In one embodiment, a cap for an energy storage cell is provided, the cap including: a body including a dome formed therein, the dome including a through-way; and, an electrode assembly including a hemispherically shaped electrical insulator surrounding an electrode; wherein the insulator is disposed
In one embodiment, a cap for an energy storage cell is provided, the cap including: a body including a dome formed therein, the dome including a through-way; and, an electrode assembly including a hemispherically shaped electrical insulator surrounding an electrode; wherein the insulator is disposed in and hermetically seals the dome and the electrode is electrically separated from the body by the throughway. A method of manufacture and an energy storage cell are also disclosed.
대표청구항▼
1. A cap for an energy storage cell, the cap comprising: a metallic body comprising a dome with a first shape, the metallic body having a hole therethrough;a non-metallic insulator with a second shape having at least a portion disposed within the dome, said portion substantially conforming to the fi
1. A cap for an energy storage cell, the cap comprising: a metallic body comprising a dome with a first shape, the metallic body having a hole therethrough;a non-metallic insulator with a second shape having at least a portion disposed within the dome, said portion substantially conforming to the first shape to form an interference fit between the portion and an inner surface of the dome,wherein the insulator is made from a compressible material and includes a through way passing through the insulator; andan electrode extending through the through way and the hole, wherein the insulator is compressed to form a hermetic seal between the insulator and dome and a hermetic seal between the insulator and electrode. 2. A cap as defined in claim 1, wherein the insulator comprises a substantially hemispherical element or a substantially spherical element. 3. A cap for an energy storage cell as defined in claim 2, wherein the electrode is electrically separated from the body. 4. The cap as in claim 3, further comprising a retainer coupled to the body, the retainer adapted for retaining the insulator against the dome and ensuring the hermetic seal between the insulator and the dome. 5. The cap as in claim 4, wherein the retainer is bonded to the body by at least one of welding, stamping and brazing. 6. The cap as in claim 1, wherein the insulator comprises at least one of perfluoroalkoxy polymer, fluorinated ethylene-propylene, polyvinylfluoride, tetrafluoroethylene, chlorotrifluoroethylene, polychlorotrifluoroethylene, polyethylenetetrafluoroethylene, polyethylenechlorotrifluoroethylene, polytetrafluoroethylene and another fluoropolymer based material. 7. The cap as in claim 1, wherein at least one of the body and the electrode comprise one of aluminum, an alloy of aluminum, aluminum clad onto a least one other material and a passivated material. 8. The cap as in claim 1, wherein at least one of the body and the electrode comprise a material that has been treated to reduce electrochemical interaction with an electrolyte. 9. An energy storage cell comprising: a housing body comprising an energy storage media disposed therein; andat least a first cap comprising: a metallic body comprising a dome with a first shape, the metallic body having a hole therethrough; a non-metallic insulator with a second shape having at least a portion disposed within the dome, said portion substantially conforming to the first shape to form an interference fit between the portion and an inner surface of the dome,wherein the insulator is made from a compressible material and includes a through way passing through the insulator; andan electrode extending through the through way and the hole,wherein the insulator is compressed to form a hermetic seal between the insulator and dome and between the insulator and electrode, andwherein the first cap and the housing body are hermetically sealed to each other. 10. The energy storage cell as in claim 9, wherein the energy storage media comprises at least one electrode comprising a carbon bearing material. 11. The energy storage cell as in claim 9, wherein the energy storage media comprises at least one of activated carbon and carbon nanotubes. 12. The energy storage cell as in claim 9, wherein the energy storage media comprises an electrochemical double-layer capacitor. 13. The energy storage cell as in claim 9, wherein at least one of the body and the cap comprise one of aluminum, an alloy of aluminum, aluminum clad onto a least one other material and a passivated material. 14. The energy storage cell as in claim 9, wherein the energy storage material in contained in a hermitically sealed housing comprising the housing body and the first cap, and wherein the hermitically sealed housing in configured to have a leak rate of less than less than 5×10−6 std cc He/sec. 15. The energy storage cell as in claim 14, wherein the housing comprises at least a second cap, the second cap comprising: a metallic body comprising a dome with a first shape, the metallic body having a hole therethrough, and a non-metallic insulator with a second shape having at least a portion disposed within the dome, said portion substantially conforming to the first shape to form an interference fit between the portion and an inner surface of the dome,wherein the insulator is made from a compressible material and includes a through way passing through the insulator; andan electrode extending through the through way and the hole of the second cap,wherein the insulator is compressed to form a hermetic seal between the insulator and dome and between the insulator and electrode, andwherein the second cap and the housing body are hermetically sealed to each other. 16. The cap as in claim 1, wherein the hermetic seal between the insulator and dome and the hermetic seal between the insulator and electrode are each configured to have a leak rate of less than 5×10−6 std cc He/sec. 17. The cap as in claim 1, wherein the metallic body comprises aluminum. 18. The cap as in claim 1, wherein the metallic body consists essentially of aluminum or an aluminum alloy. 19. The cap as in claim 1, wherein the metallic body consists essentially of aluminum.
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이 특허에 인용된 특허 (6)
Cooley, John J; Signorelli, Riccardo; Deane, Christopher J S; Epstein, James, Aluminum housing with a hermetic seal.
Aamodt, Paul B.; Bartley, Franise D.; Bruesehoff, Steve M.; Casby, Kurt J.; Haas, David P.; Hokanson, Karl E.; Nutzman, Thomas M.; Ries, Andrew J.; Robinson, Scott J.; Roles, Randy S.; Somdahl, Sonja, Contoured battery for implantable medical devices and method of manufacture.
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