Battery module support beam

Patent metadata

Field	Value
Publication number	US-11967724-B2
Application number	US-202017064163-A
Country	US
Kind code	B2
Filing date	Oct 6, 2020
Priority date	Oct 6, 2020
Publication date	Apr 23, 2024
Grant date	Apr 23, 2024

Abstract

A battery support beam and battery module including the battery support beam are provided. The battery support beam includes a first end, a second end opposite the first end, and a battery support section between the first end and the second end. The battery support section includes a plurality of cylindrical sleeves arranged in a predetermined pattern, each having a cylindrical sidewall having an open-ended top and an open-ended bottom. Each of the cylindrical sidewalls is configured to be arranged around a cylindrical middle section of one of a plurality of cylindrical battery cells. The battery module includes a plurality of cylindrical battery cells including a plurality of groups of battery cells arranged in the predetermined pattern. The battery module further includes a battery support section for each of the plurality of groups of battery cells.

First claim

What is claimed is:

1. A battery support beam comprising:
a battery support section between a first end and a second end,
wherein:
the battery support section comprises a plurality of cylindrical sleeves arranged in a predetermined pattern, each having a cylindrical sidewall;
the first end is configured to be attached to a first sidewall and the second end is configured to be attached to a second sidewall such that the first sidewall and the second sidewall partially encase the battery support beam and a plurality of cylindrical battery cells; and
the cylindrical sidewall between each of a plurality of adjacent pairs of cylindrical sleeves comprises an electrically conductive connector extending through the cylindrical sidewall and configured to electrically connect electrically-active casings of cylindrical battery cells arranged in the adjacent pair of cylindrical sleeves and connected in parallel.

2. The battery support beam of claim 1 , wherein each of the plurality of cylindrical sleeves shares a sidewall with at least one other cylindrical sleeve of the plurality of cylindrical sleeves.

3. The battery support beam of claim 1 , wherein each of the cylindrical sidewalls has an axial length that is less than or equal to 80 percent of an axial length of each of the plurality of cylindrical battery cells.

4. The battery support beam of claim 1 , wherein each of the cylindrical sidewalls is configured to be substantially centered between a top and a bottom of one of the plurality of cylindrical battery cells along an axial length of the cylindrical battery cell, so that at least 10% or more of a top and a bottom of each of the plurality of cylindrical battery cells is not covered by the cylindrical sidewall of each of the plurality of cylindrical sidewalls.

5. The battery support beam of claim 1 , wherein the predetermined pattern is a close-hex-pack configuration.

6. The battery support beam of claim 1 , wherein the battery support beam comprises a plastic material.

7. The battery support beam of claim 1 , wherein each electrically conductive connector comprises an electrically conductive pin.

8. A battery comprising:
a plurality of cylindrical battery cells; and
a first battery support beam and a second battery support beam, each comprising a first end, a second end, and a battery support section between the first end and the second end, the battery support section of each comprising a plurality of cylindrical sleeves each having a cylindrical sidewall having an open-ended top and an open-ended bottom,
wherein:
each of the cylindrical sidewalls of the first battery support beam is arranged around a cylindrical middle section of one of a first subset of the plurality of cylindrical battery cells;
each of the cylindrical sidewalls of the second battery support beam is arranged around a cylindrical middle section of one of a second subset of the plurality of cylindrical battery cells; and
the first battery support beam is adjacent to the second battery support beam and a third subset of the plurality of cylindrical battery cells is arranged between the battery support sections of the adjacent first and second battery support beams.

9. The battery of claim 8 , comprising:
a first sidewall attached to the first end of each of the first battery support beam and the second battery support beam;
a second sidewall opposite the first sidewall attached to the second end of each of the first battery support beam and the second battery support beam;
a third sidewall attached to a first end of each of the first sidewall and the second sidewall;
a fourth sidewall opposite the third sidewall attached to a second end of each of the first sidewall and the second sidewall; and
a carrier layer,

wherein:
the first sidewall, the second sidewall, the third sidewall, the fourth sidewall, and the carrier layer encase the plurality of cylindrical battery cells, the first battery support beam, and the second battery support beam on five sides.

10. The battery of claim 9 , wherein the carrier layer comprises a plurality of recesses, and
wherein a first end of each of the plurality of cylindrical battery cells is disposed into a respective recess of the plurality of recesses.

11. The battery of claim 10 , wherein each of the plurality of cylindrical battery cells comprises the first end and a second end, the battery further comprising a cooling surface attached to the second end of each of the plurality of cylindrical battery cells.

12. The battery of claim 8 , wherein each of the cylindrical sidewalls of the first battery support beam has an axial length that is less than or equal to 80 percent of an axial length of each of the first subset of the plurality of cylindrical battery cells, and
wherein each of the cylindrical sidewalls of the first battery support beam is substantially centered between a top and a bottom of one of the first subset of the plurality of cylindrical battery cells along the axial length of the cylindrical battery cell, so that at least 10% or more of a top and a bottom of each of the first subset of the plurality of cylindrical battery cells is not covered by the cylindrical sidewall of each of the cylindrical sidewalls of the first battery support beam.

13. The battery of claim 8 , wherein the plurality of cylindrical battery cells are arranged in a close-hex-pack configuration.

14. The battery of claim 8 , wherein the first battery support beam comprises a plastic material.

15. The battery of claim 8 , wherein each of the plurality of cylindrical battery cells comprises an exposed region of electrically-active casing that covers a first end and a side of each of the plurality of cylindrical battery cells.

16. The battery of claim 15 , wherein the plurality of cylindrical sleeves of the battery support section of the first battery support beam and the plurality of cylindrical sleeves of the battery support section of the second battery support beam comprise a plurality of adjacent pairs of cylindrical sleeves, and wherein the cylindrical sidewall between each of the plurality of adjacent pairs of cylindrical sleeves comprises an electrically conductive connector extending through the cylindrical sidewall to electrically connect the electrically-active casings of cylindrical battery cells arranged in the adjacent pair of cylindrical sleeves and connected in parallel.

17. The battery of claim 8 , wherein each of the first subset of the plurality of cylindrical battery cells are connected in parallel with each other, and
wherein each of the second subset of the plurality of cylindrical battery cells are connected in parallel with each other.

18. The battery of claim 8 , further comprising a barrier layer disposed between the first subset of the plurality of cylindrical battery cells and the second subset of the plurality of cylindrical battery cells, wherein the barrier layer electrically isolates sidewalls of the first subset of the plurality of cylindrical battery cells from sidewalls of the second subset of the plurality of cylindrical battery cells.

19. The battery of claim 8 , wherein:
the first subset of the plurality of cylindrical battery cells and a first portion of the third subset of the plurality of cylindrical battery cells are connected in parallel with each other; and
the second subset of the plurality of cylindrical battery cells and a second portion of the third subset of the plurality of cylindrical battery cells are connected in parallel with each other.

Assignees

• Rivian Ip Holdings Llc

Inventors

• Cournoyer Travis

Classifications

• H01M50/20 Primary

  Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders (structural combination of accumulators with charging apparatus H01M10/46) · CPC title

• H01M10/613

  Cooling or keeping cold · CPC title

• H01M10/643

  Cylindrical cells · CPC title

• H01M50/529

  Intercell connections through partitions, e.g. in a battery casing · CPC title

• H01M50/244 Primary

  Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method · CPC title