Having Particulate Or Fibrous Porous Mass Including A Sintered Mass Patents (Class 429/235)
  • Patent number: 10418661
    Abstract: A solid silicon secondary battery, by substitutions of silicon for lithium, enables decreasing of preparations cost and minimizing of environmental pollutions. By laminate pressing multiple times a positive or negative electrode material, the present invention enables increasing of the density of a positive or negative electrode active material, thereby increasing current density and capacity. By having mesh plates equipped inside the positive electrode active material and the negative electrode active material, the present invention enables effective moving of electrons. By enabling common use of an electrode, of a silicon secondary battery, connected during a serial connections of the silicon secondary battery, the present invention enables decreasing of the thickness of a silicon secondary battery assembly and increasing of output voltage. By being integrally formed with a PCB or a chip and supplying a power source, the present invention plays the role of a backup power source for instant discharging.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: September 17, 2019
    Assignee: REKRIX CO., LTD.
    Inventors: Byung Hoon Ryu, Jae Kyung Kong
  • Patent number: 10305136
    Abstract: A stack-type electrode assembly includes a lowermost electrode in a lowermost portion of the electrode assembly; an uppermost electrode in an uppermost portion of the electrode assembly; at least one unit stack between the lowermost electrode and the uppermost electrode, the at least one unit stack comprising a positive electrode, a negative electrode, and a separator disposed between the positive electrode and the negative electrode; and a plurality of separators between the lowermost electrode and unit stack, between the unit stacks, and between the unit stack and the uppermost electrode.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: May 28, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Juhee Sohn, Junwon Suh, Jeong-Doo Yi, Bongkyoung Park, Hyunhwa Song, Seokhun Hong, JuHyeong Han
  • Patent number: 10290854
    Abstract: Provided is a method of manufacturing paste for manufacturing of a negative electrode of a lithium ion secondary battery which contains a graphite material, a conductive auxiliary agent, a thickening agent, and a water-based binder. The method includes: a process (A) of dry-mixing the graphite material and the conductive auxiliary agent to prepare a mixture containing the graphite material and the conductive auxiliary agent; a process (B) of adding an aqueous solution, which contains the thickening agent, to the mixture, and wet-mixing the resultant mixture to prepare a paste precursor; and a process (C) of adding an aqueous emulsion solution, which contains the water-based binder, to the paste precursor, and additionally wet-mixing the resultant mixture to prepare the paste for manufacturing of a negative electrode.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: May 14, 2019
    Assignee: NEC ENERGY DEVICES, LTD.
    Inventor: Kou Ishiguchi
  • Patent number: 10243214
    Abstract: To increase the conductivity and electric capacity of an electrode which includes active material particles and the like and is used in a battery, a graphene net including 1 to 100 graphene sheets is used instead of a conventionally used conduction auxiliary agent and binder. The graphene net which has a two-dimensional expansion and a three-dimensional structure is more likely to touch active material particles or another conduction auxiliary agent, thereby increasing the conductivity and the bonding strength between active material particles. This graphene net is obtained by mixing graphene oxide and active material particles and then heating the mixture in a vacuum or a reducing atmosphere.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: March 26, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hiroatsu Todoriki, Junpei Momo, Teppei Oguni, Nobuhiro Inoue
  • Patent number: 10147543
    Abstract: A capacitor having first and second electrodes and a scaffold dielectric where at least one electrode comprises an electrically and ionically conducting material. The scaffold dielectric comprises an insulating material with a plurality of longitudinal channels extending across the dielectric and filled with a liquid comprising cations and anions. The plurality of longitudinal channels are substantially parallel and the liquid within the longitudinal channels generally has an ionic strength of at least 0.1. Capacitance results from the migrations of positive and negative ions in the confined liquid in response to an applied electric field. A method of supplying power to a load using the capacitor and a method of making the capacitor is additionally disclosed.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: December 4, 2018
    Assignee: The United States of America, as represented by the Secretary of the Navy
    Inventors: Jonathan Phillips, Claudia C. Luhrs
  • Patent number: 10044043
    Abstract: A battery electrode with a pasting textile, fabric, or scrim made with an electrode grid (e.g., a stamped grid or expanded metal grid) coated in battery electrode and covered with pasting textile formed of a bonded, non-woven fiber web. The web is formed from one or more fibers with an average length greater than 20 ?m. In various embodiments, the web is formed from one or more spun, continuous fibers. The battery electrode may be made in a continuous process where multiple grids are formed in a single sheet, coated with electrode active material and the scrim before being cut into individual electrodes.
    Type: Grant
    Filed: August 22, 2014
    Date of Patent: August 7, 2018
    Assignee: Johnson Controls Technology Company
    Inventors: Dennis A. Wetzel, Ramachandran Subbaraman, Christopher P. Kaniut, William J. Ross, Annette Holbrook, Jerome R. Heiman, Eric A. Sattler, Derrick L. Jennings, Donald Hennessey, Jr.
  • Patent number: 10033040
    Abstract: A manufacturing method of a battery electrode includes: (1) mixing Li2S particles with a binder to form a slurry, the binder including at least one of: (a) an ester moiety, (b) an amide moiety, (c) a ketone moiety, (d) an imine moiety, (e) an ether moiety, and (f) a nitrile moiety; and (2) disposing the slurry on a current collector.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: July 24, 2018
    Assignee: The Board of Trustees of the Leland Standford Junior University
    Inventors: Yi Cui, Zhi Wei Seh, Guangyuan Zheng
  • Patent number: 9728791
    Abstract: A self-sealing flow frame is provided having a first frame component and a second frame component. Each frame component is provided with a tongue-and-groove configuration that when assembled forms a tessellation engagement, which creates the seal. When each frame component is assembled into a flow frame, with the inner surfaces facing towards each other, the tongue-and-groove arrangements create a seal profile that circumscribe constituent parts of a device within which the self-sealing flow frame is being employed. As the frame components are compressively secured and fastened together, a tessellation engagement of the seal profile forms the fluid seal. Fluids of the device are prevented from exfiltrating the device, and are contained within the self-sealing flow frame by the fluid seal.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: August 8, 2017
    Assignee: Concurrent Technologies Corporation
    Inventors: Michel J. McCluskey, John Ellsworth Gover, Jr., Bryan P. Tipton, Kevin Anthony Weaver, Jennifer Lyne Kronick, David B. Berkey, Daniel R. Markiewicz
  • Patent number: 9634313
    Abstract: The present disclosure provides an anti-rotation mechanism for an electrode terminal post of a lithium-ion battery, the anti-rotation mechanism for the electrode terminal post of the lithium-ion battery is an insulative piece, the insulative piece is provided on an electrode terminal post base which is fixedly connected to the electrode terminal post, and the insulative piece is also fixedly connected to an inner wall of a battery case of the lithium-ion battery. The rotation of the electrode terminal post of the lithium-ion battery can be effectively prevented through the insulative piece which is provided on the electrode terminal post base and is fixedly connected to the inner wall of the battery case of the lithium-ion battery.
    Type: Grant
    Filed: March 3, 2014
    Date of Patent: April 25, 2017
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Quankun Li, Peng Wang, Pinghua Deng, Kai Wu
  • Patent number: 9559359
    Abstract: The lithium secondary battery positive electrode provided by the present invention has a positive electrode collector and a positive active material layer formed on the collector. The positive active material layer is composed of a matrix phase containing at least one particulate positive active material and at least one binder, and an aggregate phase dispersed in the matrix phase, constituted by aggregation of at least one particulate positive active material and containing substantially no binder.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: January 31, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomitaro Hara, Akira Tsujiko, Takeshi Abe, Sachie Yuasa, Keiko Wasada
  • Publication number: 20150132648
    Abstract: To inhibit degradation of charge and discharge cycle characteristics of a secondary battery. To suppress generation of defects due to expansion and contraction of an active material in a negative electrode. To inhibit deterioration of an electrode due to changes in its form. An electrode member including a current collector, an active material, and a porous body is used. The porous body is in contact with one surface of the current collector and includes a plurality of spaces. The active material is located in the space in the porous body. The space has a larger size than the active material.
    Type: Application
    Filed: October 30, 2014
    Publication date: May 14, 2015
    Inventors: Nobuhiro INOUE, Ryota TAJIMA, Naoki KURIHARA, Junpei MOMO
  • Patent number: 9023526
    Abstract: A positive active material for a rechargeable lithium battery includes pores having an average diameter of about 10 nm to about 60 nm and a porosity of about 0.5% to about 20%. Also disclosed is a method of preparing the positive active material, and a rechargeable lithium battery including the positive active material.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: May 5, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yu-Mi Song, Do-Hyung Park, Seon-Young Kwon, Min-Han Kim, Ji-Hyun Kim, Kyoung-Hyun Kim
  • Patent number: 9012092
    Abstract: An embodiment of the invention relates to providing an electrical component that provides an electrical functionality, the component comprising: a fiber felt comprising a tangle of fibers and characterized by a fill factor; and at least two layers of material formed on the fibers that contribute to providing the electrical functionality.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: April 21, 2015
    Assignee: Laor Consulting LLC
    Inventor: Herzel Laor
  • Patent number: 8980438
    Abstract: The porous metal foil of the present invention include a two-dimensional network structure composed of a metal fiber. This porous metal foil has a first side having a higher glossiness, and a second side having a lower glossiness located on the opposite side of the first side. The ratio of glossiness GS of the first side to glossiness GM of the second side, GS/GM, as measured at incident and reflection angles of 60 degrees in accordance with JIS Z 8741 (1997) is from 1 to 15. The present invention provides a highly useful porous metal foil which has a reduced difference in properties between both sides, in addition to the superior properties attributable to a porous metal foil, in a highly productive and cost effective manner that is suited for continuous production.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: March 17, 2015
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tetsuhiro Matsunaga, Hajime Watanabe, Joe Nishikawa
  • Publication number: 20150064569
    Abstract: A current collector, an electrode structure, a non-aqueous electrolyte battery, and an electrical storage device capable of achieving superior shut down function, are provided. According to the present invention, a current collector 1 having a resin layer 5 on at least one side of a conductive substrate 3, the resin layer 5 including a fluorine-based resin and conductive particles 11, and having a thickness of 0.3 to 20 ?m, the current collector satisfying at least one of the following characteristics of (1) to (3): (1) average particle diameter of the conductive particles is 0.5 to 25 ?m, and a surface occupying ratio of the conductive particles at the surface of the resin layer is 10 to 50%, (2) resistance of the surface of the resin layer at 20° C. is 1.0 to 10?, and resistance after heating at 220° C. is 200 to 600?, and (3) resistance of the surface of the resin layer at 20° C. is 1.8 to 9.7?, and resistance after heating at 180° C. is 209 to 532?, is provided.
    Type: Application
    Filed: April 2, 2013
    Publication date: March 5, 2015
    Applicants: UACJ CORPORATION, UACJ Foil Corporation
    Inventors: Osamu Kato, Sohei Saito, Yukiou Honkawa, Mitsuyuki Wasamoto, Tsugio Kataoka, Satoshi Yamabe
  • Patent number: 8968424
    Abstract: Provided is a flat plate electrode cell, comprises positive electrode plates and negative electrode plates. The positive electrode plates each comprise manganese and compressed metal foam. The negative electrode plates each comprise zinc and compressed metal foam. Both the positive and negative electrodes can have alignment tabs, wherein the flat plate electrode cell can further comprise electrical terminals tanned from the aligned tabs. The rechargeable flat plate electrode cell of the present disclosure, formed from compressed metal foam, provides both low resistance and high rate performance to the electrodes and the cell. Examples of improvements over round bobbin and flat plate cells are current density, memory effect, shelf life, charge retention, and voltage level of discharge curve. In particular, the rechargeable flat plate electrode cell of the present disclosure provides longer cycle life with reduced capacity fade as compared with known round bobbin and flat plate cells.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: March 3, 2015
    Assignee: Encell Technology, Inc.
    Inventor: Randy Gene Ogg
  • Patent number: 8956764
    Abstract: An electrode plate includes a current collector, the current collector being made of metal and having a 3-dimensional mesh structure, and an active material portion including an active material, the active material portion being inserted into a vacant space in the current collector and coated on top and bottom surfaces of the current collector.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: February 17, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Manseok Han, Jongki Lee, Taesik Kim, Byungjoo Chung, Juhee Sohn, Seonggi Choo, Kyun Lim
  • Publication number: 20150030936
    Abstract: Composite particles for an electrochemical device electrode including an electrode active material and a binding agent and having surfaces thereof coated with an external additive A, wherein at least one kind of the external additive A has a powder resistance of less than 10 ?·cm, and, in the case where three axial diameters of the external additive A are a length diameter LA, a thickness tA, and a width bA, the length diameter LA is 0.1 to 5 ?m and a ratio (bA/tA) between the width bA and the thickness tA is 5 or more and less than 50.
    Type: Application
    Filed: December 27, 2012
    Publication date: January 29, 2015
    Inventor: Taku Matsumura
  • Publication number: 20150017500
    Abstract: The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; a conductive layer formed on the electrode active material layer and comprising a conductive material and a binder; and a first porous supporting layer formed on the conductive layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surfaces thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.
    Type: Application
    Filed: September 4, 2014
    Publication date: January 15, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Publication number: 20140377637
    Abstract: Provided is a sodium secondary battery including a graphite felt having a maximum porosity on a surface facing a solid electrolyte and a decreased porosity in a thickness direction, as a cathode current collector impregnated with an electrolyte.
    Type: Application
    Filed: June 19, 2014
    Publication date: December 25, 2014
    Inventors: Young Shol Kim, Ku Bong Chung, Jeong Soo Kim
  • Patent number: 8900750
    Abstract: A catalyst including: a plurality of porous clusters of silver particles, each cluster of the clusters including: (a) a plurality of primary particles of silver, and (b) crystalline particles of zirconium oxide (ZrO2), wherein at least a portion of the crystalline particles of ZrO2 is located in pores formed by a surface of the plurality of primary particles of silver.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: December 2, 2014
    Assignee: Bar-Ilan University
    Inventors: Ernst Khasin, Arie Zaban
  • Patent number: 8889290
    Abstract: An electrode for a lithium-ion secondary battery includes a collector of copper or the like, an electrode material layer being form on one surface and both surfaces of the collector and including an active material and a binder, and a binder-rich layer being formed in a dot shape or a stripe shape with a predetermined interval in the interface between the collector and the electrode material layer and having a binder concentration higher than that of the electrode material layer. Accordingly, a concentration gradient of the binder is provided to the surface of the collector. By arranging the binder-rich layer at a predetermined interval, it is possible to improve the adhesiveness between the collector and the electrode material layer due to an anchor effect and to guarantee conductivity between the collector and the electrode material layer.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: November 18, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Takaaki Suzuki, Etsuko Nishimura, Toshio Abe, Chieko Araki
  • Publication number: 20140335441
    Abstract: A method for producing a porous metallic body at least includes a step of forming an electrically conductive coating layer on a surface of a skeleton of a three-dimensional network resin having a continuous pore by coating the surface with a coating material containing a carbon powder having a volume-average particle size of 10 ?m or less and at least one fine powder having a volume-average particle size of 10 ?m or less and selected from the group consisting of metal fine powders and metal oxide fine powders; a step of forming at least one metal plating layer; and a step of performing a heat treatment to remove the three-dimensional network resin and to cause reduction and thermal diffusion in the at least one metal or metal oxide fine powder and the at least one metal plating layer.
    Type: Application
    Filed: December 4, 2012
    Publication date: November 13, 2014
    Inventors: Kengo Tsukamoto, Hitoshi Tsuchida, Hidetoshi Saito, Junichi Nishimura
  • Patent number: 8846252
    Abstract: A battery electrode with a pasting textile, fabric, or scrim made with an electrode grid (e.g., a stamped grid or expanded metal grid) coated in battery electrode and covered with pasting textile formed of a bonded, non-woven fiber web. The web is formed from one or more fibers with an average length greater than 20 ?m. In various embodiments, the web is formed from one or more spun, continuous fibers. The battery electrode may be made in a continuous process where multiple grids are formed in a single sheet, coated with electrode active material, and the scrim before being cut into individual electrodes.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: September 30, 2014
    Assignee: Johnson Controls Technology Company
    Inventors: Dennis A. Wetzel, Ramachandran Subbaraman, Christopher P. Kaniut, William J. Ross, Annette Holbrook, Jerome R. Heiman, Eric A. Sattler, Derrick L. Jennings, Donald Hennessey, Jr.
  • Publication number: 20140287306
    Abstract: An electrode material is provided. The electrode material includes a porous carbon material, wherein the porous carbon material has a half-width of diffraction intensity peak of a (100) face or a (101) face of 4 degrees or less with reference to a diffraction angle 2 theta on a basis of an X-ray diffraction method. An absolute value of a differential value of mass can be obtained when a mixture of the porous carbon material and S8 sulfur mixed at a mass ratio of 1:2 is subjected to thermal analysis, where temperature is employed as a parameter, has a value of more than 0 at 450° C. and a value of 1.9 or more at 400° C. A battery and method of manufacture are also provided.
    Type: Application
    Filed: July 19, 2013
    Publication date: September 25, 2014
    Applicant: Sony Corporation
    Inventors: Kazumasa Takeshi, Seiichiro Tabata, Hironori Iida, Shun Yamanoi, Yosuke Saito, Koichiro Hinokuma, Shinichiro Yamada
  • Patent number: 8841030
    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: Grant
    Filed: January 24, 2012
    Date of Patent: September 23, 2014
    Assignee: Enovix Corporation
    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
  • Patent number: 8822081
    Abstract: An electrode structure and an electrochemical cell including the electrode structure are provided. The electrode structure includes a porous three-dimensional (3D) outer net including an interconnected plurality of outer metal lines that define a plurality of outer holes between adjacent ones of the outer metal lines. The outer metal lines include a porous 3D inner net, a first layer coating the inner net, and a second layer coating the first layer. The inner net includes an interconnected plurality of inner metal lines that define a plurality of inner holes between adjacent ones of the inner metal lines. The inner metal lines include a first metal. The first layer includes a second metal. The second layer includes a third metal.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 2, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyun-Ki Park, Jeong-Doo Yi, Ju-Yong Kim, Dong-Hee Han
  • Publication number: 20140234720
    Abstract: The invention offers an electrode material that can accomplish both high capacity and high output and a battery, a nonaqueous-electrolyte battery, and a capacitor all incorporating the electrode material. The electrode material has a sheet-shaped aluminum porous body carrying an active material. The above-described aluminum porous body has a skeleton structure that is formed of an aluminum layer and that has a vacant space at the interior. When observed by performing cutting in a direction parallel to the direction of thickness of the sheet, the above-described vacant space in the skeleton structure has an average area of 500 ?m2 or more and 6,000 ?m2 or less.
    Type: Application
    Filed: October 9, 2012
    Publication date: August 21, 2014
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Kazuki Okuno, Kengo Goto, Koutarou Kimura, Hajime Ota, Junichi Nishimura, Akihisa Hosoe
  • Patent number: 8778540
    Abstract: A monolithic three-dimensional electrochemical energy storage system is provided on an aerogel or nanotube scaffold. An anode, separator, cathode, and cathodic current collector are deposited on the aerogel or nanotube scaffold.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: July 15, 2014
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Joseph Collin Farmer, Michael Stadermann
  • Patent number: 8771543
    Abstract: A conductive reinforcing material used to form a negative electrode material is provided in the present invention. The conductive reinforcing material includes metal shavings containing elements selected from a group consisting of group II elements, group III elements and group VII elements. A negative electrode material and a negative electrode both with the conductive reinforcing material are also provided in the present invention.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: July 8, 2014
    Assignee: iNNOT BioEnergy Holding Co.
    Inventor: Chungpin Liao
  • Patent number: 8748036
    Abstract: A negative electrode active material of a non-aqueous secondary battery of the present invention includes a first active material, a second active material, and a third active material. The first active material is a carbon material having a D/G ratio of 0.15 or less, where G represents the peak intensity observed in a Raman spectrum from 1578 to 1592 cm?1 and D represents the peak intensity observed in a Raman spectrum from 1349 to 1353 cm?1 of Raman spectroscopy. The D50 of the second active material is 10 ?m or less. The second active material includes at least one of a first carbon material having the D/G ratio of 0.2 to 2.0 and a second carbon material having the D/G ratio of 1.0 to 2.0. The D50 of the third active material is 5 ?m or less. The third active material contains silicon and oxygen as constituent elements.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: June 10, 2014
    Assignee: Hitachi, Ltd.
    Inventor: Takashi Konishi
  • Patent number: 8734989
    Abstract: A negative electrode for rechargeable lithium batteries includes a current collector, a porous active material layer having a metal-based active material disposed on the current collector, and a high-strength binder layer on the porous active material layer. The high-strength binder layer has a strength ranging from 5 to 70 MPa. The negative active material for a rechargeable lithium battery according to the present invention can improve cycle-life characteristics by suppressing volume expansion and reactions of an electrolyte at the electrode surface.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: May 27, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Min Lee, Nam-Soon Choi, Goo-Jin Jeong, Yong-Mook Kang, Min-Seok Sung, Wan-Uk Choi, Sung-Soo Kim
  • Publication number: 20140113201
    Abstract: A method for producing a porous element is presented. A powdery metal-ceramic composite material is produced. The composite material has a metal matrix and a ceramic portion amounting to less than 25 percent by volume. The metal matrix is at least partially oxidized to obtain a metal oxide. The metal-ceramic composite material is grinded and mixed with powdery ceramic supporting particles to obtain a metal-ceramic/ceramic mixture. The metal-ceramic/ceramic mixture is shaped into the porous element. The porous element can be used as an energy storage medium in a battery.
    Type: Application
    Filed: April 3, 2012
    Publication date: April 24, 2014
    Inventors: Ines Becker, Horst Greiner
  • Patent number: 8697289
    Abstract: A battery electrode, includes: a collector; and an active material layer formed on a surface of the collector and including: an active material, and a conductive additive having a bulk density which is gradually decreased in a direction from a collector side of the active material layer to a surface side of the active material layer.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: April 15, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Chizuru Matsuyama, Takuya Kinoshita, Kyouichi Watanabe, Yoshinori Naruoka
  • Patent number: 8663840
    Abstract: Methods of making a cathode element for an electrochemical cell. The methods comprise providing hollow carbon nanotubes and a sulfur source in a closed environment. Sulfur is deposited within an interior of the hollow carbon nanotube. The method includes cleaning an exterior surface of the carbon nanotubes and incorporating the carbon nanotubes into a cathode element. A cathodic material for a lithium-sulfur electrochemical cell is also provided. The material comprises a plurality of stacked-cone carbon nanotubes. Each nanotube defines a hollow interior and has a substantially continuous exterior surface area. Elemental sulfur is disposed within the hollow interior of each nanotube.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: March 4, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Gholam-Abbas Nazri, David Burton, Maryam Nazri, Patrick D. Lake, Andrew Palmer, Max L. Lake
  • Publication number: 20140050988
    Abstract: An apparatus including a layer of electrically conductive material with an open interconnected wall structure of electrically conductive material formed thereon, the open interconnected wall structure having a gyroid structure including one or more open pores into which an active material for use in generating and/or storing electrical charge can be deposited, wherein the layer of electrically conductive material and the open interconnected wall structure together form a charge collector which provides an electrical path from the active material for the generated and/or stored electrical charge.
    Type: Application
    Filed: August 17, 2012
    Publication date: February 20, 2014
    Inventors: Di WEI, Yinglin LIU, Piers ANDREW, Markku ROUVALA, Chris BOWER, Teuvo Tapani RYHANEN
  • Publication number: 20140030605
    Abstract: The present invention relates to a battery having an electrode structure using metal fiber and a preparation method of an electrode structure. A preparation method of an electrode structure, according to one embodiment of the present invention, includes a step for providing one or more metal fibers forming a conductive network; a step for providing particle compositions including electrical active materials of a particle shape; a step for mixing the metal fibers and the particle compositions; and a step for compressing the mixed metal fibers and the particle compositions.
    Type: Application
    Filed: April 4, 2012
    Publication date: January 30, 2014
    Applicant: SHINE CO., LTD
    Inventors: Chang Hyeon Kim, Lee Hyun Shin, Chul Hwan Kim
  • Publication number: 20140030604
    Abstract: An embodiment of the invention relates to providing an electrical component that provides an electrical functionality, the component comprising: a fiber felt comprising a tangle of fibers and characterized by a fill factor; and at least two layers of material formed on the fibers that contribute to providing the electrical functionality.
    Type: Application
    Filed: April 4, 2012
    Publication date: January 30, 2014
    Applicant: Laor Consulting LLC
    Inventor: Herzel Laor
  • Patent number: 8609287
    Abstract: Compounds may have general Formula I, II, or III: where R1, R2, R3, and R4 are independently H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, a polyether group; or R1 and R2, or R3 and R4, or R2 and R3 (in the case of Formula II) may join together to form a fused ring on the benzene ring; and X and Z are independently a group of Formula A: where R5 and R6 and R7 are independently H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, or a polyether group; R7 is H, F, Cl, Br, CN, NO2, a alkyl group, a haloalkyl group, a phosphate group, or a polyether group; n is an integer from 1 to 8; and m is an integer from 1 to 13. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: December 17, 2013
    Assignee: Uchicago Argonne, LLC
    Inventors: Zhengcheng Zhang, Lu Zhang, Khalil Amine
  • Patent number: 8592082
    Abstract: A secondary battery includes an electrode assembly, which has improved safety by reducing a density of an active material centrally positioned in the electrode assembly. In the secondary battery, an electrode assembly includes a first electrode plate, a second electrode plate and a separator between the first electrode plate and the second electrode plate, the first electrode plate including a first electrode current collector and a first active material layer on the first electrode current collector, the first active material layer including a first active material, a binder and a conductive agent, and a portion of the first active material layer at a central portion of the electrode assembly including the first active material at a lower density than a density of the first active material at a portion of the first active material layer at a peripheral portion of the electrode assembly.
    Type: Grant
    Filed: July 18, 2012
    Date of Patent: November 26, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chanho Lee, Kiwoon Kim, Young Ju Ahn, Jinho Lee, Junpyo Park
  • Patent number: 8580438
    Abstract: A monolithic three-dimensional electrochemical energy storage system is provided on an aerogel or nanotube scaffold. An anode, separator, cathode, and cathodic current collector are deposited on the aerogel or nanotube scaffold.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: November 12, 2013
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Joseph C. Farmer, Michael Stadermann
  • Patent number: 8546017
    Abstract: Provided is a composite for anode material, a method of manufacturing the composite for anode material, and a cathode and a lithium battery that includes the composite for anode material, and more particularly, to a composite for anode material that has a large charge and discharge capacity and a high capacity retention, a method of manufacturing the composite for anode material, and a cathode and a lithium battery that includes the composite for anode material. Also, the composite for anode material in which Si or Si and carbon are distributed in silicon oxide particles is provided.
    Type: Grant
    Filed: May 30, 2008
    Date of Patent: October 1, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-kook Mah, Han-su Kim
  • Patent number: 8497026
    Abstract: A porous metal foil of the present invention comprises a two-dimensional network structure composed of metal fibers. This porous metal foil has superior properties and can be obtained in a highly productive and cost effective manner.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: July 30, 2013
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tetsuhiro Matsunaga, Hajime Watanabe, Joe Nishikawa, Tetsuro Sato
  • Patent number: 8497037
    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: Grant
    Filed: July 2, 2012
    Date of Patent: July 30, 2013
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Toyama Co., Ltd.
    Inventors: Akihisa Hosoe, Kazuki Okuno, Hajime Ota, Koutarou Kimura, Kengo Goto, Hideaki Sakaida, Junichi Nishimura
  • Patent number: 8481214
    Abstract: An electrode including structures configured to prevent an intercalation layer from detaching from the electrode and/or a structure configured to create a region on the electrode having a lower concentration of intercalation material. The electrode includes a support filament on which the intercalation layer is disposed. The support filament optionally has nano-scale dimensions.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: July 9, 2013
    Assignee: Catalyst Power Technologies
    Inventor: Ronald Anthony Rojeski
  • Patent number: 8465875
    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: Grant
    Filed: May 30, 2012
    Date of Patent: June 18, 2013
    Assignees: Sumitomo Electric Industries, Ltd., Sumitomo Electric Toyama Co., Ltd.
    Inventors: Akihisa Hosoe, Kazuki Okuno, Hajime Ota, Koutarou Kimura, Kengo Goto, Hideaki Sakaida, Junichi Nishimura
  • Patent number: 8465874
    Abstract: In a lithium-ion secondary battery of the present invention, the electrical resistivity of the mixture of a positive electrode active material, an electrically conductive member, and a binder is 0.1 ?cm or more but 1 ?cm or less. The positive and negative electrodes each have an electrical capacity of 10 mAh or more but 50 mAh or less per volume of a rectangular parallelepiped that has a 1 cm2 square base on a face of the electrode of one polarity facing the electrode of the other polarity and that has a height equal to the thickness of the electrode of the one polarity at the square base. Used as the negative electrode thereof is a negative electrode formed by sintering graphite powder, non-graphitizing carbon, and fibrous powder retained in the pores of a porous metal structure in an inert gas atmosphere at a temperature of between 600 and 1000° C.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: June 18, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Naoto Nishimura, Motoaki Nishijima, Shinsuke Kobayashi
  • Patent number: 8460827
    Abstract: A rechargeable battery including a cathode and an anode each capable of inserting and extracting an electrode reaction material, and including an electrolyte, in which the anode includes an anode current collector which is formed by including a current collector body. The anode current collector is provided thereon with an active anode material layer, and a plurality of conductive particles disposed on the surface of the current collector body with the surface facing the active anode material layer. The plurality of conductive particles is formed to include spherical particles and plate-like particles. Since a tridimensional structure having irregularities is formed on the surface of the current collector body with the spherical particles and plate-like particles, anchoring effects are greatly increased. As a result, the adhesion of the active anode material layer to the anode current collector is considerably improved.
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: June 11, 2013
    Assignee: Sony Corporation
    Inventors: Masayuki Iwama, Kenichi Kawase, Takakazu Hirose
  • Patent number: 8399131
    Abstract: Disclosed is a composite negative electrode active material including a graphitizable carbon material containing a layered structure formed of stacked carbon layers partially having a three-dimensional regularity, and a low crystalline carbon material. A negative electrode including the composite negative electrode active material is used to produce a non-aqueous electrolyte secondary battery. The non-aqueous electrolyte secondary battery thus produced has a high energy density and demonstrates a high output/input performance for a long period of time in various environments of high to low temperatures.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Yoshiyuki Ozaki, Hiroyuki Fujimoto
  • Patent number: 8399134
    Abstract: A lead acid battery includes a housing and at least one cell disposed within the housing. Each cell includes at least one positive plate and at least one negative plate and an electrolyte disposed in a volume between the positive and negative plates. The at least one negative plate includes a current collector, consisting essentially of a layer of carbon foam disposed on a substrate, and a chemically active material disposed on the current collector.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: March 19, 2013
    Assignee: Firefly Energy, Inc.
    Inventors: Kurtis C. Kelley, Matthew J. Maroon