AUTOMOTIVE BATTERY CASE AND METHOD FOR MANUFACTURING SAME

A battery case includes: a battery tray; a plurality of cross frame parts; and an impact absorbing member, wherein the impact absorbing member includes a corrugated portion, wherein the corrugated portion has a plurality of bottom surfaces and a plurality of convex portions; the bottom surfaces of the corrugated portion are each between the convex portions; the convex portion has a top surface, two side surfaces, and two ridge lines; the two side surfaces of the convex portion face each other; the two ridge lines of the convex portion are ridge lines connecting the top surface of the convex portion and the two side surfaces of the convex portion; and the two ridge lines of the convex portion extend in a direction from a second side portion toward a first side portion of the battery tray.