THERMAL EVENT MITIGATION FOR BATTERY PACKS

This disclosure relates to thermal event mitigation for battery packs of electrified vehicles. An example electrified vehicle includes a battery assembly with an enclosure assembly surrounding at least one battery array and a bag configured to selectively release nitrogen. The electrified vehicle further includes a controller configured to issue a plurality of corrective action commands in response to a detected thermal event. One of the corrective action commands includes instructing the bag to generate and release nitrogen within the enclosure assembly. Among other benefits, which will be appreciated from the below description, the disclosed arrangement promptly mitigates a thermal event of the battery assembly and takes additional corrective actions, such as providing various prompts and status indicators to the user.