Patent ID: 7749648
Filing Date: 2010-07-06
Classification: B29L,H01M,Y02E

Abstract:
1. A pouch for a secondary battery, the pouch comprising: a container for containing an electrode assembly and comprising a first laminated sheet including a first adhesive layer; and a cover for covering and sealing the container and comprising a second laminated sheet including a second adhesive layer, the second adhesive layer adapted to face the first adhesive layer when the cover is covering the container; wherein each of the first adhesive layer and the second adhesive layer comprises at least one indentation defining an increased adhesive space between the first laminated sheet and the second laminated sheet such that excess adhesive in the at least one indentation in the first adhesive layer contacts the excess adhesive in the second adhesive layer along substantially an entire width of the indentations, the at least one indentation on the first adhesive layer protruding away from the second adhesive layer and the at least one indentation on the second adhesive layer protruding away from the first adhesive layer.