Solid Electrolytic Capacitor (e.g., Dry Electrolytic Capacitor) Patents (Class 361/523)
  • Patent number: 8422198
    Abstract: There is provided an electric double layer capacitor package and a method of manufacturing the same. The electric double layer capacitor package includes an exterior case formed of insulating resin and having therein one or more partitions providing a plurality of housing spaces; a plurality of capacitor cells disposed in the plurality of housing spaces, respectively, each capacitor cell including first and second electrodes and a separator interposed between the first and second electrodes; and an internal series-connection terminal buried in each of the partitions and connecting the plurality of capacitor cells in series.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: April 16, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Kyun Lee, Jung Eun Noh, Bae Kyun Kim
  • Patent number: 8422199
    Abstract: The present invention provides an electrolyte highly reliable in charge and discharge in a high voltage condition, and an electrochemical capacitor using the same. The electrolyte of the present invention includes a solvent, an electrolyte salt having an anion having a perfluoro alkyl group represented by a following composition formula, and an acid inducing substance having a fluorine atom for an anion, characterized in that the weight ratio of the acid inducing substance is in a range of 0.0001 to 2.0 wt %: MX+[Q(Rf)yFz]X? (wherein Q is a group 13 or group 15 element in the periodic table, Rf is a perfluoro alkyl group (CnF2n+1), n is a natural number, 1?y<6, 1?z<6, MX+ is a cation of Xth valence, and X is a natural number from 1 to 3).
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: April 16, 2013
    Assignee: Panasonic Corporation
    Inventors: Shotaro Doi, Atsuro Shirakami, Kiyohiro Isii, Susumu Nomoto, Hideki Shimamoto
  • Patent number: 8422200
    Abstract: A solid capacitor having an embedded electrode includes a substrate unit, a first conductive unit, a second conductive unit, a first insulative unit, a third conductive unit, a second insulative unit, and an end electrode unit. The substrate unit includes a substrate body and a conductive body embedded into the substrate body. The substrate body has a lateral opening and a plurality of top openings, and the conductive body has a lateral conductive area exposed from the lateral opening and a plurality of top conductive areas respectively exposed from the top openings. The first conductive unit includes a plurality of first conductive layers respectively covering the top conductive areas. The second conductive unit includes a second conductive layer covering the first conductive layers. The porosity rate of the second conductive layer is larger than that of each first conductive layer.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: April 16, 2013
    Assignees: Inpaq Technology Co., Ltd., Apaq Technology Co., Ltd.
    Inventors: Wei-Chih Lee, Ming-Tsung Chen
  • Publication number: 20130089790
    Abstract: A self-supporting carbon electrode can include, or consist essentially of, nanostructured carbon, for example, oxygen-functionalized nanostructured carbon.
    Type: Application
    Filed: October 11, 2011
    Publication date: April 11, 2013
    Inventors: Hye Ryung Byon, Seung Woo Lee, Betar Gallant, Yang Shao-Horn, Paula Hammond, Nasim Hyder
  • Patent number: 8411417
    Abstract: A solid electrolytic condenser includes a condenser element, an anode wire including one end inserted into the condenser element, a cathode drawing layer formed on outer side of the condenser element, terminal reinforcements arranged respectively under opposite side portions of a bottom surface of the condenser element, a liquid epoxy resin filled in spaces between the terminal reinforcements and between the bottom surface of the condenser element and top surfaces of the terminal reinforcements, a molding part surrounding the condenser element while exposing the other end of the anode wire, an end portion of the cathode drawing layer, and bottom surfaces of the terminal reinforcements, and anode and cathode terminals formed by a plating layer provided on the bottom surfaces of the terminal reinforcements and on opposite side surfaces of the molding part. The liquid epoxy resin includes fillers of a smaller size than those in the molding part.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: April 2, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Kwang Kim, Kwan Hyeong Kim, Jun Suk Jung, Jae Yik Howang, Chong Hoon Pak, Jae Jun Park
  • Patent number: 8404126
    Abstract: A resist layer is formed over one surface of a current-collector material, while a resist layer having a predetermined pattern is formed on the other surface of the current-collector material. Through-holes are formed on the current-collector material through an etching process. An electrode slurry is applied onto the current-collector material formed with the through-holes without removing the resist layers. Specifically, since the through-holes are closed by the resist layer, the electrode slurry does not pass through the through-holes to leak out. Therefore, the current-collector material can be conveyed in the horizontal direction, whereby the productivity of an electrode can be enhanced. The resist layers are made of PVdF, and the resist layers are removed in a heating and drying step in which the PVdF is dissolved.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: March 26, 2013
    Assignee: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Nobuo Ando, Mitsuru Nagai
  • Patent number: 8405958
    Abstract: The present invention provides a conductive polymer suspension for providing a conductive polymer material having high conductivity and a method for producing the same, and particularly provides a solid electrolytic capacitor having low ESR and a method for producing the same. In an emulsion comprising a dopant of a low molecular organic acid or a salt thereof, obtained by emulsifying a monomer providing a conductive polymer, using a nonionic surfactant, in a water, the monomer is subjected to chemical oxidative polymerization, using an oxidant, to synthesize a conductive polymer. The obtained conductive polymer is purified, and then, the purified conductive polymer and an oxidant are mixed in an aqueous solvent containing a polyacid component to produce a conductive polymer suspension.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: March 26, 2013
    Assignee: NEC Tokin Corporation
    Inventors: Naoki Takahashi, Tomoki Nobuta, Yasuhisa Sugawara, Yuji Yoshida, Satoshi Suzuki, Yasuhiro Tomioka
  • Publication number: 20130070392
    Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current for high nominal voltages, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.
    Type: Application
    Filed: October 26, 2012
    Publication date: March 21, 2013
    Applicant: Heraeus Precious Metals GmbH & Co. KG
    Inventor: Heraeus Precious Metals GmbH & Co. KG
  • Publication number: 20130058010
    Abstract: A metal current collector including a metal substrate having grooves formed along a triple junction line of a surface thereof and a conductive layer formed on the metal substrate, a method for preparing the same, and electrochemical capacitors with same. A metal current collector including a metal substrate having grooves formed along a triple junction line of a surface thereof and a conductive layer formed on the metal substrate has a large surface area and low electrical resistance. This metal current collector can be effectively used in electrochemical capacitors with high capacity and high output characteristics by improving contact characteristics with an active material layer.
    Type: Application
    Filed: May 24, 2012
    Publication date: March 7, 2013
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hak Kwan Kim, Jun Hee Bae, Bae Kyun Kim
  • Patent number: 8390988
    Abstract: The disclosure describes a monomer having the general formula (I): in which R1 and R2 stand, independently of one another, for hydrogen, for an optionally substituted C1-C20-alkyl group or C1-C20-oxyalkyl group, optionally interrupted by 1 to 5 oxygen atoms and/or sulfur atoms, or jointly for an optionally substituted C1-C20-dioxyalkylene group or C6-C20-dioxyarylene group. The monomer has a color in a range of a Hazen color number determined according to test method described herein of at least 20 to a Gardner color number determined according to test method described herein of not more than 5. The present invention also relates to a method for the manufacture of a capacitor, a capacitor obtained by this method and to the use of a monomer.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: March 5, 2013
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Udo Merker, Klaus Wussow, Knud Reuter, Andreas Elschner
  • Patent number: 8390991
    Abstract: A stacked solid state solid electrolytic capacitor includes a plurality of capacitor units, a substrate unit and a package unit. The substrate unit includes a positive guiding substrate and a negative guiding substrate. The positive guiding substrate has a positive exposed end integrally extended therefrom along a first predetermined direction. The negative guiding substrate has a first negative exposed end integrally extended therefrom along a second predetermined direction, a second negative exposed end integrally extended therefrom along a third predetermined direction, and a third negative exposed end integrally extended therefrom along a fourth predetermined direction. The first, the second, the third and the fourth predetermined directions are different. The capacitor units are stacked on top of one another and disposed on the negative guiding substrate. The package unit encloses the capacitor units, one part of the positive and one part of the negative guiding substrate.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: March 5, 2013
    Assignee: Apaq Technology Co., Ltd.
    Inventors: Chi-Hao Chiu, Yui-Shin Fran, Ching-Feng Lin, Chun-Chia Huang, Chun-Hung Lin, Wen-Yen Huang
  • Patent number: 8388865
    Abstract: A conductive polymer composition with excellent water resistance and conductivity, and a solid electrolytic capacitor with low ESR, excellent reliability, and especially moisture resistance. The conductive polymer composition includes a conductive polymer, a polyanion that includes a hydrophilic group, where the polyanion functioning as a dopant of the conductive polymer. At least a part of the hydrophilic group of the polyanion is condensed with an epoxy group in a compound with one epoxy group. A solid electrolytic capacitor of the present invention includes the conductive polymer composition.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: March 5, 2013
    Assignee: NEC Tokin Corporation
    Inventors: Yasuhisa Sugawara, Tomoki Nobuta, Naoki Takahashi, Ryuta Kobayakawa, Satoshi Suzuki
  • Patent number: 8390989
    Abstract: A solid electrolytic capacitor that is able to maintain a high capacitance and low ESR, and also exhibits a high degree of heat resistance. The solid electrolytic capacitor 10 comprises at least an anode body 11 composed of a porous material, a dielectric layer 12 formed on the surface of the anode body 11, and a cathode body 13b, wherein the solid electrolytic capacitor has a solid electrolyte layer 13a formed in contact with the dielectric layer 12, the solid electrolyte layer 13a comprises at least a hydroxy compound having three or more hydroxyl groups, and the hydroxy compound has a melting point of not less than 170° C.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: March 5, 2013
    Assignee: Shin-Etsu Polymer Co., Ltd.
    Inventors: Tailu Ning, Michiko Shingai, Sachiko Ode
  • Patent number: 8390986
    Abstract: Provided is a high power super capacitor including: a bobbin; an electrode assembly being wound into the bobbin to be in a jellyroll type; a conductive connection member being formed in each of one end and another end of the electrode assembly using electric energy; and a plug being inserted into each of one end and another end of the bobbin, and being bonded with the conductive connection member using electric energy to be electrically connected to the electrode assembly.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: March 5, 2013
    Assignee: Samhwa Capacitor Co., Ltd.
    Inventors: Young Joo Oh, Jung Rag Yoon, Kyung Min Lee, Sang Won Lee
  • Publication number: 20130050903
    Abstract: Electrodes and electrochemical capacitors including the same including an electrode active material layer having two layers or more formed on a current collector, wherein the electrode active material layer has a gradient of the specific surface area value to the electric conductivity along a thickness direction of a current collector. Exemplary embodiments manufacture the electrodes having the gradient of the specific surface area value to the electricity conductivity along the thickness direction of the current collector by forming the electrode active material layer having compositions in which a kind of electrode active materials and conductive materials are different along the thickness direction of the current collector. The exemplary embodiments can increase the capacitance of the electrochemical capacitor including the electrode and lower the electric resistance thereof, by appropriately controlling the resistance and capacitance value of the electrode.
    Type: Application
    Filed: May 10, 2012
    Publication date: February 28, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hak Kwan KIM, Jun Hee Bae, Bae Kyun Kim, Ho Jin Yun
  • Publication number: 20130049692
    Abstract: A reversible storage system for electric energy, including charging or discharging surfaces as a positive collector terminal and a charging or discharging area as a negative collector terminal and a flow electrode with a pumpable dispersion with particles storing electric energy and at least one supply line and at least one drain line for the pumpable dispersion. The pumpable dispersion includes particles storing electric energy in a capacitive and/or chemical fashion, having an average grain size distribution: 1 nM to 500 ?m. For chemically storing particles, the negative and the positive collector terminals have a planar shape with a single exterior closed border and with their planar sides each contacting an ion-selective diaphragm or spacers, and the pumpable dispersion is arranged on a side facing away from the planar side of the respective collector, contacting the ion-selective diaphragm or spacers, and the dispersion at least partially penetrates the respective collector.
    Type: Application
    Filed: August 29, 2011
    Publication date: February 28, 2013
    Applicant: ARYS GMBH
    Inventor: Bernd Kuhs
  • Publication number: 20130052528
    Abstract: An electrode and a power storage device each of which achieves better charge-discharge cycle characteristics and is less likely to deteriorate owing to separation of an active material, or the like are manufactured. As the electrode for the power storage device, an electrode including a current collector and an active material layer that is over the current collector and includes a particle containing niobium oxide and a granular active material is used, whereby the charge-discharge cycle characteristics of the power storage device can be improved. Moreover, contact between the granular active material and the particle containing niobium oxide makes the granular active material physically fixed; accordingly, deterioration due to expansion and contraction of the active material which occur along with charge and discharge of the power storage device, such as powdering of the active material layer or its separation from the current collector, can be suppressed.
    Type: Application
    Filed: August 28, 2012
    Publication date: February 28, 2013
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kazutaka KURIKI, Kiyofumi OGINO, Nobuhiro INOUE
  • Patent number: 8385051
    Abstract: Provided are an electrode structure which is excellent in adhesiveness between an aluminum material as a base material and a dielectric layer and adhesiveness between the dielectric layers and allows a higher capacitance than the conventional one to be obtained, even when a thickness of the dielectric layer is thick; a method for manufacturing the above-mentioned electrode structure; and a capacitor and a battery, each of which includes the above-mentioned electrode structure. An electrode structure comprises: an aluminum material; a dielectric layer formed on a surface of the aluminum material; and an interposing layer formed in at least one part of a region of the surface of the aluminum material between the aluminum material and the dielectric layer and including aluminum and carbon, the dielectric layer includes dielectric particles including valve metal, and an organic substance layer is formed on at least one part of a surface of the dielectric particle.
    Type: Grant
    Filed: March 4, 2010
    Date of Patent: February 26, 2013
    Assignee: Toyo Aluminium Kabushiki Kaisha
    Inventors: Kunihiko Nakayama, Zenya Ashitaka, Hidetoshi Inoue
  • Publication number: 20130045425
    Abstract: It is an object of the present invention to provide a three-dimensional network aluminum porous body which can be used for a process continuously producing an electrode and enables to produce a current collector having small electric resistance in the current collecting direction, and an electrode using the aluminum porous body, and a production method thereof. In a sheet-shaped three-dimensional network aluminum porous body for a current collector, when one of two directions orthogonal to each other is taken as an X-direction and the other is taken as a Y-direction, a cell diameter in the X-direction of the three-dimensional network aluminum porous body differs from a cell diameter in the Y-direction thereof.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 21, 2013
    Applicants: SUMITOMO ELECTRIC TOYAMA CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihisa HOSOE, Kazuki OKUNO, Hajime OTA, Koutarou KIMURA, Kengo GOTO, Hideaki SAKAIDA, Junichi NISHIMURA
  • Patent number: 8379367
    Abstract: Provided is a hybrid super capacitor using a composite electrode that may enhance equivalent series resistance (ESR) using a carbon nanotube chain. The hybrid super capacitor includes: an anode 11 including an anode oxide layer 11a and an activated carbon layer applied 11b on the anode oxide layer 11a; and a cathode 21 being disposed to face the anode 11. The cathode 21 may include a silicon oxide layer 21a, a lithium titanium oxide layer 21b disposed on the silicon oxide layer 21a, and a carbon nanotube chain CT formed to pass through the silicon oxide layer 21a and the lithium titanium oxide layer 21b to thereby be electrically connected to each other, thereby enhancing ESR and expanding an output density and a lifespan of the hybrid super capacitor.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: February 19, 2013
    Assignee: Samhwa Capacitor Co., Ltd.
    Inventors: Young Joo Oh, Jung Rag Yoon, Kyung Min Lee, Du Hee Lee
  • Patent number: 8379369
    Abstract: The invention relates to a substrate for solid electrolytic capacitor, wherein a first layer in the shielding layer formed by laminating a plurality of layers on top of each other, provided in an area for separating an anode part and a cathode part of the substrate for a solid electrolytic capacitor having a porous layer on its surface from a solution or dispersion of a heat resistant resin or its precursor, free from a shielding layer modification additive (except for a silane coupling agent) or containing a shielding layer modification additive content of not more than 0.1% by mass (based on the mass of the heat resistant resin or its precursor). The present invention enables to provide a method for producing a substrate for a solid electrolytic capacitor comprising a shielding layer made of a masking material which ensures the insulation between the anode part and the cathode part of the solid electrolytic capacitor; and a solid electrolytic capacitor using the substrate.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: February 19, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hirofumi Fukunaga, Hideki Oohata
  • Patent number: 8379372
    Abstract: A capacitor assembly that is stable under extreme conditions is provided. More particularly, the assembly includes a capacitor element that is positioned within an interior cavity of a housing. The housing includes a base to which the capacitor element is connected. The housing also includes a lid that contains an outer wall from which extends a sidewall. An end of the sidewall is defined by a lip extending at an angle relative to the longitudinal direction and having a peripheral edge located beyond a periphery of the sidewall. The lip is hermetically sealed to the base. In some cases, the peripheral edge of the lip is also coplanar with an edge of the base. The use of such a lip can enable a more stable connection between the components and improve the seal and mechanical stability of the capacitor assembly, thereby allowing it to better function under extreme conditions.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: February 19, 2013
    Assignee: AVX Corporation
    Inventors: Stanislav Zednicek, Martin Biler, Jan Petrzilek, Ivana Zednickova
  • Patent number: 8379371
    Abstract: A method for forming a hermetically sealed capacitor including: forming an anode; forming a dielectric on the anode; forming a conductive layer on the dielectric thereby forming a capacitive element; inserting the capacitive element into a casing; electrically connecting the anode to an exterior anode connection; electrically connecting the cathode to an exterior cathode connection; filling the casing with an atmosphere comprising a composition, based on 1 kg of atmosphere, of at least 175 g to no more than 245 g of oxygen, at least 7 g to no more than 11 g of water, at least 734 grams to no more than 818 grams of nitrogen and no more than 10 grams of a minor component; and hermetically sealing the casing with the atmosphere with the capacitive element contained in the casing.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: February 19, 2013
    Assignee: Kemet Electronics Corporation
    Inventors: Qingping Chen, Yuri Freeman, Steven C. Hussey
  • Publication number: 20130040205
    Abstract: The method for producing an electrode for an electrochemical element of the present invention includes a slurry filling step of filling a slurry containing an active material into continuous pores of an aluminum porous body having the continuous pores, and a slurry drying step of drying the slurry filled, and in this method, after the slurry drying step, an electrode for an electrochemical element is produced without undergoing a compressing step of compressing the aluminum porous body having the slurry filled therein and dried. In the electrode, a mixture containing an active material is filled into continuous pores of an aluminum porous body having the continuous pores, and porosity (%) of the aluminum porous body, the porosity being represented by the following equation, is 15 to 55%.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicants: SUMITOMO ELECTRIC TOYAMA CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihisa HOSOE, Kazuki OKUNO, Hajime OTA, Koutarou KIMURA, Kengo GOTO, Junichi NISHIMURA, Hideaki SAKAIDA
  • Publication number: 20130040195
    Abstract: In an electrode according to the present invention including a three-dimensional network aluminum porous body as a base material, the electrode is a sheet-shaped electrode, and a cell of the three-dimensional network aluminum porous body has an elliptic shape having a minor axis in the thickness direction of the electrode in a cross section parallel to the longitudinal direction and thickness direction of the electrode, and a cell of the three-dimensional network aluminum porous body has an elliptic shape having a minor axis in the thickness direction of the electrode in a cross section parallel to the width direction and thickness direction of the electrode. The electrode is preferably obtained by subjecting the three-dimensional network aluminum porous body to at least a current collecting lead welding step, an active material filling step and a compressing step.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 14, 2013
    Applicants: SUMITOMO ELECTRIC TOYAMA CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihisa HOSOE, Kazuki OKUNO, Hajime OTA, Koutarou KIMURA, Kengo GOTO, Hideaki SAKAIDA, Junichi NISHIMURA
  • Patent number: 8373972
    Abstract: A solid electrolytic capacitor with a protective structure, which includes stacked capacitor elements electrically connected to the positive and negative terminal. A packaging material such as synthetic resin is used to encapsulate the capacitor elements, the positive terminal, and the negative terminal. Before packaging, a protective layer is formed by a colloid material, which covers the main body of the capacitor that includes the capacitor elements, the positive terminal, and the negative terminal. The protective layer provides a better seal and relieves the external pressure exerting on the capacitor during the packaging process. The protection prevents structural damage to the capacitor's main body while reducing the risk of short-circuits and excessive current leakage.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: February 12, 2013
    Assignee: Apaq Technology Co., Ltd.
    Inventors: Ching-Feng Lin, Chi-Hao Chiu, Wen-Yen Huang, Chun-Chia Huang
  • Patent number: 8373971
    Abstract: An electrochemical double layer capacitor utilizing nano-fibers in the electrodes for increased performance. The use of nano-fibers significantly increase the surface area of the opposing electrodes for greater levels of specific energy compared to traditional double layered capacitors using activated carbon.
    Type: Grant
    Filed: January 13, 2011
    Date of Patent: February 12, 2013
    Inventor: Karl S. Young
  • Patent number: 8369066
    Abstract: A lamellar stacked solid electrolytic capacitor includes a plurality of capacitor units, a substrate unit and a package unit. Each capacitor unit is composed of a negative foil, an isolation paper with conductive polymer substance, a positive foil, an isolation paper with conductive polymer substance and a negative foil that are stacked onto each other in sequence, the positive foils of the capacitor units are electrically connected to each other, the negative foils of the capacitor units are electrically connected to each other, and the positive foils and the negative foils are insulated from each other. The substrate unit has a positive guiding substrate electrically connected to the positive foils of the capacitor units and a negative guiding substrate electrically connected to the negative foils of the capacitor units. The package unit covers the capacitor units and one part of the substrate unit.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: February 5, 2013
    Assignee: Apaq Technology Co., Ltd.
    Inventors: Ching-Feng Lin, Yui-Hsin Fran, Chi-Hao Chiu, Ming-Tsung Chen, Cheng-Wei Lai, Chun-Chia Huang
  • Patent number: 8363385
    Abstract: A solid electrolytic capacitor having a high heat resistance is provided. The solid electrolytic capacitor according to the present invention includes an anode body having a surface on which a dielectric film is formed, and a conductive polymer layer formed on the dielectric film. The conductive polymer layer includes an aromatic sulfonic acid ion and an NHPA compound ion.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: January 29, 2013
    Assignees: SANYO Electric Co., Ltd., SAGA SANYO INDUSTRIES Co, Ltd.
    Inventor: Satoru Yoshimitsu
  • Patent number: 8358497
    Abstract: An electrode foil includes a base made of foil of valve metal, and a rough surface layer made of valve metal provided on a surface of the base. The rough surface layer includes plural tree structures extending d from the base. Each of the tree structures includes plural particles of valve metal linked together, and is branched into plural twigs. This electrode foil provides an electrolytic capacitor with a small size and a large capacitance.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: January 22, 2013
    Assignee: Panasonic Corporation
    Inventors: Tatsuji Aoyama, Akiyoshi Oshima
  • Publication number: 20130010402
    Abstract: A manufacturing method of solid capacitors includes the following steps. First step is forming a plurality of separated adhesive layer on an insulating substrate. Next step is disposing valve-metal wires on the adhesive layers. Next step is forming a conductive layer on the adhesive layer and the valve-metal wires. Next step is forming a dielectric structure on the exposed surface of the valve-metal wires and the conductive layer. Next step is forming a hydrophobic layer and a conductive unit. Next step is separating the formed structures as individual capacitors. Next step is packaging the formed structures and forming terminals connected to the formed structures.
    Type: Application
    Filed: July 5, 2011
    Publication date: January 10, 2013
    Applicants: APAQ TECHNOLOGY CO., LTD., INPAQ TECHNOLOGY CO., LTD.
    Inventors: WEI-CHIH LEE, MING-TSUNG CHEN
  • Patent number: 8351187
    Abstract: A solid capacitor according to an aspect of the invention may include: a capacitor device having an anode lead wire extending from one side thereof; a case molding the capacitor device and exposing the anode lead wire to the outside thereof; cathode and anode lead frames exposed on the outside the case and electrically connected to the capacitor device; a reinforcement interposed in the case between the anode lead wire and the anode lead frame so as to support the capacitor device and electrically connecting the anode lead wire and the anode lead frame; and a resin shielding part applied to the exposed portion of the anode lead wire to prevent the infiltration of foreign substances through the anode lead wire.
    Type: Grant
    Filed: August 25, 2009
    Date of Patent: January 8, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jae Kwang Kim, Kwan Hyeong Kim, Chong Hoon Pak
  • Patent number: 8351185
    Abstract: The invention provides an electronic component and a manufacturing method thereof that can achieve an improved adhesion strength when the electronic component is solder-mounted onto an external substrate and can thereby obtain considerably improved electric properties and reliabilities, etc. An electronic component, which is a capacitor 1, has: a circuit element 5a formed on a substrate 2; an electrode layer 5b connected to the circuit element 5a; passivation layers 6 and 8 that cover the electrode layer 5b; and terminal electrodes 9a and 9b connected to the electrode layer 5b via via-conductors Va and Vb formed through the passivation layers 6 and 8, the terminal electrodes 9a and 9b being formed to cover the side wall of the passivation layers 6 and 8.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: January 8, 2013
    Assignee: TDK Corporation
    Inventors: Takashi Ohtsuka, Kyung-Ku Choi, Tatsuo Namikawa, Hitoshi Yamaguchi
  • Publication number: 20130004856
    Abstract: It is an object of the present invention to provide a sheet-shaped three-dimensional network aluminum porous body which is suitably used as current collector base materials of an electrode for a nonaqueous electrolyte battery and an electrode for a capacitor using a nonaqueous electrolytic solution, and an electrode, a capacitor and a lithium-ion capacitor, each using the sheet-shaped three-dimensional network aluminum porous body. For this object, the three-dimensional network aluminum porous body for a current collector of the present invention is a sheet-shaped three-dimensional network aluminum porous body, and a skeleton forming the aluminum porous body has a surface roughness (Ra) of 3 ?m or more, and preferably 3 ?m or more and 50 ?m or less.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 3, 2013
    Applicants: SUMITOMO ELECTRIC TOYAMA CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihisa HOSOE, Kazuki Okuno, Hajime Ota, Koutarou Kimura, Kengo Goto, Hideaki Sakaida, Junichi Nishimura
  • Publication number: 20130004844
    Abstract: The present invention provides a three-dimensional network aluminum porous body in which the cell diameter of the three-dimensional network aluminum porous body is uneven in the thickness direction, and a current collector and an electrode respectively using the aluminum porous body, and a production method thereof. That is, such a sheet-shaped three-dimensional network aluminum porous body for a current collector has a cell diameter uneven in the thickness direction. Particularly, it is preferred that when a cross section in the thickness direction of the three-dimensional network aluminum porous body is divided into three regions of a region 1, a region 2 and a region 3 in this order, the average of the cell diameter in the region 1 and the cell diameter in the region 3 differs from the cell diameter in the region 2.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 3, 2013
    Applicants: SUMITOMO ELECTRIC TOYAMA CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD
    Inventors: Akihisa HOSOE, Kazuki OKUNO, Hajime OTA, Koutarou KIMURA, Kengo GOTO, Hideaki SAKAIDA, Junichi NISHIMURA
  • Patent number: 8345408
    Abstract: A method for producing a solid electrolytic capacitor, which comprises the steps of: laying a plurality of solid electrolytic capacitor elements in proximity to each other in parallel on a cathode lead portion of a lead frame with a conductive adhesive, and electrically connecting the solid electrolytic capacitor elements to the cathode lead portion so that the conductive adhesive gets into a gap between the solid electrolytic capacitor elements.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: January 1, 2013
    Assignee: Showa Denko K.K.
    Inventor: Kazumi Naito
  • Patent number: 8345406
    Abstract: An electric double layer capacitor that contains at least one electrochemical cell is provided. The cell contains electrodes (e.g., two electrodes) that each contain a porous matrix of electrochemically-active particles (e.g., carbon). An aqueous-based electrolyte is disposed in contact with the porous matrix. In accordance with the present invention, the electrolyte is provided with an anionic polymer that serves as binding agent for the electrochemically active particles and thus reduces electrolyte loss, especially at higher temperatures. Because the polymer is anionic in nature, it is generally hydrophilic and thus can retain its binding properties in the presence of water. The anionic nature of the polymer also allows it to remain stable in the presence of a corrosive polyprotic acid, which is employed in the electrolyte to enhance charge density. Thus, as a result of the present invention, a capacitor may be formed that is capable of exhibiting good electrical performance (e.g.
    Type: Grant
    Filed: March 23, 2009
    Date of Patent: January 1, 2013
    Assignee: AVX Corporation
    Inventors: Dirk H. Dreissig, Jonathan R. Knopsnyder, Jessica M. Smith, Lee Shinaberger, Bharat Rawal
  • Patent number: 8345409
    Abstract: Provided is a high-voltage solid electrolytic capacitor having a rated voltage of several hundreds of volts. After an anodic oxide film layer is formed on a roughened surface of an aluminum foil by way of a first conversion treatment, a hydrated film is formed by way of boiling water immersion; the hydrated film is provided with a second conversion treatment at a formation voltage lower than that of the first conversion treatment such that an anodic foil is formed; and a conductive polymeric layer is formed on a surface of the anodic foil.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 1, 2013
    Assignee: Nippon Chemi-Con Corporation
    Inventors: Lawrence A. Dominey, Alex D. Smith
  • Publication number: 20120328957
    Abstract: It is an object of the present invention to provide a three-dimensional network aluminum porous body which enables to produce an electrode continuously, an electrode using the aluminum porous body, and a method for producing the electrode. The present invention provides a long sheet-shaped three-dimensional network aluminum porous body to be used as a base material in a method for producing an electrode including at least winding off, a thickness adjustment step, a lead welding step, an active material filling step, a drying step, a compressing step, a cutting step and winding-up, wherein the three-dimensional network aluminum porous body has a tensile strength of 0.2 MPa or more and 5 MPa or less.
    Type: Application
    Filed: July 2, 2012
    Publication date: December 27, 2012
    Applicants: SUMITOMO ELECTRIC TOYAMA CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihisa HOSOE, Kazuki OKUNO, Hajime OTA, Koutarou KIMURA, Kengo GOTO, Junichi NISHIMURA, Hideaki SAKAIDA
  • Publication number: 20120315566
    Abstract: The invention relates to an electrical energy unit (2, 102, 202, 302) comprising a plurality of electrical energy cells (4), which are stacked in a stacking direction to form a cell block and are connected to each other in parallel and/or in series within the cell block, the electrical energy cells having planar conductors (14), which protrude from the cell substantially in parallel with each other in two directions, the main surfaces of the conductors being oriented substantially perpendicularly to the stacking direction, the conductors of a cell at least partially not covering each other, as viewed in the stacking direction, and each conductor of a cell at least partially covering a conductor of a subsequent cell in the stacking direction, as viewed in the stacking direction.
    Type: Application
    Filed: December 21, 2010
    Publication date: December 13, 2012
    Applicant: Li-Tec Battery GmbH
    Inventors: Tim Schaefer, Claus-Rupert Hohenthanner
  • Patent number: 8331080
    Abstract: There are provided an electrolyte for a lithium ion capacitor and a lithium ion capacitor including the same. The electrolyte for a lithium ion capacitor according to the present invention includes: a lithium salt; and a mixing solvent including i) two or more compounds selected from a group consisting of cyclic carbonate compounds, ii) one or more compounds selected from a group consisting of linear carbonate compounds represented by a specified Formula, and iii) one or more compound selected from a group consisting of propionate compound represented by a specified Formula.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: December 11, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Sang Kyun Lee, Dong Hyeok Choi, Hyun Chul Jung, Bae Kyun Kim
  • Patent number: 8325465
    Abstract: A capacitor is described with an NbO anode. The capacitor has an NbO anode and an NbO anode lead extending from the NbO anode. A dielectric is on the NbO anode and a conductor is on the dielectric.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: December 4, 2012
    Assignee: Kemet Electronics Corporation
    Inventors: Yuri Freeman, Philip M. Lessner, Jeffrey Poltorak, Randolph S. Hahn
  • Publication number: 20120300369
    Abstract: A solid capacitor having an embedded electrode includes a substrate unit, a first conductive unit, a second conductive unit, a first insulative unit, a third conductive unit, a second insulative unit, and an end electrode unit. The substrate unit includes a substrate body and a conductive body embedded into the substrate body. The substrate body has a lateral opening and a plurality of top openings, and the conductive body has a lateral conductive area exposed from the lateral opening and a plurality of top conductive areas respectively exposed from the top openings. The first conductive unit includes a plurality of first conductive layers respectively covering the top conductive areas. The second conductive unit includes a second conductive layer covering the first conductive layers. The porosity rate of the second conductive layer is larger than that of each first conductive layer.
    Type: Application
    Filed: May 25, 2011
    Publication date: November 29, 2012
    Applicants: APAQ TECHNOLOGY CO., LTD., INPAQ TECHNOLOGY CO., LTD.
    Inventors: WEI-CHIH LEE, Ming-Tsung Chen
  • Publication number: 20120293911
    Abstract: Technologies and implementations for graphene integrated energy storage devices having capacitive-like properties are generally disclosed.
    Type: Application
    Filed: May 17, 2011
    Publication date: November 22, 2012
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Sung-wei Chen, Chris Rothfuss
  • Patent number: 8313538
    Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current for high nominal voltages, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: November 20, 2012
    Assignee: Heraeus Precious Metals GmbH & Co. KG
    Inventors: Udo Merker, Wilfried Lövenich, Klaus Wussow
  • Publication number: 20120288758
    Abstract: It is an object of the present invention to provide a sheet-shaped three-dimensional network aluminum porous body for a current collector which is suitably used for electrodes for nonaqueous electrolyte batteries and electrodes for capacitors, an electrode and a capacitor each using the same. In such a three-dimensional network aluminum porous body for a current collector, the aluminum porous body has been made to have a compressive strength in a thickness direction of 0.2 MPa or more in order to efficiently fill an active material into the sheet-shaped three-dimensional network aluminum porous body.
    Type: Application
    Filed: May 30, 2012
    Publication date: November 15, 2012
    Applicants: SUMITOMO ELECTRIC TOYAMA CO., LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihisa HOSOE, Kazuki OKUNO, Hajime OTA, Koutarou KIMURA, Kengo GOTO, Hideaki SAKAIDA, Junichi NISHIMURA
  • Publication number: 20120288757
    Abstract: It is an object of the present invention to provide a sheet-shaped three-dimensional network aluminum porous body for a current collector which is suitably used for electrodes for nonaqueous electrolyte batteries and electrodes for capacitors, an electrode and a capacitor each using the same. The three-dimensional network aluminum porous body for a current collector of the present invention is a sheet-shaped three-dimensional network aluminum porous body for a current collector used for electrodes, and the aluminum porous body has been made to have an average cell diameter of 50 ?m or more and 1000 ?m or less in order to enhance the filling performance of an active material slurry.
    Type: Application
    Filed: May 30, 2012
    Publication date: November 15, 2012
    Applicants: SUMITOMO ELECTRIC TOYAMA CO, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Akihisa Hosoe, Kazuki Okuno, Hajime Ota, Koutarou Kimura, Kengo Goto, Hideaki Sakaida, Junichi Nishimura
  • Patent number: 8310816
    Abstract: A capacitor with an anode, a dielectric on the anode and a cathode on the dielectric. A transition layer is on the cathode wherein the transition layer has a blocking layer. A plated layer is on the transition layer. The cathode is electrically connected to a cathode termination through the transition layer.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: November 13, 2012
    Assignee: Kemet Electronics Corporation
    Inventor: Antony P. Chacko
  • Patent number: 8310814
    Abstract: A stacked capacitor with positive multi-pin structure includes a plurality of capacitor units, a substrate unit and a package unit. Each capacitor unit has a positive electrode that has a positive pin extended outwards therefrom. The positive pins of the capacitor units are divided into a plurality of positive pin units that are separated from each other, and the positive pins of each positive pin unit are electrically stacked onto each other. Each capacitor unit has a negative electrode, and the negative electrodes of the capacitor units are electrically stacked onto each other. The substrate unit has a positive guiding substrate electrically connected to the positive pins of the capacitor units and a negative guiding substrate electrically connected to the negative electrodes of the capacitor units. The package unit covers the capacitor units and one part of the substrate unit.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: November 13, 2012
    Assignee: Apaq Technology Co., Ltd.
    Inventors: Chi-Hao Chiu, Yui-Hsin Fran, Ching-Feng Lin, Chun-Chia Huang
  • Publication number: 20120281338
    Abstract: An aluminum electrolytic capacitor includes an aluminum foil substrate, a porous aluminum layer, an insulating layer, an electrically conductive polymer material, an electrically conductive material, and at least two terminal electrodes. The porous aluminum layer is attached to the aluminum foil substrate. The insulating layer is formed on the porous aluminum layer. The electrically conductive polymer material overlays the insulating layer. The terminal electrodes respectively connect to the aluminum foil and the electrically conductive material.
    Type: Application
    Filed: May 5, 2011
    Publication date: November 8, 2012
    Applicant: INPAQ TECHNOLOGY CO., LTD.
    Inventors: WEI CHIH LEE, SHIH KWAN LIU