Subunit of a battery module, battery module comprising such a subunit and method for producing same

Patent metadata

Field	Value
Publication number	US-2018309154-A1
Application number	US-201815955363-A
Country	US
Kind code	A1
Filing date	Apr 17, 2018
Priority date	Apr 19, 2017
Publication date	Oct 25, 2018
Grant date	—

Abstract

A subunit of a battery module (2), comprising a first receiving element (3) and a second receiving element (4) which are connected to each other, forming at least one first receiving space (7) and at least one second receiving space (8), wherein the first receiving space (7) and the second receiving space (8) are separated from each other, and at least one battery cell stack (5) or at least one battery cell (6) is arranged in the first receiving space (7), and the second receiving space (8) is configured for receiving a temperature-control fluid (9).

First claim

1 . A subunit of a battery module ( 2 ), comprising
a first receiving element ( 3 ) and a second receiving element ( 4 ) which are connected to each other, forming at least one first receiving space ( 7 ) and at least one second receiving space ( 8 ), wherein the first receiving space ( 7 ) and the second receiving space ( 8 ) are separated from each other, and at least one battery cell stack ( 5 ) or at least one battery cell ( 6 ) is arranged in the first receiving space ( 7 ), and the second receiving space ( 8 ) is configured for receiving a temperature-control fluid ( 9 ).

2 . The subunit of a battery module according to the preceding claim 1 , characterized in that a compensating element ( 10 ) configured to be elastically and/or plastically deformable is furthermore arranged in the first receiving space ( 7 ).

3 . The subunit of a battery module according to claim 1 , characterized in that the first receiving element ( 3 ) and the second receiving element ( 4 ) are connected to each other in an integrally bonded manner.

4 . The subunit of a battery module according to claim 1 , characterized in that the first receiving space ( 7 ) furthermore has an insulating element ( 11 ) which is configured to be electrically insulating and which at least partially surrounds the at least one battery cell stack ( 5 ) or the at least one battery cell ( 6 ).

5 . The subunit of a battery module according to claim 1 , further comprising a second first receiving space ( 7 ), in which at least one battery cell stack ( 5 ) or at least one battery cell ( 6 ) is arranged, and a second second receiving space ( 8 ) configured for receiving a temperature-control fluid ( 9 ).

6 . The subunit of a battery module according to the preceding claim 5 , characterized in that the first receiving spaces ( 7 ) and the second receiving spaces ( 8 ) are arranged in an alternating manner in a longitudinal direction ( 12 ) of the subunit ( 1 ).

7 . A module comprising first and second subunits ( 16 , 17 ) according to claim 1 .

8 . The battery module according to claim 7 , wherein a first first section ( 161 ) of the first receiving element ( 31 ) is arranged directly adjacent to a second second section ( 172 ) of the second receiving element ( 42 ), wherein the first first section bounds a first receiving space ( 71 ) of the first subunit ( 16 ) and the second second section bounds a second receiving space ( 82 ) of the second subunit ( 17 ).

9 . The battery module according to claim 8 , wherein a second first section ( 171 ) of the second receiving element ( 42 ) is arranged directly adjacent to a first second section ( 171 ) of the first receiving element ( 31 ), wherein the second first section bounds a first receiving space ( 72 ) of the second subunit ( 17 ) and the first second section bounds a second receiving space ( 81 ) of the first subunit ( 16 ).

10 . The battery module according to claim 7 , wherein a second first section ( 171 ) of the second receiving element ( 42 ) is arranged directly adjacent to a first second section ( 171 ) of the first receiving element ( 31 ), wherein the second first section bounds a first receiving space ( 72 ) of the second subunit ( 17 ) and the first second section bounds a second receiving space ( 81 ) of the first subunit ( 16 ).

11 . The battery module according to claim 8 , characterized in that a compensating element ( 18 ) which is configured to be elastically and/or plastically deformable is arranged between the first first section ( 161 ) and the second second section ( 172 ).

12 . The battery module according to claim 10 , characterized in that a compensating element ( 18 ) which is configured to be elastically and/or plastically deformable is arranged between the second first section ( 171 ) and the first second section ( 162 ).

13 . The battery module according to claim 7 , characterized in that the battery module ( 2 ) is accommodated in a housing ( 19 ) which comprises a first connection ( 20 ) configured for admitting temperature-control fluid ( 9 ) into at least one second receiving space ( 8 ), and which comprises a second connection ( 21 ) configured for letting temperature-control fluid ( 9 ) out of at least one second receiving space ( 8 ).

14 . The battery module according to claim 7 , characterized in that the battery module ( 2 ) is accommodated in a housing ( 19 ), wherein a control and/or regulating device ( 23 ) is arranged between a second receiving space ( 83 ) of a subunit ( 113 ) of the battery module ( 2 ) and a housing wall ( 25 ) of the battery module ( 2 ).

15 . The battery module according to claim 14 , characterized in that the battery module ( 2 ) is accommodated in a housing ( 19 ), wherein an electric connecting line ( 24 ) is arranged between a second receiving space ( 83 ) of a subunit ( 113 ) of the battery module ( 2 ) and a housing wall ( 25 ) of the battery module ( 2 ).

16 . The battery module according to claim 7 , characterized in that the battery module ( 2 ) is accommodated in a housing ( 19 ), wherein an electric connecting line ( 24 ) is arranged between a second receiving space ( 83 ) of a subunit ( 113 ) of the battery module ( 2 ) and a housing wall ( 25 ) of the battery module ( 2 ).

17 . The subunit of a battery module according to claim 1 , characterized in that the first receiving element ( 3 ) and the second receiving element ( 4 ) are connected to each other in a welded, manner.

18 . A method for producing a subunit ( 1 ) of a battery module ( 2 ), wherein, in a first method step, a first receiving element ( 3 ) and a second receiving element ( 4 ) are provided, and, in a second method step, at least one battery cell stack ( 5 ) or at least one battery cell ( 6 ) is arranged between the first receiving element ( 3 ) and the second receiving element ( 4 ), and, in a third method step, the first receiving element ( 3 ) and the second receiving element ( 4 ) are connected to each other in such a manner that a first receiving space ( 7 ) is formed, in which the at least one battery cell stack ( 5 ) or the at least one battery cell ( 6 ) is accommodated, and a second receiving space ( 8 ) is formed, which is configured for receiving a temperature-control fluid ( 9 ), wherein the first receiving space ( 7 ) and the second receiving space ( 8 ) are separated from each other.

Assignees

• Bosch Gmbh Robert

Inventors

• Wolpert Andreas

Classifications

• H01M50/242

  adapted for protecting batteries against vibrations, collision impact or swelling · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• H01M50/244

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title

• H01M10/613

  Cooling or keeping cold · CPC title

• H01M10/0422 Primary

  Cells or battery with cylindrical casing · CPC title