DE19503085A1 - Battery for effective temp. control - Google Patents

Abstract

In a battery module with several electrochemical storage accumulators (cells) and with the cells having electrically insulating units acting also as channels for a temp. control liq., the unit is formed as a pouch, with internal temp. control units (3,3',3'') for a liq. coolant, closed hermetically from the inlet and outlet. The size of the unit towards the flat side (4) of a cell case (5) of a cell (6) corresponds to the flat side (4), and lies against the flat side (4) to allow of heat-transfer.

Description

The invention relates to a battery module with several electro chemical store according to the preamble of claim 1 as he from the generic DE 41 16 253 as be knows emerges.

DE 41 16 253 discloses a battery box for a Battery module which battery module multiple electrochemical Memory, hereinafter called cells. The cell tightness housing of the individual and with cell connector on the pole side elec cells that are interconnected are made of metal, whereby they have good heat transfer. That warmth Passage is particularly important for the temperature control of the cells tig because the temperature is a decisive criterion for the u. a. chemoelectric parameters of the cells. So the temperament over the entire area of the cell are between flow around the flat sides of cell housings of neighboring cells mung channels arranged by the flat sides of the concerned Cell housings are limited and in which a tempering Fluid flows through. The cell housings are made by built-in parts Made of electrically insulating material that is made as a spacer formed and arranged in the area of the corners of the cell housing net, are spaced apart on the flat side. To supply the flow channels, the battery box in inside one fluidically with the flow channels connected inflow channel and one at the opposite end of the Flow channel arranged discharge channel. The mass through flow through from the inflow channel with the tempering fluid flow channels supplied in parallel must be approximately the same half of the clear cross section of the inflow channel turns into flow  direction of the fluid flowing through in and reduced the clear cross section of it with regard to a flow channel arranged opposite and fluidly ver with it bound discharge channel widens in the direction of flow. The Tempering can be done with an electrically insulating gas or egg ner non-conductive liquid such as oil. With a gas a high volume throughput is required. With a liquid However, the volume throughput is lower, however good sealing must be ensured, since u. a. Air blow in the channels very disadvantageously to the temperature equal effect of the cells, or the liquid escapes through leak.

Despite the advantages of the known battery module, at which the cells u. a. can be put together as required especially with "breathing cells", ie with cells that Discharge or charge change their volume, always problems in the temperature control of the cells within the battery module.

The object of the invention is that of the generic type put battery module in such a way that a as uniform and as possible over the volume of the battery module effective temperature control is possible.

In a battery module, the task is identified by the solved the features of claim 1. By introducing the pocket-like and always the same over-Al over their surface les-tempering elements between the cells of the Battery module or in the flow channels of the battery box, on the one hand is tempering with a liquid Fluid with high heat capacity enables and on the other hand the distance between two neighboring cells is always the same hold.

Advantageous embodiments of the invention are the dependent claims Chen removable. Otherwise, the invention is based on in  Illustrated embodiments illustrated. Here shows

Fig. 1 is a side view of a battery box having a battery module disposed therein according to the invention,

Fig. 2 shows a possible temperature-with connection nipples,

Fig. 3 shows the formation of a possible supply and / or egg nes disposal channel for a tempering element according to Fig. 2,

Fig. 4 conductors, a further tempering with integrated hollow,

Fig. 5 is a section through the tempering of FIG. 1 along the line VV,

Fig. 6 tempering a section of the battery box according to Fig. 1 provided with a plurality of waveguides according to FIG. 4,

Fig. 7 shows a detail of a plurality of sealing to each other arranged with an integrated temperature-intermediate part,

Fig. 8 is a side view of another battery module, which has its bottom side aligned to successively arranged cells

Fig. 9 is a horizontal section through a battery module of FIG. 8 along the line IX-IX and

Fig. 10 is a front view of a front side of the battery module of FIG. 8.

In Fig. 1, a battery case 20 with the cover removed is shown in a vertical section, in which a battery module formed from a plurality of electrochemical memories, hereinafter referred to as cells 6 , is arranged. The wall of the battery box 20 is gebil det through the side walls and the end walls. The battery box 20 is provided for the ge of sixty cells 6 formed battery module, wherein the stair-like established cells are stacked in five rows of cells 6 to each of twelve cells. 6 This type of installation creates a wedge-shaped free space underneath the row of cells. Between the cells 6 of a row of cells temperature control elements 3 , 3 ', 3 ''are arranged, which can be flowed through on the inflow side with a supply channel 14 and on the outflow side with a disposal channel 15 and are connected to the outside in a sealing manner.

The individual temperature control elements 3 , 3 ', 3 ''at least one of each row of cells are connected in parallel with respect to a supply channel 14 for the fluid and with respect to a disposal channel 15 for the fluid, so that an approximately equal temperature of the cells 6 of a row of cells is ensured.

This circumstance is favorable for the cells 6 of a row of cells and in particular the battery module or the battery case 20 to function properly. In a fluidic parallel connection of temperature control elements 3 , 3 ', 3 '', it makes sense to have the corresponding supply channel 14 with a cross section that decreases in the flow direction (arrow A) of the fluid and the corresponding disposal channel 15 with a cross section in the flow direction (arrow A) expanding cross-section hen, the amount of the reduction in cross-section of the supply duct 14 or the cross-sectional expansion of the supply duct 15 advantageously to the volume of the temperature elements 3 , 3 ', 3 ''flowing in or out of the temperature elements 3 , 3 ', 3 '' flowing fluid is matched.

The pocket-like and internally fluid-flowable temperature control elements 3 , 3 ', 3 ''are designed for tempering the liquid fluid, the flat sides of the temperature control elements 3 , 3 ', 3 '' approximately the area of a flat side 4 of the cell housing 5 correspond to a cell 6 . For a good heat transfer, each temperature control element 3 , 3 ', 3 ''bears against the associated flat side (s) 4 of an associated cell (s) 6 . The heat transfer is advantageously improved by the fact that the walls 8 of the temperature-regulating elements 3 , 3 ', 3 ''lying against the cell housings 5 are smooth on the outside and roughened on the inside, that is to say on the fluid side, which is caused by sandblasting or a corresponding processing when producing the walls 8 can be realized.

This provides for the fluid a wide range also at ionenlei Tenden liquids, thus in particular also shifted with the freezing point depressants water, is each tempering 3, 3 ', 3' to each have an inlet 1 and an outlet openings 2 in fluid-tight ' closed.

The fluid, advantageously an antifreeze / water mixture, expediently flows through a closed circuit (not shown), which is expediently provided outside the battery box 20 with a water / air cooler (not shown) known from automotive technology.

Here, in the application of a battery module arranged in the battery box 20 for a traction battery of motor vehicles, it can be particularly advantageous if the water circuit of the battery module is possibly connected to the cooling water circuit of the vehicle via control mechanisms and / or control elements.

The battery box 20 has for further position fixation of the cell len 6 in the battery box 20 , thus also for stabilization in the case of vibration stresses and also for the constant tempering of the cells 6 on the respective end walls 21 two temperature control elements 3 , 3 ', 3 '', which the Support cells 6 against the end walls 21 . To stabilize the rows of cells on the bottom, transverse anchors are also arranged parallel to the end walls 21 , it being possible for the transverse anchors to be surrounded by spacer sleeves in the respective region of a row of cells. However, it is important to ensure that the cross anchors are not arranged in the flow area of the fluid or a component that conducts the fluid.

Depending on the intended use of such a battery box 20 , it is also conceivable that the direction of flow (arrow A) of the fluid can be reversed, with which the previous supply channel 14 would correspond to the disposal channel 15 with the same structural design of the battery box 20 and the battery module. At the outlet of the fluid from the battery box 20 , a suction pump 22 can preferably be attached, whereby the volume flow of the tempering fluid can be regulated. Furthermore, it is also conceivable to install a heater (not shown) in the flow of the fluid if, for. B. the cells 6 are to be heated.

Since the battery module of the battery case 20 of this embodiment has, for example, a plurality of rows of cells arranged parallel to one another, the individual rows of cells are separated by intermediate walls running parallel to the side walls. This intermediate walls thus serve on the one hand to fix the cells 6 and z. B. in the case of using cells 6 with Metallge to isolate the rows of cells from each other, which is why they are advantageously made of an electrically insulating material. So that the load on the bottom 23 of the battery box 20 can be well divided by the cells of the battery module, it is expedient to design the intermediate walls as supports down to the bottom 23 of the battery box 20 .

In order to further stabilize the cells 6 of the battery module set in the battery box 20 , the metallic cell connectors 25 electrically connecting the poles 24 of the cells 6 are designed to be mechanically rigid, so that the cells 6 are also held at their poles 24 on the top side. To avoid electrical short circuits between the poles 24 and a box cover, which may be made of sheet metal, plastic caps can be pushed over the pole screws or nuts and the cell connector 25 in the central region, for. B. isolated with heat shrink tubing.

In the manner shown, a rigid, rigid and self-supporting battery box 20 is obtained . Due to the rigidity of this device, the battery box 20 can be built with a weight that is only about 5% of the weight of the set cells 6 .

In Fig. 2, a temperature control element 3 is shown in section parallel to its flat side. So that the fluid has an approximately similar temperature over the entire surface, 3 guide webs 7 are arranged in the interior of a temperature control element for the fluid flow. The guide bars 7 form within the Temperierele element 3 a distribution channel 9 and a collecting channel 10 , which are also formed by guide bars 7 and parallel to each other aligned through-flow channels 11 are connected to one another ver.

For a uniform flow through the flow channels 11 , which have a constant and mutually corresponding flow-through cross-section, the distribution channel 9 has a cross-section that decreases in the flow direction (arrow A) of the fluid and the collecting channel 10 has a cross-section that widens in the flow direction (arrow A). The amount of reduction in cross section of the distribution channel 9 and the cross-sectional enlargement of the collecting channel 10 is for both channels 9 and 10 are identical and usefully adapted to the effluent or to flowing fluid.

So that with a simple construction through all through-flow channels 11 an approximately similar through-flow with the fluid and thus a uniform temperature control of a cell 6 is ensured, in addition to the cross-sectional changes of the distributor channel 9 or collecting channel 10, the inlet 12 of the fluid into the distributor channel 9 is diametrical arranged opposite the outlet 12 of the fluid from the collecting channel 10 .

In the illustrated embodiment of the temperature-3 of Fig. 2, the inlet opening 1 of the fluid in the Tem perierelement 3 and the discharge opening 2 is arranged the fluid from the tempering element 3 on the same narrow side of the tempering elements 3, to which the narrow sides of the tempering elements 3 forming Frame is interrupted at these two locations.

Expediently, the inlet 1 and the outlet opening 2 to be the bottom side of the battery box 20 is arranged, whereby the respectively ordered to supply 14 and exhaust duct 15 in the area of the bottom 23 of the battery box 20 can be placed. A battery box which ensures such an arrangement is, except for the congruent alignment of the cells 6 of a row of cells, almost identical to the battery box 20 according to FIG. 1.

The arrangement of the supply 14 and disposal channel 15 in the region of the bottom 23 of the battery case 20 has the advantage that, with a low construction effort, a separation of the electrical lines (cell connector 25 and the like) and the fluid-conducting components (supply 14 and disposal channel 15 ) is made possible in a simple and expedient manner. For example, the electrical lines and / or the components that conduct the fluid can be checked separately from one another. Of course, the supply channels 14 and disposal channels 15 can also be arranged above the poles of the cells 6 or laterally on the cell rows.

So that with such a construction the inlet 12 of the fluid in the distribution channel 9 can be arranged diametrically opposite the outlet 13 of the fluid in the collecting channel 10 , the collecting channel 10 or the distribution channel 9 has between the respectively assigned inlet 12 or corresponding to the assigned one Outlet 13 and the respective inflow opening 1 or accordingly the respective outflow opening 2 on a connecting channel 26 . In the present case, the distribution channel 9 is arranged in the area of the inflow 1 and the outflow opening 2 , so that the fluid must advantageously be pressed against gravity by the through-flow channels 11 , which facilitates the ventilation and thus a uniform flow through the through-flow channels 11 . The collecting duct 10 is arranged on the cover side and its outlet 13 is connected to the bottom-side outflow opening 2 by the connecting duct 26 which preferably has the same flow-through cross-section as the through-flow ducts 11 . Since it is a completely filled temperature control element 3 is thus a fluidic connection between the distribution channel 9 and the flow opening 2 , the outflowing fluid simultaneously acts on a so-called in the direction of the inflow opening 1 , which just if the desired ventilation or even flow through the flow channels 11 is relieved.

The material of the guide webs 7 is expediently a material that is insensitive to the liquid. Furthermore, it is advisable to choose a largely dimensionally stable material, since with the guide webs 7 together with the outer flat sides 4 forming walls 8 define the distance between the cells 6 , the cross measured to the flat sides 4 of the cells 6 over -All-dimension of the temperature control element 3 is advantageously less than 2.5 mm, in particular less than 2 mm.

A slight elasticity of the guide bars 7 and / or the walls 8 of the temperature-3 can sen as low Erwei to this, as this tolerances of the inside of the cells 6 of a battery module and / or battery box 20 to be arranged components can be compensated for in a simple manner.

As a material for in particular the walls 8 of the temperature-3, elastomers have as polychloroprene rubbers (CR), Co polymers of styrene and butadiene (SBR), butyl rubbers (IIR), vinyl-silicone rubbers (VMQ), fluorine rubbers (FKM ), Fluorosilicone rubbers (FVKQ), ethylene / propylene-diene terpolymers (EPDM) etc., and also thermoplastic elastomers such as thermoplastic polyolefins (TPO) have proven their worth. For reasons of heat transfer, the walls 8 of a temperature control element 3 with a small wall thickness should preferably be less than 0.3 mm, in particular less than 0.2 mm.

Another advantage of these materials is that the walls 8 of the temperature control element 3 have an electrically insulating effect, which is particularly advantageous in the case of cells 6 with a cell housing 5 made of metal. For better heat transfer, this material can still be mixed with a good heat-conducting material.

Especially advantageous has proven to manufacture the walls 8 and the guide bars of chloroprene, was being used for the walls 8, a fabric-reinforced chloroprene and for the guide bars 7 is a ge webefreies chloroprene having a hardness of at least 70 shore.

The temperature control elements 3 , 3 'and 3 ''can be produced by means of separate components, z. B. the guide webs 7 and the frame placed in a template, the first wall of the temperature control element 3 , 3 ', 3 ''glued, and after removing the glued to the guide webs 7 wall from the template, the second, the first wall opposite second Wall of the respective temperature control element 3 , 3 ', 3 ''is glued. The connecting nipples 16 can then be attached in particular by gluing and / or vulcanizing. The prefabrication of the individual components of a temperature control element 3 , 3 ', 3 ''is advantageously carried out by punching or water jet cutting.

Another sensible procedure for producing the temperature control elements 3 , 3 ', 3 ''is described below. The respective tempering element 3 , 3 ', 3 ''is made in the narrow side ge divides, and these two halves are joined together by in particular gluing and / or vulcanizing. The advantage here is that the connection nipple 16 can be formed simultaneously with the halves.

FIG. 3 shows a supply duct 14 or a disposal duct 15 for a temperature control element 3 according to FIG. 2. The supply channel 14 differs from the disposal channel 15 only in that, despite its identical design with respect to its cross-sectional change in the direction of flow (arrow A), it is reversed, the flow-through cross section of the supply channel 14 decreasing in the direction of flow (arrow A).

Due to the identical design, these channels are only described using the supply channel 14 . The decrease in the cross-section that can be flowed through usefully corresponds to the flowing volume of the fluid into the temperature-control elements 3 supplied parallel from the supply channel 14 , so that this cross-section in the area of the inflow opening 1 of the last assigned temperature-control element 3 roughly corresponds to the cross-section of the distributor channel 9 in the area of Entry corresponds to 12 . For sealingly connecting of the temperature-3 with the supply passage 14, the supply channel 14 per tempering 3 is a circuit An opening 17. In this connection opening 17 , a connection nipple 16 of the inflow opening 1 of the temperature control element 3 can be sealingly introduced.

The seal between the connecting nipple 16 of the inflow opening 1 of the temperature control element 3 , 3 ', 3 ''and the connecting opening 17 of the supply channel 14 can, as shown, be made by a sealing lip 27 formed on the connecting nipple 16 .

In some cases, however, it may also be expedient to provide either the connection opening 17 with an inside sealing bead or the connecting nipple 16 with a corresponding outside sealing bead 28 , as shown in the exemplary embodiment according to FIG. 4. Such sealing beads 28 can be molded in injection molded parts, in particular made of plastic, for example, or formed by seals inserted in ring grooves, in particular sealing rings.

In Fig. 4 is a parallel to its flat side section of another temperature control element 3 'is shown, Fig. 5 shows its cross section along the line VV. In order to avoid unnecessary repetitions, only the differences to the embodiment according to FIG. 2 will be discussed.

In the region of its inlet opening and its discharge opening 1 18 2 inte is connected to the temperature-3 'of Fig. 4 and 5 are each a of each of the ports 1, 2 associated waveguide grated. The waveguide 18 have two clear cross-sections which are fluidly connected via the temperature control elements 3 '' and which form the supply channel 14 and the disposal channel. In the area of the flat sides of the Tem perierelemente 3 ', the two waveguides 18 are each provided with a sealing bead 28 which is closed around the respective Lich th cross section.

As shown in Fig. 6, these sealing beads serve 28 for sealing against an intermediate piece 19, 'a row of cells between adjacent tempering 3 is arranged and which forms the supply channel 14 and the discharge channel 15 together with the hollow conductors 18.

Advantageously, the intermediate pieces 19 and the waveguide 18 are pressed against one another, for example by means of tie rods, threaded rods or the like, which are pushed through openings or bores 29 arranged on the edge of the waveguide 18 . Since the seal of the supply duct 14 and the disposal duct 15 is improved in particular.

In Fig. 7, another embodiment of a tempering element 3 '' is shown. The temperature control element 3 '' according to FIG. 7 largely corresponds to the temperature control element 3 'according to FIGS. 4 and 5. In contrast to the previous embodiment of a temperature control element 3 ', the previous waveguide 18 (shown in dotted lines) has a flow direction (arrow A) of the supply 14 or the disposal channel 15 measured smaller extension. In the present case, this extension corresponds approximately to the corresponding dimension of a cell 6 plus the overall dimension of the temperature control element 3 ''. As a result, the sealing device is simplified and improved since the seal between the previous one-piece intermediate piece 19 according to FIG. 6 and the previous waveguides 18 according to FIGS. 4 and 5 is omitted. The seal between two T-shaped Temperierele elements in cross section 3 '' takes place in principle according to the types known from the previous embodiment.

Instead of a T-shaped cross-section, such a tempering element 3 '' also have an L-shaped cross-section, in which case the length of the leg partially forming the supply 14 and the disposal channel 15 is approximately the corresponding dimension of a cell 6 plus the total thickness of the Temperature control element 3 , 3 ', 3 ''corresponds.

In both cases, at each applied Temperierele be parked elements 3 '', the cells 6, desirably, onto the lower legs of tempering 3 ''.

In FIG. 8 is a side view of a preferred form of execution of another battery module illustrated. The cells 6 of the battery module according to FIG. 8 are also combined to form rows of cells which are aligned one behind the other along their flat sides, with all bottom sides of the individual cells being in a two-dimensional plane. Between the flat sides of the individual cells 6 of a row of cells are tempering elements 3 are arranged corresponding to the tempering 3 of FIG. 2. In addition to these temperature control elements, in principle all other temperature control elements according to the invention can also be used, that is to say also the temperature control elements 3 'and 3 '', as shown in FIGS. 4 and 7. End of the row of cells 30 are arranged end plates, wherein between each end plate 30 and each end face of the last cell 6 each tempering elements 3 are arranged. The rectangular and flat end plates 30 , as can be seen in particular from FIG. 10, have openings at each of their corners through which tie rods 31 , which extend over the entire cell row and beyond, are inserted, by means of which the end plates 30 and thus also the cells 6 and tempering elements 3 arranged between them are braced against one another and the battery module is stabilized (see also FIG. 9).

As can be seen from the horizontal section through the battery module according to FIG. 8 along the line IX-IX in FIG. 9, the supply channel 14 'and the disposal channel 15 ' are arranged on the bottom below the cells 6 , the internal configuration of these channels 14 ' , 15 'and weitge starting those of FIG. 3 corresponds, only the connecting nipple of this component, so that the supply channel 14' 'can be arranged without between these two channels 14' to save space adjacent to the discharge channel 15 'and 15 nennens value gap or free space occurs.

In order to save in particular on traction batteries for motor vehicles in terms of height, it is expedient to arrange the supply 14 'and the disposal channels 15 ' laterally to the cells 6 of a row of cells and the connecting nipples of the temperature control elements 3 , 3 ', 3 ''on the corresponding narrow side to arrange. Conveniently, the supply channel 14 'and the disposal channel 15 ' on a single side angeord net, the channels 14 'and 15 ' are expediently formed by a hollow profile with a constant cross section, into which a partition is inserted, which is transverse to the longitudinal extent of the hollow profile is aligned and that separates the two tapered channels 14 'and 15 '.

Claims (19)

1. Battery module with a plurality of electrochemical stores, hereinafter called cells, and with a built-in part which keeps the cells at a distance and electrically isolates them and forms channels for a temperature-regulating fluid, characterized in that the built-in part as a pocket-like and inside up to 1 ) and outflow openings ( 2 ) fluidically closed temperature control element ( 3 , 3 ', 3 '') for a liquid cooling medium is formed, which in its surface extent corresponds to the size of the associated flat side ( 4 ) of a cell housing ( 5 ) of a cell ( 6 ) corresponds and is heat-transferring on the flat sides ( 4 ) of the associated cell housing ( 5 ). 2. Battery module according to claim 1, characterized in that the temperature control element ( 3 , 3 ', 3 '') arranged on the inside guide webs ( 7 ) for the fluid flow. 3. Battery module according to claim 1, characterized in that the temperature control element ( 3 , 3 ', 3 '') arranged on the inside guide webs ( 7 ) for the fluid flow, which together with the outer walls ( 8 ) of the temperature control element ( 3 , 3 ' , 3 '') determine the distance between the cells ( 6 ). 4. Battery module according to claim 1, characterized in that several temperature control elements ( 3 , 3 ', 3 '') are flowed through in parallel to each other. 5. Battery module according to claim 1, characterized in that the walls ( 8 ) of the temperature control element ( 3 , 3 ', 3 '') are made of plastic. 6. Battery module according to claim 1, characterized in that the walls ( 8 ) of the temperature control element ( 3 , 3 ', 3 '') made of an elastomer such as polychloroprene rubber (CR), copolymers of styrene and butadiene (SBR), butyl -Rubbers (IIR), vinyl silicone rubbers (VMQ), fluororubbers (FKM), fluorosilicone rubbers (FVKQ), ethylene / propylene-diene terpolymers (EPDM) etc., in particular thermoplastic elastomers such as thermoplastic polyols fine (TPO ) are made. 7. Battery module according to claim 1, characterized in that the material of the walls ( 8 ) of the temperature control element ( 3 , 3 ', 3 '') is electrically insulating and mixed with a good heat-conducting material. 8. battery module according to claim 1, characterized in that the transverse to the flat sides of the temperature control elements ( 3 , 3 ', 3 '') measured overall dimension of the temperature control element ( 3 , 3 ', 3 '') less than 4 mm, is in particular less than 2 mm. 9. Battery module according to claim 1, characterized in that the wall thickness of a wall ( 8 ) of the temperature control element ( 3 , 3 ', 3 '') is less than 0.25 mm, in particular less than 0.18 mm. 10. Battery module according to claim 1, characterized in that within the temperature control element ( 3 , 3 ', 3 '') with guide bars ( 7 ) a distributor channel ( 9 ) and a collecting channel ( 10 ) is formed, which also by guide bars ( 7th ) formed flow channels ( 11 ) are fluidly connected to each other. 11. Battery module according to claim 10, characterized in that the throughflow channels ( 11 ) have a constant and einan the corresponding flowable cross section and are aligned parallel to each other. 12. Battery module according to claim 10, characterized in that the through-flow channels ( 11 ) are aligned parallel to one another and in that the inlet ( 12 ) of the fluid in the distribution channel ( 9 ) diametrically opposite the outlet ( 13 ) of the fluid from the collecting channel ( 10 ) is arranged. 13. Battery module according to claim 1, characterized in that the inlet ( 1 ) and the outflow opening ( 2 ) of a Temperierele element ( 3 , 3 ', 3 '') on a single side of the temperature control element ( 3 , 3 ', 3 '') Arranged and sealed with a respectively assigned th supply ( 14 , 14 ') or disposal channel ( 15 , 15 ') connected, the supply channel ( 14 , 14 ') via the temperature control elements ( 3 , 3 ', 3rd '') Is fluidly connected to the disposal channel ( 15 , 15 '). 14. Battery module according to claim 1, characterized in that temperature control elements ( 3 , 3 ', 3 '') of cells ( 6 ) which are arranged adjacent to one another with respect to their flat side ( 4 ), through which the fluid flows in parallel. 15. Battery module according to claim 1, characterized in that temperature control elements ( 3 , 3 ', 3 '') of cells ( 6 ) which are arranged adjacent to one another with respect to their flat side ( 4 ), through which the fluid flows in parallel and that Supply channel ( 14 , 14 ') has a flow cross section that decreases in flow direction (arrow A) and the disposal channel ( 15 , 15 ') has a flow cross section that widens in flow direction (arrow A). 16. Battery module according to claim 1, characterized in that the inflow opening ( 1 ) and the outflow opening ( 2 ) of the Tempe rierelements ( 3 ) is each provided with a connecting nipple ( 16 ) that the connecting nipple ( 16 ) sealingly assigned to each Connection opening ( 17 ) of the associated supply ( 14 , 14 ') or the disposal channel ( 15 , 15 ') can be introduced and that the connection openings ( 17 ) with the respectively assigned channels ( 14 , 15 , 15th ) via the connection nipple ( 16 ) ') Are fluidically connected. 17. Battery module according to claim 1, characterized in that the inflow opening ( 1 ) and the outflow opening ( 2 ) of the Tempe rierelements ( 3 ', 3 '') open into an associated waveguide ( 18 ) with a clear cross-section that each waveguide (18) via an intermediate piece (19) sealingly connected to the inside cross of the corresponding waveguide (18) section of the next following temperature-control element (3 ', 3' ') is connectable and in that the waveguide (18) together with the intermediate pieces (19) of a row of cells form the supply channel ( 14 , 14 ') and the disposal channel ( 15 , 15 '). 18. Battery module according to claim 17, characterized in that each temperature control element ( 3 ', 3 '') has two integrally with it connected waveguide ( 18 ). 19. The battery module according to claim 17, characterized in that the two hollow conductors (18) of a temperature-control element (3 ', 3' ') is integrally connected with an associated intermediate piece (19), such intermediate piece (19) has an extent - in the direction of flow (Arrow A) of the supply ( 14 , 14 ') or the disposal channel ( 15 , 15 ') considered - has approximately the corresponding dimension of a cell ( 6 ) plus the overall dimension of the temperature control element ( 3 ' , 3 '') corresponds.