch cell (1110_2) to the slit (S_1). The venting suppression part (VS_3) can guide the electrode lead (1111N) of the pouch cell (1110_2) to the slit (S_1) and the electrode lead (1111P) of the pouch cell (1110_3) to the slit (S_2). The venting suppression part (VS_4) can guide the electrode lead (1111P) of the pouch cell (1110_3) and the electrode lead (1111P) of the pouch cell (1110_4) to the slit (S_2). The venting suppression part (VS_5) can guide the electrode lead (1111P) of the pouch cell (1110_4) to the slit (S_2) and the electrode lead (1111N) of the pouch cell (1110_5) to the slit (S_3). The venting suppression part (VS_6) can guide the electrode lead (1111N) of the pouch cell (1110_5) and the electrode lead (1111N) of the pouch cell (1110_6) to the slit (S_3). The venting suppression part (VS_7) can guide the electrode lead (1111N) of the pouch cell (1110_6) to the slit (S_3) and the electrode lead (1111P) of the pouch cell (1110_7) to the slit (S_4). The venting suppression part (VS_8) can guide the electrode lead (1111P) of the pouch cell (1110_7) and the electrode lead (1111P) of the pouch cell (1110_8) to the slit (S_4). The venting suppression part (VS_9) can guide the electrode lead (1111P) of the pouch cell (1110_8) to the slit (S_4) and the electrode lead (1111N) of the pouch cell (1110_9) to the slit (S_5).The venting suppression part (VS_10) can guide the electrode lead (1111N) of the pouch cell (1110_9) and the electrode lead (1111N) of the pouch cell (1110_10) to the slit (S_5). The venting suppression part (VS_11) can guide the electrode lead (1111N) of the pouch cell (1110_10) to the slit (S_5) and the electrode lead (1111P) of the pouch cell (1110_11) to the slit (S_6). The venting suppression part (VS_12) can guide the electrode lead (1111P) of the pouch cell (1110_11) and the electrode lead (1111P) of the pouch cell (1110_12) to the slit (S_6). The venting suppression part (VS_13) can guide the electrode lead (1111P) of the pouch cell (1110_12) to the slit (S_6) and the electrode lead (1111N) of the pouch cell (1110_13) to the slit (S_7). The venting suppression part (VS_14) can guide the electrode lead (1111N) of the pouch cell (1110_13) and the electrode lead (1111N) of the pouch cell (1110_14) to the slit (S_7). The venting suppression part (VS_15) can guide the electrode lead (1111N) of the pouch cell (1110_14) to the slit (S_7) and the electrode lead (1111P) of the pouch cell (1110_15) to the slit (S_8). The venting suppression part (VS_16) can guide the electrode lead (1111P) of the pouch cell (1110_15) and the electrode lead (1111P) of the pouch cell (1110_16) to the slit (S_8). The venting suppression part (VS_17) can guide the electrode lead (1111P) of the pouch cell (1110_16) to the slit (S_8) and the electrode lead (1111N) of the pouch cell (1110_17) to the slit (S_9). The venting suppression part (VS_18) can guide the electrode lead (1111N) of the pouch cell (1110_17) and the electrode lead (1111N) of the pouch cell (1110_18) to the slit (S_9).The venting suppression part (VS_19) can guide the electrode lead (1111N) of the pouch cell (1110_18) to the slit (S_9) and the electrode lead (1111P) of the pouch cell (1110_19) to the slit (S_10). The venting suppression part (VS_20) can guide the electrode lead (1111P) of the pouch cell (1110_19) and the electrode lead (1111P) of the pouch cell (1110_20) to the slit (S_10). The venting suppression part (VS_21) can guide the electrode lead (1111P) of the pouch cell (1110_20) to the slit (S_10) and the electrode lead (1111N) of the pouch cell (1110_21) to the slit (S_11). The venting suppression part (VS_22) can guide the electrode lead (1111N) of the pouch cell (1110_21) and the electrode lead (1111N) of the pouch cell (1110_22) to the slit (S_11). The venting suppression part (VS_23) can guide the electrode lead (1111N) of the pouch cell (1110_22) to the slit (S_11) and the electrode lead (1111P) of the pouch cell (1110_23) to the slit (S_12). The venting suppression part (VS_24) can guide the electrode lead (1111P) of the pouch cell (1110_23) and the electrode lead (1111P) of the pouch cell (1110_24) to the slit (S_12). The venting suppression part (VS_25) can guide the electrode lead (1111P) of the pouch cell (1110_24) to the slit (S_12).

[0098] Each of the plurality of venting suppression portions (VS) may overlap in the Y direction with the short side sealing portion (S_SS_N or S_SS_P) of the corresponding of the plurality of pouch cells (1110). The venting suppression portion (VS_1) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_1). The venting suppression portion (VS_2) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_1) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_2). The venting suppression portion (VS_3) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_2) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_3). The venting suppression portion (VS_4) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_3) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_4). The venting suppression portion (VS_5) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_4) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_5). The venting suppression portion (VS_6) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_5) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_6). The venting suppression portion (VS_7) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_6) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_7). The venting suppression portion (VS_8) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_7) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_8). The venting suppression portion (VS_9) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_8) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_9).The venting suppression portion (VS_10) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_9) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_10). The venting suppression portion (VS_11) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_10) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_11). The venting suppression portion (VS_12) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_11) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_12). The venting suppression portion (VS_13) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_12) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_13). The venting suppression portion (VS_14) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_13) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_14). The venting suppression portion (VS_15) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_14) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_15). The venting suppression portion (VS_16) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_15) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_16). The venting suppression portion (VS_17) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_16) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_17). The venting suppression portion (VS_18) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_17) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_18). The venting inhibition portion (VS_19) can overlap with the short side sealing portion (SP_SS_N) of the pouch cell (1110_18) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_19) in the Y direction.The venting suppression portion (VS_20) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_19) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_20). The venting suppression portion (VS_21) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_20) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_21). The venting suppression portion (VS_22) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_21) and the short side sealing portion (SP_SS_N) of the pouch cell (1110_22). The venting suppression portion (VS_23) may overlap in the Y direction with the short side sealing portion (SP_SS_N) of the pouch cell (1110_22) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_23). The venting suppression portion (VS_24) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_23) and the short side sealing portion (SP_SS_P) of the pouch cell (1110_24). The venting suppression portion (VS_25) may overlap in the Y direction with the short side sealing portion (SP_SS_P) of the pouch cell (1110_24).

[0099] Each of the plurality of venting suppression portions (VS) may come into contact with one side of the short side sealing portion (S_SS_N or S_SS_P) of the corresponding of the plurality of pouch cells (1110). The venting suppression portion (VS_1) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_1). The venting suppression portion (VS_2) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_1). The venting suppression portion (VS_2) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_2). The venting suppression portion (VS_3) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_2). The venting suppression portion (VS_3) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_3). The venting suppression portion (VS_4) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_3). The venting suppression portion (VS_4) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_4). The venting suppression portion (VS_5) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_4). The venting suppression portion (VS_5) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_5). The venting suppression portion (VS_6) may come into contact with the opposite side of the aforementioned one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_5). The venting suppression portion (VS_6) may come into contact with the one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_6). The venting suppression portion (VS_7) may come into contact with the opposite side of the aforementioned one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_6). The venting suppression portion (VS_7) may come into contact with the one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_7). The venting suppression portion (VS_8) may come into contact with the opposite side of the aforementioned one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_7).The venting suppression portion (VS_8) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_8). The venting suppression portion (VS_9) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_8). The venting suppression portion (VS_9) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_9). The venting suppression portion (VS_10) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_9). The venting suppression portion (VS_10) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_10). The venting suppression portion (VS_11) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_10). The venting suppression portion (VS_11) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_11). The venting suppression portion (VS_12) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_11). The venting suppression portion (VS_12) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_12). The venting suppression portion (VS_13) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_12). The venting suppression portion (VS_13) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_13). The venting suppression portion (VS_14) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_13). The venting suppression portion (VS_14) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_14). The venting suppression portion (VS_15) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_14). The venting suppression portion (VS_15) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_15).The venting suppression portion (VS_16) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_15). The venting suppression portion (VS_16) may come into contact with the one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_16). The venting suppression portion (VS_17) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_16). The venting suppression portion (VS_17) may come into contact with the one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_17). The venting suppression portion (VS_18) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_17). The venting suppression portion (VS_18) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_18). The venting suppression portion (VS_19) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_18). The venting suppression portion (VS_19) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_19). The venting suppression portion (VS_20) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_19). The venting suppression portion (VS_20) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_20). The venting suppression portion (VS_21) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_20). The venting suppression portion (VS_21) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_21). The venting suppression portion (VS_22) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_21). The venting suppression portion (VS_22) may come into contact with one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_22). The venting suppression portion (VS_23) may come into contact with the opposite side of the one side of the short side sealing portion (SP_SS_N) of the pouch cell (1110_22).The venting suppression portion (VS_23) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_23). The venting suppression portion (VS_24) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_23). The venting suppression portion (VS_24) may come into contact with one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_24). The venting suppression portion (VS_25) may come into contact with the opposite side of the said one side of the short side sealing portion (SP_SS_P) of the pouch cell (1110_24).

[0100] Each of the plurality of venting suppression portions (VS) may not overlap in the Y direction with the short-side gas pocket portion (GP_SS_N or GP_SS_P) of the corresponding of the plurality of pouch cells (1110). The venting suppression portion (VS_1) may not overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_1). The venting suppression portion (VS_2) may not overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_1) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_2). The venting suppression portion (VS_3) may not overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_2) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_3). The venting suppression portion (VS_4) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_3) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_4) in the Y direction. The venting suppression portion (VS_5) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_4) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_5) in the Y direction. The venting suppression portion (VS_6) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_5) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_6) in the Y direction. The venting suppression portion (VS_7) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_6) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_7) in the Y direction. The venting suppression portion (VS_8) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_7) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_8) in the Y direction.The venting suppression portion (VS_9) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_8) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_9) in the Y direction. The venting suppression portion (VS_10) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_9) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_10) in the Y direction. The venting suppression portion (VS_11) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_10) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_11) in the Y direction. The venting suppression portion (VS_12) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_11) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_12) in the Y direction. The venting suppression portion (VS_13) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_12) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_13) in the Y direction. The venting suppression portion (VS_14) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_13) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_14) in the Y direction. The venting suppression portion (VS_15) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_14) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_15) in the Y direction. The venting suppression portion (VS_16) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_15) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_16) in the Y direction. The venting suppression portion (VS_17) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_16) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_17) in the Y direction.The venting suppression portion (VS_18) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_17) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_18) in the Y direction. The venting suppression portion (VS_19) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_18) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_19) in the Y direction. The venting suppression portion (VS_20) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_19) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_20) in the Y direction. The venting suppression portion (VS_21) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_20) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_21) in the Y direction. The venting suppression portion (VS_22) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_21) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_22) in the Y direction. The venting suppression portion (VS_23) may not overlap with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_22) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_23) in the Y direction. The venting suppression portion (VS_24) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_23) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_24) in the Y direction. The venting suppression portion (VS_25) may not overlap with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_24) in the Y direction.

[0101] (2nd Example)

[0102] FIG. 8 is a drawing showing a battery module (1100) according to some other embodiments.

[0103] Referring to FIG. 8, each of the plurality of venting suppression portions (VS) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N or GP_SS_P) of the corresponding of the plurality of pouch cells (1110). The venting suppression portion (VS_1) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_1). The venting suppression portion (VS_2) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_1) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_2). The venting suppression portion (VS_3) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_2) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_3). The venting suppression portion (VS_4) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_3) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_4). The venting suppression portion (VS_5) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_4) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_5). The venting suppression portion (VS_6) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_5) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_6). The venting suppression portion (VS_7) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_6) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_7). The venting suppression portion (VS_8) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_7) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_8). The venting suppression portion (VS_9) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_8) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_9).The venting suppression portion (VS_10) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_9) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_10). The venting suppression portion (VS_11) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_10) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_11). The venting suppression portion (VS_12) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_11) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_12). The venting suppression portion (VS_13) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_12) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_13). The venting suppression portion (VS_14) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_13) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_14). The venting suppression portion (VS_15) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_14) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_15). The venting suppression portion (VS_16) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_15) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_16). The venting suppression portion (VS_17) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_16) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_17). The venting suppression portion (VS_18) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_17) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_18).The venting suppression portion (VS_19) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_18) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_19). The venting suppression portion (VS_20) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_19) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_20). The venting suppression portion (VS_21) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_20) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_21). The venting suppression portion (VS_22) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_21) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_22). The venting suppression portion (VS_23) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1110_22) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_23). The venting suppression portion (VS_24) may overlap in the Y direction with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_23) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1110_24). The venting inhibition portion (VS_25) can overlap with the short-sided gas pocket portion (GP_SS_P) of the pouch cell (1110_24) in the Y direction.

[0104] Each of the plurality of venting suppression portions (VS) may not come into contact with the short-side gas pocket portion (GP_SS_N or GP_SS_P) of the corresponding of the plurality of pouch cells (1110). The venting suppression portion (VS_1) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_1). The venting suppression portion (VS_2) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_1) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_2). The venting suppression portion (VS_3) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_2) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_3). The venting suppression portion (VS_4) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_3) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_4). The venting suppression portion (VS_5) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_4) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_5). The venting suppression portion (VS_6) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_5) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_6). The venting suppression portion (VS_7) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_6) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_7). The venting suppression portion (VS_8) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_7) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_8). The venting suppression portion (VS_9) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_8) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_9).The venting suppression portion (VS_10) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_9) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_10). The venting suppression portion (VS_11) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_10) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_11). The venting suppression portion (VS_12) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_11) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_12). The venting suppression portion (VS_13) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_12) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_13). The venting suppression portion (VS_14) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_13) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_14). The venting suppression portion (VS_15) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_14) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_15). The venting suppression portion (VS_16) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_15) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_16). The venting suppression portion (VS_17) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_16) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_17). The venting suppression portion (VS_18) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_17) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_18).The venting suppression portion (VS_19) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_18) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_19). The venting suppression portion (VS_20) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_19) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_20). The venting suppression portion (VS_21) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_20) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_21). The venting suppression portion (VS_22) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_21) and the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_22). The venting suppression portion (VS_23) may not come into contact with the short-side gas pocket portion (GP_SS_N) of the pouch cell (1100_22) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_23). The venting suppression portion (VS_24) may not come into contact with the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_23) and the short-side gas pocket portion (GP_SS_P) of the pouch cell (1100_24). The venting inhibition portion (VS_25) may not come into contact with the short-sided gas pocket portion (GP_SS_P) of the pouch cell (1100_24).

[0105]

[0106] (3rd Example)

[0107] FIG. 9 is a drawing showing a battery module (1100) according to some other embodiments.

[0108] Referring to FIG. 9, only one electrode lead (1111) can pass through each of the plurality of slits (S).

[0109] The venting suppression portion (VS_1) may be in contact with one side of the short side sealing portion (S_SS) of the pouch cell (1110). The venting suppression portion (VS_2) may be in contact with the opposite side of the said one side of the short side sealing portion (S_SS) of the pouch cell (1110).

[0110]

[0111] (Fourth Example)

[0112] FIG. 10 is a drawing showing a battery pack (1000) according to some embodiments.

[0113] Referring to FIG. 10, the battery pack (1000) may include a plurality of battery modules (1100), a pack housing (1200), a first bulkhead (1300), second bulkheads (1400), a third bulkhead (1500), exhaust devices (1600), and a lid. The battery pack (1000) may be the final form of a battery system mounted on a mobility.

[0114] Each of the multiple battery modules (1100) may be the same as the one described above.

[0115] In FIG. 10, the number of multiple battery modules (1100) is 6, but this is merely illustrative. The number of multiple battery modules (1100) may be determined according to the magnitude of the current and / or voltage required for the battery pack (1000). In FIG. 10, the arrangement of multiple battery modules (1100) is 2 rows and 3 columns, but this is merely illustrative. The arrangement of multiple battery modules (1100) may be determined according to the number of multiple battery modules (1100) and the length in the X and Y directions of the required battery pack (1000). The present disclosure describes only an embodiment in which the number of multiple battery modules (1100) is 6 and the arrangement is 2 rows and 3 columns. A person skilled in the art will be able to easily arrive at other embodiments in which the number and arrangement of multiple battery modules (1100) are based on the present disclosure.

[0116] The pack housing (1200) may include a base plate (1210) and side walls (1221, 1222, 1223, 1224). The base plate (1210) may support a plurality of battery modules (1100), side walls (1221, 1222, 1223, 1224), a first bulkhead (1300), second bulkheads (1400), a third bulkhead (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 a plurality of cooling channels. The plurality of cooling channels may be formed by an extrusion process. The plurality of cooling channels may be parallel to the Y direction. The plurality of cooling channels may be spaced apart from each other in the X direction.

[0117] Side walls (1221, 1222, 1223, 1224) may be located around the base plate (1210). Side walls (1221, 1222, 1223, 1224) may surround a plurality of battery modules (1100), a first bulkhead (1300), second bulkheads (1400), a third bulkhead (1500), and electrical components. Side walls (1221, 1223) may be substantially perpendicular to the Y direction. Side walls (1222, 1224) may be substantially perpendicular to the X direction.

[0118] An exhaust device (1600) may be installed on one or more of the side walls (1221, 1222, 1223, 1224). The exhaust device (1600) may be configured to provide a path through which high-temperature gases, flames, particles, etc. inside the battery pack (1000) can be discharged to the outside of the battery pack (1000) in the event that a thermal runaway event occurs inside the battery pack (1000). The exhaust device (1600) may be configured to prevent dust, moisture, water, etc. from outside the battery pack (1000) from entering the battery pack (1000).

[0119] The first bulkhead (1300) may extend in the X direction between the side walls (1222, 1224). The first bulkhead (1300) may be substantially perpendicular to the Y direction. The first bulkhead (1300) may be located between the electrical components and the plurality of battery modules (1100).

[0120] Electrical components may be located between the side wall (1221) and the first partition (1300). Electrical components may include a battery management system (BMS), a power relay assembly (PRA), etc. The BMS may be configured to monitor the voltage, current, temperature, etc. of a plurality of battery cells (1110), to uniformly balance the voltage, capacity, etc. between the plurality of battery cells (1110), and to control the charging and discharging of the plurality of battery cells (1110). The PRA may be configured to connect or disconnect a high-voltage circuit according to a signal from the BMS to supply or cut off the high-voltage current of the plurality of battery modules (1100) to an external load such as a motor or inverter. The PRA may be configured to mitigate voltage surges to prevent damage to the external load such as a motor or inverter.

[0121] The second partitions (1400) may be located between multiple battery modules (1100). When 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 may be separated by the second partitions (1400). The second partitions (1400) may extend in the X direction between the side wall (1222) and the third partition (1500) or between the side wall (1224) and the third partition (1500). The second partitions (1400) may be substantially perpendicular to the Y direction.

[0122] A third partition (1500) may be located between multiple battery modules (1100). When 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 may be separated by the third partition (1500). The third partition (1500) may extend in the Y direction between the first partition (1300) and the side wall (1223). The third partition (1500) may be substantially perpendicular to the X direction.

[0123] The lid can be attached to the side walls (1221, 1222, 1223, 1224) by a fastener. The lid can cover a plurality of battery modules (1100), a first bulkhead (1300), second bulkheads (1400), a third bulkhead (1500), and electrical components. The lid can be substantially perpendicular to the Z direction.

[0124]

[0125] The foregoing description is merely for illustrative purposes only. The scope of the rights of the present disclosure shall be interpreted by the claims, and all technical ideas within the scope equivalent or equivalent thereto shall be interpreted as being included within the scope of the rights of the present disclosure.

[0126]

[0127] [Explanation of the symbol]

[0128] 1000: Battery pack

[0129] 1100: Battery module

[0130] 1110: Pouch Cell

[0131] C: Center Department

[0132] SP: Sealing part

[0133] GP: Gas pocket

[0134] F: Folding part

[0135] 1111: Electrode lead

[0136] 1120: Module Frame

[0137] 1130: Busbar Frame

[0138] S: Slit

[0139] VS: Venting inhibition section

[0140] 1140: Bus Bar

[0141] 1150: Insulation cover

[0142] 1160: End plate

[0143] 1200: Pack Housing

[0144] 1300: 1st bulkhead

[0145] 1400: Second bulkhead

[0146] 1500: Third bulkhead

[0147] 1600: Exhaust device

Claims

1. A plurality of pouch cells 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 accommodating the plurality of pouch cells and open in the second direction; Busbars electrically connected to a plurality of electrode leads of the plurality of pouch cells; and A busbar frame that supports the above busbars and includes a plurality of slits and a plurality of venting suppression parts; Includes, Each of the above plurality of pouch cells includes a center portion where an electrode assembly is located, a gas pocket portion at the edge of the center portion, and a sealing portion at the edge of the gas pocket portion. The electrode lead of a corresponding one among the plurality of pouch cells passes through each of the plurality of slits, and The plurality of venting suppression portions are a battery module that overlaps in the first direction with a part of the sealing portion of a corresponding of the plurality of pouch cells.

2. In Paragraph 1, Each of the above plurality of pouch cells has a rectangular shape, and The above sealing portion includes a short side sealing portion and a long side sealing portion, and The above plurality of venting suppression portions are a battery module that overlaps in the first direction with the short side sealing portion of a corresponding of the plurality of pouch cells.

3. In Paragraph 2, The plurality of battery cells above include a first battery cell comprising a first electrode lead and a first short side sealing portion, and The above plurality of slits include a first slit, and The plurality of venting suppression parts include a first venting suppression part and a second venting suppression part that guide the first electrode lead to the first slit, and The first venting suppression portion is in contact with one side of the first short-sided sealing portion, and The above second venting suppression part is a battery module in contact with the opposite side of the above one side of the above first short-side sealing part.

4. In Paragraph 2, The plurality of battery cells above include a first battery cell including a first electrode lead and a first short side sealing portion and a second battery cell including a second electrode lead and a second short side sealing portion, and The above plurality of slits include a first slit, and The plurality of venting suppression parts include a first venting suppression part that guides the first electrode lead to the first slit, a second venting suppression part that guides the second electrode lead to the first slit, and a third venting suppression part that guides the first electrode lead and the second electrode lead to the first slit and is located between the first venting suppression part and the second venting suppression part. The first venting suppression portion is in contact with one side of the first short-sided sealing portion, and The second venting suppressor is in contact with one side of the second short-sided sealing portion, and The above third venting suppression part is a battery module in contact with the opposite side of the one side of the above first short-side sealing part and the opposite side of the one side of the above second short-side sealing part.

5. In Paragraph 2, The above gas pocket portion includes a short-side gas pocket portion and a long-side gas pocket portion, and The above plurality of venting suppression portions are battery modules that do not overlap with the short-side gas pocket portion of a corresponding of the plurality of pouch cells in the first direction.

6. In Paragraph 2, The above gas pocket portion includes a short-side gas pocket portion and a long-side gas pocket portion, and Each of the above plurality of venting suppression portions is a battery module that overlaps in the first direction with the short-side gas pocket portion of the corresponding of the plurality of pouch cells.

7. In Paragraph 6, Each of the above plurality of venting suppression portions is a battery module that does not come into contact with the short-side gas pocket portion of the corresponding of the plurality of pouch cells.

8. In Paragraph 1, The above module frame is a battery module including a top plate having a plurality of vent holes.

9. Pack housing including a base plate and side walls; A plurality of battery modules on the above-mentioned pack housing; and A lid that covers the plurality of battery modules and is coupled to the pack housing; Includes, Each of the above plurality of battery modules is, A plurality of pouch cells 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 accommodating the plurality of pouch cells and open in the second direction; Busbars short-circuited to a plurality of electrode leads of the plurality of pouch cells; and A busbar frame that supports the above busbars and includes a plurality of slits and a plurality of venting suppression parts; Includes, Each of the above plurality of pouch cells includes a center portion where an electrode assembly is located, a gas pocket portion at the edge of the center portion, and a sealing portion at the edge of the gas pocket portion. The electrode lead of a corresponding one among the plurality of pouch cells passes through each of the plurality of slits, and The above plurality of venting suppression portions overlap a battery pack in the first direction with a part of the sealing portion of a corresponding one of the plurality of pouch cells.

10. In Paragraph 9, The above module frame is a battery pack including a top plate having a plurality of vent holes.

11. In Paragraph 9, A battery pack further comprising at least one exhaust device disposed on at least one of the above-mentioned side walls.

Images