a battery housing for a traction motor battery of a vehicle is disclosed that includes a plurality of elongated impact absorbing carbon fiber reinforced polymer members attached to the walls of the enclosure . the impact absorbing members may be corrugated members that have ridges and furrows connected by ramp surfaces that define trapezoidal spaces relative to the sides of the enclosure . the ridges are designed to be deformed into the trapezoidal space in the event of an impact to absorb impact forces and protect the battery . the impact absorbing members may be retained by t - shaped guides on the outer surface of the walls of the enclosure or may be adhesively attached to the sides of the enclosure .