Patent ID: 7405014
Filing Date: 2008-07-29
Classification: H01M

Abstract:
1. A metal-air cell comprising: at least one air entry port along an exterior surface of the cell; and a tab system that covers the at least one air entry port, the tab system comprising at least a first polymer layer, a second polymer layer, a first adhesive layer disposed between the exterior surface of the metal air cell and the first polymer layer, and a second adhesive layer between the first polymer layer and the second polymer layer, wherein: the first polymer layer and the second polymer layer are both biaxially oriented; the tab system has a loss stiffness that is from about 25,000 N/m to less than about 55,000 N/m at 20° C. to 25° C.; the tab system has an oxygen permeability of from about 50 (cm the cell comprises zero added mercury.