Abrasive blasted conductive polymer cathode for use in a wet electrolytic capacitor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01G-002/10
H01G-009/00
H01G-009/04
출원번호
US-0883410
(2010-09-16)
등록번호
US-8605411
(2013-12-10)
발명자
/ 주소
Biler, Martin
Galvagni, John
Dreissig, Dirk H.
Sebald, Zebbie Lynn
Priban, Frantisek
출원인 / 주소
AVX Corporation
대리인 / 주소
Dority & Manning, P.A.
인용정보
피인용 횟수 :
7인용 특허 :
180
초록▼
A wet electrolytic capacitor that includes a porous anode body containing a dielectric layer, an electrolyte, and a cathode containing a metal substrate that is abrasive blasted is provided. Abrasive blasting may accomplish a variety of different purposes. For example, it may result in a surface tha
A wet electrolytic capacitor that includes a porous anode body containing a dielectric layer, an electrolyte, and a cathode containing a metal substrate that is abrasive blasted is provided. Abrasive blasting may accomplish a variety of different purposes. For example, it may result in a surface that is substantially uniform and macroscopically smooth, thereby increasing the consistency of conductive coatings formed thereon. While possessing a certain degree of smoothness, the abrasive blasted surface is nevertheless micro-roughened so that it contains a plurality of pits. The pits provide an increased surface area, thereby allowing for increased cathode capacitance for a given size and/or capacitors with a reduced size for a given capacitance. A conductive coating that contains a substituted polythiophene is disposed on the micro-roughened surface. The presence of the pits on the substrate enhances the degree of contact between the conductive coating and metal substrate, thereby resulting in improved mechanical robustness and electrical performance (e.g., reduced equivalent series resistance and leakage current).
대표청구항▼
1. A wet electrolytic capacitor comprising: a porous anode body that contains a dielectric layer formed by anodic oxidation;a liquid electrolyte;a metal casing within which the anode and the liquid electrolyte are positioned, wherein the metal casing defines an interior surface that contains a plura
1. A wet electrolytic capacitor comprising: a porous anode body that contains a dielectric layer formed by anodic oxidation;a liquid electrolyte;a metal casing within which the anode and the liquid electrolyte are positioned, wherein the metal casing defines an interior surface that contains a plurality of pits formed by abrasive blasting with an abrasive media, wherein the average depth of the pits ranges from about 200 to about 2500 nanometers; anda conductive coating disposed on the interior surface of the casing and within the pits thereof, wherein the conductive coating comprises poly(3,4-ethylenedioxythiophene). 2. The wet electrolytic capacitor of claim 1, wherein the coating has a thickness of from about 0.2 μm to about 50 μm. 3. The wet electrolytic capacitor of claim 1, wherein the anode body includes tantalum, niobium, or an electrically conductive oxide thereof. 4. The wet electrolytic capacitor of claim 1, wherein the metal substrate comprises titanium, tantalum, or a combination thereof. 5. The wet electrolytic capacitor of claim 1, wherein the liquid electrolyte is aqueous. 6. The wet electrolytic capacitor of claim 1, wherein the liquid electrolyte has a pH of from about 4.5 to about 7.0. 7. The wet electrolytic capacitor of claim 1, wherein the liquid electrolyte includes sulfuric acid. 8. The wet electrolytic capacitor of claim 1, wherein the casing is generally cylindrical. 9. A method for forming a wet electrolytic capacitor, the method comprising: propelling an abrasive media against an interior surface of a metal substrate to form a micro-roughened surface having a plurality of pits, wherein the pits have an average depth of from about 200 to about 2500 nanometers;forming a conductive coating on the micro-roughened surface, wherein the conductive coating comprises poly(3,4-ethylenedioxythiophene); andplacing the coated metal substrate into electrical communication with an anode and a liquid electrolyte, wherein the anode is formed from a porous anode body that contains a dielectric layer formed by anodic oxidation, wherein the coated metal substrate is a metal casing, further wherein the anode and liquid electrolyte are positioned within the metal casing. 10. The method of claim 9, wherein the pits have a peak-to-peak distance that ranges from about 30 to about 400 micrometers. 11. The method of claim 9, wherein the abrasive media includes ceramic particles. 12. The method of claim 9, wherein the abrasive media is propelled at a pressure of from about 10 to about 35 pounds per square inch. 13. The method of claim 9, wherein the abrasive media is propelled against the metal substrate for a time of from about 10 to about 30 seconds. 14. The method of claim 9, wherein the abrasive media is propelled through a nozzle. 15. The method of claim 14, wherein the nozzle rotates relative to the substrate. 16. The method of claim 9, wherein the abrasive media is removed from the surface prior to application of the conductive coating. 17. The method of claim 9, wherein the poly(3,4-ethylenedioxythiophene) is formed by in situ polymerization of a thiophene monomer. 18. The method of claim 9, wherein the conductive coating includes a dispersion of particles, the particles including the poly(3,4-ethylenedioxythiophene). 19. The method of claim 9, wherein the metal substrate comprises titanium, tantalum, or a combination thereof.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (180)
Ivey Don C. ; Hoffman Timothy C., Activated carbon for separation of fluids by adsorption and method for its preparation.
Shinozaki, Yasuo; Hiratsuka, Kazuya; Nonaka, Toshiharu; Murakami, Kazuyuki, Activated carbon material, process for producing the same and electric double layer capacitor employing the same.
Hossick Schott,Joachim; Norton,John D.; Rorvick,Anthony W.; May,Steve J., Advanced valve metal anodes with complex interior and surface features and methods for processing same.
Van Alphen Leendert G. (Nijmegen NLX) Slakhorst Justinus W. H. G. (Hengelo NLX) Vogel Pieter M. (Zwolle NLX), Aluminum cathode foil for electrolytic capacitors including a copper content.
Takeuchi Esther S. (East Amherst NY) Pyszczek Michael F. (LeRoy NY), Aqueous blended electrode material for use in electrochemical cells and method of manufacture.
Schott, Joachim Hossick; Melody, Brian; Kinard, John Tony; Norton, John; Viste, Mark; Rorvick, Anthony; Nielsen, Christian, Capacitor and method for producing a capacitor.
Frysz Christine A. ; Frustaci Dominick J. ; Probst Joseph M. ; Thiebolt ; III William C. ; Paulot William M., Chemically machined current collector design.
Koerber Keith Gordon ; McMartin James Michael ; Verbicky ; Jr. John Walter ; Effenberger John ; Drobny J. George, Composites of fluoropolymers with thermally non-adherent non-fluoropolymers and methods for producing the same.
Hannecart Etienne (Tervuren BEX) Destryker Elise (Sint-Pieters-Leeuw BEX), Compositions of electrically conductive polymers derived from substituted or unsubstituted pyrrole and process for obtai.
Nielsen, Christian S.; Viste, Mark Edward; Rorvick, Anthony W.; Haas, David P.; Hossick-Schott, Joachim; Norton, John D.; Bomstad, Tim T.; Casby, Kurt J., Dual-anode electrolytic capacitor for use in an implantable medical device.
Dweik,Badawi M.; Forchione,John W.; Manoukian,Mourad; Kosek,John A.; LaConti,Anthony B.; Evans,David A., Electrochemical-electrolytic capacitor and method of making the same.
Smith Leslie (Towcester GB2) Tew William (Stoke Bruene GB2) Woolley Jack (Haversham GB2), Electrolyte capacitors with improved anode-to-lead connection.
Melody, Brian John; Kinard, John Tony; Van Natta, Jr., Guy Cornelius Scibenas; Harrington, Albert Kennedy; Wheeler, David Alexander, Electrolytic capacitor and separator papers therefor.
Muffoletto,Barry; Stringham,Rodney; Eberhard,Doug; Spaulding,Joseph; Liu,Yanming; Monroe,Don; Ziarniac,Chris; Ziarniac,Eric; Gloss,Edward; O'Connor,Laurie; Elliott,William; Stemen,Eric; Lindke,Troy; , Electrolytic capacitor capable of insertion into the vasculature of a patient.
Nielsen, Christian S.; Viste, Mark Edward; Rorvick, Anthony W.; Haas, David P.; Hossick-Schott, Joachim; Norton, John D.; Bomstad, Tim T.; Casby, Kurt J.; Taylor, William John, Electrolytic capacitor for use in an implantable medical device.
Nielsen, Christian S.; Viste, Mark Edward; Rorvick, Anthony W.; Haas, David P.; Hossick-Schott, Joachim; Norton, John D.; Bomstad, Timothy T.; Casby, Kurt J., Electrolytic capacitor for use in an implantable medical device.
Muffoletto,Barry; Gloss,Edward J.; Eberhard,Douglas; Spaulding,Joseph; Liu,Yanming; Nesselbeck,Neal; Marinaccio,Louis; Stemen,Eric; Stringham,Rodney, Flat back case for an electrolytic capacitor.
O'Phelan, Michael J.; Poplett, James M.; Tong, Robert R.; Iyer, Rajesh; Barr, Alexander Gordon, Flat capacitor having staked foils and edge-connected connection members.
Stevenson Robert A. ; Haskell Donald K. ; Brendel Richard L., Hermetically sealed EMI feedthrough filter capacitor for human implant and other applications.
Hutchins Clinton E. (Pownal VT) Kuzia Eugene W. (Adams MA) Schmidt Phyllis M. (Williamstown MA) Schroeder Walter W. (Williamstown MA), Hermetically sealed aluminum electrolytic capacitor.
Jiang,Naixiong; Marshall,Timothy; Moore,Melissa; Feger,Christopher R.; Strange,Thomas F., High surface area cathode for electrolytic capacitors using conductive polymer.
Nielsen, Christian S.; Miltich, Thomas P.; Breyen, Mark D.; Young, Paul B., Implantable medical device having flat electrolytic capacitor fabricated with laser welded anode sheets.
Miltich, Thomas P.; Pignato, Paul A.; Breyen, Mark D.; Casby, Kurt J.; Johnson, William L., Implantable medical device having flat electrolytic capacitor with cathode/case electrical connections.
Thomas P. Miltich ; Paul A. Pignato ; Mark D. Breyen ; Kurt J. Casby ; William L. Johnson, Implantable medical device having flat electrolytic capacitor with cathode/case electrical connections.
Johnson William L. ; Rorvick Anthony R. ; Breyen Mark D. ; Pignato Paul A. ; Bullock Norma K. ; Lessar Joseph F. ; Ries Andrew J. ; Sparer Randall V. ; Hobot Christopher M. ; Di Domenico Edward ; Roc, Implantable medical device having flat electrolytic capacitor with connector block and sealed feedthroughs.
Lessar Joseph F. ; Bullock Norma K. ; Rorvick Anthony W. ; Breyen Mark D. ; Johnson William L. ; Pignato Paul A., Implantable medical device having flat electrolytic capacitor with consolidated electrode assembly.
Breyen, Mark D.; Jacobs, Andrew Michael; Rorvick, Anthony W.; Pignato, Paul A., Implantable medical device having flat electrolytic capacitor with differing sized anode and cathode layers.
Breyen, Mark D.; Jacobs, Andrew Michael; Rorvick, Anthony W.; Pignato, Paul A., Implantable medical device having flat electrolytic capacitor with differing sized anode and cathode layers.
Breyen,Mark D.; Jacobs,Andrew Michael; Rorvick,Anthony W.; Pignato,Paul A., Implantable medical device having flat electrolytic capacitor with differing sized anode and cathode layers.
Casby Kurt J. ; Breyen Mark D. ; Johnson William L. ; Nutzman Thomas M. ; Rorvick Anthony R., Implantable medical device having flat electrolytic capacitor with laser welded cover.
Kurt J. Casby ; Mark D. Breyen ; William L. Johnson ; Thomas M. Nutzman ; Anthony W. Rorvick ; Thomas P. Miltich, Implantable medical device having flat electrolytic capacitor with laser welded cover.
Breyen Mark D. ; Lessar Joseph F. ; Rorvick Anthony R. ; Pignato Paul A. ; Casby Kurt, Implantable medical device having flat electrolytic capacitor with liquid electrolyte fill tube.
Christian S. Nielsen ; Timothy T. Bomstad ; Mark D. Breyen ; Thomas P. Miltich ; Michael E. Clarke ; Anthony W. Rorvick, Implantable medical device having flat electrolytic capacitor with miniaturized epoxy connector droplet.
Clarke,Michael E.; Miltich,Thomas P.; Breyen,Mark D.; Lessar,Joseph F.; Rorvick,Anthony W.; Pignato,Paul A.; Casby,Kurt J., Implantable medical device having flat electrolytic capacitor with porous gas vent within electrolyte fill tube.
Michael E. Clarke ; Thomas P. Miltich ; Mark D. Breyen ; Joseph F. Lessar ; Anthony W. Rorvick ; Paul A. Pignato ; Kurt J. Casby, Implantable medical device having flat electrolytic capacitor with porous gas vent within electrolyte fill tube.
Rorvick Anthony W. ; Breyen Mark D. ; Johnson William L. ; Pignato Paul ; Lessar Joseph F. ; Bullock Norma K., Implantable medical device having flat electrolytic capacitor with registered electrode layers.
Anthony W. Rorvick ; Mark D. Breyen ; Paul A. Pignato ; Thomas P. Miltich, Implantable medical device having flat electrolytic capacitor with tailored anode layers.
Rorvick, Anthony W.; Breyen, Mark D.; Pignato, Paul A.; Miltich, Thomas P., Implantable medical device having flat electrolytic capacitor with tailored anode layers.
Norton, John D.; Hossick Schott, Joachim; Viste, Mark Edward; Melody, Brian John; Kinard, John Tony, Method for fabricating a medical device that includes a capacitor that does not require oxide reformation.
Muffoletto, Barry C.; Shah, Ashish; Stephenson, Donald H., Method for improving electrical conductivity of a metal oxide layer on a substrate utilizing high energy beam mixing.
Barry C. Muffoletto ; Ashish Shah ; Neal N. Nesselbeck, Method for preparation of a thermal spray coated substrate for use in an electrical energy storage device.
Christine A. Frysz ; Dominick J. Frustaci ; Joseph M. Probst ; William C. Thiebolt, III ; William M. Paulot, Method for providing a chemically machined current collector.
Barry C. Muffoletto ; Rodney E. Stringham ; Neal N. Nesselbeck ; Ashish Shah ; Donald H. Stephenson, Method for providing a hermetically sealed capacitor.
Yan Jenn-Feng ; Pignato Paul A. ; Rorvick Anthony R. ; Kraska Robert E., Method of making a vacuum-treated liquid electrolyte-filled flat electrolytic capacitor.
Yan Jenn-Feng ; Pignato Paul A. ; Rorvick Anthony R. ; Kraska Robert E., Method of making an hermetically sealed implantable medical device having a vacuum-treated liquid electrolyte-filled flat electrolytic capacitor.
Breyen Mark D. ; Rorvick Anthony R. ; Pignato Paul ; Lessar Joseph F., Method of making an implantable medical device having a flat electrolytic capacitor.
Nielsen, Christian S.; Bomstad, Timothy T.; Breyen, Mark D.; Miltich, Thomas P.; Clarke, Michael E.; Rorvick, Anthony W., Method of making an implantable medical device having a flat electrolytic capacitor with miniaturized epoxy connector droplet.
Norton, John D.; Rorvick, Anthony W.; Breyen, Mark D.; Pignato, Paul A.; Miltich, Thomas P., Methods of applying separator members to an electrode of a capacitor.
Norton,John D.; Rorvick,Anthony W.; Breyen,Mark D.; Pignato,Paul A.; Miltich,Thomas P., Methods of applying separator members to an electrode of a capacitor.
Muffoletto,Barry; O'Connor,Laurie, Molded polymeric cradle for containing an anode in an electrolytic capacitor from high shock and vibration conditions.
Reynolds, John R.; Zong, Kyukwan; Stenger-Smith, John D.; Anderson, Nicole; Webber, Cynthia K.; Chafin, Andrew P., Poly (3,4-alkylenedioxythiophene)-based capacitors using ionic liquids as supporting electrolytes.
Gloss,Edward; Stringham,Rodney; Druding,J. Michael; Muffoletto,Barry, Polymeric restraints for containing an anode in an electrolytic capacitor from high shock and vibration conditions.
Gan, Hong; Takeuchi, Esther S.; Rubino, Robert S., Process for fabricating continuously coated electrodes on a porous current collector and cell designs incorporating said electrodes.
Takeuchi Esther S. (Williamsville NY) Mead Ralph T. (Kenmore NY) Post Clifford J. (Amherst NY), Process for making cathode components for use in electrochemical cells.
Sarangapani Srinivasan (Walpole MA) Lessner Philip M. (Watertown MA) LaConti Anthony B. (Lynnfield MA), Proton exchange membrane electrochemical capacitors.
Brow Richard K. (Albuquerque NM) McCollister Howard L. (Albuquerque NM) Phifer Carol C. (Albuquerque NM) Day Delbert E. (Rolla MO), Sealing glasses for titanium and titanium alloys.
Kudoh Yasuo,JPX ; Akami Kenji,JPX ; Kojima Toshikuni,JPX ; Matsuya Yasue,JPX ; Shimada Hiroshi,JPX ; Hayashi Chiharu,JPX, Solid electrolytic capacitors comprising a conductive layer made of a polymer of pyrrole or its derivative.
Gaffney, Kevin M.; Casby, Kurt J.; Hossick-Schott, Joachim; Norton, John D.; Rodgers, Angela M; Hulting, Karen J, Tantalum anodes for high voltage capacitors employed by implantable medical devices and fabrication thereof.
Seitz,Keith; Shah,Ashish; Muffoletto,Barry; Neff,Wolfram; Eberhard,Douglas, Use of poly(alkylene) carbonates in the manufacture of valve metal anodes for electrolytic capacitors.
Druding, J. Michael; Eberhard, Douglas P.; Hahl, Jason; Liu, Yanming; Monroe, Donald; Muffoletto, Barry C.; Gloss, Edward J., Wet tantalum capacitor with multiple anode connections.
Eidelman, Alex; Vaisman, Pavel; Shilo, Gabi; Petukhov, Evgeny; Mitiagin, Andrey, Volumetric efficiency wet electrolyte capacitor having a fill port and terminations for surface mounting.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.