Patent ID: 8920964

Claim:
A rechargeable battery comprising: an electrode assembly; a can housing the electrode assembly and having an open end, a bottom surface substantially opposite to the open end, a first planar surface, and a second planar surface, wherein the first planar surface and the second planar surface each have a first fracture portion and a second fracture portion that facilitates buckling of the can under compression, wherein the first planar surface has a first fold portion extending along a first axis and spaced from the first fracture portion and the second fracture portion of the first planar surface, wherein the first axis is defined extending from the bottom surface to the open end, wherein the second fracture portion of the first planar surface and of the second planar surface is located proximate to the open end of the can and extends along a second axis in a direction perpendicular to the first axis, wherein the first fracture portion of the first planar surface and of the second planar surface is located proximate to and spaced from the bottom surface of the can; and a cap plate sealing the open end of the can.