INTERCONNECT DEVICE FOR BATTERY CELL ASSEMBLIES

• US 20100105258A1
• Filed: 10/23/2008
• Published: 04/29/2010
• Est. Priority Date: 10/23/2008
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Koetting, William, Isayev, Igor, Tom, Kwok, Oswandel, Kenneth J.
• Granted Patent: US 7,762,848 B2
• Time in Patent Office: Days
• US Class Current: 439/883
• CPC Class Codes: H01M 10/482 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: H01M 50/503 characterised by the shape of the interconnectors
• CPC Class Codes: H01M 50/51 Connection only in series
• CPC Class Codes: H01M 50/522 Inorganic material
• CPC Class Codes: H01M 50/526 having a layered structure
• CPC Class Codes: H01M 50/55 on the same side of the cell
• CPC Class Codes: H01M 50/557 Plate-shaped terminals
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

An interconnect device for battery cell assemblies is provided. The interconnect device couples a first set of electrodes at a first polarity in series with a second set of electrodes at a second polarity in a battery module.

Claims

1. An interconnect device for battery cell assemblies, comprising:

a first electrical contact member having first and second contact portions, a first extension portion, and a first intermediate portion, the first extension portion being coupled between the first contact portion and the first intermediate portion, the first intermediate portion being coupled between the first extension portion and the second contact portion, the first contact portion being substantially parallel to the second contact portion, the first extension portion being substantially perpendicular the first contact portion, such that the first contact portion is configured to contact a first electrode of a first battery cell assembly having a first polarity and the second contact portion is configured to contact a second electrode of a second battery cell assembly having a second polarity; and

a second electrical contact member disposed on the first electrical contact member, the second electrical contact member having third and fourth contact portions, second and third extension portions, and a second intermediate portion, the second extension portion being coupled between the third contact portion and the second intermediate portion, the third extension portion being coupled between the second intermediate portion and the fourth contact portion, the third contact portion being substantially parallel to the fourth contact portion, and the second extension portion being substantially perpendicular the third contact portion, such that the third contact portion is configured to contact a third electrode of a third battery cell assembly having the first polarity and the fourth contact portion is configured to contact a fourth electrode of a fourth battery cell assembly having the second polarity.

2. The interconnect device of claim 1, wherein a first longitudinal length of the first electrical contact member is substantially equal to a second longitudinal length of the second electrical contact member.

3. The interconnect device of claim 1, wherein a first electrical resistance of the first electrical contact member is substantially equal to a second electrical resistance of the second electrical contact member.

4. The interconnect device of claim 1, wherein the first intermediate portion and the second intermediate portion are disposed adjacent to one another and substantially parallel to one another.

5. The interconnect device of claim 1, wherein the first and third contact portions are disposed substantially parallel to one another, and the second and fourth contact portions are disposed substantially parallel to one another.

6. The interconnect device of claim 5, wherein the first and second extension portions are disposed adjacent to one another and substantially parallel to one another.

7. The interconnect device of claim 1, further comprising a third electrical contact member disposed on the second electrical contact member, the third electrical contact member having fifth and sixth contact portions, a fourth extension portion, and a third intermediate portion, the third intermediate portion being coupled between the fifth contact portion and the fourth extension portion, the fourth extension portion being further coupled between the third intermediate portion and the sixth contact portion, the fifth contact portion being substantially parallel to the sixth contact portion, the fourth extension portion being substantially perpendicular the sixth contact portion, such that the fifth contact portion is configured to contact a fifth electrode of a fifth battery cell assembly having the first polarity and the sixth contact portion is configured to contact a sixth electrode of a sixth battery cell assembly having the second polarity.

8. The interconnect device of claim 7, wherein the third intermediate portion and the second intermediate portion are disposed adjacent to one another and substantially parallel to one another.

9. The interconnect device of claim 7, wherein the fifth and third contact portions are disposed substantially parallel to one another, and the sixth and fourth contact portions are disposed substantially parallel to one another.

10. The interconnect device of claim 7, wherein the third and fourth extension portions are disposed adjacent to one another and substantially parallel to one another.

11. The interconnect device of claim 1, wherein the first and second electrical contact members are constructed from nickel-plated copper.