Battery module, battery pack including the battery module, and vehicle

By incorporating a resin section and a gas emission structure within the battery module, the problem of thermal event propagation in the battery cell is solved, enabling effective guidance and emission of gases and flames, and preventing thermal runaway of adjacent battery cells.

CN122477559APending Publication Date: 2026-07-28LG ENERGY SOLUTION LTD
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Patent Information

Application Number
CN202580006099.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2024-11-26
Filing Date
2025-08-06
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

When a thermal event occurs in a battery cell, the gas and flame may spread to adjacent battery cells, causing the thermal event to spread.

Method used

A resin section is provided in the battery module, surrounding the outer peripheral surface of the battery cell, and a gas exhaust section is provided in the upper region of the internal space of the module housing to guide the gas and flame to be discharged to the outside. An exhaust hole is provided in conjunction with the top cover of the module housing.

Benefits of technology

It effectively prevents the propagation of thermal events from adjacent battery cells, ensures that gases and flames are discharged in the desired direction, and avoids the spread of thermal runaway.

✦ Generated by Eureka AI based on patent content.

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Abstract

A battery module according to one embodiment of the present application includes a plurality of battery cells, a module case configured to accommodate the plurality of battery cells, and a resin portion provided in an upper region of an inner space of the module case, configured to surround an outer peripheral surface of the plurality of battery cells, and configured to guide gas discharged from an upper portion of the battery cells to an outside of the module case.
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Description

Technical Field

[0001] This invention relates to battery modules, battery packs including battery modules, and vehicles. Background Technology

[0002] Unlike primary batteries, which are non-rechargeable, secondary batteries are rechargeable batteries that can be charged and discharged. They are widely used not only in portable devices but also in electric vehicles (EVs) and hybrid electric vehicles (HEVs) powered by electric power sources.

[0003] Currently, widely used rechargeable batteries include lithium-ion batteries, lithium polymer batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and nickel-zinc batteries. The operating voltage of a single rechargeable battery cell (i.e., a single cell) is approximately 2.5V to 4.6V. Therefore, when a higher output voltage is required, multiple cells can be connected in series to form a battery pack. Furthermore, depending on the charge / discharge capacity requirements, multiple cells can be connected in parallel to configure a battery pack. Thus, the number of cells incorporated into a battery pack can be varied according to the required output voltage or charge / discharge capacity.

[0004] When multiple battery cells are connected in series and / or parallel to form a battery pack, the common practice is to first configure a battery module comprising at least one battery cell (preferably multiple battery cells), and then combine at least one such battery module with other components to form a battery pack. Here, a battery module refers to a unit consisting of multiple battery cells connected in series and / or parallel, while a battery pack refers to a structure in which multiple battery modules are interconnected in series and / or parallel to enhance capacity and output.

[0005] Meanwhile, in the case of cylindrical battery cells, when a large amount of gas is generated inside, the notch portion typically ruptures and the vent bursts, thereby releasing gas and / or flames to the outside. In this situation, the released gas and / or flames may affect adjacent battery cells, becoming a cause of heat propagation. Therefore, it is necessary to prevent thermal events occurring in one battery cell from propagating to adjacent battery cells. Summary of the Invention

[0006] Technical issues

[0007] The purpose of this invention is to discharge gas and / or flame from the battery cell in a desired direction.

[0008] Specifically, the purpose of this invention is to prevent thermal events of the battery cell from propagating to adjacent battery cells by providing a resin portion on the upper side of the battery cell, so that gas and / or flames are guided to the outside of the battery module.

[0009] However, the technical problems to be solved by the present invention are not limited to those described above, and those skilled in the art will clearly understand other objectives not explicitly mentioned through the following description of the present invention.

[0010] Solution to the problem

[0011] In one embodiment of the present invention, a battery module includes: a plurality of battery cells; a module housing configured to accommodate the plurality of battery cells; and a resin portion disposed in an upper region of the interior space of the module housing, configured to surround the outer peripheral surface of the plurality of battery cells, and configured to guide gas emitted from the upper part of the battery cells to the outside of the module housing.

[0012] In one aspect of the invention, the venting portion of the battery cell may be positioned upwards within the battery module.

[0013] In another aspect of the invention, the top cover of the module housing may be provided with at least one vent hole.

[0014] Preferably, the resin portion may include a gas emission portion that extends along the height direction of the battery module and has a shape that conforms to the surface of the battery cell.

[0015] More preferably, the gas emission section can be formed in the form of a flow path.

[0016] In one aspect of the invention, at least a portion of the battery cell may be housed within the gas emission portion of the resin portion.

[0017] In another aspect of the invention, the upper end of the battery cell may be configured as a region located between the upper and lower surfaces of the resin portion.

[0018] Preferably, an exhaust space can be formed between the gas exhaust section and the upper cover.

[0019] In another aspect of the invention, at least a portion of the gas emission section may be covered by the top cover.

[0020] In one aspect of the invention, the gas discharge section may be configured to communicate with the exhaust port.

[0021] In another aspect of the invention, a battery module is provided, wherein the gas emission section and the exhaust port have a first region configured to be in fluid communication with each other.

[0022] In another aspect of the invention, a battery module is provided in which the gas emission section and the exhaust port have second regions configured to overlap each other.

[0023] In one aspect of the invention, the battery module may further include a resin support portion that supports the resin portion from below.

[0024] Meanwhile, the present invention provides a battery pack, the battery pack including at least one battery cell according to the above embodiments.

[0025] Furthermore, the present invention provides a vehicle comprising at least one battery pack according to the above embodiments.

[0026] Beneficial effects of the invention

[0027] According to the present invention, gas and / or flame can be emitted from the battery cell in a desired direction.

[0028] Specifically, according to the present invention, by providing a resin portion at the top of the battery cell, gas and / or flame can be directly guided to the outside of the battery module, which can effectively prevent thermal runaway events of adjacent battery cells.

[0029] However, the beneficial effects of the present invention are not limited to those described above, and other technical effects not explicitly mentioned will be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0030] Preferred embodiments of the invention are illustrated in conjunction with the accompanying drawings, which are incorporated in and form part of this specification, and together with the detailed description set forth below, serve to further elucidate the technical concept of the invention. However, the invention should not be construed as limited to what is shown in these drawings.

[0031] Figure 1 This is a diagram illustrating a battery module according to one embodiment of the present invention.

[0032] Figure 2 yes Figure 1 The image shows an exploded perspective view of the battery module.

[0033] Figure 3 This is a diagram illustrating the battery cells included in a battery module according to an embodiment of the present invention.

[0034] Figure 4 This is a diagram showing the internal structure of a battery module according to an embodiment of the present invention.

[0035] Figure 5 This is a plan view of a battery module according to an embodiment of the present invention, viewed from above.

[0036] Figure 6 It shows including Figure 1 A diagram of the battery module and battery pack.

[0037] Figure 7 It shows including Figure 6 A picture of a vehicle with a battery pack. Detailed Implementation

[0038] The advantages and features of the present invention, as well as methods of implementing them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed herein, but can be implemented in various forms. These embodiments are provided only to ensure that the disclosure of the invention is complete and fully informs those skilled in the art of the scope of the invention. The invention is defined only by the scope of the claims. Therefore, in some embodiments, well-known process steps, equipment structures, and techniques may not be described in detail to avoid obscuring the invention. Throughout the specification, the same reference numerals denote the same elements.

[0039] In the accompanying drawings, the thickness of layers and regions may be exaggerated to clearly show multiple layers and regions. Throughout the specification, similar components are indicated by the same reference numerals. When an element such as a layer, film, region, or plate is referred to as being "on" another element, it may be directly on that other element, or there may be intermediate elements present. Conversely, when an element is referred to as being "directly on" another element, it should be understood that no intermediate elements exist. Similarly, when an element is referred to as being "below" another element, it may be directly below that other element, or there may be intermediate elements present. Conversely, when an element is referred to as being "directly" below another element, it should be understood that no intermediate elements exist.

[0040] Figure 1 This is a perspective view showing a battery module 10 according to an embodiment of the present invention. Figure 2 This is an exploded perspective view of battery module 10.

[0041] Reference Figure 1 and Figure 2 The battery module 10 according to the present invention includes a battery cell 100, a module housing 200 and a resin part 300.

[0042] Figure 3 This is a diagram illustrating a battery cell 100 according to an embodiment of the present invention. A battery module 10 according to the present invention may include a plurality of battery cells 100.

[0043] refer to Figure 3The battery cell 100 can be a rechargeable battery, and can be, for example, a cylindrical battery cell 100. However, the type of battery cell 100 is not limited to this, and other types of battery cells 100, such as pouch cells or prismatic cells, can also be used in the battery module 10 of the present invention. The battery cell 100 of the present invention can be used without any restrictions on the cell shape factor.

[0044] In the following text, reference will be made to Figure 3 This describes battery cell 100 as an example of a cylindrical cell. (Reference) Figure 3 The battery cell 100 includes an electrode assembly, a battery casing 20, and a top cover 30.

[0045] The electrode assembly includes a first electrode tab and a second electrode tab. Specifically, the electrode assembly includes a first electrode, a second electrode, and a separator between the first and second electrodes. The electrode assembly has a structure in which the first electrode, the second electrode, and the separator between the first and second electrodes are wound around a winding axis to define a core and an outer peripheral surface. That is, the electrode assembly suitable for this invention can be a wound-core type electrode assembly. In this case, an additional separator can be provided on the outer peripheral surface of the electrode assembly for insulation from the battery casing 20. The electrode assembly can include, but is not limited to, wound structures known in the art. Meanwhile, in this invention, the positive electrode active material coated on the positive electrode plate and the negative electrode active material coated on the negative electrode plate can be used without limitation, as long as they are active materials known in the art.

[0046] refer to Figure 1 and Figure 2 The battery casing 20 is a generally cylindrical container with an opening formed on one side, and is made of a conductive metallic material. The side surface and the lower surface opposite the opening of the battery casing 20 are typically formed as a single piece. That is, the battery casing 20 generally has an opening on its upper side in the height direction and a closed portion on its lower side. The lower surface of the battery casing 20 may have a generally flat shape. The battery casing 20 accommodates electrode assemblies through the opening formed on one side in the height direction. The battery casing 20 may also accommodate electrolyte through the opening.

[0047] The battery housing 20 may have a rib formed at an end adjacent to an opening located at the top of the battery housing 20. The battery housing 20 may also include a crimping portion formed on the rib. The rib has a shape in which the outer periphery of the battery housing 20 is recessed to a predetermined depth. More specifically, the rib may have a shape that is recessed inward in the region between the opening formed on one side of the battery housing 20 and the gas vent 300H accommodating the electrode assembly. The rib is formed on the upper part of the electrode assembly. The inner diameter of the battery housing 20 in the region where the rib is formed is smaller than the outer diameter of the electrode assembly. The rib provides a support surface for mounting the top cover 30. Additionally, the rib may provide a support surface on which at least a portion of the periphery of the current collector can be mounted and connected. That is, at least a portion of the periphery of the current collector and / or the periphery of the top cover 30 can be mounted on the upper surface of the rib. In order to stably support at least a portion of the periphery of the current collector and / or the periphery of the top cover 30, the upper surface of the rib may extend in a direction substantially parallel to the lower surface of the battery housing 20, that is, in a direction substantially perpendicular to the sidewall of the battery housing 20.

[0048] refer to Figure 3 The top cover 30 may be provided with a vent, which is configured to prevent an increase in internal pressure caused by gas generated inside the battery housing 20. The vent may be configured to rupture when the internal pressure of the battery housing 20 rises above a predetermined level. For example, the vent may be formed in a portion of the top cover 30 and may be a structurally weaker region than the surrounding area, so that it can rupture easily when internal pressure is applied. The vent may be, for example, a region with a reduced thickness compared to the surrounding area.

[0049] In other words, if a thermal event occurs inside the battery cell 100 for any reason, exhaust gas may be generated, and the internal pressure of the battery casing 20 may increase due to the exhaust gas. In this case, since the exhaust section is a structurally weaker area than the surrounding area and can easily rupture when the internal pressure of the battery cell 100 increases, the exhaust section may rupture when exhaust gas is generated.

[0050] In one aspect of the invention, the venting portion of the battery cell 100 may be disposed upward within the battery module 10. Therefore, when venting occurs, the gas emitted from the venting portion can be guided towards the upper side of the battery module 10.

[0051] In this configuration, the vent can be arranged to form a substantially circular closed loop. Therefore, when exhaust gas is released from inside the battery cell 100 and the top cover 30 is subjected to upward internal pressure, the vent can rupture, and the inner region of the circular closed loop of the top cover 30 can be torn away. This allows for smooth venting.

[0052] refer to Figure 1 and Figure 2 The module housing 200 can be configured to house the battery cell 100. Specifically, the module housing 200 may include a base plate 210, a side plate 220, and a top cover 230.

[0053] The substrate 210 can be configured to have a generally plate-like shape extending in the horizontal direction. The side plate 220 can be configured to have a generally plate-like shape extending in the vertical direction. In this case, for example, the substrate 210 and the side plate 220 can be joined together to form a lower housing. In this case, the substrate 210 and the side plate 220 can be configured to be detachably connected to each other. Alternatively, the substrate 210 and the side plate 220 can be configured as separate components.

[0054] refer to Figure 2 The upper cover 230 may be located on the upper part of the lower housing. The upper cover 230 may be configured to cover the upper part of the battery cell 100. For example, the upper cover 230 may be configured to have a generally horizontally extending plate shape. In one aspect of the invention, the upper cover 230 may be configured to be removable from the lower housing.

[0055] In another aspect of the invention, the top cover 230 may be configured to discharge exhaust gas. For example, the top cover 230 may be provided with at least one exhaust port 230H.

[0056] The vent 230H can be configured to discharge exhaust gas. That is, the vent 230H can be configured to have a hole shape that penetrates the upper cover 230 in the vertical direction. The vent 230H can be provided in a form that extends longer in one direction, for example, as shown... Figure 1 As shown. However, the shape of the vent 230H is not limited to this. Meanwhile, the vent 230H can be located in a region adjacent to the venting portion of the battery cell 100. For example, in a structure where the venting portion of the battery cell 100 faces upwards, the vent 230H can be located in a region above the venting portion.

[0057] This structure allows for the smooth discharge of high-temperature gases and flames generated inside the module. Multiple vent holes 230H can be formed in the top cover 230. For example, multiple vent holes 230H can be arranged along the arrangement of the battery cells 100. Furthermore, according to this structure, even when a large amount of gas is generated inside the battery module 10, the gas can be smoothly discharged to the outside of the battery module 10 through the multiple vent holes 230H. In other words, the residence time of the discharged gas within the module housing 200 can be minimized.

[0058] In another aspect of the invention, the vent 230H may include a mesh screen. According to this structure, the mesh screen can prevent sparks generated inside the battery cell 100 from being discharged to the outside of the battery cell 100. Furthermore, it can prevent the spread of fire to other battery modules 10 adjacent to the battery module 10 where a thermal event has already occurred.

[0059] Figure 4 This is a diagram showing the internal structure of a battery module 10 according to an embodiment of the present invention, and Figure 5 This is a plan view showing a battery module 10 according to an embodiment of the present invention, viewed from above.

[0060] refer to Figure 2 and Figure 4 The resin portion 300 can be disposed in the upper region of the interior space of the module housing 200. In this case, the resin portion 300 can be configured to surround the outer peripheral surface of the plurality of battery cells 100. The resin portion 300 can be located between the battery cells 100 and the module housing 200, thereby securing the battery cells 100 in place.

[0061] In one aspect of the invention, the resin portion 300 may be configured to guide gas discharged from the upper part of the battery cell 100 to the outside of the module housing 200. More specifically, see... Figure 2 The resin part 300 can penetrate along the height direction of the battery module 10.

[0062] The resin portion 300 may include a gas discharge portion 300H having a shape that conforms to the surface of the battery cell 100. For example, when the battery cell 100 is a cylindrical battery cell, the resin portion 300 may include at least one gas discharge portion 300H with a diameter substantially equal to the diameter of the battery cell 100. Preferably, the resin portion 300 may include a plurality of gas discharge portions 300H with diameters substantially the same as the diameter of the battery cell 100. For example, the resin portion 300 may include gas discharge portions 300H in a number corresponding to the number of battery cells 100. Specifically, one battery cell 100 may be housed within a single gas discharge portion 300H.

[0063] For example, the resin portion 300 can be configured as a block in a substantially cuboid shape. That is, the resin portion 300 can be configured as a block having a predetermined thickness in the height direction. Additionally, the resin portion 300 can be configured to separate a plurality of battery cells 100 from each other in the horizontal direction. For example, the resin portion 300 can be configured to fill the entire area between the battery cells 100.

[0064] In this case, the block may include a plurality of through holes extending therethrough in a cylindrical shape. In this case, the block corresponds to the body of the resin section 300, and the through holes correspond to the gas emission section 300H of the resin section 300.

[0065] According to this configuration, when the exhaust gas is discharged through the exhaust section provided at the top of the battery cell 100, the exhaust gas can be collected in the exhaust space of the gas discharge section 300H. In this case, since the diameter of the gas discharge section 300H matches the diameter of the battery cell 100, there is no gap between the resin section 300 and the battery cell 100. Therefore, the exhaust gas collected in the exhaust space cannot flow between the resin section 300 and the battery cell 100. Therefore, the exhaust gas cannot enter the lower region of the resin section 300. That is, the exhaust gas can only move towards the upper region of the resin section 300 and can eventually be discharged to the outside of the module housing 200 through the exhaust hole 230H provided in the top cover 230.

[0066] In another aspect of the invention, the gas discharge section 300H can be configured as a flow path. (See reference...) Figure 2 The gas emission section 300H can be configured to have a flow path extending along the height direction of the battery module 10. In this case, the flow path can have a structure that isolates it from adjacent flow paths and prevents them from communicating. That is, each gas emission section 300H has a structure that prevents the gas from communicating with another adjacent gas emission section 300H.

[0067] According to this configuration, when exhaust gas is emitted from one battery cell 100, the exhaust gas only flows into the corresponding gas emission section 300H and does not flow into the gas emission section of another adjacent battery cell 100. Therefore, according to the present invention, heat transfer to adjacent battery cells 100 can be effectively prevented.

[0068] In another aspect of the invention, at least a portion of the battery cell 100 may be housed within the gas emission portion 300H of the resin portion 300.

[0069] For example, refer to Figure 4The upper end of the battery cell 100 can be positioned in the region between the upper and lower surfaces of the resin portion 300. That is, when the battery module 10 is viewed from the side, the upper end of the battery cell 100 can be located between the upper and lower surfaces of the resin portion 300. According to this configuration, an exhaust space can be formed between the gas discharge portion 300H and the top cover 230. The exhaust space has a structure that does not communicate with the exhaust space of another adjacent gas discharge portion 300H. More specifically, the upper surface of the resin portion 300 can be configured to contact the top cover 230 of the module housing 200. Therefore, the exhaust gas discharged into the exhaust space moves upward along the gas discharge portion 300H, is guided in the height direction, and upon reaching the top cover 230 of the module housing 200, the exhaust gas is finally discharged to the outside of the module housing 200 through the exhaust port 230H provided in the top cover 230.

[0070] Therefore, in the event of a thermal event occurring in one of the multiple battery cells 100 housed in the battery module 10 and the release of exhaust gases, the propagation of the high-temperature exhaust gases and / or flames to adjacent battery cells 100 can be effectively prevented. Thus, the present invention can prevent minor thermal events from gradually escalating into thermal runaway.

[0071] In one aspect of the invention, the gas emission section 300H may be at least partially covered by the top cover 230.

[0072] For example, refer to Figure 4 and Figure 5 The upper cover 230 can be configured to cover the upper surface of the gas discharge section 300H. In this case, the upper cover 230 can be configured to directly contact the upper surface of the gas discharge section 300H. Additionally, the gas discharge section 300H can be configured to communicate with the exhaust port 230H.

[0073] According to this configuration, the exhaust gas guided into the gas discharge section 300H can be discharged directly towards the exhaust port 230H. In other words, according to this configuration, the exhaust gas guided into the gas discharge section 300H can be structurally prevented from re-entering the other battery cell 100.

[0074] Refer again Figure 5 The gas emission section 300H and the exhaust port 230H may include a first region S1 configured to communicate with each other. Simultaneously, the gas emission section 300H and the exhaust port 230H may have a second region S2 configured to overlap each other.

[0075] Specifically, the top cover 230 can be configured to make surface contact with the upper surface of the resin section 300. In this case, the vent 230H provided in the top cover 230 can be configured to at least partially overlap with the gas emission section 300H. For example, in the first region S1, the vent 230H of the top cover 230 and the gas emission section 300H of the resin section 300 can have a structure that allows communication between them. Therefore, the emitted gas can be smoothly discharged to the outside of the battery module 10 through the first region S1.

[0076] Meanwhile, in the second region S2, the plate structure of the upper cover 230 can be configured to physically block the gas emission section 300H of the resin section 300. Therefore, separation of the resin section 300 from the module housing 200 can be effectively prevented. Furthermore, according to the above structure, displacement of the battery cell 100 in the upward direction can be prevented. In other words, the plate structure of the upper cover 230 prevents the battery cell 100 and the resin section 300 from moving out of the module housing 200.

[0077] According to the structure described above, the exhaust gas emitted from the battery cell 100 can be effectively discharged to the outside of the battery module 10, while preventing the battery cell 100 from detaching from or coming off the battery module 10.

[0078] In one aspect of the invention, the battery module 10 may include a resin support configured to support the resin portion 300 from below. Alternatively, in another embodiment, the resin portion 300 may be configured to bond the module housing 200 and the battery cell 100 together by injection between the inner surface of the module housing 200 and the outer surface of the battery cell 100, without requiring a separate resin support.

[0079] Furthermore, the applicable structure of the resin part 300 of the present invention can be applied not only to top exhaust structures but also to bottom exhaust structures.

[0080] For example, the resin portion 300 of the present invention can also be applied to a structure in which the venting portion of the battery cell 100 is arranged facing downwards rather than upwards towards the battery module 10. In this case, since venting is performed in the lower region of the battery module 10, the venting portion of the battery cell 100 can also be provided in the lower region of the battery module 10. Alternatively, the resin portion 300 can be provided in a region adjacent to the region where the venting portion is located. In this case, the resin portion 300 can be configured to extend downwards towards the battery module 10. In this bottom venting structure, the venting hole 230H of the battery module 10 can be provided on the substrate 210 of the battery module 10. That is, the present invention is not limited to... Figures 1 to 5 The top exhaust structure shown can also be applied to a bottom exhaust structure that performs exhaust downwards.

[0081] In another aspect of the invention, the resin portion 300 may include a thermally conductive material. That is, the resin portion 300 can transfer heat generated from the battery cell 100 to the outside.

[0082] Depending on the structure provided in the upper or lower region of the internal space of the module housing 200, since the resin portion 300 is only housed in a portion of the internal space of the module housing 200, the curing time of the resin portion 300 can be shortened. For example, if the amount of resin portion 300 is large, curing may take a long time, thereby reducing work efficiency. However, according to the present invention, since the resin portion 300 is only provided in the upper or lower region of the internal space of the module housing 200, the required amount of resin portion 300 can be kept relatively small. Therefore, the time required for curing can be significantly reduced, thereby improving work efficiency. In addition, it facilitates handling during the manufacturing process of the battery module 10.

[0083] Meanwhile, the resin portion 300 can be formed by curing liquid resin. This structure effectively covers the surface of the battery cell 100. Therefore, the contact area between the battery cell 100 and the resin portion 300 can be maximized. Consequently, heat dissipation efficiency can also be maximized.

[0084] Figure 6 It shows including Figure 1 The diagram shows the battery module 10 and the battery pack 3.

[0085] Reference Figure 6 The battery pack 3 according to the present invention may include at least one battery module 10 as described above. Furthermore, the battery pack 3 according to the present invention may include a battery pack housing 50 configured to house at least one battery module 10. In addition to the battery module 10, it may also include various other components, such as components of the battery pack 3 known at the time of filing of this application, such as a BMS, battery pack housing, relays, and current sensors.

[0086] Figure 7 It shows including Figure 6 The image shows the battery pack 3 of vehicle 5.

[0087] Reference Figure 7The vehicle 5 according to the present invention may include at least one battery pack 3 according to the present invention. The battery module 10 according to the present invention can be applied to the vehicle 5, such as an electric vehicle 5 or a hybrid vehicle 5. That is, the vehicle 5 according to the present invention may include the battery module 10 or the battery pack 3 according to the present invention. In addition to the battery module 10 or the battery pack 3, the vehicle 5 according to the present invention may also include various other components included in the vehicle 5. For example, in addition to the battery module 10, the vehicle 5 according to the present invention may also include a body, a motor, and a control device (e.g., an ECU (electronic control unit)).

[0088] At the same time, although terms indicating directions such as up and down are used in this specification, it will be obvious to those skilled in the art that these terms are only for ease of interpretation and can vary depending on the position of the target object or the position of the observer.

[0089] Although the invention has been described with reference to limited embodiments and accompanying drawings, the invention is not limited thereto, and it should be understood that those skilled in the art can make various modifications and variations within the spirit of the invention and within the scope of the appended claims and their equivalents.

[0090] Figure Labels

[0091] 5 vehicles

[0092] 3 Battery Pack

[0093] 50 Battery pack casing

[0094] 10 Battery Modules

[0095] 200 Lower housing

[0096] 210 substrate

[0097] 220 side panel

[0098] 230 Upper Shell

[0099] 230H exhaust port

[0100] 300 Resin Section

[0101] 300H Gas Emission Section

[0102] S1 First Area

[0103] S2 Second Area

Claims

1. A battery module, the battery module comprising: Multiple battery cells; A module housing configured to accommodate the plurality of battery cells; as well as A resin section is disposed in the upper region of the internal space of the module housing, configured to surround the outer peripheral surface of the plurality of battery cells, and configured to guide gas emitted from the upper part of the battery cells to the outside of the module housing.

2. The battery module according to claim 1, wherein, The venting section of the battery cell is positioned upwards within the battery module.

3. The battery module according to claim 1, wherein, The top cover of the module housing is provided with at least one vent hole.

4. The battery module according to claim 3, wherein, The resin section includes a gas emission section that extends along the height direction of the battery module and has a shape that conforms to the surface of the battery cell.

5. The battery module according to claim 4, in, The gas emission section is configured in the form of a flow path.

6. The battery module according to claim 4, wherein, At least a portion of the battery cell is housed within the gas emission section of the resin section.

7. The battery module according to claim 1, wherein, The upper end of the battery cell is configured to be located in the region between the upper and lower surfaces of the resin portion.

8. The battery module according to claim 4, in, An exhaust space is formed between the gas discharge section and the upper cover.

9. The battery module according to claim 4, wherein, At least a portion of the gas emission section is covered by the top cover.

10. The battery module according to claim 4, wherein, The gas emission section is configured to communicate with the exhaust port.

11. The battery module according to claim 4, in, The gas emission section and the exhaust port have a first region configured to communicate with each other.

12. The battery module according to claim 11, in, The gas emission section and the exhaust port have a second region that is configured to overlap each other.

13. The battery module according to claim 1, wherein, The battery module includes a resin support portion that supports the resin portion from below.

14. A battery pack comprising at least one battery module according to any one of claims 1 to 13.

15. A vehicle comprising at least one battery pack according to claim 14.