Electricity: electrical systems and devices – Electrolytic systems or devices – Liquid electrolytic capacitor
Reexamination Certificate
2007-09-18
2007-09-18
Thomas, Eric (Department: 2831)
Electricity: electrical systems and devices
Electrolytic systems or devices
Liquid electrolytic capacitor
C361S517000, C029S025030
Reexamination Certificate
active
11422714
ABSTRACT:
An electrical energy storage device such as a wet tantalum electrolytic capacitor or an electrochemical cell such as a lithium/silver vanadium oxide cell is described. The enclosure comprises a drawn casing portion having a planar face wall supporting a surrounding sidewall and is shaped to nest the anode, cathode and intermediate separator components. A mating cover is a stamped planar piece of similar material having a periphery edge welded to the edge of the casing portion surrounding sidewall. In order to prevent heat generated during the welding process from damaging the separator, the anode portion adjacent to the weld site is contoured. This provides sufficient space between the weld and the separator supported on the anode at the contour so that what heat is transmitted to the separator by convection and conduction mechanism will not damage the separator.
REFERENCES:
patent: 5926362 (1999-07-01), Muffoletto et al.
patent: 6212063 (2001-04-01), Johnson et al.
patent: 6801424 (2004-10-01), Nielsen et al.
patent: 7012799 (2006-03-01), Muffoletto et al.
patent: 2005/0041374 (2005-02-01), Seitz et al.
patent: 1 592 031 (2005-11-01), None
Eberhard Doug
Gloss Edward
Lindke Troy
Muffoletto Barry
Nesselbeck Neal
Greatbatch Ltd.
Scalise Michael F.
Thomas Eric
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