DE102010025656A1 - Modular device for powering a motor vehicle and method for its production - Google Patents

Abstract

The invention relates to a modular device (1) for supplying power to a motor vehicle, in particular a car or a motorcycle, with at least two memory cell modules (100, 200). Each storage cell module (100, 200) comprises a cooling body (110, 210) through which a cooling medium flows and at least one electrochemical storage cell (120, 220) which is conductively connected to the cooling body (110, 210) and with a coolant line structure (119 ), via which the heat sinks (110, 210) are interconnected to guide the cooling medium. The modular device (1) according to the invention is characterized in that each of the heat sinks (110, 210) has at least one cooling medium connection inlet (112, 114; 212, 214) and a cooling medium connection outlet (111, 113; 211, 213), which at or after sequential assembly of the memory cell modules (100, 200) in the motor vehicle or in a housing of the device, optionally directly and / or, if the memory cell modules (100, 200) are arranged spatially separated from one another, via individual lines (150; 160, 170, 180) of the coolant line structure (119) are connected to one another. The lines (150; 160, 170, 180) are adapted to the spatial installation situation.

Description

The invention relates to a modular device for supplying power to a motor vehicle, in particular a car or a motorcycle, with at least two memory cell modules, each memory cell module one of a cooled with a cooling medium (coolant or refrigerant) heat sink and at least one electrochemical storage cell, the heat conducting with the Cooling body is connected, and with a coolant line structure, via which the heat sinks for guiding the cooling medium are interconnected. The invention further relates to a method for producing such a device for supplying power to a motor vehicle.

Memory cells, in particular those on lithium-ion-based memory cells, but also metal-hydride memory cells (such as nickel-metal hydride batteries) or lithium-polymer memory cells or other chemical energy storage, are gaining in importance in the automotive industry. In particular, due to the need for alternative drive concepts, for example hybrid drives or pure electric drives, the storage of electrical energy is of immense importance for future automobile construction.

The use of lithium-ion batteries as electrical energy storage for electric motors in the automotive industry has proved to be advantageous. On the one hand, these accumulators store a large amount of energy with a small volume and, on the other hand, such batteries are only conditionally subject to an aging process. In particular, a "memory effect" does not occur in this. As a result, a plurality of charge cycles take place, so that the life of the battery substantially corresponds to that of a vehicle.

Most memory cells provide only low voltages between one or more 10V. These low voltages are far from sufficient to drive an electric motor of an electric vehicle. For this reason, memory cells are interconnected to so-called memory cell modules. Here, a plurality of individual memory cells can be connected in series with each other, whereby the output voltage of the memory cell module multiplied according to the number of series-connected memory cells. In a motor vehicle, a plurality of such memory cell modules may be provided and electrically interconnected.

During operation of the memory cell modules, high temperatures are generated which must be dissipated to prevent damage to the memory cells or the entire memory cell module and to achieve a satisfactory lifetime of the memory cell module. The heat dissipation takes place for example by active cooling. Here, the memory cells of the memory cell module with a cooling element heat conductively connected, wherein the cooling element is flowed through by a cooling medium (so-called. Active cooling). The cooler consists z. B. from a plurality of coils, which are shaped so that they form respective receiving areas for the memory cell modules. In order to make the device for power supply as compact as possible even with a large number of memory cell modules, the memory cell modules are placed, for example, in two rows arranged side by side.

In such a device for supplying power to a motor vehicle, the memory cells combined into a unit and the cooler are manufactured as separate components from each other. The cooler of a device for power supply with a plurality of memory cell modules is a one-piece component, in which for the production of the device only the prepared memory cell modules must be introduced. The entire unit of cooler and memory cell modules can be placed in a housing surrounding the components. The housing is arranged and fixed in the motor vehicle at a designated position. Cooling medium connections of the radiator are then connected to a corresponding coolant reservoir of the motor vehicle. An advantage of this approach is that the radiator can be tested as a one-piece, monolithic component before installation in the motor vehicle for leaks. The only connection to be made by the manufacturer of the motor vehicle is the connection of the cooling medium connections with the coolant device of the vehicle.

A disadvantage of such a device for power supply is that, in the case of a plurality of memory cell modules, on the one hand, the cooler has a high degree of complexity. On the other hand, in the vehicle for receiving the device, a surface corresponding to the size of the device is required for arranging and fixing the device. In the case of a change in the geometric dimensions of the memory cells and / or a change in the number of memory cells of a memory cell module, moreover, there is the need to adapt the cooler to the specific characteristics of the memory cell module. Under certain circumstances, a further adaptation of the radiator may result from the fact that, depending on the size of the vehicle, the space required for installing a device having a predetermined number of memory cell modules is not available. This may require adapting the arrangement of the memory cell modules to each other, thereby providing a new cooler each time.

From the DE 10 2008 014 155 A1 a modular battery system with at least two battery modules is known, which can be provided with little effort and cost for different applications and in different sizes. In the battery system proposed there, each battery module has an at least partially cooled by a coolant heat sink and a battery cell. The battery cell is arranged on the heat sink such that a heat-conducting contact between the battery cell and the heat sink is established. There is further provided a coolant supply with a coolant conductor for distributing the coolant to the heat sinks and for discharging the coolant from the heat sinks. The coolant conductor has coolant conductor modules which can be connected to one another and at least partially form the coolant conductor. A disadvantage of in the DE 10 2008 014 155 A1 shown battery system is the fact that the arrangement of the memory cell modules can not be flexible to each other. There is only the possibility of varying the number of battery modules arranged side by side or one behind the other.

It is therefore an object of the present invention to provide a more flexible device for supplying power to a motor vehicle, in which the number and arrangement of memory cell modules can be provided flexibly to each other in a cost effective manner. Another object of the invention is to provide a method for producing such a device.

These objects are achieved by a modular device for power supply according to the features of claim 1 and a method for producing the device according to the features of claim 14. Advantageous embodiments will become apparent from the dependent claims.

The invention provides a modular device for supplying power to a motor vehicle, in particular a car or a motorcycle, comprising at least two memory cell modules, each memory cell module comprising a heat sink through which a cooling medium and at least one electrochemical storage cell, which is conductively connected to the heat sink, and with a coolant line structure over which the heat sinks are connected to each other to guide the cooling medium. The modular device is characterized in that each of the heat sink has at least one Kühlmediumanschlusseingang and a cooling medium connection output, which during or after a sequential mounting of the memory cell modules in the motor vehicle or in a housing either directly or, if the memory cell modules are arranged spatially separated individual lines of the coolant line structure are connected to each other, wherein the lines are adapted to the spatial installation situation.

The invention is based on the consideration that the relative arrangement of a plurality of memory cell modules relative to one another can be varied in that a respective memory cell module comprises a separate heat sink. By a direct connection of each two memory cell modules (by their heatsink are plugged together), a compact device for power supply can be generated. It is readily possible to connect more than two memory cell modules directly to each other serially. If the space required in a motor vehicle for a direct, serial interconnection is not available, the memory cell modules can also be arranged at a distance from one another in the motor vehicle. Spacing means that the memory cell modules can be arranged on a longitudinal axis at a distance from each other and / or laterally offset with respect to the longitudinal axis to each other. In order to ensure the guidance of the cooling medium through the heat sinks of the memory cell modules, respective cooling medium connections (i.e., associated cooling medium connection inputs and outputs to memory cell modules to be connected in series) are then connected to each other via a respective line.

The production or completion of the coolant circuit only after the installation of the memory cell modules in a motor vehicle allows the flexible arrangement of any number of memory cell modules in a vehicle. An advantage of this approach is that with different numbers and / or arrangement of memory cell modules in different types of vehicles not the entire cooler needs to be redeveloped and manufactured, but only the two memory cell modules interconnecting lines. As a result, the costs for the production of a device for power supply over conventional devices can be significantly reduced.

According to an expedient embodiment, each memory cell module comprises identically designed heat sinks with respect to its dimensions and / or the arrangement of its coolant inputs and outputs. By using a standardized heat sink, the cost of manufacturing the power supply device can be reduced due to higher numbers of common parts.

According to a further expedient embodiment, all the memory cell modules of the modular device are identical. If all the components of the memory cell modules are identical, large scaling effects can be achieved in terms of cost.

According to a further expedient embodiment, the connection between a Kühlmediumanschlusseingang a heat sink and a cooling medium connection output of the same or another heat sink; or a Kühlmediumanschlusseingang a heat sink and a line output; or a cooling medium connection output of a heat sink and a line input releasably formed in the form of a coupling or an adapter. In an alternative variant, the abovementioned compounds may also be insoluble, in particular by material, force or positive locking. The design of the connection in detachable form in the manner of a coupling or an adapter allows the rapid production of respective compounds. The choice of a permanent connection has the advantage that a good tightness of the cooling system can be ensured. Likewise, less space is needed.

According to a further embodiment, the conduit is formed of a flexible material. For example, the line may be formed as a hose which can be adapted by bending without special measures of the spatial installation situation. Alternatively, the course of the line can be prefabricated according to the installation situation of two memory cell modules to be interconnected with coolant. As a result, the use of pipes and pipes of a rigid material, such. As metal or plastic, possible, which have no flexible properties.

It is also expedient if the following elements are formed complementary to each other: the Kühlmediumanschlusseingang and the cooling medium connection output of respective heat sink; the Kühlmediumanschlusseingang a heat sink and a line output; the cooling medium connection output of a heat sink and a line input.

The memory cell modules can optionally be arranged in a common housing. The arrangement of all the memory cell modules in a common housing has the advantage that all components can be combined therein and thereby a greater degree of prefabrication is made possible. The housing with the device according to the invention can then be installed as a whole in the motor vehicle. Also for safety reasons, it is preferable to arrange all the components in a single housing. In case of damage to a memory cell, for. B. due to an emergency degassing, other functional components of the vehicle can then not be affected.

It is preferred if the cooling medium connection inlets and outlets are arranged on at least one end face of a respective cooling body. In this way it is possible not to have to make the base of the heat sink much larger than the area of the number of memory cells of the memory cell module. As a result, compact memory cell modules can be provided. It is particularly preferred if at least one coolant inlet and outlet is arranged on opposite end faces of a respective heat sink. This makes it possible in a particularly simple manner, a serial interconnection of the heat sink of the memory cell modules. In particular, the crossing of different lines is not required or can be avoided.

A particularly simple embodiment of the memory cell module results from the fact that the heat sink is designed as a cooling plate, on the main page, the at least one memory cell is arranged. Such a heat sink is particularly suitable for those memory cells which have a prismatic or cylindrical cross-section. In deviating forms of memory cells, such as. B. Coffeebag-like memory cells (so-called. Pouch cells) or other memory cells with non-solid outer shell, it is advantageous if the heat sink has at least at two opposite side edges perpendicular to the main side extending walls. In its simplest embodiment, the heat sink is then U-shaped. Optionally, additional walls may be provided between these two outer walls, so that each memory cell is enclosed by two oppositely disposed walls. Preferably, the walls are thermally bonded to the plate of the heat sink to improve heat dissipation.

The invention further provides a method for producing a device for supplying power to a motor vehicle, in particular a car or a motorcycle, according to one of the preceding claims. The method comprises the following steps: producing a first memory cell module having a first heat sink through which a cooling medium flows, with at least one cooling medium connection input and one cooling medium connection output and at least one electrochemical storage cell that is heat conductively connected to the first heat sink comprises; Producing a second memory cell module comprising a second cooling body through which a cooling medium flows, with at least one cooling medium connection input and a cooling medium connection output, and at least one electrochemical storage cell, which is conductively connected to the second heat sink; sequential mounting of the first and the second memory cell module in the motor vehicle or in a storage housing according to an individual, spatial installation situation; optionally, directly connecting respective cooling medium connection inlets and outlets of the first and second memory cell modules when mounting the memory cells in the vehicle or the storage enclosure or, if the memory cell modules are spatially separated from each other after mounting, connecting respective cooling medium connection inlets and outlets of the first one and the second memory cell module via individual lines, which are adapted to the spatial installation situation.

Preferably, the memory cell modules are arranged in a common housing or in separate housings.

The invention will be explained in more detail below with reference to exemplary embodiments in the drawing. Show it:

1 a perspective view of a single memory cell module for use in a modular device according to the invention,

2 a perspective view of the heat sink of in 1 illustrated memory cell module,

3 a first embodiment of a modular device according to the invention in a perspective view, and

4 A second embodiment of a modular device according to the invention in a perspective view.

1 shows a perspective view of a memory cell module 100 for a device according to the invention for the power supply of a motor vehicle, in particular a car or a motorcycle. The memory cell module 100 exemplifies eight consecutively arranged memory cells 120 on. The memory cells 120 have only a prismatic shape in the exemplary embodiments shown by way of example. The shape of the memory cells is of subordinate importance in principle. The memory cells could also be cylindrical, elliptical or in the form of so-called coffee bags (so-called pouch cells).

The memory cells 120 are with their back on a plate-shaped heat sink 110 applied. The heat sink 110 who in 2 is shown alone in a perspective view, has at its front end 117 a cooling medium connection outlet 111 and a Kühlmediumanschlusseingang 113 on. On its rear, opposite end 118 has the plate-shaped heat sink 110 a Kühlmediumanschlusseingang 112 and a cooling medium port outlet 114 on. The on the opposite ends 117 . 118 arranged Kühlmediumanschlussein- and outputs 112 . 111 respectively. 113 . 114 are each via channels 119 connected, through which a cooling medium can flow. The course of the channels connecting a cooling medium inlet and outlet 119 can be configured as desired. There, how better off 1 it can be seen almost the entire surface of a main page 115 the plate-shaped heat sink 110 with the backs of the memory cells 120 is in contact, it is understood that the course of the channels 119 preferably over the entire surface of the heat sink 110 extends.

Under a cooling medium, both a coolant such. As water or glycol, as well as a coolant in the form of a 2-phase mixture understood.

The cooling medium connection outputs 111 . 114 of the heat sink 110 and the cooling medium port inputs 112 . 113 are formed in the embodiments shown for producing a releasable connection. For example, a releasable connection may be provided in the form of a coupling or an adapter. In this case, the Kühlmediumanschlusseingänge 112 . 113 complementary to the cooling medium connection outputs 111 . 114 educated. This means, for example, at the cooling medium connection outlets 111 . 114 shown neck 116 can directly, ie connected without the interposition of other cooling medium leading components, with a Kühlmediumanschlusseingang another heat sink. The design of the nozzle 116 , Especially on the outside, as well as the design of Kühlmediumanschlusseingänge 112 . 113 on their insides, can be configured by a person skilled in any way. When designing the connection, make sure there is a secure seal around the joint. This can be realized by suitable sealing means.

The preparation of the example designed as a cooling plate heat sink 110 can be done in different ways. For example, the heat sink 110 be produced from a rollbond. Likewise, the production by several layers is possible, wherein in one or more inner layers of the course of the channels 119 , z. B. by lasers, is introduced. Unless the channels 119 by a straight-line connection between the cooling medium connection inputs 112 . 113 and the associated cooling medium connection outlets 111 . 114 is formed, the heat sink can 110 also be made by extrusion. The configuration of the channels in the interior of the heat sink can furthermore be realized by what are known as flat tubes which are embedded between two outer cover layers.

Because the memory cells 120 , like out 1 seen, only with their backs to the heat sink 110 Heat conductively connected, it is advantageous if their cell coats consist of a good heat conducting material. For example, the cell shells of the memory cells 120 be formed of aluminum. As a result, a good heat conduction perpendicular to the main surface 115 of the heat sink 110 guaranteed.

The attachment of the memory cells 120 is preferably carried out by a tension, not shown in the figures. The bracing initially serves to the memory cells arranged one behind the other in the longitudinal direction 120 to tense each other due to chemical reactions in the operation of the storage cells 120 prevent a so-called bulging. For this purpose, the tension comprises a front plate, which with the main side facing the viewer 121 the foremost memory cell 120 is coupled and a rear pressure plate, which with the main page 122 the rearmost memory cell is in mechanical contact. The two printing plates are loaded by a tensioning means, such as welded or bolted rods or plates, to train. The two pressure plates can on their, the heat sink 110 facing side have a flange with recesses. Through these recesses through the strained memory cells heat conductive with the heat sink 110 get connected. In addition, other, for example, positive and / or positive and / or cohesive connections are conceivable.

For example, on her from the heat sink 110 facing away from the memory cells 120 two connection terminals (battery poles) on each. These are also not shown in the figure, since they are of minor importance to the invention. Alternatively, the connection terminals could be on the opposite lateral end faces of the memory cells 120 be provided. However, the arrangement of the connection terminals on its front side has the advantage that the electrical contacting can take place via cell connectors inserted in a connection matrix in a simple manner.

To the cooling of the memory cells 120 could improve, in a graphically not shown modification of the heat sink 110 be provided that the heat sink 110 at two opposite side edges has perpendicular to the main side in the longitudinal direction extending walls. This could additionally via the opposite side edges of the memory cells 120 Heat are dissipated. Depending on the configuration of the memory cells, moreover, it would be possible to arrange between in each case two adjacent memory cells 120 Provide fins, which also conduct heat with the plate-shaped body of the heat sink 110 are connected.

This in 1 illustrated memory cell module 100 is thus basically from the memory cells 120 and an associated active heat sink 110 , ie, a heat sink through which cooling medium flows. The fact that the heat sink is part of a memory cell module, a device for generating voltage, which consists of a plurality of as in 1 shown memory cell modules is flexibly arranged in a housing of the device for power supply. A flexible arrangement is to be understood as any spatial arrangement of two memory cells relative to one another. An actively cooled memory cell module makes it possible to carry out the coolant line structure, via which the heat sinks are connected to one another for the guidance of cooling medium, during or after installation of the memory cell modules in the housing (or alternatively directly the motor vehicle). In particular, two memory cell modules can be connected to each other either directly or, if the memory cell modules are spatially separated, via individual lines of the coolant line structure, wherein the lines are or can be adapted to the spatial installation situation in a simple and cost-effective manner.

3 shows a first embodiment of a modular device for power supply according to the invention with two memory cell modules by way of example 100 . 200 , In principle, it is sufficient if each of the memory cell modules 100 . 200 with regard to its dimensions and / or the arrangement of its coolant inlets and outlets identically formed heat sink 110 . 210 includes. Preferably, however, not only the heat sinks 110 . 210 identical, but all memory cell modules 100 . 200 the modular device 1 identical. In the exemplary embodiment, in the memory cell module 200 thus also eight successively arranged memory cells 220 with its back on a plate-shaped heat sink 210 arranged. As a result, the memory cell modules can be manufactured in a large number, whereby the unit costs are reduced.

In principle, a device 1 any number of memory cell modules with any number of memory cells The number depends on a particular application.

In the in 3 In the embodiment shown, cooling medium connection inlets and outlets facing each other are connected directly to one another. The cooling medium connection output 111 the memory cell module 100 is over a line 150 with the cooling medium connection input 113 connected. The administration 150 has at her the Kühlmediumanschlusseingang 113 facing end a neck 151 and at its the cooling medium port exit 111 facing end a cap 152 on. The cap 152 is in the manner of a coupling or an adapter over the nozzle 116 guided. The stub 151 , which in the illustration is not yet with the Kühlmediumanschlusseingang 113 is coupled and the shape of the neck 116 corresponds, is introduced in this. Likewise, the fluid-tight connection between the associated and opposite Kühlmediumanschlussein- and outputs of the memory cell modules 100 . 200 executed. With her from the memory cell module 100 opposite end face 218 can the device 1 be connected to a coolant supply system or another memory cell module.

In the 3 variant shown allows a space-optimized, modular device. However, the direct connection of a plurality of memory cell modules arranged one behind the other requires that the base area required for this also be available in the motor vehicle, into which the device 1 should be arranged.

In contrast, the device allows 1 according to a second embodiment, the in 4 is shown, an almost arbitrary relative arrangement of the memory cell modules 100 . 200 to each other. In the illustrated perspective view, the memory cell modules 100 . 200 next to each other with an (arbitrary) distance from each other. The connection of respective associated cooling medium port inputs and outputs of the memory cell modules 100 . 200 via lines 160 . 170 , About further illustrated lines 180 . 190 can the memory cell modules 100 . 200 be coupled to other, not shown memory cell modules or a coolant feed. As can be readily seen from the drawing, the cooling medium port outlet 111 the memory cell module 100 over the line 160 with a Kühlmediumanschlusseingang 213 the memory cell module 200 connected. Correspondingly, a cooling medium connection outlet 211 the memory cell module 200 with a Kühlmediumanschlusseingang 113 the memory cell module 100 connected. As in the previous embodiment, the compounds are releasably formed in the form of a coupling or an adapter. For this purpose, the lines 160 . 170 . 180 . 190 a cap at one end 162 . 172 . 182 . 192 for receiving a respective nozzle of the associated cooling medium connection output and a nozzle 161 . 171 for insertion into an associated coolant connection port 113 . 213 on.

Through the lines, it is possible, in principle, any number of memory cell modules 100 . 200 connect serially and / or parallel (in training at least some of the lines as a switch or Y). The lines can be flexible, z. B. in the form of a tube may be formed. The lines may also consist of a rigid material, which is brought into the required shape according to the particular installation situation. The lines can then be formed, for example, of metal or plastic.

If the detachable connection in the manner of a coupling or an adapter with regard to the tightness appears unsafe, appropriate means for locking the connection may be provided. Likewise, the use of a squeezing ring between the line and cap or nozzle is conceivable.

All components, ie all memory cell modules including the lines connecting them, are preferably arranged in a common housing, which after final production of the device 1 is introduced into the motor vehicle.

For the preparation of the device 1 become the memory cell modules 100 . 200 initially introduced into the housing or alternatively directly into the vehicle. In this case, an insulating layer is preferably provided between the cooling plate and the bottom of the housing or of the vehicle so as not to impair the cooling performance. After the storage cell modules are inserted into the housing or the vehicle, the connection of respective associated cooling medium connection inlets and outlets is made. The production of the coolant line structure thus takes place only within the framework of the installation of the memory cell modules in the housing or the vehicle. As a result, a high flexibility is given, since the lines required for the preparation of the connection - if no direct connection of two memory cell modules - can be done by simple and inexpensive hoses or tubes.

LIST OF REFERENCE NUMBERS

1

Device for power supply

100

Memory cell module

110

heatsink

111

Coolant connection output

112

Coolant connection input

113

Coolant connection input

114

Coolant connection output

115

Home

116

Support

117

front

118

front

119

channel

120

memory cell

121

Home

122

Home

150

management

151

Support

152

cap

160

management

161

Support

162

cap

170

management

171

Support

172

cap

180

management

181

Support

182

cap

190

management

192

cap

200

Memory cell module

210

heatsink

211

Coolant connection output

212

Coolant connection input

213

Coolant connection input

214

Coolant connection output

215

Home

216

Support

217

front

218

front

220

memory cell

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008014155 A1 [0008, 0008]

Claims (15)

Modular device ( 1 ) for supplying power to a motor vehicle, in particular a passenger car or a motorbike, with at least two memory cell modules ( 100 . 200 ), each memory cell module ( 100 . 200 ) a cooling medium through which a cooling medium flows ( 110 . 210 ) and at least one electrochemical storage cell ( 120 . 220 ), the heat conducting with the heat sink ( 110 . 210 ), and with a coolant line structure ( 119 ) over which the heat sinks ( 110 . 210 ) are interconnected to guide the cooling medium, characterized in that each of the heat sink ( 110 . 210 ) at least one Kühlmediumanschlusseingang ( 112 . 114 ; 212 . 214 ) and a cooling medium connection outlet ( 111 . 113 ; 211 . 213 ) during or after a sequential mounting of the memory cell modules ( 100 . 200 ) in the motor vehicle or in a housing of the device optionally directly and / or, if the memory cell modules ( 100 . 200 ) are arranged spatially separated from each other, via individual lines ( 150 ; 160 . 170 . 180 ) of the coolant line structure ( 119 ) are connected to each other, wherein the lines ( 150 ; 160 . 170 . 180 ) are adapted to the spatial installation situation. Device according to claim 1, characterized in that each memory cell module ( 100 . 200 ) with regard to its dimensions and / or the arrangement of its coolant inlets and outlets identically formed heat sink ( 110 . 210 ). Device according to claim 1, characterized in that all memory cell modules ( 100 . 200 ) of the modular device are identical. Apparatus according to claim 1, characterized in that the connection between - a Kühlmediumanschlusseingang ( 112 . 114 ; 212 . 214 ) of a heat sink ( 110 . 210 ) and a cooling medium connection outlet ( 111 . 113 ; 211 . 213 ) of the same or another heat sink ( 110 . 210 ); or - a cooling medium connection input ( 112 . 114 ; 212 . 214 ) of a heat sink ( 110 . 210 ) and a line output; or - a cooling medium connection outlet ( 111 . 113 ; 211 . 213 ) of a heat sink ( 110 . 210 ) and a line input is detachably formed in the form of a coupling or an adapter. Apparatus according to claim 1, characterized in that the connection between - a Kühlmediumanschlusseingang ( 112 . 114 ; 212 . 214 ) of a heat sink ( 110 . 210 ) and a cooling medium connection outlet ( 111 . 113 ; 211 . 213 ) of the same or another heat sink ( 110 . 210 ); or - a cooling medium connection input ( 112 . 114 ; 212 . 214 ) of a heat sink ( 110 . 210 ) and a line output; or - a cooling medium connection outlet ( 111 . 113 ; 211 . 213 ) of a heat sink ( 110 . 210 ) and a line input insoluble, in particular by material, force or form fit, is formed. Apparatus according to claim 1, characterized in that the conduit is formed of a flexible material. Apparatus according to claim 1, characterized in that the course of the line according to the installation situation of two to be interconnected with cooling medium memory cell modules ( 100 . 200 ) is prefabricated. Apparatus according to claim 1, characterized in that the following elements are complementary to each other: - the Kühlmediumanschlusseingang ( 112 . 114 ; 212 . 214 ) and the cooling medium connection outlet ( 111 . 113 ; 211 . 213 ) respective heat sink ( 110 . 210 ); - the cooling medium connection input ( 112 . 114 ; 212 . 214 ) of a heat sink ( 110 . 210 ) and a line output; - the cooling medium connection outlet ( 111 . 113 ; 211 . 213 ) of a heat sink ( 110 . 210 ) and a line entrance. Device according to claim 1, characterized in that the memory cell modules ( 100 . 200 ) are arranged in a common housing. Apparatus according to claim 1, characterized in that the Kühlmediumanschlusseingänge and -ausgänge on at least one end face of a respective heat sink ( 110 . 210 ) are arranged. Apparatus according to claim 9, characterized in that on opposite end faces of a respective heat sink ( 110 . 210 ) at least one coolant inlet and outlet is arranged. Device according to claim 1, characterized in that the heat sink ( 110 . 210 ) is formed as a cooling plate, on whose main side ( 115 . 215 ) the at least one memory cell ( 120 . 220 ) is arranged. Apparatus according to claim 12, characterized in that the heat sink ( 110 . 210 ) has at least at two opposite side edges perpendicular to the main side extending walls. Method for producing a device for supplying voltage to a motor vehicle, in particular a motor vehicle or a motorbike, according to one of the preceding claims, comprising the steps of: - producing a first memory cell module ( 100 ), which has a first cooling body through which a cooling medium flows through ( 110 . 210 ) with at least one cooling medium connection input ( 112 . 114 ) and a cooling medium connection outlet ( 111 . 113 ) and at least one electrochemical storage cell ( 120 . 220 ), the heat conducting with the first heat sink ( 110 ); - producing a second memory cell module ( 200 ), which has a second cooling body through which a cooling medium flows through ( 210 ) with at least one cooling medium connection input ( 212 . 214 ) and a cooling medium connection outlet ( 211 . 213 ) and at least one electrochemical storage cell ( 220 ), the heat conducting with the second heat sink ( 210 ); - sequential mounting of the first and the second memory cell module ( 100 . 200 ) in the motor vehicle according to an individual, spatial installation situation; Optionally selectively connecting respective cooling medium connection inlets and outlets of the first and second memory cell modules ( 100 . 200 ) in the mounting of the memory cells in the vehicle or in a housing or, if the memory cell modules ( 100 . 200 ) are arranged spatially separated from each other after the mounting, connecting respective cooling medium connection inputs and outputs of the first and second memory cell modules ( 100 . 200 ) via individual lines ( 150 ; 160 . 170 . 180 ), which are adapted to the spatial installation situation. Method according to claim 14, characterized in that the memory cell modules ( 100 . 200 ) are arranged in a common housing or in separate housings.

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