Passive vent system

A battery thermal event management system, comprising:

• an enclosure to store a plurality of battery modules;
• one or more ventilation panels;
• at least one actuator to open the one or more ventilation panels;
• at least one sensor to detect one or more parameters;
• and
• a detection system coupled to the enclosure and including:
• a processor coupled to the at least one actuator and the at least one sensor;
• a memory accessible to the processor and programmed to configure the battery thermal event management system to:
• detect, via the at least one sensor, the one or more parameters;
• determine whether the detected one or more parameters indicate a ventilating event;
• and
• based on the detected one or more parameters indicating the ventilating event, open, via the at least one actuator, the one or more ventilation panels,
• wherein the one or more ventilation panels are configured to operate in a passive deflagration panel mode, such that an internal pressure generated within the enclosure can cause the one or more ventilation panels to open or partially open without actuation via the at least one actuator.