Device and method for bracing a battery module, and also battery system and vehicle

Patent metadata

Field	Value
Publication number	US-10622600-B2
Application number	US-201615076874-A
Country	US
Kind code	B2
Filing date	Mar 22, 2016
Priority date	Mar 23, 2015
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A device ( 200 ) for bracing a battery module ( 100 ) which comprises a multiplicity of battery cells ( 101, . . . 10 n ), characterized by: a first clamping plate ( 201 ) for the positioning of the battery cells ( 101, . . . 10 n ), a cooler ( 300 ) which is between the first clamping plate ( 201 ) and the battery cells ( 101, . . . 10 n ), and a brace ( 205, 206 ) which is configured so as to brace the first clamping plate ( 201, 202 ) and the battery cells ( 101, . . . 10 n ) against one another.

First claim

What is claimed is:

1. A device ( 200 ) for bracing a battery module ( 100 ) having a multiplicity of battery cells ( 101 , . . . 10 n ) arranged in a stack, the device comprising
a first clamping plate ( 201 ) configured to position the battery cells ( 101 , . . . 10 n ), wherein the first clamping plate ( 201 ) has an L-shaped profile,
a cooler ( 300 ) which is between the first clamping plate ( 201 ) and the battery cells ( 101 , . . . 10 n ),
first and second contact plates ( 203 , 204 ) of electrically conductive form positioned at respective first and second ends of the first clamping plate ( 201 ) to cooperate with the first clamping plate ( 201 ) in defining a sealed housing for the battery module ( 100 ), wherein the first and second contact plates ( 203 , 204 ) are positioned at respective ends of the battery cell stack such that the first contact plate ( 203 ) makes electrical contact with only one battery cell of the multiplicity of battery cells ( 101 , . . . 10 n ) at a first end of the battery cell stack and the second contact plate ( 204 ) makes electrical contact with only one battery cell of the multiplicity of battery cells ( 101 , . . . 10 n ) at a second end of the battery cell stack, and
a bracing means ( 205 , 206 ) which is configured to brace the first clamping plate ( 201 , 202 ) and the battery cells ( 101 , . . . 10 n ) against one another, and which is also configured to brace the battery cells ( 101 . . . 10 n ) between the first and second contact plates ( 203 , 204 ).

2. The device ( 200 ) according to claim 1 , further comprising a second clamping plate ( 202 ), wherein the bracing means ( 205 , 206 ) is further configured to brace the battery cells ( 101 , . . . 10 n ) between the first clamping plate ( 201 ) and the second clamping plate ( 202 ).

3. The device ( 200 ) according to claim 2 , wherein the first clamping plate ( 201 ) and the second clamping plate ( 202 ) are configured so as to form a part of a housing of the battery module ( 100 ).

4. The device ( 200 ) according to claim 1 , wherein the cooler ( 300 ) is in the form of a hollow profile.

5. The device ( 200 ) according to claim 1 , wherein the bracing means ( 205 , 206 ) is in the form of an adhesive strip, multiple adhesive strips, a screw, multiple screws, a welded connection or multiple welded connections.

6. A battery system, comprising the battery module ( 100 ) and the device ( 200 ) according to claim 1 .

7. A vehicle, comprising the battery system according to claim 6 .

8. A method for bracing a battery module ( 100 ) having a multiplicity of battery cells ( 101 , . . . 10 n ), the method comprising
positioning the battery cells ( 101 , . . . 10 n ) with a first clamping plate ( 201 ), the first clamping plate having an L-shaped profile, and the multiplicity of battery cells ( 101 , . . . 10 n ) arranged in a stack,
providing a cooler ( 300 ) either inserted between the first clamping plate ( 201 ) and the battery cells ( 101 , . . . 10 n ) or the first clamping plate ( 201 ) comprising the cooler ( 300 ),
positioning first and second contact plates ( 203 , 204 ) of electrically conductive form at respective first and second ends of the battery cell stack and at respective first and second ends of the first clamping plate ( 201 ) to cooperate with the first clamping plate ( 201 ) in defining a sealed housing for the battery module ( 100 ), wherein each of the first and second contact plates ( 203 , 204 ) is provided in electrical contact with only one of the multiplicity of battery cells ( 101 , . . . 10 n ) located at a respective end of the battery cell stack, and
bracing the first clamping plate ( 201 ) and the battery cells ( 101 , . . . 10 n ) against one another with a bracing means ( 205 , 206 ) that also braces the battery cells ( 101 . . . 10 n ) between the first and second contact plates ( 203 , 204 ).

9. The method according to claim 8 , wherein the cooler ( 300 ) is formed by a stretch blow molding process.

10. The method according to claim 9 , wherein the cooler ( 300 ) is formed in the battery module ( 100 ).

11. The method ( 200 ) according to claim 8 , wherein the bracing means ( 205 , 206 ) is in the form of a strip, and bracing the first clamping plate ( 201 ) and the battery cells ( 101 , . . . 10 n ) against one another includes extending the bracing means ( 205 , 206 ) around the first clamping plate ( 201 ).

12. The device ( 200 ) according to claim 2 , wherein the second clamping plate ( 202 ) has an L-shaped profile such that the first clamping plate ( 201 ) and the second clamping plate ( 202 ) cooperate to form a rectangular housing for the battery module ( 100 ).

13. The device ( 200 ) according to claim 1 , wherein the bracing means ( 205 , 206 ) is in the form of a strip that extends around the first clamping plate ( 201 ).

Assignees

• Bosch Gmbh Robert

Inventors

• Reinshagen Holger
• Austen Michael
• Gerlach Martin
• Poller Silvan
• Schubert Gerhard

Classifications

• H01M10/613

  Cooling or keeping cold · CPC title

• H01M10/647

  Prismatic or flat cells, e.g. pouch cells · CPC title

• H01M10/6556 Primary

  Solid parts with flow channel passages or pipes for heat exchange (closed pipes H01M10/6552) · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M10/625 Primary

  Vehicles · CPC title