Patent ID: 11955648
Assignee: LG ENERGY SOLUTION, LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  Y | IPC H

Claim 0:
1. A pouch-type battery case comprising:
a pouch film defining a first cup configured to accommodate an electrode assembly, a side portion at least partially surrounding the first cup, and at least one die edge arranged at a junction of the side portion and a wall of the first cup,
wherein the at least one die edge comprises:
a first rounded region defining a first radius of curvature, the first rounded region arranged to receive an electrode tab extending from the electrode assembly; and
a second rounded region defining one or more second radii of curvature, the one or more second radii of curvature being less than the first radius of curvature,
wherein the second rounded region includes an inner region and an outer region with respect to the first rounded region, and
a radius of curvature of the inner region is different from a radii of curvature of the outer region.