Patent ID: 7901808

Claim:
An apparatus, comprising: a stack of substantially planar battery electrode layers, the stack including a first electrode layer including a first tab and a second electrode layer including a second tab, with the first tab electrically connected to the second tab; first and second separator layers sandwiching the first electrode layer, with the edges of the first and second separator layers connected with a welded portion of the first and second separator layers, the welded portion circumscribing one or more non-tabbed edge portions of the first electrode layer defining an opening through which the first tab extends; a seal including a film disposed over the opening and connecting the first and second separator layers about the first tab; a battery housing including at least one feedthrough aperture; a feedthrough conformed and sealed to the feedthrough aperture; and electrolyte disposed in the battery housing, wherein the first and second separator layers are each adapted to melt to resist ionic transport at a predetermined melting temperature.