CN104979601B

CN104979601B - Device for regulating the temperature of a battery

Info

Publication number: CN104979601B
Application number: CN201510235548.9A
Authority: CN
Inventors: S·鲍曼; T·科勒; D·尼特林
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2014-03-05
Filing date: 2015-03-04
Publication date: 2021-03-09
Anticipated expiration: 2035-03-04
Also published as: CN104979601A; DE102014203942A1

Abstract

The invention relates to a device for controlling the temperature of a battery and/or of a battery pack, in particular of a traction battery for driving a motor vehicle. The device comprises a temperature control fluid supply (10) which supplies a temperature control fluid to a substantially planar temperature control element (52, 54) via at least one temperature control connection (44). The planar temperature control elements (52, 54) are arranged on the temperature control interface (44) so as to overlap one another, or are connected to the temperature control interface (44) in a material-fit manner, or are sealed with respect to the temperature control interface (44) using at least one first seal (40).

Description

Device for regulating the temperature of a battery

Technical Field

The invention relates to a device for controlling the temperature of a battery or battery pack, in particular of a traction battery for driving a motor vehicle. The temperature control fluid supply device supplies a temperature control fluid to a temperature control element which is designed essentially flat via at least one temperature control connection.

Background

Hybrid Electric Vehicles (HEV) and Electric Vehicles (EV) require a battery system that is sufficiently powerful and powerful so that their Electric drive machines can output the desired driving power. It is nowadays preferred to use lithium-ion batteries or lithium-polymer batteries, which are energy-efficient and powerful and have on the order of about 100 battery cells, as electrical energy storage devices. The battery capacity of the high-power battery single cell is up to 63 Ah.

Due to the electrochemical conversion process, lithium-ion or lithium-polymer batteries heat up primarily during the energy output. The higher the power of the battery pack, the higher its temperature rise and the more indispensable an efficient and effective thermal management system, which heats the battery cells when cold and cools them when hot, where cooling is the most often required function of a thermal management system.

The reason for this is that the optimum operating temperature of the lithium-ion battery system is of the order of magnitude between +5 ℃ and +35 ℃. From an operating temperature of approximately +40 c, the life of the corresponding battery cell is shortened. Thus, meeting the life requirement of about 8 to 10 years can be achieved simply by sufficient thermal conditioning of the battery cell. This means that the battery cell is kept in all operating states in a thermally uncritical state with a temperature level below 40 ℃. In addition, in order to achieve the same aging process between the battery cells, the temperature gradient between the cells is also kept to the order of only 5K.

With regard to battery heating and battery cooling, the prior art discloses liquid tempering devices using a water/glycol mixture, which is guided via channels of a cooling plate mounted below the battery module or battery cell. The supply of the cooling liquid to the cooling plate is realized by a cooling water hose. The channels of the cooling plate are either configured as extruded profiles or as corresponding inlets.

DE 102009016576 a1 relates to a battery and its components and a method for the production and assembly thereof. A plurality of cell cooling plates each having a path for liquid coolant defined therein, the path communicating with the inlet collection guide hole and the outlet collection guide hole, are provided, wherein the plurality of cooling plates are stacked on each other. Thus, the inlet-and outlet collection guide holes of each plate are aligned with those of the adjacent plate and with each of the inlet-and outlet collection guide holes of the adjacent plate.

US 2011/0293982 a1 relates to a device for cooling a battery. A cooling module is disclosed having a frame with a plurality of legs forming an aperture in a central region of the frame. At least one of the legs includes a slit. The heat sink is coupled to the frame. The heat sink includes a curled plate disposed between a first plate and a second plate and forming some liquid flow channels between the first and second plates. The cooling modules are accommodated in a stack (Stapel) in which at least one battery cell is accommodated between cooling modules that adjoin one another. The battery cells are located in a heat transfer connection of at least one cooling module having heat sinks, wherein the heat sinks form a thermal energy transfer device between the battery cells and flow channels formed in the heat sinks.

DE 102011109306 a1 describes a modular carrier plate design for mounting and embedded cooling of bag-type cell arrangements

The modularly constructed device comprises a plurality of U-shaped components with coolant channels, wherein the U-shaped components are fixed to one another in a stacked manner. Each coolant channel includes an inlet and an outlet, wherein the openings in the stacked U-shaped members are aligned with each other. The modular arrangement further comprises a plurality of thermally conductive carrier plates, wherein the battery cells are mounted on and between the opposite carrier plates. The lateral edges of the carrier plate are received in opposing fixing slots of opposing U-shaped parts, wherein in the U-shaped parts cooling liquid channels are provided in the fixing slots, so that the cooling liquid flowing through the cooling liquid channels and the U-shaped parts comes into contact with the carrier plate and absorbs its heat.

Cooling water systems are required to have a very high tightness to avoid leakage. However, there is no liquid detection within the cell housing and on the electronic components. The disadvantage is that leakage can never be completely avoided, since it occurs over the entire battery-life. Furthermore, the various interfaces between the cooling water hoses and the cooling plate are located in the battery housing, which can lead to further potential leakage locations, which, moreover, are in a disadvantageous manner next to the electronic components. Therefore, there is a risk that the temperature control liquid flowing out may cause a short circuit inside the battery.

Disclosure of Invention

According to the invention, a device for tempering a battery or an entire battery pack, in particular a traction battery for driving a motor vehicle, by means of a tempering fluid supply is proposed, which supplies a substantially planar tempering element with the tempering fluid via at least one tempering interface, wherein the planar tempering elements are arranged one above the other on the tempering interface or are connected to the tempering interface in a material-to-material manner, but can also be sealed with respect to the tempering interface using a sealing element.

The solution proposed according to the invention advantageously makes it possible to completely dispense with a hose system that is prone to leakage. In the case of components for both dispensing and collecting the tempering liquid, the use of a planar tempering element is straightforward, which brings about great safety-relevant and cost-effective advantages, since the hoses mentioned can be completely dispensed with and measures for ensuring the tightness of the tempering system can be significantly reduced.

In a further advantageous development of the concept on which the invention is based, the planar temperature control element is penetrated by at least one passage through which the temperature control fluid flows. The channel of the planar temperature control element can be designed either as an inlet or as an extruded profile. The planar temperature control element is usually made of a material with good heat conductivity, so that a better heat transfer to the battery or battery pack to be temperature controlled is possible via the planar temperature control element. The solution proposed according to the invention makes it possible to heat the battery or the battery pack when the ambient temperature is low, with a corresponding heating of the tempering fluid, and, during operation or when the ambient temperature is high, makes it possible to cool the battery or the entire battery pack substantially without leakage, depending on the cooled tempering fluid, with the solution proposed according to the invention.

In a further advantageous embodiment of the concept on which the invention is based, the planar temperature control element has at least one opening for the inflow or outflow of the temperature control fluid. The temperature control liquid flows back and in through these holes.

In one embodiment of the device for tempering battery cells according to the invention, the planar tempering elements have narrowings designed complementary to one another, which form sealing surfaces in the composite body formed by the planar tempering elements. In these design variants, the temperature control element, which is designed in a planar manner, is designed to be flat. The composite body of the planar temperature control element is advantageously sealed by at least one, preferably two, sealing parts which are formed in a block-like manner. In the case of an intermediate connection of the annular seal, the two sealing portions, in the overlap region, enable the planar temperature control elements to be pre-clamped against one another with a sealing action. The annular seal can be designed as an O-ring.

In a further advantageous embodiment of the concept on which the invention is based, the temperature control element, which is designed in a planar manner, is designed in a stepped, curved or angled manner within the overlap region. A compact layout can thereby be achieved in an advantageous manner; furthermore, when the planar temperature control elements are arranged symmetrically, which are curved, stepped, arched or angled, the same components can be used in an arrangement on top of one another.

The openings of the planar temperature control element are arranged in an overlap region of the planar temperature control element, which overlap region is located above or below the temperature control connection, so that the openings are aligned with one another, through which the temperature control element opens the duct into the planar temperature control element. Furthermore, not only are the openings of the planar temperature control elements aligned with one another, but these openings are also aligned with the supply channel, which leads, for example, to the upper planar side or to the lower planar side of the temperature control connection. In one possible embodiment, a horizontal seal, preferably formed by two sealing portions and annular sealing elements, can be achieved by the coated arrangement of the planar temperature control elements on top of one another; however, there is also the possibility of achieving a vertical sealing of the planar tempering element with respect to the tempering interface. According to this embodiment variant, the planar tempering element, which is designed flat for example, has flanges at its edges, which are connected to the through-channels designed in the tempering interface, for example, by a material-fit connection. The through channel of the temperature control interface is supplied via a supply channel which is itself supplied by the temperature control liquid supply means.

In a further advantageous embodiment of the solution proposed according to the invention, the sealing head designed with a double-hole screw can be inserted into a composite body consisting of planar temperature control elements arranged one above the other, which are planar or are designed in a stepped, curved or angled manner. The double-hole screw used is characterized in that it has a built-in, mutually separated liquid-conducting contour. These liquid-conducting contours can be, for example, separate channels through which both the inflow and the return of the temperature control liquid can be realized.

In particular, the solution proposed according to the invention can be used for tempering, i.e. heating or cooling, a traction battery of a Hybrid Electric Vehicle (HEV) or an Electric Vehicle (EV).

The advantage of the solution proposed according to the invention is primarily that the hose systems used hitherto, which are prone to leakage, can be dispensed with. The planar tempering element is connected to the tempering interface on a straight path, for which only an annular seal is required. The sealing is effected by sealing parts which can be clamped against one another, or for example by the flat sides of a double-hole bolt which is inserted into a composite body consisting of a flat temperature control element. The solution proposed according to the invention is characterized by a lifetime which is completely comparable to that of batteries, battery packs for traction batteries for hybrid vehicles and/or for electric vehicles. In addition, the tempering interface is advantageously designed in a suitable manner, so that it forms a common component for distributing and collecting the tempering liquid, and has considerable safety-relevant advantages. In the case of planar temperature control elements designed as identical components, for example, planar temperature control elements designed in steps, bends or angles can be constructed in a compact manner when they are arranged symmetrically and at the same time can be produced at a reduced cost when identical components are used.

Since no hose is used anymore, more installation space can be provided by the solution proposed according to the invention. Hose installation, which hitherto has been carried out mainly manually, is no longer required today. Manually installing the hose is rather laborious, since a large insertion force is required due to sealing problems. Furthermore, manual hose deployment is always a source of error due to damage to the seal that may occur during installation. The components of the interface can be integrated into the battery housing by means of the design variants proposed according to the invention; on the basis of the solution proposed according to the invention, a significantly better disassembly is also possible, and significantly easier accessibility is also achieved compared to solutions according to the prior art.

Drawings

The invention is described in detail below with the aid of the figures. In the drawings:

fig. 1 shows a first design variant of a device (here a planar cooling element designed flat) which is connected to a coolant feed;

fig. 2 shows the direct connection of two stepped planar temperature control elements to a temperature control connection;

fig. 3 shows a further design variant of the direct connection of a flat temperature control element, which is designed to be flat, to a temperature control connection, which is supplied by a temperature control medium supply;

fig. 4 shows a direct connection of a planar tempering element provided with a flange, which is designed flat, to a tempering interface;

fig. 5 shows the direct connection of two planar temperature control elements, which are designed in a stepped manner and overlap one another in an overlap region, using a double-hole screw;

FIG. 6 shows a cross-sectional view of a double-hole bolt used as a seal;

fig. 7 shows a perspective view of the inflow channel and the return channel of the temperature-adjusting liquid.

Detailed Description

Fig. 1 shows a composite (Verband) of planar temperature control elements which are arranged one above the other and are connected to a temperature control medium supply.

Fig. 1 shows in a schematic way a tempering liquid supply 10 comprising a sleeve 12. The sleeve 12 is an inflow channel 14 for the temperature control liquid. The sleeve 12 is embedded in a composite body of a first planar temperature control element 16 and a further second planar temperature control element 20. The two planar

temperature control elements

16 and 20, which are designed flat in fig. 1, are penetrated by at least one first passage 18 and at least one second passage 22 for a temperature control liquid, respectively. The

passages

18, 22 for the temperature control fluid (which may be a water/glycol mixture, for example) are produced in the planar

temperature control element

16 or 20, which is designed to be flat, by inlets or also by extruding profiles.

Fig. 1 shows a composite of two coated flat

temperature control elements

16 and 20 arranged one above the other. The two planar

temperature control elements

16 and 20, which are designed to be flat, rest against one another along a butt joint 24. Meanwhile, the butt joint 24 is a sealing surface 34 extending in a horizontal direction. The butt joint 24 is located in an overlap region 25 in which the two planar

temperature control elements

16 and 20 are designed with a first narrowing 30 and a second narrowing 32. The two

narrowings

30 and 32 are designed complementary to one another, so that the overlapping arrangement of the planar temperature control elements, i.e. the first planar temperature control element 16 and the second planar temperature control element 20, shown in fig. 1, results. The first planar side of the upper flat, planar

temperature control element

16 or 20 is designated by reference numeral 26, and the second planar side of the lower flat, planar

temperature control element

16 or 20 is designated by reference numeral 28.

The composite body formed from the planar

temperature control elements

16 and 20, which are arranged one above the other, is clamped in a sealing manner against one another by a first sealing section 40, which is formed in the form of a block here, and a second sealing section 42, which is likewise formed in the form of a block here. In each case, there is a recess in both sealing

parts

40 and 42, which are both designed in the form of a block, in which recess an annular first sealing element 36, for example an O-ring, can be inserted in the first sealing part 40, and in which recess a second sealing element 38, which is also designed in the form of an annular ring, for example an O-ring, can be inserted in the second sealing part 42. The sealing surface 34 and the two

annular seals

36 and 38 inserted into the sealing

portions

40 and 42 produce the horizontal sealing mechanism 60 shown in fig. 1. The device shown in fig. 1 has no hose and is distinguished in particular by a long service life.

Fig. 2 shows a further possible embodiment of the solution proposed according to the invention, which provides for two stepped planar temperature control elements to be connected directly to a temperature control connection which is itself supplied by a temperature control fluid supply.

As can be seen from fig. 2, the tempering interface 44 comprises at least one supply channel 46 which is supplied by the tempering liquid supply 10. In the case of a tempering fluid supply 10, which is only schematically illustrated here, the tempering fluid, for example a water/glycol mixture, is heated if necessary when the external temperature is low, and is cooled if the external temperature is high or if the operating temperature of the battery or battery pack to be cooled is reached.

Fig. 2 shows that in the overlap 25 of the two planar

temperature control elements

52 and 54, which are stepped in this case, the

holes

53 and 55 formed in these temperature control elements are aligned with one another. In addition, the composite body formed by the planar

temperature control element

52 or 54, which is stepped in this case, is aligned with the opening of the supply channel 46, which, in this variant, leads to the top side of the temperature control connection 44. The first sealing 40, which seals the opening 55 in the planar, here step-shaped second temperature control element 54 to the outside, is located on the first planar side 26 of the uppermost, here step-shaped planar second temperature control element 54. The annular first sealing element 36 is located between the first sealing section 40, which is designed in a schematic manner here as a block, and the planar, here, stepped second temperature control element 54; the annular second sealing element 38 is located between the planar second temperature control element 54, which is designed in a stepped manner here, and the planar first temperature control element 52, which is designed in a stepped manner here, while the annular third sealing element 48, which can likewise be designed as an O-ring, is located below the planar second planar side of the first temperature control element 52, which is designed in a stepped manner here.

The

annular seals

36, 38 and 48 mentioned seal the first seal 40, the planar second temperature control element 54, which is formed in a stepped manner here, and the planar first temperature control element 52, which is formed in a stepped manner here, against one another and against the upper planar side in the region of the opening of the supply channel 46.

The temperature control connection 44 itself has a fourth seal 49, which is likewise of annular design and seals the temperature control connection 44 against the base plate 50. The fourth seal 49, which is also of annular design, is an optional, predefinable component, which is however necessary for achieving a sealed battery.

Fig. 3 shows the direct connection of a planar temperature control element, which is designed to be flat, to the temperature control connection via an annular seal and a first seal.

Fig. 3 shows in a schematic manner that in this possible design of the solution proposed according to the invention, the opening 53, which extends from a planar, flat tempering element 56 penetrated at least by the

channels

18, 22, is sealed both with respect to the tempering interface 44 and also outwardly by the first sealing 40, which is in this case formed in block form. The annular first seal 36 is located between the first sealing section 40 and the first planar side 26 of the planar, flat first temperature control element 56; the annular second seal 38 is arranged between the temperature control connection 44 and the second planar side 28 of the planar, in this case flat, first temperature control element 56. The two

annular seals

36, 38 and the first seal 40 seal the supply duct 46 extending within the temperature control connection 44 against a planar, flat first temperature control element 56. The bottom plate 50 is sealed by an annular fourth seal 49; a supply channel 46, which extends through the tempering connection 44 and opens onto the upper, flat side thereof, is supplied by the tempering liquid supply device 10. The design variant of the solution proposed according to the invention shown in fig. 3 is also designed without a hose in terms of conducting the tempering liquid.

Fig. 4 shows another possible design for connecting two flat, flanged, planar tempering elements directly to a tempering connection which is itself supplied by a tempering liquid supply.

As can be seen from fig. 4, in this embodiment variant, the two planar, flat

temperature control elements

56 and 58 each have a

flange

64 and 66 at their ends facing the temperature control interface 44. The two

flanges

64 and 66 can either be connected to the lateral surface of the temperature control port 44 by a material fit with the first and second

annular seals

36, 38 being interposed therebetween, or can be connected to the temperature control port in a sealing manner in some other way. In addition to the supply channel 46 which is supplied by the tempering liquid supply 10, the tempering connection 44 also has a through channel 68 which opens out laterally on both sides in the region of the

flanges

64, 66 which can be connected to the tempering connection 44. Furthermore, according to fig. 4, the temperature control connection 44 is partially covered by a base plate 50, below which a fourth seal 49, which is likewise embodied in a ring shape, is located. By connecting the

flanges

64, 66 directly laterally to the dome-shaped raised side of the temperature control interface 44, a vertical sealing mechanism 62 is achieved in the design variant according to fig. 4, in contrast to the design variants of fig. 1, 2 and 3 of the solution proposed according to the invention.

Fig. 5 shows a further possible design for connecting two planar temperature control elements, here embodied in a stepped manner, directly to a temperature control connection which is itself supplied by a temperature control fluid supply.

Fig. 5 shows a design which is substantially similar to the design variant of the solution proposed according to the invention which has already been explained in connection with fig. 2.

In contrast to the design variant according to fig. 2, instead of the first sealing 40, which is shown in block form in fig. 2, on the top of the composite body consisting of the planar

temperature control elements

52, 54, which are stepped in this case, the

hole

53 or 55, through which the sealing 70, which is designed in particular as a double-hole screw, penetrates the temperature control element, is located in the composite body shown in fig. 5. According to fig. 5, the seal 70 is advantageously designed as a double-bore bolt. The double-hole bolt includes a bolt head 72, a bolt shaft 74 connected to the bolt head. Liquid-conducting contours, for example channels, which are separate from one another, extend within the screw shank 74. For supplying the tempering liquid or for discharging the tempering liquid from the two planar, here step-shaped, tempering

elements

52, 54 lying one above the other inside the overlap region, the inflow and return of the tempering liquid is achieved by the profile of the guide liquid extending inside the screw shaft 74.

The second planar side 82 of the bolt head 72 of the seal 70 corresponds to the first sealing portion 40 used in the design variant according to fig. 2 and 3 of the solution proposed according to the invention. The annular first sealing element 36 bears against the first planar side 26 of the planar, here stepped, second temperature control element 54 by means of the screw head 72 or its second planar side 82. The first planar side of the bolt head 72 is marked 80. The second planar side 28 of the second temperature control element in turn acts on an annular second sealing element 38, which abuts against the first planar side 26 of a planar, in this case stepped, first temperature control element 52. The second planar side 28 of the second temperature control element, after the corresponding pre-stressing of the double-hole screw, again presses a third sealing element 48, which is likewise of annular design, and makes it bear against the upper planar side of the temperature control connection 44. A horizontal sealing mechanism 60 shown in fig. 5 is formed.

When the first bore 76 in the bolt shank 74 of the double-bore bolt is aligned with the channel system formed in the interior of the planar, here step-shaped, second temperature control element 54, the second bore 78 in the bolt shank 74 of the double-bore bolt is aligned with the channel system, not shown in fig. 5, which is formed in the interior of the planar, here step-shaped, first temperature control element 52.

Fig. 6 shows a cross-sectional view of a double-hole bolt used as a seal.

As can be seen from the sectional view in fig. 6, the double-hole screw has at least one channel 88 extending in the vertical direction, which channel here forms, for example, the inflow channel 14 for the temperature control fluid. The channels 88 open into the

bores

76, 78 of those channels for the

tempering elements

52, 54 of the first and second step shown in section in fig. 5 to which the tempering liquid is applied, respectively. For reasons of illustration, the part of the double-bore bolt serving as the seal 70, which is provided, for example, for the return channel 86 of the tempering liquid, is not shown. A further channel running parallel to the channel 88 shown in fig. 6, which is likewise connected to a transverse connection, not shown, leads the tempering liquid to the tempering liquid supply 10 after passing through the stepped first and

second tempering elements

52, 54. The double-hole bolt used as the seal 70 comprises a bolt head 72 to which a bolt shaft 74 is connected, in which a channel system for the tempering fluid-only inflow channels being shown here-is designed.

Fig. 7 shows a perspective top view of the stepped first and second temperature control elements.

Fig. 7 shows in a schematic way that a return 86 for the tempering liquid is located behind the inlet 84. The two stepped

temperature control elements

52 and 54 overlap within the overlap region 25, as can also be seen from fig. 5. Due to the selected cut-out in particular in fig. 5, the return flow 86 of the tempering liquid is always covered by the inflow flow of the tempering liquid and is not shown for this reason.

The device described above with reference to fig. 1 to 7 allows temperature control in all its design variants, which means that the battery, the entire battery pack, in particular the traction battery for a hybrid or electric vehicle, is cooled or heated. The inflow temperature of the temperature-adjusting liquid is adjusted in the temperature-adjusting liquid supply mechanism 10 according to the external temperature or the operating temperature of each battery cell, battery module, or the entire battery pack, so that the battery or the entire battery pack can be effectively cooled when the external temperature is high in a hot season, and can be heated when the temperature is below zero in a cold season, so as to secure an optimum operating temperature of the lithium-ion-battery system of about +5 ℃ to +35 ℃. The solution proposed according to the invention makes it possible to reliably maintain the operating temperature of the lithium-ion battery or battery pack preferably used below +40 ℃, so that damage to its lifetime is avoided.

The present invention is not limited to the embodiments described herein and the aspects emphasized therein. Rather, a number of modifications are possible within the scope defined by the claims, all of which are within the reach of the person skilled in the art.

Claims

1. A device for tempering batteries or battery packs, having a tempering fluid supply (10) which supplies a tempering fluid to a substantially planar tempering element (16, 20, 52, 54, 56, 58) via at least one tempering connection (44),

the temperature control device is characterized in that the planar temperature control elements (16, 20, 52, 54, 56, 58) are arranged on the temperature control interface (44) so as to overlap one another, wherein the planar temperature control elements (16, 20) have narrowings (30, 32) which are designed complementarily to one another and form a sealing surface (34).

2. The device according to claim 1, characterized in that the planar temperature control element (16, 20, 52, 54, 56, 58) is connected to the temperature control connection (44) in a material-locking manner.

3. The device according to claim 1, characterized in that the planar temperature control element (16, 20, 52, 54, 56, 58) is sealed with respect to the temperature control interface (44) using at least one first seal (40).

4. Device according to claim 1, characterized in that the planar temperature control element (16, 20, 52, 54, 56, 58) is penetrated by at least one passage (18, 22) for a temperature control liquid.

5. Device according to one of the preceding claims, characterized in that the planar temperature control element (16, 20, 52, 54, 56, 58) has at least one opening (53, 55) for an inflow (84) and a return (86) for a temperature control fluid.

6. Device according to claim 1, characterized in that the composite of planar temperature control elements (16, 20, 52, 54) is sealed by at least one first seal (40) and at least two annular seals (36, 38).

7. The device according to claim 6, characterized in that the annular seals (36, 38) are designed as O-rings.

8. The device according to claim 5, characterized in that the planar temperature control elements (52, 54) are formed in a stepped, curved or angled manner within the overlap region (25).

9. Device according to claim 8, characterized in that the holes (53, 55) of the planar temperature control elements (16, 20, 52, 54) are aligned with each other in the overlap region (25) and with at least one supply channel (46) of the temperature control interface (44).

10. The device according to claim 1, characterized in that the planar temperature control element (16, 20, 52, 54) is sealed by a horizontal sealing mechanism (60).

11. The device according to claim 1, characterized in that the planar tempering element (56, 58) has a flange (64, 66) which is sealed in a vertical sealing mechanism (62) with respect to the tempering interface (44).

12. The device according to claim 1, characterized in that the composite of planar temperature control elements (52, 54) comprises a sealing element (70).

13. The device according to claim 12, characterized in that the seal (70) has a second planar side (82) which acts against the annular first seal (36).

14. The device according to claim 13, characterized in that the bolt shank (74) of the seal (70) has a first hole (76) for the inflow of a tempering liquid and another second hole (78) for the backflow of the tempering liquid.

15. The apparatus of claim 1, wherein the battery is a traction battery used to power a vehicle.

16. Device according to claim 11, characterized in that the flanges (64, 66) are sealed in a vertical sealing mechanism (62) with respect to the tempering interface (44) by a material-fit connection.

17. The device according to claim 12, characterized in that the seal (70) is a double-hole bolt with a built-in liquid-guiding profile.

18. The device according to claim 17, characterized in that the built-in liquid-guiding contour is at least one channel (88) for an inflow (84) and a return (86) of a tempering liquid.

19. Use of a device according to one of claims 1 to 18 for tempering a traction battery of a Hybrid Electric Vehicle (HEV) or an Electric Vehicle (EV).