DE102008059967A1 - Battery e.g. lithium-ion battery, for driving motor vehicle for transportation of persons, has heat conductive plate formed from base plate provided with circumferential mold edge, and cooling coil attached and cast in base plate - Google Patents

Abstract

The battery has a heat conductive plate arranged in a battery housing for tempering the battery. Individual cells e.g. lithium-ion cells, are connected in parallel and/or series with each other. A channel structure is arranged in the heat conductive plate, where heat conductive medium is passed through the channel structure. The individual cells are connected with the heat conductive plate in a heat conductive manner. The heat conductive plate is formed from a base plate (4) provided with a circumferential mold edge (5). A cooling coil (6) is attached and cast in the base plate. An independent claim is also included for a method for manufacturing a heat conductive plate of a battery.

Description

The The invention relates to a battery with a in a battery case arranged Wärmeleitplatte for tempering the battery according to the preamble of claim 1.

High-voltage batteries for vehicle applications consist of many in series and / or parallel-connected single cells. The single cells, z. For example, lithium ion cells, must be cooled to a resulting heat loss dissipate.

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.

at a liquid cooling, the space reasons is preferably applied to a cell network is one of Coolant flowed through Wärmeleitplatte arranged.

From the single cell to the heat conduction is the heat loss either via separate cooling rods or sheets or over appropriately thickened cell housing walls directed the single cells.

Lies on the cell housings a voltage, then is to prevent short-circuiting an electrically insulating heat-conducting foil or potting compound between the individual cells and the heat conducting plate arranged.

Usually The heat conducting plates are made of two aluminum plates. In a lower plate is a cooling channel by milling brought in. An upper plate closes the cooling channel from. Both plates are soldered together. Is to the top plate is solder plated. Since the solder bridge only small gap sizes The flatness of both plates must be very high. This requires a mechanical rework of the lower plate after insertion of the cooling channel by grinding or over-milling. The soldering process is very time consuming. For the Heating and cooling are required for several hours. As the slightest bumps, dirt or traces of grease to reject lead, a complex tightness control is required. The soldering seam is also very brittle, so that the Wärmeleitplatte no strong mechanical loads can be suspended.

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

By The massive plates creates an unnecessarily heavy heat conduction plate.

to Lowering the cost, it may also be useful to use a tube cooling plate use. Here is a heat transfer medium in one loop-shaped bent pipe, 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.

Of the Invention is based on the object, an improved battery with a cast in a battery housing Specify heat-conducting plate for tempering the battery. Moreover, it is an object of the invention, a simple method to specify for the production of such a battery.

The Task is according to the invention with a battery having dissolved, which has the features specified in claim 1. With regard to the method, the object is achieved by the invention the features of claim 20 solved.

advantageous Embodiments of the invention are the subject of the dependent claims.

The Battery according to the invention with a in a battery case arranged Wärmeleitplatte for tempering the battery has several parallel and / or serially interconnected Single cells, as well as arranged in the heat conducting plate and for a Wärmeleitmedium durchströmbare Channel structure, wherein the single cells with the heat conduction plate Heat conductively connected and the heat conducting plate leading cooling duct connections for has the channel structure. The battery is characterized according to the invention from that the heat conduction plate at least one with a encircling mold edge provided bottom plate is formed, in which a cooling coil is inserted and potted. Thereby it is possible in an advantageous manner, the individual cells to cool and deduce a resulting heat loss and thus an increase in electrical resistance in the individual cells at least to limit or avoid.

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 form edge is as formed an angled from the bottom plate area 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 The edge between the base plate and the edge of the mold is rounded. This shape advantageously supports a uniform Spreading a cast material.

The Height of the form edge determines the height of the finished Heat conduction. This results from the use of the Bottom plate with the form edge as lost form during a manufacturing process of the heat conduction plate.

The Bottom plate with mold edge is preferably by deep drawing made, therefore, the shape edge is largely in a right Angle to the rest of the bottom plate arranged.

In An advantageous embodiment is the cooling coil with a meandering course in the heat conduction plate introduced, because by this course a maximum Cooling effect can be achieved, even if the bottom plate or the heat conduction plate with recesses for the pole contacts of the individual cells is provided.

In a particularly advantageous embodiment is the cooling coil potted in the heat conduction 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 Wärmeleitplatte great mechanical stability.

Of the Heat conducting material of the cooling coil is preferably impermeable to the heat transfer medium.

The Cooling coil opens into cooling channel connections in the area of the edge of the heat conduction plate to make it with a Cooling medium, such as a refrigerant one Vehicle air conditioning system, to be able to apply, so that a further improving the effectiveness of cooling the individual cells and / or other components to be cooled the battery is reached.

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

The Single cells are preferably with the Polseite to Wärmeleitplatte arranged, advantageously, the heat conducting plate Therefore recesses in the area of the pole contacts of the individual cells and the pole contacts of the individual cells protrude through the recesses therethrough.

The Single cells are directly or indirectly positive fit and / or attached non-positively to the heat conduction plate. The individual cells are in direct contact with the heat conducting plate, so that without additional components an effective, simple and thus inexpensive producible cooling feasible is.

The Single cells and the heat conducting plate are thermally with each other coupled and electrically insulated from each other, so are electrical Shunts avoided and effectiveness of the Cooling of the individual cells and / or other components to be cooled the battery is raised.

The Battery housing is provided with further recesses, by which electrical connection elements and / or connection elements the heat conducting, in particular a high-voltage connector and / or Cooling duct connections, projecting outwards. Thereby there is the possibility of the battery in a simple way and electrically and / or with a cooling circuit to connect.

The Battery is considered a vehicle battery, especially for a hybrid vehicle or a fuel cell powered vehicle Vehicle, usable. The preferred use of the invention Batteries, in particular in the form of Li-ion batteries or NiMH batteries, is preferably carried out for at least partial drive of a motor vehicle for passenger transport.

The inventive method for producing a Thermally conductive plate of a battery, several parallel and / or serially interconnected single cells and one in the heat conducting plate arranged and flowed through for a heat transfer medium Channel structure as well as out of the heat conduction plate Cooling duct connections for the duct structure comprising, wherein the single cells with the heat conducting plate Heat conductively connected, is characterized that the heat conducting plate at least one with a encircling mold edge provided bottom plate is formed, in which a Cooling coil is introduced and potted.

Further useful embodiments of the invention are the respective dependent claims removable. Incidentally, the invention is based on in The drawings illustrated embodiments closer explained.

there demonstrate:

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.

each other corresponding parts are in all figures with the same reference numerals Mistake.

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 a cooling coil introduced with a meandering course 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 Wärmeleit plate 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 Below, embodiments will be described with reference to these figures the invention explained in more detail.

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 the formation as flat cells is a base of the battery and the heat conduction 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 before the casting can be introduced. 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, are designed as screws, rivets or clamp connections. 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 sealed version of the battery case is Ingress of foreign matter into the battery case prevents and thus increases the reliability of the battery. By avoiding leakage of substances from the battery case will continue to be a hazard, damage and / or Destruction of the environment of the battery 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.

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

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 102007010743 A1 [0011]

Claims (24)

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 ), with a in the heat conducting plate ( 1 ) arranged and flowed through by a heat conduction medium channel structure, wherein the single cells ( 7 ) with the heat conducting plate ( 1 ) Are conductively connected, characterized in that the heat conducting plate ( 1 ) at least one with a circumferential edge ( 5 ) provided bottom plate ( 4 ) is formed, in which a cooling coil ( 6 ) is introduced and shed. Battery according to claim 1, characterized in that the bottom plate ( 4 ) at all edges, in particular the outer edges and the edges of any recesses ( 3 ) within the bottom plate ( 4 ), with a shape edge ( 5 ) is provided. Battery according to claim 1, characterized in that the mold edge ( 5 ) as one of the bottom plate ( 4 ) angled portion is formed and largely 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 height of the mold edge ( 5 ) the height of the finished heat conducting plate ( 1 ) certainly. 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 cooling coil ( 6 ) in the heat conducting plate ( 1 ) is shed. Battery according to claim 1, characterized in that the cooling coil ( 6 ) completely from a casting material ( 11 ) is enclosed. 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 cooling coil ( 6 ) in the heat conducting plate ( 1 ) can be acted upon with a cooling medium. Battery according to claim 1, characterized in that the heat conducting plate ( 1 ) consists of a casting and is formed of a heat-conducting, preferably metallic material. Battery according to claim 1, characterized in that the individual cells ( 7 ) with the 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 the 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 that the battery as a vehicle battery, in particular for a hybrid vehicle or a fuel cell powered vehicle Vehicle, can be used. Method for producing a heat conducting plate ( 1 ) of a battery, wherein the battery has a plurality of parallel and / or series interconnected individual cells ( 7 ), with a in the heat conducting plate ( 1 ) arranged and flowed through by a heat conduction medium channel structure, wherein the single cells ( 7 ) with the heat conducting plate ( 1 ) Are conductively connected, as well as with the heat conducting plate ( 1 ) leading out cooling channel connections ( 2 ) for the channel structure, characterized in that the heat conducting plate ( 1 ) at least one with a circumferential edge ( 5 ) provided bottom plate ( 4 ) is formed, in which a cooling coil ( 6 ) is introduced and shed. A method according to claim 20, characterized in that the bottom plate ( 4 ) at all edges, in particular the outer edges and the edges of any recesses ( 3 ) within the bottom plate ( 4 ) with a shape edge ( 5 ) is provided. Method according to claim 20, 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 20, characterized in that the bottom plate ( 4 ) with form edge ( 5 ) and attached cooling coil ( 6 ) is cast with a heat-conducting material A method according to claim 20, 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.