A battery enclosure for the battery of an electric vehicle is disclosed that is provided with cylindrical impact absorbing tubular members. The tubular members are arrayed about the battery enclosure between an inner wall and an outer wall in a spaced relationship. The tubular members are spaced from each other and include internal reinforcing walls that stiffen the battery enclosure and absorb impact loads. The reinforcing walls may be in an X-shaped, Y-shaped or parallel and may be oriented to absorb impact loads to a greater or lesser extent.