Abstract: A battery pack for a vehicle includes a housing including at least one pack vent between an interior and an exterior of the housing. A plurality of battery cells are contained within the housing. A channel tray includes channel arrays having a plurality of vent openings each positioned in connection with a vent on each of the plurality of battery cells. The channel arrays are in connection with the at least one vent of the housing, wherein the channel system is enclosed from the rest of the volume of the pack and the plurality of vent openings are each provided with a vent cover.

Abstract: A method for assembling a rechargeable energy storage system includes assembling a plurality of cell modules into an upper structure of an enclosure, wherein the plurality of cell modules are composed of a plurality of battery cells and a plurality of collectors, wherein the plurality of collectors are arranged to electrically connect the battery cells; inverting the enclosure including the plurality of cell modules assembled therein; filling the enclosure with a liquified potting compound; curing the liquified potting compound to form a solidified potting compound; and assembling a bottom structure onto the upper structure of the enclosure to form a plurality of longitudinal channels.