Organic Salt (e.g., Tcnq) Patents (Class 361/527)
  • Patent number: 10679796
    Abstract: A solid electrolytic capacitor includes a capacitor element. The capacitor element includes an anode body that is a porous sintered body, a dielectric layer disposed on a surface of the porous sintered body, an insulating material disposed on a surface of the dielectric layer, and a solid electrolyte layer disposed on a surface of the insulating material. The capacitor element has at least one corner part. An amount of the insulating material disposed in the at least one corner part of the capacitor element is larger than an amount of the insulating material disposed in a center part of the capacitor element.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: June 9, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Masanori Kashihara
  • Patent number: 10340090
    Abstract: An electrolytic capacitor includes: an anode body; a dielectric layer formed on the anode body; a first conductive polymer layer covering at least a part of the dielectric layer; a second conductive polymer layer covering at least a part of the first conductive polymer layer; and an intermediate layer formed between the first conductive polymer layer and second conductive polymer layer. The intermediate layer includes a cation agent containing a cationic group, and an anion agent containing a first anionic group and a second anionic group. The first anionic group is higher in electron-withdrawing property than the second anionic group. In the intermediate layer, a total of a number of the first anionic group and a number of the second anionic group is larger than a number of the cationic group.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: July 2, 2019
    Assignee: PANASONIC CORPORATION
    Inventors: Youichirou Uka, Shintaro Tanimoto, Hiroshi Kojima
  • Patent number: 10014116
    Abstract: A capacitor with improved electronic properties is described. The capacitor has an anode, a dielectric on said anode and a cathode on the dielectric. The cathode has a conductive polymer defined as —(CR1R2CR3R4—)x— wherein at least one of R1, R2, R3 or R4 comprises a group selected from thiophene, pyrrole or aniline with the proviso that none of R1, R2, R3 or R4 contain —SOOH or COOH; a organofunctional silane; and an organic compound with at least two functional groups selected from the group consisting of carboxylic acid and epoxy.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: July 3, 2018
    Assignee: KEMET Electronics Corporation
    Inventors: Yaru Shi, Antony P. Chacko, Edgar White
  • Patent number: 9892859
    Abstract: A dispersion liquid including one of thiophene and derivatives thereof, a polyanion, and a solvent is prepared. The dispersion liquid is mixed with a first oxidizing agent producing iron ions so as to oxidatively polymerize the one of thiophene and derivatives thereof. At the completion of the polymerization, the conductive polymer microparticle dispersion contains trivalent iron ions with a concentration of 3 to 30 parts by weight, inclusive, with respect to 100 parts by weight of the conductive polymer microparticle.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: February 13, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kazuhiro Takatani, Tatsuji Aoyama
  • Patent number: 9358781
    Abstract: Provided is a liquid discharging apparatus which includes a modulation circuit which generates a modulation signal which is obtained by pulse-modulating a source signal, a transistor which generates an amplified modulation signal by amplifying the modulation signal, a low pass filter which includes an inductor and a capacitor and generates a drive signal by smoothening the amplified modulation signal, a piezoelectric element which is displaced by receiving the drive signal, a cavity of which the internal volume changes in accordance with the displacement of the piezoelectric element, a nozzle through which liquid in the cavity is discharged in accordance with change in the internal volume of the cavity, and a circuit substrate on which the modulation circuit, the transistor, and the low pass filter are mounted, in which the capacitor is a leadless type capacitor.
    Type: Grant
    Filed: February 19, 2015
    Date of Patent: June 7, 2016
    Assignee: Seiko Epson Corporation
    Inventors: Akira Abe, Hiroshi Sugita
  • Patent number: 9214284
    Abstract: A decoupling device including a lead frame and at least one capacitor unit set is provided. The lead frame includes a cathode terminal portion and at least two anode terminal portions disposed at two sides of the cathode terminal portion and opposite to each other. The anode terminal portions are electrically connected through a conductive line. One of the anode terminal portions extends along a first direction to form an extending portion, and the extending portion is bended along a second direction perpendicular to the first direction to form an anode side plate. Each capacitor unit set includes a plurality of capacitor units. The capacitor unit sets are connected in parallel on a same plane and disposed on the lead frame. Each capacitor unit has a cathode portion electrically connected to the cathode terminal portion and an anode portion electrically connected to the anode side plate along the first direction.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: December 15, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Yi-Hsiu Pan, Yu-Ting Cheng, Li-Duan Tsai, Chi-Lun Chen
  • Publication number: 20150115206
    Abstract: A predoping method for lithium, which is characterized by mixing and kneading, in the presence of a solvent, lithium metal with (a) silicon and a composite dispersion of silicon and silicon dioxide, (b) particles represented by SiOx (wherein 0.5?x<1.6) and having a fine structure wherein fine silicon particles are dispersed in a silicon-based compound, and (c) an Si-based material that is a mixture of one or more oxides selected from among the lower oxides of silicon represented by the above-mentioned formula and that is capable of absorbing and desorbing lithium ions; a lithium-predoped electrode which uses the predoping method for lithium; and an electricity storage device.
    Type: Application
    Filed: May 8, 2013
    Publication date: April 30, 2015
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masanori Fujii, Hisashi Satake, Hajime Kinoshita
  • Publication number: 20150064603
    Abstract: Flexible electrical devices are provided that include a coated inner carbon nanotube electrode that has an exterior surface, an outer carbon nanotube electrode disposed on the exterior surface of the coated inner carbon nanotube electrode, and an overlap region in which the coated inner carbon nanotube electrode and the outer carbon nanotube electrode overlap one another, in which the device has a fiber-like geometry and first and second electrode ends. Methods are provided for fabricating an electrical component that includes a flexible electrical component having a fiber-like geometry and includes carbon nanotube electrodes.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Inventors: Jesse Smithyman, Zhiyong Liang
  • Patent number: 8877390
    Abstract: Compounds may have general Formula IVA or IVB. where, R8, R9, R10, and R11 are each independently selected from H, F, Cl, Br, CN, NO2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z? is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
    Type: Grant
    Filed: May 23, 2011
    Date of Patent: November 4, 2014
    Assignee: UChicago Argonne, LLC
    Inventors: Wei Weng, Zhengcheng Zhang, Khalil Amine
  • Publication number: 20140211374
    Abstract: There is provided a conductive polymer having high conductivity with excellent heat resistance. Using the conductive polymer, there can be provided solid electrolytic capacitors having low ESR, high reliability, and less leakage current. There can be also provided conductive films having high conductivity and superior heat resistance. There is provided a conductive polymer dispersion liquid obtained by a method in which in the presence of a copolymer from styrenesulfonic acid, and at least one kind of a non-sulfonic acid monomer selected from the group consisting of methacrylate, acrylate, and an unsaturated hydrocarbon containing alkoxysilane compound or its hydrolysate, thiophene or its derivative is polymerized by oxidation polymerization in water, or in an aqueous solution comprising a mixture of water and a water miscible solvent to produce the conductive polymer dispersion liquid. Using the conductive polymer as solid electrolyte, a solid electrolyte capacitor can be provided.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 31, 2014
    Applicant: TAYCA CORPORATION
    Inventors: Ryosuke Sugihara, Kei Hirota, Kazuto Fujihara
  • Publication number: 20140168858
    Abstract: Provided is an electroconductive polymer solution containing an electroconductive polymer having high chemical resistance and a high electroconductivity. It is an electroconductive polymer solution, containing an electroconductive polymer having thiophene, aniline, pyrrole, or a derivative thereof as a repeating unit, wherein a dopant or a salt thereof having an amide bond and an anion group is doped into the electroconductive polymer.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 19, 2014
    Applicant: NEC TOKIN Corporation
    Inventors: Hiroki SATOH, Yasuhisa Sugawara, Hiroyuki Demizu, Yasuhiro Tomioka, Koji Sakata
  • Publication number: 20140092529
    Abstract: Provided are an electroconductive polymer solution in which the carbon material has excellent dispersibility, an electroconductive polymer material which has a high electroconductivity and which can be produced by a simple method, and a solid electrolytic capacitor and a method for producing the same which has a low ESR without increasing a leakage current. An electroconductive polymer solution according to an exemplary embodiment of the invention contains an electroconductive polymer, a polysulfonic acid or a salt thereof which functions as a dopant to the electroconductive polymer, a mixture of a polyacid and a carbon material, and a solvent.
    Type: Application
    Filed: February 27, 2012
    Publication date: April 3, 2014
    Applicant: NEC TOKIN CORPORATION
    Inventors: Tomoki Nobuta, Yasuhisa Sugawara, Yuji Yoshida, Satoshi Suzuki, Yasuhiro Tomioka
  • Publication number: 20140022706
    Abstract: An electric conductive polymer aqueous suspension is prepared by dispersing an electric conductive polymer powder whose surface is doped with a polyacid in which the number of anion groups is 50% or more and 99% or less with respect to the number of repeating units of the polyacid. By using the electric conductive polymer aqueous suspension, an organic material excellent in adhesiveness to a substrate and humidity resistance, and high in conductivity, as well as a solid electrolytic capacitor low in ESR and excellent in reliability in a high humidity atmosphere, and a method for producing the same can be provided.
    Type: Application
    Filed: April 9, 2012
    Publication date: January 23, 2014
    Inventors: Yasuhisa Sugawara, Tomoki Nobuta, Yuji Yoshida, Satoshi Suzuki, Yasuhiro Tomioka
  • Publication number: 20130337346
    Abstract: The object of the present invention is to provide a nonaqueous electrolytic solution that can improve the electrochemical properties in a broad temperature range and an electrochemical device using the same. A nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the nonaqueous solvent includes 0.1 to 30% by volume of a fluorine atom-containing cyclic carbonate, and further the nonaqueous electrolytic solution includes 0.001 to 5% by mass of a branched dinitrile compound in which the main chain of an alkylene chain linking the two nitrile groups has 2 or more and 4 or less of the carbon number.
    Type: Application
    Filed: December 5, 2011
    Publication date: December 19, 2013
    Applicant: UBE Industries Ltd
    Inventors: Kazuhiro Miyoshi, Masahide Kondo
  • Publication number: 20130335886
    Abstract: A solid electrolytic capacitor that contains an anode body formed from an electrically conductive powder and a dielectric coating located over and/or within the anode body is provided. The powder may have a high specific charge and in turn a relative dense packing configuration. Despite being formed from such a powder, a manganese precursor solution can be readily impregnated into the pores of the anode. This is accomplished, in part, through the use of a dispersant in the precursor solution that helps minimize the likelihood that the manganese oxide precursor will form droplets upon contacting the surface of the dielectric. Instead, the precursor solution can be better dispersed so that the resulting manganese oxide has a “film-like” configuration and coats at least a portion of the anode in a substantially uniform manner.
    Type: Application
    Filed: August 14, 2013
    Publication date: December 19, 2013
    Applicant: AVX Corporation
    Inventors: Ian Pinwill, David Masheder, Silvie Vilcova, Petr Stojan, Jiri Hurt, Ivan Horacek
  • Publication number: 20130288124
    Abstract: It is an object of the present invention to provide a current collector including an aluminum porous body suitable for an electrode for a nonaqueous electrolyte battery and an electrode for a capacitor electrode, and an electrode using the current collector. In the three-dimensional network aluminum porous body for a current collector of the present invention, when a sheet-shaped three-dimensional aluminum porous body is divided in the width direction into a central region and two end regions with the central region situated therebetween, the weight per unit area of aluminum in the aluminum porous body at the two end regions is larger than the weight per unit area of aluminum in the aluminum porous body at the central region.
    Type: Application
    Filed: February 14, 2012
    Publication date: October 31, 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: 20130189602
    Abstract: A structure for use in an energy storage device, the structure comprising a backbone system extending generally perpendicularly from a reference plane, and a population of microstructured anodically active material layers supported by the lateral surfaces of the backbones, each of the microstructured anodically active material layers having a void volume fraction of at least 0.1 and a thickness of at least 1 micrometer.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 25, 2013
    Inventors: Ashok Lahiri, Robert Spotnitz, Nirav Shah, Murali Ramasubramanian, Harrold J. Rust, III, James D. Wilcox, Michael J. Armstrong, Brian E. Brusca, Christopher G. Castledine, Laurie J. Lauchlan
  • Publication number: 20130122398
    Abstract: An electrochemical or electric layer system, having at least two electrode layers and at least one ion-conducting layer disposed between two electrode layers. The ion-conducting layer has at least one ion-conducting solid electrolyte and at least one binder at grain boundaries of the at least one ion-conducting solid electrolyte for improving the ion conductivity over the grain boundaries and the adhesion of the layers.
    Type: Application
    Filed: May 16, 2011
    Publication date: May 16, 2013
    Applicant: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Peter Birke, Olaf Böse, Michael Keller, Michael Schiemann, Hans-Georg Schweiger
  • Publication number: 20130115520
    Abstract: The present invention relates to a nonaqueous electrolytic solution which can improve the electrochemical characteristics in a broad temperature range and an electrochemical element produced by using the same. Provided are (1) a nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, which comprises an organic tin compound represented by the specific formula in an amount of 0.001 to 5% by mass of the nonaqueous electrolytic solution and (2) an electrochemical element comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution prepared by dissolving an electrolyte salt in a nonaqueous solvent, wherein the above nonaqueous electrolytic solution is the nonaqueous electrolytic solution of (1) described above.
    Type: Application
    Filed: July 22, 2011
    Publication date: May 9, 2013
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Koji Abe, Kei Shimamoto
  • Publication number: 20130084488
    Abstract: An electrochemical device includes a power generating element, an outer package, a current collector, and a movement restricting member. The power generating element includes a main portion and a terminal portion. The main portion includes an electrode prepared by forming an active material layer on a metal foil surface of the electrode. The terminal portion is provided on a side of the main portion. The outer package houses the power generating element. The current collector is connected to the terminal portion of the power generating element. The movement restricting member includes a holding portion arranged between the side of the main portion of the power generating element and an inner surface of the outer package opposite the side of the main portion.
    Type: Application
    Filed: October 4, 2012
    Publication date: April 4, 2013
    Applicant: GS Yuasa International Ltd.
    Inventor: GS Yuasa International Ltd.
  • 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: 8378611
    Abstract: A circuit for alarming abnormal state of a computer fan includes a detection circuit coupled to the computer fan, a controller coupled to the detection circuit and the computer fan, an alarm unit coupled to the controller. The detection circuit detects a power source and a speed control signal received by the computer fan, the controller determines the work state of the computer fan according to the power source, the speed control signal, and a speed signal received from the computer fan and raises an alarm through the alarm unit if the computer fan is not working normally.
    Type: Grant
    Filed: July 15, 2010
    Date of Patent: February 19, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Song-Lin Tong, Hai-Qing Zhou
  • Publication number: 20130040196
    Abstract: It is an object of the present invention to provide an electrochemical element which has a high capacity and is low in cost. The electrochemical element of the present invention is an electrochemical element including an electrode for an electrochemical element, wherein a current collector of positive electrode and/or a current collector of negative electrode is a metal porous body having continuous pores and a mixture containing an active material is filled into the continuous pores.
    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: 20130017438
    Abstract: An accumulator device includes: an outer container with mutually overlapped outer films bonded air-tightly to each other at a bonding portion formed along respective outer peripheral edge portions; an electrode unit accommodated inside the outer container and including positive and negative electrode sheets stacked one on another with a separator disposed therebetween, the positive and negative electrode sheets each including a current collector on which an electrode layer is formed; positive and negative electrode terminals provided to protrude from inside the outer container to outside through the bonding portion; and an electrolytic solution injected in the outer container. The positive electrode terminal includes an aluminum terminal substrate and a nickel-plating coating formed on a surface of an outer end portion of the terminal substrate located outside the outer container; an inner edge of the nickel-plating coating is located within the bonding portion.
    Type: Application
    Filed: February 24, 2011
    Publication date: January 17, 2013
    Applicant: JM Energy Corporation
    Inventors: Makoto Taguchi, Yuu Watanabe, Nobuo Ando, Hidenori Takagi
  • Publication number: 20130003261
    Abstract: Disclosed herein are a lithium plate, a method for lithiation of an electrode, and an energy storage device. According to an exemplary embodiment of the present invention, there is provided a lithium plate used for lithium pre-doping of an electrode for an energy storage device, including: a contact area contacting the electrode at the time of the pre-doping; and a plurality of through holes or a plurality of grooves regularly distributed to be adjacent to the contact area so that an electrolytic solution gains easy access to the vicinity of a contact boundary of the contact area and the electrode at the time of the pre-doping. In addition, a method for lithiation of an electrode for an energy storage device using the above-mentioned lithium plate and an energy storage device including a negative electrode (anode) lithiated according to the method have been proposed.
    Type: Application
    Filed: June 26, 2012
    Publication date: January 3, 2013
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sergey Remizov, Hong Seok Min, Bae Kyun Kim, Hyun Chul Jung
  • 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
  • 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: 20120328944
    Abstract: An electrode of the present invention includes: an electrically conductive support (11); and an active material layer (12) provided on the electrically conductive support (11), containing an electrode active material (13) and an electrical conductivity assistant (14), wherein: the electrode active material (13) includes at least one of a first polymer compound having a tetrachalcogenofulvalene structure in a repetition unit of a main chain, and a second polymer compound which is a copolymer between a first unit which has the tetrachalcogenofulvalene structure in a side chain and a second unit which does not have the tetrachalcogenofulvalene structure in the side chain; and in active material layer (13), the electrode active material (13) does not form particles but covers at least a portion of a surface of the electrical conductivity assistant (14).
    Type: Application
    Filed: December 24, 2010
    Publication date: December 27, 2012
    Applicant: Panasonic Corporation
    Inventors: Takafumi Tsukagoshi, Yu Ohtsuka, Nobuhiko Hojo, Takakazu Yamamoto, Hiroki Fukumoto
  • 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: 20120328941
    Abstract: It is an object of the present invention to provide an electrode using a current collector made of an aluminum porous body which is suitably used for an electrode for a nonaqueous electrolyte battery and an electrode for a capacitor, and a method for producing the electrode. In the current collector of the present invention, a strip-shaped compressed part compressed in a thickness direction is formed at one end part of a three-dimensional network aluminum porous body and a tab lead is bonded to the compressed part by welding. The width of the compressed part is 2 to 10 mm. Further, the electrode is formed by filling the current collector with an active material.
    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, Hideaki SAKAIDA, Junichi NISHIMURA
  • Publication number: 20120264022
    Abstract: Provided is electrochemical device, such as a nonaqueous electrolyte battery, which has excellent discharge characteristics and the like by forming a thick electrode using a metal porous body, such as an aluminum porous body, as a current collector. An electrode for an electrochemical device includes a metal porous body filled with an active material, in which the metal porous body is sheet-like and is a stacked porous body in which a plurality of single-layer metal porous bodies are stacked and electrically connected to each other. The metal porous body may be an aluminum porous body having a three-dimensional network structure.
    Type: Application
    Filed: April 18, 2012
    Publication date: October 18, 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: 8279581
    Abstract: An electrolytic solution for an electrolytic capacitor includes a solvent and an electrolyte dissolved in the solvent. This electrolyte includes at least one of a carboxylic acid and a salt of the carboxylic acid. The carboxylic acid has a carboxyl group and at least one or more of substituents bonded to each terminal carbon of a straight main chain. The substituent bonded to the each terminal carbon of the main chain is hydrophilic, and/or a hydrophilic substituent is bonded to at least one of carbons other than the both terminal carbons of the main chain.
    Type: Grant
    Filed: December 3, 2008
    Date of Patent: October 2, 2012
    Assignee: Panasonic Corporation
    Inventor: Ryoko Takaoka
  • Publication number: 20120218683
    Abstract: Disclosed is an electrochemical capacitor which comprises an element, an electrolyte, and an outer case that houses the element and the electrolyte. The element comprises: a negative electrode that is obtained by forming a negative electrode layer on the surface of a collector, the negative electrode layer containing a carbon material in which lithium ions are absorbed; a positive electrode that is obtained by forming a positive electrode layer on the surface of a collector, the positive electrode layer absorbing ions; and a separator that is interposed between the negative electrode and the positive electrode. The electrolyte contains lithium ions. A coating film that contains lithium carbonate is formed on the surface of the carbon material that is contained in the negative electrode layer.
    Type: Application
    Filed: November 11, 2010
    Publication date: August 30, 2012
    Inventors: Keiichi Kondou, Toshiro Kume, Tomohiro Okuzawa
  • Publication number: 20120219865
    Abstract: There are provided a nonaqueous-type electrolyte solution having high flame retardancy and a good capacity retention rate, and a device comprising the nonaqueous-type electrolyte solution. The nonaqueous-type electrolyte solution is used in a device comprising a positive electrode, a negative electrode and the nonaqueous-type electrolyte solution, and contains a lithium salt and a compound having a phosphazene structure, and further contains 0.05% by mass or more and 12.0% by mass or less of at least one disulfonate ester selected from a cyclic disulfonate ester and a chain disulfonate ester based on the total of the nonaqueous-type electrolyte solution.
    Type: Application
    Filed: October 19, 2010
    Publication date: August 30, 2012
    Applicant: NEC ENERGY DEVICES, LTD.
    Inventors: Shinako Kaneko, Hitoshi Ishikawa, Yasutaka Kono, Yoko Hashizume
  • Publication number: 20120148924
    Abstract: To provide a power storage device having a solid electrolyte, in which a charge-discharge capacity can be increased, and a method for manufacturing the power storage device. The power storage device includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode, and the electrolyte includes an ion-conductive high molecular compound, an inorganic oxide, and a lithium salt, and the inorganic oxide is included in the electrolyte at more than 30 wt % and 50 wt % or less to the total of the ion-conductive high molecular compound and the inorganic oxide.
    Type: Application
    Filed: December 1, 2011
    Publication date: June 14, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kiyofumi Ogino, Kuniharu Nomoto, Teppei Oguni, Mako Motoyoshi
  • Publication number: 20110294017
    Abstract: Compounds may have general Formula IVA or IVB. where, R8, R9, R10, and R11 are each independently selected from H, F, Cl, Br, CN, NO2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z? is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
    Type: Application
    Filed: May 23, 2011
    Publication date: December 1, 2011
    Inventors: Wei Weng, Zhengcheng Zhang, Khalil Amine
  • Publication number: 20110051323
    Abstract: A method for manufacturing a capacitor that enables a capacitor having a high degree of conductivity and minimal leakage current to be obtained with a high level of productivity. A method for manufacturing a capacitor (10) according to the present invention includes an electrolytic oxidation step of forming a dielectric layer (12) by electrolytically oxidizing the surface of an anode (11) composed of a valve metal, a cathode positioning step of positioning a cathode (13) composed of a conductor in an opposing arrangement on the surface of the dielectric layer (12), a solid electrolyte formation step of forming a solid electrolyte layer (14) between the dielectric layer (12) and the cathode (13) using a conductive polymer solution containing a ?-conjugated conductive polymer and a polyanion, and an application step of performing a treatment in which a direct current voltage is applied between the anode (11) and the cathode (13).
    Type: Application
    Filed: April 17, 2009
    Publication date: March 3, 2011
    Inventors: Tailu Ning, Michiko Shingai
  • Publication number: 20100165548
    Abstract: There is provided a reaction accelerator for polymerizing a conductive polymer, comprising: a salt of an anion derived from a sulfonic acid having a skeleton of benzene or naphthalene having at least one OH group, and at least one divalent or more cation other than a transition metal cation. There is also provided a conductive polymer including the salt concerning the reaction accelerator. There is also provided a solid electrolyte capacitor including the conductive polymer as a solid electrolyte. The conductive polymer has a high electric conductivity and good heat-resistance. The solid electrolyte capacitor is reliable for an extended period of time.
    Type: Application
    Filed: May 28, 2007
    Publication date: July 1, 2010
    Applicant: TAYCA CORPORATION
    Inventor: Ryousuke Sugihara
  • Publication number: 20100165544
    Abstract: An electrode foil includes a structure a structure in which metal particles and ceramic particles, which primarily include at least one of valve metal particles having a dielectric constant and ceramic particles, are deposited on a surface of a metal foil.
    Type: Application
    Filed: October 16, 2009
    Publication date: July 1, 2010
    Applicant: FUJITSU LIMITED
    Inventors: Yoshihiko Imanaka, Minoru Funahashi, Hidetoshi Ishizuka, Katsuharu Yamada
  • Patent number: 7736398
    Abstract: A method is described for manufacturing a conductive polymer electrolytic capacitor. The method includes a step of aging a capacitor element including an electrolyte containing a conductive polymer and an ionic liquid by applying an aging voltage y (V) to the capacitor element to satisfy the following formula (1) or the following formula (2). In the following formulae (1) and (2), x represents a forming voltage for a valve metal. An electrolytic capacitor having a high withstand voltage is implemented by this method. 0.5x?y?x(0<x?48)??(1) 24?y?x(48<x)??(2).
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: June 15, 2010
    Assignee: Kaneka Corporation
    Inventors: Kazuyuki Tateishi, Mutsuaki Murakami, Hiroyuki Furutani
  • Publication number: 20100118470
    Abstract: A solid electrolytic capacitor includes a positive electrode foil made of metal, a dielectric oxide layer provided on a surface of the positive electrode foil, a separator provided on the dielectric oxide layer, a solid electrolyte layer made of conductive polymer impregnated in the separator, a negative electrode foil facing the dielectric oxide layer across the solid electrolyte layer, and a phosphate provided on the dielectric oxide layer. This solid electrolytic capacitor reduces a leakage current.
    Type: Application
    Filed: March 6, 2009
    Publication date: May 13, 2010
    Applicant: Panasonic Corporation
    Inventors: Ayumi Kochi, Seiji Takagi, Shigetaka Furusawa, Hiroyuki Matsuura, Tatsuji Aoyama, Yukiya Shimoyama
  • Publication number: 20100091433
    Abstract: The electrolytic capacitor includes two chemically processed anode foils, two cathode foils, four separator sheets, four lead tab terminals, two anode leads and two cathode leads. The two chemically processed anode foils, two cathode foils and four separator sheets are arranged alternately and rolled, to form a capacitor element. Two lead tab terminals are connected to the two chemically processed anode foils, respectively, and the remaining two lead tab terminals are connected to two cathode foils, respectively. The two anode leads are connected to two lead tab terminals, respectively, and the two cathode leads are connected to two lead tab terminals, respectively. As a result, equivalent series resistance can stably be reduced.
    Type: Application
    Filed: December 14, 2009
    Publication date: April 15, 2010
    Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.
    Inventors: Kazumasa Fujimoto, Satoshi Aikawa
  • Publication number: 20100085686
    Abstract: The present invention provides an agent serving as oxidant and dopant in which it does not generate precipitates in a state of an alcohol solution for a certain period of time and the oxidizing power is not too strong. By using the same, the present invention provides a conductive polymer having a high conductivity and heat resistance. By using the same, the present invention provides a solid electrolytic capacitor reliable under a high temperature condition. The present invention provides an agent serving as oxidant and dopant for conductive polymer production, the agent serving as oxidant and dopant comprising: a ferric salt of acids comprising a benzene sulfonic acid derivative represented by formula (1) and sulfuric acid. “R” represents an alkyl or alkoxy group having a carbon number of 1 to 4. More than 90 mole % of the benzene sulfonic acid derivative have R at the para position with respect to the SO3H group. Sulfuric acid is contained at 0.05 to 1.5 mass % in the acids.
    Type: Application
    Filed: June 17, 2008
    Publication date: April 8, 2010
    Applicant: TAYCA CORPORATION
    Inventors: Ryousuke Sugihara, Masayuki Kondo, Yuhei Tsurumoto
  • Publication number: 20100027195
    Abstract: A lithium ion capacitor includes a positive electrode made of a material capable of reversibly doping and dedoping lithium ions and/or anions; a negative electrode made of a material capable of reversibly doping and dedoping lithium ions; and an electrolytic solution made of an aprotonic organic solvent electrolyte solution of a lithium salt. When the negative electrode and/or positive electrode and a lithium ion supply source are electrochemically brought into contact, lithium ions are doped in a negative electrode and/or positive electrode. A positive electrode potential after the positive electrode and negative electrode are short-circuited is 2.0 V (vs. Li/Li+) or less. The positive electrode and/or negative electrode has a current collector made of a metal foil that has many holes that penetrate through both sides and have an average diameter of inscribed circles of the through-holes of 100 ?m or less.
    Type: Application
    Filed: November 13, 2006
    Publication date: February 4, 2010
    Applicant: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hiromoto Taguchi, Nobuo Ando, Hideki Shibuya, Shinichi Tasaki, Risa Miyagawa, Yukinori Hato, Osamu Hatozaki
  • Publication number: 20090303665
    Abstract: A solid electrolytic capacitor comprising a solid electrolyte comprised of an electroconductive polymer, formed on a metal substrate with a valve action having a dielectric film formed on the surface thereof, characterized in that the dielectric film has a thickness of at least 30 nm, and the solid electrolyte contains 0.1% to 20% by mol, based on the total monomer units constituting the electroconductive polymer, of an anion of an aromatic compound, preferably an aromatic polycyclic compound having an aromatic polycyclic structure as basic skeleton and containing a Br?nsted acid group, as a dopant.
    Type: Application
    Filed: December 27, 2006
    Publication date: December 10, 2009
    Applicant: Showa Denko K.K.
    Inventor: Hideki Oohata
  • Publication number: 20090290291
    Abstract: [Problem] In a wound-type solid electrolytic capacitor, leakage current that is caused by separation of a hard coating film from the cathode is prevented from increasing. [Resolution Means] A solid electrolytic capacitor is configured to include a wound capacitor element that has an anode (2), a cathode (3) composed of aluminum, a hard coating film (28) formed on a surface of the cathode (3), a separator (4b), and a solid electrolyte layer, and is also configured so that the solid electrolytic capacitor further includes an intermediate layer 18 formed between the cathode (3) and the hard coating film (28), the hard coating film (28) is composed of a compound of aluminum, titanium, and at least one nonmetallic element, and the intermediate layer (18) contains at least one element selected from the group of metallic elements consisting of aluminum and titanium.
    Type: Application
    Filed: November 29, 2006
    Publication date: November 26, 2009
    Applicants: SANYO ELECTRIC CO., LTD., SAGA SANYO INDUSTRIES CO., LTD.
    Inventor: Satoru Yoshimitsu
  • Publication number: 20090021894
    Abstract: The object of the present invention is to provide a condenser that exhibits excellent conductivity of the solid electrolyte layer, and has a low ESR, a high degree of heat resistance, and a high withstand voltage. A condenser of the present invention includes an anode composed of a valve metal, a dielectric layer formed by oxidation of the surface of the anode, and a solid electrolyte layer formed on the surface of the dielectric layer, wherein the solid electrolyte layer contains a ?-conjugated conductive polymer, a polyanion, and an amide compound.
    Type: Application
    Filed: February 8, 2007
    Publication date: January 22, 2009
    Inventors: Tailu Ning, Kazuyoshi Yoshida, Yasushi Masahiro, Sou Matsubayashi, Rika Abe, Mitsuaki Negishi
  • Patent number: 7430108
    Abstract: Electrolyte solution and an electrolytic capacitor using it having a low impedance characteristic, having a high withstand voltage characteristic of 100V class, and a high temperature life characteristic is provided. The electrolyte solution containing an aluminum tetrafluoride salt, and a solvent with high boiling point, such as sulfolane, 3-methyl sulfolane, and 2,4-dimethyl sulfolane, and the like are used. The electrolytic capacitor of the present invention has a low impedance characteristic, a high withstand voltage characteristic, and an excellent high temperature life characteristic.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: September 30, 2008
    Assignees: Nippon Chemi-con Corporation, Mitsubishi Chemical Corporation
    Inventors: Masashi Ozawa, Minoru Wada, Masayuki Takeda, Makoto Ue
  • Patent number: 7387648
    Abstract: The invention relates to a coil type solid electrolytic capacitor containing solid organic polymer with high electrical conductivity as electrolyte and its manufacturing method. In the invention, such processes as oxidation, carbonization, immersing, chemical oxypolymerization, and so on are fully disclosed. The solid electrolytic capacitor of the invention has a pretty low equivalent series resistance (ESR), good impedance frequency properties, so can be used at a frequency above 1 MHz. And it has a high anti-ripple current capacity, wide applicable range of temperature, good temperature properties, large capacity, long life, and reliable performance, therefore can be widely applied in the fields of modern communication, computer, and high performance civilian and military electronic products.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: June 17, 2008
    Assignee: Samxon Electronics (Dong Guan) Co., Ltd.
    Inventor: Lik Wing Kee
  • Patent number: 7347954
    Abstract: A polymer electrolyte-forming composition containing (A) a quaternary ammonium salt of general formula (1) below and (B) an ionic liquid can be converted into a polymer without compromising the excellent properties of the ionic liquid, thus enabling an electrolyte having an excellent safety and electrical conductivity and also a broad potential window to be obtained. In formula (1), R1 to R3 are each independently an alkyl group of 1 to 5 carbons or a substituent having a reactive unsaturated bond and any two from among R1 to R3 may together form a ring, and R4 is methyl, ethyl or a substituent having a reactive unsaturated bond, with the proviso that at least one of R1 to R4 is a substituent having a reactive unsaturated bond. X is a monovalent anion, the letter m is an integer from 1 to 8, and the letter n is an integer from 1 to 4.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: March 25, 2008
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Kimiyo Banno, Kanako Yuyama, Kentaro Takagi, Gen Masuda, Takaya Sato