BATTERY MODULE

The present disclosure relates to a battery module comprising: an enclosure comprising an interior surface, the interior surface defined by a first endplate and a second endplate extending between a first side wall and a second side wall and a top plate and a bottom plate, two or more battery cells disposed in the interior space of the enclosure; and one or more spacer elements disposed between adjacent battery cells, each of the spacer elements comprising at least one thermal capacitive layer and at least one insulation layer; wherein at least the insulation portion of each of the spacer elements extends to contacts the interior surface of the enclosure such that a thermal barrier is formed between the adjacent battery cells; wherein each of the spacer elements contact one or more channels formed on and/or in the interior surface: and wherein the one or more channels are substantially U-shaped having opposing sidewalls and a bottom surface.