Battery system assembly and manufacturing method therefor

Abstract

A battery system assembly and a manufacturing method therefor are disclosed. The battery system assembly may include a case, a battery module assembly, a guide beam, and a fixing unit. The battery module assembly may be disposed in the case. The guide beam may be disposed to face the battery module assembly. The fixing unit may be formed to fix the guide beam at any one of a first position and a second position set along an approach direction toward the battery module assembly. The guide beam may form a zero-gap with respect to the battery module assembly at the second position.

Description

Battery system assembly and method for manufacturing the same

[0001] The present invention relates to a battery system assembly and a method for manufacturing the same.

[0002]

[0003] Secondary batteries are widely used as a power source for mobile devices. They are also attracting attention as a power source for electric vehicles (EVs) and hybrid electric vehicles (HEVs).

[0004] The basic unit of a secondary battery is the battery cell. While small mobile devices use one or two battery cells, medium- to large-sized devices such as automobiles use a battery pack assembly. A battery pack assembly electrically connects multiple battery module assemblies to achieve high output and large capacity. A battery module assembly connects multiple battery cells. The battery module assembly and battery pack assembly are integrated into a single case, which is then equipped with a cooling device. This ultimately creates a battery system assembly.

[0005] Swelling may occur in battery system assemblies, specifically battery module assemblies. Swelling reduces the electrical capacity of the battery module assembly. To prevent this, the battery system assembly may have a support structure that is in close contact with the battery module assembly.

[0006] However, the support structure may not properly adhere to the battery module assembly due to manufacturing tolerances. Reducing manufacturing tolerances to prevent this leads to a significant increase in costs.

[0007] The background technology described above is technical information that the inventor possessed for the purpose of deriving embodiments of the present invention or acquired during the derivation process, and cannot necessarily be said to be publicly known technology disclosed to the general public prior to the present application.

[0008]

[0009] An object of the present invention is to provide a battery system assembly and a method for manufacturing the same, which can achieve robust support for preventing swelling of a battery module assembly without reducing the manufacturing tolerance of the support structure.

[0010]

[0011] According to one aspect of the present invention for achieving the above-described task, a battery system assembly comprises: a case; a battery module assembly disposed in the case; a guide beam disposed to face the battery module assembly; and a fixing unit formed to fix the guide beam at one of a first position and a second position set along an approach direction toward the battery module assembly, wherein the guide beam can form a zero gap with respect to the battery module assembly at the second position.

[0012] Here, the guide beam can form a surface pressure of 3.5 to 5.5 bar against the battery module assembly at the second position.

[0013] Here, the guide beam can be spaced apart from the battery module assembly at the first position.

[0014] Here, the fixed unit may include a rail formed on one of the case and the guide beam; and a fastening member inserted at a point along the extension direction of the rail and formed to fasten the case and the guide beam.

[0015] Here, the rail may include a slot formed to extend along the approach direction.

[0016] Here, the fastening member can be coupled to the other one of the case and the guide beam.

[0017] Here, the fastening member includes a bolt arranged to penetrate the slot; and a nut screwed to the bolt to couple one of the bolts to the other, wherein one of the bolt and the nut may be attached to the other.

[0018] Here, the guide beam may include a contact surface facing the side of the battery module assembly; and a bottom surface connected to the contact surface and on which the rail is formed.

[0019] Here, the case includes a stationary wall positioned opposite the guide beam with respect to the battery module assembly, and as the guide beam is fixed at the second position, the battery module assembly can form the zero gap with respect to the stationary wall.

[0020] According to another aspect of the present invention, a battery system assembly comprises a case having a pair of stationary walls; a fixed film assembly having a low-friction film and a high-compressibility film and attached to the stationary walls; and a battery module assembly that is forcefully fitted between the pair of stationary walls while in contact with the low-friction film, wherein the fixed film assembly can form a zero-gap with respect to the battery module assembly.

[0021] Here, the low-friction film may have a lower coefficient of friction than the high-compressibility film, the high-compressibility film may have a higher compression ratio than the low-friction film, and may have a greater thickness than the low-friction film.

[0022] Here, the low-friction film may include a PET film, and the high-compressibility film may include a PU film.

[0023] Here, the fixed film assembly may further include a flame retardant film disposed between the high compression film and the stationary wall.

[0024] Here, the level of the top of the fixed film assembly may be higher than the top level of the pair of stop walls.

[0025] A method for manufacturing a battery system assembly according to another aspect of the present invention may include the steps of: arranging a battery module assembly in a case; arranging a guide beam to face the battery module assembly; moving the guide beam along an approach direction toward the battery module assembly so that the guide beam forms a zero gap with respect to the battery module assembly; and fixing the guide beam with respect to the case at a position where the zero gap is formed.

[0026] Here, the step of arranging the guide beam so as to face the battery module assembly may include a step of arranging the guide beam on the case such that a bolt coupled to the case is inserted into a slot formed in the guide beam.

[0027] Here, the step of moving the guide beam along an approach direction toward the battery module assembly so that the guide beam forms a zero gap with respect to the battery module assembly may include a step of moving the guide beam so that the bolt moves relative to the direction from one end of the slot toward the other end.

[0028]

[0029] According to the battery system assembly and the manufacturing method thereof according to the present invention configured as described above, the guide beam is fixed by the fixing unit at one of the first position and the second position set along the direction toward the battery module assembly arranged in the case to form a zero gap for the battery module assembly, so that it is possible to achieve solid support for preventing swelling of the battery module assembly without reducing the manufacturing tolerance for the configuration related to the installation of the guide beam. By not managing the manufacturing tolerance to a more precise level, it is possible to prevent an excessive increase in cost when manufacturing the battery system assembly.

[0030]

[0031] FIG. 1 is an assembly perspective view of a battery system assembly according to one embodiment of the present invention.

[0032] Fig. 2 is an enlarged perspective view of a portion related to the guide beam of Fig. 1.

[0033] Fig. 3 is a cross-sectional view of a portion related to the guide beam of Fig. 2.

[0034] Fig. 4 is a cross-sectional view showing the guide beam moved in Fig. 3.

[0035] FIG. 5 is a flowchart showing a method for manufacturing a battery system assembly according to another embodiment of the present invention.

[0036] Fig. 6 is a perspective view showing a situation in which the guide beam is moved in Fig. 1.

[0037] Fig. 7 is a perspective view showing one part of the jig of Fig. 6.

[0038] Figure 8 is an exploded perspective view of the fixed film assembly of Figure 1.

[0039]

[0040] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0041] The present invention is not limited to the embodiments disclosed below, but can be implemented in various forms and with various modifications. However, these embodiments are provided to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention. Therefore, the present invention is not limited to the embodiments disclosed below, but should be understood to include all modifications, equivalents, and substitutes included within the technical spirit and scope of the present invention, as well as substitutions or additions of the components of one embodiment with those of another embodiment.

[0042] The attached drawings are merely intended to facilitate understanding of the embodiments disclosed in this specification, and should not be construed as limiting the technical ideas disclosed in this specification, but should be understood to encompass all modifications, equivalents, and substitutes included within the spirit and technical scope of the present invention. In the drawings, the components may be expressed in exaggerated sizes or thicknesses for ease of understanding, but the scope of protection of the present invention should not be construed as being limited thereby.

[0043] The terminology used in this specification is only used to describe specific implementations or examples and is not intended to limit the present invention. In addition, the singular expressions include plural expressions unless the context clearly indicates otherwise. In the specification, terms such as "comprises" and "consists of" are intended to indicate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification. In other words, it should be understood that terms such as "comprises" and "consists of" do not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0044] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0045] When a component is referred to as being "connected / connected" or "connected" to another component, it should be understood that it may be directly connected / connected to that other component, or that there may be other components in between. Conversely, when a component is referred to as being "directly connected / connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0046] When a component is referred to as being "above" or "below" another component, it should be understood that it is not only positioned directly above that other component, but that there may also be other components present in between.

[0047] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined herein.

[0048] In the embodiment, the position and direction related to the battery system assembly are set based on the battery module assembly. The battery module assembly may generally have a rectangular parallelepiped shape. Accordingly, among the outer surfaces of the battery module, the upper side in the drawing is referred to as the upper side, and the lower side is referred to as the lower side. The side visible from the front of the battery module is referred to as the front side, and the side visible from the rear is referred to as the rear side. The remaining two side surfaces are referred to as the left side located to the left of the front side, and the right side located to the right of the front side. The direction connecting the front side and the rear side may be referred to as the length direction, and the direction connecting the upper side and the lower side may be referred to as the height direction. The direction connecting the left side and the right side may be referred to as the width direction. The length direction, the width direction, and the height direction may have a perpendicular relationship to each other.

[0049] FIG. 1 is an assembly perspective view of a battery system assembly according to one embodiment of the present invention, and FIG. 2 is an enlarged perspective view of a portion related to a guide beam of FIG. 1.

[0050] Referring to these drawings, the battery system assembly (100) may include a case (110), a battery module assembly (130, 130'), a guide beam (150), and a fixing unit (170).

[0051] The case (110) may generally have a box shape. A battery module assembly (130) and other components may be arranged on the bottom (111) of the case (110). A cooling water passage (not shown) for cooling the battery module assembly (130) may be provided on the bottom (111). A stationary wall (113, 115) may be formed to protrude from the bottom (111) in the height direction (H).

[0052] The battery module assembly (130, 130') may be placed on the floor (111). The battery module assembly (130, 130') may be supported by the floor (111) and further may be coupled to the floor (111). For example, a mounting bracket may be welded to the floor (111), and the battery module assembly (130, 130') may be bolted to the mounting bracket. The mounting bracket may be understood as a part of the case (110). The battery module assemblies (130) may be provided in multiple pieces, and they may be connected to each other to form a battery pack assembly. The battery pack assembly may be positioned between the stop wall (113) and the guide beam (150). In that case, the stop wall (113) may be positioned on the opposite side of the guide beam (150) with respect to the battery module assembly (130) (or the battery pack assembly). Another battery module assembly (130') may be positioned between a pair of stationary walls (115). A fixed film assembly (190) positioned between the battery module assembly (130') and the pair of stationary walls (115) will be described later with reference to FIG. 8.

[0053] Referring again to FIGS. 1 and 2, the guide beam (150) is positioned to face the battery module assembly (130). The guide beam (150) may be formed to extend along the longitudinal direction (L). The guide beam (150) may press one side of the battery module assembly (130) (a side parallel to the main surface of the battery cell) to press the battery pack assembly against the stationary wall (113).

[0054] The fixing unit (170) is formed to fix the guide beam (150) to a selected position among a plurality of set positions. The plurality of positions may include, for example, a first position (see FIG. 3) and a second position (see FIG. 4). In addition to the first position and the second position, the plurality of positions may further include a third position, etc. The plurality of positions may exist on a path along an approach direction (A, see FIG. 4) toward the battery module assembly (130). The approach direction (A) may specifically be along the width direction (W).

[0055] The fixing unit (170) may include a rail (171) and a fastening member. The rail (171) is configured to allow movement of the guide beam (150) with respect to the fastening member. The rail (171) also allows the guide beam (150) to be placed at a selected position among the plurality of positions. To this end, the rail (171) may be formed to extend along the approach direction (A). The rail (171) may be, for example, a slot. The fastening member may be inserted into the rail (171) to fasten the guide beam (150) to a point along the extending direction of the rail (171). The fastening member may include, for example, a bolt (175) and a nut (176). The bolt (175) may be attached to the case (110) by, for example, welding, while being positioned to penetrate the slot. The nut (176) can be screwed onto the bolt (175) to couple the guide beam (150) to the case (110). Alternatively, the nut (176) can be welded to the case (110) and the bolt (175) can be screwed onto the nut (176) through the slot.

[0056] In the above, it has been described that the rail (171) is formed on the guide beam (150) and the fastening member (particularly, the bolt (175)) is coupled to the case (110), but it is not limited thereto. In an alternative embodiment, the rail (171) may be formed on the case (110) and the fastening member may be coupled to the guide beam (150).

[0057] Furthermore, the fastening member is not limited to a bolt (175) and a nut (176), and may be another mechanical means, such as a rivet. Alternatively, the fastening means may be a strong adhesive filled into the rail (171).

[0058] Fig. 3 is a cross-sectional view of a portion related to the guide beam of Fig. 2.

[0059] Referring further to this drawing, the guide beam (150) may have a contact surface (151) and a bottom surface (153). The contact surface (151) faces the side surface of the battery module assembly (130) along the width direction (W), while the bottom surface (153) faces the case (110) along the height direction (H). The bottom surface (153) may have a relationship that is approximately perpendicular to the contact surface (151). A rail (171) may be formed on the bottom surface (153).

[0060] The guide beam (150) may further have a reinforcing surface (155) connected to the contact surface (151) and the bottom surface (153). The reinforcing surface (155) may firmly support the contact surface (151) with respect to the bottom surface (153). When the contact surface (151), the bottom surface (153), and the reinforcing surface (155) form a right-angled triangle cross-section, the reinforcing surface (155) may form a hypotenuse. The reinforcing surface (155) may form an inclined surface so as to form an acute angle with respect to the height direction (H). A tool hole (157, see FIG. 2) along the height direction (H) may be formed in the reinforcing surface (155).

[0061] The guide beam (150) can be spaced apart from the battery module assembly (130) while placed on the case (110). Specifically, the guide beam (150) forms a certain gap (G) with the battery module assembly (130) at the first position. If the fastening member is fastened at the first position, the contact surface (151) does not come into contact with the battery module assembly (130).

[0062] Fig. 4 is a cross-sectional view showing the guide beam moved in Fig. 3.

[0063] Referring further to this drawing, the guide beam (150) is moved along the approach direction (A) and is placed at the second position. When the guide beam (150) moves, the bolt (175) moves relative to the extension direction of the slot. The guide beam (150) is fixed by the fixing unit (170) at the second position. Specifically, the guide beam (150) is fixed to the case (110) as the nut (176) is screwed to the bolt (175). For fixing, a tool is inserted into the tool hole (157) to rotate the nut (176).

[0064] The guide beam (150) fixed at the second position forms a zero gap with respect to the battery module assembly (130). The zero gap refers to a state in which the guide beam (150) contacts the battery module assembly (130) at at least one point. Unlike the drawing, the contact surfaces of the battery module assembly (130) and the guide beam (150) are not exact planes. In this situation, in order to form the zero gap, a certain amount of surface pressure may be formed between the guide beam (150) and the battery module assembly (130). The surface pressure may be 3.5 to 5.5 bar, preferably 4 to 5 bar. If the surface pressure falls below the above standard, the zero gap may not be formed, and if it exceeds the above standard, the battery module assembly (130) may be subjected to excessive pressure. By the guide beam (150) pressing the battery module assembly (130) against the stationary wall (113, see FIG. 1), the battery module assembly (130) (specifically, the battery pack assembly) can form the zero gap with respect to the stationary wall (113).

[0065] A method for manufacturing the above battery system assembly is described with reference to FIGS. 5 to 7.

[0066] FIG. 5 is a flowchart showing a method for manufacturing a battery system assembly according to another embodiment of the present invention.

[0067] Referring to this drawing (and FIGS. 1 to 4), a battery module assembly (130) is arranged in a case (110) (S1). The battery module assembly (130) can be lowered from the air to the floor (111) by a lifter (not shown). The battery module assembly (130) can also be joined to the case (110), for example, by bolting or riveting.

[0068] In response to the battery module assembly (130), a guide beam (150) is arranged (S3). The guide beam (150) can be lowered in the height direction (H) toward the bolt (175) so that the bolt (175) can be inserted into the slot. The guide beam (150) can be arranged on the floor (111) so as to be positioned at the first position. Alternatively, with the guide beam (150) arranged on the floor (111), the battery module assembly (130) can be lowered in the height direction (H) between the stop wall (113) and the guide beam (150).

[0069] The guide beam (150) is moved toward the approach direction (A) (S5). The movement of the guide beam (150) can be guided by the rail (171) and the bolt (175). The bolt (175) moves relatively from one end of the slot toward the other end. The guide beam (150) reaches the second position. The guide beam (150) forms the zero gap with respect to the battery module assembly (130) at the second position.

[0070] The guide beam (150) is fixed to the second position (S7). To fix the guide beam (150), a fastening member of the fixing unit (170) is used. As the guide beam (150) is fixed, the zero-gap state can be maintained.

[0071] Fig. 6 is a perspective view showing a situation in which the guide beam is moved in Fig. 1, and Fig. 7 is a perspective view showing one part of the jig of Fig. 6.

[0072] Referring further to these drawings, a jig (200) may be used to move the guide beam (150). The jig (200) presses the guide beam (150) along the approach direction (A) according to the operator's operation.

[0073] The jig (200) may include a body (210), an insertion frame (230), a pressure arm (250), and a switch (270). The body (210) may accommodate a cylinder, for example, a pneumatic cylinder (not shown). The insertion frame (230) may be inserted into the space between the guide beam (150) and the case (110) by descending along the height direction (H). An end of the insertion frame (230) has a wedge shape so as to engage with the reinforcing surface (155) of the guide beam (150). The pressure arm (250) may be installed so as to be rotatable with respect to the insertion frame (230). When an operator operates the switch (270), the pressure arm (250) rotates due to the forward movement of the cylinder, thereby pressurizing the guide beam (150) toward the battery module assembly (130).

[0074] A wedge surface (253) may be formed on the body (251) of the pressurized arm (250). The wedge surface (253) may be engaged with the reinforcing surface (155) of the guide beam (150). An axial hole (255) and a linkage hole (257) may be formed on the body (251). A rotary shaft (not shown) that rotatably connects the body (251) with respect to the insertion frame (230) may be inserted into the axial hole (255). A connecting pin (not shown) that connects the body (251) and the rod of the cylinder may be inserted into the linkage hole (257). The linkage hole (257) may have an elongated hole shape in order to accommodate a change in the positional relationship between the rod and the body (251).

[0075] In an alternative embodiment, the jig (200) may be configured to lower the pressure arm (250) along the height direction (H) without rotating it. For example, when the pressure arm (250) is driven downward along the height direction (H) by a cylinder or the like, a wedging action may occur between the wedge surface (253) and the reinforcement surface (155). By this wedging action, the guide beam (150) may be moved along the approach direction (A).

[0076] Now, referring back to FIG. 1 along with FIG. 8, another form of zero-gap implementation structure will be described. FIG. 8 is an exploded perspective view of the fixed film assembly of FIG. 1.

[0077] Referring to FIGS. 1 and 8, a fixed film assembly (190) may be attached to a stationary wall (115). The fixed film assembly (190) may include a low-friction film (191) and a high-compressibility film (193). The low-friction film (191) has a lower coefficient of friction than the high-compressibility film (193), while the high-compressibility film (193) has a higher compressibility and a larger thickness than the low-friction film (191). For example, the low-friction film (191) may be a PET film, and the high-compressibility film (193) may be a PU film. The low-friction film (191) may be laminated to the high-compressibility film (193) during a molding process.

[0078] The fixed film assembly (190) may further include a flame retardant film (195). The flame retardant film (195) may be, for example, a mica film. The flame retardant film (195) prevents heat generated in the battery module assembly (130') from being transferred to the stationary wall (115). The flame retardant film (195) may be first attached to the stationary wall (115), followed by a high-compressibility film (193) and a low-friction film (191). The flame retardant film (195) may be attached to the high-compressibility film (193) using a double-sided tape (197). The flame retardant film (195) may also be attached to the stationary wall (115) using a double-sided tape (not shown). For reference, the flame retardant film may also be placed between the battery module assembly (130) and the guide beam (150) / stop wall (113).

[0079] The battery module assembly (130') is lowered along the height direction (H) and inserted into the space between a pair of stationary walls (115). The battery module assembly (130') is specifically force-fitted between the fixed film assemblies (190). During the force-fit, the high-compressibility film (193) is greatly compressed to allow the battery module assembly (130') to enter the space. The low-friction film (191) reduces friction with the battery module assembly (130'), thereby inducing the battery module assembly (130') to enter the space more smoothly. In order to allow the upper part of the fixed film assembly (190) to open, the level of the upper end of the fixed film assembly (190) along the height direction (H) may be higher than that of the stationary walls (115).

[0080] With the battery module assembly (130') being force-fitted between a pair of stop walls (115), the fixing film assembly (190) can form the zero gap with respect to the battery module assembly (130').

[0081]

[0082] The present invention has industrial applicability in the field of manufacturing battery system assemblies.

Claims

1. Case; A battery module assembly disposed in the above case; a guide beam positioned to face the battery module assembly; and Including a fixing unit formed to fix the guide beam at one of the first position and the second position set along the approach direction toward the battery module assembly, The above guide beam, A battery system assembly, wherein a zero gap is formed with respect to the battery module assembly at the second position.

2. In paragraph 1, The above guide beam, A battery system assembly, which forms a surface pressure of 3.5 to 5.5 bar for the battery module assembly at the second position.

3. In paragraph 1, The above guide beam, A battery system assembly spaced apart from the battery module assembly at the first location.

4. In paragraph 1, The above fixed unit is, a rail formed on one of the above case and the above guide beam; and A battery system assembly comprising a fastening member formed to fasten the case and the guide beam by being inserted at a point along the extension direction of the rail.

5. In paragraph 4, The above rail is, A battery system assembly comprising a slot formed extending along the above approach direction.

6. In paragraph 5, A battery system assembly, wherein the fastening member is coupled to the other of the case and the guide beam.

7. In paragraph 6, The above fastening member is, a bolt positioned to penetrate the slot; and A nut is screwed onto the bolt, and includes one of the nuts for joining the other to the other, A battery system assembly, wherein one of the bolts and the nuts is attached to the other.

8. In paragraph 5, The above guide beam, a contact surface facing the side of the above battery module assembly; and A battery system assembly comprising a bottom surface connected to the contact surface and on which the rail is formed.

9. In paragraph 8, The above guide beam, A battery system assembly further comprising a reinforcing surface connecting the contact surface and the bottom surface.

10. In paragraph 9, The above reinforcement surface is, A battery system assembly, which forms a hypotenuse in a right triangle cross section formed together with the above contact surface and the above bottom surface.

11. In paragraph 9, On the above reinforcement surface, A battery system assembly, wherein a tool hole is formed for accessing the above fastening member.

12. In paragraph 1, The above case is, Including a stationary wall located on the opposite side of the guide beam based on the battery module assembly; A battery system assembly, wherein the battery module assembly forms the zero gap with respect to the stationary wall as the guide beam is fixed at the second position.

13. A case having a pair of stop walls; A fixed film assembly having a low friction film and a high compression film and attached to the stationary wall; and A battery module assembly is provided that is forcefully fitted between the pair of stationary walls while in contact with the low-friction film, The above fixed film assembly, A battery system assembly forming a zero gap for the above battery module assembly.

14. In paragraph 13, The above low-friction film, Has a coefficient of friction smaller than that of the above high-compressibility film, The above high compression film, A battery system assembly having a higher compression ratio than the low-friction film and a greater thickness than the low-friction film.

15. In paragraph 13, The above low-friction film, Contains PET film, The above high compression film, A battery system assembly comprising a PU film.

16. In paragraph 13, The above fixed film assembly, A battery system assembly further comprising a flame retardant film disposed between the high-compressibility film and the stationary wall.

17. In paragraph 13, The level of the top of the above fixed film assembly is: A battery system assembly higher than the upper level of the above pair of stop walls.

18. Step of placing the battery module assembly in the case; A step of arranging a guide beam so as to face the above battery module assembly; A step of moving the guide beam along an approach direction toward the battery module assembly so that the guide beam forms a zero gap with respect to the battery module assembly; and A method for manufacturing a battery system assembly, comprising the step of fixing the guide beam to the case at a position forming the zero gap.

19. In paragraph 18, The step of arranging the guide beam so as to face the above battery module assembly is: A method for manufacturing a battery system assembly, comprising the step of placing the guide beam on the case such that a bolt coupled to the case is inserted into a slot formed in the guide beam.

20. In paragraph 19, The step of moving the guide beam along an approach direction toward the battery module assembly so that the guide beam forms a zero gap with respect to the battery module assembly is: A method for manufacturing a battery system assembly, comprising the step of moving the guide beam so that the bolt moves relative to one end of the slot toward the other end.

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