Patent ID: 8551642

Claim:
A method, comprising: positioning a first electrode layer between a bottom and top separator layer, the first electrode layer including a first tab, the bottom and top separator layer including porous polyethylene and porous polypropylene; positioning a sealing element adjacent the top layer and along a non-tabbed portion of the first electrode layer; melting together the top and bottom separator layers with the sealing element to define an opening through which the first tab extends; sealing the tabbed portion of the first electrode layer to the top and bottom separator layers by disposing a film onto the first tab and the top separator layer, over the opening; disposing the first electrode, sealed between the top and bottom separator layer, into a capacitor stack with other electrodes; disposing the capacitor stack into a housing including a feedthrough aperture; disposing a feedthrough through the feedthrough aperture; connecting the feedthrough to the stack; sealing the feedthrough to the feedthrough aperture; and disposing electrolyte in the housing, the electrolyte in communication with the first electrode and the other electrodes for sustaining ionic transfer through at least one of the top and bottom separator layers and between the first electrode and at least one of the other electrodes.