Battery pack and vehicle comprising same

Abstract

A battery pack and a vehicle comprising same are disclosed. The battery pack according to one embodiment of the present invention comprises: battery module s provided with a plurality of battery cells; a pack case in which a plurality of the battery modules are accommodated; and a cooling member accommodated in the pack case and configured to be in contact with the plurality of battery modules, wherein some of the plurality of battery modules are in contact with one side surface of the cooling member and the remainder of the plurality of battery modules are in contact with the other side surface of the cooling member.

Description

Battery pack and automobile including the same

[0001] This application is a priority application for Korean Patent Application No. 10-2024-0194401 filed on December 23, 2024, and all contents disclosed in the specification and drawings of said application are incorporated into this application by reference.

[0002] The present invention relates to a battery pack and an automobile including the same, and more specifically, to a battery pack capable of improving cooling efficiency and an automobile including the same.

[0003] Generally, a secondary battery refers to a battery capable of repeated charging and discharging, such as lithium-ion batteries, lithium-polymer batteries, nickel-cadmium batteries, nickel-hydrogen batteries, and nickel-zinc batteries. The battery cells corresponding to the most basic secondary batteries can provide an output voltage of approximately 2.5V to 4.2V.

[0004] Recently, as these battery cells are applied to devices requiring high output voltage and large charging capacity, such as electric vehicles or Energy Storage Systems (ESS), battery modules configured by connecting multiple battery cells in series, parallel, or a combination of series and parallel, and battery packs configured by connecting these battery modules again in series, parallel, or a combination of series and parallel are widely used.

[0005] Lithium secondary batteries are currently in the spotlight due to their advantages, such as high operating voltage and significantly higher energy density, but because they use organic electrolytes, if the lithium secondary battery is overcharged, it causes overcurrent and overheating, which in severe cases can lead to explosions or fires caused by ignition.

[0006] Various types of secondary batteries may include a battery module in which a plurality of battery cells are stacked and inserted into a module case equipped with a module case capable of protecting the battery cells, and a battery pack containing a plurality of battery modules.

[0007] The battery pack includes a pack case, and a plurality of battery modules are arranged inside the pack case. Additionally, the battery modules may be configured to come into contact with a cooling plate for cooling.

[0008] However, in the case of conventional technology, since the battery module is coupled to contact only the upper side of the cooling plate, there is a problem of reduced cooling efficiency.

[0009] Accordingly, the technical problem that the present invention aims to solve is to provide a battery pack capable of improving cooling efficiency by having a plurality of battery modules contact one side and the other side of a cooling member, respectively, and an automobile including the same.

[0010] In addition, the invention provides a battery pack capable of preventing the occurrence of thermal events such as fire by improving the cooling efficiency of the battery module, and a vehicle including the same.

[0011] In addition, the invention provides a battery pack capable of ensuring the stability of the battery module and battery pack by preventing the occurrence of fire, and a vehicle including the same.

[0012] However, the technical problems that the present invention aims to solve are not limited to those described above, and other unmentioned problems will be clearly understood by those skilled in the art from the description of the invention below.

[0013] According to one aspect of the present invention, a battery pack may be provided comprising: a battery module having a plurality of battery cells; a pack case in which a plurality of battery modules are housed; and a cooling member housed in the pack case and in contact with a plurality of battery modules, wherein some of the plurality of battery modules are in contact with one side of the cooling member and the remainder of the plurality of battery modules are in contact with the other side of the cooling member.

[0014] In one embodiment, the cooling member may include a cooling plate to which a plurality of the battery modules are in contact; and a refrigerant flow path formed on the inner side of the cooling plate.

[0015] In one embodiment, some of the battery modules among the plurality of battery modules may be coupled to the upper side of the cooling plate, and the remaining battery modules may be coupled to the lower side of the cooling plate.

[0016] In one embodiment, the battery module includes a module case in which the plurality of battery cells are housed, and the module case includes an upper module case and a lower module case, wherein the lower module case may be larger than the upper module case.

[0017] In one embodiment, the lower module case has a protrusion formed therein that protrudes further in at least one of the left and right sides than the upper module case, and a first coupling hole is formed in the protrusion to which a fastening member is coupled, and a second coupling hole may be formed in the cooling member at a position corresponding to the first coupling hole.

[0018] In one embodiment, a partition wall is formed in the cooling member to partition the battery module, and each of the plurality of battery modules is disposed inside the partition wall and can come into contact with the cooling member.

[0019] In one embodiment, the partition wall may include an upper partition wall formed on the upper side of the cooling member and a lower partition wall formed on the lower side of the cooling member.

[0020] In one embodiment, the partition wall is formed to protrude from the cooling member, and the partition wall includes a first partition wall and a second partition wall disposed adjacent to the first partition wall, and any one of the plurality of battery modules may be disposed between the first partition wall and the second partition wall.

[0021] In one embodiment, the battery module is sandwiched and coupled between the first partition wall and the second partition wall, and the first partition wall and the second partition wall may be configured to guide the movement of the battery module.

[0022] In one embodiment, the battery module includes a module case in which the plurality of battery cells are housed, and the module case includes an upper module case and a lower module case, wherein the lower module case has a protrusion formed therein that protrudes further in at least one of the left and right sides than the upper module case, and the protrusion can be welded while in contact with the partition wall.

[0023] In one embodiment, among the plurality of battery modules, the battery module disposed between the upper partition walls and the battery module disposed between the lower partition walls may be disposed symmetrically with respect to each other.

[0024] In one embodiment, the battery module includes a module case in which the plurality of battery cells are housed, and the module case includes an upper module case and a lower module case, wherein the lower module case has a protrusion formed therein that protrudes further in at least one of the left and right sides than the upper module case, and the partition wall has a guide groove or guide projection formed along the partition wall, and the protrusion may have a guide projection or guide groove formed to correspond to the guide groove or guide projection so as to be coupled to and slide with the guide groove or guide projection of the partition wall.

[0025] In one embodiment, the refrigerant flow path includes an inlet and an outlet, and the inlet and the outlet may each be formed in opposite directions of the cooling plate.

[0026] In one embodiment, a partition wall for partitioning the battery module is formed in the cooling member, and each of the plurality of battery modules is disposed inside the partition wall and contacts the cooling member, and the inlet and the outlet may be formed in the partition wall.

[0027] In one embodiment, the refrigerant flow path may include a first flow path disposed inside the partition wall along the partition wall; and a second flow path extending from the first flow path toward the battery cell.

[0028] Meanwhile, according to another aspect of the present invention, a vehicle comprising at least one of the aforementioned battery packs may be provided.

[0029] Embodiments of the present invention have the effect of improving cooling efficiency by having a plurality of battery modules contact one side and the other side of a cooling member, respectively.

[0030] In addition, it has the effect of improving the cooling efficiency of the battery module, thereby preventing the occurrence of thermal events such as fires.

[0031] In addition, it has the effect of ensuring the stability of battery modules and battery packs by preventing the occurrence of fire.

[0032] However, the effects obtainable through the present invention are not limited to those described above, and other unmentioned technical effects will be clearly understood by those skilled in the art from the description of the invention below.

[0033] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings.

[0034] FIG. 1 is a combined perspective view of a battery pack according to one embodiment of the present invention.

[0035] FIG. 2 is an exploded perspective view of a battery pack according to one embodiment of the present invention.

[0036] Figure 3 is a view taken along direction A of Figure 2.

[0037] FIG. 4 is a perspective view of a battery module separated from a cooling member in a battery pack according to one embodiment of the present invention.

[0038] FIGS. 5 and FIGS. 6 are drawings illustrating the process of a battery module being coupled to the upper and lower sides of a cooling member, respectively.

[0039] FIGS. 7 and FIGS. 8 are drawings illustrating modified embodiments of FIGS. 5 and FIGS. 6.

[0040] FIG. 9 is a drawing illustrating a refrigerant flow path formed in a cooling plate in a battery pack according to one embodiment of the present invention.

[0041] FIGS. 10 and FIGS. 11 are drawings illustrating a refrigerant flow path formed in a cooling plate according to a modified embodiment of FIGS. 9.

[0042] FIG. 12 is a drawing illustrating a vehicle including a battery pack according to each embodiment of the present invention.

[0043] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. Accordingly, the embodiments described in this specification and the configurations illustrated in the drawings are merely one preferred embodiment of the present invention and do not represent all aspects of the technical spirit of the present invention; therefore, it should be understood that various equivalents and modifications capable of replacing them may exist at the time of filing this application.

[0044] In the drawings, the size of each component or specific part constituting the component is exaggerated, omitted, or schematically depicted for convenience and clarity of explanation. Accordingly, the size of each component does not entirely reflect its actual size. If it is determined that a detailed description of related known functions or configurations could unnecessarily obscure the essence of the invention, such description shall be omitted.

[0045] As used in this specification, the terms "combination" or "connection" include not only cases where one member and another member are directly joined or directly connected, but also cases where one member is indirectly joined or indirectly connected to another member through a connecting member.

[0046] Meanwhile, contents common to parts described in any one embodiment of the present invention may also be applied to other embodiments. For example, contents common to parts described in the first embodiment of the second embodiment may be replaced by the description of the first embodiment described above, and such common contents may also be applied to the second embodiment. Furthermore, contents described in the second embodiment that are applicable to the first embodiment may also be applied to the first embodiment. The same applies to other embodiments.

[0047] FIG. 1 is a combined perspective view of a battery pack according to an embodiment of the present invention, FIG. 2 is a separated perspective view of a battery pack according to an embodiment of the present invention, FIG. 3 is a view taken along direction A of FIG. 2, FIG. 4 is a perspective view of a battery module separated from a cooling member in a battery pack according to an embodiment of the present invention, FIG. 5 and FIG. 6 are drawings illustrating the process of a battery module being combined to the upper and lower sides of a cooling member, respectively, FIG. 7 and FIG. 8 are drawings illustrating modified embodiments of FIG. 5 and FIG. 6, FIG. 9 is a drawing illustrating a refrigerant flow path formed in a cooling plate in a battery pack according to an embodiment of the present invention, FIG. 10 and FIG. 11 are drawings illustrating a refrigerant flow path formed in a cooling plate according to a modified embodiment of FIG. 9.

[0048] Referring to FIGS. 1 and 2, a battery pack (10) according to one embodiment of the present invention includes a battery module (100), a pack case (200), and a cooling member (300).

[0049] A plurality of battery modules (100) are provided and arranged in various ways. For example, as shown in FIG. 2, they may be arranged in horizontal and vertical directions, but are not limited thereto.

[0050] The battery module (100) may include a plurality of battery cells (110) and a module case (120).

[0051] A plurality of battery cells (110) can be configured to be stacked. The battery cells (110) can have various structures, and additionally, the plurality of battery cells (110) can be stacked in various ways.

[0052] The battery cell (110) may have a structure in which a plurality of unit cells arranged in the order of positive plate-separator-negative plate or bi-cells arranged in the order of positive plate-separator-negative plate-separator-positive plate-separator-negative plate are stacked according to the battery capacity.

[0053] The battery cell (110) may be provided with electrode leads. The electrode leads may be made of a conductive material and serve as a type of terminal that is exposed to the outside and connected to an external device. The electrode leads may include a positive electrode lead and a negative electrode lead.

[0054] The positive electrode lead and the negative electrode lead may be positioned in opposite directions with respect to the longitudinal direction of the battery cell (110), or the positive electrode lead and the negative electrode lead may be positioned in the same direction with respect to the longitudinal direction of the battery cell (110).

[0055] Referring to FIG. 2, a plurality of battery cells (110) are housed in a module case (120). The module case (120) surrounds the plurality of battery cells (110) and thereby protects the battery cells (110) from external vibrations or shocks.

[0056] The module case (120) may be formed in a shape corresponding to the stacked shape of the plurality of battery cells (110). For example, if the stacked shape of the plurality of battery cells (110) is formed in a cuboid shape, the module case (120) may also be provided in a cuboid shape corresponding to this. However, it is not limited thereto.

[0057] Here, the module case (120) may include an upper module case (121), a lower module case (122), and a side module case (123). And, for example, the upper module case (121) of the module case (120) may be formed in a rectangular shape.

[0058] Additionally, the module case (120) can be manufactured, for example, by bending a metal plate, and thereby the module case (120) can be manufactured as a single unit.

[0059] When the module case (120) is manufactured as a single unit, the joining process becomes simpler and easier. Alternatively, the module case (120) may be provided as a separate unit and joined by welding or the like. However, the material of the module case (120) is not limited to metal.

[0060] Referring to FIG. 4, the lower module case (122) may be formed larger than the upper module case (121). For example, the lower module case (122) may have a protrusion (125) formed that protrudes further in at least one of the left and right sides than the upper module case (121), thereby allowing the lower module case (122) to be formed larger than the upper module case (121).

[0061] For convenience of explanation, the following description focuses on the case where protrusions (125) are formed on both the left and right sides of the lower module case (122).

[0062] Additionally, a first coupling hole (127) into which a fastening member (400) is coupled may be formed in the protrusion (125). Furthermore, a second coupling hole (317) may be formed in the cooling plate (310) of the cooling member (300) at a position corresponding to the first coupling hole (127).

[0063] As shown in FIG. 2, when the battery module (100) is inserted into the cooling plate (310), a fastening member (400), such as a screw, bolt, and nut, can be coupled to the first coupling hole (127) and the second coupling hole (317) to secure the battery module (100) to the cooling plate (310).

[0064] Referring to FIG. 2, a plurality of battery modules (100) are housed in a pack case (200). The pack case (200) may be configured to include, for example, an upper pack case (210), a lower pack case (220), and a side pack case (230).

[0065] Referring to FIG. 2, a cooling member (300) is housed in a pack case (200) and a plurality of battery modules (100) are in contact. Here, some of the plurality of battery modules (100) are in contact with one side of the cooling member (300), and the remainder of the plurality of battery modules (100) are in contact with the other side of the cooling member (300).

[0066] For example, some of the battery modules (100) among the plurality of battery modules (100) may be in contact with the upper side of the cooling plate (310) of the cooling member (300), and the remaining battery modules (100) among the plurality of battery modules (100) may be in contact with the lower side of the cooling plate (310) of the cooling member (300).

[0067] Referring to FIGS. 2 and 3, four battery modules (100) are in contact with the upper side of the cooling member (300) and four other battery modules (100) are in contact with the lower side of the cooling member (300), but this is merely one embodiment and the number of battery modules (100) in contact with the cooling member (300) may vary.

[0068] Referring to FIG. 9, the cooling member (300) may include a cooling plate (310) and a refrigerant flow path (320). A plurality of battery modules (100) are configured to come into contact with the cooling plate (310) as in FIG. 2 and FIG. 3.

[0069] And, the refrigerant passage (320) is formed on the inner side of the cooling plate (310) and is configured to allow various types of refrigerants to move.

[0070] Referring to FIG. 9, the refrigerant passage (320) may include an inlet (321) and an outlet (322). That is, an inlet (321) and an outlet (322) may be formed in the cooling plate (310). Here, the inlet (321) and the outlet (322) may be formed in various parts of the cooling plate (310), for example, they may be formed in opposite directions of the cooling plate (310).

[0071] That is, the refrigerant introduced through the inlet (321) can be discharged outside the cooling plate (310) through the outlet (322) formed in the opposite direction. Also, the refrigerant flow path (320) is formed in a bent shape.

[0072] In this way, when the inlet (321) and the outlet (322) are formed on opposite sides of the cooling plate (310), the temperature variation of the battery module (100) is reduced compared to the case where the inlet (321) and the outlet (322) are both formed on the same side of the cooling plate (310).

[0073] Referring to FIG. 10 as a modified embodiment of FIG. 9, an inlet (321) and an outlet (322) are formed on opposite sides of the cooling plate (310), respectively, and a refrigerant flow path (320) is formed in a straight line.

[0074] In this way, when the refrigerant flow path (320) is formed in a straight shape, the speed of movement of the refrigerant increases, and the temperature difference between the inlet (321) and the outlet (322) is not large. If the temperature difference of the refrigerant is not large, the temperature can be maintained uniformly for multiple battery modules (100).

[0075] Referring to FIG. 11 as a modified embodiment of FIG. 9, a partition wall (311) may be formed in the cooling plate (310). In addition, an inlet (321) and an outlet (322) may be formed in the partition wall (311). A detailed description of the partition wall (311) will be provided later.

[0076] Here, the refrigerant path (320) may include a first path (323) and a second path (324). The first path (323) is positioned inside the partition wall (311) along the partition wall (311). The second path (324) extends from the first path (323) toward the battery cell (110). This structure has the effect of enabling uniform cooling of the battery module (100).

[0077] Referring to FIG. 4, a partition wall (311) for partitioning a battery module (100) may be formed on the cooling plate (310) of the cooling member (300). Also, referring to FIG. 2 and FIG. 6 together, each of the plurality of battery modules (100) may be placed inside the partition wall (311) and come into contact with the cooling plate (310) of the cooling member (300).

[0078] Here, the partition wall (311) may be formed to protrude from the cooling plate (310) of the cooling member (300). Referring to FIGS. 5 and 6, the partition wall (311) may include a first partition wall (312) and a second partition wall (313) disposed adjacent to the first partition wall (312), in which case any one of the plurality of battery modules (100) may be disposed between the first partition wall (312) and the second partition wall (313).

[0079] Referring to FIGS. 5 and 6, the battery module (100) can be sandwiched and coupled between the first partition wall (312) and the second partition wall (313). In this case, the first partition wall (312) and the second partition wall (313) can be configured to guide the movement of the battery module (100).

[0080] As described above, a protrusion (125) may be formed in the lower module case (122) that protrudes further in at least one of the left and right sides than the upper module case (121), and thereby the lower module case (122) may be formed larger than the upper module case (121).

[0081] And, referring to FIG. 5, a protrusion (125) formed on the lower module case (122) of the battery module (100) is inserted between the first partition wall (312) and the second partition wall (313), and then when the battery module (100) is pressed, the protrusion (125) of the lower module case (122) moves along the first partition wall (312) and the second partition wall (313) and can be inserted as shown in FIG. 6.

[0082] Here, as described above, when the battery module (100) is inserted into the cooling plate (310), a fastening member (400), such as a screw, bolt, and nut, can be coupled to a first coupling hole (127, see FIG. 4) formed in the protrusion (125) and a second coupling hole (317, see FIG. 4) formed in the cooling plate (310) to fix the battery module (100) to the cooling plate (310).

[0083] Alternatively, the protrusion (125) of the lower module case (122) may be joined by welding while in contact with the first partition wall (312) and the second partition wall (313) of the cooling plate (310).

[0084] Alternatively, the protrusion (125) of the lower module case (122) may be fixed to the cooling plate (310) by a fastening member (400) such as a bolt and nut and then joined by welding.

[0085] That is, in a battery pack (10) according to one embodiment of the present invention, the battery module (100) and the cooling plate (310) may be fixed only by the fastening member (400), or the battery module (100) and the cooling plate (310) may be fixed only by welding, or the battery module (100) and the cooling plate (310) may be fixed completely by joining them by welding after fastening them through the fastening member (400).

[0086] Referring to FIG. 4, the partition wall (311) may include an upper partition wall (311a) formed on the upper side of the cooling plate (310) of the cooling member (300) and a lower partition wall (311b) formed on the lower side of the cooling plate (310) of the cooling member (300).

[0087] Also, referring to FIG. 3, among the plurality of battery modules (100), the battery module (100) positioned between the upper partition walls (311a) and the battery module (100) positioned between the lower partition walls (311b) may be positioned symmetrically with respect to each other. However, it is not limited thereto.

[0088] Referring to FIGS. 7 and 8, a guide groove (315) or a guide projection (not shown) may be formed along the partition wall (311). Additionally, a guide projection (129) or a guide groove (not shown) may be formed on the protrusion (125) to correspond to the guide groove (315) or guide projection (not shown) of the partition wall (311) so as to be coupled to and slide along the guide groove (315) or guide projection (not shown) of the partition wall (311).

[0089] That is, in FIGS. 7 and 8, a guide groove (315) is formed in the partition wall (311), and a guide projection (129) is formed in the protrusion (125). The guide projection (129) of the protrusion (125) is coupled to the guide groove (315) of the partition wall (311) and slides, allowing the battery module (100) to be inserted into the cooling plate (310).

[0090] In this way, when a guide groove (315) is formed in the partition wall (311) and a guide projection (129) is formed in the protrusion (125), the battery module (100) can be easily inserted and seated on the cooling plate (310).

[0091] However, in a modified embodiment, a guide projection (not shown) may be formed on the partition wall (311), and a guide groove (not shown) may be formed on the protrusion (125).

[0092] Embodiments of the present invention have the effect of improving cooling efficiency by having a plurality of battery modules (100) each contact one side and the other side of a cooling member (300).

[0093] In addition, it has the effect of improving the cooling efficiency of the battery module (100) to prevent the occurrence of thermal events such as fire.

[0094] In addition, it has the effect of ensuring the stability of the battery module (100) and battery pack (10) by preventing the occurrence of fire.

[0095] In addition, the area of ​​the cooling plate (310) and the length of the refrigerant flow path (320) can be reduced to decrease the temperature difference between the inlet (321) and the outlet (322).

[0096] In addition, since both the upper and lower sides of the cooling plate (310) are used to cool the battery module (100), the cooling efficiency can be improved.

[0097] FIG. 12 is a drawing illustrating a vehicle including a battery pack according to each embodiment of the present invention.

[0098] Referring to FIG. 12, a vehicle (20) according to one embodiment of the present invention may include one or more battery packs (10) according to each embodiment of the present invention. Here, the vehicle (20) includes various vehicles configured to use electricity, such as, for example, an electric vehicle or a hybrid vehicle.

[0099] In this specification, where terms indicating directions such as up, down, left, and right are used, these terms are used merely for convenience of explanation, and it is obvious to those skilled in the art that they may vary depending on the location of the object or the position of the observer.

[0100] Although the present invention has been described above by means of limited embodiments and drawings, the present invention is not limited thereto, and it is obvious that various modifications and variations are possible within the scope of the technical spirit of the present invention and the equivalent scope of the claims set forth below by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed above should be considered in an illustrative rather than a restrictive sense. That is, the scope of the true technical spirit of the present invention is indicated in the claims, and all variations within the equivalent scope thereof should be interpreted as being included in the present invention.

[0101] The present invention relates to a battery pack and an automobile including the same, and is particularly applicable to industries related to secondary batteries.

Claims

1. A battery module equipped with multiple battery cells; A pack case in which a plurality of the above-mentioned battery modules are housed; and It includes a cooling member that is housed in the above-mentioned pack case and contacts a plurality of the above-mentioned battery modules, and A battery pack characterized in that some of the plurality of battery modules are in contact with one side of the cooling member, and the remainder of the plurality of battery modules are in contact with the other side of the cooling member.

2. In Paragraph 1, The above cooling member is, A cooling plate in which a plurality of the above-mentioned battery modules are in contact; and A battery pack characterized by including a refrigerant passage formed on the inner side of the cooling plate.

3. In Paragraph 2, A battery pack characterized in that some of the plurality of battery modules are coupled to the upper side of the cooling plate, and the remaining battery modules are coupled to the lower side of the cooling plate.

4. In Paragraph 1, The above battery module includes a module case in which the plurality of battery cells are housed, and The above module case includes an upper module case and a lower module case, and A battery pack characterized in that the lower module case is larger than the upper module case.

5. In Paragraph 4, The lower module case has a protrusion formed therein that protrudes further in at least one of the left and right sides than the upper module case, and A first coupling hole is formed in the above-mentioned protrusion to which a fastening member is coupled, and A battery pack characterized in that a second coupling hole is formed in the cooling member at a position corresponding to the first coupling hole.

6. In Paragraph 1, A partition wall for partitioning the battery module is formed in the above cooling member, and A battery pack characterized in that each of the plurality of battery modules is disposed inside the partition wall and comes into contact with the cooling member.

7. In Paragraph 6, A battery pack characterized in that the above partition wall includes an upper partition wall formed on the upper side of the cooling member and a lower partition wall formed on the lower side of the cooling member.

8. In Paragraph 6, The above partition wall is formed to protrude from the cooling member, and The above partition wall includes a first partition wall and a second partition wall disposed adjacent to the first partition wall, and A battery pack characterized in that one of the plurality of battery modules is disposed between the first partition wall and the second partition wall.

9. In Paragraph 8, A battery pack characterized in that the battery module is coupled by being sandwiched between the first partition wall and the second partition wall, and the first partition wall and the second partition wall are configured to guide the movement of the battery module.

10. In Paragraph 6, The above battery module includes a module case in which the plurality of battery cells are housed, and The above module case includes an upper module case and a lower module case, and The lower module case has a protrusion formed therein that protrudes further in at least one of the left and right sides than the upper module case, and A battery pack characterized by the above-mentioned protrusion being welded while in contact with the above-mentioned partition wall.

11. In Paragraph 7, A battery pack characterized in that, among the plurality of battery modules, the battery module disposed between the upper partition walls and the battery module disposed between the lower partition walls are disposed symmetrically with respect to each other.

12. In Paragraph 6, The above battery module includes a module case in which the plurality of battery cells are housed, and The above module case includes an upper module case and a lower module case, and The lower module case has a protrusion formed therein that protrudes further in at least one of the left and right sides than the upper module case, and A battery pack characterized in that a guide groove or guide projection is formed along the partition wall, and a guide projection or guide groove is formed in the protrusion so as to be coupled to and slide with the guide groove or guide projection of the partition wall.

13. In Paragraph 2, The above refrigerant flow path includes an inlet and an outlet, A battery pack characterized in that the inlet and the outlet are each formed in opposite directions to the cooling plate.

14. In Paragraph 13, A partition wall for partitioning the battery module is formed in the above cooling member, and Each of the plurality of battery modules is disposed inside the partition wall and comes into contact with the cooling member, and A battery pack characterized in that the inlet and the outlet are formed in the partition wall.

15. In Paragraph 14, The above refrigerant flow path is, A first fluid path disposed within the partition wall along the partition wall; and A battery pack characterized by including a second path extending from the first path toward the battery cell.

16. An automobile comprising at least one battery pack according to any one of paragraphs 1 to 15.

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