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US 6,850,405 B1Granted
Dual anode capacitor interconnect design
AssigneeWilson Greatbatch Technologies, Inc.
InventorsRichard Mileham, Eric Stemen, Laurie O'Connor, William Elliott, Joseph E. Spaulding, Barry C. Muffoletto, Douglas Eberhard
Life of this patent
Estimating the term…
Abstract
New designs that provide two anodes and their associated feedthroughs incorporated into one capacitor are described. The feedthrough wires can be in their own glass-to-metal seal or, they can be combined into one glass-to-metal seal as long as they are electrically insulated from each other. One embodiment has the anode feedthroughs left unconnected, while in other embodiments; they are joined externally of the capacitor casing. Several interconnect designs are described.
Claims27
A capacitor, which comprises:
- a) a casing;
- b) a first anode electrically connected to a first feedthrough extending outside the casing, wherein the first feedthrough is insulated from the casing;
- c) a second anode electrically connected to a second feedthrough extending outside the casing, wherein the second feedthrough is insulated from the casing and wherein the first and second anodes are connected to a common terminal external of the casing;
- d) a cathode of a cathode active material facing at least a portion of each of the first and second anodes;
- and
- e) an electrolyte operatively associating the cathode active material with the first and second anodes housed inside the casing.
3 more elements
A method for providing a capacitor, comprising the steps of:
- a) providing a casing comprising a first casing portion and a second casing portion;
- b) positioning a first anode inside the first casing portion, the first anode having a first feedthrough electrically connected thereto and extending outside the first casing portion and including insulating the first feedthrough from the first casing portion;
- c) positioning a second anode inside the second casing portion, the second anode having a second feedthrough electrically connected thereto and extending outside the second casing portion and including insulating the second feedthrough from the second casing portion;
- d) positioning a cathode of a cathode active material inside at least one of the first and second casing portions;
- e) securing the first casing portion to the second casing portion to provide an enclosure containing the first and second anodes and the cathode;
- and
- f) providing an electrolyte inside the casing to operatively associate the cathode with the first and second anodes.
4 more elements
A capacitor, which comprises:
- a) a casing;
- b) a first anode electrically connected to a first feedthrough extending outside the casing, wherein the first feedthrough is insulated from the casing;
- c) a second anode electrically connected to a second feedthrough extending outside the casing, wherein the second feedthrough is insulated from the casing;
- d) a cathode of a cathode active material facing at least a portion of each of the first and second anodes, wherein the casing is the terminal for the cathode;
- and
- e) an electrolyte operatively associating the cathode active material with the first and second anodes housed inside the casing.
3 more elements
A capacitor, which comprises:
- a) a casing;
- b) a first anode electrically connected to a first feedthrough extending outside the casing, wherein the first feedthrough is insulated from the casing;
- c) a second anode electrically connected to a second feedthrough extending outside the casing, wherein the second feedthrough is insulated from the casing and wherein the feedthroughs for the first and second anodes are isolated from the casing by respective glass-to-metal seals;
- d) a cathode of a cathode active material facing at least a portion of each of the first and second anodes;
- and
- e) an electrolyte operatively associating the cathode active material with the first and second anodes housed inside the casing.
3 more elements
A capacitor, which comprises:
- a) a casing;
- b) a first anode electrically connected to a first feedthrough extending outside the casing, wherein the first feedthrough is insulated from the casing;
- c) a second anode electrically connected to a second feedthrough extending outside the casing, wherein the second feedthrough is insulated from the casing and wherein the feedthroughs for the first and second anodes are spaced apart from each other but isolated from the casing by a single glass-to-metal seal;
- d) a cathode of a cathode active material facing at least a portion of each of the first and second anodes;
- and
- e) an electrolyte operatively associating the cathode active material with the first and second anodes housed inside the casing.
3 more elements
A capacitor, which comprises:
- a) a casing comprising first and second portions, the first portion having a first face wall extending to a surrounding first sidewall and the second portion having a second face wall extending to a surrounding second sidewall, wherein the first and second sidewalls are secured together to provide the casing;
- b) a first anode electrically connected to a first feedthrough extending outside the casing, wherein the first feedthrough is insulated from the casing;
- c) a second anode electrically connected to a second feedthrough extending outside the casing, wherein the second feedthrough is insulated from the casing;
- d) a cathode current collector disposed intermediate the first and second anodes, the cathode current collector having opposed first and second major faces provided with cathode active material facing at least a portion of each of the first and second anodes:
- and
- e) an electrolyte operatively associating the cathode active material with the first and second anodes housed inside the casing.
3 more elements
A capacitor, which comprises:
- a) a casing;
- b) a first anode comprising tantalum and electrically connected to a first feedthrough extending outside the casing, wherein the first feedthrough is insulated from the casing;
- c) a second anode comprising tantalum and electrically connected to a second feedthrough extending outside the casing, wherein the second feedthrough is insulated from the casing;
- d) a cathode of a cathode active material comprising ruthenium and facing at least a portion of each of the first and second anodes;
- and
- e) an electrolyte operatively associating the cathode active material with the first and second anodes housed inside the casing.
3 more elements
Dependencies are inferred from the claim text.