Battery Module Having Battery Cell Assemblies With Alignment-Coupling Features

• US 20090325059A1
• Filed: 06/30/2008
• Published: 12/31/2009
• Est. Priority Date: 06/30/2008
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Niedzwiecki, Mark, Isayev, Igor, Yang, Heekook
• Granted Patent: US 7,883,793 B2
• Time in Patent Office: Days
• US Class Current: 429/152
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/647 Prismatic or flat cells, e.g. pouch cells
• CPC Class Codes: H01M 10/6557 arranged between the cells
• CPC Class Codes: H01M 50/211 adapted for pouch cells
• CPC Class Codes: H01M 50/291 characterised by their shape
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery module having battery cell assemblies with alignment-coupling features is provided. The battery module includes a first battery cell assembly having at least first, second, third and fourth alignment-coupling features thereon. The battery module further includes a second battery cell assembly having at least fifth, sixth, seventh, and eighth alignment-coupling features thereon. The fifth, sixth, seventh, and eighth alignment-coupling features of the second battery cell assembly are configured to engage the first, second, third and fourth alignment-coupling features, respectively, of the first battery cell assembly to couple the second battery cell assembly to the first battery cell assembly and to align the second battery cell assembly relative to the first battery cell assembly.

Claims

1. A battery module, comprising:

a first battery cell assembly having at least first, second, third and fourth alignment-coupling features thereon; and

a second battery cell assembly having at least fifth, sixth, seventh, and eighth alignment-coupling features thereon, the fifth, sixth, seventh, and eighth alignment-coupling features of the second battery cell assembly configured to engage the first, second, third and fourth alignment-coupling features, respectively, of the first battery cell assembly to couple the second battery cell assembly to the first battery cell assembly and to align the second battery cell assembly relative to the first battery cell assembly.

2. The battery module of claim 1, wherein the first, second, third and fourth alignment-coupling features of the first battery cell assembly have different shapes from one another.

3. The battery module of claim 1, wherein the first battery cell assembly comprises:

a first rectangular ring-shaped frame member having a first side and a second side, the second side of the first rectangular ring-shaped frame member having at least ninth, tenth, eleventh, and twelfth alignment-coupling features thereon;

a first battery cell having a first side and a second side, the second side of the first battery cell contacting at least a portion of the second side of the first rectangular ring-shaped frame member;

a second battery cell having a first side and a second side, the first side of the second battery cell contacting the second side of the first battery cell; and

a second rectangular ring-shaped frame member having a first side and a second side, the first side of the second rectangular ring-shaped frame member having at least thirteenth, fourteenth, fifteenth and sixteenth alignment-coupling features thereon, the thirteenth, fourteenth, fifteenth and sixteenth alignment-coupling features of the second rectangular ring-shaped frame member configured to engage the ninth, tenth, eleventh, and twelfth alignment-coupling features, respectively, of the first rectangular ring-shaped frame member to couple the second rectangular ring-shaped frame member to the first rectangular ring-shaped frame member to align the second rectangular ring-shaped frame member relative to first rectangular ring-shaped frame member.

4. The battery cell assembly of claim 3, wherein the ninth, tenth, eleventh, and twelfth alignment-coupling features on the second side of the first rectangular ring-shaped frame member have different shapes from one another.

5. The battery cell assembly of claim 3, wherein the first side of the first rectangular ring-shaped frame member has the first, second, third and fourth alignment-coupling features thereon, the first, second, third and fourth alignment-coupling features having different shapes as compared to the ninth, tenth, eleventh, and twelfth alignment-coupling features on the second side of the first rectangular ring-shaped frame.

6. The battery cell assembly of claim 3, wherein the second side of the second rectangular ring-shaped frame member has seventeenth, eighteenth, nineteenth, and twentieth alignment-coupling features thereon.

7. The battery cell assembly of claim 6, further comprising:

a heat exchanger having a first side and a second side, the first side of the heat exchanger contacting both the second side of the second battery cell and the second side of the second rectangular ring-shaped frame member;

a third battery cell having a first side and a second side, the first side of the third battery cell contacting the second side of the heat exchanger, the heat exchanger being configured to remove heat energy from the first, second, and third battery cells to maintain the first, second, and third battery cells at substantially a desired temperature; and

a third rectangular ring-shaped frame member having a first side and a second side, the first side of the third rectangular ring-shaped frame member having at least twenty-first, twenty-second, twenty-third, and twenty-fourth alignment-coupling features thereon, the twenty-first, twenty-second, twenty-third, and twenty-fourth alignment-coupling features of the third rectangular ring-shaped frame member configured to engage the seventeenth, eighteenth, nineteenth, and twentieth alignment-coupling features, respectively, of the second rectangular ring-shaped frame member to couple the third rectangular ring-shaped frame member to the second rectangular ring-shaped frame member and to align the third rectangular ring-shaped frame member relative to second rectangular ring-shaped frame member.