CN216161888U - Battery module - Google Patents

Abstract

The utility model belongs to the technical field of the battery technique and specifically relates to a battery module is related to, and battery module includes: first group's electric core module, first group's electric core module include along the first direction at least two electric core module sections of arranging in order, and every electric core module section of first group's electric core module all is formed with the first portion of holding that is used for holding a plurality of electric cores of arranging in order. The application provides a battery module can prolong or shorten the length of this battery module through the use quantity of increase and decrease electric core module section, and then can realize increasing and decreasing the quantity of electric core correspondingly along with the dimensional change of battery module for this battery module has stronger commonality and practicality, can satisfy not equidimension power supply demand, has stronger practicality, and be favorable to standardized spare part, reduction in production, use cost shorten development cycle.

Description

Battery module

Technical Field

The application relates to the technical field of batteries, in particular to a battery module.

Background

At present, current electric core module often carries out the pertinence design according to the structure of battery package, does not have the commonality, and when the size of battery package or structure change, the quantity of electric core will also change, and original electric core module just can't continue to use, need design corresponding specification again in order to match with the battery package, and the electric core of original electric core module has not reached life yet, causes the waste of certain degree.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a battery module to it is fixed to solve current electric core module size, the electric core quantity that exists among the prior art to a certain extent, can't increase and decrease the electric core quantity to the battery package of unidimensional not, leads to electric core module not to have the technical problem of commonality.

The application provides a battery module, include:

the battery comprises a first group of battery cell modules, wherein the first group of battery cell modules comprise at least two battery cell module sections which are arranged in sequence along a first direction, each battery cell module section of the first group of battery cell modules is provided with a first accommodating part for accommodating a plurality of battery cells which are arranged in sequence, and the distance between the battery cell module sections which are adjacent in the first group of battery cell modules is greater than 0.

In the foregoing technical solution, further, the battery module includes at least one second battery cell module, and the first battery cell module and the at least one second battery cell module are arranged side by side along a second direction perpendicular to the first direction;

the second group battery cell module includes along two at least battery cell module sections that first direction was arranged in order, every battery cell module section of the second group battery cell module all is formed with the second portion of holding that holds a plurality of batteries of arranging in order, adjacent in the second group battery cell module distance between the battery cell module section is greater than 0.

In any one of the above technical solutions, further, the length of the first group of cell modules along the first direction is the same as the length of the second group of cell modules along the first direction.

In any one of the above technical solutions, further, at least one of the first group of cell modules and the at least one second group of cell modules includes at least two of the cell module segments having different lengths along the first direction.

In any one of the above technical solutions, further, including first group battery cell module and at least one battery module of second group battery cell module be in both sides in the second direction are formed with the installation component, the installation component is formed with and is used for the installation department with battery package complex.

In any of the above technical solutions, further, a limiting groove for fixing the battery cell is formed on a surface of one side of the mounting member, the surface facing the battery cell.

In any one of the above technical solutions, further, a separator is disposed between any two adjacent battery cell modules in the second direction.

In any one of the above technical solutions, further, third accommodating grooves for accommodating the battery cells are formed on two side surfaces of the separator, and the third accommodating grooves are opposite to the limiting grooves.

In any one of the above technical solutions, further, the battery pack includes a lower housing, a cross beam is disposed in the lower housing, and the cross beam divides an inner space of the lower housing into a plurality of accommodating cavities for accommodating the battery modules.

In any one of the above technical solutions, further, the mounting portion is formed with a plurality of protruding portions arranged at intervals in the first direction, and the plurality of protruding portions are all connected to the cross beam.

Compared with the prior art, the beneficial effect of this application is:

the application provides a battery module includes: first group's electric core module, first group's electric core module include along the first direction at least two electric core module sections of arranging in order, and every electric core module section of first group's electric core module all is formed with the first portion of holding that is used for holding a plurality of electric cores of arranging in order.

The application provides a battery module can prolong or shorten the length of this battery module through the use quantity of increase and decrease electric core module section, and then can realize increasing and decreasing the quantity of electric core correspondingly along with the dimensional change of battery module for this battery module has stronger commonality and practicality, can satisfy not equidimension power supply demand, has stronger practicality, is favorable to standardized spare part, reduction in production, use cost, shortens development cycle.

The application provides a battery package, including the aforesaid battery module, therefore, can suitably increase and decrease the quantity of electric core through this battery module to can reform transform the volume of battery package, so that the battery package can be applicable to multiple application, help enlarging the application scope and the use scene of battery package, improve the practicality of battery package.

Drawings

In order to more clearly illustrate the detailed description of the present application or the technical solutions in the prior art, the drawings needed to be used in the detailed description of the present application or the prior art description will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;

fig. 2 is a schematic view of a partial structure of a battery module according to an embodiment of the present disclosure;

fig. 3 is another partial schematic structural diagram of the battery module provided in the embodiment of the present application (fig. 3 is a schematic diagram after the battery cells are hidden in fig. 2);

fig. 4 is another schematic structural diagram of a battery module according to an embodiment of the present disclosure.

Reference numerals: 1-a first body member, 101-a first mounting portion, 1011-a first protrusion, 1012-a first recess, 1013-a first connection hole, 102-a first receiving groove, 2-a cell, 3-a third body member, 301-a third mounting portion, 3011-a third protrusion, 3012-a third recess, 3013-a third connection hole, 4-a fourth body member, 5-a first separator, 501-a third receiving groove, 6-a second separator, 100-a battery module, 200-a first group of cell modules, 300-a second group of cell modules, a-a first direction, b-a second direction.

Detailed Description

The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments.

The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The following describes a battery module according to some embodiments of the present application with reference to fig. 1 to 4.

Referring to fig. 1 to 4, an embodiment of the present application provides a battery module 100, which includes a first cell module 200, the first cell module 200 includes at least two cell module segments, the at least two cell module segments are sequentially arranged along a first direction a, and each of the cell module segments included in the first group of cell modules 200 is formed with a first accommodation portion, so that the first accommodating portion can accommodate and fix a plurality of battery cells 2 arranged along the first direction a, and in addition, the distance between adjacent battery cell module sections in the first group of battery cell modules 200 is greater than 0, so that the adjacent battery cell module sections are independent from each other, so that the first cell module 200 includes a plurality of discrete cell module segments, the length of the cell module segments can be increased or decreased, and when the quantity of increase and decrease electric core module section, do not influence the structure of electric core module section that closes on to can realize this battery module 100's standardization and generalized design.

The application provides a battery module 100 can prolong or shorten this battery module 100's length through the use quantity of increase and decrease electric core module section, and then can realize increasing and decreasing the quantity of electric core 2 correspondingly along with battery module 100's dimensional change, make this battery module 100 have stronger commonality and practicality, can satisfy not equidimension power supply demand, stronger practicality has, and the shape of each electric core module section, the structure, the size can be the same, be favorable to standardized spare part, reduce production, use cost, shorten development cycle.

In one embodiment of the present application, preferably, as shown in fig. 1 to 3, the battery module 100 includes at least one second group of cell modules 300, and the first group of cell modules 200 and the at least one second group of cell modules 300 are arranged side by side along a second direction b perpendicular to the first direction a;

the second group battery module 300 includes a plurality of battery core module sections of arranging in order along first direction a, the quantity of the battery core module section of the second group battery core module 300 is at least two, every battery core module section of the second group battery core module 300 all is formed with the second portion of holding a plurality of electric cores 2 of arranging in order, and similarly, the distance between two adjacent battery core module sections in the second group battery core module 300 is >0, make also independently set up between each battery core module section in the second group battery core module 300, be convenient for through the quantity of increase and decrease battery core module section in order to increase and decrease the length of the second group battery core module 300.

In this embodiment, the number of the second group of battery cell modules 300 is at least one, and at least one second module and the first group of battery cell modules 200 are sequentially arranged along a second direction b, wherein the second direction b and the first direction a are two directions perpendicular to each other. As shown in fig. 1 and fig. 2, the battery module 100 may include a first group of battery cell modules 200 and a second group of battery cell modules 300 that are sequentially arranged along a second direction b; as shown in fig. 4, the battery module 100 may include one first group cell module 200 and three second group cell modules 300, which are sequentially arranged in the second direction b. However, without being limited thereto, the number of the second group of cell modules 300 may also be two or five or more.

Further, the second battery cell module 300 also has at least two battery cell module segments, and in order to facilitate the distinction, at least two battery cell module segments included in the first battery cell module 200 are defined as a first battery cell module segment, and at least two battery cell module segments included in the second battery cell module 300 are defined as a second battery cell module segment.

In one embodiment of the present application, preferably, as shown in fig. 1 to 3, the length of the first group of cell modules 200 along the first direction a is the same as the length of the second group of cell modules 300 along the first direction a.

In this embodiment, the length that first group electric core module 200 and second group electric core module 300 extend along first direction a is the same, in the in-service use process, each group electric core module all includes the first electric core module section of multistage separately, the second electric core module section, can be according to the space increase and decrease first electric core module section in the battery package, the quantity of second electric core module section is in order to satisfy the distribution requirement of electric core 2 in the battery package, thereby also make this battery module 100 have stronger practicality, such configuration overall arrangement is convenient for improve packaging efficiency.

In an embodiment not shown, the lengths of the first and second sets of cell modules 200 and 300 extending along the first direction a may be different to form a battery module with an asymmetric shape, so as to be able to adapt to a specific custom-designed battery pack.

Furthermore, in one embodiment of the present application, preferably, as shown in fig. 1 to 3, at least one of the first group of cell modules 200 and the at least one second group of cell modules 300 includes at least two cell module segments having different lengths along the first direction a.

In the present embodiment, specifically, taking as an example that the first group of cell modules 200 includes two different lengths, the first cell module segments with two different lengths are respectively defined to include at least a first body member 1 and a second body member, the second cell module segments with two different lengths are respectively defined to include at least a third body member 3 and a fourth body member 4, preferably, the first body member 1 and the third body member 3 have the same length, the second body member and the fourth body member 4 have the same length, the first body member 1 and the third body member 3 both have a plate structure and are arranged in parallel and face each other, a receiving space is defined between the first body member 1 and the third body member 3, the receiving space is used for receiving the cell 2, and the number of the cells 2 is multiple, the multiple cells 2 are sequentially arranged along the same straight line along the first direction a in the receiving space, the first direction a is the longitudinal direction of the first body member 1, and the total length of the battery module 100 can be increased or decreased by increasing or decreasing the number of the first body member 1 and the second body member.

The second body member and the fourth body member 4 are arranged in parallel to face each other, and the battery cell 2 is disposed between the second body member and the fourth body member 4.

Further, the first body member 1 and the third body member 3 have a first predetermined length, and the second body member and the fourth body member 4 have a second predetermined length different from the first predetermined length.

Here, as shown in fig. 1, the first body member 1 and a first partition plate 5 described below enclose a first housing portion of a cell module section of the first group cell module 200; a second body member (not shown) and a second separator plate 6, described below, define a first receptacle for another adjacent cell module segment of the first group of cell modules 200, and so on.

Similarly, as shown in fig. 1, the third body member 3 and the first partition plate 5 described below enclose a second accommodating portion of the cell module section of the second group of cell modules 300; the fourth body member 4 and a second separator 6, as described below, enclose a second receptacle of another adjacent cell module segment of the second group of cell modules 300, and so on.

In this embodiment, the first body member 1 and the third body member 3 each have a first predetermined length, and the N cells 2 are sequentially arranged in the first direction a between the first body member 1 and the third body member 3; the second and fourth body members 4 have the same length and each have a second predetermined length, wherein the second predetermined length is different from the first predetermined length, and M cells 2 are sequentially arranged between the second and fourth body members 4 along the first direction a, wherein M and N are positive integers, preferably, 4 ≦ N ≦ 20, 4 ≦ M ≦ 20, and M > N, for example, N is preferably 8, M is preferably 10, although not limited thereto, such that the number of cells 2 that are commonly clamped by the two modules, including but not limited to the following combinations: 8+8, 10+10, 8+8+8, 8+10+8, 10+8+10, 10+10+10.

In one embodiment of the present application, preferably, as shown in fig. 1 to 3, mounting members are formed at both sides in the second direction b of the battery module 100 including the first group of cell modules 200 and the at least one second group of cell modules 300, and the mounting members are formed with mounting portions for fitting with a battery pack. For example, with respect to fig. 1 and 2, the mounting member includes a first body member 1, a second body member, a third body member 3, a fourth body member 4, and the like.

Further, a plurality of first accommodating grooves 102 are arranged on one side surface of the first main body member 1 facing the battery cells 2 along the first direction a, the first accommodating grooves 102 have a structure of limiting clamping grooves, the number of the first accommodating grooves 102 on the first main body member 1 is the same as that of the battery cells 2 facing the first main body member 1, a second accommodating groove is arranged on one side surface of the third main body member 3 facing the battery cells 2 along the first direction a, the second accommodating groove has a structure of limiting clamping grooves, the number of the second accommodating grooves is the same as that of the first accommodating grooves 102, and is N, each first accommodating groove 102 faces one second accommodating groove, one battery cell 2 is arranged between each first accommodating groove 102 and each second accommodating groove, so that the N battery cells 2 are arranged at intervals along the first direction a between the first main body member 1 and the third main body member 3 and are relatively fixed in position, the probability that the electric core 2 shakes and is impacted is reduced, a certain gap is formed between any two adjacent electric cores 2, so that the use safety of the electric cores 2 is ensured, and preferably, a heat insulation material can be added between the two adjacent electric cores 2 in the gap, so that the thermal runaway propagation is further inhibited.

Similarly, M first receiving grooves 102 are disposed on a side surface of the second main body member facing the electric core 2, M second receiving grooves are disposed on a side surface of the fourth main body member 4 facing the electric core 2, and the arrangement manner of the first receiving grooves 102 on the second main body member, the arrangement manner of the second receiving grooves on the fourth main body member 4, and the functions thereof can be referred to above, and those skilled in the art can fully understand the above description and will not be described again.

Further, a side surface of the mounting member facing the battery cell 2 is formed with a stopper groove for fixing the battery cell 2, and the stopper groove forms a first accommodating portion and a second accommodating portion together with a third accommodating groove 501 of both side surfaces of a separator described below.

In one embodiment of the present application, preferably, as shown in fig. 1 to 3, a separator is disposed between any two adjacent sets of cell modules in the second direction b. The both sides face of separator is formed with the third holding tank 501 that is used for holding electric core 2 respectively, and third holding tank 501 just faces the spacing groove.

Preferably, the separator includes a first separator 5 and a second separator 6 having different lengths, and third receiving grooves 501 for receiving the battery cells 2 are formed on both side surfaces of the first separator 5 and the second separator 6, respectively.

In this embodiment, the first separator 5 and the second separator 6 have two sizes, the number of the first separator 5 is equal to the number of the first body member 1 and the third body member 3, the length of the first separator 5 is preferably equal to the length of the first body member 1 and the third body member 3, the number of the second separator 6 is equal to the number of the second body member and the fourth body member 4, and the length of the second separator 6 is preferably equal to the length of the second body member and the fourth body member 4, taking the first separator 5 as an example, the first separator 5 is disposed between the first body member 1 and the third body member 3 and the three are disposed in parallel with each other, so that the first separator 5 separates the accommodation space between the first body member 1 and the third body member 3 into two accommodation partitions, and N cells 2 can be arranged at intervals in the first direction a in each accommodation partition, the arrangement and function of the second partition 6 can be referred to above, and are not described in detail.

Further, a plurality of third accommodating grooves 501 are formed in two side wall surfaces of the first partition plate 5 and the second partition plate 6, the third accommodating grooves 501 have a structure of limiting clamping grooves, wherein the number of the third accommodating grooves 501 in the two side wall surfaces of the first partition plate 5 is the same as that of the first accommodating grooves 102 in the first main body member 1, each third accommodating groove 501 in one side wall surface of the first partition plate 5 facing the first main body member 1 faces one first accommodating groove 102, and each third accommodating groove 501 in one side wall surface of the first partition plate 5 facing the third main body member 3 faces one second accommodating groove, so that the N electric cores 2 in the two accommodating partitions separated by the first partition plate 5 can be fixed, and the electric cores 2 are arranged at intervals, thereby improving the safety of the battery pack and reducing the risk of thermal runaway propagation.

It should be noted that, because the spacing clamping groove structure of the first holding groove 102, the second holding groove, and the third holding groove 501 enables a predetermined gap to be formed between any two adjacent electric cores 2, a better heat dissipation effect can be achieved, preferably, a heat insulating material is added in the predetermined gap, so that mutual heat transfer between the electric cores 2 can be avoided, and the risk that a certain electric core 2 is subjected to thermal runaway and spreads to all electric cores 2 is effectively reduced.

Similarly, M limiting slots are respectively formed in two side surfaces of the second partition board 6, and the structure and the setting mode of the limiting slots of the second partition board 6 can be fully understood by those skilled in the art with reference to the above contents.

It should be noted that, in the embodiment of the present application, the first main body component 1, the second main body component, the third main body component 3, the fourth main body component 4, the first partition plate 5, and the second partition plate 6 adopt standardized structures and sizes, so that a module generalized component design can be implemented, which is beneficial to producing and processing standardized components, and has controllable cost, a short development period, and also can implement grouping and organizing the ultra-large electric core 2 module.

In one embodiment of the present application, preferably, the first body member 1, the second body member, the third body member 3, the fourth body member 4, the first separator 5, and the second separator 6 are made of a non-metallic, low thermal conductivity material, so that when thermal runaway occurs in the battery cell 2, heat transfer is reduced, heat diffusion is suppressed, and adjacent accommodation sections or adjacent battery modules 100 are prevented from being affected.

An embodiment of the present application further provides a battery pack (not shown in the drawings), including the battery module described in any of the above embodiments, so that all the beneficial technical effects of the battery module are achieved, and further description is omitted here.

Preferably, the battery pack further includes a housing, which specifically includes a lower housing, and the battery module 100 is disposed in the lower housing;

the lower case is provided with a cross member therein, and the cross member divides the inner space of the lower case into a plurality of receiving cavities for receiving the battery modules 100.

Further, the mounting portion is formed with a plurality of convex portions arranged at intervals along the first direction a, and the plurality of convex portions are respectively connected with the cross beam.

In the present embodiment, the first body member 1 is provided with a first mounting portion 101, the third body member 3 is provided with a third mounting portion 301, and the shape of the first mounting portion 101 is adapted to the shape of the third mounting portion 301;

the second body member is provided with a second mounting portion and the fourth body member 4 is provided with a fourth mounting portion, the shape of the second mounting portion fitting the shape of the fourth mounting portion.

In the present embodiment, the first mounting portion 101 is used to be connected to a designated position to ensure stability of the first body member 1, and the second, third and fourth mounting portions are the same.

The first mounting portion 101 is formed with at least one first protrusion 1011 and one first recess 1012, the number of the first protrusions 1011 is preferably three, the number of the first recesses 1012 is preferably three, the first protrusions 1011 and the first recesses 1012 are sequentially and alternately arranged, one side or both sides of each first protrusion 1011 are provided with the first recesses 1012, the third mounting portion 301 is formed with the third protrusions 3011 and the third recesses 3012, the arrangement of the third protrusions 3011 and the third recesses 3012 can be referred to above, and the arrangement of the second mounting portion on the second main body member and the arrangement of the fourth mounting portion on the fourth main body member 4 are the same as above.

Further, the second direction b is perpendicular to the first direction a, and along the visual angle of the second direction b, when two battery modules 100 are arranged in parallel along the second direction b, the first installation part 101 of one battery module 100 can be in adaptive butt joint with the third installation part 301 of another battery module 100 in an inserting-empty and staggered manner, and the second installation part of one battery module 100 can be in adaptive connection with the fourth installation part of another battery module 100 in an inserting-empty and staggered manner, so that the occupied space of the connection positions of the two battery modules 100 is reduced, and the overall size of the battery pack is favorably reduced.

Further, each of the first protrusions 1011 has a first connecting hole 1013 formed thereon, each of the third protrusions 3011 has a third connecting hole 3013 formed thereon, the first and third mounting portions 101 and 301 can be fixed to a designated position by using bolts and nuts or other fasteners, and similarly, the second protrusion has a second connecting hole formed thereon, and the fourth protrusion has a fourth connecting hole formed thereon, so that the second and fourth mounting portions can be fixed to the designated position.

The lower casing is provided with the first crossbeam and the second crossbeam of mutual parallel arrangement at least, use first installation department 101 and second installation department as an example, when fixed first main part component 1, set up first installation department 101 to first crossbeam, use fasteners such as screw can fix first main part component 1 on the crossbeam, when fixed second main part component, set up the second installation department to the second crossbeam, use fasteners such as screw can fix second main part component on the second crossbeam, third installation department 301 and fourth installation department are the same, fix this battery module 100 in the lower casing of battery package with this.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. The utility model provides a battery module, its characterized in that includes first group battery core module (200), first group battery core module (200) include along first direction (a) two at least battery core module sections of arranging in order, every battery core module section of first group battery core module (200) all is formed with the first portion of holding that is used for holding a plurality of electric cores (2) of arranging in order, adjacent in the first group battery core module distance between the battery core module section > 0.

2. The battery module according to claim 1, wherein the battery module (100) comprises at least one second group of cell modules (300), and the first group of cell modules (200) and the at least one second group of cell modules (300) are arranged side by side along a second direction (b) perpendicular to the first direction (a);

the second group battery cell module (300) includes along two at least battery cell module sections that first direction (a) was arranged in order, every battery cell module section of second group battery cell module (300) all is formed with the second portion of holding that holds a plurality of electric cores (2) of arranging in order, adjacent in the second group battery cell module distance between the battery cell module section is greater than 0.

3. The battery module according to claim 2, characterized in that the length of the first group of cell modules (200) in the first direction (a) is the same as the length of the second group of cell modules (300) in the first direction (a).

4. The battery module of claim 2, wherein at least one of the first group of cell modules (200) and at least one of the second group of cell modules (300) comprises at least two of the cell module segments that differ in length along the first direction (a).

5. The battery module according to claim 2, wherein mounting members formed with mounting portions for fitting with a battery pack are formed on both sides in the second direction (b) of the battery module (100) including the first group of cell modules (200) and the at least one second group of cell modules (300).

6. The battery module according to claim 5, characterized in that a side surface of the mounting member facing the battery cell (2) is formed with a stopper groove for fixing the battery cell (2).

7. The battery module according to claim 6, wherein a separator is provided between any two adjacent sets of the cell modules in the second direction (b).

8. The battery module according to claim 7, wherein third accommodating grooves (501) for accommodating the battery cells (2) are formed on two side surfaces of the separator, and the third accommodating grooves (501) are opposite to the limiting grooves.

9. The battery module according to claim 5, wherein the battery pack includes a lower case in which a cross member is provided, the cross member dividing an inner space of the lower case into a plurality of receiving cavities for receiving the battery modules (100).

10. The battery module according to claim 9, wherein the mounting portion is formed with a plurality of protrusions arranged at intervals in the first direction (a), the plurality of protrusions each being connected to the cross member.

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