Plural Concentric Or Single Coiled Electrode Patents (Class 429/94)
  • Patent number: 9318770
    Abstract: It is a task of the invention to provide a battery that allows a gas produced inside a flat wound electrode body to be easily discharged to the outside of the electrode body, and restrains an electrolytic solution (a retained electrolytic solution) extruded from the flat wound electrode body through charge/discharge from directly flowing out to the outside of the flat wound electrode body, and a method of manufacturing this battery. The battery is equipped with a flat wound electrode body, a collector member, and a retained electrolytic solution. The flat wound electrode body has an active material layer wound portion that is obtained by winding an electrode plate, has a flat oval cross-section, and has a wound active material layer forming portion, and an exposed wound portion that has a wound foil exposed portion.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: April 19, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kiwamu Kobayashi, Hideki Sano, Naoki Wakamatsu
  • Patent number: 9306206
    Abstract: An alkaline cell comprising a housing having a bottom end and a top end, and an electrode assembly disposed within the housing. The electrode assembly comprises a single first electrode and a single second electrode, a separator therebetween, and an electrolyte. The first electrode comprises a hollow outer body and at least one inner body positioned inside the outer body, the outer body and the at least one inner body being joined together inside the housing to form a single substantially homogeneous structure having an essentially uniform electrode properties. The second electrode comprises an intermediate body at least partially disposed between the outer body and the at least one inner body and electrically isolated from the outer body and the at least one inner body.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: April 5, 2016
    Assignee: The Gillette Company
    Inventors: Stuart Michael Davis, Javit Ahmed Drake, Christopher P. Haines
  • Patent number: 9299989
    Abstract: The present disclosure provides a cable-type secondary battery, comprising: an inner electrode; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and a sheet-form outer electrode spirally wound to surround the separation layer or the inner electrode.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: March 29, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Patent number: 9287590
    Abstract: A non-aqueous electrolyte secondary battery (100) includes: an electrode body (150) including a positive electrode plate (155), a negative electrode plate (156), and a separator (157); and a non-aqueous electrolyte contained inside the electrode body (150). The non-aqueous electrolyte secondary battery (100) further includes a reservoir member (170) defining a reservoir space (S1, S2) located adjacent to an end face (150j, 150k) of the electrode body (150), the reservoir space being used to hold the non-aqueous electrolyte forced out of the electrode body (150) through the end face (150j, 150k) of the electrode body (150).
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: March 15, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Nakano, Hideaki Fujita
  • Patent number: 9281133
    Abstract: An electrode for an electrochemical device includes a current collector and an electrode layer. The current collector has a main face and a side face. The side face has a concave-convex shape whose convex part is constituted by a projection extending along the main face. The projection is formed along a periphery of the electrode layer, forming a support portion. The electrode layer contains active material and is formed on and in contact with the main face including a surface formed by the support portion. The electrode is capable of mitigating the concentration of current at the edges of the electrode layer.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: March 8, 2016
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takatoshi Nagase, Naoto Hagiwara
  • Patent number: 9276266
    Abstract: An energy storage includes a cell that defines a flow chamber for receiving electrolyte, and an electrode arrangement positioned in the cell. The electrode arrangement includes a plate having first and second sides. The plate further has multiple openings that vary in size to facilitate electrolyte flow on both sides of the plate.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: March 1, 2016
    Assignee: VIZN ENERGY SYSTEMS, INCORPORATED
    Inventors: Derek C. Tarrant, Paul A. Trudeau, Jr.
  • Patent number: 9263761
    Abstract: An electrode assembly includes a positive electrode including a positive active material layer on each of first and second surfaces of a positive electrode current collector, a negative electrode including a negative active material layer on each of first and second surfaces of a negative electrode current collector, and an inner separator between the positive electrode and the negative electrode, wherein each of the positive electrode and the negative electrode includes a side end uncoated region at respective side ends of the positive electrode and the negative electrode, the side end uncoated regions of each of the positive and negative electrodes including no active material layers on respective electrode current collectors, and wherein at least one of the positive electrode and the negative electrode has an inner uncoated region positioned at a center of the electrode assembly, the inner uncoated region including no active material layer thereon.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: February 16, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Yoon-Tai Kwak, Jeong-Won Oh
  • Patent number: 9263723
    Abstract: A secondary battery includes a wound electrode assembly having a first electrode plate having a non-coating portion, a second electrode plate having a non-coating portion, and a separator between the first electrode plate and the second electrode plate; a collecting plate having a track accommodating and electrically coupled to the non-coating portion of one of the electrode plates; a case housing the electrode assembly and the collecting plate, the case comprising an upper opening; and a cap assembly sealing the upper opening of the case.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: February 16, 2016
    Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventor: Minhyung Guen
  • Patent number: 9257717
    Abstract: In a wound electrode group, a positive electrode includes positive electrode active material layers formed on both surfaces of a band-like positive electrode current collector, and a negative electrode includes negative electrode active material layers on both surfaces of a band-like negative electrode current collector. Charge capacity of the negative electrode falls within a range of 83-99% of theoretical capacity of the negative electrode in a full charge state of a nonaqueous electrolyte secondary battery. An active material mass M1 per unit area of a negative electrode active material layer formed on an outer circumference of the negative electrode current collector, and an active material mass M2 per unit area of a negative electrode active material layer formed on an inner circumference satisfy a relational expression of M1/M2<(R1+t/2)/(R1?t/2), where the electrode group has an innermost diameter of R1, and the negative electrode has a thickness of t.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: February 9, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshiyuki Muraoka, Masaya Ugaji, Takahiro Aoyama, Haruya Nakai
  • Patent number: 9227064
    Abstract: An external processor device is described for a hearing implant system. An external processor housing has a generally planar skin contacting surface and a central axis perpendicular to the skin contacting surface. A signal processor is located within the processor housing for developing an implant data signal. The processor housing also contains a transmitter coil for coupling the implant data signal across the skin to the implantable prosthetic system. A battery container forms an annular compartment around the central axis and contains a battery arrangement to provide electrical power to the signal processor and the transmitter coil.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: January 5, 2016
    Assignee: MED-EL Elektromedizinische Geraete GmbH
    Inventors: Alexander Duftner, Erwin S. Hochmair
  • Patent number: 9214698
    Abstract: A secondary battery including a fixing part on the inside of the can is disclosed. In one embodiment, the battery includes an electrode assembly having a diameter of L2, a can housing the electrode assembly and at least one fixing portion extending from an inner wall of the can toward an outer surface of the electrode assembly. In one embodiment, L1 is defined as the shortest distance between two portions of the inner wall of the can which are substantially directly opposing with respect to each other. The electrode assembly is separated from the fixing part by a gap such that the electrode assembly is prevented from contacting the can.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: December 15, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Dae-Kyu Kim
  • Patent number: 9214664
    Abstract: An object of the present invention is a cathode active material including a lithium manganese-based oxide. The lithium manganese-based oxide has a spinel structure, exhibits core-shell phase transition by which phase transition of a crystal structure occurs from a cubic structure to a tetragonal structure in a direction from the surface of particles to the center of the particles during discharging to the 3V region, and includes a conductive material at the shell to improve electrical conductivity of the tetragonal structure.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 15, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Song Taek Oh, Sang Uck Lee, Geun Chang Chung, Sin Kyu Kim
  • Patent number: 9214672
    Abstract: The present invention provides an electrode for a secondary battery, more specifically an electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on at least one surface or the whole outer surface of the current collector; a graphite-based coating layer formed on the top surface of the electrode active material layer and comprising graphite, a conductive material and a first polymer binder; and a porous coating layer formed on the top surface of the graphite-based coating layer and comprising a second polymer binder. Also, the present invention provides a secondary battery and a cable-type secondary battery comprising the electrode.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: December 15, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Jang-Hyuk Hong, Hye-Ran Jung, Je-Young Kim, Jong-Hun Kim
  • Patent number: 9209481
    Abstract: A rechargeable lithium battery including an electrode assembly having a positive electrode including a positive current collector partially coated with a positive active material to form a positive coated region and a positive uncoated region, a negative electrode including a negative current collector partially coated with a negative active material to form a negative coated region and a negative uncoated region and a separator between the positive electrode and the negative electrode. The electrode assembly is spirally wound a plurality of times with the positive uncoated region and the negative uncoated region together forming a core central to the spirally-wound electrode assembly and wound from 3 to 15 times.
    Type: Grant
    Filed: May 5, 2011
    Date of Patent: December 8, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jea-Woan Lee
  • Patent number: 9209432
    Abstract: A secondary battery has: an electrode group which includes sheet-form positive and negative electrode plates each including a metallic foil having an active material applied onto both sides of the metallic foil, and a separator disposed between the positive and negative electrode plates, wherein the positive and negative electrode plates and the separator are spirally wound together around a winding core into a flattened shape, wherein the electrode group has, at the both ends thereof as viewed in the winding core direction, respectively formed metallic foil exposed portions of the positive and negative electrode plates onto which the active material is not applied; a battery container which contains the electrode group therein, wherein the battery container has a battery casing and a battery cap; and positive and negative external terminals electrically connected to the metallic foil exposed portions of the positive and negative electrode plates, respectively.
    Type: Grant
    Filed: February 23, 2011
    Date of Patent: December 8, 2015
    Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.
    Inventors: Sho Saimaru, Ryuji Kohno
  • Patent number: 9209430
    Abstract: A cylindrical battery including: a battery case having a cylindrical shape; an electrode group disposed in the battery case, including a positive electrode, a negative electrode, and a separator, and having a pair of flat outer side surfaces opposed to each other; and a spacer disposed between an inner peripheral surface of the battery case and each of the flat outer side surfaces of the electrode group. The spacer has a case contact portion that extends continuously from a first axial end to a second axial end and is in contact with the inner peripheral surface of the battery case, and the case contact portion is formed with a communicating portion that communicates spaces partitioned by the case contact portion.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: December 8, 2015
    Assignee: GS Yuasa International Ltd.
    Inventors: Manabu Kanemoto, Mitsuhiro Kodama, Tadashi Kakeya
  • Patent number: 9196897
    Abstract: An electrode having excellent charge/discharge cycle characteristics and which is capable of improving a secondary battery capacity. An electrode is formed on the surface of a collector as an assembly of multiple porous domain structures that are apart from each other, the porous domain structures each having a polygonal shape without an acute angle in a planar view, the polygonal shape having a maximum diameter of 120 ?m or less.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: November 24, 2015
    Assignees: TOKYO OHKA KOGYO CO., LTD., TOKYO METROPOLITAN UNIVERSITY
    Inventors: Takahiro Asai, Takashi Ono, Kiyoshi Kanamura, Hirokazu Munakata
  • Patent number: 9196886
    Abstract: A secondary battery includes an electrode assembly, an insulation bag, a case, and a cap plate. The electrode assembly includes first and second electrodes, and a separator between the electrodes. The insulation bag has an open top and houses the electrode assembly. The case houses the electrode assembly and the insulation bag. The cap plate seals the case. The insulation bag includes first and second side surface portions, and first and second extending portions. The first and second side surface portions face one another and extend from one side to an opposite side. The first extending portion extends from an upper end of the first side surface portion at the one side. The second extending portion extends from an upper end of the second side surface portion at the opposite side.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: November 24, 2015
    Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventors: Jongseok Moon, Byungkyu Ahn
  • Patent number: 9190218
    Abstract: The present invention relates to a dye-sensitized solar cell including a working electrode (1), a first conducting layer (3) for extracting photo-generated electrons from the working electrode, a porous insulation substrate (4) made of a microfibers, wherein the first conducting layer is a porous conducting layer formed on one side of the porous insulation substrate, a counter electrode including a second conducting layer (2) arranged on the opposite side of the porous substrate, and electrolyte for transferring electrons from the counter electrode to the working electrode. The porous insulation substrate comprises a layer (5) of woven microfibers and a layer (6) of non-woven microfibers disposed on the layer of woven microfibers. The present invention also relates to a method for producing a dye-sensitized solar cell.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: November 17, 2015
    Assignee: Exeger Sweden AB
    Inventors: Henrik Lindström, Giovanni Fili
  • Patent number: 9178194
    Abstract: A battery pack to improve assembling reliability in a battery with a cover frame. The battery pack according to the present invention includes a rechargeable battery having at least one rounded lateral side; a cover frame including a frame surrounding each of lateral sides of the rechargeable battery, wherein more than at least one groove is formed at both ends of the frame covering the rounded lateral side of the rechargeable battery. Therefore, it is possible to couple the cover frame to the rechargeable battery via the groove without deforming the cover frame. Also, the rounded battery and the rounded cover frame closing each other is an effect that assembly error of a battery to cover frame can be reduced.
    Type: Grant
    Filed: July 31, 2008
    Date of Patent: November 3, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyungho Park, Seok Koh, Kyungwon Seo
  • Patent number: 9160030
    Abstract: Disclosed herein is a mandrel configured to be used in a winding process for manufacturing a jelly roll type electrode assembly using a long sheet type stack of a cathode/separator/anode structure, wherein the mandrel is oval in a section perpendicular to a rotational central axis of the mandrel, a length ratio of a major axis to a minor axis of the mandrel being 1.5 or more, and a tilt of an outer side of the mandrel is continuously changed from an end of the minor axis of the mandrel to an end of the major axis of the mandrel in the section perpendicular to the rotational central axis of the mandrel.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: October 13, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Jae Cheol Jeong, Hak Kyun Kim, Dong-Myung Kim, Sunhwan Kim, Chang Sin Yeo
  • Patent number: 9147869
    Abstract: A rechargeable battery includes an electrode assembly that undergoes charging and discharging; a case containing the electrode assembly; a terminal electrically connected to the electrode assembly and protruding from an interior of the case to an exterior of the case; a lead tab electrically connecting the terminal and the electrode assembly; and an insulating pack that insulates the electrode assembly from the case, the electrode assembly being disposed in the insulating pack and the insulating pack being disposed in the case, the insulating pack including one or more indentation portions formed at one edge and one or more grooves positioned to correspond to the indentation portion and insertion-coupled to the indentation portion.
    Type: Grant
    Filed: April 28, 2011
    Date of Patent: September 29, 2015
    Assignees: SAMSUNG SDI CO., LTD., ROBERT BOSCH GmbH
    Inventor: Jong-Seok Moon
  • Patent number: 9142821
    Abstract: Disclosed are an improved electrode assembly which may allow an electrode plate to be more easily impregnated with an electrolyte and also ensure gas to be easily discharged, and a secondary battery having the electrode assembly. The electrode assembly includes at least one cathode plate formed by coating an electrode current collector with a cathode active material, at least one anode plate formed by coating an electrode current collector with an anode active material, and a separator interposed between the cathode plate and the anode plate and having at least one vent formed therein.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: September 22, 2015
    Assignee: LG Chem, Ltd.
    Inventor: Seung-Min Yang
  • Patent number: 9142854
    Abstract: Disclosed is a battery including a cathode and an anode wound to face each other with a separator interposed therebetween. Both surfaces of a cathode collector are provided with cathode active-material coating layers so as not to provide a cathode uncoated part at a winding beginning portion of the cathode. The cathode uncoated part for installation of a cathode lead is provided only at a winding ending portion of the cathode. An insulator tape is attached to the boundary of the cathode active-material coating layer facing the anode at the winding ending portion of the cathode. Providing the insulator tape to the boundary of the cathode active-material coating layer at a position where a non-coating part not containing the cathode active-material coating layer and an anode active-material coating layer face each other achieves enhanced electrical insulation capability and consequential safety of the battery.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: September 22, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Jin Soo Lee, Kil Young Lee, Dong Myung Kim
  • Patent number: 9136544
    Abstract: Methods for fabrication of electronic systems and systems therefrom are provided. An electronic system includes a first substrate (202) having a first surface (202a) and a second substrate (208) having a second surface (208a) facing the first surface. The system also includes a plurality of battery cell layers (106-112) disposed on a plurality of laterally spaced areas on the first and second surfaces (203, 209). In the system, portions of the battery cell layers on the first surface are in physical contact with portions of the battery cell layers on the second surface and the battery cell layers on the first surface and the second surface form a plurality of electrically interconnected battery cells (206, 212) on the first and the second surfaces that are laterally spaced apart and that define one or more batteries (200).
    Type: Grant
    Filed: March 11, 2010
    Date of Patent: September 15, 2015
    Assignee: Harris Corporation
    Inventors: Lawrence W. Shacklette, Louis J. Rendek, Jr.
  • Patent number: 9136556
    Abstract: Disclosed herein is an electrode assembly of a cathode/separator/anode structure, wherein a plurality of first unit electrodes and a second electrode sheet are wound so that the first unit electrodes are opposite to the second electrode sheet via a separator sheet, and a first electrode and a second electrode have opposite polarities.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: September 15, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jihoon Cho, Dongmyung Kim, Kiwoong Kim, Sung-Min Hwang, Hyun-Chul Jung, Sungjin Kwon, Hyeong Kim, Ki Hong Min
  • Patent number: 9130223
    Abstract: A mandrel for use in a battery assembly may include a positive mandrel portion and a negative mandrel portion. Each of the mandrel portions may include a connector element coupling region and an electrode coupling region. The connector element coupling region may be configured to be coupled to a connector element and the electrode coupling region may be configured to be coupled to an electrode.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: September 8, 2015
    Assignee: Medtronic, Inc.
    Inventors: Jay T. Rassat, Michael J. Nidelkoff, Jeffrey J. Clayton, Seth M. Humphrys, Paul B. Aamodt, Steven J. May
  • Patent number: 9130237
    Abstract: Each of battery cells (12) that constitute a battery module includes a flat-shaped rolled electrode body (30) formed by rolling a sheet-like anode collector (32) and a sheet-like cathode collector (34) along with a sheet-like separator, and a trailing edge (32E) of the sheet-like anode collector (32) and a trailing edge (34E) of the sheet-like cathode collector (34) are located at a position (30B) outside a portion of the rolled electrode body (30) which substantially receives a restraining load. The battery module, in which the restraining load is applied to the cells, achieves long service life while maintaining good output characteristics.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: September 8, 2015
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Kuroda, Sachio Takeda
  • Patent number: 9123924
    Abstract: A battery core and a method of manufacturing the same are disclosed herein. The battery core includes a first electrode plate and a second electrode plate. The first electrode plate includes a substrate and a first active material. A first portion of the first active material is formed on a first area of the substrate, and a second portion of the first active material is formed on a second area of the substrate. The second electrode plate includes first and second substrates disconnected from each other, and a second active material. The first and second substrates are positioned corresponding to the first and second first areas respectively. A first portion of the second active material is formed on the first substrate, and a second portion of the second active material is formed on the second substrate.
    Type: Grant
    Filed: August 28, 2012
    Date of Patent: September 1, 2015
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Ming-Lung Chen, Chien-Ming Chen, Ching-Chou Yu, Sheng-Fu Wen
  • Patent number: 9112233
    Abstract: Disclosed is a method for manufacturing a cell which includes: a first step of manufacturing a core using a core manufacturing apparatus, the apparatus including a pair of winding shafts disposed with a rotation center of the apparatus interposed therebetween, the pair of winding shafts orbitally moving about the rotation center; and a second step of fabricating a laminated electrode member with a sheet-shaped positive electrode, a sheet-shaped negative electrode and a pair of sheet-shaped separators interposed thereto to be arranged alternately with the electrodes; and winding the laminated electrode member around a circumferential surface of the core. The first step includes: inserting a sheet having a higher strength than the separators between the winding shafts; orbitally moving the pair of winding shafts; and adhesively bonding or melt-bonding overlapped portions of the sheet at the winding shafts.
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: August 18, 2015
    Assignee: GS Yuasa International Ltd.
    Inventors: Isao Suzuki, Noriyoshi Munenaga, Taku Nakamura, Hiroshi Tasai, Shun Ito
  • Patent number: 9112220
    Abstract: A nickel hydrogen rechargeable battery has a positive electrode and a negative electrode. The positive electrode includes positive-electrode active material made of nickel hydroxide particles in which magnesium is dissolved, and the negative electrode includes rare earth-Mg—Ni-based hydrogen storage alloy powder. At least either one of the negative and positive electrodes includes as additive at least one selected from a group including zinc and zinc compounds. The content of the additive ranges from 0.2 to 1.5 part by weight per 100 parts by weight of hydrogen storage alloy in the negative electrode, and ranges from 0.3 to 1.5 part by weight per 100 parts by weight of positive-electrode active material in the positive electrode.
    Type: Grant
    Filed: July 26, 2012
    Date of Patent: August 18, 2015
    Assignee: FDK CORPORATION
    Inventors: Masaru Kihara, Masaaki Takei, Tetsuya Yamane
  • Patent number: 9099696
    Abstract: A secondary battery includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator between the first electrode plate and the second electrode plate; a first electrode terminal electrically coupled to the first electrode plate and a second electrode terminal electrically coupled to the second electrode plate; an external member wrapped around side surfaces of the electrode assembly; and a first cover and a second cover coupled to the external member and covering a first end surface and a second end surface, respectively, of the electrode assembly, wherein the first electrode terminal and the second electrode terminal protrude from at least one of the first cover or the second cover.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: August 4, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Changbum Ahn, Jakyung Cho
  • Patent number: 9099741
    Abstract: A cathode, electrochemical cell and process for making either is disclosed. The cathode includes iron disulfide which exhibits multiple peaks representing distinct maxima of mean diameters for the volume-based particle size distribution. All of the maxima are less than 20 microns. A combination of natural pyrite ore and synthetic iron disulfide may be mixed to achieve the desired distribution, or a combination of natural pyrite ores may be processed in different manners to achieve the desired characteristics.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: August 4, 2015
    Assignee: Eveready Battery Company, Inc.
    Inventors: Jack W. Marple, Michael W. Wemple, Ronald Crawford, Weiwei Huang, George L. Schimek
  • Patent number: 9070929
    Abstract: Disclosed is a secondary battery in which an electrode assembly is accommodated in a battery case, wherein the battery case is made of a laminate sheet including a resin layer and a metal layer and hermetically sealed through sealing of an outer circumferential surface thereof in a state of accommodating the electrode assembly, and at least one of sealing parts at the outer circumferential surface of the battery case is provided with at least two continuously formed recessed portions.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: June 30, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Seong Yong Kim, Hanho Lee
  • Patent number: 9070955
    Abstract: Disclosed is a sealed structure for an electrochemical device having a hollow space therein, further comprising a material generating gases via thermal decomposition in the hollow space. Also, disclosed is an electrochemical device comprising a cathode, an anode, a separator, an electrolyte, a casing for the device, and the structure for the electrochemical device.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: June 30, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Young-Sun Park, Myoung-Hun Lee, Pil-Kyu Park, Eun-Ju Kang
  • Patent number: 9070952
    Abstract: The present disclosure provides a cable-type secondary battery, comprising: an inner electrode supporter; and a sheet-form laminate of inner electrode-separation layer-outer electrode, spirally wound on the outer surface of the inner electrode supporter, wherein the laminate of inner electrode-separation layer-outer electrode is formed by carrying out compression for the integration of an inner electrode, a separation layer for preventing a short circuit, and an outer electrode. In the cable-type secondary battery of the present disclosure, since the electrodes and the separation layer are adhered to each other and integrated, the separation layer coming into contact with the electrodes absorbs an electrolyte solution to induce the uniform supply of the electrolyte solution into the outer electrode active material layer, thereby enhancing the stability and performances of the cable-type secondary battery.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: June 30, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Byung-Hun Oh, Hye-Ran Jung, Je-Young Kim
  • Patent number: 9065153
    Abstract: An electrode plate, an electrode assembly and a manufacturing method of the electrode plate to prevent an internal electrical short occurring between electrode plates by forming a ceramic layer wrapping a current collector plate and an active material layer. The electrode plate includes a current collector plate having a first face and a second face opposite to the first face, an active material layer formed on at least one of the first face and the second face of the current collector plate, and a ceramic layer wrapping the current collector plate and the active material layer.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: June 23, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Youngbae Sohn
  • Patent number: 9065143
    Abstract: A sheet-form electrode for a secondary battery, includes 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 including 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 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: Grant
    Filed: September 4, 2014
    Date of Patent: June 23, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Yo-han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Patent number: 9065139
    Abstract: Provided is a method for mass manufacturing, at low cost, of a fiber positive electrode for a lithium secondary battery, which has excellent charge/discharge cycle characteristics, and which is capable of charging/discharging with high current density, and a main active material of which is a lithium-doped transition metal oxide. The method includes the steps of: (a) forming a tubular coating of either a transition metal oxide or a transition metal hydroxide on a carbon fiber current collector; and (b) performing, in a lithium ion containing solution in a sealed system under presence of an oxidant or a reductant, heat treatment at 100 to 250° C. on the carbon fiber current collector, on which the tubular coating of either the transition metal oxide or the transition metal hydroxide is formed, to obtain a coating of a lithium-doped transition metal oxide on the carbon fiber current collector.
    Type: Grant
    Filed: February 2, 2010
    Date of Patent: June 23, 2015
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Tetsuo Sakai, Jinhan Yao, Takashi Mukai, Tomoaki Takasaki, Kazuo Tsutsumi, Kazuya Nishimura
  • Patent number: 9059469
    Abstract: The present invention relates to an electrode assembly having fiber-shaped structures, and a battery including the same. According to one embodiment of the present invention, the electrode assembly comprises: a first electrode having one or two or more first fiber-shaped structures that have either a positive or negative pole; and a second electrode having one or two or more second fiber-shaped structures that have a different polarity from the structures and enclose said first structures in a spiral manner.
    Type: Grant
    Filed: August 13, 2011
    Date of Patent: June 16, 2015
    Assignee: SHINE CO., LTD.
    Inventor: Kwon Seok Kim
  • Patent number: 9059487
    Abstract: A battery with a soaking plate for a thermally and electrically conductive channel includes a plurality of battery rolls and two cap assemblies. Each of the battery rolls includes a central member and at least one electrode piece. Each of two ends of the central member has a bending portion. The electrode piece at least includes a positive electrode layer and a negative electrode layer. The electrode piece is winding around the central member. The battery rolls are disposed in parallel, and the bending portions at the two ends are formed as terminal disposed portions. The two cap assemblies are disposed at the terminal disposed portions.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: June 16, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Sheng-Fa Yeh, Chiou-Chu Lai, Chin-Chuan Chang, Deng-Tswen Shieh, Chich-Lun Lo, Shu-Ping Lin, Chun-Jui Hung, Li-Lun Liu
  • Patent number: 9048489
    Abstract: An electrode assembly and a lithium secondary battery including the same. Heat generation of the electrode tabs is reduced by providing the electrode tabs at the outermost parts of the electrode assembly. An insulation member is attached at the boundary of the electrode tabs and the respective electrode plates. An insulation member is also attached to the uncoated portions formed on the outer circumference of the electrode assembly, thereby preventing internal short circuits either between an uncoated portion and an active material layer or between the uncoated portions. The electrode assembly can be used in pouch, rectangular and cylindrical lithium secondary batteries to prevent an internal short circuit within the batteries.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: June 2, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeongwon Oh, Joongheon Kim
  • Patent number: 9048030
    Abstract: In an area where positive and negative electrode leads 11, 21 oppose each other through a separator 30 in a wound electrochemical device 1, active material layers are removed from surfaces of current collectors 10a, 20a, so as to form open areas 10e, 20e. Even if the active material layers are formed on the surfaces of the current collectors, surfaces opposing them through the separator are provided with the leads protected by insulating tapes, whereby the areas serving as the open areas originally have no function as a capacitor. Therefore, by removing the active material layers from areas having no function as a capacitor, the wound electrochemical device 1 can be made further thinner while inhibiting the capacity as a device from lowering.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: June 2, 2015
    Assignee: TDK CORPORATION
    Inventors: Hiroaki Hasegawa, Kiyonori Hinoki
  • Patent number: 9048501
    Abstract: A sheet-form electrode for a secondary battery includes a current collector; an electrode active material layer formed on one surface of the current collector; a porous organic-inorganic layer formed on the electrode active material layer and including inorganic particles and a polymer binder; and a first porous supporting layer formed on the porous organic-inorganic layer. The sheet-form electrode for a secondary battery 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: Grant
    Filed: September 9, 2014
    Date of Patent: June 2, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, In-Chul Kim, Hyo-Mi Kim
  • Patent number: 9048502
    Abstract: A lithium secondary battery and a method for producing the lithium secondary battery. The lithium secondary battery includes a negative electrode 1 in which negative electrode mixture layers 2 and 3 that contain active material particles containing silicon and/or a silicon alloy and a binder are disposed on the surfaces of a current collector 4. A electrode body is formed by spirally winding, from inside to outside, a laminate body; and in an outer end portion of the negative electrode 1, the negative electrode mixture layers 2 and 3 have tapering portions 2a and 3a whose thicknesses decrease toward ends 2b and 3b of the negative electrode mixture layers 2 and 3; and oozing portions 2d and 3d mainly containing the binder are formed at the tips of the tapering portions 2a and 3a of the negative electrode mixture layers 2 and 3.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: June 2, 2015
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Shouichiro Sawa, Atsushi Fukui, Yasunori Watanabe, Taizou Sunano
  • Publication number: 20150147617
    Abstract: The present disclosure provides an anode for a secondary battery, comprising a wire-type current collector; a metallic anode active material layer formed on the surface of the wire-type current collector and comprising a metallic anode active material; and an inert metal layer formed on the surface of the metallic anode active material layer and having no reactivity with lithium.
    Type: Application
    Filed: November 26, 2014
    Publication date: May 28, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Yo-Han Kwon, Sang-Wook Woo, Je-Young Kim
  • Publication number: 20150145482
    Abstract: A lithium ion battery having a plurality of cells connected in series, in parallel, or both internally within a sealed case. Also provided is a lithium ion battery having externally connected cells.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Applicant: LanYang Energy Technology Co., Ltd.
    Inventors: Weir-Mirn Hurng, Chienyang Cheng, Yuwei Huang
  • Publication number: 20150147616
    Abstract: Provided herein are button cell housing components configured to be suitable for lithium ion battery cells.
    Type: Application
    Filed: November 24, 2014
    Publication date: May 28, 2015
    Applicant: CORNELL UNIVERSITY
    Inventors: Katharine Rose Chemelewski, Yong Lak Joo
  • Publication number: 20150147615
    Abstract: Provided is a structure of a pouch which may be used in a high-capacity battery having high capacity and high stiffness, wherein the pouch may include an upper housing module which includes a metallic base plate having a concave-shaped accommodation space and polymer layers formed on one surface or both surfaces of the base plate, and a lower pouch sheet which is combined with a lower surface of the upper housing module to seal the accommodation space.
    Type: Application
    Filed: March 25, 2014
    Publication date: May 28, 2015
    Applicant: LG CHEM,LTD.
    Inventors: Chang Bum AHN, Hyuk Su KIM, Dae Geun KU, Hyang Mok LEE
  • Patent number: RE45833
    Abstract: A non-aqueous electrolyte cell is provided having improved cell characteristics and which maintains a cell shape encapsulated in a laminate film even when overdischarged to a cell voltage of 0 V. The cell includes an anode, an electrolyte, and a cathode containing a compound having the formula LixFe1-yMyPO4, wherein 0.05?x?1.2 and 0?y?0.8, and wherein M is at least one element selected from the group consisting of Mn, Cr, Co, Cu, Ni, V, Mo, Ti, Zn, Al, Ga, Mg, B and Nb. Exposed portions of an anode current collector and a cathode current collector prevent internal shorting of the cell.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: January 5, 2016
    Assignee: SONY CORPORATION
    Inventors: Kimio Takahashi, Mamoru Hosoya, Masami Miyake