HEAT SHRINKABLE AND STRETCHABLE BANDS FOR SEALING TRACTION BATTERY PACK ENCLOSURE ASSEMBLIES

Electrified vehicles may be powered by traction battery packs. An exemplary traction battery pack may include a heat shrinkable elastic polymer band that may be installed around an external seam of a sealing interface of an enclosure assembly of the traction battery pack. The heat shrinkable elastic polymer band may be heated to shrink the band, thereby forming an adequate seal about the external seam.