US 12,148,910 B2
Thermal management systems with passive quenching sacks for liquid immersion cooled battery assemblies
Jermain E. Onye, Raleigh, NC (US); Ryan P. Hickey, Austin, TX (US); Pooja Suresh, Madison Heights, MI (US); and Andrew P. Oury, Troy, MI (US)
Assigned to GM Global Technology Operations LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Jul. 19, 2022, as Appl. No. 17/868,035.
Prior Publication US 2024/0030519 A1, Jan. 25, 2024
Int. Cl. H01M 10/6567 (2014.01); H01M 10/613 (2014.01); H01M 10/625 (2014.01); H01M 10/651 (2014.01); H01M 50/249 (2021.01); H01M 50/342 (2021.01); H01M 50/375 (2021.01)
CPC H01M 10/6567 (2015.04) [H01M 10/613 (2015.04); H01M 10/625 (2015.04); H01M 10/651 (2015.04); H01M 50/249 (2021.01); H01M 50/3425 (2021.01); H01M 50/375 (2021.01); H01M 2220/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A passive thermal management (PTM) system for a battery assembly having a battery case containing multiple battery cells, each of the battery cells having a cell case with a cell vent or flood port in the cell case, the PTM system comprising:
a fluid container configured to mount inside the battery assembly, physically abut the cell cases of the battery cells, and insert between the battery case and the battery cells, the fluid container stowing therein a coolant fluid and defining a first plurality of fluid ports configured to face and thereby fluidly connect to the cell vent or flood port of the battery cells and dispense thereto the coolant fluid; and
a first plurality of thermomechanical plugs physically mounted to the fluid container and sealing the first plurality of fluid ports, wherein the first plurality of thermomechanical plugs is configured to passively open at a first predefined temperature to thereby unseal the first plurality of fluid ports such that the coolant fluid is fed from the fluid container into the battery cells.