BATTERY AND THE USE OF SUCH A BATTERY

Description

State of the art

[0001] The invention is based on a battery according to the class of the independent claim. The present invention also relates to the use of such a battery.

[0002] It is known from the prior art that a battery module comprises a plurality of individual battery cells, each of which has a positive voltage tap and a negative voltage tap. The respective voltage taps are electrically connected to form an electrically conductive serial and / or parallel connection between the plurality of battery cells and can thus be interconnected to form the battery module. Battery modules, in turn, are interconnected to form batteries or battery systems. Due to the multitude of possible, different vehicle installation spaces, variable module sizes are desirable in order to optimally utilize the available installation space.

[0003] Furthermore, the battery cells of a battery module, such as lithium-ion battery cells or lithium-polymer battery cells, heat up during operation due to chemical conversion processes caused by their electrical resistance when power is output or consumed. These processes are particularly pronounced when energy is output or consumed at a comparably rapid rate. The more powerful a battery or battery module is, the more pronounced the resulting heating is and the associated requirements for an efficient temperature control system. In order to increase the safety of a battery module and also ensure the performance of the battery cells, the battery cells of a battery module must be both heated and cooled in order to be able to operate them within a specific temperature range if possible. This way, for example, an increased aging behavior or a longer service life can be avoided.Decomposition of the cell chemistry can be prevented. However, the battery cells generally need to be cooled.

[0004] For example, temperature control, i.e. heating or cooling, of the battery can be achieved by liquid temperature control with a water / glycol mixture. This mixture is passed through cooling plates arranged below the battery module. The cooling plate can be connected to a corresponding component of a cooling circuit. DE102012012663A1 discloses a battery with first and second housing elements, wherein the second housing element forms a temperature control structure on a side facing the interior. DE102014007638A1 discloses a housing with an electrical energy storage unit, wherein a temperature control element is integrated into the cover surface of the housing. EP3331055A1 discloses a battery module for vehicles with submodules with a two-part housing, wherein cooling channels can be integrated into the base plate of the housing, so that the base plate contains a first temperature control structure that cools the batteries of the submodule.EP2908377A1 discloses a battery housing with an upper and lower housing part containing a battery module, in which a first heat exchanger plate is integrated into the housing base adjacent to the housing base plate. DE102009056607A1 discloses a battery with a first housing element forming a temperature control structure on the side facing away from the interior. A cell connector is arranged in the interior. Disclosure of the invention

[0005] The battery according to the invention with the features of the independent claim offers the advantage that the temperature control of individual battery components can be tailored to their respective needs. In particular, by designing two temperature control fluid receptacles as temperature control chambers, the temperature control requirements of a plurality of battery cells and power electronics components can be separately coordinated and optimized. This allows for optimization of the temperature control or cooling of the majority of battery cells separately from optimization of the temperature control or cooling of the power electronics components.

[0006] For this purpose, the invention provides a battery according to claim 1. The battery comprises a first housing element and a second housing element. The first housing element and the second housing element together form an interior space for accommodating a battery module. A plurality of battery cells of the battery module are arranged in the interior space. The plurality of battery cells are electrically conductively connected to one another in series and / or parallel. In particular, the battery cells are prismatic in design. The plurality of battery cells are preferably designed as lithium-ion battery cells.

[0007] A first element of a battery control is also arranged in the interior.

[0008] The first housing element forms a first temperature control structure on a side facing away from the interior. In particular, the first temperature control structure is further formed on a side facing away from the second housing element.

[0009] The second housing element forms a second temperature control structure on a side facing the interior. In particular, the second temperature control structure is also formed on a side facing the first housing element. A cover element is connected to the second housing element in such a way that the cover element defines a temperature control fluid receptacle through which the temperature control fluid can flow, in a fluid-tight manner, relative to the interior. The second temperature control structure is designed so that the temperature control fluid can flow around it. The measures listed in the dependent claims enable advantageous refinements and improvements of the device specified in the independent claim.

[0010] In particular, an embodiment of the battery according to the invention offers the advantage of enabling efficient cooling of the individual components, such as the majority of battery cells and the power electronics components, since comparatively short thermal paths are formed. At the same time, a compact battery design can be provided.

[0011] According to the invention, the first element of the battery control is arranged in a thermally conductive manner on a side of the cover element facing the interior. This allows the first element of the battery control to be reliably temperature-controlled. In particular, the first element of the battery control can be temperature-controlled independently of the plurality of battery cells. The temperature control of the first element of the battery control can be influenced by the design of the second temperature-control structure.

[0012] It is further expedient if a second element of the battery control is arranged in a thermally conductive manner on a side of the second housing element facing away from the interior and, in particular, the first housing element. This allows the second element of the battery control to also be reliably temperature-controlled. In particular, the second element of the battery control can be temperature-controlled independently of the plurality of battery cells.

[0013] According to the invention, the first element of the battery control comprises at least one electronic component of the battery module.

[0014] It is advantageous if an electrical component of the battery module is a cell connector and / or a cable. Cell connectors are designed to electrically connect voltage taps of the plurality of battery cells in series and / or parallel. Cables are designed to conduct electrical current from one component to another. According to the invention, the electronic component of the battery module is a switch, a fuse element, a battery control system, and / or a resistor.

[0015] The arrangement of the electrical component and the electronic component within the battery's interior makes it possible to connect the majority of the battery module's battery cells in series and / or parallel, as well as to control and regulate the battery module. Furthermore, these components can be reliably temperature-controlled simultaneously.

[0016] According to a preferred aspect of the invention, the at least one electronic component is integrated into a circuit board. Furthermore, the line can also be at least partially integrated into the circuit board. This offers the advantage of a comparatively compact design, which is also easy to temperature-control.

[0017] It is also expedient if the second element of the battery controller is an electrical voltage converter, in particular a DC-DC converter. Furthermore, the electrical voltage converter or the DC-DC converter can be arranged on a further circuit board or integrated into a further circuit board.

[0018] In this case, a thermal compensating material, such as a thermally conductive adhesive, a so-called gap filler, or a so-called thermal interface material (TIM), can also be arranged between the electrical voltage converter or the DC-DC converter and the second housing element. By connecting the electrical voltage converter to the second housing element, for example by means of screws, a reliable thermal conduction can be formed. Overall, this results in a comparatively short thermal path between a tempering fluid flowing through the tempering fluid receptacle of the second housing element and the electrical voltage converter or the DC-DC converter, thus resulting in a comparatively low thermal resistance.

[0019] It is particularly preferred if the cover element is planar and made of a metallic material, or if the cover element has a deformation for accommodating the first element of the battery control system. In particular, the cover element can preferably be made of a metallic sheet.

[0020] The cover element can be connected to the second housing element, for example, by a material bond, such as by welding. For this purpose, the second housing element can, for example, have a connection area designed to be connected to the cover element by a material bond. It should be noted again at this point that the cover element seals the temperature control fluid receptacle in a fluid-tight manner from the interior. Such a seal can be formed, in particular, by the material bond between the cover element and the connection area of ​​the second housing element.

[0021] Furthermore, it is also possible for the cover element to be connected to the second housing element in a form-fitting manner, such as by screwing. For more reliable sealing, an additional sealing element can be arranged between the cover element and the second housing element.

[0022] A planar design of the cover element offers the advantage that a comparatively large thermal contact surface is formed for connecting the first element of the battery control.

[0023] A cover element with a deformation for accommodating the first element of the battery control system, for example, offers the advantage that the height of the temperature control fluid receptacle through which the temperature control fluid can flow can be adjusted accordingly, thus providing a particularly space-optimized design. Furthermore, the deformation can ensure reliable accommodation of the first element of the battery control system. It should also be noted at this point that, for example, by designing with a bending angle, a height of the temperature control fluid receptacle can be created that decreases in the flow direction or in the longitudinal direction of the temperature control fluid receptacle.

[0024] Furthermore, it should be noted that the cover element is made of a metallic material; the metallic material can be selected from aluminum, copper, or nickel. This offers the advantage of comparatively high thermal conductivity.

[0025] In particular, a thermal compensation element, such as a thermally conductive adhesive, can be arranged between the first element of the battery control and the cover element.

[0026] The plurality of battery cells is expediently arranged in a thermally conductive manner with an inner space of the interior arranged directly adjacent to the first temperature control structure. This allows the temperature of the plurality of battery cells as a whole to be very reliably controlled. Furthermore, the temperature of the plurality of battery cells can be controlled, for example, independently of the first element of the battery control system and also independently of the second element of the battery control system. In particular, a thermal compensation element, such as a thermally conductive adhesive, can be arranged between the plurality of battery cells and the inner space.

[0027] It is expedient for the first housing element and / or the second housing element to be designed as a die-cast housing. This provides a mechanically comparable stable design. Furthermore, it makes it possible to form tempering fluid-carrying areas within the die-cast components, thus eliminating the need for additional cooling plates, heating elements, or temperature control systems.

[0028] It is advantageous if the first housing element and the second housing element are connected to one another in a fluid-tight manner. In particular, a sealing element is arranged between the first housing element and the second housing element. This makes it possible to provide a fluid-tight interior space for the battery. In particular, this allows the battery cells, the electrical component, and / or the electronic components to be protected from external influences.

[0029] According to a preferred aspect of the invention, the majority of battery cells are embodied as prismatic battery cells. Prismatic battery cells have a total of six side surfaces, which are arranged in pairs opposite one another and parallel to one another. Furthermore, adjacent side surfaces are arranged at right angles to one another. Overall, it is possible to provide a compact battery by using prismatic battery cells in a battery according to the invention.

[0030] It is expedient if a further cover element is arranged on the first housing element. In particular, the further cover element is arranged connected to the first housing element. In this case, the further cover element and the first temperature control structure together form a further temperature control fluid receptacle through which temperature control fluid can flow. The further cover element delimits the further temperature control fluid receptacle in a fluid-tight manner with respect to the environment. In addition, the first temperature control structure is designed such that the temperature control fluid can flow around it. This offers the advantage that the first temperature control structure can be adapted to the requirements with regard to the temperature control of the plurality of battery cells which are accommodated in the interior. This adaptation can be independent, for example, of the cooling of the electrical component and / or the electronic component and independent of the cooling of the electrical voltage converter orof the DC-DC converter. For example, the first temperature control structure can comprise flow disturbance elements or flow guide elements, which are arranged only where they can positively influence the temperature control due to the required temperatures of the majority of battery cells. Furthermore, the remaining areas of the further temperature control fluid intake can be optimized with regard to flow and pressure loss. In particular, a compromise between temperature control of the majority of battery cells and the electrical component and / or the electronic component and the electrical voltage converter can be dispensed with, since independent temperature control of these components is possible.

[0031] Preferably, the additional cover element is integrally connected to the first housing element. In particular, the additional cover element can be welded or soldered to the first housing element. Furthermore, a second sealing element can be arranged between the first housing element and the cover element.

[0032] It is also preferably possible if the further cover element is formed by the first housing element.

[0033] Overall, this offers the advantage that such a design can prevent temperature control fluid from entering the interior of the majority of battery cells in the event of faults or leaks in the first temperature control chamber.

[0034] Advantageously, the battery comprises a first connection and a second connection. The first connection is designed to supply the temperature control fluid to the battery, and the second connection is designed to drain the temperature control fluid from the battery.

[0035] In particular, the first connection and the second connection form an interface to a motor vehicle.

[0036] According to a first aspect, the temperature control fluid can flow serially through the temperature control fluid receptacle and the further temperature control fluid receptacle. For example, the temperature control fluid flows first through the temperature control fluid receptacle and then through the further temperature control fluid receptacle, or conversely, first through the further temperature control fluid receptacle and then through the temperature control fluid receptacle.

[0037] According to the second aspect of the invention, the temperature control fluid can flow through the temperature control fluid receptacle and the additional temperature control fluid receptacle in parallel. After flowing through the first connection, the temperature control fluid is divided into a first partial flow, which flows through the temperature control fluid receptacle, and a second partial flow, which flows through the additional temperature control fluid receptacle. The first partial flow and the second partial flow are recombined after flowing through the respective temperature control fluid receptacle and are discharged from the battery via the second connection.

[0038] This can minimize overall pressure loss, for example. Furthermore, it can also improve heat transfer.

[0039] In particular, the first housing element and / or the second housing element each have a temperature control fluid inlet and a temperature control fluid outlet. The respective temperature control fluid inlet serves to admit temperature control fluid into the temperature control fluid receptacle or the additional temperature control fluid receptacle, respectively, and the respective temperature control fluid outlet serves to discharge temperature control fluid from the temperature control fluid receptacle or the additional temperature control fluid receptacle. Furthermore, a temperature control fluid outlet and a temperature control fluid inlet can also be fluidically connected to one another, so that temperature control fluid can flow between the temperature control fluid receptacle and the additional temperature control fluid receptacle, or vice versa.

[0040] For example, the temperature control fluid inlet of the first housing element can form the first connection of the battery, allowing temperature control fluid to flow through it. Furthermore, the temperature control fluid outlet of the first housing element can be fluidly connected to the temperature control fluid inlet of the second housing element, allowing temperature control fluid to first flow through the further temperature control fluid receptacle and then through the temperature control fluid receptacle, thus forming a serial flow pattern. Furthermore, the temperature control fluid outlet of the second housing element can form the second connection of the battery, allowing temperature control fluid to leave the temperature control fluid receptacle.

[0041] For example, the temperature control fluid inlet of the second housing element can form the first connection of the battery, allowing temperature control fluid to flow into the temperature control fluid receptacle. Furthermore, the temperature control fluid outlet of the second housing element can be fluidly connected to the temperature control fluid inlet of the first housing element, allowing the temperature control fluid to first flow through the temperature control fluid receptacle and then through the other temperature control fluid receptacle, thus forming a serial flow pattern.

[0042] At this point, it should be noted that such a connection between the temperature control fluid inlet of one housing element and the temperature control fluid outlet of the other housing element is preferably formed within the first housing element and / or within the second housing element, which are furthermore particularly preferably each formed as a die-cast housing.

[0043] It is expedient if the first tempering structure and / or the second tempering structure are each designed as flow guiding elements, as flow disturbing elements or as flow limitations.

[0044] In particular, the first tempering structure and / or the second tempering structure can each be formed by the corresponding die-cast housing.

[0045] At this point, flow guide elements are understood to be those elements arranged within a respective temperature control chamber which serve to redirect a flow without a comparable increase in turbulence.

[0046] At this point, flow disturbance elements are understood to be those elements arranged within a respective temperature control chamber which serve to increase the turbulence of a flow, in particular to bring about a transition from a laminar to a turbulent flow in order to at least achieve improved heat dissipation.

[0047] At this point, flow restrictions are understood to be elements that mechanically limit the respective temperature control chamber.

[0048] It is also advantageous if the electrical component and / or the electronic component are thermally conductively connected to a side of the cover element facing the interior. In particular, a thermal compensation element, such as a thermally conductive adhesive or a so-called thermal interface material (TIM), can be arranged between the electrical component and / or the electronic component and the cover element. For example, by connecting a circuit board comprising the electronic component to the cover element, for example by means of screws or by means of a material connection, reliable thermal conduction can be achieved. Overall, this results in a comparatively short thermal path between a temperature control fluid flowing through the temperature control fluid holder and the circuit board, with a thus comparatively low thermal resistance.

[0049] The present invention also relates to the use of a battery according to claim 1 for temperature control and in particular for cooling the plurality of battery cells, the electrical component and the electronic component and the electrical voltage converter, wherein a temperature control fluid designed as a temperature control liquid or temperature control gas flows around the first temperature control structure or wherein the temperature control fluid designed as a temperature control liquid flows through the temperature control fluid receptacle. In particular, the battery is operated in such a way that the temperature of the battery cells, which are preferably designed as lithium-ion battery cells, is below a temperature of 40 °C and preferably below a temperature of 35 °C. In this way, sufficient thermal conditioning of the battery can be achieved, as a result of which the battery cells can be operated in a thermally non-critical state, so that, for example,an aging synchronization of the battery cells can be achieved, since in particular the temperature gradient from battery cell to battery cell is comparatively small. Short description of the drawings

[0050] Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.

[0051] It shows: Figure 1 shows a perspective view of an embodiment of a battery according to the invention, Figure 2 shows a sectional view of the embodiment of a battery according to Figure 1 , Figure 3 in a perspective view of a bottom side of a second housing element, Figure 4 in a perspective view of a top side of the second housing element according to Figure 3, Figure 5 in a perspective view of an underside of a second housing element with a cover element, Figure 6 in an exploded view of a section of a battery according to the invention, Figure 7 in a perspective view of an upper side of a first housing element and Figure 8 in a perspective view of an underside of a first housing element.

[0052] The Figure 1 shows in a perspective view an embodiment of a battery 1 according to the invention. Figure 2 shows this embodiment of the battery 1 according to the invention according to Figure 1 in a sectional view. The Figure 1 and 2 should now be described together.

[0053] The battery 1 comprises a first housing element 2 and a second housing element 3. According to the Figure 1 and 2In the embodiment of the battery 1 shown, the first housing element 2 is designed as a die-cast housing 20 and the second housing element 3 is designed as a die-cast housing 30.

[0054] The first housing element 2 and the second housing element 3 together form an interior space 5 for accommodating a battery module 10. In particular, in the sectional view according to Figure 2 The interior space 5 and the battery module 10 can be seen. In particular, the first housing element 2 and the second housing element 3 are connected to one another in a fluid-tight manner. For this purpose, a sealing element 131 is arranged between the first housing element 2 and the second housing element 3. In particular, the first housing element 2 and the second housing element 3 can also be connected to one another by screwing in order to form a reliable mechanical connection.

[0055] A plurality of battery cells 6 are accommodated in the interior 5. The plurality of battery cells 6 of the battery module 10 are electrically connected to one another in series and / or parallel. Preferably, as is clear from the Figure 2 As can be seen, the majority of battery cells 6 are each designed as prismatic battery cells 60.

[0056] The second housing element 3 forms a second temperature control structure 102 on a side facing the interior space 5. In particular, the second temperature control structure 102 is arranged facing the first housing element 2.

[0057] Furthermore, the battery 1 comprises a cover element 100, which is connected to the second housing element 3 in such a way that the cover element 100 defines a temperature control fluid receptacle 112 through which the temperature control fluid can flow, in a fluid-tight manner, relative to the interior space 5. Furthermore, the second temperature control structure 102 is designed so that the temperature control fluid can flow around it.

[0058] The cover element 100 has, according to the embodiments of the Figure 1 and 2 a deformation 110 for receiving a first element 8 of the battery control. Furthermore, it is also possible for the cover element 100 to be formed planar from a metal.

[0059] Furthermore, a first element 8 of a battery control system is arranged in the interior 5. The first element 8 of the battery control system is arranged in a thermally conductive manner on a side of the cover element 100 facing the interior 5.

[0060] The first element 8 of the battery control system comprises, according to the invention, at least one electronic component 81 of the battery module 10. Electrical components 80 of the battery module 10 can be cell connectors 82, which electrically connect the plurality of battery cells 6, 60 in series and / or parallel. Furthermore, the electrical components 8 can be lines 83, which carry electrical current. According to the invention, the electronic components 81 of the battery module 6 are switches, fuse elements, battery control systems and / or resistors. Particularly preferably, the electronic components 81, as can be seen from the Figure 2 can be seen, at least partially integrated into a circuit board 90.

[0061] The first housing element 2 forms a first temperature control structure 101 on a side facing away from the interior 5. In particular in the embodiment according to the Figure 1 and 2the first temperature control structure 101 is arranged on a side of the first housing element 2 facing away from the second housing element 3. Furthermore, the Figure 2 also that a further cover element 14 is arranged on the first housing element 2. The cover element 14 and the first housing element 2 together form a further temperature control fluid receptacle 111 through which temperature control fluid can flow. The first temperature control structure 101 is arranged within the further temperature control fluid receptacle 111. In particular, the cover element 14 can be integrally connected to the first housing element 2. Furthermore, a sealing element 132 can preferably be arranged between the first housing element 2 and the cover element 14.

[0062] As can be seen from the Figure 2As can be seen, the plurality of battery cells 6 are arranged in a thermally conductive manner with a first inner side of the interior 5 arranged directly adjacent to the first temperature control structure 101

[0063] Furthermore, the Figure 1 that the battery 1 has a first connection 151 and a second connection 152. The first connection 151 is designed to supply temperature control fluid to the battery 1, and the second connection 152 is designed to discharge temperature control fluid from the battery 1. The temperature control fluid can flow through the battery 1 and in particular the further temperature control fluid receptacle 111 and the temperature control fluid receptacle 112 in series or in parallel.

[0064] The battery module further comprises a second element 9 of the battery control unit. The second element 9 of the battery control unit is arranged in a thermally conductive manner on a side of the second housing element 3 facing away from the interior space 5 and, in particular, the first housing element 2.

[0065] In particular, the second element 9 of the battery controller can be an electrical voltage converter 91, such as in particular a DC voltage converter 92.

[0066] Figure 3 shows a perspective view of the underside of a second housing element 3 according to the invention. The temperature control fluid inlet 161 of the second housing element 3 can be seen, which is designed to admit temperature control fluid into the temperature control fluid receptacle 112. Furthermore, the temperature control fluid outlet 162 of the second housing element 3 can be seen. The second temperature control fluid outlet 162 is designed to discharge temperature control fluid from the temperature control fluid receptacle 112.

[0067] At this point, it should be noted that the temperature control fluid inlet 161 can also form the first connection 151 of the battery 1 or can be fluidly connected to the first connection 151 or that the temperature control fluid outlet 162 can also form the second connection 152 of the battery 1 or can be fluidly connected to the second connection 152.

[0068] Furthermore, the Figure 3also that the second housing element 3 comprises the second temperature control structure 102. The second temperature control structure 102 can comprise flow guide elements 121, which are designed to delimit the temperature control fluid receptacle 112 in such a way that the temperature control fluid is guided accordingly. Furthermore, the second temperature control structure 102 can comprise flow disturbance elements 122, which are designed to increase the turbulence of the temperature control fluid flowing through the temperature control fluid receptacle 112. Furthermore, the second temperature control structure 102 can also comprise flow restrictors 123, which delimit the temperature control fluid receptacle 112 in a fluid-tight manner.

[0069] A flow pattern within the temperature control fluid receptacle 112 is schematically represented by the arrows shown. In particular, the flow pattern is U-shaped.

[0070] At this point, it should already be noted that the cover element 100 is arranged in such a way that the temperature control fluid receptacle 112 is fluid-tightly sealed from the interior space 5. In particular, the cover element 100 can, for example, be integrally connected to the second housing element 3.

[0071] The Figure 4 shows in a perspective view a top side of the second housing element 3 according to Figure 3 . In particular, the tempering fluid inlet 161 of the second housing element 3 and the tempering fluid outlet 162 of the second housing element 3 are also shown here.

[0072] In particular, it should be noted at this point that the second element 9 of the battery controller, for example, the electrical voltage converter 91 or, in particular, the DC-DC converter 92, can be arranged directly on the upper side shown in a thermally conductive manner. For this purpose, the second housing element 3 can, for example, have screw connection points 125.

[0073] Figure 5 shows a perspective view of an underside of a second housing element 3 according to the invention with a cover element 100. In particular, the design of the second housing element 3 corresponds to the design according to Figure 3. The cover element 100 is connected to the second housing element 3 in such a way that the cover element 100 defines the temperature control fluid receptacle 112 in a fluid-tight manner with respect to the interior 5. According to Figure 5, the cover element 100 is formed from a metallic material. Furthermore, the cover element 100 has a deformation 110. The deformation 110 is designed to receive the first element 8 of the battery control, as is also the case, for example, with Figure 2 can be seen.

[0074] The Figure 6 shows an exploded view of a section of a battery 1 according to the invention.

[0075] The second housing element 3 is shown. Furthermore, the first element 8 of the battery control unit can be seen, which includes an electronic component 81. The electronic component 81 is integrated into a circuit board 90.

[0076] Furthermore, it can be seen that the first element 8 of the battery control is arranged on a side of the cover element 100 facing the interior 5.

[0077] Furthermore, the Figure 6 also the second element 9 of the battery control, which is arranged in a thermally conductive manner on a side of the second housing element 3 facing away from the interior 5. In this case, the second element 9 of the battery control is designed in particular as a DC-DC converter 92. In this case, the second element 9 of the battery control can, for example, be controlled by means of the Figure 4 shown screwing points 125 to the second housing element 3.

[0078] Figure 7 shows a perspective view of a top side of a first housing element 2. In particular, the interior 5 can be seen, which contains the majority of Figure 7not visible battery cells 6. Furthermore, temperature control fluid guides 153 are shown, which are formed within the first housing element 2. The temperature control fluid guides 153 are designed to fluidically connect a temperature control fluid inlet of the housing element to the temperature control fluid outlet of the other housing element, so that a parallel or serial flow can be formed.

[0079] Figure 8 shows in a perspective view a bottom side of the first housing element 2 according to Figure 7. In particular, the first temperature control structure 101 can be seen, which is arranged on a side of the first housing element facing away from the interior 5. In addition, the temperature control fluid inlet 163 of the further temperature control fluid receptacle 111 and the temperature control fluid outlet 164 of the further temperature control fluid receptacle 111 are shown. The first temperature control structure 101 is designed as flow guide elements 121, as flow disturbance elements 122 or as flow limits 123. At this point, it should be noted that a further cover element 14, which in the Figure 8 cannot be seen, is connected to the first housing element 2 in such a way that the further cover element 14 limits the further temperature control fluid intake in a fluid-tight manner with respect to the environment.

Claims

1. Battery comprising a first housing element (2) and a second housing element (3), which together form an interior space (5) for receiving a battery module (10), wherein a plurality of battery cells (6) of the battery module (10), which are connected in an electrically conducting manner to one another in series and / or in parallel, are arranged in the interior space (5), wherein the battery cells (6) are in particular prismatic and a first element (8) of a battery controller is further arranged in the interior space (5), wherein the first element (8) of the battery controller comprises at least one electronic component (81), which is a switch, a fuse element, a battery control system and / or a resistor, wherein the first housing element (2) forms a first temperature-control structure (101) on a side facing away from the interior space (5) and in particular the second housing element (3), wherein the second housing element (3) forms a second temperature-control structure (102) on a side facing the interior space (5) and in particular the first housing element (2), and a covering element (100) is connected to the second housing element (3) in such a way that the covering element (100) delimits a temperature-control fluid receptacle (112), through which a temperature-control fluid can flow, in a fluid-tight manner from the interior space (5) and the second temperature-control structure (102) is formed such that the temperature-control fluid can flow around it, wherein the first element (8) of the battery controller is arranged in a thermally conducting manner on a side of the covering element (100) that is facing towards the interior space (5).

2. Battery according to one of the preceding claims, characterized in that a second element (9) of the battery controller is arranged in a thermally conducting manner on a side of the second housing element (3) that is facing away from the interior space (5) and in particular the first housing element (2).

3. Battery according to either of the preceding claims, characterized in that the first element (8) of the battery controller further comprises at least one electrical component (80).

4. Battery according to preceding Claim 3, characterized in that the electrical component (80) of the battery module (10) is a cell connector (82) and / or a line (83).

5. Battery according to one of the preceding claims, characterized in that the at least one electronic component (81) is integrated in a printed circuit board (90).

6. Battery according to one of preceding Claims 2 to 5, characterized in that the second element (9) of the battery controller is an electrical voltage converter (91), in particular a DC-DC voltage converter (92).

7. Battery according to one of the preceding claims, characterized in that the covering element (100) is formed from a metal in a planar manner, or in that the covering element (100) has a shaped portion (110) for receiving the first element (8) of the battery controller.

8. Battery according to one of the preceding claims, characterized in that the plurality of battery cells (6) is arranged in thermally conducting contact with a first inner side of the interior space (5) that is arranged directly adjacent to the first temperature-control structure (101).

9. Battery according to one of the preceding claims, characterized in that the first housing element (2) and / or the second housing element (3) are each formed as diecast housings (20, 30).

10. Battery according to one of the preceding claims, characterized in that the first housing element (2) and the second housing element (3) are connected to one another in a fluid-tight form, wherein in particular a sealing element (131) is arranged between the first housing element (2) and the second housing element (3).

11. Battery according to one of the preceding claims, characterized in that a further covering element (14) is connected to the first housing element (2) in such a way that the further covering element (14) delimits a further temperature-control fluid receptacle (111), through which a temperature-control fluid can flow, in a fluid-tight manner from a surrounding area and the first temperature-control structure (101) is formed such that the temperature-control fluid can flow around it.

12. Battery according to one of the preceding claims, characterized in that the battery a first connector (151) formed to feed temperature-control fluid to the battery and a second connector (152) formed to discharge temperature-control fluid from the battery (1), wherein the battery has temperature-control fluid conduits (153) formed in such a way that temperature-control fluid can flow through the temperature-control fluid receptacle (112) and the further temperature-control fluid receptacle (111) in series or in parallel.

13. Battery according to one of the preceding claims, characterized in that the first temperature-control structure (101) and / or the second temperature-control structure (102) are each formed as flow-guiding elements (121), as flow-disrupting elements (122) or as flow-delimiting means (123).

14. Use of a battery (1) according to one of Claims 1 to 13 for temperature control and in particular for cooling the plurality of battery cells (6) and the first electrical component (8), wherein a temperature-control fluid formed as a temperature-control liquid or as a temperature-control gas flows around the first temperature-control structure (101) and wherein the temperature-control fluid formed as a temperature-control liquid flows through the temperature-control fluid receptacle (112).