Battery cell support assembly

Patent metadata

Field	Value
Publication number	US-10566588-B2
Application number	US-201615271314-A
Country	US
Kind code	B2
Filing date	Sep 21, 2016
Priority date	Sep 21, 2016
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

An exemplary support assembly for a battery array includes, among other things, a frame and an insert secured to the frame. The insert is configured to hold at least one battery cell within the frame. The frame is made of a first material and the insert is made of a second material that is softer than the first material. An exemplary method of securing a battery cell within a traction battery pack of an electrified vehicle includes, among other things, compressing an insert against the at least one battery cell. The insert is secured to a frame made of a first material. The insert is made of a second material that is softer than the first material.

First claim

What is claimed is:

1. A support assembly for a battery array, comprising:
a frame; and
an insert secured to the frame, the insert configured to hold at least one battery cell within the frame, the frame made of a first material and the insert made of a second material, the first material having a durometer value that is higher than a durometer value of the second material, the insert outside the least one battery cell.

2. The support assembly of claim 1 , wherein the frame includes an aperture configured to receive the at least one battery cell, the insert disposed about a perimeter of the aperture.

3. The support assembly of claim 2 , further comprising the at least one battery cell, wherein the at least one battery cell is press-fit axially into the aperture such that the at least one battery cell compresses the insert radially between a shoulder of the at least one battery cell and a flange frame of the frame.

4. The support assembly of claim 2 , further comprising the at least one battery cell, wherein the at least one battery cell is a pouch cell having an active area and a flange extending radially from the active area, the flange a sealed area of an outer covering of the at least one battery cell, the insert configured to compress against the outer covering.

5. The support assembly of claim 2 , further comprising the at least one battery cell, wherein the at least one battery cell includes a first battery cell having a portion positioned within the aperture, and a second battery cell having a portion positioned within the aperture, the first and second battery cells compressed together along an axis, the perimeter of the aperture circumferentially distributed about the axis.

6. The support assembly of claim 2 , wherein the aperture has a rectangular perimeter, and the insert includes a portion disposed on a first lateral side, an opposing, second lateral side, a top side, and a bottom side of the rectangular perimeter.

7. The support assembly of claim 2 , wherein the perimeter includes a plurality of corners without the insert to provide relief areas for the at least one battery cell.

8. The support assembly of claim 1 , wherein the frame is disposed about an axis, and the insert is configured face toward the axis such that the insert directly contacts a surface of the at least one battery cell facing away from the axis.

9. The support assembly of claim 1 , wherein the first material comprises nylon, and the second material is a polyurethane foam.

10. The support assembly of claim 1 , wherein the frame and insert are portions of a traction battery pack of an electrified vehicle.

11. An electrified vehicle battery array comprising the support assembly of claim 1 as a first support assembly and further comprising:
a plurality of second support assemblies disposed along an axis with first support assembly, the first frame and second support assemblies compressed along the axis.

12. A method of securing a battery cell within a traction battery pack of an electrified vehicle, comprising:
compressing an insert against at least one battery cell, the insert secured to a frame made of a first material, the insert made of a second material, the first material having a higher durometer value than the second material, the insert outside the at least one battery cell.

13. The method of claim 12 , comprising securing the insert to the frame by molding the insert on to the frame.

14. The method of claim 12 , wherein the first material comprises nylon, and the second material is a polyurethane foam.

15. The method of claim 12 , wherein the frame and insert are portions of a traction battery pack of an electrified vehicle.

16. The method of claim 12 , further comprising powering at least one drive wheel of an electrified vehicle with the at least one battery cell.

17. The method of claim 12 , wherein the at least one battery cell is disposed along an axis of a battery array, and the compressing is in a radial direction relative to the axis, wherein the frame includes an aperture configured to receive the at least one battery cell, wherein a perimeter of the aperture extends circumferentially continuously about the axis, wherein the insert is disposed about a perimeter of the aperture.

18. The method of claim 12 , wherein the at least one battery cell is a pouch cell.

19. A support assembly for a battery array, comprising:
a frame made of a first material having a first durometer value; and
an insert made of a second material having a second durometer value that is less than the first durometer value, the insert secured directly to a frame flange of the frame and configured to hold at least one battery cell.

Assignees

• Ford Global Tech Llc

Inventors

• Subramanian Rajaram
• Boddakayala Bhaskara
• Paramasivam Saravanan
• Droste Steve
• Rivera Enrique

Classifications

• B29C44/1228 Primary

  Joining preformed parts by the expanding material · CPC title

• B29K2075/00

  Use of {PU, i.e.} polyureas or polyurethanes {or derivatives thereof}, as moulding material · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• B29K2105/04

  cellular or porous · CPC title

• B29C70/88

  characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced · CPC title