Patent ID: 7072171

Claim:
A capacitor, which comprises: a) a casing having a cylindrical casing sidewall extending to closed first and second end walls; b) at least one anode comprising a radiused anode sidewall extending to first and second anode end walls; c) a cathode comprising at least one conductive substrate having first and second major faces, at least one of which supports a cathode active material, wherein the conductive substrate curves around the anode sidewall, but is prevented from contact therewith by an intermediate separator to thereby form an electrode assembly housed inside the casing; d) a working electrolyte contained inside the casing; e) wherein the anode is connected to an anode terminal electrically isolated from a cathode terminal; and f) wherein the casing is hermetically sealed by one of an electrolyte fill opening provided with a plug sealed to the casing sidewall or with an electrolyte fill opening through the casing sidewall having the sidewall fused to itself.