DE102013020862A1 - battery - Google Patents

Abstract

The invention relates to a battery (1) with a battery housing (2) and at least one in the battery housing (2) arranged cell block (3), which comprises a number of electrically series and / or parallel interconnected individual cells (4) by means of mechanical Fixing elements (5, 6) are fixed within the cell block (3). In each case, a fixing element (6) arranged at an end face of the cell block (3) and at least one fixing element (5) arranged therebetween are non-positively and / or positively and / or materially connected to at least one battery housing part (2.1, 2.2).

Description

The invention relates to a battery according to the preamble of claim 1.

High-voltage batteries for vehicle applications consist of a number of electrically series and / or parallel-connected single cells, which are located with the associated electronics and cooling in a common housing. The individual cells are combined in so-called cell blocks, each comprising a plurality of individual cells including their mechanical fixation, contacting and temperature control devices.

In the case of rectangularly formed individual cells, such as, for example, so-called pouch cells or prismatic hardcase cells, these are fixed by means of fixing elements, which are either arranged between the individual cells or enclose each of these, whereby a fixing element is designed in shell form or in frame form. The mechanical fixation of the cells is substantially non-positively by friction between the fixing elements and the individual cells when the cell block via clamping elements, for. As tie rods, threaded rods, screws, straps, and pressure plates is pressed.

To dissipate a heat loss of the individual cells, the cell block must be cooled. This is done by liquid cooling or by cooling by means of pre-cooled air, which is passed directly between the individual cells. For reasons of space usually liquid cooling is used. In this solution, a cooling plate through which refrigerant flows is arranged on the cell block. In the longitudinal direction of the single cell, the heat is passed either through separate cooling rods or through the uniformly on the circumference partially thickened cell wall of the individual cells to the cooling plate. The heat technology connection of the individual cells to the cooling rods is material and form fit by potting compound. At the same time, the potting compound takes on the electrical insulation and fixes the individual cells in the cell assembly.

For receiving the cell block in a battery case, this usually has a certain number of receiving elements, by means of which the cell block is fixed in the battery case. To protect the cell block and against mechanical stress, the battery housing is made of metal or metal reinforced according to the principle of the Faraday cage.

The fixation of the cell block in the battery housing is effected by means of the receiving elements over an edge region, in particular on the pressure plates of the cell block, so that it must be made sufficiently strong and stiff in order to reduce the risk of damage to mechanical operating loads, eg. B. continuous vibration and / or shock loads to reduce. These very high preload forces by the clamping means are necessary, for. B: by means of a plurality of high-strength screws, tie rods and / or tension bands. Furthermore, the pressure goggles for a sufficiently high force, which is introduced during compression in the cell block, made of a metal such. As aluminum or steel formed. In order to compensate for setting losses of the fixing elements made of plastic, these metal inserts have.

The invention is based on the object to provide a comparison with the prior art improved battery.

The object is achieved by a battery with the characterizing features of claim 1.

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

In a battery having a battery housing and at least one cell block arranged in the battery housing, the latter comprises a number of individual cells which are electrically connected in series and / or in parallel and which are fixed within the cell block by means of mechanical fixing elements. According to the invention, in each case one fixing element arranged at an end face of the cell block and at least one fixing element arranged therebetween are non-positively and / or positively and / or materially connected to at least one battery housing part.

By virtue of the fact that at least one fixing element arranged between the end-side fixing elements is connected to the battery housing by force and / or form and / or material connection, pretensioning forces for pressing the cell block over the prior art can be reduced. This is due to the mechanically stable design of the battery case, which allows this by the force and / or positive and / or cohesive bond with the cell block this sufficient rigidity. Thus, the cell block can be made of a material having a comparatively low weight and a low manufacturing cost.

For a positive connection of the cell block with the at least one battery housing part, a fastening strip is arranged on it, which in particular serves to fix the cell block in its transverse extension.

In a first embodiment, the at least one fixing element has at least one axially projecting on a lateral outer side Section on which forms an undercut, wherein the fastening strip is engageable in the undercut. The fastening strip thus forms a positive connection between the cell block and the battery housing part with the undercut of the fixing element.

For non-positive fixing of the cell block, the outwardly projecting portion has a recess for receiving a fastening element, wherein the recess corresponds to a arranged in the mounting bar receiving opening. Ie. in the installed state of the cell block, the recess and the receiving opening are aligned with each other, so that the fastening element can be guided through the recess into the receiving opening and fixed there. Preferably, each fixing element has on both lateral outer sides a projecting portion with the recess, so that the cell block, in particular in its longitudinal extent, can be fixed in the battery housing.

In a second embodiment, the at least one fixing element equivalent to the first embodiment has at least one axially projecting portion, which forms an undercut, but is not provided with a recess. At the at least one battery housing part, the fastening strip and a spring bar is arranged, in which the projecting portions can be latched. The spring strip thus forms with the at least one fixing element an elastic positive connection between the cell block and the battery housing part. About the mounting bar, which engages in the undercut, an additional positive connection between the cell block and the battery housing part is ensured.

In a third embodiment, the at least one fixing element has at least one first groove-shaped recess which forms a casting mold with a corresponding, second groove-shaped recess arranged on the fastening strip, into which a casting compound can be introduced. The potting compound, for example, a thermosetting plastic, so that the cell block with the battery housing part is positively and materially connected.

Alternatively, the at least one fixing element can be adhesively bonded to the at least one battery housing part, wherein a fastening strip can be dispensed with. Thus, a weight of the battery can be reduced in an advantageous manner.

In a preferred exemplary embodiment, a fixing element which is arranged on the cell block on the front side is designed as a pressure plate which has on its front side, facing away from an adjacent fixing element, at least one further axially projecting section which is provided with a recess for receiving a fastening element. Thus, the cell block is additionally fixed in a non-positive fit with the battery housing part in all four embodiments.

All of the embodiments described above allow attachment of the cell block to an inside of the battery housing part, so that a risk of leaks is at least reduced and the cell block is substantially protected from external influences.

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

Showing:

1 1 is a perspective view of a cell block for a battery in a first embodiment with a number of single cells and fixing elements in an exploded view;

2 schematically in perspective view of the cell block according to 1 in the assembled state,

3 schematically in perspective view of the cell block according to 2 before installing it in a battery case bottom,

4 schematically in perspective view of the built-in battery case floor cell block according to 3 before placing a battery case cover,

5 schematically a sectional view of the battery according to the first embodiment in the assembled state with a cell block, a battery housing bottom and battery case cover,

6 schematically an enlarged section of the sectional view according to 5 .

7 1 is a perspective view of a cell block for a battery in a second embodiment prior to installation in a battery housing base;

8th schematically in perspective view of the built-in battery case floor cell block according to 7 .

9 schematically an enlarged section of the perspective view according to 8th .

10 schematically a sectional view of a battery according to the second embodiment in the assembled state with a cell block, a battery case bottom and battery case cover,

11 schematically an enlarged section of the sectional view according to 10 .

12 1 is a perspective view of a cell block for a battery in a third embodiment prior to installation thereof in a battery case bottom;

13 schematically another perspective view of the cell block according to 12 .

14 schematically an enlarged section of the perspective view according to 13 .

15 schematically a sectional view of a battery according to the third embodiment in the assembled state with a cell block, a battery housing bottom and battery case cover,

16 schematically an enlarged section of the sectional view according to 15 .

17 FIG. 2 schematically shows a cell block for a battery in a fourth embodiment with alternatively formed single cells and fixing elements in exploded view, FIG.

18 schematically in perspective view of the cell block according to 17 in the assembled state,

19 schematically in perspective view of the cell block according to 18 before installing it in a battery case bottom,

20 schematically in perspective view of the built-in battery case floor cell block according to 19 and

21 schematically a sectional view of the cell block according to 20

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

The 1 to 6 show a battery according to the invention 1 in a first embodiment with a battery case 2 and a cell block arranged therein 3 , The show 1 the cellbuck 3 in perspective in exploded view and 2 in perspective in the assembled state. In 3 is the cell buck 3 in perspective before installation in a battery case bottom 2.1 of the battery case 2 and in 4 in perspective in the battery case floor 2.1 installed state shown. The 5 shows the battery 1 in a sectional view, in particular in cross section, in the assembled state. In 6 is an enlarged section of the in 5 shown sectional view of the battery 1 shown.

At the battery 1 In particular, it is a high-voltage battery for a non-illustrated vehicle, which may be an electric vehicle, a hybrid vehicle or a fuel cell powered vehicle, wherein the battery 1 a traction battery is.

In the present embodiment, the battery 1 from the battery case 2 and one in the battery case 2 fixed cell block 3 educated. Alternatively, the battery 1 also several cell blocks 3 include.

The battery case 2 settles out of the battery case bottom 2.1 and the battery case lid 2.2 together, which each trough-shaped with a bottom wall 2.1.1 . 2.2.1 , four side walls 2.1.2 . 2.2.2 and a circumferential flange 2.1.3 . 2.2.3 are formed. The battery case bottom 2.1 is with the battery case cover 2.2 over the flanges 2.1.3 . 2.2.3 positive and / or positive and / or cohesive, z. B. by welding, connectable.

The cell block 3 is from a number of electrically series and / or parallel-connected single cells 4 formed, which are formed in the present embodiment as so-called pouch cells or coffee-bag cells, in which an electrochemically active content is surrounded by a film-like packaging. The packaging is formed from two film sections arranged one above the other, which in the overlapping edge region are bonded to one another in a material-bonded manner, for example by means of a hot-pressing process, a sealed seam 4.1 is formed. On one side of the single cell 4 are electrical poles 4.2 as connections in sheet form led out of the packaging.

To form the cell block 3 become adjacent single cells 4 each rotated by 180 degrees around its vertical axis against each other and by means of fixing elements 5 , also called spacer, arranged at a defined distance from each other and electrically isolated from each other. This is the single cells 4 arranged mechanically stable to each other and at least axially in the longitudinal extension of the cell block 3 positioned.

The fixing elements 5 are presently designed as a so-called half-frame, wherein between two adjacent fixing elements 5 one each single cell 4 frictionally by friction between the fixing elements 5 and the sealed seam 4.1 is held. Furthermore, the fixing elements 5 formed of plastic, for example polypropylene, polyamide, polyethylene terephthalate with or without plastic reinforcement and produced in an injection molding process.

Furthermore, the fixing elements 5 in a contact area to the respectively adjacent fixing element 5 provided with a layer formed of an elastic material, for example a rubber, an elastomer, silicone, ethylene-propylene-diene rubber, which forms one in the cell block 3 introduced force evenly into the sealed seam 4.1 of the single cells 4 initiates and increases a coefficient of friction. The fixing element 5 presses on the sealed seam 4.1 the single cell 4 , wherein the single cell 4 in the axially compressed state of the cell block 3 is fixed substantially non-positively and positively.

The while pressing the cell block 3 arising force is placed on the front side fixing elements 5 , which in the present embodiment as printing plates 6 are formed in the cell block 3 initiated, which together with the fixing elements 5 Having through holes not shown, through which a threaded rod, a tie rod and / or other suitable clamping means for stiffening the cell block 3 can be passed.

The printing plates 6 be by means of tension bands 7 with the cell block 3 pressed. In the present embodiment, the cell block 3 with two straps 7 provided, which are spaced apart in high alignment and the cell block 3 completely enclose in the circumferential direction, so that this particular stiffened in longitudinal extent. The tension bands 7 are made of plastic or fiber-reinforced plastic, for example. This is a corresponding rigidity of the cell block 3 ensured so that this in the battery case 2 can be fixed.

To those of the straps 7 , the printing plates 6 and to keep comparatively low biasing forces generated by other clamping means, such as tie rods or threaded rods, the cell block becomes 3 over the printing plates 6 and the fixing elements 5 with the battery case 2 connected.

For this purpose, the fixing elements 5 and the printing plates 6 in the first embodiment of the invention on both lateral outsides 5.1 . 6.1 , in particular in a lower region of the lateral outer sides 5.1 . 6.1 , in each case an axially projecting from this section 5.1.1 . 6.1.1 on. The projecting section 5.1.1 . 6.1.1 has a substantially rectangular cross-section, which is not edge-side with the lower edge region of the fixing 5 or the printing plate 6 but an undercut 5.1.2 . 6.1.2 forms. In the assembled state of the cell block 3 are the projecting sections 5.1.1 . 6.1.1 transverse to the longitudinal extent of the cell block 3 aligned.

Furthermore, the printing plates have 6 each at their the adjacent fixing 5 opposite end faces two more projecting sections 6.1.3 on, which in the present embodiment have an approximate L-shape in side view, wherein a long leg, which is transverse to the longitudinal extent of the cell block 3 extends, has a tapered surface.

The projecting sections 5.1 . 6.1 as well as the other protruding sections 6.1.3 the printing plates 6 are each with a continuous recess 5.2 . 6.2 for passing a fastener 8th provided, with the other projecting sections 6.1.3 the recesses 6.2 have on a short, perpendicular from the end face to the outside protruding leg.

The recesses 5.2 . 6.2 serve for passing fasteners 8th by which the cell block 3 with the battery case bottom 2.1 is positively connected. Alternatively, the cell block 3 also with the battery case cover 2.2 be positively connected. A fastener 8th can as a screw, a rivet and / or as another suitable for traction fastener 8th be educated.

For holding the fasteners 8th points the battery case bottom 2.1 a number of receiving openings 2.1.4 on, which in the present embodiment in a fastening strip 2.1.5 are arranged. The number of receiving openings 2.1.4 corresponds to the number of recesses 5.2 . 6.2 , The fastening strip 2.1.5 is a border area of the bottom wall 2.1.1 of the battery case bottom 2.1 arranged circumferentially and has a cross-sectionally U-shaped hollow profile.

The fastening strip 2.1.5 can be material and / or positive and / or non-positive with the bottom wall 2.1.1 of the battery case bottom 2.1 be connected. For example, the fastening strip 2.1.5 with the bottom wall 2.1.1 of the battery case bottom 2.1 welded. Alternatively, the fixing strip 2.1.5 also the edge area of the bottom wall 2.1.1 be arranged partially circumferential. Also in cross-section U-shaped profile of the mounting bar 2.1.5 may have a correspondingly different suitable cross-sectional profile, which preferably with a shape of the undercut 5.1.2 . 6.1.2 corresponds.

For fixation of the cell block 3 in the battery case 2 this is in the battery case floor 2.1 used in such a way that the recesses 5.2 . 6.2 with the receiving openings 2.1.4 are in flight with each other. The fastening strip engages 2.1.5 in the undercuts 5.1.2 . 6.1.2 one, leaving the fixing elements 5 and the printing plates 6 in the area of the undercut 5.1.2 . 6.1.2 a positive connection between the cell block 3 and the battery case bottom 2.1 form, leaving the cell block 3 is fixed in transverse dimension.

For subsequent non-positive fixation of the cell block 3 and a fixation of the cell block 3 in longitudinal extension become the fasteners 8th through the recesses 5.2 . 6.2 through into the receiving openings 2.1.4 guided and for example by tightening the fasteners 8th fixed.

By the arrangement of the fasteners 8th in an interior of the battery case 2 is a risk of leakage at least reduced.

The 7 to 11 show a second embodiment of the invention. It shows the 7 in perspective a cell block 3 in the assembled state prior to installation in a battery case bottom 2.1 , The 8th shows the cell block 3 out 7 , this in the battery case bottom 2.1 is arranged. The 9 shows an enlarged section of the in 8th Perspective cell block 3 , In 10 is a battery 1 with the cell block 3 in the assembled state in a sectional view, in particular in cross section shown. The 11 shows an enlarged section of the in 10 shown sectional view.

The cell block 3 is formed in the second embodiment equivalent to the first embodiment, wherein the projecting portions 5.1.1 . 6.1.1 with the exception of the other projecting sections 6.1.3 no recesses 5.2 . 6.2 exhibit.

The in the battery case floor 2.1 arranged fastening strip 2.1.5 has only four receiving openings in the second embodiment 2.1.4 on that with the recesses 6.2 the other projecting sections 6.1.3 the printing plates 6 correspond.

On two opposite sides of the mounting strip 2.1.5 which have no receiving openings 2.1.4 each has a spring bar 2.1.6 arranged, which are parallel to the corresponding section of the fastening strip 2.1.5 and thus in longitudinal extension of the cell block 3 run.

The spring strips 2.1.6 are made of a material with a correspondingly necessary elasticity and strength, such. As spring steel, manufactured and with a lower edge region with the mounting strip 2.1.5 positively and / or positively and / or materially connected. A high above the mounting bar 2.1.5 arranged area of the spring strip 2.1.6 extends towards the flange 2.1.3 and then at the level of the flange 2.1.3 curved inward, leaving a free end of the spring bar 2.1.6 in the direction of the bottom wall 2.1.1 is directed, with the free end 2.1.6 in the vertical direction above the mounting strip 2.1.5 is arranged. Through the curved, free end of the spring bar 2.1.6 is a groove 2.1.6.1 formed in which when inserting the cell block 3 in the battery case bottom 2.1 the projecting sections 5.1.1 . 6.1.1 engage, so that an elastic form fit between the cell block 3 and the battery case bottom 2.1 is made, in particular 11 shows.

In addition, the cell block 3 with the battery case bottom 2.1 by means of the fastening elements 8th frictionally fixed in the recesses 6.2 the other projecting sections 6.1.3 and in the corresponding receiving openings 2.1.4 are fixed.

In an alternative embodiment of the second embodiment, the spring bar 2.1.6 even after the compression of the cell block 3 connected to this by means of the elastic positive connection described above and then after insertion of the cell block 3 in the battery case bottom 2.1 be welded with this.

The 12 to 16 show a third embodiment of the invention. The show 12 and 13 in perspective a cell block 3 in the assembled state prior to installation in a battery case bottom 2.1 , The 14 shows an enlarged section of the in 13 Perspective cell block 3 , In 15 is a battery 1 with the cell block 3 in the assembled state in a sectional view, in particular in cross section shown. The 16 shows an enlarged section of the in 15 shown sectional view.

The cell block 3 is formed in the third embodiment equivalent to the first or second embodiment, wherein the fixing elements 5 and the printing plates 6 with the exception of the other projecting sections 6.1.3 no protruding sections 5.1.1 . 6.1.1 exhibit.

The fixing elements 5 and the printing plates 6 have at their lower edge regions of the lateral outer sides 5.1 . 6.1 each first groove-shaped recesses 5.1.3 . 6.1.4 on which oneself in the assembled state of the cell block 3 extend in the longitudinal extent and are spaced apart in the high expansion.

The fastening strip 2.1.5 has two opposite sides, which have no receiving openings 2.1.4 have, to the first groove-shaped recesses 5.1.3 . 6.1.4 corresponding second groove-shaped recesses 2.1.7 on. In the present embodiment, the fixing elements 5 , the printing plates 6 and the sides of the mounting strip 2.1.5 in each case four groove-shaped recesses 5.1.3 . 6.1.4 . 2.1.7 on. Alternatively, more or less groove-shaped recesses 5.1.3 . 6.1.4 . 2.1.7 to be ordered.

When inserting the cell block 3 in the battery case bottom 2.1 this is done by means of fasteners 8th frictionally with the battery case bottom 2.1 prefixed. Due to the arranged recesses 5.1.3 . 6.1.4 . 2.1.7 are between the fixing elements 5 , the printing plates 6 and the fastening strip 2.1.5 Grooved cavities arranged, which form a casting mold 9 for cohesive connection of the cell block 3 with the battery case bottom 2.1 form as they are in 16 is shown.

In this casting mold 9 a potting compound is filled, which is made for example of a thermosetting plastic such as epoxy resin. By means of potting compound is the cell block 3 material and form-fitting with the battery case bottom 2.1 connected.

Alternatively, it is also possible to use the cell block 3 with the battery case bottom 2.1 cohesively connect, wherein on the recesses 5.1.3 . 6.1.4 . 2.1.7 is waived. This will be the cell block 3 over the fixing elements 5 and / or the printing plates 6 with the battery case bottom 2.1 bonded.

The 17 to 21 show a fourth embodiment of the invention. It shows the 17 in perspective a cell block 3 in exploded view. In 18 is the cell block 3 shown in the assembled state. The 19 shows the cell block 3 in the assembled state prior to installation in a battery case bottom 2.1 , In 20 is the cell block 3 out 19 shown, with this in the battery case bottom 2.1 is arranged. The 21 shows a sectional view, in particular a cross section of the in 20 shown cell blocks 3 ,

The cell block 3 In the fourth embodiment, prismatic hardcase cells are single cells 4 on.

Such single cells 4 comprise an electrochemically active electrode foil arrangement in the form of an electrode foil winding or an electrode foil stack, which is arranged in a comparatively stable housing.

The electrode foil arrangement is formed by layers of cathode and anode foils which are each separated by separator layers. For example, in a lithium-ion cell, coated aluminum and copper foils are used. Anode and cathode foils are uncoated on at least one edge and protrude out of the electrode foil arrangement in the manner of a flag and are connected to one another to form a current-carrying lug, current-carrying lugs of the same polarity being electrically conducting to one pole 4.2 are connected. In the present embodiment, each has a single cell 4 two poles 4.2 on top of it.

In the cell block 3 adjacent single cells 4 are each rotated 180 degrees around their vertical axis against each other, so that the corresponding electric poles 4.2 , ie plus and minus poles, of adjacent single cells 4 lie directly next to each other and only a relatively short way to the electrical series circuit is to bridge.

The electrical interconnection of the individual cells 4 takes place by means of a cell connector board 10 caused by overlap laser welding with the electric poles 4.2 the respective single cell 4 is connected cohesively.

The fixing elements 5 are designed here as double half shells. The front side arranged printing plates 6 be by means of clamping bracket 11 with the cell block 3 pressed. In the present embodiment, four clamping bracket 11 intended.

The fixing elements 5 and the printing plates 6 have equivalent to the first embodiment, each on a lateral outside 5.1 . 6.1 a projecting section 5.1.1 . 6.1.1 each with a recess 5.2 . 6.2 on which the inclusion of a fastener 8th for frictional fixation of the cell block 3 with the battery case bottom 2.1 serves. The projecting sections 5.1.1 . 6.1.1 However, there are no undercuts here 5.1.2 . 6.1.2 but close at the edge with the lower edge region of the fixing element 5 or the printing plate 6 from.

The fastening strip 2.1.5 is not circumferentially arranged in the present embodiment, since the printing plates 6 no further protruding sections 6.1.3 exhibit. The fastening strip 2.1.5 is in the form of two oppositely arranged fastening strips 2.1.5 on the bottom wall 2.1.1 of the battery case bottom 2.1 arranged, with the fastening strips 2.1.5 in longitudinal extent of the cell block 3 extend so that the recesses 5.2 . 6.2 when inserting the cell block 3 in the battery case bottom 2.1 to the in the fixing strips 2.1.5 arranged receiving openings 2.1.4 aligned. The projecting sections 5.1.1 . 6.1.1 are on the mounting strip 2.1.5 arranged.

In all four embodiments described above, the cell block is 3 Even with comparatively low preload forces mechanically stable in the battery case 2 fixable, since this is made of a stable material with a correspondingly high strength.

Alternatively to the described embodiments, in which each fixing element 5 with the battery case bottom 2.1 is positively and / or positively and / or materially connected, it is also possible that only individual fixing elements 5 with the battery case bottom 2.1 non-positively and / or positively and / or materially connected.

Furthermore, it is also possible that a battery 1 from a battery case 2 and several cell blocks 3 consists, by means of the previously described embodiments in the battery case 2 can be fixed.

LIST OF REFERENCE NUMBERS

1

battery

2

battery case

2.1

Battery case back

2.1.1

bottom wall

2.1.2

Side wall

2.1.3

flange

2.1.4

receiving opening

2.1.5

mounting strip

2.1.6

Female connector

2.1.6.1

groove

2.1.7

second groove-shaped recess

2.2

Battery cover

2.2.1

bottom wall

2.2.2

Side wall

2.2.3

flange

3

cell block

4

single cell

4.1

seal

4.2

electric pole

5

fixing

5.1

lateral outside

5.1.1

protruding section

5.1.2

undercut

5.1.3

first groove-shaped recess

5.2

recess

6

printing plate

6.1

lateral outside

6.1.1

protruding section

6.1.2

undercut

6.1.3

another prominent section

6.1.4

first groove-shaped recess

6.2

recess

7

strap

8th

fastener

9

casting mold

10

Cell connector board

11

tensioning bow

Claims (10)

Battery ( 1 ) with a battery case ( 2 ) and at least one in the battery case ( 2 ) arranged cell block ( 3 ), which comprises a number of individual cells connected electrically in series and / or in parallel ( 4 ), which by means of mechanical fixing elements ( 5 . 6 ) within the cell block ( 3 ) are fixed, characterized in that in each case one at a front end of the cell block ( 3 ) arranged fixing element ( 6 ) and at least one interposed fixing element ( 5 ) with at least one battery housing part ( 2.1 . 2.2 ) are positively and / or positively and / or materially connected. Battery ( 1 ) according to claim 1, characterized in that on the at least one battery housing part ( 2.1 . 2.2 ) a fastening strip ( 2.1.5 ) is arranged. Battery ( 1 ) according to claim 1 or 2, characterized in that the at least one fixing element ( 5 . 6 ) on a lateral outside ( 5.1 . 6.1 ) at least one axially projecting portion ( 5.1.1 . 6.1.1 ), which has an undercut ( 5.1.2 . 6.1.2 ). Battery ( 1 ) according to claim 3, characterized in that the fastening strip ( 2.1.5 ) in the undercut ( 5.1.2 . 6.1.2 ) is engageable. Battery ( 1 ) according to claim 3 or 4, characterized in that the at least one outwardly projecting portion ( 5.1.1 . 6.1.1 ) a recess ( 5.2 . 6.2 ) for receiving a fastener ( 8th ), wherein the recess ( 5.1.1 . 6.1.1 ) to one in the mounting strip ( 2.1.5 ) receiving opening ( 2.1.4 ) corresponds. Battery ( 1 ) according to one of claims 1 to 4, characterized in that on the at least one battery housing part ( 2.1 . 2.2 ) a spring strip ( 2.1.6 ), in which the projecting portions ( 5.1.1 . 6.1.1 ) are latched. Battery ( 1 ) according to claim 1 or 2, characterized in that the at least one fixing element ( 5 . 6 ) At least a first groove-shaped Recess ( 5.1.3 . 6.1.4 ), which with one on the mounting strip ( 2.1.5 ) arranged corresponding second groove-shaped recess ( 2.1.7 ) a casting mold ( 9 ). Battery ( 1 ) according to claim 7, characterized in that in the casting mold ( 9 ) a potting compound is fillable. Battery ( 1 ) according to claim 1 or 2, characterized in that the at least one fixing element ( 5 ) with the at least one battery housing part ( 2.1 . 2.2 ) is glued. Battery ( 1 ) according to one of the preceding claims, characterized in that in each case one on the cell block ( 3 ) frontally arranged fixing element ( 5 . 6 ) as a printing plate ( 6 ), which at its front side, an adjacent fixing element ( 5 ) facing away from at least one further axially projecting portion ( 6.1.3 ), which with a recess ( 6.2 ) for receiving a fastener ( 8th ) is provided.

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