Battery arrangement for a motor vehicle, motor vehicle and method for operating a battery arrangement

Abstract

Battery arrangement for a motor vehicle, motor vehicle and method for operating a battery arrangement The present invention relates to a battery arrangement (100) for a motor vehicle having a first battery module (1) with a first housing (5.1), a second battery module arranged next to the first battery module (1) in a first direction with a second housing, a cooling means channel (12) and a battery module connector (13) arranged in the cooling means channel (12) for electrically contacting the first and second battery modules (1), the first and second housing (5.1) having cooling medium inlet openings (10) at the respective front sides (5') opposite in a second direction (Y) arranged perpendicular to the first direction and respectively a cooling medium outlet opening (11) opening into the cooling medium channel (12) arranged centrally, relative to the second direction (Y), of the first and / or second housing (5.1). Figure to be published with the abstract: Fig. 2.

Description

Title of the invention: Battery arrangement for a motor vehicle, motor vehicle and method for operating a battery arrangement

[0001] The present invention relates to a battery arrangement for a motor vehicle comprising a first battery module with a first housing, a second battery module arranged in a first direction next to the first battery module with a second housing, a cooling means channel and a battery module connector arranged in the cooling means channel for electrically contacting the first and second battery modules and to a motor vehicle. The present invention further relates to a method for operating such a battery arrangement.

[0002] Battery arrangements for motor vehicles, in particular battery arrangements designed to provide electrical energy for a traction drive of the motor vehicle, generate heat during operation of the motor vehicle. To achieve a longer service life of the battery arrangement, this heat must be removed. Fluid cooling proves to be very effective in this regard. Typically, thermal contacts thermally connected, for example, to the battery cells by means of a heat-conducting paste are supplied with a fluid cooling medium. Alternatively or additionally, the battery modules or the battery cells can be supplied directly with a fluid, electrically non-conductive cooling medium, which in itself results in a significantly higher cooling power.

[0003] Battery arrangements are generally composed of several battery modules, in turn comprising at least one battery cell stack with several battery cells. The battery modules are electrically connected using a battery module connector, so that all battery modules can be charged and discharged via a common electrical connection of the battery arrangement.

[0004] In the operating situation of the battery arrangement, not only exhaust heat is generated at the battery cells but also at the battery module connector, for example ohmic losses. This too is disadvantageous since the heat generated at the battery module connector can be transmitted by thermal conduction to the battery cells, thereby increasing the ohmic resistance of the battery module connector and shortening its service life.

[0005] It is known in the state of the art how to cool both the battery cells and the battery module connector. Document CN 108 232 361 A discloses, for example, a battery arrangement for a motor vehicle in which a cooling medium circulates, towards the battery modules, through a cooling medium channel in which a conductive bar is arranged, before being discharged again. Here, both the battery modules and the conductive bar electrically connecting the battery modules are cooled.

[0006] It is disadvantageous here not to take into account that the battery modules require a higher cooling power than the conductive bar. Cooling the battery modules with the cooling medium already heated by the conductive bar is inefficient.

[0007] An objective of the present invention is therefore to provide a battery arrangement which does not have the mentioned disadvantages of the prior art but which allows highly efficient cooling of the battery arrangement, for which the requirements of the components of the battery arrangement are taken into account in terms of the cooling power provided.

[0008] This object is achieved by a battery arrangement for a motor vehicle comprising a first battery module with a first housing, a second battery module arranged in a first direction next to the first battery module with a second housing, a cooling means channel, a battery module connector arranged in the cooling means channel for electrically contacting the first and second battery modules, the first and second housing having cooling means inlet openings at respective opposite front sides in a second direction arranged perpendicular to the first direction and respectively a cooling means outlet opening of the first and / or second housing arranged centrally with respect to the second direction and opening into the cooling means channel.

[0009] In the battery arrangement according to the invention, a cooling means supplies the battery modules laterally via the front walls. Since the cooling means inlet openings are located at the two opposite front sides of a housing, the front sides are the outer sides. The cooling means can flow towards the center from the outer sides of the battery modules through the battery modules and then be supplied to the battery module connector through the centrally arranged cooling means outlet openings. The cooling means first cools the battery modules and then the battery module connector, so that an optimally tempered cooling means is provided to the battery modules. Since This applies to both the first and second battery modules, as they have the same conditions, so that no drop in cooling power from the first to the second battery module is expected due to interconnected cooling of the battery module connector.

[0010] It is therefore conceivable that the battery arrangement comprises additional battery modules having the same characteristics as the first and / or second battery module. It is conceivable that the first and / or second housing and / or the cooling means channel are manufactured from a plastic material, in particular an electrically insulating plastic material. It is also conceivable that the first and / or second housing and / or the cooling means channel have(s) a structure made of metal, in particular aluminum. It is further conceivable that the first and / or second housing and / or the cooling means channel comprises an additional structure for electrically insulating the first and / or second housing and / or the cooling means channel.It is conceivable in this regard that, for example, the first and / or the second housing and / or the cooling means channel has a sandwich structure or an insulating material, for example a plastic material.

[0011] Advantageous configurations and improvements of the present invention may be drawn from the following description and with reference to the drawings.

[0012] A preferred embodiment of the present invention provides that the cooling means channel has a main direction of extension along the first direction. The cooling means channel extends through, advantageously centrally along the battery modules arranged one behind the other - relative to the main direction of extension of the cooling means channel. The electrical contacting of the battery modules with the battery module connector is preferably also a mechanical connection of the battery modules, which considerably increases the mechanical stability of the battery arrangement.

[0013] Another preferred embodiment of the present invention provides that the front sides are mechanically reinforced, the front sides preferably having thicker walls than the remaining sides of the housings and / or having reinforcing ribs and / or being made from a stiffer material than the remaining sides of the housings. This advantageously allows the battery arrangement to absorb the inserted kinetic energy in the event of an accident and to enable its discharge and targeted elimination. This applies in particular in the event of a side impact if the cooling means channel is arranged along the driving direction.

[0014] Another preferred embodiment of the present invention provides that the battery module connector comprises a conductive bar, the conductive bar preferably being arranged along the first direction. This ensures a stable electrical connection of the battery modules with reduced ohmic losses. Preferably, the conductive bar is made of copper or aluminum or from a metal alloy containing copper and / or aluminum.

[0015] Another preferred embodiment of the present invention provides that the first battery module comprises a first battery cell stack and a first additional battery cell stack, the first battery cell stack and the further first battery cell stack being arranged side by side in the first housing with respect to the second direction, the second battery module comprises a second battery cell stack and a further second battery cell stack, the second and the further second battery cell stack being arranged side by side in the second housing with respect to the second direction. This advantageously provides the possibility of arranging a battery cell stack to the left and to the right of the centrally arranged cooling means channel respectively.

[0016] Another preferred embodiment of the present invention provides that a cooling means segment is arranged along the second direction to conduct the cooling means at a lower side of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack and at an upper side opposite the lower side of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack. This advantageously allows the cooling means to be guided in a targeted manner along the upper side and the lower side of the battery cell stack and to cool them. Preferably, it is provided that the cooling means directly feeds the upper and lower sides.It is preferably provided that the cooling means is a dielectric cooling means, in particular an oil. However, it is also conceivable that thermally conductive elements are arranged on the upper side and the lower side of the battery cell stacks, said elements being thermally connected to the battery cells. For example, it is conceivable that the thermally conductive elements have a fin-pin structure and / or a ribbed structure. It is conceivable that the thermally conductive elements are dielectric.

[0017] Another preferred embodiment of the present invention provides that additional cooling means segments are arranged between the battery cells of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack for conducting the cooling medium along the second direction. The use of several further cooling medium segments, preferably parallel along the second direction, enables more efficient cooling. The battery cells are stacked for this purpose along a third direction perpendicular to the first direction and the second direction. Preferably, the additional cooling medium segments are provided between all the battery cells of a battery cell stack.

[0018] Another preferred embodiment of the present invention provides that additional cooling means segments are arranged between the battery cells of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack to conduct the cooling means along a third direction perpendicular to the first direction and the second direction. The use of several additional cooling means segments preferably parallel along the third direction also allows for highly efficient cooling. The battery cells are stacked and / or aligned for this purpose side by side along the first direction or along the second direction.Preferably, the additional cooling means segments are provided between all battery cells of a battery cell stack. It is conceivable that the cooling means segments and the additional cooling means segments are designed in such a way that the cooling means is guided tortuously through the battery cell stacks.

[0019] Another preferred embodiment of the present invention provides that in the cooling means segment, a closing element is arranged at the upper side, at an outer side, facing the front side, of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack and at the lower side, at an inner side opposite the outer side, for closing the cooling means segment in a fluid-tight manner or that in the cooling means segment, a closing element is arranged so as to close the cooling means segment in a fluid-tight manner at the lower side, at the outer side of the first battery cell stack, the other first battery cell stack,of the second battery cell stack and the other second battery cell stack and at the upper side of the inner side. This forces the cooling medium to take a longer path along the battery cell stacks. A direct flow along the cooling medium segment is thus excluded in the direction of the cooling medium outlet opening without a feedthrough, additional cooling medium segments. A backflow of the heated cooling medium in the additional cooling medium segments towards the cooling medium inlet opening and thus a further flow through the battery cell stack with the already heated cooling medium is thus also prevented.

[0020] Another preferred embodiment of the present invention provides that the cooling means channel is arranged on an upper side and outside an interior space of the first and second housing, preferably welded and / or glued, a part of the battery module connector being preferably arranged in the interior space and a part of the battery module connector being preferably arranged in the cooling means channel, the conductor bar being particularly preferably arranged in the cooling means channel. This advantageously allows a spatial separation of the cooling of battery cell stacks and the conductor bar. The assembly of the battery arrangement is furthermore significantly simplified by the cooling means channel lying at the top.

[0021] Another object of the present invention aimed at solving the previously formulated objective is a motor vehicle comprising a battery arrangement according to the invention. The battery arrangement is preferably a battery arrangement intended to supply electrical energy to a traction drive of the motor vehicle. The motor vehicle is preferably an electrically driven motor vehicle, i.e. a so-called hybrid vehicle with an electrically driven machine and a combustion machine or a fully electrically driven motor vehicle. For this purpose, it is preferably provided that the first direction is arranged along a longitudinal axis of the motor vehicle and that the second direction is arranged along a transverse axis of the motor vehicle.

[0022] Another preferred embodiment of the present invention provides that the front sides are arranged oriented towards the thresholds of the motor vehicle. Preferably, the battery arrangement extends from one threshold to the other threshold. The thresholds in the sense of the present invention are side thresholds of the body of the motor vehicle. This advantageously allows good use of space.

[0023] The present invention further relates to a method for operating a battery arrangement for a motor vehicle comprising a first battery module with a first housing, a second battery module arranged in a first direction next to the first battery module with a second housing, a cooling means channel and a battery module connector arranged in the cooling means channel for electrically contacting the first and second battery modules, the first and second housing having cooling means inlet openings at respective opposite front sides in a second direction arranged perpendicular to the first direction through which a cooling means enters the respective housing and the first and second housings (5.1, 5.2) respectively having a cooling means outlet opening (11) opening into the cooling means channel (12) and arranged in the center of the first and / or second housings (5.1, 5.2) with respect to the second direction (Y), through which the cooling means exits from the respective housing (5.1, 5.2).

[0024] The advantages described in connection with the battery arrangement are also achieved for the vehicle as well as for the method for operating a battery arrangement.

[0025] It is preferably provided that the battery arrangement is a battery arrangement according to the invention.

[0026] All of the singularities, characteristics and advantages set out above in relation to the battery arrangement according to the invention also relate to the motor vehicle according to the invention as well as the method according to the invention.

[0027] Other features, characteristics and advantages of the present invention will become apparent from the drawings and from the following description of preferred embodiments described with reference to the drawings. The drawings illustrate only exemplary embodiments of the present invention which are not limiting in their scope.

[0028] [Fig.l] schematically illustrates a battery arrangement according to an exemplary embodiment of the present invention.

[0029] [Fig.2] schematically illustrates a battery arrangement according to an exemplary embodiment of the present invention.

[0030] [Fig.3] schematically illustrates a battery arrangement according to an exemplary embodiment of the present invention.

[0031] [Fig.4] schematically illustrates a motor vehicle according to an exemplary embodiment of the present invention.

[0032] [Fig. 1] schematically illustrates a battery arrangement 100 according to an exemplary embodiment of the present invention with a view along a third direction (see [Fig. 1]), here from above. A first battery module 1, a second battery module 2, a third battery module 3 and a fourth battery module 4 can be identified therein. The battery modules 1, 2, 3, 4 are arranged side by side in a first direction X oriented perpendicular to the third direction. The battery arrangement 100 is a battery arrangement 100 for a motor vehicle (see [Fig. 4]). The thresholds 201 of the motor vehicle are arranged in a second direction Y perpendicular to the first direction X and to the third direction, next to the battery modules 1, 2, 3, 4. The battery modules 1, 2, 3, 4 comprise a casing. We thus note the presence of a first casing 5.1 of the first battery module 1 and a second casing 5.2 of the second battery module 2.

[0033] A first battery cell stack 6 and another first battery cell stack 7 of the first battery module 6, a second battery cell stack 8 and another second battery cell stack 9 of the second battery module 2, a third battery cell stack 8' and another third battery cell stack 9' of the third battery module 3 as well as a fourth battery cell stack 8" and another fourth battery cell stack 9" of the fourth battery module 4 are arranged in the housings 5.1, 5.2 of the battery modules 1, 2, 3, 4.

[0034] To cool the battery cell stacks 6, 7, 8, 8', 8“, 9, 9', 9“, the front sides 5' of the housings 5.1, 5.2 facing the sills 201 have cooling medium inlet openings 10. For reasons of visibility, the cooling medium inlet openings 10 are designated in [Fig.l] only at two points but they are located at both front sides 5' of all the battery modules 1, 2, 3, 4. A cooling medium, preferably a dielectric cooling medium, flows into the housings 5.1, 5.2 and through the cooling medium inlet openings 10 and supplies the battery cell stack 6, 7, 8, 8', 8“, 9, 9', 9“. The flow path of the cooling medium is shown here with dotted arrows.

[0035] The cooling medium flows from the front sides 5.1 through the cooling medium segments 14 towards the center where it flows into a cooling medium channel 12 through the cooling medium outlet openings 11. The cooling medium segments 14 and the cooling medium outlet openings 11 are designated here for reasons of visibility only once but are found at each of the battery modules 1, 2, 3, 4.

[0036] The cooling medium channel 12 collects the cooling medium heated by the battery cell stacks 6, 7, 8, 8', 8“, 9, 9', 9“ and leads it along the first direction X. A battery module connector is arranged in the cooling medium channel 12 (see [Fig.2], 3) and is thus also cooled.

[0037] [Fig.2] schematically illustrates an arrangement of batteries 100 according to a exemplary embodiment of the present invention. There is shown the battery arrangement 100 of [Fig.l] with a view along the first direction, i.e. from the front. The first battery module 1 can also be identified there with the first casing 5.1, the front walls 5', the lateral cooling medium inlet openings 10, the first battery cell stack 6, the other first battery cell stack 7 and the cooling medium paths again shown using dotted arrows. The second battery module is not visible here for perspective reasons.

[0038] It can be clearly identified here how the cooling medium penetrates through the cooling medium inlet openings 10 located at the front sides 5' in the first housing 5.1 and flows through the battery cells 6', 7' of the first and further first battery cell stack 6, 7 and thus cools them. The cooling medium first flows from the cooling medium inlet openings 10 along the third direction Z, here upwards and downwards, passing at the outer sides 6.3, 7.3 oriented towards the front sides 5, of the first and second battery cell stack 6, 7, and dividing into cooling medium segments 14 along the lower sides 6.1, 7.1 and the upper sides 6.2, 7.2 of the first and second battery cell stack 6, 7 as well as in additional cooling means segments 15 along the second direction Y, here along the horizontal, towards the center, between the individual battery cells 6' 7' of the first and second battery stack 6, 7. The battery cells 6', 7' are stacked on top of each other along the third direction Z. .

[0039] The cooling means then first passes, in the middle of the first housing 5.1, through a part of the battery module connector 13 into the interior space 5'“ of the first housing 5.1 and then along the inner sides 6.4, 7.5 of the first and second battery cell stack 6, 7 through the cooling means outlet opening 11, into the cooling means channel 12 arranged on the upper side 5“ of the first housing 5.1.

[0040] A conductive bar 13.1 of the battery module connector 13 is arranged in the cooling means channel 12, this bar also being cooled by the cooling means.

[0041] The second, third and fourth battery modules 2, 3, 4 cannot be identified, but the cooling means is introduced here into these battery modules 2, 3, 4 in a manner entirely analogous to the example shown here.

[0042] Both the cooling means channel 12 and the first casing 5.1 are electrically insulated. The front walls 5' are visibly significantly thicker than the remaining walls of the first casing 5.1. This makes it possible to absorb and evacuate the energy present in the event of an accident.

[0043] As can also be seen here, the cooling means channel 12 is made in several parts. Two lower parts 12.2 are connected in a sealed manner to the fluids with the first housing 5.1 to the left and right of the cooling medium outlet opening 11. An upper part 12.1 is arranged on the two lower parts 12.2, said part also being fluid-tightly connected to the lower parts 12.2. The cooling medium channel 12 is here glued or welded to the first housing 5.1.

[0044] [Fig.3] schematically illustrates an arrangement of batteries 100 according to a exemplary embodiment of the present invention. The embodiment illustrated here of the battery arrangement 100 resembles that of [Fig. 2] with the difference that here the battery cells 6', 7' of the first battery module 1 are aligned side by side along the second direction Y. The cooling medium (shown by dotted arrows), which enters through the cooling medium inlet openings 10 placed in the front sides 5' of the first housing 5.1, first flows into the interior space 5'“ of the first housing 5.1 towards the lower sides 6.1, 7.1 of the first and second battery cell stack 6, 7 where it divides along the lower sides 6.1, 7.1 into cooling medium segments 14 and further cooling medium segments 15 and flows along the third direction Z towards the upper sides 6.2, 7.2 of the first and second stack of battery cells 6, 7.The cooling medium is then guided along the upper sides 6.2, 7.2, through the cooling medium segment 14 to the center through the cooling medium outlet opening 10 provided in the cooling channel 12.

[0045] To ensure that the cooling medium flows through the additional cooling medium segments 14 and not only along the outer sides 6.3, 7.3 or the inner sides 6.4, 7.4 of the battery cell stack 6, 7 at the cooling medium segments 14, the battery arrangement 100 has fluid-tight closing elements 16.

[0046] As an alternative to the embodiment illustrated here, it would be possible by transforming the closure elements 16 to obtain a passage of the cooling medium flow first upwards along the outer sides 6.3, 7.3, through the additional cooling medium segments 14 and then back downwards and finally at the inner sides 6.4, 7.4, again upwards towards the cooling medium outlet opening 11. It is also conceivable that closure elements are arranged alternately upwards and downwards so as to cause the cooling medium to meander between the battery cells 6', 7'.

[0047] It is also possible to identify here, as in the embodiment illustrated in [Fig. 2], the battery module connector 13 with the conductive bar 13.1 and the distribution of the cooling means channel 12 into lower parts 12.2 and upper part 12.1.

[0048] Admittedly, the second, third and fourth battery modules 2, 3, 4 are not recognizable here but the cooling means is guided in these battery modules 2, 3, 4 in a manner entirely analogous to the case shown here.

[0049] [Fig. 4] schematically illustrates a motor vehicle 200 according to an exemplary embodiment of the present invention. The motor vehicle 200 comprises a battery arrangement 100 according to an exemplary embodiment of the present invention. A threshold 201 of the motor vehicle 200 can be seen there. Also shown are the first direction X corresponding to a longitudinal axis x of the motor vehicle 200, the second direction Y corresponding to a transverse axis y of the motor vehicle 200 and the third direction Z corresponding to a vertical axis z of the motor vehicle 200.

[0050] The following elements, parts, objects, and components are referenced in the figures of the attached drawings:

[0051] 1: first battery module

[0052] 2: second battery module

[0053] 3: third battery module

[0054] 4: fourth battery module

[0055] 5.1: first casing

[0056] 5.2: second casing

[0057] 5': front side

[0058] 5“: upper side

[0059] 5“': interior space

[0060] 6: first stack of battery cells

[0061] 6.1: lower side of the first battery cell stack

[0062] 6.2: upper side of the first battery cell stack

[0063] 6.3: outer side of the first battery cell stack

[0064] 6.4: inner side of the first battery cell stack

[0065] 7: other first battery cell stack

[0066] 7.1: lower side of the other first battery cell stack

[0067] 7.2: upper side of the other first stack of battery cells

[0068] 7.3: outer side of the other first stack of battery cells

[0069] 7.4: inner side of the other first stack of battery cells

[0070] 8: second stack of battery cells

[0071] 8': third stack of battery cells

[0072] 8“: fourth stack of battery cells

[0073] 9: another second stack of battery cells

[0074] 9': another third stack of battery cells

[0075] 9“: another fourth stack of battery cells

[0076] 10: cooling means inlet opening

[0077] 11: cooling means outlet opening

[0078] 12: cooling medium channel

[0079] 12.1: upper part

[0080] 12.2: lower part

[0081] 13: Battery module connector

[0082] 13.1: conductive bar

[0083] 14: cooling means segment

[0084] 15: additional cooling means segment

[0085] 16: closing element

[0086] 200: motor vehicle

[0087] 201: threshold

[0088] x: longitudinal axis

[0089] X: first direction

[0090] y: transverse axis

[0091] Y: second direction

[0092] z: vertical axis

[0093] Z: third direction

[0094] Of course, the invention is not limited to the embodiments described and shown in the attached drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of protection of the invention.

Claims

Claims

1. Battery arrangement (100) for a motor vehicle (200) comprising: a first battery module (1) with a first housing (5.1); a second battery module (2) arranged next to the first battery module (1) in a first direction (X) with a second housing (5.2); a cooling means channel (12); and a battery module connector (13) arranged in the cooling means channel (12) for electrically contacting the first and second battery modules (1, 2); characterized in that: the first and second housings (5.1, 5.2) comprise cooling medium inlet openings (10) at the respective front sides (5') opposite in a second direction (Y) arranged perpendicular to the first direction (X) and respectively a cooling medium outlet opening (11) opening into the cooling medium channel (12) arranged centrally, relative to the second direction (Y), of the first and / or second housing (5.1,5.2).

2. Battery arrangement (100) according to claim 1, characterized in that the cooling means channel (12) has a main direction of extension along the first direction (X).

3. Battery arrangement (100) according to any one of the preceding claims, characterized in that the front sides (5') are mechanically reinforced, the front sides (5') preferably having thicker walls than the remaining sides of the housings (5.1, 5.2) and / or having reinforcing ribs and / or being made from a stiffer material than the remaining sides of the housings (5.1, 5.2).

4. Battery arrangement (100) according to any one of the preceding claims, characterized in that the battery module connector (13) comprises a conductive bar (13.1), the conductive bar (13.1) preferably being arranged along the first direction (X).

5. A battery arrangement (100) according to any preceding claim, characterized in that the first battery module (1) comprises a first stack of battery cells (6) and another first stack of battery cells (7), the first and the other first battery cell stack (6, 7) being arranged side by side in the first housing (5.1) with respect to the second direction (Y); the second battery module (2) comprising a second battery cell stack (8) and another second battery cell stack (9), the second and the other second battery cell stack (8, 9) being arranged side by side in the second housing (5.2) with respect to the second direction (Y).

6. Battery arrangement (100) according to claim 5, characterized in that a cooling means segment (14) is arranged at a lower side (6.1, 7.1) of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack (6, 7, 8, 9) and at an upper side (6.2, 7.2) opposite the lower side (6.1, 7.1) of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack (6, 7, 8, 9) for conducting the cooling means along the second direction (Y).

7. Battery arrangement (100) according to claim 6, characterized in that additional cooling means segments (15) are arranged between the battery cells (6', 7', 8', 9') of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack (6, 7, 8, 9) for conducting the cooling means along the second direction (Y).

8. Battery arrangement (100) according to claim 6, characterized in that additional cooling means segments (15) are arranged between the battery cells (6', 7') of the first battery cell stack, the other first battery cell stack, the second battery cell stack and the other second battery cell stack (6, 7, 8, 9) for conducting the cooling means along a third direction (Z) perpendicular to the first direction (X) and the second direction (Y).

9. Battery arrangement (100) according to claim 8, characterized in that a closing element (16) is arranged in the cooling means segment (14) at the upper side (6.2, 7.2) at an outer side (6.3, 7.3), facing the front side (5'), of the first battery cell stack, of the other first cell stack of battery, of the second battery cell stack and of the other second battery cell stack (6, 7, 8, 9) and at the lower side (6.1, 7.1) at an inner side (6.4, 7.4) opposite the outer side (6.3, 7.3) for fluid-tight closure of the cooling means segment (14) or in that a closing element (16) is arranged in the cooling means segment (14) at the lower side (6.1, 7.1) at the outer side (6.3, 7.3) of the first battery cell stack, of the other first battery cell stack, of the second battery cell stack and of the other second battery cell stack (6, 7, 8, 9) and at the upper side (6.2, 7.2) of the inner side (6.4, 7.4) for fluid-tight closure the cooling medium segment (14).

10. Battery arrangement (100) according to any one of the preceding claims, characterized in that the cooling means channel (12) is arranged on an upper side (5“) and outside an interior space (5“') of the first and second housing (5.1, 5.2), preferably welded, glued and / or screwed, a part of the battery module connector (13) being preferably arranged in the interior space (5'“) and a part of the battery module connector (13) being preferably arranged in the cooling means channel (12), the conductor bar (13.1) being particularly preferably arranged in the cooling means channel (12).

11. A motor vehicle (200) comprising a battery arrangement (100) according to any preceding claim.

12. Motor vehicle (200) according to claim 11, characterized in that the first direction (X) is arranged along a longitudinal axis (x) of the motor vehicle (200) and the second direction (Y) is arranged along a transverse axis (y) of the motor vehicle (200).

13. Motor vehicle (200) according to claim 12, characterized in that the front sides (5') are arranged so as to be oriented towards thresholds (201) of the motor vehicle (200).

14. Method for operating a battery arrangement (100) for a motor vehicle (200) having: a first battery module (1) with a first housing (5.1); a second battery module (2) arranged next to the first battery module (1) in a first direction (X) with a second housing (5.2); a cooling medium channel (12); and a battery module connector (13) arranged in the cooling means channel (12) for electrically contacting the first and second battery modules (1, 2); the first and second housings (5.1, 5.2) having cooling medium inlet openings (10) at the respective front sides (5') opposite each other in a second direction (Y) arranged perpendicular to the first direction (X) through which a cooling medium flows into the respective housing (5.1, 5.2), and the first and second housings (5.1, 5.2) having respectively a cooling medium outlet opening (11) opening into the cooling medium channel (12) and arranged centrally, with respect to the second direction (Y), of the first and / or second housing (5.1, 5.2) and through which the cooling medium flows out of the respective housing (5.1, 5.2).

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