DE102008059967B4 - Battery and method for producing a battery with a arranged in a battery housing heat conducting - Google Patents

Abstract

Battery with a arranged in a battery housing heat conducting plate (1) for controlling the temperature of the battery, the battery having a plurality of parallel and / or serially interconnected single cells (7), which single cells (7) to the heat conducting plate (1) are heat conductively connected, wherein the heat-conducting plate (1) is formed of at least one base plate (4) cast as a lost mold, a casting made of a heat-conducting material (11) and a cooling coil (6) completely enclosed by the material made of a heat-conducting material, wherein the cooling coil (6) forms a channel structure, which can be traversed by a heat conducting medium, and the bottom plate (4) at each of its outer edges and edges of recesses (3) within the bottom plate (4) each provided with a peripheral mold edge (5) is, whose height corresponds to the height of the heat conducting plate (1).

Description

The invention relates to a battery according to claim 1 and to a method for producing a battery having a heat conducting plate arranged in a battery housing according to claim 14.

High-voltage batteries for vehicle applications consist of many single and / or parallel single cells. The single cells, z. As lithium-ion cells, must be cooled to dissipate any heat loss.

An indirect cooling by a cooling liquid, for. B. evaporating refrigerant R134a / CO ₂ as directly or via a chiller tempered by an air conditioner cooling liquid, or a direct cooling means of pre-cooled air, which is passed between the individual cells.

In the case of liquid cooling, which is preferably used for reasons of space, a heat-conducting plate through which cooling liquid flows is arranged on a cell assembly.

From the single cell to the heat conduction plate, the heat loss is conducted either via separate cooling rods or plates or through appropriately thickened cell housing walls of the individual cells.

If a voltage is applied to the cell housings, an electrically insulating heat-conducting foil or potting compound is arranged between the individual cells and the heat-conducting plate in order to prevent short circuits.

Usually, the heat conducting plates are constructed from two aluminum plates. In a lower plate, a cooling channel is introduced by milling. An upper plate closes off the cooling channel. Both plates are soldered together. For this, the top plate is solder plated. Since the solder can bridge only small gap sizes, the flatness of both plates must be very high. This requires a mechanical rework of the lower plate after the introduction of the cooling channel by grinding or over-milling. The soldering process is very time consuming. For heating and cooling several hours are required. Since the slightest bumps, dirt or traces of grease lead to rejects, a complex tightness control is required. The solder seam is also very brittle, so that the heat conduction can not be exposed to strong mechanical stress.

Furthermore, the production and application of a coolant connection is very expensive, since currently a separate, previously elaborately machined aluminum block is soldered.

The massive plates create an unnecessarily heavy heat conduction plate.

To reduce costs, it may also be useful to use a tube cooling plate. Here, a heat-conducting medium is guided in a loop-shaped bent tube, which is fastened flat on a plate.

From the DE 10 2007 010 743 A1 it is known that the cooling tube in metal casting, z. B. aluminum, pour. Although the heat transfer is optimal here, but the production must be done in a costly and time-consuming sand or Kokillengussverfahren. The openings or recesses in the heat-conducting plate required for head-cooled cells must be reworked for reasons of precision.

The DE 10 2006 059 989 A1 relates to an arrangement for cooling a battery composed of a plurality of individual cells, wherein the individual cells are assembled to the battery, wherein the single cells are of cylindrical design, wherein the individual cells are assembled to the battery, that the axes of rotation of the single cells are oriented parallel to each other, wherein the Single cells are arranged side by side in close packing, wherein the individual cells, a base plate is present, wherein the individual cells are perpendicular to the base plate, wherein the individual cells are in thermal contact with the base plate, wherein the thermal contacting of the individual cells to the base plate via cooling elements, which are arranged in the interstices of the densest packing of the individual cells, wherein the cooling elements have a trigonal symmetrical outer contour and thermally contact the individual cells on the cylindrical outer sides and wherein the base plate by means of a flowing Cooling medium is cooled.

The DE 10 2007 010 751 A1 relates to a battery having a housing, which comprises a bottom and a side wall and a cell assembly of cells arranged in the housing, heat conduction rods being arranged between individual cells. The cell assembly is secured by a potting compound in the housing, wherein the potting compound further enclosing the heat conduction and serves as a casing shell-like housing plate as a lost form.

The invention has for its object to provide an improved battery with a arranged in a battery housing cast heat conduction plate for controlling the temperature of the battery. Moreover, it is an object of the invention to provide a simple method for producing such a battery.

The object is achieved with a battery having the features specified in claim 1. With regard to the method, the object is achieved by the features of claim 14.

Advantageous embodiments of the invention are the subject of the dependent claims.

The battery with a arranged in a battery housing heat conduction plate for temperature control of the battery has a plurality of parallel and / or serially interconnected individual cells, as well as arranged in the heat conduction and flowable through a Wärmeleitmedium channel structure, the individual cells are thermally conductively connected to the heat conduction and the Heat conducting plate has leading cooling channel connections for the channel structure. According to the invention, the battery is characterized in that the heat-conducting plate is formed at least from a separate bottom plate provided with a circumferential edge of the mold into which a cooling coil is inserted and cast. As a result, it is advantageously possible to cool the individual cells and to dissipate any resulting heat loss and thus at least limit or avoid an increase in electrical resistance in the individual cells.

The bottom plate is provided in each case at all edges, in particular the outer edges and the edges of any recesses within the bottom plate with a mold edge. The mold edge is formed as an angled portion of the bottom plate and arranged substantially at a right angle to the bottom plate. By definition, an edge is a line formed by two abutting surfaces. The mold edge on the bottom plate leads to a shell-like shape selbiger, in which the recesses for the pole contacts of the individual cells can be introduced before pouring. This reduces the production cost and lowers the production costs in a particularly advantageous manner, since the recesses must not be subsequently introduced into the finished heat conducting plate.

The edge between the bottom plate and the edge of the mold is rounded. This shaping advantageously supports a uniform spreading of a cast material.

The height of the mold edge determines the height of the finished heat conduction plate. This results from the use of the bottom plate with the mold edge as a lost mold during a manufacturing process of the heat conduction.

The bottom plate with the edge of the mold is preferably produced by thermoforming, therefore, the mold edge is largely arranged at a right angle to the rest of the bottom plate in an advantageous embodiment, the cooling coil is introduced with a meandering course in the heat conducting, since this course a maximum cooling effect can be achieved even if the bottom plate or the heat conducting plate is provided with recesses for the pole contacts of the individual cells.

In a particularly advantageous embodiment, the cooling coil is potted in the heat conducting plate and completely enclosed by a casting material, this allows a maximum heat transfer surface and conveniently supports the cooling. In addition, this design gives the heat conduction plate great mechanical stability.

The heat conductive material of the cooling coil is preferably impermeable to the heat transfer medium.

The cooling coil opens into cooling duct connections in the region of the edge of the heat conduction plate in order to be able to apply a cooling medium, for example a refrigerant of a vehicle air conditioning system, so that a further improvement in the effectiveness of cooling the individual cells and / or other components of the battery to be cooled is achieved ,

The heat conducting plate consists of a casting and is made of a heat-conducting, preferably metallic material. This embodiment imparts great mechanical stability to the heat conduction plate.

The individual cells are preferably arranged with the pole side toward the heat-conducting plate, advantageously the heat-conducting plate therefore has recesses in the region of the pole contacts of the individual cells and the pole contacts of the individual cells protrude through the recesses.

The individual cells are attached directly or indirectly positively and / or non-positively to the heat conducting plate. The individual cells are in direct contact with the Wärmleitplatte, so that an effective, simple and thus inexpensive to produce cooling can be realized without additional components.

The single cells and the heat conducting plate are thermally coupled together and electrically isolated from each other, so electrical short circuits are avoided and an effectiveness of the cooling of the individual cells and / or other components of the battery to be cooled is increased.

The battery housing is provided with further recesses through which electrical connection elements and / or connection elements of the heat-conducting plate, in particular a high-voltage plug and / or cooling channel connections, protrude outward. This makes it possible to connect the battery in a simple manner electrically and / or with a cooling circuit.

The battery can be used as a vehicle battery, in particular for a vehicle with hybrid drive or a fuel cell powered vehicle. The preferred use of batteries according to the invention, in particular in the form of Li-ion batteries or NiMH batteries, is preferably carried out for the at least partial drive of a motor vehicle for transporting persons.

The inventive method for producing a heat conducting plate of a battery having a plurality of parallel and / or serially interconnected individual cells and arranged in the heat conducting plate and durchströmmöglich for a heat conduction channel channel structure and out of the heat conducting plate cooling channel connections for the channel structure, wherein the individual cells with the heat conducting plate heat are conductively connected, is characterized in that the heat conducting plate is formed at least from a provided with a peripheral mold edge bottom plate, in which a cooling coil is inserted and encapsulated.

Further useful embodiments of the invention can be taken from the respective subclaims. Moreover, the invention will be explained in more detail with reference to embodiments illustrated in the drawings.

Showing:

1 1 schematically a perspective view of a cast heat conducting plate for head-cooled round cells of a battery according to the invention with extended cooling channel connections and recesses for the pole contacts of the individual cells,

2 1 is a perspective view of a bottom plate for head-cooled round cells with a shaped edge and recesses and a cooling coil with cooling channel connections introduced before the casting process, with a meandering course;

3 3 is an exploded view of a bottom plate for head-cooled round cells with a shaped edge and recesses and a cooling coil provided with a meandering profile with cooling channel connections before the casting process;

4 1 is a schematic perspective view of a cast heat conducting plate for head-cooled round cells with outgoing cooling channel connections and a cell assembly made up of a plurality of individual cells mounted thereon,

5 3 is an exploded view of a cast heat conducting plate for head-cooled round cells with outgoing cooling channel connections, a thermally conductive and electrically insulating shaped body and a cell composite,

6 1 is a schematic perspective view of an upper side of a heat-conducting plate for head-cooled round cells of a battery according to the invention with individual cells mounted thereon by means of a cell connector board,

7 1 is a perspective view of a bottom plate for flat cells with a shape edge and a cooling coil with cooling channel connections introduced before the casting process, with a meandering course;

8th 3 is an exploded view of a bottom plate for flat cells with a mold edge and a cooling coil provided with a meandering profile with cooling channel connections before the casting process;

9 1 is a schematic sectional view of a heat conducting plate for flat cells with a shaped edge, a cooling coil and a cast material,

10 schematically an exploded view of a cast heat conducting plate for flat cells with led out cooling channel connections, a heat conducting foil and a cell composite, and

11 schematically a perspective view of a cast heat conduction plate for flat cells with led out cooling channel connections of a battery according to the invention and of a multi-cell cell assembly formed thereon.

Corresponding parts are provided in all figures with the same reference numerals.

1 shows a finished cast Wärmeleitplatte 1 for particular designed as a head-cooled round cells single cells 7 a battery according to the invention with led out cooling channel connections 2 and recesses 3 for pole contacts P of single cells 7 , in the 4 to 6 being represented.

2 shows a bottom plate 4 with a shape edge 5 and recesses 3 for single cells designed as head-cooled round cells 7 and one with a meandering course introduced cooling coil 6 with cooling channel connections 2 for a heat conduction plate 1 before the casting process. Here are the cooling coil 6 Anordenbare metal pockets not shown, which is the cooling coil 6 at the bottom plate 4 fix and prevent any floating during the casting process.

3 shows an exploded view of the bottom plate 4 and the cooling coil 6 according to 2 , Here is the cooling coil 6 as a separate, prefabricated component, in particular molded part, with meandering in a plane course and end of the finished heat conduction 1 outstanding cooling duct connections 2 executed. The course of the cooling coil 6 is from the arrangement of the recesses 3 for the single cells 7 certainly. There are several single cells 7 parallel next to each other in a row and several rows of single cells 7 parallel to each other and offset by at least half a recess length offset from one another. The cooling coil 6 is thereby formed so that these around the rows of recesses 3 for the single cells 7 runs.

4 shows the finished cast Wärmeleitplatte 1 for trained as round cells single cells 7 with lead out cooling channel connections 2 and one mounted on it from several single cells 7 formed cell network Z.

5 shows an exploded view of a cast Wärmeleitplatte 1 according to 4 and the cell assembly Z and one between Wärmeleitplatte 1 and cell assembly Z arranged thermally conductive and electrically insulating molded body 8th ,

6 shows the view of an upper side of a heat conduction plate 1 with on the heat conduction plate 1 by means of a cell connector board 9 mounted single cells 7 , The completely equipped heat-conducting plate 1 and at this via the cell connector board 9 attached single cells 7 are arranged in the housing interior of a battery housing, not shown, formed from an upper housing part and a lower housing part.

7 shows an alternative embodiment of a heat conducting plate 1 with a bottom plate 4 with shape edge 5 and a cooling coil introduced with a meandering course 6 with cooling channel connections 2 for as flat cells 14 trained single cells 7 before the casting process. Here are the cooling coil 6 Anordenbare metal pockets not shown, which is the cooling coil 6 at the bottom plate 4 fix and prevent any floating during the casting process.

8th shows an exploded view of the bottom plate 4 and the cooling coil 6 according to 7 , Here is the cooling coil 6 as a separate, prefabricated component, in particular molded part, with meandering in a plane course and end of the finished heat conduction 1 outstanding cooling duct connections 2 executed. The cooling coil 6 is thereby shaped so that the best possible cooling for the individual cells 7 is possible.

9 shows a sectional view of a Wärmeleitplatte 1 for flat cells with form edge 5 , Cooling coil 6 and casting material 10 , Here is in particular the completely of the casting material 10 enclosed cooling coil 6 shown, which allows a maximum heat transfer surface and conveniently supports the cooling.

10 shows an exploded view of a cast Wärmeleitplatte 1 for flat cells with led out cooling channel connections 2 , a heat-conducting foil 11 and a cell composite formed of multiple single cells 7 ,

10 shows an exploded view of a cast Wärmeleitplatte 1 according to 11 and the cell assembly Z and one between the heat conduction 1 and cell composite Z arranged heat conducting foil 11 ,

11 shows a cast Wärmeleitplatte 1 for flat cells with led out cooling channel connections 2 a battery according to the invention and of a plurality of individual cells mounted thereon 7 formed cell composite Z, where the fully assembled heat conduction board 1 is arranged inside the housing of a battery housing, not shown, formed from an upper housing part and a lower housing part.

In the following, embodiments of the invention will be explained in more detail with reference to these figures.

The components of the battery are in particular single cells 7 , a heat conduction plate 1 , a shaped body 8th and a cell connector board 9 , There are several single cells 7 at the head, for example, provided for cooling Wärmeleitplatte 1 arranged and form a cell network Z. In a non-illustrated embodiment of the invention, the heat conduction 1 alternatively on the bottom side of the single cells 7 or another heat conducting plate in addition to the bottom side of the individual cells 7 be arranged.

The single cells 7 can be used as round cells, flat cells or in other cell forms, eg. B. polygonal or oval, executed. Through the illustrated round formation of Einzellen 1 or training as flat cells is a base of the Battery and the heat conducting plate 1 space-optimized used.

The heat conduction plate 1 consists of a casting and is made of a heat-conducting, preferably metallic material. This embodiment imparts great mechanical stability to the heat conduction plate.

The heat conducting plate, preferably made of a metal 1 , Which is provided for controlling the temperature of the battery, has in its interior a flow-through and operable from the outside channel structure for a not-shown heat transfer medium. This channel structure is through a cooling coil 6 formed of a heat-conducting material which is impermeable to the heat transfer medium.

The heat conduction plate 1 is produced in a casting process by means of a lost mold. This lost shape is through the bottom plate 4 with the form edge 5 educated. In the production of the bottom plate 4 with the form edge 5 For example, it is preferable to use a deep-drawing method, therefore, the molding edge is 5 largely at a right angle to the rest of the floor slab 4 arranged.

The bottom plate 4 is in each case on all edges, in particular the outer edges and the edges of any recesses 3 inside the bottom plate 4 , with the shape border 5 Mistake. The form edge 5 at the bottom plate 4 leads to a shell-like form selbiger, in which also the recesses 3 for the pole contacts of the individual cells 7 can be introduced before pouring. This reduces the production costs and lowers the production costs in a particularly advantageous manner, since the recesses 7 must not be subsequently introduced into the finished heat conducting plate.

The edge between base plate 4 and shape edge 5 is rounded. This shaping advantageously supports a uniform spreading of a cast material 10 ,

The height of the form edge 5 determines the height of the finished heat conduction plate 1 , This results from the use of the bottom plate 4 with the form edge 5 as a lost mold during a manufacturing process of the heat conduction plate 1 ,

The cooling coil 6 gets on the bottom plate 4 applied and with a thermally conductive casting material 10 potted and is completely of the casting material 10 enclosed, this allows a maximum heat transfer surface and conveniently supports the cooling. In addition, this design gives the heat conduction plate great mechanical stability.

To a floating up of the cooling coil 6 During the casting process, the cooling coil can prevent 6 by means not shown metal tabs on the bottom plate 4 be attached.

To a melting of the bottom plate 4 during the casting process, for. B. due to a small wall thickness of the bottom plate 4 , to prevent, it can be inserted during the casting process in a cooled from the outside Kupfermatritze.

The cooling coil 6 is with a meandering course in the heat conduction plate 1 introduced, because by this course a maximum cooling effect can be achieved, even if the bottom plate 4 or the heat conducting plate 1 with recesses 3 for the pole contacts P of the individual cells 7 is provided.

The cooling coil 6 opens into cooling duct connections 2 in the region of the edge of the heat conduction plate 1 in order to be able to apply a cooling medium, for example a refrigerant of a vehicle air conditioning system, so that a further improvement in the effectiveness of the cooling of the individual cells and / or other components of the battery to be cooled is achieved.

The single cells 7 are preferably with the Polseite to Wärmeleitplatte 1 arranged, advantageously, the heat conducting plate 1 therefore in the region of the pole contacts P of the individual cells 7 recesses 3 on and the pole contacts P of the individual cells 7 protrude through the recesses 3 therethrough.

To a heat-conducting connection are the electrical pole contacts P of each individual cell 1 through recesses 3 Guided in the heat conduction plate 1 are formed as through holes. The pole contacts P thus protrude into the heat conducting plate 1 into or through it. Since the shape and the clear dimensions of the pole contact P associated recess 3 is greater than the Außenbemaßung a Polkontaktes P a single cell 7 , point that through the recesses 3 protruding pole contacts P everywhere a distance from the walls of the recesses 3 on. As a result, the pole contacts P and the heat-conducting touch 1 not, whereby they are electrically isolated from each other. Based on cell connectors 10 are electrically the same and / or different pole contacts P of the individual cells 7 depending on a desired battery voltage and power parallel and / or connected in series with each other electrically.

The cell connectors 10 are with the fasteners 15 at the pole contacts P of the individual cells 7 fastened, with the fasteners 15 for example, as screws, rivets or Clamping connections are formed. The pole contacts P of the individual cells 7 preferably each have one to the fastening means 15 corresponding, not shown bore, so that the individual cells 7 by means of the fastening means 15 and the cell connectors 10 on the heat conducting plate 1 are fixed. As an example, consider the use of screws as fasteners 15 called, in which the holes in the pole contacts P are designed as corresponding to the screws internal thread.

All cell connectors 10 are common for example in a cell connector board 9 attached. On the one hand, this provides electrical insulation with respect to the heat conducting plate 1 on the other hand, it makes it safe and easy to install the battery.

Also on the cell connector board 9 are electrical connection elements 13 attached to which an unillustrated and fixed to the battery case connector is connectable.

In an advantageous embodiment of the invention, the fastening means 15 for attachment of the individual cells 7 and the heat conducting plate 1 made equal in a battery case, so that a high degree of common parts use is achieved, which leads to a low cost. Furthermore, the fasteners 15 formed in an advantageous manner so that a releasable attachment is formed, so that when a defect in the battery only defective components are replaced, thereby eliminating a costly replacement of the entire battery.

The entire cell network of the individual cells 7 is at least the same size or smaller than the heat conduction with respect to the length and / or width extent 1 ,

Between the heat conducting plate 1 and the cell connector board 9 an unillustrated spring element is arranged. This spring element is preferably formed as a leaf spring or an elastic foam mat.

About the electrical pole contacts P of the individual cells 7 passing through into the heat conduction plate 1 introduced recesses 3 protrude through, they are in the direction of heat conduction 1 drawn. The force required for this creates the spring element and this force is achieved by means of the cell connector board 9 and the cell connectors applied thereto 10 over the fasteners 15 introduced into the pole contacts P. This creates a defined contact pressure between the components to be cooled and the heat conduction plate 1 , which allows the greatest possible heat transfer.

During final assembly of the battery, the heat conduction plate 1 and all components arranged thereon fastened by means not shown fastening means in the battery case. The fastening means are preferably screws, so that a detachable connection is achieved and a disassembly of the battery is made possible in their individual components. In addition, the heat conduction plate 1 inside the battery between the molding 8th and arranged a spring element, not shown.

The molded body 8th is between the individual cells 7 and the heat conducting plate 1 arranged and consists of a thermally conductive and electrically insulating material. The single cells 7 and the heat conduction plate 1 are thereby thermally coupled together and electrically isolated from each other, so electrical short circuits are avoided and an effectiveness of the cooling of the individual cells 1 and / or other components of the battery to be cooled is increased.

On the heat conduction plate 1 are cooling element connections as connection elements 2 to flow through the heat conducting plate 1 arranged with a cooling medium, not shown, wherein in the heat conduction 1 the cooling coil 6 is provided for guiding the cooling medium. The cooling medium may in particular be a refrigerant of a vehicle air conditioning system, the heat conduction plate 1 by means of the cooling channel connections 2 can be connected to a refrigerant circuit of the vehicle air conditioner and thus a heat output of the individual cells 7 can record. Furthermore, the heat conduction plate 1 alternatively or additionally be connected to a separate cooling circuit, not shown.

To a lead out of the connection elements, in particular the electrical connection elements 13 and the cooling duct connections 2 , Are arranged on the housing, not shown, of the battery to these corresponding recesses.

By a tight execution of the battery case, penetration of foreign substances into the battery case is prevented, thus increasing the reliability of the battery. On the basis of avoiding leakage of substances from the battery case continues to be a hazard, damage and / or destruction of the environment of the battery is avoided.

In the in the 7 to 11 illustrated embodiment with flat cells 14 are in the heat conduction plate 1 There are no recesses for pole contacts and, moreover, the shaped body is replaced by a heat-conducting foil 12 replaced.

LIST OF REFERENCE NUMBERS

1

heat conduction

2

Cooling duct connection

3

recess

4

baseplate

5

shaped rim

6

cooling coil

7

Single cells

8th

moldings

9

Cell connector board

10

cell connectors

11

casting material

12

Heat conducting

13

electrical connection elements

14

flat cells

15

fastener

P

pole contact

Z

cell assembly

Claims (16)

Battery with a arranged in a battery housing heat conducting plate ( 1 ) for controlling the temperature of the battery, wherein the battery has a plurality of parallel and / or series-interconnected individual cells ( 7 ) which individual cells ( 7 ) with the heat conducting plate ( 1 ) Are conductively connected, wherein the heat conducting plate ( 1 ) from at least one base plate serving as a lost form ( 4 ), a cast in the bottom plate casting of a heat conductive material ( 11 ) and a fully enclosed by the material cooling coil ( 6 ) is formed of a heat-conducting material, wherein the cooling coil ( 6 ) forms a channel structure, which can be traversed by a heat transfer medium, and the bottom plate ( 4 ) at each of its outer edges and edges of recesses ( 3 ) within the bottom plate ( 4 ), each with a circumferential edge ( 5 ) whose height is equal to the height of the heat conducting plate ( 1 ) corresponds. Battery according to claim 1, characterized in that the mold edge ( 5 ) as one of the bottom plate ( 4 ) angled portion is formed and at a right angle to the bottom plate ( 4 ) is arranged. Battery according to claim 1, characterized in that the edge between the base plate ( 4 ) and form edge ( 5 ) is rounded. Battery according to claim 1, characterized in that the bottom plate ( 4 ) with form edge ( 5 ) is produced by thermoforming. Battery according to claim 1, characterized in that the cooling coil ( 6 ) with a meandering course in the heat conducting plate ( 1 ) is introduced. Battery according to claim 1, characterized in that the heat-conducting material of the cooling coil ( 6 ) is impermeable to the heat transfer medium. Battery according to claim 1, characterized in that the cooling coil ( 6 ) in cooling channel connections ( 2 ) in the region of the edge of the heat conducting plate ( 1 ) opens. Battery according to claim 1, characterized in that the individual cells ( 7 ) with its pole side to the heat conducting plate ( 1 ) are arranged. Battery according to claim 1, characterized in that the heat conducting plate ( 1 ) in the region of pole contacts P of the individual cells ( 7 ) Recesses ( 3 ) and that the pole contacts P of the individual cells ( 7 ) through the recesses ( 3 protrude through. Battery according to claim 1, characterized in that the individual cells ( 7 ) directly or indirectly positively and / or non-positively on the heat conducting plate ( 1 ) are attached. Battery according to claim 1, characterized in that the individual cells ( 7 ) and the heat conducting plate ( 1 ) are thermally coupled together and electrically isolated from each other. Battery according to claim 1, characterized in that the battery housing is provided with further recesses through which electrical connection elements ( 13 ) and / or connection elements of the heat conducting plate ( 1 ) protrude outward. Battery according to claim 1, characterized in that the battery is configured as a vehicle battery, in particular as a battery for a vehicle with hybrid drive or as a battery for a vehicle powered by fuel cells. Method for producing a heat conducting plate ( 1 ) of a plurality of parallel and / or serially interconnected single cells ( 7 ) Battery connected to the heat conducting plate ( 1 ) Are heat conductively connected, in which serving as a lost form bottom plate ( 4 ) at all its outer edges and edges of recesses ( 3 ) within the bottom plate ( 4 ), each with a circumferential edge ( 5 ) whose height corresponds to the height of the finished heat conducting plate ( 1 ) is selected, one of a heat conducting medium can be flowed through, a channel structure forming, cooling coil is arranged made of a heat-conducting material, and the bottom plate and the arranged therein Cooling coil is potted with a heat-conducting material, with leading out of the bottom plate cooling duct connections ( 2 ) of the cooling coil are kept free. A method according to claim 14, characterized in that the cooling coil ( 6 ) with a meandering course around the recesses ( 3 ) within the bottom plate ( 4 ) is arranged around on selbiger. A method according to claim 14, characterized in that on the heat conducting plate ( 1 ) at least at the individual cells ( 7 ) facing side, a mechanical rework after the casting process, in particular a face milling done.

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