Battery Module

Abstract

A battery module according to an embodiment of the present invention may include a case having an open front side and providing an internal space, a plurality of battery cells accommodated in the case, a bus bar frame assembly electrically connected to the plurality of battery cells and positioned in front of the plurality of battery cells, an end cover coupled to the open front side of the case, and an insulating cover positioned between the bus bar frame assembly and the end cover and coupled to the bus bar frame assembly.

Description

[Technical Field]

[0001] The present invention relates to a battery module.

[0002] This application claims priority based on Korean Patent Application No. 10-2023-0096978, filed on July 25, 2023, the entire contents of which are incorporated herein by reference in their entirety in the specification and drawings thereof. [Background technology]

[0003] With the rapid increase in demand for portable electronic products such as laptops, video cameras, and mobile phones, and the full-scale commercialization of robots and electric vehicles, research into high-performance secondary batteries that can be repeatedly charged and discharged is actively underway.

[0004] Currently commercially available secondary batteries include nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, and lithium secondary batteries. Of these, lithium secondary batteries are attracting attention due to their advantages of being free to charge and discharge because they have almost no memory effect compared to nickel-based secondary batteries, an extremely low self-discharge rate, and a high energy density.

[0005] Such lithium secondary batteries mainly use lithium-based oxides and carbon materials as the positive and negative electrode active materials, respectively, and include an electrode assembly in which a separator is sandwiched between positive and negative electrode plates coated with the positive and negative electrode active materials, and an exterior case, i.e., a battery case, that hermetically houses the electrode assembly together with an electrolyte.

[0006] Generally, lithium secondary batteries are classified into can-type secondary batteries, in which an electrode assembly is housed in a metal can, and pouch-type secondary batteries, in which an electrode assembly is housed in a pouch made of an aluminum laminate sheet, depending on the shape of the exterior material.

[0007] Recently, secondary batteries have been widely used for driving and storing energy not only in small devices such as portable electronic devices but also in medium- to large-sized devices such as electric vehicles and energy storage systems (ESS). A battery module can be configured by electrically connecting multiple secondary batteries and storing them together inside a module case. A battery pack can also be configured by connecting multiple battery modules.

[0008] However, when multiple secondary batteries (battery cells) or multiple battery modules are packed into a small space, they may be vulnerable to thermal events. In particular, if an event such as thermal runaway occurs in one battery cell, high-temperature gas, flames, and heat may be generated. For example, if such gas, flame, or heat is transmitted to other battery cells in the same battery module, an explosive chain reaction such as thermal propagation may occur. Furthermore, such a chain reaction may not only cause accidents such as fire or explosion in the battery module, but also fire or explosion in other battery modules.

[0009] Furthermore, in the case of medium- to large-sized battery packs for electric vehicles, etc., the risk of thermal chain reactions is even greater because a large number of battery cells and battery modules are included to increase output and / or capacity. Furthermore, in the case of battery packs installed in electric vehicles, etc., users such as drivers may be present nearby. Therefore, if a thermal event occurring in a specific battery module is not properly controlled and a chain reaction occurs, it may cause not only significant property damage but also personal injury.

[0010] It is also important to enhance electrical safety by preventing the power of the battery cell from shorting out to adjacent components and causing current leakage in the event of a thermal event. Summary of the Invention [Problem to be solved by the invention]

[0011] The present invention is directed to solving the above-referenced problems and other problems.

[0012] Another object of the present invention is to provide a battery module with improved electrical safety in the event of a thermal event.

[0013] Another object of the present invention is to provide a battery module including a structure that can maintain electrical insulation between the end cover and the battery cells when a thermal event occurs.

[0014] It is still another object of the present invention to provide a battery module that allows easy vent control when a thermal event occurs. [Means for solving the problem]

[0015] To achieve the above object, one aspect of the present invention provides a battery module that includes a case that is open at a front side and provides an internal space, a plurality of battery cells housed in the case, a bus bar frame assembly that is electrically connected to the plurality of battery cells and positioned in front of the plurality of battery cells, an end cover that is coupled to the open portion at the front side of the case, and an insulating cover that is positioned between the bus bar frame assembly and the end cover and coupled to the bus bar frame assembly.

[0016] The insulating cover may also include a mica material.

[0017] The case may also include a vent hole on the top surface.

[0018] The bus bar frame assembly may include a frame body that covers a front side of the case, and a bus bar that is provided on a front surface of the frame body and electrically connected to the battery cell, and the insulating cover may entirely cover the front side of the bus bar.

[0019] The bus bar frame assembly may also include a hook protruding forward, and the insulating cover may be coupled to the hook.

[0020] The insulating cover includes a flat insulating plate and a locking groove formed inward from one end of the insulating plate, and the hook passes through the locking groove and is hooked onto the front surface of the insulating plate.

[0021] The end cover may include a receiving portion formed on a rear surface thereof, and at least a portion of the hook may be received in the receiving portion.

[0022] The battery module may further include a fastening member that connects the insulating cover to the bus bar frame assembly.

[0023] The end cover may also be configured to support the insulating cover.

[0024] The end cover may include a first support portion that protrudes rearward, and the first support portion may cover a side of the insulating cover.

[0025] The insulating cover may include a flat insulating plate and a second support portion that protrudes rearward from an end of the insulating plate, and the first support portion may face the second support portion.

[0026] The battery module may further include an adhesive member disposed between the end cover and the insulating cover.

[0027] A battery pack according to one aspect of the present invention includes the battery module of the present invention.

[0028] An automobile according to one aspect of the present invention includes the battery module of the present invention. [Effects of the Invention]

[0029] According to at least one of the embodiments of the present invention, the electrical safety of the battery module can be improved.

[0030] According to at least one of the embodiments of the present invention, vent control of a battery module can be facilitated.

[0031] The following drawings attached to this specification illustrate preferred embodiments of the present invention and, together with the detailed description of the invention, serve to further understand the technical concepts of the present invention. Therefore, the present invention should not be interpreted as being limited to only the matters described in the drawings. [Brief explanation of the drawings]

[0032] [Figure 1] 1 is a perspective view showing a battery module according to an embodiment of the present invention; [Figure 2] 1 is a diagram illustrating a partial configuration of a battery module according to an embodiment of the present invention in an separated state. [Figure 3] 1 is a perspective view showing an insulating cover of a battery module according to an embodiment of the present invention; [Figure 4] 4 is a view of the insulating cover of FIG. 3 as seen from another direction. [Figure 5] 3 is a view showing an insulating cover of a battery module according to an embodiment of the present invention in a separated state; FIG. [Figure 6] 10 is a view showing an insulating cover of a battery module according to an embodiment of the present invention being coupled; [Figure 7] FIG. 2 is a perspective view showing an end cover of a battery module according to an embodiment of the present invention. [Figure 8] 8 is a view of the end cover of FIG. 7 seen from another direction. [Figure 9] 1 is a view showing an end cover of a battery module according to an embodiment of the present invention in a separated state; [Figure 10] 10 is a view showing an end cover of a battery module according to an embodiment of the present invention when the end cover is coupled; [Figure 11] 11 is a diagram schematically illustrating a part of the cross-sectional configuration taken along the line AA' in FIG. 10. FIG. [Figure 12] 11 is a diagram schematically illustrating a part of the cross-sectional configuration taken along the line BB' in FIG. 10. FIG. [Figure 13] 11 is a diagram schematically illustrating a part of the cross-sectional configuration taken along the line CC' in FIG. 10. FIG. [Figure 14] 11 is a diagram schematically illustrating a part of the cross-sectional configuration taken along the cutting line DD' in FIG. 10. FIG. [Figure 15] FIG. 15 shows the changes in FIG. 14 when a thermal event occurs. [Figure 16] 10A and 10B are diagrams illustrating a partial configuration of a battery module according to another embodiment of the present invention. [Figure 17] 10 is a view showing a partial configuration of a battery module according to still another embodiment of the present invention in an exploded view. [Figure 18] FIG. 15 shows a modified embodiment of FIG. DETAILED DESCRIPTION OF THE INVENTION

[0033] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, the terms and phrases used in the specification and claims should not be construed as being limited to their ordinary and dictionary meanings, but should be construed as having meanings and concepts corresponding to the technical ideas of the present invention, in accordance with the principle that the inventors themselves can appropriately define the concepts of terms in order to best describe the invention.

[0034] Therefore, it should be understood that the configurations shown in the embodiments described in this specification are merely the most desirable embodiments of the present invention and do not represent the entire technical idea of ​​the present invention, and that there may be various equivalents and modifications that can be substituted therefor at the time of this application.

[0035] Fig. 1 is a perspective view showing a battery module according to an embodiment of the present invention. Fig. 2 is a view showing a partial configuration of a battery module according to an embodiment of the present invention in isolation. Referring to Fig. 1 and Fig. 2, the battery module according to an embodiment of the present invention may include a case 100, a plurality of battery cells 200, a bus bar frame assembly 300, an end cover 500, or an insulating cover 400.

[0036] The case 100 may include an upper case 120 and a lower case 110. The upper case 120 and the lower case 110 may be fastened, coupled, fixed, or attached. The case 100 may have a rectangular parallelepiped shape. The case 100 may have an open front and rear side. The case 100 may have an internal space. The case 100 may also be formed as a single unit. The case 100 may include a metal material.

[0037] A plurality of battery cells 200 may be housed in the case 100. In this case, the battery cells 200 may refer to secondary batteries. The battery cells 200 may be pouch-type secondary batteries. The plurality of battery cells 200 may be stacked in the left-right direction. The battery cell 200 may include a body 210 and electrode leads 220 protruding in the front-rear direction from the body 210. The electrode leads 220 may be provided at the front and rear of the body 210, respectively.

[0038] The battery module may further include a barrier 600. The barrier 600 may be disposed between the plurality of battery cells 200. The barrier 600 may also separate the plurality of battery cells 200. The barrier 600 may delay or prevent the propagation of flames, heat, gases, sparks, etc. in the event of a thermal event.

[0039] The bus bar frame assembly 300 may be electrically connected to the plurality of battery cells 200. The bus bar frame assemblies 300 may be provided in pairs. The bus bar frame assemblies 300 may be provided on the front and rear sides of the plurality of battery cells 200, respectively. Each of the pair of bus bar frame assemblies 300 may be electrically connected to the plurality of battery cells 200.

[0040] The end cover 500 may be provided in pairs. The end cover 500 may be coupled, fastened, or fixed to an opening on the front side of the case 100. The end cover 500 may also be coupled, fastened, or fixed to an opening on the rear side of the case 100. In this case, the end cover 500 and the case 100 may be coupled by welding. The end cover 500 may include a metal material.

[0041] The insulating covers 400 may be provided in pairs. The insulating covers 400 may be positioned between the bus bar frame assembly 300 and the end cover 500. Each of the pair of insulating covers 400 may be coupled, fastened, attached, or fixed to the bus bar frame assembly 300.

[0042] According to this configuration of the present invention, the insulating cover 400 is coupled to the frame of the bus bars 320 and 330, thereby electrically insulating the end cover 500 and the bus bar frame assembly 300.

[0043] 1 and 2, the insulating cover 400 of the battery module according to one embodiment of the present invention may include a mica material. In this case, the insulating cover 400 may be formed by processing a mica sheet at high temperature or high pressure. Alternatively, the insulating cover 400 may be formed by stacking a plurality of mica sheets and then processing them at high temperature or high pressure. The insulating cover 400 may be configured to have high rigidity.

[0044] According to this configuration of the present invention, the insulating cover 400 can maintain its shape without melting or breaking even when a thermal event occurs, thereby enabling the insulating cover 400 to stably maintain electrical insulation between the bus bar frame assembly 300 and the end cover 500.

[0045] 1 and 2, a case 100 of a battery module according to an embodiment of the present invention may include a vent hole 121 provided on an upper surface thereof. The vent hole 121 may be provided in an upper case 120. A plurality of vent holes 121 may be provided.

[0046] According to this configuration of the present invention, even if a thermal event occurs, the insulating cover 400 can prevent or block vent gas or ignitable particles from being emitted in the front-to-rear direction of the battery module. As a result, the vent gas or ignitable particles can be discharged upward through the vent holes 121. Therefore, the insulating cover 400 can facilitate vent control.

[0047] Fig. 3 is a perspective view showing an insulating cover 400 of a battery module according to one embodiment of the present invention. Fig. 4 is a view of the insulating cover 400 of Fig. 3 seen from another direction. Fig. 5 is a view showing the insulating cover 400 of the battery module according to one embodiment of the present invention in a separated state. Fig. 6 is a view showing the insulating cover 400 of the battery module according to one embodiment of the present invention in a assembled state. Referring to Figs. 3 to 6, the bus bar frame assembly 300 of the battery module according to one embodiment of the present invention may include a frame body 310 and bus bars 320, 330.

[0048] The frame body 310 may be located on the front side or rear side of the plurality of battery cells 200. The frame body 310 may also cover the front side or rear side of the plurality of battery cells 200. The frame body 310 may be made of an electrically insulating material. For example, the frame body 310 may include a plastic material.

[0049] The bus bars 320 and 330 may be provided on the frame body 310. The bus bars 320 and 330 may be seated, fixed, fastened, coupled, or attached to the frame body 310. The bus bars 320 and 330 may be provided on the front surface of the front frame body 310. The bus bars 320 and 330 may be provided on the rear surface of the rear frame body 310. The bus bars 320 and 330 may be electrically or physically connected to the plurality of battery cells 200. The bus bars 320 and 330 may be coupled, fastened, attached, or welded to the electrode leads 220 of the plurality of battery cells 200. In this case, the term "bus bars 320 and 330" collectively refers to the inter-bus bars 320 and the terminal bus bars 330. The terminal bus bars 330 may output power from the battery module and receive external power. The terminal bus bars 330 may be electrically or physically connected to an external device. The terminal bus bars 330 may be provided in pairs. The inter-bus bars 320 may be located between the pair of terminal bus bars 330. A plurality of inter-bus bars 320 may be provided.

[0050] The insulating cover 400 can entirely cover the front sides of the bus bars 320, 330 of the front bus bar frame assembly 300. As a result, the bus bars 320, 330 of the front bus bar frame assembly 300 are not exposed to the outside. In addition, the insulating cover 400 can entirely cover the rear sides of the bus bars 320, 330 of the rear bus bar frame assembly 300. As a result, the bus bars 320, 330 of the rear bus bar frame assembly 300 are not exposed to the outside.

[0051] According to this configuration of the present invention, insulating cover 400 can stably maintain the electrical insulation state between bus bars 320, 330 and end cover 500.

[0052] The following description will be based on the front bus bar frame assembly 300, the insulating cover 400, and the end cover 500. Referring to FIGS. 3 to 6 , the bus bar frame assembly 300 of the battery module according to an embodiment of the present invention may include a hook 211 protruding forward. The hook 211 may protrude from the frame body 310. The hook 211 may be made of the same material as the frame body 310. A plurality of hooks 211 may also be provided. The insulating cover 400 may be coupled, fastened, or fixed to the hook 211. The insulating cover 400 may be coupled, fastened, or fixed to a plurality of hooks 211.

[0053] According to this configuration of the present invention, the insulating cover 400 can be stably fixed in position. The insulating cover 400 contains a highly rigid mica material, which may significantly limit the shaping thereof. For example, forming hooks on the insulating cover 400 may be significantly limited. Furthermore, if the end cover 500 is made of a metal material, which may significantly limit the shaping thereof. For example, forming hooks on the end cover 500 may be significantly limited. Therefore, it is desirable to form the hooks 211 on the frame body 310, which is made of an easily moldable material. Forming the hooks 211 on the frame body 310 can improve the productivity and assembly of the battery module.

[0054] 3 to 6 , an insulating cover 400 of a battery module according to an embodiment of the present invention may include an insulating plate 410 and a locking groove 411. The insulating plate 410 may have a flat plate shape. Alternatively, the insulating plate 410 may have an overall rectangular shape. The locking groove 411 may be formed inward from one end of the insulating plate 410. The locking groove 411 may be formed to penetrate the insulating plate 410. The hook 211 passes through the locking groove 411 and is hooked onto the front surface of the insulating plate 410. A plurality of locking grooves 411 may be provided. The locking grooves 411 may be provided in one-to-one correspondence with the hooks 211. For example, there may be four locking grooves 411 and four hooks 211, and the hooks 211 may be provided on the upper, lower, left, and right sides of the frame body 310, respectively. The bus bars 320 and 330 may be located between the hooks 211.

[0055] According to this configuration of the present invention, the insulating cover 400 and the bus bar frame assembly 300 can be stably coupled together.

[0056] Fig. 7 is a perspective view showing an end cover 500 of a battery module according to an embodiment of the present invention. Fig. 8 is a view of the end cover 500 of Fig. 7 seen from another direction. Fig. 9 is a view showing the end cover 500 of the battery module according to an embodiment of the present invention in a separated state. Fig. 10 is a view showing the end cover 500 of the battery module according to an embodiment of the present invention in a combined state. Referring to Figs. 7 to 10, the end cover 500 according to an embodiment of the present invention may include a flat end plate 510.

[0057] The end cover 500 may include a first support portion 520 protruding from a rear surface of the end plate 510. The end cover 500 may also include a receiving portion 511 formed on the rear surface. The receiving portion 511 may be formed inside the first support portion 520. The receiving portion 511 may be a groove. The receiving portion 511 may not penetrate the end cover 500. A plurality of receiving portions 511 may be provided. The plurality of receiving portions 511 may be provided to correspond one-to-one with the hooks 211. The plurality of receiving portions 511 may also be positioned to correspond to the hooks 211. When the end cover 500 and the case 100 are combined, at least a portion of the hook 211 may be received or inserted into the receiving portion 511.

[0058] According to this configuration of the present invention, the gap between the insulating cover 400 and the end cover 500 may be reduced, or the insulating cover 400 and the end cover 500 may be closely attached to each other, thereby improving the energy density of the battery module.

[0059] Conventionally, through holes are formed in the end cover 500 and the insulating cover 400 is fastened to the through holes. This creates the risk that vent gas or ignitable particles may be ejected through the through holes in the end cover 500 when a thermal event occurs.

[0060] Meanwhile, according to this configuration of the present invention, since the end cover 500 does not include any through holes, even if a thermal event occurs, it is possible to prevent vent gas or ignitable particles from being ejected through the end cover 500. This allows vent gas or ignitable particles to be discharged upward through the vent holes 121. Therefore, the end cover 500 can facilitate vent control.

[0061] Fig. 11 is a diagram schematically showing a portion of the cross-sectional configuration taken along the section line A-A' in Fig. 10. Fig. 12 is a diagram schematically showing a portion of the cross-sectional configuration taken along the section line B-B' in Fig. 10. Fig. 13 is a diagram schematically showing a portion of the cross-sectional configuration taken along the section line C-C' in Fig. 10. Fig. 14 is a diagram schematically showing a portion of the cross-sectional configuration taken along the section line D-D' in Fig. 10. Fig. 15 shows changes in Fig. 14 when a thermal event occurs.

[0062] 10 to 15, an end cover 500 of a battery module according to an embodiment of the present invention may be configured to support the insulating cover 400. The end cover 500 may be positioned in close contact with or adjacent to the insulating cover 400.

[0063] According to this configuration of the present invention, when a thermal event occurs, the fastening, fixing, coupling, and attachment structure between the insulating cover 400 and the bus bar frame assembly 300 may be damaged. The end cover 500 supports the insulating cover 400, thereby preventing the insulating cover 400 from shifting position, thereby improving the electrical safety and thermal safety of the battery module.

[0064] 10 to 15 , an end cover 500 of a battery module according to an embodiment of the present invention may include a first support portion 520 protruding rearward. The first support portion 520 may extend along the periphery of the end cover 500. The first support portion 520 may cover the periphery, side, or end of the insulating cover 400. In addition, at least a portion of the hook 211 may be inserted into the receiving portion 511. The receiving portion 511 may be located inside the first support portion 520. In addition, the hook 211 may be located inside the first support portion 520.

[0065] 15, when a thermal event occurs, the ejected vent gas g and pyrotechnic particles f may damage the fastening, fixing, coupling, and attachment structure between the insulating cover 400 and the bus bar frame assembly 300. Furthermore, when a thermal event occurs, the bus bars 320 and 330 may be separated from the frame body 310, and the bus bars 320 and 330 may move toward the end cover 500.

[0066] According to this configuration of the present invention, first support portion 520 of end plate 510 supports insulating cover 400, thereby preventing the position of insulating cover 400 from shifting. As a result, insulating cover 400 can block contact between end cover 500 and bus bars 320, 330.

[0067] 10 to 15 , an insulating cover 400 of a battery module according to one embodiment of the present invention may include a flat insulating plate 410 and a second support portion 420 protruding rearward from an end of the insulating plate 410. The second support portion 420 may extend along the periphery of the insulating cover 400. The first support portion 520 of the end cover 500 may face the second support portion 420.

[0068] According to this configuration of the present invention, the area where the end cover 500 supports the insulating cover 400 can be enlarged. Alternatively, the contact area between the end cover 500 and the insulating cover 400 can be increased. As a result, the insulating cover 400 can be more stably supported by the end cover 500.

[0069] Fig. 16 is a diagram illustrating a partial configuration of a battery module according to another embodiment of the present invention. Referring to Fig. 16, the battery module according to another embodiment of the present invention may further include a fastening member b that connects the insulating cover 400 to the bus bar frame assembly 300. The fastening member b may penetrate the insulating plate 410 of the insulating cover 400. The fastening member b may also be fastened to the frame body 310. The fastening member b may include an electrically insulating material. A plurality of fastening members b may also be provided. The fastening members b may be provided on the upper, lower, left, and right sides.

[0070] According to this configuration of the present invention, the insulating cover 400 can be stably coupled, fastened, or fixed to the frame body 310. Furthermore, since the fastening member b has electrical insulation properties, electrical safety can be maintained even if the fastening member b separates and moves due to the occurrence of a thermal event.

[0071] Fig. 17 is an isolated view showing a portion of a battery module according to another embodiment of the present invention. Fig. 18 is a view showing a modified embodiment of Fig. 14. Referring to Figs. 14, 17, and 18, the battery module according to another embodiment of the present invention may further include an adhesive member 700 disposed between the end cover 500 and the insulating cover 400. The adhesive member 700 may fix the insulating cover 400 to the end cover 500. The adhesive member 700 may be provided on a front surface of the insulating plate 410. Alternatively, the adhesive member 700 may be provided on a rear surface of the end plate 510.

[0072] According to this configuration of the present invention, the area where the end cover 500 supports the insulating cover 400 can be enlarged, or the bonding strength between the end cover 500 and the insulating cover 400 can be strengthened. As a result, the insulating cover 400 can be more stably supported by the end cover 500.

[0073] The battery pack according to the present invention may include the battery module according to the present invention described above. In addition, the battery pack according to the present invention may further include various other components in addition to the battery module according to the present invention, such as components of a battery pack known at the time of filing of the present invention, such as a BMS, a bus bar, a pack case, a relay, and a current sensor.

[0074] Meanwhile, the battery module and the battery pack are not strictly separate terms, and may be used interchangeably. For example, a battery pack that does not include a BMS may refer to a battery module. Also, considering an embodiment of a battery module, if the battery module functions as a battery pack, the battery module may refer to a battery pack.

[0075] An automobile according to the present invention may include the battery module according to the present invention. The battery module according to the present invention may be applied to automobiles such as electric automobiles and hybrid automobiles. In addition to the battery module, the automobile according to the present invention may further include various other components included in the automobile, such as a body, a motor, and a control device such as an ECU (electronic control unit).

[0076] Meanwhile, although terms indicating directions such as up, down, left, right, front, and back are used in this specification, it will be apparent to those skilled in the art of the present invention that such terms are used for the convenience of explanation and may vary depending on the position of the object in question, the position of the observer, etc.

[0077] Although the present invention has been described above using limited embodiments and drawings, it goes without saying that the present invention is not limited thereto, and that various modifications and variations can be made by a person having ordinary knowledge in the technical field to which the present invention pertains within the technical spirit of the present invention and the equivalent scope of the claims set forth below.

Claims

1. The case has an open front, providing interior space. a plurality of battery cells housed in the case; a bus bar frame assembly electrically connected to the plurality of battery cells and positioned in front of the plurality of battery cells; an end cover coupled to an opening on the front side of the case; an insulating cover positioned between the bus bar frame assembly and the end cover and coupled to the bus bar frame assembly; Including a battery module.

2. The insulating cover is 10. The battery module of claim 1, comprising a mica material.

3. The case is The battery module according to claim 1 , further comprising a vent hole provided on an upper surface thereof.

4. The bus bar frame assembly includes: a frame body covering the front side of the case; a bus bar provided on a front surface of the frame body and electrically connected to the battery cell; Including, The insulating cover is The battery module according to claim 1 , wherein the battery module entirely covers a front side of the bus bar.

5. The bus bar frame assembly includes: a forwardly projecting hook; The insulating cover is The battery module according to claim 1 , coupled to the hook.

6. The insulating cover is a flat insulating plate; a locking groove formed inward from one end of the insulating plate; Including, The hook is The battery module according to claim 5 , wherein the battery module is hooked onto the front surface of the insulating plate through the locking groove.

7. The end cover is a receiving portion formed on a rear surface; At least some of the hooks are The battery module according to claim 5 , which is housed in the housing portion.

8. The battery module according to claim 1 , further comprising a fastening member that couples the insulating cover to the bus bar frame assembly.

9. The end cover is The battery module according to claim 1 , configured to support the insulating cover.

10. The end cover is a first support portion protruding rearward; The first support portion is The battery module according to claim 1 , further comprising: a cover for covering a side of the insulating cover.

11. The insulating cover is a flat insulating plate; a second support portion protruding rearward from an end of the insulating plate; Including, The first support portion is The battery module according to claim 10 , facing the second support portion.

12. The battery module according to claim 1 , further comprising an adhesive member disposed between the end cover and the insulating cover.

13. A battery pack comprising the battery module according to any one of claims 1 to 12.

14. A motor vehicle comprising a battery module according to any one of claims 1 to 12.

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