BATTERY MODULE COMPRISING A PLURALITY OF BATTERY CELLS AND METHOD FOR PRODUCING SUCH A BATTERY MODULE

Abstract

A battery module comprising a plurality of battery cells (2), which are each connected electrically conductively in series and/or in parallel with one another, and comprising a switching device (3), which has a first terminal (31) and a second terminal (32), wherein a first electrically conductive connecting element (41) connects the first terminal (31) of the switching device (3) electrically conductively to a first terminal (51) of a fuse element (5), and a second terminal (52) of the fuse element (5) is electrically conductively connected to a voltage tap (61) of a terminally arranged battery cell (2, 21), and a second electrically conductive connecting element (42) connects the second terminal (32) of the switching device (3) electrically conductively to a voltage tap (62) of the battery module (1).

Claims

1. A battery module comprising a plurality of battery cells (2) which are connected electrically conductively in series and/or in parallel with one another, and a switching device (3) which has a first terminal (31) and a second terminal (32), wherein a first electrically conductive connecting element (41) connects the first terminal (31) of the switching device (3) electrically conductively to a first terminal (51) of a fuse element (5), a second terminal (52) of the fuse element (5) is electrically conductively connected to a voltage tap (61) of a terminally arranged battery cell (2, 21), and a second electrically conductive connecting element (42) connects the second terminal (32) of the switching device (3) electrically conductively to a voltage tap (62) of the battery module (1).

2. The battery module according to claim 1, characterized in that the first connecting element (41) and/or the second connecting element (42) is/are accommodated in thermally conductive fashion in a receptacle (7, 71, 72) of the housing (10) of the battery module (1).

3. The battery module according to claim 2. characterized in that a thermally conductive compensation material (8) is accommodated in the receptacle (7).

4. The battery module according to claim 2, wherein the receptacle (7) is formed on a side face (91) of the housing (10) of the battery module (1) or the receptacle (7) is formed on a base (92) of the housing (10) of the battery module (1).

5. The battery module according to claim 1, characterized in that the first connecting element (41) and the second connecting element (42) are formed from a material selected from copper or aluminum or ceramic.

6. The battery module according to claim 1, characterized in that the housing (10) of the battery module (1) comprises a tempering element.

7. The battery module according to claim 6, characterized in that the receptacle (7) is arranged directly adjacent to the tempering element.

8. The battery module according to claim 1, wherein the battery cells (2) are lithium-ion battery cells (20).

9. A method for producing a battery module comprising a plurality of battery cells (2) which are connected electrically conductively in series and/or in parallel with one another, wherein a first electrically conductive connecting element (41) is electrically conductively connected to a first terminal (31) of a switching device (3) and a first terminal (51) of a fuse element (5), wherein a second terminal (52) of the fuse element (5) is electrically conductively connected to a voltage tap (61) of a terminally arranged battery cell (2, 21), and wherein a second electrically conductive connecting element (42) is electrically conductively connected to a second terminal (32) of the switching device (3) and a voltage tap (62) of the battery module (1).

10. A method for producing a battery module according to claim 1, the battery module comprising a plurality of lithium-ion battery cells (20) which are each connected electrically conductively in series and/or in parallel with one another, wherein a first electrically conductive connecting element (41) is electrically conductively connected to a first terminal (31) of a switching device (3) and a first terminal (51) of a fuse element (5), wherein a second terminal (52) of the fuse element (5) is electrically conductively connected to a voltage tap (61) of a terminally arranged battery cell (2, 21), and wherein a second electrically conductive connecting element (42) is electrically conductively connected to a second terminal (32) of the switching device (3) and a voltage tap (62) of the battery module (1).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Exemplary embodiments of the invention are illustrated in the drawings and will be explained in more detail in the following description.

[0030] In the drawings:

[0031] FIG. 1 shows a detail of a first embodiment according to the invention of a battery module in a perspective view,

[0032] FIG. 2 shows a detail of a second embodiment according to the invention of a battery module in a perspective view, and

[0033] FIG. 3 shows a plan view of an embodiment according to the invention of a battery module.

DETAILED DESCRIPTION

[0034] FIG. 1 shows a detail of a first embodiment according to the invention of a battery module 1 in a perspective view, and FIG. 2 shows a detail of a second embodiment according to the invention of a battery module 1 in a perspective view.

[0035] FIGS. 1 and 2 will be described together below.

[0036] The battery module 1 comprises a plurality of battery cells 2, of which one battery cell 2 is shown by way of example in FIG. 2. The battery cells 2 are in this case in particular in the form of lithium-ion battery cells 20. In addition, the battery cells 2 are in the form of prismatic battery cells 200. The battery cell 2 shown in FIG. 1 is in this case in particular a terminally arranged battery cell 21.

[0037] In this case, the battery cells 2 are each connected electrically conductively in series and/or in parallel with one another.

[0038] Furthermore, the battery module 1 comprises a switching device 3. The switching device 3 has a first terminal 31 and a second terminal 32.

[0039] In addition, the battery module 1 comprises a fuse element 5. The fuse element 5 has a first terminal 51 and a second terminal 52.

[0040] In addition, the battery module 1 comprises a first connecting element 41 and a second connecting element 42. The first connecting element 41 and the second connecting element 42 are in this case each designed to be electrically conductive. The first connecting element 41 and the second connecting element 42 are in this case formed from, for example, copper or aluminum or a ceramic.

[0041] The first connecting element 41 connects the first terminal 31 of the switching device 3 electrically conductively to the first terminal 51 of the fuse element 5. The second terminal 52 of the fuse element 5 is electrically conductively connected to a voltage tap 61 of the terminally arranged battery cell 21.

[0042] The second connecting element 42 connects the second terminal 32 of the switching device 3 electrically conductively to a voltage tap 62 of the battery module 1, which can be seen from FIG. 3.

[0043] Furthermore, a housing 10 of the battery module 1 comprises receptacles 7. In particular, the battery module 1 has a first receptacle 71 and a second receptacle 72. In this case, the first connecting element 41 is accommodated in thermally conductive fashion in the first receptacle 71. Furthermore, the second connecting element 42 is accommodated in thermally conductive fashion in the second receptacle 72.

[0044] Furthermore, it can be seen that, in addition, a thermally conductive compensation material 8 is arranged in a receptacle 7.

[0045] In this case, the receptacle 7 is formed on a base 92 of the housing 10 of the battery module 1. The receptacle 7 could also be formed on a side face 91 of the housing 10 of the battery module 1.

[0046] FIG. 3 shows a plan view of an embodiment according to the invention of a battery module 1.

[0047] In this case, first the switching device 3 having the first terminal 31 and the second terminal 32 can be seen. In addition, the first electrically conductive connecting element 41 and the second electrically conductive connecting element 42 can be seen. Furthermore, the fuse element 5 having the first terminal 51 and the second terminal 52 can be seen.

[0048] At this juncture, it will once again be mentioned that the first terminal 31 of the switching device 3 is electrically conductively connected to the first electrically conductive connecting element 41, and that the first terminal 51 of the fuse element 5 is electrically conductively connected to the first electrically conductive connecting element 41. As a result, the first electrically conductive connecting element 51 connects the first terminal 31 of the switching device 3 and the first terminal 51 of the fuse element 5 electrically conductively to one another.

[0049] Furthermore, it will once again be mentioned at this juncture that the second terminal 52 of the fuse element 5 is electrically conductively connected to a voltage tap 61 of a terminally arranged battery cell 21 electrically conductively. As a result, the fuse element 5 is therefore arranged electrically between the terminally arranged battery cell 21 and the switching device 3.

[0050] In addition, at this juncture it will once again be mentioned that the second terminal 32 of the switching device 3 is electrically conductively connected to the second electrically conductive connecting element 42, and that the voltage tap 62 of the battery module 1 is electrically conductively connected to the second electrically conductive connecting element 42.

[0051] As a result, the second electrically conductive connecting element 51 connects the second terminal 32 of the switching device 3 and the voltage tap 62 of the battery module 1 electrically conductively to one another.

[0052] Furthermore, the first receptacle 71 and the second receptacle 72 can also be seen, in which the first electrically conductive connecting element 41 and the second electrically conductive connecting element 42, respectively, are accommodated. In addition, in this case the thermally conductive compensation material 8 accommodated in each case in said receptacles can be seen.