Open Mesh Or Perforated Plate Patents (Class 429/241)
  • Patent number: 11196045
    Abstract: Methods of forming a lithium-based negative electrode assembly are provided. A surface of a metal current collector is treated with a reducing plasma gas so that after the treating, a treated surface of the metal current collector is formed that has a contact angle of less than or equal to about 10° and has less than or equal to about 5% metal oxides. The metal current collector may include a metal, such as copper, nickel, and iron. A lithium metal is applied to the treated surface of the metal current collector in an environment substantially free from oxidizing species. Lithium metal flows over and adheres to the treated surface to form a layer of lithium. The layer of lithium may be a thin layer having a thickness of ?about 1 ?m to ?about 75 ?m thus forming the lithium metal negative electrode assembly.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: December 7, 2021
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Gayatri V. Dadheech, Li Yang, Mark W. Verbrugge
  • Patent number: 11165106
    Abstract: Lithium ion batteries and cells, as well as operating and testing methods are provided, which utilize a transparent pouch to monitor the battery in operational condition and/or in operation. Transparent parts of the pouch may be used for direct sensing of cell elements. Removable covers may be used to protect battery components from illumination damage. Indicators in the transparent pouch may be associated with cell components such as electrodes and electrolyte to indicate their condition. External sensors may be used to derive data from the indicators, and bi-directional electromagnetic (e.g., optical) communication may be established through the transparent pouch, to enhance monitoring and spare physical electrical connections. For example, the transparent pouch may be used to monitor and enhance battery safety and/or to modify operational parameters non-destructively, during operation of the battery.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: November 2, 2021
    Assignee: Storedot Ltd.
    Inventors: Ron Paz, Yaniv Damtov, Leonid Krasovitsky, Ohad Goldbart, Simon Litsyn, Daniel Aronov
  • Patent number: 11139480
    Abstract: A secondary battery includes: a positive electrode having a positive-electrode current collector and a positive-electrode active-material layer; a negative electrode having a negative-electrode current collector and a negative-electrode active-material layer; a electrolyte; and an insulating tape covering a portion of the positive electrode. Furthermore, the positive-electrode current collector has an exposed section that the positive-electrode active-material layer is not disposed. In addition, at least a portion of the exposed section is covered with the insulating tape; the insulating tape has a substrate material layer and an adhesive layer; and the adhesive layer includes an adhesive agent and an insulating inorganic material.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: October 5, 2021
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Tomoki Shiozaki, Yuji Oura, Hajime Nishino
  • Patent number: 11108088
    Abstract: A method produces a laminate-type battery which can suppress short-circuiting even when a positioning guide is used. The method for producing a laminate-type battery having a first current collector layer, a first active material layer, a solid electrolyte layer or a separator layer, a second active material layer, and a second current collector layer laminated in this order, the method includes arranging a first layer along a first contact surface of a positioning guide, rotating the positioning guide, and thereafter arranging a second layer on the arranged first layer along a second contact surface of the positioning guide. The first layer and the second layer are different from each other and include an arbitrary layer selected from the first current collector layer, the first active material layer, the solid electrolyte layer or the separator layer, the second active material layer, and the second current collector layer.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: August 31, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Keisuke Morita
  • Patent number: 10938071
    Abstract: The disclosed technology relates to a battery cell that includes a battery can having a receptacle and a cover. The battery cell also includes multiple electrode layers that are disposed within the receptacle, wherein a first layer of the plurality of electrode layers is coupled to the cover, and a second layer of the plurality of electrode layers is coupled to the receptacle. In some aspects, the cover includes a conductive feedthrough having a vent. A battery-powered device and method of manufacturing a battery cell are also provided.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 2, 2021
    Assignee: Apple Inc.
    Inventors: Yuriy Y. Londarenko, Shabab Amiruddin
  • Patent number: 10818930
    Abstract: An electrical storage device includes high surface area fibers (e.g., shaped fibers and/or microfibers) coated with carbon (graphite, expanded graphite, activated carbon, carbon black, carbon nanofibers, CNT, or graphite coated CNT), electrolyte, and/or electrode active material (e.g., lead oxide) in electrodes. The electrodes are used to form electrical storage devices such as electrochemical batteries, electrochemical double layer capacitors, and asymmetrical capacitors.
    Type: Grant
    Filed: November 15, 2016
    Date of Patent: October 27, 2020
    Assignees: CPS Technology Holdings LLC, Clarios Germany GmbH & Co. KGAA
    Inventors: Richard M. Sturgeon, Dennis A. Wetzel, Robert G. Gruenstern, William J. Wruck, Ramachadran Subbaraman, James Symanski, Eberhard Meissner
  • Patent number: 10541441
    Abstract: A lithium ion battery having desirable safety performance includes a positive electrode having a positive electrode active material layer, a negative electrode having a negative electrode active material layer, a separator between the positive electrode and the negative electrode, and electrolyte. The positive electrode active material layer is provided with a first recess and a positive lead is soldered in the first recess. The negative electrode active material layer is provided with a second recess and a negative lead is soldered in the second recess. Upper and lower surfaces of the positive lead each is formed with a first insulating glue layer. Surface of the positive electrode active material layer corresponding to the second recess is pasted with a second insulating glue layer.
    Type: Grant
    Filed: January 14, 2015
    Date of Patent: January 21, 2020
    Assignee: Ningde Amperex Technology Limited
    Inventors: Tao Tao, Ming Iiang Mo
  • Patent number: 10158108
    Abstract: When cellulose is used as a separator, the cellulose is impregnated with an ionic liquid. Charge and discharge are repeated with this separator touching a surface of a current collector; then, the separator is changed in color. Thus, it is an object to provide a power storage device with a structure in which a side reaction other than a battery reaction, e.g., a change in color of separator, is unlikely to occur. In the power storage device, a separator impregnated with an ionic liquid is not in contact with a surface of a current collector. The separator has a tubular shape, a bag-like shape, or a sheet-like shape. The separator includes cellulose. The power storage device including the ionic liquid is non-volatile and non-flammable. The power storage device can be bent.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: December 18, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kazuhei Narita, Jun Ishikawa, Teppei Oguni, Aya Uchida
  • Patent number: 9985287
    Abstract: Disclosed is an electrode including a current collector and an electrode material layer formed on the current collector, the electrode material layer including a first electrode material layer and second electrode material layer having different electrode active materials.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: May 29, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Kyoung Ho Kim, In Sung Uhm, Ji Yoon Kwon, Hoe Jin Hah, Il Hong Kim
  • Patent number: 9929438
    Abstract: A method of manufacturing a lithium ion battery includes: attaching a lid to a first main surface of a first substrate, the lid including a conductive coves element; forming a cavity between the lid and the first substrate; forming an anode comprising a component made of a semiconductor material at the first substrate; forming a cathode at the lid; and filling an electrolyte into the cavity.
    Type: Grant
    Filed: February 8, 2017
    Date of Patent: March 27, 2018
    Assignee: Infineon Technologies AG
    Inventors: Kamil Karlovsky, Rafael Janski, Michael Sorger, Magdalena Forster, Katharina Schmut, Vijaye Kumar Rajaraman, Rainer Leuschner, Bernhard Goller
  • Patent number: 9899708
    Abstract: The present invention relates to an electrode assembly of a porous structure and a secondary battery including the same. In an electrode assembly including a plurality of cathodes, anodes, and separators, the present invention provides a secondary battery including an electrode assembly including one or more through holes, and a passing sealing portion supplementarily sealed on positions corresponding to the through holes. The secondary battery according to the present invention may prevent the inner short and increase safety by including the fused portion of an electrode assembly and a battery case, stably fixing them, and holding back the movement of the electrode assembly. In addition, the present invention has an effect of being capable of greatly enhancing impregnation on electrolyte since the electrode assembly has a porous structure.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: February 20, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Soo Young Kim, Young Joon Shin, Hyo Seok Park
  • Patent number: 9825303
    Abstract: A storage battery grid includes: a frame bone that includes a substantially rectangular shape; a lug portion that is connected to a first side portion of the frame bone and projects outwardly from the frame bone; a main bone that extends from the first side portion to a second side portion which is opposed to the first side portion; and a plurality of first sub-bones that extend obliquely toward the second side portion, at least part of the plurality of first sub-bones branching from the main bone toward both sides, wherein at least part of the plurality of first sub-bones is bent.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: November 21, 2017
    Assignee: GS Yuasa International Ltd.
    Inventors: Kiyoshi Nouzuka, Kazuma Saito, Hiroyuki Ishiguro, Kohei Fujita, Shota Iwasaki, Junichi Nishizawa
  • Patent number: 9793553
    Abstract: A method for manufacturing a separator assembly includes a preparation step for preparing a first separator, a second separator, and an elastic member; a first placement step for positioning the elastic member and placing the same on a placement surface; a second placement step for positioning the first separator in relation to the elastic member, and placing the first separator so as to overlap the elastic member; and a joining step for joining the elastic member and first separator which have been positioned and made to overlap. In the second placement step, the first separator is made to overlap the elastic member while first positioning members for positioning the elastic member are made to retract into the placement surface.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: October 17, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasuhiro Numao, Hiroshi Miyaoka, Takayuki Hirao
  • Patent number: 9570728
    Abstract: An electricity supply element and the ceramic separator thereof are provided. The ceramic separator is adapted to separate two electrode layers of the electricity supply element for permitting ion migration and electrical separation. The ceramic separator is made of ceramic particulates and the adhesive. The adhesive employs dual binder system, which includes linear polymer and cross-linking polymer. The adhesion and heat tolerance are enhanced by the characteristic of the two type of polymers. The respective position of the two electrode layers are maintained during high operation temperature to improve the stability, and battery performance. Also, the ceramic separator enhances the ion conductivity and reduces the possibility of the micro-short to increase practical utilization.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: February 14, 2017
    Assignee: PROLOGIUM HOLDING INC.
    Inventor: Szu-Nan Yang
  • Patent number: 9570227
    Abstract: Disclosed is a magnetic excitation coil structure including a magnetic coil sheet formed of a thin film and rolled as a cylindrical body with a hollow hole, and an insulation layer covering the outer surface of the cylindrical body formed by the magnetic coil sheet for protection. The magnetic coil sheet includes a flexible substrate, a dielectric layer attached to the flexible substrate, and a plurality of patterned circuit layers embedded in the flexible substrate and in contact with the dielectric layer. Each patterned circuit layer is separate, and the upper surfaces of the patterned circuit layers and the upper surface of the flexible substrate form a co-plane. The magnetic coil structure provides an electrical function of coil, which is enhanced by the patterned circuit layer due to its high aspect ratio of the electrical circuit, thereby greatly increasing the whole magnetic flux and electromagnetic effect.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: February 14, 2017
    Assignee: KINSUS INTERCONNECT TECHNOLOGY CORP.
    Inventors: Ting-Hao Lin, Chiao-Cheng Chang, Yi-Nong Lin
  • Patent number: 9455448
    Abstract: A current collector in the form of a conductive substrate subjected to a special chemical etch to provide the current collector having a multi-thickness structure, is described. The multiple-thickness current collector structure provides an electrochemical cell with increased charge capacity per volume while enabling a robust weld connection thereto. The current collector has a frame and comprises within an inner perimeter of the frame, first strand structures that intersect second strand structures to provide a plurality of openings or interstices bordered by the strands. At least one tab portion having a thicker distal portion spaced from a thinner proximal tab portion that extends from an outer perimeter of the frame.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: September 27, 2016
    Assignee: Greatbatch Ltd.
    Inventors: Kenneth B. Talamine, Lou Serpe, Gary L. Freitag
  • Patent number: 9359508
    Abstract: A water-based slurry composition contains (1) a water-based medium containing at least water as a polar solvent, (2) at least one polymer selected from cellulose derivatives, alginic acid derivatives, starch derivatives, chitin derivatives, chitosan derivatives, polyallylamine and polyvinylamine, (3) a hydrophobic filler, and (4) a polybasic acid or a derivative thereof. The composition has a water content of 30 mass % or higher. An electrode plate for an electricity storage device, and the electricity storage device are also disclosed.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: June 7, 2016
    Assignee: DAINICHISEIKA COLOR & CHEMICALS MFG. CO., LTD.
    Inventors: Nobuyuki Kobayashi, Takanori Sannan, Shinya Tsuchida, Yoshihiko Iijima
  • Patent number: 9105930
    Abstract: An electricity supply system and electricity supply element thereof is provided. The electricity supply system is made of a plurality of electricity supply elements by stacking or rolling. Each electricity supply element includes a substrate, two current collector layers and two active material layers. The substrate has a plurality of holes and the current collector layers, the active material layers are disposed on two sides respectively. Therefore, the ion migration is permitted by the holes and the electricity is outputted by the current collector layers. Hence, by this new structure of the electricity supply element, the resistance is decreased.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: August 11, 2015
    Assignee: PROLOGIUM HOLDING INC.
    Inventor: Szu-Nan Yang
  • Patent number: 9099721
    Abstract: Provided is a secondary battery including an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The positive electrode includes a positive electrode non-coating portion that is not coated with an active material in a portion of a positive electrode collector. The negative electrode includes a negative electrode non-coating portion that is not coated with an active material in a portion of a negative electrode collector. The non-coating portions are disposed in at least one of upper and lower portions of the electrode assembly in a longitudinal direction of the electrodes. A positive electrode tab and a negative electrode tab are connected to the non-coating portions. The separator is a complex porous separator including a substrate coated with a binder polymer or an organic/inorganic mixture formed of a binder polymer and inorganic particles.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: August 4, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Jong Hwan Kim, Han Ho Lee
  • Patent number: 9048504
    Abstract: A secondary battery electrode includes an active material layer configured to be provided on a current collector and be obtained by stacking a plurality of active material sub-layers composed of an active material. Pores of which pore diameter along a thickness direction of the active material layer is 3 to 300 nm are formed along a boundary between the active material sub-layers, and at least a part of the pores is filled with an electrolyte and/or a product arising from reduction of the electrolyte upon assembling of a secondary battery.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: June 2, 2015
    Assignee: SONY CORPORATION
    Inventors: Momoe Adachi, Isamu Konishiike, Kenichi Kawase
  • Publication number: 20150125756
    Abstract: Provided are a current collector for a battery, including: a base material; adhesive layers positioned on the base material; and metal mesh layers positioned on the adhesive layers, in which the metal mesh layer includes a plurality of metal mesh patterns, and holes positioned between the metal mesh patterns, and a method of manufacturing the same. An active material is applied onto the metal mesh layer through the holes of the metal mesh layer, and thus a contact area of the metal mesh layer and the active material is increased, so that it is possible to restrict the active material from being deintercalated from the current collector and improve a cycle lifespan property of a battery.
    Type: Application
    Filed: April 22, 2013
    Publication date: May 7, 2015
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Man Kim, Joo Yul Lee, Sang Yeoul Lee, Yong Soo Jeong, Do Yon Chang, Kyu Hwan Lee, Cheol Nam Yang, Chang Rae Lee, Seong Bong Yim, Dong Chan Lim, Jae Hong Lim, Young Sup Song, Sung Mo Moon, Su Sub Cha
  • Publication number: 20150104715
    Abstract: An electrochemical battery is disclosed. The electrochemical battery has an electrode plate comprising a frame and a generally flat grid connected to the frame, the frame comprising at least a top frame member having a contact lug, wherein the grid comprises a plurality of grid wires and a plurality of window-like open areas between the grid wires, further comprising an active mass within the open areas and/or on the grid wires, wherein the electrode plate comprises on one outer surface or on both opposing outer surfaces of the active mass a pattern of grooves, wherein the grooves extend diagonally from a position closer to the top frame member to a position further away from the top frame member. A method for producing an electrode plate is also disclosed.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 16, 2015
    Applicant: JOHNSON CONTROLS AUTOBATTERIE GMBH & CO. KGAA
    Inventors: Andreas Dudenbostel, Frank Johns, Peter Porscha, Detlef Bauder
  • 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
  • Patent number: 8974972
    Abstract: A battery grid includes a frame that includes a top element, a bottom element, a first side element, and a second side element. The battery grid also includes a plurality of wires provided within the frame and defining a plurality of open areas and a current collection lug extending from the top element in a first direction. The battery grid further includes at least one feature provided in the battery grid that is configured to reduce the amount of growth of the battery grid in the first direction due to corrosion of the battery grid during the life of the battery grid.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: March 10, 2015
    Assignee: Johnson Controls Technology Company
    Inventors: Glenn W. Andersen, Eric M. Taylor, Kenneth A. Adams, Edward N. Mrotek, Jeffrey P. Zagrodnik, Shu Jen F. Kao
  • Publication number: 20150064570
    Abstract: An electrochemical cell has at least one positive electrode, at least one negative electrode and at least one separator arranged between the electrodes. At least one of the electrodes includes a first, coarser mesh and a second, finer mesh. The first and the second mesh at least differ in that the first mesh consists of threads having a larger diameter than the threads of which the second mesh consists, and/or in that the first mesh has mesh openings having a larger opening width than the openings of the second mesh. However, both are woven meshes made of monofilaments. The threads of the first and/or the second mesh are coated with an electrically conducting material and serve as current collectors of the at least one electrode.
    Type: Application
    Filed: September 3, 2014
    Publication date: March 5, 2015
    Inventors: Michael Wendler, Carmine Lucignano
  • 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: 8962190
    Abstract: The current thickness limitations of battery electrodes are addressed. An electrode includes an electrically conductive porous foam layer, an energy-storage material in contact with the porous foam layer, and electrically conductive porous foam protrusions extending from the porous foam layer into the energy-storage material. The energy-storage material is not contained within the pores of the foam layer or the foam protrusions. These electrodes allow lithium ions (and other metal ions, if desired) to diffuse deeper into a thick energy-storage material layer, compared to conventional planar electrodes. In particular methods, fluidic foam precursors can be templated in a mold, followed by conversion into a solid conductive foam that includes the electrically conductive porous foam protrusions. The result is batteries with surprisingly high energy densities.
    Type: Grant
    Filed: December 10, 2011
    Date of Patent: February 24, 2015
    Assignee: HRL Laboratories, LLC
    Inventors: Adam F. Gross, John Wang, Tobias Schaedler, Hung Nguyen, Larken E. Euliss, Christopher Roper, Ping Liu
  • 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: 20150037683
    Abstract: A method of making a grid for a battery plate of a lead-acid battery. A substantially planar web is manufactured to include a plurality of spaced apart and interconnected wire segments, which at least partially define substantially planar surfaces, have a plurality of transverse lands, and interconnect at a plurality of nodes to define a plurality of open spaces between the wire segments. The web is reformed to change the cross-sectional shape of the wire segments. Other aspects may include simultaneously reducing the thickness of at least a portion of the web while reshaping the wire segments, and/or providing a controlled surface roughness on at least one of the surfaces of the web to increase surface area of the grid and thereby promote adhesion of an electrochemically active material to the grid.
    Type: Application
    Filed: October 22, 2014
    Publication date: February 5, 2015
    Inventors: JOHN W. WIRTZ, John O. Wirtz, Jack E McLane
  • Patent number: 8940441
    Abstract: An anode capable of relaxing the stress due to expansion and shrinkage and a battery using the anode are provided. In the anode, an anode active material layer containing at least one of silicon and tin as an element is provided on both faces of a strip-shaped anode current collector. In the anode current collector and the anode active material layer, at least one penetrating portion that is cut out or slit to penetrate the anode current collector and the anode active material layer is formed to extend to include a longitudinal component of the anode current collector.
    Type: Grant
    Filed: April 3, 2007
    Date of Patent: January 27, 2015
    Assignee: Sony Corporatin
    Inventors: Takakazu Hirose, Kenichi Kawase, Isamu Konishiike, Masayuki Iwama, Koichi Matsumoto
  • Publication number: 20150024270
    Abstract: An electron collector structure and a lithium battery including the same are disclosed. The electron collector structure includes a conductive thin film; and a graphene layer that is coated on the surface of the conductive thin film and may improve the electrical conductivity of an electrode plate. As an electrode of the lithium battery includes the electron collector structure, the electrical conductivity of the electrode may be increased so that the energy consumption properties as well as the lifespan characteristics of the lithium battery may be also improved.
    Type: Application
    Filed: June 10, 2014
    Publication date: January 22, 2015
    Inventors: Han-Eol Park, Seon-Young Kwon, Do-Hyung Park, Jong-Seo Choi, Ji-Hyun Kim, Min-Han Kim, Joong-Ho Moon, Kyoung-Hyun Kim
  • 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
  • Patent number: 8927127
    Abstract: A square lithium secondary battery includes a wound body in which a collective sheet in which a positive electrode sheet and a negative electrode sheet overlap each other with a first separator interposed therebetween is wound while a second separator is put inside the collective sheet. An active material mixture layer on one or both surfaces of at least one of the positive electrode sheet and the negative electrode sheet includes a region with a plurality of openings and a region with no opening. At least a bent portion of the collective sheet is covered with the region with the plurality of openings.
    Type: Grant
    Filed: November 30, 2012
    Date of Patent: January 6, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kunio Hosoya, Kunio Kimura
  • Publication number: 20140370349
    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; and a first porous supporting layer formed on the electrode active material layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surface 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: August 29, 2014
    Publication date: December 18, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Publication number: 20140356727
    Abstract: A storage battery grid includes: a frame bone that includes a substantially rectangular shape; a lug portion that is connected to a first side portion of the frame bone and projects outwardly from the frame bone; a main bone that extends from the first side portion to a second side portion which is opposed to the first side portion; and a plurality of first sub-bones that extend obliquely toward the second side portion, at least part of the plurality of first sub-bones branching from the main bone toward both sides, wherein at least part of the plurality of first sub-bones is bent.
    Type: Application
    Filed: May 8, 2014
    Publication date: December 4, 2014
    Applicant: GS Yuasa International Ltd.
    Inventors: Kiyoshi Nouzuka, Kazuma Saito, Hiroyuki Ishiguro, Kohei Fujita, Shota Iwasaki, Junichi Nishizawa
  • Patent number: 8895192
    Abstract: A grid plate for a lead acid storage battery including a frame section having a pair of quadrangular contour shape, and longitudinal and lateral grid strands forming a frame section grid. The longitudinal and lateral grid strands have thick strands of smaller thickness than the frame section, and thin strands of smaller width and thickness than the thick strands. Strands adjacent to the thick strands are thin strands, and space allows flow of active material to sides of the thick strands. Ends of the thick strands in the thickness direction are positioned further inward from end faces of the frame section in the thickness direction, and the end portions of one end side of the thin strands in the thickness direction are positioned offset to one end side of the thick strands in the thickness direction, and active material is packed into the reverse surface side of the grid plate.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: November 25, 2014
    Assignee: Shin-Kobe Electric Machinery Co., Ltd.
    Inventors: Hiroyuki Wakatabe, Katsura Mitani, Shinichi Sano, Yoshikazu Hirose, Ichiro Shimoura
  • Patent number: 8883346
    Abstract: Provided is a method of manufacturing a prismatic battery, or a series of prismatic batteries. The method comprises stacking positive electrode plates, negative electrode plates and separator layers therebetween. The positive and negative electrode plates extend beyond a periphery of the electrode stack. The positive electrode plates are fused to form a positive current collector, and the negative electrode plates are fused to form a negative current collector.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 11, 2014
    Assignee: Encell Technology
    Inventor: Randy Gene Ogg
  • Patent number: 8883353
    Abstract: The invention relates to a rolled electrode for a storage battery, wherein the electrode (10) is of substantially plate-like design and has a frame (12, 13, 15, 17) with a grid (16) arranged therein. A contact lug (14) for connecting the electrode to a battery pole is also provided on the frame (12, 13, 15, 17). Electrodes of this type are used, for example, in lead-acid storage batteries for vehicles, for example as a starter battery. The intention is to specify an electrode with improved electrical and mechanical properties and also possible ways of producing said electrode. To this end, the frame (12, 13, 15, 17) and/or the contact lug (14) in the electrode according to the invention have/has a greater thickness than the grid (16) arranged therein, at least in specific regions. A machine for producing such an electrode and a production method are also specified.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: November 11, 2014
    Assignee: Johnson Controls Autobatterie GmbH & Co. KGaA
    Inventor: Peter Streuer
  • Patent number: 8883345
    Abstract: Provided is a prismatic battery comprising stacked positive electrode plates, negative electrode plates and separator layers therebetween. The positive and negative electrode plates extend beyond a periphery of the electrode stack. The positive electrode plates are fused to form a positive current collector, and the negative electrode plates are fused to form a negative current collector. Both the positive and negative electrode plates comprise a metal foam and are compressed between about 42 and 45% of the original thickness.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: November 11, 2014
    Assignee: Encell Technology LLC
    Inventor: Randy Ogg
  • Patent number: 8835056
    Abstract: A method of forming an electrode of a lithium ion secondary battery includes combining a binder and active particles to form a mixture, coating a surface with the mixture to form a coated article, translating the article along a first plane, cutting a first plurality of carbon fibers, each having a first average length, to form a second plurality of carbon fibers, each having a longitudinal axis and a second average length that is shorter than the first average length, inserting the second plurality of fibers into the mixture layer so that the longitudinal axis of each of at least a portion of the second plurality of fibers is not parallel to the first plane to form a preform, wherein the second plurality of fibers forms a truss structure disposed in three dimensions within the mixture layer, and heating the preform to form the electrode. An electrode is also disclosed.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: September 16, 2014
    Assignee: GM Global Technology Operations LLC
    Inventors: Xinran Xiao, Adam T. Timmons, Stephen J. Harris
  • 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
  • Patent number: 8815442
    Abstract: The invention relates to an electrode comprising (a) an electron collector containing one or more transition metals from the groups 4 to 12 of the Periodic Classification of the Elements, and (b) a material that is electrochemically active, present on the surface of the electron collector in the form of a nano-structured conversion layer containing nano-particles or agglomerates of said nano-particles, wherein the nano-particles have a mean diameter of between 1 and 1000 nm, preferably between 10 and 300 nm, wherein said electrochemically active material contains at least one compound of the transition metal or transition metals present in the electron collector, characterized by the fact that the electrode is a textile formed by metallic wires or fibers. The invention also relates to a half-accumulator and an accumulator containing such a textile electrode.
    Type: Grant
    Filed: May 18, 2007
    Date of Patent: August 26, 2014
    Assignee: Electricite de France
    Inventors: Elodie Vidal, Stephane Lascaud
  • Publication number: 20140212764
    Abstract: [Object] To regularize a potential distribution at a grid, prevent local corrosion, and lengthen product lifetime. [Solution Means] A storage battery grid includes: a frame bone 2 that includes a substantially rectangular shape; a lug portion 21 that is formed upward from an upper side 2a of the frame bone 2; one or more main vertical bone 3X that extend downward from the lug portion 21 in the frame bone 2; plural slanted bones 4 that extend obliquely from the upper side 2a toward a lower side 2b, at least the slanted bones branching from the main vertical bone 3X, which is a center, toward both sides. The slanted bones 4 are arranged at intervals in a direction in which the main vertical bone 3X extends, and at least part of plural spaces, which are defined by the main vertical bone 3X partially forming a side of the spaces, include a substantially quadrilateral shape.
    Type: Application
    Filed: July 23, 2013
    Publication date: July 31, 2014
    Applicant: GS Yuasa International Ltd.
    Inventors: Kohei Fujita, Kiyoshi Nouzuka, Shota Iwasaki, Junichi Nishizawa, Kazuma Saito, Hiroyuki Ishiguro
  • Patent number: 8785040
    Abstract: A positive electrode for a rechargeable lithium battery including a net-type current collector and a positive active material layer formed on both sides of the current collector and also including a positive active material and a binder and having a thickness of about 150 ?m or more, a method of manufacturing the same, and a rechargeable lithium battery including the same.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: July 22, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Nam-Soon Choi, Sae-Weon Roh, Yong-Chul Park, Sung-Soo Kim, So-Hyun Hur
  • Patent number: 8756798
    Abstract: The invention relates to a device for fitting and equipping motor vehicle battery housings as a compact system, which comprises individual production stations and associated transport devices, wherein the battery plate packs to be processed are arranged in clamping cassettes and are provided to the device in the necessary pack width for the intended battery cells by a feeding station arranged upstream.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: June 24, 2014
    Assignees: Sasit Industrietechnik GmbH, VB Autobatterie GmbH & Co. KGAA
    Inventors: Jochen Meier, Thomas Dörffel, Roger Loer
  • Patent number: 8741487
    Abstract: A current collector comprising a frame conductor formed as a closed undulating perimeter, and a conductive mesh formed within the frame conductor is described. The conductive mesh is comprised of a plurality of radial struts, each radial strut having a central end and an outer end. The radial struts emanate from a junction within the undulating perimeter with their outer ends connected to the undulating perimeter of the frame. The conductive mesh may include branch struts having proximal ends and distal ends, with the proximal ends connected to the radial struts. The distal ends of the branch struts may be connected to the undulating perimeter, or to adjacent radial struts. The current collector is used in an electrochemical cell, wherein a first electrode active material is contacted to at least one of first and second major sides of the current collector to provide a first electrode.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: June 3, 2014
    Assignee: Greatbatch Ltd.
    Inventors: John C. Duggan, Michael R. Blendowski, Donald F. Kaiser, Ashish Shah
  • Publication number: 20140127587
    Abstract: A battery plate assembly for a lead-acid battery is disclosed. The assembly includes a plates of opposing polarity each formed by an electrically conductive grid body having opposed top and bottom frame elements and opposed first and second side frame elements, the top frame element having a lug and an opposing enlarged conductive section extending toward the bottom frame element; a plurality of interconnecting electrically conductive grid elements defining a grid pattern defining a plurality of open areas, the grid elements including a plurality of radially extending vertical grid wire elements connected to the top frame element, and a plurality of horizontally extending grid wire elements, the grid body having an active material provided thereon. A highly absorbent separator is wrapped around at least a portion of the plate of a first polarity and extends to opposing plate faces. An electrolye is provided, wherein substantially all of the electrolyte is absorbed by the separator or active material.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 8, 2014
    Applicant: JOHNSON CONTROLS TECHNOLOGY COMPANY
    Inventors: ROBERT J. MACK, JEFFREY L. TROXEL
  • Patent number: 8709664
    Abstract: A grid network for a battery plate is provided. The grid network includes a plurality of spaced apart grid wire elements, each grid wire element having opposed ends joined to one of a plurality of nodes. Each node includes the juncture of one of the opposed ends of a plurality of the grid wire elements to define a plurality of open spaces in the grid network. At least one of the grid wire elements has a first transverse cross-section intermediate its opposed ends that is a different shape than a second transverse cross-section at at least one of the grid wire element's opposed ends.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: April 29, 2014
    Assignee: Johnson Controls Technology Company
    Inventors: Charles J. Schaeffer, Jeffrey L. Troxel, M. Eric Taylor, Wen-Hong Kao, Christian P. Hansen, Yu-Lin Chen, Dan J. Cantillon, Bart Sauer
  • Patent number: 8709663
    Abstract: A low cost, high specific energy and long cycle life lead acid battery includes polymer/metal current collectors. For intermediate electrodes, a current collector includes two polymer grids and a metal foil that is disposed between two grids, and for terminal electrodes, a current collector includes a polymer grid, a polymer sheet and a metal foil that is disposed between the polymer grid and sheet. The surfaces of the grids and metal foil are coated by different conductive and corrosion-resistant composites. The current collectors can be configured as monopolar or bipolar electrodes.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: April 29, 2014
    Inventor: Xiaogang Wang
  • Patent number: 8703342
    Abstract: An electrode assembly, a rechargeable battery including the same, and a method of manufacturing an electrode thereof, the electrode assembly including a first electrode, the first electrode including a mesh-type first electrode current collector having a plurality of pores, and a first electrode active material layer adhered to the first electrode current collector, wherein an edge active material layer protrudes from a side of the first current collector; a second electrode including a second electrode current collector, and a second electrode active material layer adhered to the second electrode current collector; and a separator interposed between the first and second electrodes.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: April 22, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sae-Weon Roh, Sung-Soo Kim, Man-Seok Han, Tae-Keun Kim, Jun-Sik Kim