Battery cell assembly and method for coupling a cooling fin to first and second cooling manifolds

• US 9,444,124 B2
• Filed: 01/23/2014
• Issued: 09/13/2016
• Est. Priority Date: 01/23/2014
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Beltz, David, Yang, Heekook, Arena, Anthony, Ketkar, Satish
• Primary Examiner(s): Tran, Len
• Assistant Examiner(s): JONES, GORDON A
• Application Number:
  US14/161,806
• Publication Number:
  US 20150207187A1
• Time in Patent Office: 964 Days
• Field of Search: 285/345, 285/347, 285/351, 285/338, 165/149
• US Class Current: 1/1
• CPC Class Codes: B23P 15/26 heat exchangers or the like making heat exchangers by methods covered by other subclasses B21D53/02
• CPC Class Codes: F28F 2230/00 Sealing means
• CPC Class Codes: F28F 2275/04 by brazing brazing heat exchangers B23K1/0012
• CPC Class Codes: F28F 9/0256 Arrangements for coupling connectors with flow lines
• CPC Class Codes: F28F 9/0258 of quick acting type, e.g. with snap action
• CPC Class Codes: F28F 9/06 by dismountable joints
• CPC Class Codes: H01M 10/0472 Vertically superposed cells with vertically disposed plates
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/6556 Solid parts with flow channel passages or pipes for heat exchange closed pipes H01M10/6552
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y10T 29/49359 Cooling apparatus making, e.g., air conditioner, refrigerator

Abstract

A battery cell assembly having a cooling fin with a tube, a substantially rectangular-shaped metal plate, first and second cylindrical coupling members, and first and second O-ring gaskets is provided. The tube has an inlet tube portion and an outlet tube portion. The tube is coupled to a peripheral region of the metal plate. The first cylindrical coupling member has a first aperture extending therethrough, and first and second circumferential grooves. The inlet tube portion is disposed in the first aperture and coupled to the first cylindrical coupling member. The first and second O-ring gaskets are disposed in the first and second circumferential grooves, respectively. The outlet tube portion is disposed in the second aperture and is coupled to the second cylindrical coupling member.

Claims

1. A battery cell assembly, comprising:

a cooling fin having a tube, a substantially rectangular-shaped metal plate, first and second cylindrical aluminum coupling members, and first, second, third and fourth O-ring gaskets;

the tube having an inlet tube portion and an outlet tube portion, the tube being disposed on and coupled to a peripheral region of the substantially rectangular-shaped metal plate;

the first cylindrical aluminum coupling member having a first aperture extending therethrough that defines an interior surface of the first cylindrical aluminum coupling member, the first cylindrical aluminum coupling member further having first and second circumferential grooves extending around the first cylindrical aluminum coupling member;

the inlet tube portion being disposed in the first aperture such that an exterior surface of the inlet tube portion directly contacts the interior surface of the first cylindrical aluminum coupling member, and inlet tube fixedly coupled to the first cylindrical aluminum coupling member;

the first and second O-ring gaskets being disposed in the first and second circumferential grooves, respectively, such that the first and second O-ring gaskets are removably coupled to the first cylindrical aluminum coupling member and are spaced apart from one another a first distance;

the second cylindrical aluminum coupling member having a second aperture extending therethrough that defines an interior surface of the second cylindrical aluminum coupling member, the second cylindrical aluminum coupling member further having third and fourth circumferential grooves extending around the second cylindrical aluminum coupling member;

the outlet tube portion being disposed in the second aperture such that an exterior surface of the outlet tube portion directly contacts the interior surface of the second cylindrical aluminum coupling member, and the outlet tube portion being fixedly coupled to the second cylindrical aluminum coupling member;

the third and fourth O-ring gaskets being disposed in the third and fourth circumferential grooves, respectively, such that the third and fourth O-ring gaskets are removably coupled to the second cylindrical aluminum coupling member and being spaced apart from one another a second distance;

first and second battery cells being disposed against first and second sides, respectively, of the cooling fin; and

a first cooling manifold having a first housing portion, a first inlet member, a second outlet member, and a first port member, the first housing portion defining a first interior region, the first port member extending upwardly from a top surface of the first housing portion, the first port member fluidly communicating with the first interior region, the first inlet member and the first outlet member fluidly communicating with the first interior region, the first cylindrical aluminum coupling member being fluidly and removably coupled to the first port member such that the first and second O-ring gaskets form first and second fluid-tight seals, respectively, with an interior surface of the first port member.

2. The battery cell assembly of claim 1, wherein the inlet tube portion and the outlet tube portion extending substantially parallel to one another, and the inlet tube portion and the outlet tube portion both extending in substantially a first direction.

3. The battery cell assembly of claim 1, wherein the peripheral region of the substantially rectangular-shaped metal plate includes at least first, second, and third peripheral edge portions, the substantially rectangular-shaped metal plate has a first side and a second side, at least a portion of the tube being coupled to the first side and being disposed on the first, second, and third peripheral edge portions, the tube defining an internal flow path therein.

4. The battery cell assembly of claim 3, wherein the substantially rectangular-shaped metal plate is constructed of aluminum and the tube is constructed of aluminum.

5. The battery cell assembly of claim 3, wherein the substantially rectangular-shaped metal plate is sized to cover substantially all of a substantially rectangular-shaped side surface of the first battery cell.

6. The battery cell assembly of claim 1, further comprising first and second frame members being coupled together, the cooling fin and the first and second battery cells being disposed between the first and second frame members.

7. The battery cell assembly of claim 6, wherein:

the first frame member having a first frame portion and first and second leg portions extending from an end of the first frame portion in a first direction; and

the second frame member having a second frame portion and third and fourth leg portions extending from an end of the second frame portion in the first direction.

8. The battery cell assembly of claim 7, wherein the first cooling manifold is disposed between the first and second leg portions of the first frame member, and a height of the first cooling manifold in the first direction is less than or equal to a height of each of the first and second leg portions in the first direction.

10. The battery cell assembly of claim 1, wherein the first O-ring gasket has a wall with a substantially circular-shaped cross-sectional profile, and a depth of the first groove of the first cylindrical aluminum coupling member being greater than a radius of the circular-shaped cross-sectional profile of the wall of the first O-ring gasket.

11. The battery cell assembly of claim 10, wherein the first cooling manifold is a plastic cooling manifold;

and the first port has a tubular-shaped wall that extends upwardly from the top surface of the first housing portion a third distance, and further extends downwardly from the top surface of the first housing portion into the first interior region a fourth distance greater than the third distance.

9. A method for coupling a cooling fin to first and second cooling manifolds, comprising:

providing a cooling fin having a tube, a substantially rectangular-shaped metal plate, first and second cylindrical metal coupling members, and first, second, third and fourth O-ring gaskets;

the tube having an inlet tube portion and an outlet tube portion, the tube being disposed on and coupled to a peripheral region of the substantially rectangular-shaped metal plate;

the first cylindrical metal coupling member having a first aperture extending therethrough that defines an interior surface of the first cylindrical metal coupling member, the first cylindrical metal coupling member having first and second circumferential grooves extending around the first cylindrical metal coupling member;

the inlet tube portion being disposed in the first aperture such that an exterior surface of the inlet tube portion directly contacts the interior surface of the first cylindrical metal coupling member, and the inlet tube portion being fixedly coupled to the first cylindrical metal coupling member;

the first and second O-ring gaskets being disposed in the first and second circumferential grooves, respectively, such that the first and second O-ring gaskets are removably coupled to the first cylindrical metal coupling member;

the first O-ring gasket having a wall with a substantially circular-shaped cross-sectional profile, and a depth of the first groove of the first cylindrical aluminum coupling member being greater than a radius of the circular-shaped cross-sectional profile of the wall of the first O-ring gasket;

the second cylindrical metal coupling member having a second aperture extending therethrough that defines an interior surface of the second cylindrical metal coupling member, and the second cylindrical metal coupling member further having third and fourth circumferential grooves extending around the second cylindrical metal coupling member;

the outlet tube portion being disposed in the second aperture such that an exterior surface of the outlet tube portion directly contacts the interior surface of the second cylindrical metal coupling member, and the outlet tube portion being fixedly coupled to the second cylindrical metal coupling member;

the third and fourth O-ring gaskets being disposed in the third and fourth circumferential grooves, respectively, such that the third and fourth O-ring gaskets are removably coupled to the second cylindrical metal coupling member;

providing a first cooling manifold having a first housing portion and a first port member, the first housing portion defining a first interior region, the first port member extending upwardly from a top surface of the first housing portion, the first port member fluidly communicating with the first interior region;

providing a second cooling manifold having a second housing portion and a second port member, the second housing portion defining a second interior region, the second port member extending upwardly from a top surface of the second housing portion, the second port member fluidly communicating with the second interior region;

disposing the first cylindrical metal coupling member into an aperture of the first port member of the first cooling manifold such that the first and second O-ring gaskets form first and second fluid-tight seals, respectively, with an inner surface of the first port member of the first cooling manifold; and

disposing the second cylindrical metal coupling member into an aperture of the second port member of the second cooling manifold such that the third and fourth O-ring gaskets form first and second fluid-tight seals, respectively, with an inner surface of the second port member of the second cooling manifold.

12. A battery cell assembly, comprising:

a cooling fin having a tube, a substantially rectangular-shaped metal plate, first and second cylindrical coupling members, and first, second, third and fourth O-ring gaskets;

the tube having an inlet tube portion and an outlet tube portion, the tube being disposed on and coupled to a peripheral region of the substantially rectangular-shaped metal plate;

the first cylindrical coupling member having a first aperture extending therethrough that defines an interior surface of the first cylindrical coupling member, the first cylindrical coupling member further having first and second circumferential grooves extending around the first cylindrical coupling member;

the inlet tube portion being disposed in the first aperture such that an exterior surface of the inlet tube portion directly contacts the interior surface of the first cylindrical coupling member, and the inlet tube portion being fixedly coupled to the first cylindrical coupling member;

each of the first and second O-ring gaskets having a wall with a substantially circular-shaped cross-sectional profile, the first and second O-ring gaskets being disposed in the first and second circumferential grooves, respectively, such that the first and second O-ring gaskets are removably coupled to the first cylindrical coupling member and are spaced apart from one another a first distance;

the second cylindrical coupling member having a second aperture extending therethrough that defines an interior surface of the second cylindrical coupling member, the second cylindrical coupling member further having third and fourth circumferential grooves extending around the second cylindrical coupling member;

the outlet tube portion being disposed in the second aperture such that an exterior surface of the outlet tube portion directly contacts the interior surface of the second cylindrical coupling member, and the outlet tube portion being fixedly coupled to the second cylindrical coupling member;

each of the third and fourth O-ring gaskets having a wall with a substantially circular-shaped cross-sectional profile, the third and fourth O-ring gaskets being disposed in the third and fourth circumferential grooves, respectively, such that the third and fourth O-ring gaskets are removably coupled to the second cylindrical coupling member and being spaced apart from one another a second distance;

first and second battery cells being disposed against first and second sides, respectively, of the cooling fin; and

a first cooling manifold having a first housing portion, a first inlet member, a first outlet member, and a first port member, the first housing portion defining a first interior region, the first port member being coupled to the first housing portion and fluidly communicating with the first interior region, the first inlet member and the first outlet member fluidly communicating with the first interior region, the first cylindrical coupling member being fluidly and removably coupled to the first port member such that the first and second O-ring gaskets form first and second fluid-tight seals, respectively, with an interior surface of the first port member.

13. The battery cell assembly of claim 12, further comprising a second cooling manifold having a second housing portion, a second inlet member, a second outlet member, and a first port member, the second housing portion defining a second interior region, the second port member extending upwardly from a top surface of the second housing portion and fluidly communicating with the second interior region, the second inlet member and the second outlet member fluidly communicating with the second interior region, the second cylindrical coupling member being fluidly and removably coupled to the second port member such that the third and fourth O-ring gaskets form third and fourth fluid-tight seals, respectively, with an interior surface of the second port member.

14. The battery cell assembly of claim 12, wherein a depth of the first groove of the first cylindrical aluminum coupling member being greater than a radius of the circular-shaped cross-sectional profile of the wall of the first O-ring gasket.

15. The battery cell assembly of claim 12, wherein the first cooling manifold is a plastic cooling manifold;

and the first port has a tubular-shaped wall that extends upwardly from the top surface of the first housing portion a third distance, and further extends downwardly from the top surface of the first housing portion into the first interior region a fourth distance greater than the third distance.