Battery cell assemblies

• US 9,203,125 B2
• Filed: 02/27/2013
• Issued: 12/01/2015
• Est. Priority Date: 04/17/2010
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Bronczyk, Steven A., Tom, Kwok, Koetting, William
• Primary Examiner(s): Barcena, Carlos
• Application Number:
  US13/778,916
• Publication Number:
  US 20130177797A1
• Time in Patent Office: 1,007 Days
• US Class Current: 1/1
• CPC Class Codes: H01M 10/052 Li-accumulators
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/647 Prismatic or flat cells, e.g. pouch cells
• CPC Class Codes: H01M 10/6566 Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers H01M10/6565 takes precedence
• CPC Class Codes: H01M 50/211 adapted for pouch cells
• CPC Class Codes: H01M 50/227 Organic material
• CPC Class Codes: H01M 50/244 Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
• CPC Class Codes: H01M 50/264 for cells or batteries, e.g. straps, tie rods or peripheral frames
• CPC Class Codes: H01M 50/291 characterised by their shape
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery cell assembly in accordance with an exemplary embodiment is provided. The assembly includes a first frame member having a first plurality of tabs extending away from a first peripheral edge of the first frame member. Each tab of the first plurality of tabs has a first coupling feature at a distal end of the respective tab. The assembly further includes a second frame member having a plurality of slots extending into a second peripheral edge of the second frame member. The assembly further includes a battery cell disposed between the first and second frame members, and each first coupling feature of each tab of the first plurality of tabs is configured to engage a respective slot of the plurality of slots of the second frame member to fixedly hold the first and second frame members together.

Claims

1. A frame member, comprising:

a rectangular ring-shaped portion having a plurality of tabs extending away from a peripheral edge of the rectangular ring-shaped portion in a first direction, each tab of the plurality of tabs having an aperture extending therethrough such that air flows through each aperture, the rectangular ring-shaped portion further having a plurality of coupling members extending from an inner region of the rectangular ring-shaped portion and having distal ends proximate to the peripheral edge, each coupling member of the plurality coupling members extending generally perpendicular to a respective tab of the plurality of tabs that is disposed proximate to the respective coupling member.

2. The frame member of claim 1, wherein the rectangular ring-shaped portion further includes a spacer portion extending away from a rear surface of the rectangular ring-shaped portion, the spacer portion defining a plurality of holes for allowing air flow therethrough into an open region defined by the rectangular ring-shaped portion.

3. The frame member of claim 1, wherein the frame member has first and second tabs of the plurality of tabs disposed on first and second sides, respectively, of the rectangular ring-shaped portion and extending in the first direction;

the first tab having first and second leg portions extending parallel to one another and a first bridging portion disposed between the first and second leg portions such that a first aperture is defined within the first tab;

the second tab having third and fourth leg portions extending parallel to one another and a second bridging portion disposed between the third and fourth leg portions such that a second aperture is defined within the second tab; and

the frame member further having first and second cross-members disposed across an open region defined by the rectangular ring-shaped portion, the first and second cross-members being disposed parallel to one another and apart from one another, wherein a centerline extending through the first cross-member is co-planar with first and second centerlines extending through the first and third leg portions, respectively, and a centerline extending through the second cross-member is co-planar with second and fourth centerlines extending through the second and fourth leg portions, respectively, such that the air flows through the first aperture and through a gap between the first and second cross-members and further through the second aperture.

4. A battery cell assembly, comprising:

a first frame member having a first plurality of tabs extending away from a first peripheral edge of the first frame member in a first direction, each tab of the first plurality of tabs having an aperture extending therethrough such that air flows through each aperture, the first frame member further having a first plurality of coupling members extending from an inner region of the first frame member and having distal ends proximate to the first peripheral edge, each coupling member of the first plurality coupling members extending generally perpendicular to a respective tab of the first plurality of tabs that is disposed proximate to the respective coupling member;

a second frame member having a second plurality of tabs extending away from a second peripheral edge of the second frame member in the first direction, each tab of the second plurality of tabs having an aperture extending therethrough; and

a battery cell disposed between the first and second frame members, and each tab of the second plurality of tabs of the second frame member is configured to engage a respective coupling member of the first plurality coupling members to fixedly hold the first and second frame members together.

5. The battery cell assembly of claim 4, wherein the second frame member further includes a second plurality of coupling members extending from an inner region of the second frame member and having distal ends proximate to the second peripheral edge, each coupling member of the second plurality coupling members extending generally perpendicular to a respective tab of the second plurality of tabs disposed proximate to the respective coupling member.

6. The battery cell assembly of claim 4, wherein the first frame member further includes a spacer portion extending away from a rear surface of the first frame member, the spacer portion defining a plurality of holes for allowing air flow therethrough into an open region defined by the first frame member.

7. The battery cell assembly of claim 4, wherein the second frame member has a rectangular ring-shaped portion having first and second tabs of the second plurality of tabs disposed on first and second sides, respectively, of the rectangular ring-shaped portion and extending in the first direction;

the first tab having first and second leg portions extending parallel to one another and a first bridging portion disposed between the first and second leg portions such that a first aperture is defined within the first tab;

the second tab having third and fourth leg portions extending parallel to one another and a second bridging portion disposed between the third and fourth leg portions such that a second aperture is defined within the second tab;

the second frame member further having first and second cross-members disposed across an open region defined by the rectangular ring-shaped portion, the first and second cross-members being disposed parallel to one another and apart from one another, wherein a centerline extending through the first cross-member is co-planar with first and second centerlines extending through the first and third leg portions, respectively, and a centerline extending through the second cross-member is co-planar with second and fourth centerlines extending through the second and fourth leg portions, respectively, such that the air flows through the first aperture and through a gap between the first and second cross-members and further through the second aperture.