Battery system and method for coupling a battery cell assembly to an electrically non-conductive base member

• US 8,974,938 B2
• Filed: 06/29/2012
• Issued: 03/10/2015
• Est. Priority Date: 08/30/2011
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Payne, Josh
• Primary Examiner(s): Cano, Milton I
• Assistant Examiner(s): ZENG, LINGWEN R
• Application Number:
  US13/537,098
• Publication Number:
  US 20130052503A1
• Time in Patent Office: 984 Days
• Field of Search: 429148-170, 429 99-100, 439/500, 439/627, 294/28
• US Class Current: 429/99
• CPC Class Codes: H01M 50/211 adapted for pouch cells
• CPC Class Codes: H01M 50/227 Organic material
• CPC Class Codes: H01M 50/50 Current conducting connections for cells or batteries
• CPC Class Codes: H01M 50/503 characterised by the shape of the interconnectors
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

A battery system is provided. The battery system includes a first battery cell assembly having first and second interconnect members. The first and second interconnect members have first and second blades, respectively. The battery system further includes an electrically non-conductive base member having first and second grooves. The battery system further includes first and second bus bar members disposed in the first and second grooves, respectively. The first bus bar member has a first aperture configured to removably receive the first blade therein. The second bus bar member has a second aperture configured to removably receive a second blade therein.

Claims

1. A battery system, comprising:

a first battery cell assembly having a bottom side and first and second interconnect members disposed on the bottom side, the first and second interconnect members having first and second blades, respectively;

an electrically non-conductive base member having a top side with first and second grooves extending from the top side into the electrically non-conductive base member, the top side of the electrically non-conductive base member having an outer periphery larger than an outer periphery of the bottom side of the first battery cell assembly, the electrically non-conductive base member further having first, second, third, and fourth walls;

the first and second walls being disposed substantially parallel to one another;

the third and fourth walls being disposed substantially parallel to one another and perpendicular to the first and second walls;

the third and fourth walls being coupled to the first and second walls such that the first, second, third, and fourth walls define a central open region;

the first wall having the first and second grooves extending therein; and

first and second bus bar members disposed in the first and second grooves, respectively, of the electrically non-conductive base member, the first bus bar member having a first aperture configured to removably receive the first blade therein, the second bus bar member having a second aperture configured to removably receive the second blade therein; and

the bottom side of the first battery cell assembly being disposed on and supported by the top side of the electrically non-conductive base member such that the first blade is removably received within the first aperture, and the second blade is removably received in the second aperture.

2. The battery system of claim 1, wherein the first battery cell assembly is configured to generate a voltage between the first and second blades such that an electrical current flows through the first battery cell assembly from the first blade to the second blade and then through the second bus bar member.

3. The battery system of claim 1, wherein the first and second bus bar members are disposed a predetermined distance apart from one another.

4. The battery system of claim 1, wherein the second bus bar member further includes a third aperture therein, the battery system further comprising:

a second battery cell assembly having third and fourth interconnect members, the third and fourth interconnect members having third and fourth blades, respectively, the third aperture configured to removably receive the third blade therein; and

a third bus bar member disposed in a third groove of the electrically non-conductive base member, the third bus bar member having a fourth aperture configured to removably receive the fourth blade therein.

5. The battery system of claim 1, wherein the electrically non-conductive base member is a rectangular ring-shaped base member defining a central open region.

6. The battery system of claim 5, wherein the first and second bus bar members are disposed along a longitudinal axis extending along one of the walls of the rectangular ring-shaped base member.

7. The battery system of claim 1, wherein the electrically non-conductive base member is constructed of plastic.

8. The battery system of claim 1, further comprising a bolt, wherein the first bus bar member further includes a body portion and an extension portion, the extension portion extending from the body portion and having an aperture extending therethrough, the bolt configured to extend through an aperture of the electrically non-conductive base member and the aperture of the body portion of the first bus bar member.

9. The battery system of claim 1, wherein the second bus bar member further includes first and second body portions, and an intermediate portion coupled to the first and second body portions, the first body portion having the second aperture therein, the second body portion having a third aperture therein.

12. The battery system of claim 1, wherein the first aperture is an elongated aperture configured to removably receive the first blade therein.

13. The battery system of claim 1, wherein the first and second bus bar members are disposed along a longitudinal axis extending along the first wall.

14. The battery system of claim 1, wherein the bottom side of the first battery cell assembly is disposed on the first, second, and third walls.

10. A method for coupling a first battery cell assembly to an electrically non-conductive base member, the first battery cell assembly having a bottom side and first and second interconnect members disposed on the bottom side, the first and second interconnect members having first and second blades, respectively, the method comprising:

providing an electrically non-conductive base member having a top side with first and second grooves extending from the top side into the electrically non-conductive member, the first and second grooves holding first and second bus bar members, respectively, therein, the first bus bar member having a first aperture, the second bus bar member having a second aperture, the top side having an outer periphery larger than an outer periphery of the bottom side of the first battery cell assembly, the electrically non-conductive base member further having first, second, third, and fourth walls;

the first and second walls being disposed substantially parallel to one another;

the third and fourth walls being disposed substantially parallel to one another and perpendicular to the first and second walls;

the third and fourth walls being coupled to the first and second walls such that the first, second, third, and fourth walls define a central open region;

the first wall having the first and second grooves extending therein;

disposing the electrically non-conductive base member on a surface; and

disposing the bottom side of the first battery cell assembly on the top side of the electrically non-conductive base member such that the top side supports the bottom side, and the first blade is removably received in the first aperture, and the second blade is removably received in the second aperture.

11. The method of claim 10, wherein the second bus bar member further includes a third aperture therein, and a third bus bar member has a fourth aperture and is disposed in a third groove of the electrically non-conductive base member, and a second battery cell assembly has third and fourth interconnect members, the third and fourth interconnect members having third and fourth blades, respectively, the method further comprising:

disposing the second battery cell assembly on the electrically non-conductive base member such that the third blade is removably received in the third aperture of the second bus bar member, and the fourth blade is removably received in the fourth aperture of the third bus bar member.

15. A battery system, comprising:

a first battery cell assembly having a bottom side and first and second interconnect members disposed on the bottom side, the first and second interconnect members having first and second blades, respectively;

an electrically non-conductive base member having first, second, third and fourth walls defining a top side;

the first and second walls being disposed substantially to parallel to one another;

the third and fourth walls being disposed substantially parallel to one another and perpendicular to the first and second walls;

the third and fourth walls being coupled to the first and second walls such that the first, second, third, and fourth walls define a central open region;

the first wall having first and second grooves extending from the top side into the first wall; and

first and second bus bar members disposed in the first and second grooves, respectively, of the first wall, the first bus bar member having a first elongated aperture, the second bus bar member having a second elongated aperture; and

the bottom side of the first battery cell assembly being disposed on and supported by the top side of the electrically non-conductive base member such that the first blade is removably received within the first elongated aperture, and the second blade is removably received in the second elongated aperture.

16. The battery system of claim 15, further comprising a bolt, wherein the first bus bar member further includes a body portion and an extension portion, the extension portion extending from the body portion and having an aperture extending therethrough, the bolt configured to extend through an aperture of the first wall of the electrically non-conductive base member and the aperture of the body portion of the first bus bar member.

17. The battery system of claim 15, wherein the top side of the electrically non-conductive base member has an outer periphery larger than an outer periphery of the bottom side of the first battery cell assembly.