Battery module

Patent metadata

Field	Value
Publication number	US-12199296-B2
Application number	US-202217722636-A
Country	US
Kind code	B2
Filing date	Apr 18, 2022
Priority date	Apr 19, 2021
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

A battery module having a plurality of battery cells and a first housing element ( 21 ) and a second housing element ( 22 ) is disclosed. The housing elements together form an interior space ( 9 ) in which the plurality of battery cells is accommodated, and are each formed from a metal material, the first housing element ( 21 ) having a projection ( 31 ) and the second housing element ( 22 ) having an indentation ( 32 ), the projection ( 31 ) engaging in the indentation ( 32 ). On a side facing away from the interior space, the first housing element ( 21 ) has a first weld region ( 41 ) and the second housing element ( 22 ) has a second weld region ( 42 ), the first weld region ( 41 ) and the second weld region ( 42 ) being connected to one another by welding.

First claim

The invention claimed is:

1. A battery module having a plurality of battery cells and a first housing element ( 21 ) and a second housing element ( 22 ), which together form an interior space ( 9 ) in which the plurality of battery cells is accommodated, and which are each formed from a metal material,
the first housing element ( 21 ) having a projection ( 31 ) and
the second housing element ( 22 ) having an indentation ( 32 ),
the projection ( 31 ) engaging in the indentation ( 32 ),
wherein
on a side facing away from the interior space,
the first housing element ( 21 ) has a first weld region ( 41 ), and
the second housing element ( 22 ) has a second weld region ( 42 ),
the first weld region ( 41 ) and the second weld region ( 42 ) being connected to one another in an integrally bonded manner by welding,
wherein the first weld region ( 41 ) and/or the second weld region ( 42 ) have recesses ( 81 , 82 ) so that a plurality of weld seams ( 72 ) is formed.

2. The battery module according to claim 1 , wherein the projection ( 31 ) and the indentation ( 32 ) are formed as a tongue-and-groove system.

3. The battery module according to claim 1 , wherein the first housing element ( 21 ) and/or the second housing element ( 22 ) are formed from aluminum.

4. The battery module according to claim 3 , wherein the first housing element ( 21 ) and/or the second housing element ( 22 ) are formed as a die-cast component ( 20 ).

5. The battery module according to claim 1 , wherein a sealant ( 5 ) is further disposed between the projection ( 31 ) and the indentation ( 32 ).

6. The battery module according to claim 5 , wherein the sealant ( 5 ) is formed as an adhesive ( 51 ).

7. The battery module according to claim 6 , wherein the adhesive ( 51 ) is a structurally load-bearing adhesive ( 52 ).

8. The battery module according to claim 1 , wherein the first weld region ( 41 ) is raised with respect to the first housing element ( 21 ) and/or the second weld region ( 42 ) is raised with respect to the second housing element ( 22 ).

9. The battery module according to claim 1 , wherein the plurality of weld seams ( 72 ) includes a weld seam ( 71 ) arranged circumferentially on the battery module ( 1 ).

10. The battery module according to claim 1 , wherein the plurality of weld seams ( 72 ) is arranged circumferentially on the battery module ( 1 ).

Assignees

• Bosch Gmbh Robert

Inventors

• Schmitt Markus
• Foitzik Alexander
• Boehnlein Christian
• Liebscher Lars
• Glemser Ralph
• Kohler Robert

Classifications

• H01M50/224 Primary

  Metals · CPC title

• H01M50/262

  with fastening means, e.g. locks · CPC title

• H01M50/218

  characterised by the material · CPC title

• H01M50/244

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

• H01M50/276

  Inorganic material · CPC title