Patent ID: 11916211
Assignee: HAMILTON SUNDSTRAND CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A system comprising:
a stack of battery cells within a container, wherein an interior space of the container is filled with a coolant in direct contact with the battery cells, wherein the coolant in the interior space is pressurized to a first pressure, and wherein each battery cell has a cell interior pressurized to a second pressure lower than the first pressure;
a respective valve included in at least one of the battery cells for admitting the coolant at the first pressure into the cell interior of the at least one battery cell at the second pressure in the event of a thermal runaway event, and for keeping the coolant out of at least one battery cell otherwise; and
a controller operatively connected to a respective sensor or sensors of each battery cell for monitoring thermal runaway, and operatively connected to each respective valve to control each of the respective valves to contain thermal runaway, wherein the controller is configured and adapted to allow or shut off flow of the coolant by controlling each respective valve.