BATTERY PACK SYSTEM AND METHOD FOR MITIGATING AND RESPONDING TO THERMAL RUNAWAY

Provided in this disclosure is a battery pack system including battery modules each including battery cells. An air-tight, sealed enclosure retains the battery modules. A battery manager controls operation of each of the battery modules. One or more thermal runaway shield (TRS) pouches are associated with each of the battery modules. The TRS pouches include a thermally cooling fluid that ruptures into the battery module from heat produced in a thermal runaway event in the battery module. A pressure monitoring sensor detects an increase in air pressure within the sealed enclosure associated with gas released from the thermal runaway event in the battery cells in the battery modules. A communication component transmits a pressure signal from the pressure monitoring sensor to the battery manager for implementing a subsequent management step of the battery pack system.