Battery module

A method of neutralizing gases ejected from a battery module, the method comprising:

• disposing at least one first flame retarding device within the battery module, wherein the at least one first flame retarding device holds a flame retarding agent therein, wherein the battery module includes a housing including a first end plate defining a vent opening, a second end plate, a first side plate coupled to the first end plate and the second end plate, and a second side plate coupled to the first end plate and the second end plate, wherein the battery module includes a plurality of battery cells secured within the housing between the first end plate, the second end plate, the first side plate, and the second side plate, and wherein the at least one first flame retarding device is coupled to the housing proximate to the vent opening of the first end plate;
• rupturing the at least one first flame retarding device during a thermal event of one or more of the plurality of battery cells;
• and
• releasing the flame retarding agent from the at least one first flame retarding device to neutralize gases ejected from one or more of the plurality of battery cells during the thermal event of one or more of the plurality of battery cells.