Battery module and method for the production thereof

• US 9,692,030 B2
• Filed: 06/12/2013
• Issued: 06/27/2017
• Est. Priority Date: 09/15/2012
• Status: Active Grant

• Current Assignee: Audi AG (Volkswagen AG)
• Original Assignee: Audi AG (Volkswagen AG)
• Inventors: Schssler, Martin, Allmann, Christian
• Primary Examiner(s): Takeuchi, Yoshitoshi
• Application Number:
  US14/426,664
• Publication Number:
  US 20150228956A1
• Time in Patent Office: 1,476 Days
• Field of Search: None
• CPC Class Codes: H01M 10/049 Processes for forming or storing electrodes in the battery container
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H01M 50/213 adapted for cells having curved cross-section, e.g. round or elliptic H01M50/209, H01M50/216 take precedence
• CPC Class Codes: H01M 50/293 characterised by the material
• CPC Class Codes: H01M 50/503 characterised by the shape of the interconnectors
• CPC Class Codes: H01M 50/512 Connection only in parallel
• CPC Class Codes: H01M 50/522 Inorganic material
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10T 29/49108 Electric battery cell making
• CPC Class Codes: Y10T 29/4911 including sealing

Abstract

A method for producing a battery module having a plurality of individual electrochemical cells, includes the following steps: —arranging cell cans; —embedding the cell cans in a metal foam; and —inserting cell coils into the cell cans. The metal foam is used hereby as common negative pole or positive pole of the single cells.

Claims

1. A battery module, comprising:

a plurality of single electrochemical cells embedded in a metal foam,

each said cell including a cell can made of an electrically conductive material including steel, aluminum, copper, and alloys thereof, and said cell can directly enclosed by the metal foam,

wherein the metal foam is made of an aluminum alloy, and

a cell coil arranged in the cell can,

said metal foam establishing a common negative pole or positive pole of the single cells.

2. The battery module of claim 1, further comprising a cover configured to close the cell cans.

3. The battery module of claim 1, wherein the metal foam has at least one filler.

4. The battery module of claim 3, wherein the at least one filler includes hollow glass beads.

5. The battery module of claim 4, wherein the hollow glass beads are filled with a phase change material.