Patent ID: 6402793
Filing Date: 2002-06-11
Classification: A61N,Y10T

Abstract:
A method of fabricating an electrolytic capacitor comprising:providing a capacitor case defining an interior case chamber bounded by a case wall, the case further comprising a case base with a case side wall extending from the case base to a side wall upper opening edge and a cover adapted to be hermetically sealed at a cover edge against the side wall upper opening edge to enclose the interior case chamber; forming an anode terminal passageway through said case wall; forming a cathode terminal passageway through said case wall; forming an electrode stack assembly adapted to be located within the interior case chamber, the electrode stack assembly further comprising a plurality of capacitor layers stacked in registration upon one another, each capacitor layer comprising a cathode layer having a cathode tab, an anode sub-assembly comprising at least one anode layer having an anode tab, and a separator layer located between adjacent anode and cathode layers, whereby all adjacent cathode layers and anode layers of the stack are electrically insulated from one another by a separator layer; providing an anode terminal; coupling a first anode terminal end of an anode terminal electrically and mechanically with a plurality of said anode tabs; extending a second anode terminal end of said anode terminal through said anode terminal passageway; supporting said anode terminal extending through said anode terminal passageway while electrically insulating said anode terminal from said case wall thereby locating an anode connection terminal at said second anode terminal end exterior to said case wall; providing a cathode terminal; coupling a first cathode terminal end of a cathode terminal electrically and mechanically with a plurality of said cathode tabs extending a second cathode terminal end of said cathode terminal through said cathode terminal passageway; electrically and mechanically sealing said cathode terminal into said cathode terminal passageway to seal said cathode terminal passageway thereby making electrical connection of said cathode tabs with said case wail and providing a cathode connection terminal at or coupled to the exterior surface of the case wall; and attaching a connector assembly to said anode connection terminal to make electrical connection with said anode tabs and to said cathode connection terminal to make electrical connection with said cathode tabs.