DE102013020859A1 - Battery and cell block assembly for a battery - Google Patents

Abstract

The invention relates to a cell block arrangement (2) for a battery (13), comprising at least one cell block (1) with a plurality of electrochemical individual cells (3) connected in series and / or in parallel with one another and at least one temperature control plate (8) attached to the cell block (1) ). According to the invention, at least one first connecting element (16) is formed on the tempering plate (8) and at least one second connecting element (17) is formed on the cell block (1), wherein the connecting elements (16, 17) for fixing the tempering plate (8) to the cell block (1). are arranged positively interlocking. Furthermore, the invention relates to a battery (13) with at least one cell block arrangement (2).

Description

The invention relates to a cell block arrangement for a battery according to the features of the preamble of claim 1 and a battery according to the features of the preamble of claim 9.

Batteries, in particular high-voltage batteries, for vehicle applications are generally known from the prior art, in particular traction batteries for storing electrical energy for driving the vehicle. These batteries comprise a plurality of individual and individual electrochemical cells connected in series and / or in parallel with one another, which are arranged with the associated electronics and temperature control in a common housing. The individual cells are summarized in so-called cell blocks, also referred to as cell networks, which each contain a certain number of individual cells including their mechanical fixation, electrical contacting and temperature control devices. At least one tempering plate is arranged on the cell block, by means of which a tempering of the individual cells is carried out. The individual cells are thermally coupled directly or via an electrically insulating and tolerance-compensating heat-conducting foil or a potting compound to the tempering plate.

The invention is based on the object to provide a comparison with the prior art improved cell block assembly for a battery and improved over the prior art battery.

The object is achieved by a cell block arrangement for a battery having the features of claim 1 and a battery having the features of claim 9.

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

A cell block arrangement for a battery comprises at least one cell block with a plurality of electrochemical individual cells electrically connected to one another in series and / or in parallel and at least one temperature control plate attached to the cell block.

According to the invention, at least one first connection element is formed on the temperature control plate, and at least one second connection element is formed on the cell block, wherein the connection elements for fixing the temperature control plate to the cell block are arranged interlockingly in a form-fitting manner.

This solution according to the invention enables in a simple manner and in particular without additional components a secure anchoring of the temperature control directly on the cell block and preferably pressing the temperature over its entire extent on the cell block, so that a good thermal coupling of the cell block is ensured to the temperature. This pressing of the temperature control is required, otherwise an air gap between the temperature and the individual cells to be tempered, whereby the thermal coupling is completely interrupted or significantly deteriorated.

Usually, a heat-conducting foil or a potting compound is arranged between the tempering plate and the cell block to compensate for tolerances and for electrical insulation. These require, in order to ensure the heat transfer from the cell block to the temperature control plate or vice versa, a predetermined biasing force. This assurance of the predetermined biasing force is also achieved by the inventive solution in a simple manner.

In the prior art, this tension between the cell block and the temperature control is carried out by means of a plurality of separate clamping elements, such as screws, which are to be attached individually to the cell block assembly. Due to the large number of clamping elements, a high cost of materials, a high assembly cost and the resulting high costs for the formation of the cell block assembly are required. In addition, the cell block assembly has a high weight.

The inventive solution no separate clamping elements are required, but only the at least one formed on the tempering first attachment member or a plurality of such first attachment elements and the at least one formed on the cell block second attachment element or a plurality of such second attachment elements. The attachment of the temperature control plate on the cell block is then carried out by a direct positive connection of these connection elements of the cell block and the temperature control plate with each other. Additional separate clamping elements which are to be individually attached to the cell block assembly are not required. As a result, the solution according to the invention has a considerably reduced material expenditure and assembly costs compared with the prior art, and thus considerably lower costs for the formation of the cell block arrangement. In addition, the weight of the cell block assembly according to the invention is considerably reduced.

The attachment elements are designed, for example, in each case as a hook, as a claw, as a tongue, as a nose, as a web and / or as an undercut. For example, such first connection elements are formed peripherally on the edge of the temperature control plate, which, for example, in FIG Form of tongues, hooks or claws are formed and clamped in corresponding as a counter bearing, for example in the form of undercuts, trained second connecting elements of the cell block.

Conveniently, the at least one first connection element and / or the at least one second connection element are predefined elastically. In this way, a good clamping of the cell block and the temperature control plate against each other with a predetermined bias is possible. Furthermore, in this way, thermal expansions and setting losses as well as tolerances must be compensated. As a result of this elastic configuration and the tolerance compensation made possible, a thickness of the heat-conducting foil or potting compound arranged between the cell block and the temperature-control plate can be reduced, whereby cost savings and a reduction in installation space are achieved.

In an advantageous embodiment, the at least one first connection element of the temperature control plate is correspondingly formed after arranging the temperature control plate on the cell block corresponding to the at least one second connection element of the cell block and / or the at least one second connection element of the cell block is corresponding to a positioning of the temperature control plate on the cell block converted to this at least one first connection element of the temperature control plate. By this forming after arranging the temperature control plate on the cell block, for example by bending the first connection elements of the temperature in a respective formed as an undercut on the cell block second connection element, a predetermined distance of the temperature control to the cell block and a predetermined tension of the temperature control on the cell block is precisely adjusted and adaptable to the particular conditions of the cell block and the temperature control plate.

Conveniently, the at least one second connection element is formed on a cell holder. The cell holders hold the individual cells positively and / or non-positively in the cell block. The connection of the temperature control plate via the at least one first connection element to the at least one second connection element formed on the cell holder enables a distance and a clamping of the cell holder and thereby the individual cell held by this cell holder to be precisely adjustable with respect to the temperature control plate. In this way the thermal coupling of this single cell of the cell block to the temperature control plate is optimized.

In an advantageous embodiment, the temperature control plate has a plurality of first connection elements at least on one longitudinal side, wherein each of these first connection elements is assigned to a component of the cell block to be fastened to the temperature control plate. For example, the first connection elements are formed at positions on the temperature control plate to which the individual cells or cell holders, which are arranged laterally of the individual cells and hold the individual cells in the cell block, or other components of the cell block, such as cell connectors, cooling bars and / or cooling plates on the Temperature control are arranged.

For this purpose, the first connection elements are expediently designed in a correspondingly high number on the temperature control plate, and they are expediently designed so narrow that they are each assigned to only one of these components of the cell block. For example, each first connection element, for example each hook of the temperature control plate, only engages in a cell holder. This allows tolerance compensation. This may be necessary if gaps between the planar temperature control plate and the cell block, whose components are to be thermally bonded to the temperature control plate, must be compensated for. This height offset is to be compensated in the manner described by means of the respective component of the cell block associated with the first connection element of the temperature control.

Each cell holder of the cell block preferably has at least one second attachment element. In this way, all cell holders and thereby all by means of the cell holder in the cell block positively and / or non-positively held individual cells held by the connection of the temperature control over their respective first connection element with the formed on the respective cell holder second connection element separately on the temperature control, so that the distance and a distortion of the respective cell holder and thereby held by this cell holder individual cell with respect to the temperature control plate is precisely adjustable, even independently of the other cell holders and individual cells of the cell block. In this way, in particular tolerances between the individual cell holders and individual cells can be compensated and the thermal coupling of all individual cells of the cell block to the temperature control plate is optimized.

In an advantageous embodiment, the cell block arrangement comprises two cell blocks, wherein the at least one temperature control plate is arranged between the two cell blocks. For example, one of the cell blocks is arranged on a lower side and the other cell block is arranged on an upper side of the temperature control plate. The temperature control plate then has correspondingly designed first connection elements, ie at least one first connection element extends in the direction of the one cell block and at least one further first connection element extends in the direction of the other cell block, so that the cell blocks are to be fastened by means of these first connection elements and by means of at least one second connection element to the temperature control plate and preferably to be clamped against it. In such a double-cell block, only one tempering plate is required for controlling the temperature of both cell blocks, ie, for example, for controlling the temperature of two rows of individual cells arranged one behind the other.

A battery according to the invention comprises at least one such cell block arrangement as described above. The battery is configured, for example, as a high-voltage battery, for example as a traction battery for an electric vehicle, a fuel cell vehicle or a hybrid vehicle. By forming the battery according to the invention with at least one such cell block arrangement, the advantages already described for the cell block arrangement are achieved for the battery.

The cell block arrangement is preferably fastened in a battery housing via the at least one temperature control plate. For this purpose, the temperature control plate and the connection elements are sufficiently strong and stiff, so that the temperature control can take on a supporting function. The cell block is attached with all its individual components to the temperature control, which is fixed in the battery case. This makes it possible to form the cell block very easily, since, for example, the cell holders, which hold the individual cells in the cell block, only have to assume this function, d. H. the fixation of the single cells in the cell block. The full load of the cell block, however, the cell holder must not wear.

Embodiments of the invention are explained in more detail below with reference to drawings.

Showing:

1 3 is an exploded view of a prior art cell block;

2 1 is an exploded view of a prior art cell block assembly;

3 1 is a schematic perspective view of a prior art cell block assembly;

4 1 is a schematic cross-sectional view of a prior art cell block assembly;

5 1 is a schematic perspective view of a first embodiment of a cell holder;

6 1 is an exploded view of a first embodiment of a cell block;

7 schematically a perspective view of a first embodiment of a cell block,

8th 1 is a perspective view of a first embodiment of a tempering plate,

9 1 is an exploded view of a first embodiment of a cell block assembly;

10 FIG. 2 is a schematic perspective view of a first embodiment of a cell block arrangement prior to attaching a temperature control plate to a cell block. FIG.

11 1 is a schematic perspective view of a first embodiment of a cell block arrangement;

12 1 is a schematic cross-sectional view of a first embodiment of a cell block assembly prior to placing a temperature control plate on a cell block.

13 FIG. 2 schematically a cross-sectional view of a first embodiment of a cell block arrangement after a temperature control plate has been attached to a cell block, FIG.

14 FIG. 2 schematically a perspective view of a second embodiment of a cell holder; FIG.

15 1 is an exploded view of a second embodiment of a cell block;

16 FIG. 2 schematically a perspective view of a second embodiment of a cell block, FIG.

17 1 is an exploded view of a second embodiment of a cell block assembly;

18 1 is a schematic perspective view of a second embodiment of a tempering plate;

19 2 schematically shows a second perspective view of a second embodiment of a tempering plate,

20 FIG. 2 is a schematic perspective view of a second embodiment of a cell block arrangement during placement of a temperature control plate. FIG.

21 1 is a schematic perspective view of a second embodiment of a cell block arrangement;

22 1 is a schematic cross-sectional view of a second embodiment of a cell block arrangement prior to placing a temperature control plate,

23 1 is a schematic cross-sectional view of a second embodiment of a cell block arrangement during placement of a temperature control plate;

24 1 is a schematic cross-sectional view of a second embodiment of a cell block assembly;

25 schematically another perspective view of a second embodiment of a cell block assembly, and

26 schematically a battery.

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

The 1 to 4 show a cell block 1 and a cell block assembly 2 According to the state of the art. The cell block 1 has a plurality of individual and individual electrochemical cells connected in series and / or in parallel with one another 3 on. The single cells 3 are here designed as flat cells, more precisely as so-called pouch cells.

The single cells 3 are aligned parallel to each other and arranged one behind the other. Between every two adjacent single cells 3 is in each case a frame-shaped cell holder 4 arranged. At each end of the cell block 1 is a pressure goggles 5 arranged. The cell block formed in this way 1 is by means of tension bands 6 braced.

On a top side, the individual cells 3 cell poles formed as drainage lugs 7 on, with the cell poles 7 adjacent single cells 3 for the electrical connection of the individual cells 3 each welded in pairs. About this trained as Ableiterfahnen cell poles 7 give the single cells 3 Heat loss to in the example shown here two tempering 8th off which is on the top of the cell block 1 in the transverse direction of the cell block 1 are arranged side by side and each over the entire longitudinal extent of the cell block 1 extend. The tempering plates 8th have connections 9 for integration into a temperature control medium circulation, not shown here, for example of a vehicle, so that a Temperiermittelkanal 10 the respective temperature control plate 8th for temperature control of the individual cells 3 flows through a temperature control.

Between the temperature control plates 8th and the cell block 1 is for electrical isolation and thermal coupling of single cells 3 to the temperature control plates 8th in each case an electrically insulating heat-conducting foil 11 arranged. The tempering plates 8th are on the cell block 1 with a variety of screws 12 screwed on and in this way to the individual cells 3 holding cell holders 4 and pressure goggles 5 and thus at the cell block 1 screwed. For example, per cell block 1 With 31 Single cells 3 and two tempering plates 8th for pressing the cell block 1 with the tempering plates 8th to a predetermined compression of Wärmeleitfolien 11 and to ensure a given so-called zero gap, 128 screws 12 required. To form the cell block assembly 2 From the prior art, therefore, a high material and installation costs is required, resulting in high costs and a high weight result.

The 5 to 13 show by comparison a first exemplary embodiment of a cell block arrangement according to the invention 2 and their required components and the 15 to 25 show a second exemplary embodiment of a cell block assembly according to the invention 2 and their required components. A battery 13 with such a cell block arrangement 2 according to the first or second exemplary embodiment is in 26 schematically shown greatly simplified.

In the first in the 5 to 13 example shown are the single cells 3 also designed as flat cells, but here as so-called prismatic hard case cells with a metallic housing. The cell poles 7 of the single cells 3 are arranged on their respective top.

The single cells 3 are by cell holders 4 made of plastic, also called a spacer, in the cell block 1 positively and / or positively fixed, spaced apart and electrically isolated from each other. Such a cell holder 4 , which is formed for example in a plastic injection molding process, is in 5 shown in perspective. At both ends of the cell block 1 is each a pressure goggles 5 arranged. A compression of the cell block 1 about these pressure goggles 5 done by tie rods 14 , The cell poles 7 are by means of welded cell connectors 15 , for example by laser welding in a so-called overlap method, connected in parallel and / or in series with each other electrically.

This cell block arrangement 2 only has a tempering plate 8th on, which in the example shown here at the bottom of the cell block 1 is arranged so that the single cells 3 over its underside with the tempering plate 8th thermally coupled. The temperature control plate 8th also has connections 9 for incorporation into a temperature control medium circulation circuit, not shown here, for example of a vehicle, so that the temperature control medium duct 10 the temperature control plate 8th for temperature control of the individual cells 3 flows through a temperature control.

The temperature control plate 8th the illustrated embodiment has on both longitudinal sides first connection elements 16 on, which are each formed as a tongue and already in the direction of the cell block 1 are formed bent. The cell holders 4 and in the example shown here, the pressure goggles 5 each have on both sides, which are the long sides of the cell block 1 form, in the lower area near the Temperierplatte 8th second connection elements 17 on, which are formed as undercuts, ie as webs, through which on one of the temperature 8th opposite side of the respective web a recess is formed, in which the respective first connection element 16 the temperature control plate 8th can intervene. Through this intervention are the first connection elements 16 with the respective second connection element 17 positively connected, so that the temperature control 8th at the cell block 1 is secured without additional clamping or fastening means form-fitting.

For final assembly of the cell block assembly 2 is on the bottom of the already using the tie rods 14 longitudinally compressed cell blocks 1 the heat-conducting foil 11 hang up and then, as in 10 shown the tempering plate 8th at the bottom of the cell block 1 to arrange. The individual tongue-shaped first connection elements 16 the temperature control plate 8th are now by means of a bending tool, not shown here to those as webs on the cell holders 4 and pressure goggles 5 trained second connection elements 17 of the cell block 1 around in the direction of the cell block 1 into the respective undercut formation, ie plastically deform, so that the positive connection between the temperature control 8th and the cell block 1 is formed, as in the 11 and 13 shown. The temperature control plate 8th is this way on the cell block 1 with those through the cell holders 4 held single cells 3 attached and in a predetermined manner against the cell block 1 and thus against the single cells 3 braced.

The first connection elements 16 are on the tempering plate 8th formed in such a number, width and position that each of the cell holders 4 two first connection elements 16 the temperature control plate 8th are assigned, one on each longitudinal side of the cell block 1 , This is a secure connection of each cell holder 4 and thereby by the respective cell holders 4 held single cells 3 to the temperature control plate 8th ensured. In particular, this tolerances are compensated, for example, a height offset, which the cell holder 4 of the cell block 1 have one another, and a possible height offset between the second connection elements 17 the individual cell holder 4 , so that an arrangement of all single cells 3 in a predetermined manner on the temperature control 8th , in particular with a predetermined compression of the heat-conducting foil 11 , is ensured. This is the thermal coupling of all single cells 3 of the cell block 1 to the temperature control plate 8th optimized.

The tongue-shaped first connection elements 16 the temperature control plate 8th are preferably designed such that they are to be plastically deformed both in the manner described above, ie are umzubiegen to order in the second connection elements 17 of the cell block 1 intervene, but are also elastic in a predetermined manner, ie allow an elastic deformation up to a predetermined maximum. This shows the first connection elements 16 a spring effect. In this way, thermal expansions and settling phenomena are to be compensated, as by the spring action pressing the by the cell holder 4 held single cells 3 to the temperature control plate 8th is ensured in a predetermined manner.

The temperature control plate 8th is preferably solid, for example, as a die-cast aluminum part with inserted tube coil, which the Temperiermittelkanal 10 forms. Due to this massive design of the temperature control 8th At the same time, it serves to mechanically stabilize the cell block arrangement 2 ,

Preferably, the cell block assembly 2 over this stable tempering plate 8th in a battery case 18 the in 26 exemplified battery 13 attached. This is possible because of the cell block 1 with all its individual components via the second connection elements 17 and the first connection elements 16 on the temperature control plate 8th which is fixed in the battery case 18 is fixed. This makes it possible for the cell block 1 very easy to train because, for example, the cell holder 4 which the single cells 3 in the cell block 1 just have to take over this function, ie the fixation of the individual cells 3 in the cell block 1 , The full load of the cell block 1 need the cell holders 4 however, do not wear, so that they can be designed according to light weight and with a low cost of materials and space requirements. To this Way is also a space requirement of the cell block 1 and thus the cell block assembly 2 and the battery 13 reduced.

In the second in the 14 to 25 example shown are the single cells 3 also formed as flat cells, more precisely as so-called pouch cells whose electrochemically active content is surrounded by a foil-like packaging, through which the cell poles 7 are led out as arresters in sheet form. The single cells 3 are by frame-shaped cell holders 4 at least non-positively in the cell block 1 fixed and arranged at a predetermined distance from each other. Such a cell holder 4 , which is formed for example in a plastic injection molding process, is in 14 shown in perspective.

The compression of the cell block 1 from cell holders 4 and single cells 3 in the longitudinal direction of the cell block 1 via tension bands 6 and pressure goggles 5 , which on both end faces of the cell block 1 are arranged. The serial and / or parallel electrical connection of the individual cells 3 takes place via the direct connection of the cell poles designed as discharge lugs 7 adjacent single cells 3 , which are bent towards each other and are welded together by laser, for example in the overlapping method.

About this trained as Ableiterfahnen cell poles 7 the temperature control of the individual cells is also carried out 3 , in particular the dissipation of the heat loss of the individual cells 3 , These are the individual cells 3 with two on the top of the cell block 1 arranged tempering 8th thermally coupled, wherein between each Temperierplatte 8th and the cell block 1 one heat-conducting foil each 11 is arranged.

The tempering plates 8th are on the cell block 1 arranged in the transverse direction next to each other and each extending over its entire longitudinal extent. They have connections 9 for incorporation into a temperature control medium circulation circuit, not shown here, for example of a vehicle, so that the temperature control medium duct 10 the respective temperature control plate 8th for temperature control of the individual cells 3 flows through a temperature control.

The tempering plates 8th For example, each formed from two aluminum sheets soldered together. They each have two different types of first attachment elements on their two longitudinal sides 16 on. So is a long side of each temperature plate 8th in the direction of the cell block 1 bent over, so that a hook-shaped first connection element 16 is formed with a semicircular cross-section which extends over the entire longitudinal extent of the respective temperature control plate 8th extends and hook-shaped towards the cell block 1 curves. This long side of the respective temperature control 8th with the first connection element formed in this way 16 is in a transverse direction of the cell block 1 middle area of the top of the cell block 1 positioned.

The cell holders 4 and also the pressure goggles 5 each have on their upper side in this central region two corresponding thereto and designed as a nose-shaped Eingriffsausformungen second connection elements 17 on, leaving each tempering plate 8th with its extending over an entire longitudinal side first connection element 16 in each case designed as a Eingriffsausformung second connection element 17 every cell holder 4 and the pressure goggles 5 is to mount. For this purpose, these extend as nose-shaped Eingriffsausformungen in the central region of the top of the cell holder 4 and the pressure goggles 5 trained second connection elements 17 each transverse to the center of the cell block 1 ,

The respective longitudinal direction of the cell block 1 arranged on each other second connection elements 17 the cell holder 4 and pressure goggles 5 thus form a to a complete longitudinal side of the respective temperature control 8th extending first connection element 16 corresponding form. An end edge of the first connection element 16 the respective temperature control plate 8th points in the direction of a respective longitudinal outer side of the cell block 1 and thus engages by hooking on the respective formed as Eingriffsausformungen second connection elements 17 the cell holder 4 and pressure goggles 5 under these second connection elements 17 , so that the longitudinal side of the respective temperature control plate 8th , which this continuous first connection element 16 has, by this hooking on the cell holders 4 and pressure goggles 5 and thus at the cell block 1 is attached.

On the other side of the tempering plate 8th , which the longitudinal side with the longitudinally continuous first connection element 16 opposite and in the area of the outer edge of the cell block 1 is positioned, have the two tempering 8th another type of first connection elements 16 on. Here are the first connection elements 16 each tongue-shaped. When the tempering plates 8th on the cell block 1 are arranged, these tongue-shaped first connection elements 16 in each case one longitudinal edge of the top of the cell block 1 positioned. These tongue-shaped first attachment elements 16 are similar to the respective temperature control plate 8th designed as the first connection elements 16 in the 5 to 13 described another embodiment.

The cell holders 4 and also the pressure goggles 5 each have at their top near the two longitudinal edges of the cell block 1 two trained as nose-shaped Eingriffsausformungen second connection elements 17 on, which are each in the transverse direction of the cell block 1 to the respective longitudinal edge of the top of the cell block 1 extend.

When assembling this cell block assembly 2 are first the Wärmeleitfolien 11 on the cell block 1 to arrange, as in 22 shown. After that are the tempering plates 8th , as in 23 shown with her over the entire longitudinal side extending hook-shaped first connection element 16 in the respective nose-shaped second connection element 17 in the middle area of the top of the cell holder 4 and pressure goggles 5 hang on top of the cell block 1 down to the horizontal.

By means of screw elements 19 Now, first a prefixing of the tempering 8th over their transverse edge areas on the pressure goggles 5 of the cell block 1 , as in 21 shown. Then, as already in the 5 to 13 described another embodiment, the individual tongue-shaped first connection elements 16 on the outer longitudinal side of the respective temperature control plate 8th in each case by means of a bending tool, not shown here, around the second connecting elements designed as nose-shaped engagement formations 17 at the cell holders 4 and pressure goggles 5 around in the direction of the cell block 1 in through these second connection elements 17 trained undercut formations into it, ie plastically deform, so that the positive connection between the temperature control 8th and the cell block 1 is formed, as in the 24 and 25 shown. The tempering plates 8th are in this way on the cell block 1 with those through the cell holders 4 held single cells 3 attached and in a predetermined manner against the cell block 1 and thus against the single cells 3 braced.

The tongue-shaped first connection elements 16 on the outer longitudinal sides of the tempering plates 8th are also formed here in such a number, width and position that each of the cell holders 4 Such a tongue-shaped first connection element 16 the respective temperature control plate 8th assigned. In addition, the cell holders 4 even with their formed in the central region of the top another second connection elements 17 individually to those in the longitudinal direction of the cell block 1 continuously formed hook-shaped first connection elements 16 the respective temperature control plate 8th hooked. By trained in this way positive connection of the respective cell holder 4 with the tempering plates 8th is a secure connection of every single cell holder 4 and thereby by the respective cell holders 4 held single cells 3 to the temperature control plate 8th ensured.

In particular, thereby, as already above in the 5 to 13 illustrated another embodiment described to compensate for tolerances, for example, a height offset, which the cell holder 4 of the cell block 1 have among themselves, and further a possible height offset between the second connection elements 17 the individual cell holder 4 , so that an arrangement of all single cells 3 in a predetermined manner on the temperature control 8th , in particular with a predetermined compression of the Wärmeleitfolien 11 , is ensured. This is the thermal coupling of all single cells 3 of the cell block 1 to the temperature control plates 8th optimized.

Again, the tongue-shaped first attachment elements 16 on the outer longitudinal side of the respective temperature control plate 8th preferably designed such that they are both plastically deform in the manner described above, ie are umzubiegen to order in the second connection elements 17 of the cell block 1 intervene, but are also elastic in a predetermined manner, ie allow an elastic deformation up to a predetermined maximum. This shows the first connection elements 16 Here, too, the spring action, whereby thermal expansion and settling phenomena are compensated, as by the spring action pressing the through the cell holder 4 held single cells 3 to the temperature control plates 8th is ensured in a predetermined manner.

LIST OF REFERENCE NUMBERS

1

cell block

2

Cell block arrangement

3

single cell

4

cell holder

5

pressure glasses

6

strap

7

cell pole

8th

tempering

9

connection

10

temperature control medium

11

Heat conducting

12

screw

13

battery

14

tie rods

15

cell connectors

16

first connection element

17

second connection element

18

battery case

19

screw

Claims (10)

Cell block arrangement ( 2 ) for a battery ( 13 ) comprising at least one cell block ( 1 ) with a plurality of electrochemical individual cells connected in series and / or in parallel with one another electrically ( 3 ) and at least one on the cell block ( 1 ) attached tempering plate ( 8th ), characterized in that on the temperature control plate ( 8th ) at least a first connection element ( 16 ) and at the cell block ( 1 ) at least one second connection element ( 17 ) is formed, wherein the connection elements ( 16 . 17 ) for fixing the temperature control plate ( 8th ) at the cell block ( 1 ) are arranged positively interlocking. Cell block arrangement ( 2 ) according to claim 1, characterized in that the connection elements ( 16 . 17 ) are each formed as a hook, as a claw, as a tongue, as a nose, as a web and / or as an undercut. Cell block arrangement ( 2 ) according to claim 1 or 2, characterized in that the at least one first connection element ( 16 ) and / or the at least one second connection element ( 17 ) is elastic. Cell block arrangement ( 2 ) according to one of claims 1 to 3, characterized in that the at least one first connection element ( 16 ) of the temperature control plate ( 8th ) after arranging the temperature control plate ( 8th ) at the cell block ( 1 ) corresponding to the at least one second connection element ( 17 ) of the cell block ( 1 ) is formed and / or that the at least one second connection element ( 17 ) of the cell block ( 1 ) after arranging the temperature control plate ( 8th ) at the cell block ( 1 ) corresponding to the at least one first connection element ( 16 ) of the temperature control plate ( 8th ) is transformed. Cell block arrangement ( 2 ) according to one of the preceding claims, characterized in that the at least one second connection element ( 17 ) on a cell holder ( 4 ) is trained. Cell block arrangement ( 2 ) according to one of the preceding claims, characterized in that the tempering plate ( 8th ) at least on one longitudinal side a plurality of first connection elements ( 16 ), each of these first connection elements ( 16 ) one on the temperature control plate ( 8th ) to be attached to the cell block ( 1 ) assigned. Cell block arrangement ( 2 ) according to claim 5 or 6, characterized in that each cell holder ( 4 ) of the cell block ( 1 ) at least one second connection element ( 17 ) having. Cell block arrangement ( 2 ) according to one of the preceding claims, characterized by two cell blocks ( 1 ), wherein the at least one tempering plate ( 8th ) between the two cell blocks ( 1 ) is arranged. Battery ( 13 ) with at least one cell block arrangement ( 2 ) according to one of claims 1 to 8. Battery ( 13 ) according to claim 9, characterized in that the cell block arrangement ( 2 ) via the at least one tempering plate ( 8th ) in a battery case ( 18 ) is attached.

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