Abstract: Improved cathode cans, for use in electrochemical cells. Broadly, the cans comprise corrosion-susceptible core layers, and protective metal layers such as nickel overlying the core layer and disposed between the core layer and a, preferably electroless plated, duplex coating layer such as nickel, which overlies severed edges of the core layer, and also typically overlies the protective metal layers. Thickness of the duplex coating layer is less, preferably no more than 75%, of the thickness of the protective metal layer. Combined thickness of the protective metal layer and duplex coating layer is preferably about 75 microinches (0.002 mm) to 200 microinches (0.005 mm). Thickness of the duplex coating layer alone is preferably about 25 microinches (0.0006 mm) to 100 microinches (0.0025 mm). Combined thickness of the protective metal layer and the duplex coating layer is preferably at least 1.25 times, up to no more than 2 times, thickness of the protective metal layer.

Abstract: This invention pertains to electrochemical cells, and anode cans used therein, wherein edge regions of respective anode cans are toed-in. The anode can includes a top wall, and a first side wall depending downwardly from the top wall. The first side wall has an edge region remote from the top wall. The first side wall comprises a curl at the edge region. The edge region comprises a first portion of the first outer surface on the curl. The first portion of the first outer surface is displaced from a first downward projection of the first outer surface of the first side wall as defined at a maximum perimeter element of the intermediate region. Thus, the edge region is toed-in. Generally, the first side wall follows a path from an intermediate element of the first side wall to a bottom edge of the first side wall, and a reverse curl extending from the bottom edge toward the top wall. The cathode can has a bottom wall, and a second side wall extending upwardly from the bottom wall.