VOLUME FILLER FOR IMMERSION COOLING BATTERY ARRAY DESIGNS

This disclosure relates generally to battery packs for electrified vehicles, and in particular relates to a volume filler for immersion cooled battery arrays. In some aspects, the techniques described herein relate to a battery pack, including: an enclosure assembly defining a volume; a battery array within the volume, wherein the battery array includes a plurality of battery cells; and a volume filler within the volume, wherein the volume filler is disposed on a side of the battery array.