Battery and motor vehicle having the battery

Abstract

The invention relates to a battery (14) having a plurality of battery modules (18) arranged in a battery housing (16). Each battery module (18) has a battery cell (28) which is at least partially surrounded by a module housing (34) of the respective battery module (18) and has two connecting poles (39) on the top side (36b) of the module housing (34). In order to guide an air flow (44) discharged from the battery cells (28) of at least one of the battery modules (18) along a predetermined exhaust path, the module housing (34) of each battery module (18) has a first exhaust opening (50) on an end side (38a) arranged perpendicular to the top side (36b) of the module housing (34), and the battery housing (16) has a second exhaust opening (68).

Description

Technical Field

[0001] The invention relates to a battery and a motor vehicle having such a battery. Background Art

[0002] A battery in the sense of the present invention comprises a plurality of battery modules, which are arranged in a battery housing of the battery. Each battery module may include at least one battery cell, which may be configured as a soft-pack cell, a prismatic cell, or may also be configured as a round cell. Such a battery cell comprises a galvanic cell, which may have two electrodes charged differently from each other, that is, an anode and a cathode, which electrodes may be electrically insulated from each other by a separator or a separator membrane and arranged into a cell roll. The described cell roll is surrounded by the cell housing of the corresponding battery cell and buried in an electrolyte or an electrolyte solution. In this case, such a battery cell may provide a voltage between 3 volts and 5 volts, in particular between 3.5 volts and 4.5 volts. In order to provide power electrical energy for a motor vehicle that can be driven at least partially electrically, a plurality of such battery cells of such a battery may be electrically connected in series and / or in parallel.

[0003] It is known that, due to cell failure or aging processes of battery cells, gases may form in the interior of the corresponding cell housing. In this case, the cell chemistry in the relevant battery cell can, for example, increase the flammability of the gas when exposed to ambient air and determine the gas temperature. In order to reduce the cell pressure that increases due to gas generation, known battery cells have a vent opening on the cell housing, through which the gas can be discharged into the surroundings of the battery cell.

[0004] For example, document DE 10 2012 222 111 A1 describes a battery cell having a locking body for fixing an electrode assembly and a venting element, wherein the gas generated inside the battery cell can be conducted to the venting element by means of a channel structure of the locking body.

[0005] However, the locking bodies additionally arranged in the battery cells may increase the installation space and weight of the battery cells.

[0006] Alternative methods for venting gas through openings on the outside of the cell housing without the use of a locking body are described, for example, by the following prior art documents.

[0007] From document DE 10 2012 015 816 A1 it is known to arrange a plurality of battery cells of a battery module of a motor vehicle battery in a stacked manner one behind the other or side by side such that the connecting poles of the battery cells are arranged along two parallel pole rows and the exhaust gas rated breaking points of the battery cells are arranged between these pole rows along a row of set breaking points extending parallel to these pole rows.

[0008] Document DE 10 2013 203 106 A1 discloses a housing for a battery cell, which has at least one safety valve, wherein the safety valve opens into a channel section of a venting channel. The channel section can be arranged on the outside of the housing between two electrical connection poles extending from the housing, or can be arranged on the housing so as to extend through the housing.

[0009] In both documents, an opening designed as a exhaust gas rated breaking point or safety valve is always arranged on the outside of the cell housing between two electrical terminals, and the size of the opening is therefore predetermined by the relative distance of the two terminals from one another. Summary of the invention

[0010] Against this background, the object of the present invention is to provide an improved concept for a battery of the type mentioned at the outset in order to further increase the operating safety of the battery in the event of gas escaping from at least one battery cell of the battery. In addition, the object of the present invention is to provide a motor vehicle having such a battery.

[0011] This object is achieved by the subject matter of the independent claims. Advantageous developments of the invention are described by the dependent claims, the following description and the drawings.

[0012] A battery is provided by an improved scheme. Preferably, the battery is a battery of the type described at the beginning. The battery includes a certain amount of battery modules arranged in a battery housing. Each battery module has a battery cell, which is at least partially surrounded by the module housing of the respective battery module and has two connecting poles on the top side of the module housing. In the sense of the present invention, a battery module is understood as a unit defined by a module housing inside the battery, which includes at least one and preferably multiple battery cells. In particular, the battery module can have two battery cells, which can together constitute a so-called hybrid cell. The battery cell can be a soft-pack cell, a prismatic cell or a round cell, wherein the battery cell can be at least partially defined by a cell housing. In particular, the battery cell can have a cell chemical composition formed by nickel, cobalt and manganese in a predetermined mixing ratio (for example, 6:2:2 or 8:1:1). Each housing, that is, a cell housing, a module housing and a battery housing can be arranged as a container to encapsulate a component arranged in itself. In particular, the corresponding housing can be made of metal, such as steel, or contain the metal. Arranged on the top side of the module housing of each battery module are two connecting poles, by means of which the battery modules can be electrically connected to one another.

[0013] In order to guide the air flow escaping from the battery cells of at least one battery module in the battery module along a predetermined exhaust path, the module housing of each battery module has a first exhaust opening and the battery housing has a second exhaust opening. The air flow can be a directional movement of a (gas) fluid and particles entrained in the fluid (e.g., soot, sparks), wherein the exhaust path can define the movement profile of the air flow. The exhaust path can define the air flow path inside the battery by means of two exhaust openings, namely the first exhaust opening and the second exhaust opening, so as to discharge the air flow from the battery in a defined or predetermined manner. In the sense of the present invention, the corresponding exhaust opening can be understood as a closable gap or void in the corresponding housing, that is, the module housing and the battery housing, through which the air flow can flow out from the internal space defined by the corresponding housing to the surrounding environment of the corresponding housing. Alternatively, the corresponding exhaust opening can be a gas-permeable section on the corresponding housing, which section can be designed as a membrane, for example.

[0014] According to the improved scheme, the first exhaust opening is positioned on the end side of the module housing of each battery module, which is arranged perpendicularly to the top side of the module housing, and is configured to guide the air flow from the interior space bounded by the module housing into the exhaust channel of the battery housing. The interior space of the module housing may include battery cells and an intermediate space between the outer side of the cell housing of the battery cells and the inner side of the module housing. At least one of the following elements may be arranged in the intermediate space: a compression element, which exerts a predetermined pre-pressure on the battery cells; a heat insulation element for limiting or preventing undesired heat transfer; a heat conducting element (e.g., a heat conducting pad or so-called caulking agent) for dissipating heat from the battery cells; a support element for increasing the stability of the battery cells and / or the module housing. First, the air flow can be vented, i.e., flowed out, from the battery cells into the intermediate space in an undirected manner at structurally weak areas of the cell housing, such as in the area of ​​a weld seam and / or due to mechanical support, such as in an area of ​​pressure concentration. Here, the air flow can flow out of the cell housing at any position of the cell housing, in particular, regardless of the position of a cell fault (e.g., an internal short circuit in a battery cell). In the intermediate space, that is to say in the portion of the interior space not occupied by the battery cells and the cell housing, the air flow flows to the first exhaust opening arranged on the end side of the module housing of each battery module. Here, the first exhaust opening is explicitly not arranged on the top side of the module housing having two connecting poles. The end side can connect the top side of the module housing with the bottom side of the module housing, wherein the top side and the bottom side can be arranged in particular parallel to each other and perpendicular to the end side. In particular, the end side can be one of the two end sides, which can together with the longitudinal side that is longer than the end side constitute the outer peripheral surface of the module housing. The first exhaust opening arranged on the end side can include at least one partial section of the end side. Alternatively or additionally, the first exhaust opening can extend over the entire end side.

[0015] When the airflow is discharged from the inner space of the module housing through the first exhaust opening into the exhaust channel of the battery housing, the first exhaust opening can predetermine the first flow direction of the airflow. The exhaust channel can be a section inside the battery housing for guiding the airflow, which can separate the airflow spatially, for example, from the battery modules other than the at least one battery module of the battery, from the cooling device of the battery, or from the control device of the battery. In particular, the exhaust channel is configured to guide the airflow independently of the at least one battery module from which the airflow is discharged, and therefore the exhaust channel is preferably adjacent to each battery module, that is, to the corresponding end side of each battery module. After the airflow at least partially flows through the exhaust channel, the airflow escapes to the surrounding environment of the battery through the second exhaust opening. Preferably, the exhaust channel has a second exhaust opening on both sides opposite to each other, so that there can be two second exhaust openings. Therefore, the second exhaust opening is designed to lead the airflow out of the exhaust channel, that is, to the surrounding environment of the battery adjacent to the battery housing. Preferably, the second exhaust opening is arranged on the end side of the exhaust channel to provide a particularly long flow path for the airflow from the battery. When the air flow is discharged from the exhaust duct of the battery housing through the second exhaust opening into the surroundings of the battery, the air flow can have a second flow direction that is different from the first flow direction. In particular, the two flow directions can extend perpendicularly to each other, so that a change of direction or a change of direction of the air flow must be performed between the first exhaust opening and the second exhaust opening.

[0016] The advantage of the battery according to the improved concept is that, despite its compact design, the battery can reliably conduct the air flow from the battery cells of at least one battery module to the surroundings of the battery and can be manufactured in a simple manner. Due to the reduced structural space of the battery compared to the known concepts, the battery can provide a high energy density and, for example, increase the range of the motor vehicle when used in a motor vehicle that can be driven at least partially electrically. In particular, the functionality and integrity of those of the battery modules other than the at least one battery module containing the battery cells that exhaust gas can be maintained by means of the improved concept.

[0017] An advantageous embodiment provides that the exhaust channel is at least partially surrounded by a channel wall, wherein the channel wall has a slot for entering the module housing in the longitudinal extension direction of the exhaust channel. The exhaust channel can be configured as a slotted tube, for example. Here, the channel wall can have a first leg and a second leg, wherein the two legs can predetermine the slot. The slot can extend at least partially over the length of the exhaust channel. In order to arrange the module housing on the exhaust channel particularly simply with the end side, the slot width of the slot perpendicular to the longitudinal extension direction is greater than or equal to the module housing height parallel to the module housing end side including the first exhaust opening. If the slot width of the slot is the same as the height of the module housing, the channel wall can form a butt joint (Stumpfstoβ) with the top side of the module housing in the region of the first leg and a butt joint with the bottom side of the module housing in the region of the second leg. Here, the exhaust channel can be advantageously designed with particularly small spatial dimensions, wherein the configuration of the first exhaust opening (for example, on the entire end side) can be flexibly realized independently of the exhaust channel. If the gap width of the gap exceeds the height of the module housing, the channel can form an overlap joint with the module housing, wherein the first leg can partially overlap the top side of the module housing and the second leg can partially overlap the bottom side of the module housing. In this case, the top side and the bottom side of the module housing can be at least partially covered by the exhaust gas channel, that is to say overlap. As a result, a fluid-tight connection between the module housing and the exhaust gas channel, that is to say a connection that is especially tight with respect to exhaust gas, can be produced particularly easily.

[0018] Another advantageous embodiment provides that a support element for stabilizing the battery is arranged on the end side of the module housing having the first exhaust opening, wherein the support element has a first flange and a second flange, wherein the web of the support element connects the first flange to the second flange. Therefore, a support element positioned on the module housing is provided, by means of which the stability of the battery, in particular the stability of the module housing and / or the stability of the exhaust duct can be advantageously improved. The stability of a battery is a measure of the resistance of the battery to the forces acting on the battery. This force can, for example, be introduced into the battery from the outside, that is, from the surroundings, through the outside of the battery housing. Alternatively or additionally, this force can be applied to the inside of the battery housing, for example, by an air flow, inside the battery. In order to protect the battery from such external and / or internal loads, a support element is provided. The support element can, for example, be designed as a profile steel or a steel profile. Alternatively, the support element can be provided as a profile plastic or as a plastic profile. Here, the profile of the support element can, for example, include a U-shaped profile or an I-shaped profile in the case of an I-beam. The first flange and the second flange of the support element are so-called legs, which are connected to each other via an intermediate piece, i.e. a web. In particular, the two flanges are arranged parallel to each other and the web is arranged perpendicular to the two flanges. Here, the two flanges extend from the web at least on one side, that is to say, in particular, perpendicularly.

[0019] Another advantageous embodiment provides that the exhaust channel is connected to the module housing in a fluid-tight manner via a support element. This can advantageously prevent or limit the accidental discharge of the airflow between the exhaust channel and the module housing. Here, the gap is formed by a first leg and a second leg of the channel wall, wherein the first leg at least partially overlaps the first flange of the support element, and / or the second leg at least partially overlaps the second flange of the support element. Here, the corresponding flanges of the two flanges of the support element are at least partially covered, that is, overlapped, by the corresponding legs of the two legs of the exhaust channel arranged on the corresponding flanges. Here, in particular, the lower side of the corresponding flange of the two flanges of the support element facing the web is at least partially adjacent to the outer side of the corresponding leg of the two legs of the exhaust channel that is away from the inner space of the exhaust channel. Alternatively, the exhaust channel can overlap at least partially with the corresponding flange of the two flanges of the support element on the upper side facing away from the web with the inner side facing the inner space of the exhaust channel. Alternatively, one of the two flanges of the support element may partially cover the outer side of one of the two legs of the exhaust channel with its lower side, while the other of the two legs of the exhaust channel partially covers the other of the two flanges of the support element with its inner side.

[0020] Another advantageous embodiment provides that the web of the support element has a through hole that is larger than or equal to the first exhaust opening for exhausting the airflow. Therefore, the web of the support element has a gap through which the airflow can be introduced from the inner space of the module housing into the exhaust channel via the first exhaust opening. In order to increase the airflow pressure slightly when the airflow flows through the through hole, or to prevent the pressure from increasing, the through hole is larger than the first exhaust opening or at least has the same size as the first exhaust opening. In particular, when the battery is assembled as required, the cross section of the first exhaust opening perpendicular to the first flow direction can be included by the cross section of the through hole perpendicular to the first flow direction. Therefore, the airflow can be advantageously and particularly simply led out through the through hole of the support element constructed in this way.

[0021] Another advantageous embodiment provides that the module housing is positioned with the end side of the module housing having the first exhaust opening parallel to the web of the support element. As a result, the end side of the module housing having the first exhaust opening and the web of the support element are parallel to each other, so that the normal spacing between the web and the end side is always the same size. Preferably, the outer side of the web facing the module housing is arranged directly on the end side. In addition, the first flange and the second flange of the support element are at least partially placed with their respective inner sides on the top side of the module housing and on the bottom side of the module housing opposite to the top side. By placing the support element on the module housing in this way, a fluid-tight connection between the support element and the module housing can be established particularly simply. In particular, the respective inner sides of the two flanges can be parallel to the top side and the bottom side of the module housing so as to establish a surface contact between the support element and the module housing in the respective contact areas.

[0022] Another advantageous embodiment provides that the first exhaust opening of the module housing and, alternatively or additionally, the second exhaust opening of the battery housing can be closed by a safety valve. Therefore, at least one exhaust opening or both exhaust openings can be covered by means of a safety valve. The advantage obtained by this is that the airflow can be at least partially braked by means of the safety valve when it is discharged from at least one corresponding exhaust opening. In addition, the safety valve can be used to prevent the airflow from being discharged too early when it is below a predetermined limit value of the airflow, for example, when it is below the maximum pressure, or the safety valve can be used to allow the airflow to be discharged when it exceeds the limit value. The safety valve can be provided here, for example, as at least one rupture element, which can be configured as a rupture disc or a rupture membrane. Therefore, the airflow can flow out in a controlled manner after the safety valve is triggered.

[0023] Another advantageous embodiment provides that a spark arrester of the battery is provided between the first exhaust opening of the module housing and the second exhaust opening of the battery housing. This means that the spark arrester is located between the two exhaust openings along a predetermined exhaust path, and the airflow flows through, that is, passes through the spark arrester when the airflow is guided. In particular, the spark arrester can be arranged on the end side of the corresponding module housing including the first exhaust opening directly before the airflow flows into the exhaust channel. Alternatively, the spark arrester or an additional spark arrester can be arranged on the second exhaust opening. The spark arrester is configured to filter particles (such as soot and / or sparks) entrained in the airflow from the airflow. With the help of the spark arrester, the flow velocity of the airflow can be advantageously reduced relative to the initial velocity and the thermal energy of the airflow can be reduced relative to the initial thermal energy. For example, the spark arrester can be formed by a fiber fabric based on glass fibers and / or a ceramic fiber fabric. This can, for example, reduce or prevent the possibility of spontaneous combustion of the airflow after it is discharged from the battery into the surrounding environment.

[0024] Another advantageous embodiment provides that a structural space for electrical contact of these battery modules is provided between the battery housing and the top side of the module housing of each battery module, wherein the two connecting poles of each battery module extend into the structural space. Therefore, inside the battery, the electrical contact portion and the predetermined exhaust path are spatially separated from each other. Therefore, when the air flow is led out of the battery, it is advantageously possible to prevent the air flow from flowing around the two connecting poles of each battery module established in the structural space. The structural space is defined by the top side of the module housing and the battery housing, and the exhaust path of the air flow is introduced into the exhaust channel through the first exhaust opening arranged on the end side of the module housing. In addition, the outer wall of the exhaust channel can at least partially define the structural space for electrical contact.

[0025] According to the improved solution, a motor vehicle with a battery is also provided. The battery is designed to supply power to electrical consumers of the motor vehicle. Preferably, the battery is an embodiment of the battery according to the improved solution. The electrical consumer can be a power device of the motor vehicle, which can be configured as a hybrid drive or an electric drive. The motor vehicle can preferably be designed as a car, especially a sedan or a truck, or as a passenger bus or a motorcycle.

[0026] Improvements of the motor vehicle according to the invention also belong to the invention, which have the features already described in conjunction with the improvements of the battery according to the invention, and vice versa. For this reason, the corresponding improvements of the motor vehicle according to the invention are not described here.

[0027] The invention also includes combinations of features of the described embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The following describes an embodiment of the present invention. To this end, it is shown that:

[0029] Figure 1 A schematic diagram showing an exemplary embodiment of a motor vehicle according to an improved approach;

[0030] Figure 2 A schematic perspective view showing an exemplary embodiment of a battery according to an improved scheme;

[0031] Figure 3 a first schematic cross-sectional view showing an example embodiment of a battery according to an improved approach; and

[0032] Figure 4 A second schematic cross-sectional view shows an exemplary embodiment of a battery according to an improved approach.

[0033] The embodiments set forth below are preferred embodiments of the present invention. In the embodiments, the various parts described in the embodiments are the features of the present invention that can be considered independently of each other, and these features also improve the present invention independently of each other. Therefore, the present disclosure should also include the combination of the features of the embodiments in addition to the combinations shown. In addition, the embodiments can also be supplemented by other features in the features already described in the present invention.

[0034] In the figures, the same reference numerals respectively denote functionally identical elements. For the sake of clarity, functionally identical elements that occur multiple times, in particular in Figure 2 In the text, not all but at least one of the texts is provided with a corresponding reference numeral. DETAILED DESCRIPTION

[0035] Figure 1 A motor vehicle 10 designed as a passenger car is shown by way of example, which has an electrical consumer 12 designed as a power unit and a battery 14. The battery 14 can be designed as a so-called high-voltage battery for supplying power to the power unit. Thus, the motor vehicle 10 can be at least partially electrically driven and the power unit can be designed as an electric drive or a hybrid drive.

[0036] Figure 2 Combined with reference to Figure 1 The components shown and described show a battery 14 in a perspective view by way of example. The battery 14 comprises a plurality of battery modules 18 arranged in a battery housing 16. The battery housing 16 comprises two housing longitudinal sides 20 in the yz plane and two housing end sides 22 in the xz plane, which, when the battery 14 is assembled as intended, connect the housing bottom 24a, which is shown hidden, to the housing bottom 24a in the xz plane. Figure 3 The housing cover 24b shown first is connected. Figure 2In the embodiment of the present invention, the battery modules 18 are generally positioned adjacent to one another in two parallel rows, wherein the two rows of battery modules are separated from one another by a central partition 26 of the battery housing 16 .

[0037] Figure 3 Combined with reference Figure 1 and Figure 2 The components shown and described partially show one of the battery modules 18 of the battery 14 in a sectional view III-III. The battery module 18 includes at least one battery cell 28 shown and configured as a soft-pack cell, which has two cell electrodes 32 on the upper side of a cell housing 30 surrounding the battery cell 28. The battery cell 28 is at least partially surrounded by a module housing 34. Therefore, the battery cell 28 is arranged in an inner space 40 defined by the module housing 34. The module housing 34 includes a top side 36b and a bottom side 36a (both in the xy plane), which are connected to each other by two end sides 38a, 38b (both in the yz plane) of the module housing 34. In addition, there are two connecting poles 39 on the top side 36b of the module housing 34, which are used to make the battery module 18 shown in the battery module 18 electrically contact with other battery modules.

[0038] If a schematically illustrated cell failure 42 occurs in a battery cell 28, the resulting gas flow 44, indicated by means of arrows, initially escapes uncontrolled from the battery cell 28, for example at a weak area on the upper side of the cell housing 30 between two cell electrodes 32. In order to guide the gas flow 44 in a controlled manner along a predetermined gas venting path from the interior 40 bounded by the module housing 34 initially into the gas venting channel 46 of the battery housing 16, a first gas venting opening 50 is provided on the end side 38a of the module housing 34.

[0039] The exhaust duct 46 is at least partially surrounded by a duct wall 48, wherein the duct wall 48 has a gap 51 in the longitudinal extension direction of the exhaust duct 46, i.e. in the y direction, for adjoining / adjoining the module housing 34. In this case, the gap width 52 of the gap 51 between the two legs 53a, 53b of the duct wall 48 is greater than the height 55 of the module housing 34 at the end side 38a.

[0040] In order to stabilize the battery 14, a support element 54 is provided, which is arranged on the end side 38a of the module housing 34. The support element 54 is designed as an I-shaped profile and has a web 56 (in the yz plane) and two flanges 58a, 58b (in the xy plane) on the end side of the web 56. The web 56 arranged parallel to the end side 38a comprises a through-hole identical to the first exhaust opening 50 for exhausting the gas flow 44. In addition, the two flanges 58a, 58b are at least partially arranged with their inner sides facing each other on the top side 36b and the bottom side 36a of the module housing 34.

[0041] On the supporting element 54, on the side of the web 56 facing away from the module housing 34, i.e. upstream, a spark arrester 60 is arranged, which can be partially surrounded / engaged by the flanges 58a, 58b, each facing the inner side of each other. In addition, the flanges 58a, 58b are adjacent to the two legs 53a, 53b of the channel wall 48, wherein the flange 58b forms a butt joint with the leg 53b, and the flange 58a overlaps the leg 53a at least partially, wherein the top side of the flange 58a is at least partially covered by the inner side of the leg 53a.

[0042] Furthermore, a construction space 62 for electrically contacting the battery module 18 with other battery modules 18 is provided between the top side 36 b of the module housing 34 and the housing cover 24 b of the battery housing 16 , wherein two connecting poles 39 of the battery module 18 project into this construction space 62 for this purpose.

[0043] Figure 4 Combined with reference Figures 1 to 3 The components shown and described in the figure partially show a cross-sectional view IV-IV of a row of battery modules of a battery module 18 arranged in a battery housing 16 of a battery 14. After the air flow 44 flows from the module housing 34 of the battery module 18 into the exhaust channel 46 via the first exhaust opening 50 in a first flow direction along the x-direction, the first flow direction of the air flow 44 is transformed into two second flow directions (in the y-direction and in the direction opposite to the y-direction) that are opposite to each other. The battery housing 16 has two second exhaust openings 68 on the two housing end sides 22, through which the air flow 44 is discharged from the exhaust channel 46 into the surrounding environment 70 of the battery 14 adjacent to the battery housing 16. In addition, safety valves 72 configured as rupture elements are respectively provided on the two second exhaust openings 68.

[0044] In summary, these examples illustrate how a venting solution can be provided for the battery 14 .

Claims

1. A battery (14) comprising a plurality of battery modules (18) arranged in a battery housing (16), wherein each battery module (18) has a battery cell (28), which is at least partially surrounded by a module housing (34) of the respective battery module (18) and has two connecting poles (39) on the top side (36b) of the module housing (34), - in order to guide the air flow (44) escaping from the battery cells (28) of at least one of the battery modules (18) along a predetermined exhaust path, the module housing (34) of each battery module (18) has a first exhaust opening (50) and the battery housing (16) has a second exhaust opening (68), a first exhaust opening (50) being positioned on an end side (38a) of the module housing (34) of each battery module (18) and arranged perpendicularly relative to the top side (36b) of the module housing (34) and being designed to conduct an air flow (44) from an interior space (40) defined by the module housing (34) into an exhaust duct (46) of the battery housing (16), a support element (54) for stabilizing the module housing is arranged on the end side (38a) of the module housing having the first exhaust opening (50), the support element having an I-shaped profile, comprising a first flange (58a) and a second flange (58b) connected by a web (56), the first flange and the second flange being perpendicular to the web, the web resting on the end side of the module housing, so that the first flange (58a) of the support element (54) rests with the corresponding inner side at least partially on the top side (36b) of the module housing (34), and the second flange (58b) of the support element (54) rests with the corresponding inner side at least partially on the bottom side (36a) of the module housing (34) opposite the top side (36b), - the cross section of the exhaust channel (46) is defined by a support element (54) and a channel wall, the channel wall having a gap (51) for being adjacent to the module housing in the longitudinal extension direction of the exhaust channel, the gap width of the gap perpendicular to the longitudinal extension direction being greater than or equal to the height of the end side (38a) of the module housing (34) having the first exhaust opening (50) parallel to the module housing (34), wherein The channel wall abuts the first flange and the second flange of the support element, The second air outlet opening (68) is designed to allow the air flow (44) to be discharged from the air outlet channel (46) into the surroundings of the battery (14) adjacent to the battery housing (16).

2. The battery (14) according to claim 1, characterized in that The exhaust gas channel (46) is connected to the module housing (34) in a fluid-tight manner via a support element (54), wherein - the gap (52) is formed by a first leg (53a) and a second leg (53b) of the channel wall (48), - the first leg (53a) at least partially overlaps a first flange (58a) of the support element (54), and / or the second leg (53b) at least partially overlaps a second flange (58b) of the support element (54).

3. The battery (14) according to claim 1 or 2, characterized in that: The web (56) of the supporting element (54) has a through hole that is larger than or equal to the first exhaust opening (50) for exhausting the air flow.

4. The battery (14) according to claim 1 or 2, characterized in that: A first ventilation opening (50) of the module housing (34) and / or a second ventilation opening (68) of the battery housing (16) can each be closed by a safety valve (72).

5. The battery (14) according to claim 1 or 2, characterized in that: A spark arrester (60) of the battery (14) is arranged between a first exhaust opening (50) of the module housing (34) and a second exhaust opening (68) of the battery housing (16).

6. The battery (14) according to claim 1 or 2, characterized in that: A construction space (62) for electrical contacting of the battery modules (18) is provided between the battery housing (16) and the top side (36b) of the module housing (34) of each battery module (18), into which two connecting poles (39) of each battery module (18) project.

7. A motor vehicle (10) having a battery (14) according to any one of claims 1 to 6, wherein the battery (14) is designed to supply power to electrical consumers (12) of the motor vehicle (10).

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