US 12,148,946 B2
Immersion cooling system for battery systems of electric vehicles
Taeyoung Han, Bloomfield Hills, MI (US); Ryan Patrick Hickey, Austin, TX (US); Matthew Swift, Detroit, MI (US); Chih-hung Yen, Bloomfield Hills, MI (US); William Yu Chen, Troy, MI (US); Goro Tamai, Bloomfield Hills, MI (US); and Bahram Khalighi, Holladay, UT (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on May 13, 2022, as Appl. No. 17/743,605.
Prior Publication US 2023/0369708 A1, Nov. 16, 2023
Int. Cl. H01M 50/293 (2021.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/647 (2014.01); H01M 10/6567 (2014.01); H01M 10/658 (2014.01); H01M 50/211 (2021.01); H01M 50/317 (2021.01); H01M 50/367 (2021.01)
CPC H01M 50/293 (2021.01) [H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/647 (2015.04); H01M 10/6567 (2015.04); H01M 10/658 (2015.04); H01M 50/211 (2021.01); H01M 50/317 (2021.01); H01M 50/367 (2021.01); H01M 2220/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An immersion cooling system for a battery system, comprising:
a battery enclosure;
G battery cell groups arranged in the battery enclosure, wherein each of the G battery cell groups include C battery cells, where G and C are integers greater than one;
a plurality of dividers each arranged between an adjacent pair of the G battery cell groups, wherein each of the plurality of dividers includes a first metal plate extending along a side surface of one of the C battery cells of one of the adjacent pair of the G battery cell groups, a second metal plate extending along a side surface of one of the C battery cells of the other one of the adjacent pair of the G battery cell groups, and at least one insulating member disposed between the first metal plate and the second metal plate, and wherein the second metal plate of each of the plurality of dividers has a “C”-shaped cross-section;
a gas manifold configured to receive vent gases from each of the G battery cell groups;
a first liquid manifold configured to supply a recirculated dielectric fluid to the battery enclosure to immerse the C battery cells of the G battery cell groups; and
a second liquid manifold configured to receive the recirculated dielectric fluid from the battery enclosure.
 
6. A method for cooling a battery system, comprising:
arranging C battery cells in G battery cell groups, where G and C are integers greater than one;
arranging the G battery cell groups in a battery enclosure;
arranging a divider of a plurality of dividers between an adjacent pair of the G battery cell groups, wherein each of the plurality of dividers includes a first metal plate extending along a side surface of one of the C battery cells of one of the adjacent pair of the G battery cell groups, a second metal plate extending along a side surface of one of the C battery cells of the other one of the adjacent pair of the G battery cell groups, and at least one insulating member disposed between the first metal plate and the second metal plate, and wherein the second metal plate of each of the plurality of dividers has a “C”-shaped cross-section;
removing, via a gas manifold, vent gases from the battery enclosure using a gas manifold in communication with each of the G battery cell groups;
supplying, via a first liquid manifold, a recirculated dielectric fluid to the battery enclosure to immerse the C battery cells of the G battery cell groups; and
removing, via a second liquid manifold, the recirculated dielectric fluid from the battery enclosure.