Patent ID: 8916284

Claim:
A battery pack comprising: a battery cell including an electrode assembly of a cathode/separator/anode structure; a cell case having a receiving part for housing the battery cell, the cell case being in contact with the battery cell; and a pack case formed about the cell case; wherein the cell case that is made of a laminate sheet including a resin layer and a metal layer is provided, at a predetermined region of the cell case corresponding to an upper end interface of the electrode assembly while the electrode assembly is mounted in the receiving part, with a small groove adjacent electrode taps for pressing against the upper end of the electrode assembly to prevent an upward movement of the electrode assembly and stably maintain the electrode assembly in position when an external force is applied thereto, the small groove continuously extending along and being in parallel with the upper end of the electrode assembly, wherein an inner surface of the cell case is protruded toward the upper end interface of the electrode assembly to form the small groove, and wherein the battery pack has a coolant flow channel defined by the small groove between the battery cell and the inner surface of the pack case.