Battery module and method for manufacturing the battery module

• US 9,178,192 B2
• Filed: 05/13/2011
• Issued: 11/03/2015
• Est. Priority Date: 05/13/2011
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Payne, Josh
• Primary Examiner(s): Gilliam, Barbara
• Assistant Examiner(s): MARTIN, ANGELA J
• Application Number:
  US13/106,966
• Publication Number:
  US 20120288745A1
• Time in Patent Office: 1,635 Days
• US Class Current: 1/1
• CPC Class Codes: H01M 10/0413 Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
• CPC Class Codes: H01M 50/178 for pouch or flexible bag cells
• CPC Class Codes: H01M 50/503 characterised by the shape of the interconnectors
• CPC Class Codes: H01M 50/516 by welding, soldering or brazing
• 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 battery module and a related method are provided. The module includes battery cells having electrical terminals extending from battery portions. The module further includes an interconnect board having apertures for receiving the electrical terminals therethrough, and an elastomeric layer having apertures extending therethrough. The elastomeric layer is disposed proximate to the interconnect board such that the electrical terminals extend through the apertures of the interconnect board and further extend through the apertures of the elastomeric layer. The module further includes a potting compound disposed on the elastomeric layer such that the layer prevents the potting compound from contacting the battery portions.

Claims

1. A battery module, comprising:

a plurality of battery cells having electrical terminals extending from battery portions;

an interconnect board having a circuit board with plurality of apertures extending therethrough for receiving the electrical terminals therethrough, the interconnect board further having a plurality of electrically conductive interconnect members coupled to and extending from the circuit board, at least one electrically conductive interconnect member of the plurality of electrically conductive interconnect members being coupled to an electrical terminal of the electrical terminals;

an elastomeric layer having a plurality of apertures extending therethrough, the elastomeric layer disposed proximate to the circuit board such that the electrical terminals extend through the plurality of apertures of the circuit board and further extend through the plurality of apertures of the elastomeric layer; and

a potting compound disposed on the elastomeric layer such that the elastomeric layer prevents the potting compound from contacting the battery portions.

2. The battery module of claim 1, further comprising:

an interconnect carrier having a plurality of apertures extending therethrough, the interconnect carrier disposed between the plurality of battery cells and the circuit board such that the electrical terminals extend through the plurality of apertures of the interconnect carrier, and further extend through the plurality of apertures of the circuit board, and further extend through the plurality of apertures of the elastomeric layer.

3. The battery module of claim 2, wherein the circuit board is a substantially rectangular-shaped circuit board that is sized to be entirely received within a region defined by the base portion and peripheral side walls of the interconnect carrier.

4. The battery module of claim 1, wherein the interconnect carrier includes a base portion and peripheral side walls coupled to the base portion that hold the potting compound therein.

5. The battery module of claim 1, wherein the circuit board further includes an electrical connector extending therefrom, and the elastomeric layer has an additional aperture configured to receive the electrical connector therethrough.

6. The battery module of claim 1, wherein the elastomeric layer is constructed of a rubber compound.

7. A method of manufacturing a battery module, comprising:

disposing a plurality of battery cells in a plurality of frame members, the plurality of battery cells having electrical terminals extending from battery portions, the electrical terminals extending through apertures in the frame members;

providing an interconnect board having a circuit board with plurality of apertures extending therethrough for receiving the electrical terminals therethrough, the interconnect board further having a plurality of electrically conductive interconnect members being coupled to and extending from the circuit board, the plurality of electrically conductive interconnect members being coupled to the electrical terminals;

disposing an elastomeric layer proximate to the circuit board such that the electrical terminals extending through the plurality of apertures of the circuit board further extend through a plurality of apertures of the elastomeric layer; and

disposing a potting compound on the elastomeric layer and the electrical terminals such that the elastomeric layer prevents the potting compound from contacting the battery portions.

8. The method of claim 7, further comprising:

disposing an interconnect carrier on the circuit board such that the interconnect carrier is disposed between the plurality of battery cells and the circuit board wherein the electrical terminals extend through the plurality of apertures of the interconnect carrier, and further extend through the plurality of apertures of the circuit board, and further extend through the plurality of apertures of the elastomeric layer.

9. The method of claim 7, wherein disposing the potting compound on the elastomeric layer and the electrical terminals includes disposing the potting compound within a region defined by peripheral walls of the interconnect carrier.

10. The method of claim 7, wherein the elastomeric layer is constructed of a rubber compound.

11. A battery module, comprising:

a plurality of battery cells having electrical terminals extending from battery portions;

an interconnect carrier disposed on the plurality of battery cells, the interconnect carrier having a base portion and peripheral side walls coupled to and extending from a first side of the base portion, the base portion having a plurality of apertures extending therethrough;

an interconnect board disposed on the base portion of the interconnect carrier, the interconnect board having a plurality of apertures extending therethrough, the interconnect board being sized and shaped to be entirely received within a region defined by the base portion and peripheral side walls of the interconnect carrier;

an elastomeric layer disposed on the interconnect board, the elastomeric layer having a plurality of apertures extending therethrough, such that the electrical terminals extend through the plurality of apertures of the interconnect carrier, and further extend through the plurality of apertures of the interconnect board, and further extend through the plurality of apertures of the elastomeric layer; and

a potting compound disposed on the elastomeric layer, the elastomeric layer configured to prevent the potting compound from contacting the battery portions.

12. The battery module of claim 11, wherein the base portion and the peripheral side walls of the interconnect carrier hold the potting compound therein.

13. The battery module of claim 11, further comprising a plurality of interconnect members disposed on the interconnect board, the plurality of interconnect members coupled to the plurality of electrical terminals.