Battery pack cover with a protruding double wall battery divider and thermal runaway barrier

A cover for a battery pack for an electrical vehicle, comprising:

• a cover base portion defining an edge perimeter sized to cover an opening of a housing subcomponent of the battery pack, the cover base portion comprising a plurality of cover fastening features proximal to the edge perimeter defining a cover fastening perimeter;
• and
• a means for separating battery pack components, the means protruding from the cover base portion and for extending through a housing subcomponent, mateable to the cover, to a bottom floor of the housing subcomponent, wherein the means for separating battery pack components are also for defining an air gap between two battery pack components,
• wherein the means for separating battery pack components are hollow, and
• wherein the cover base portion and the means for separating battery pack components comprising a single mold of thermoplastic.