Having Plural Layers Of Diverse Material Patents (Class 429/141)
  • Patent number: 10777783
    Abstract: A power storage device packaging material including a base material layer; an adhesion-enhancing treatment layer on a surface of the base material layer; an adhesive layer on a surface of the adhesion-enhancing treatment layer opposite the base material layer; a metal foil layer formed on one side of the adhesive layer opposite the adhesion-enhancing treatment layer; and a sealant layer disposed on a surface of the metal foil layer opposite the adhesive layer. The base material layer is formed of a biaxially oriented film to have a breaking strength of 240 MPa or more in at least one of four directions (0° (MD), 45°, 90° (TD), 135°) and an elongation of 80% or more in at least one direction in a tensile test (test specimen shape: test specimen type 5 stipulated in JIS K7127; inter-chuck distance: 60 mm; tensile speed: 50 mm/min).
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: September 15, 2020
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Wataru Ijuin
  • Patent number: 9972447
    Abstract: Supercapacitors are important on-chip micro-power sources for microelectronics. In addition to their ultra-fast charge and discharge rate, excellent stability, long cycle life and very high power density, supercapacitors based on graphene have garnered substantial attention in recent years due to their significant improvement in energy density. Disclosed herein are designs for parallel arrays of carbon electrodes that have interdigitated current collectors. Low-cost, high throughput methods of manufacturing that use printing processes are also disclosed.
    Type: Grant
    Filed: October 17, 2015
    Date of Patent: May 15, 2018
    Inventor: Bing R. Hsieh
  • Patent number: 9023505
    Abstract: Provided is a separator including a porous substrate having a plurality of pores, and a porous coating layer provided on at least one surface of the porous substrate and formed from a mixture of plural inorganic particles and a binder polymer, in which the binder polymer is a result of a curing reaction of an acryl-based copolymer and an isocyanate-based crosslinking agent, and the acryl-based copolymer is a copolymer including (a) a first monomer unit with a tertiary amine group, (b) a second monomer unit with at least one functional group selected from an amine group other than a tertiary amine group, an amide group, a cyano group, and an imide group, (c) a third monomer unit of (meth)acrylate with a carboxyl group, (d) a fourth monomer unit of (meth)acrylate with a hydroxyl group, and (e) a fifth monomer unit of (meth)acrylate with an alkyl group having 1 to 14 carbon atoms, and an electrochemical device comprising the same.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: May 5, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Kee-Young Kim, No-Ma Kim, Sung-Soo Yoon
  • Patent number: 8932747
    Abstract: A lithium battery is provided. The lithium battery comprises a first plate, a second plate and a separator. The first plate is composed of a plurality of electrode material layers stacked on one another. At least one of the electrode material layers comprises a thermal activation material. The separator is disposed between the first plate and the second plate.
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: January 13, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Ping-Yao Wu, Wen-Bing Chu, Chang-Rung Yang, Jen-Jeh Lee, Jing-Pin Pan, Jung-Mu Hsu, Shu-Heng Wen, Hung-Chun Wu, Chung-Liang Chang
  • Patent number: 8927149
    Abstract: There is provided a negative electrode for a lithium-ion secondary battery, including a conductive substrate, a negative electrode active material layer containing a negative electrode active material capable of absorbing and desorbing lithium ions and a conductive member having a lower elastic modulus than that of the conductive substrate, wherein at least part of the negative electrode active material is connected to the conductive substrate via the conductive member. There is also provided a lithium-ion secondary battery with such a negative electrode.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: January 6, 2015
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Kenji Ohara, Hiroaki Tanizaki, Norikazu Mineo
  • Patent number: 8920959
    Abstract: According to the present invention, a lithium ion battery outer cover material that has superior resistance to electrolytes without chromate treatment, has superior deep drawing formability and high quality, and can be produced easily is provided. The lithium ion battery outer cover material (1) of a first embodiment of the present invention has a base material layer (11), first adhesive layer (12) containing an adhesive, aluminum foil layer (13), corrosion prevention treated layer (14), second adhesive layer (15) containing an adhesive or adhesive resin, and sealant layer (16) laminated in that order. The base material layer (11) is a film base material in which the difference (?2??1) of the elasticity (?1) to the yield point and the elasticity (?2) to the rupture point as measured according to JIS-K7127 is 100% or greater in at least one of the MD direction and TD direction.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: December 30, 2014
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Masayoshi Suzuta, Takuya Muraki
  • Patent number: 8835040
    Abstract: Separator for cylindrical cell of the outwardly guided type, wherein a sheet material is wound around a mandrel, and starting from the winding step until the insertion of a separator into the cell, an outward support is used that renders the binding of neighboring turns of the separator winding unnecessary, and the separator sheet has an extended portion, with the extension being at least equal to the radius of the separator cylinder, and with this extended portion being wetted with distilled or de-ionized water until the material softens and the winding and the mandrel are rotated and the bottom part is folded back and heat fused to close the separator cylinder.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: September 16, 2014
    Assignee: Hibar Systems, Ltd.
    Inventor: Djuro Slivar
  • Patent number: 8828570
    Abstract: A battery temperature sensor may include a substrate and a thin film resistive temperature device (RTD). The substrate can be layered on a battery cell element. The battery cell element can be an anode, a cathode, and a separator between the anode and cathode used in a battery cell. The thin film resistive temperature device (RTD) on the flexible substrate can change resistance with a change in temperature. A battery cell housing can enclose the thin film RTD.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: September 9, 2014
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Neel Banerjee, Andrew L. Van Brocklin, Randy Hoffman
  • Patent number: 8815430
    Abstract: A sealed battery includes a lid closing a container of a sealed battery, an upper current collecting plate, a lead connecting an upper surface to an inner surface of the lid. A welding point of the lead is outside a position corresponding to a periphery of the cap. The lead includes a cylindrical lateral wall part extending vertically, an annular frame portion extending substantially horizontally from a first end of the lateral wall part, and a plurality of supplementary leads that extends substantially horizontally from a second end part of the lateral wall part. The frame portion extends from the first end part in substantially a first direction along a radial direction of the cylindrical lateral wall part, whereas the plurality of supplementary leads extends from the second end part in substantially a second direction opposite to the first direction along the radial direction.
    Type: Grant
    Filed: September 27, 2005
    Date of Patent: August 26, 2014
    Assignee: GS Yuasa International Ltd.
    Inventors: Kazuya Okabe, Takahiro Itagaki, Satoshi Yokota, Tomonori Kishimoto, Shuichi Izuchi, Masahiko Oshitani
  • Patent number: 8802317
    Abstract: Polymer electrolyte membrane (PEM) made from perfluorosulfonic acid polymers, displaying proton conductivity at least in the presence of water, adequate for operation in a fuel cell, comprising at least one oxidation protection agent and additives. The PEM is an acid/base polymer blend which forms acidic and basic domains, the basic polymer being formed by polybenzimidazole (PBI) and the at least one oxidation protection agent being formed by manganese oxide.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: August 12, 2014
    Assignee: Daimler AG
    Inventors: Florian Finsterwalder, Thomas Soczka-Guth, Manuel Christian Schaloske
  • Patent number: 8795871
    Abstract: An electrode assembly for a battery. The electrode assembly includes a positive electrode with a positive electrode active material layer and a negative electrode with a negative electrode active material layer. The assembly further includes a separator that has a porous layer formed of a ceramic material and a binder and a polyolefin resin layer. The porous layer has a thickness of about 4 to 6 ?m and the polyolefin resin layer has a thickness of about 12 to 16 ?m.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: August 5, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Wan-Mook Lim, Kyu-Nam Han, Myung-Ro Lee
  • Patent number: 8734984
    Abstract: When a bipolar battery is manufactured, a bipolar electrode and a separator are prepared first. Then, one electrode (for example, a positive electrode) out of positive and negative electrodes is applied with such an amount of electrolyte as being exposed on a surface of the one electrode. Then, the separator is arranged on the surface of the one electrode applied with the electrolyte, thus forming a sub-assembly unit. Then, a plurality of the sub-assembly units are layered, and the electrolyte applied to the one electrode is made to permeate through the separator to the other electrode, thus forming an assembly unit.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: May 27, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Gen Takayama, Kenji Hosaka, Teruo Segawa, Hajime Satou, Hideaki Horie, Takahiro Iwasaki, Yoshio Shimoida
  • Patent number: 8663832
    Abstract: Disclosed is a cell with a power-generating element and an outer package. The power-generating element includes a unit cell layer including a first electrode, a second electrode and an electrolyte layer disposed between the first and second electrodes. In the first electrode, a first collector is provided with one of a positive electrode active material layer and a negative electrode active material layer. In the second electrode, a second collector is provided with the other one of the positive and negative electrode active material layers. The first and second collectors have thicknesses such that when a conductor from outside penetrates at least two cells and a short circuit is formed between two cells via the conductor, shorted portions of the first and second collectors are fused by the heat generated by the current before the temperature of the cells reaches a predetermined value so that the short circuit is blocked.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: March 4, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takaaki Abe, Kazuki Miyatake, Osamu Shimamura, Masakazu Kobayashi, Hideaki Horie, Kyoichi Watanabe, Yoshio Shimoida
  • Patent number: 8617739
    Abstract: The galvanic cell according to the invention comprises at least one current conductor and a casing. Said casing at least partially surrounds said galvanic cell. A contact area is assigned to said casing. The casing is at least partially materially engaged with the current conductor via the contact area. The casing comprises at least one first layer and one second layer. The materials of said first layer and said second layer of the casing are different in respect to at least one chemical material.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 31, 2013
    Assignee: Li-Tec Battery GmbH
    Inventors: Tim Schaefer, Andreas Gutsch
  • Patent number: 8431265
    Abstract: Provided is a battery which can reduce expansion caused by gas emission when stored at high temperature. A secondary battery (1) is constructed such that a flat wound electrode (20) as a power generating element is sandwiched between exterior members (30a, 30b), having adhesion layers (40a, 40b) interposed therebetween. The adhesion layers (40a, 40b) are, for example, two-sided adhesive tapes and have a structure such that adhesive layers are formed on both surfaces of a thin plate-shaped support layer. The support layer is preferably made of polypropylene or polyimide. The adhesion layers (40a, 40b) are composed of maleated polypropylene whose melting point is preferably in a range from 100° C. to 200° C., more preferably, in a range from 140° C. to 180° C.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: April 30, 2013
    Assignee: Sony Corporation
    Inventors: Takaaki Kimijima, Norio Mamada
  • Patent number: 8394527
    Abstract: The galvanic cell according to the invention comprises at least one current conductor and a casing. Said casing at least partially surrounds said galvanic cell. A contact area is assigned to said casing. The casing is at least partially materially engaged with the current conductor via the contact area. The casing comprises at least one first layer and one second layer. The materials of said first layer and said second layer of the casing are different in respect to at least one chemical material.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: March 12, 2013
    Assignee: Li-Tec Battery GmbH
    Inventors: Tim Schäfer, Andreas Gutsch
  • Patent number: 8389148
    Abstract: Separator for cylindrical cell of the outwardly guided type, wherein a sheet material is wound around a mandrel, and starting from the winding step until the insertion of a separator into the cell, an outward support is used that renders the binding of neighboring turns of the separator winding unnecessary, and the separator sheet has an extended portion, with the extension being at least equal to the radius of the separator cylinder, and with this extended portion being wetted with distilled or de-ionized water until the material softens and the winding and the mandrel are rotated and the bottom part is folded back and heat fused to close the separator cylinder.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: March 5, 2013
    Assignee: Hibar Systems Ltd.
    Inventor: Djuro Slivar
  • Publication number: 20120321929
    Abstract: The present invention is to provide a separator that is excellent in heat resistance, shutdown function, flame retardancy and handling property. The separator for a nonaqueous secondary battery of the invention is a separator for a nonaqueous secondary battery that has a polyolefin microporous membrane at least one surface of which is laminated with a heat resistant porous layer containing a heat resistant resin, and is characterized by containing an inorganic filler containing a metallic hydroxide that undergoes dehydration reaction at a temperature of 200 to 400° C.
    Type: Application
    Filed: August 28, 2012
    Publication date: December 20, 2012
    Applicant: TEIJIN LIMITED
    Inventors: Satoshi NISHIKAWA, Takashi YOSHITOMI, Guemju CHA, Takahiro DAIDO
  • Patent number: 8323828
    Abstract: A battery packet (50) comprises a battery case (51) formed by processing a battery case forming laminated sheet (10), a battery 50a contained in the battery case (51), and tabs (59, 60) extending outside from the battery case (51). The battery case forming laminated sheet (10) is formed by laminating a first base film layer (1a), i.e., an outermost layer, a metal foil layer (2), and a heat-adhesive resin layer (3) in that order. The first base film layer (1a) is a biaxially oriented polyethylene terephthalate resin film or a biaxially oriented nylon resin film. The metal foil layer (2) is an aluminum or copper foil. The heat-adhesive resin layer (3) is formed of a polyolefin resin, more preferably, of an acid-denatured polyolefin resin.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: December 4, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Takuya Yamazaki, Kiyoshi Oguchi, Koji Shimizu, Kenichiro Suto, Tsutomu Yoshinaka, Hideki Kurokawa, Hitoshi Sekino, Masahiro Yoshikawa, Hiroshi Miyama, Katsuhiko Hayashi, Jun Fukuda
  • Patent number: 8227109
    Abstract: A packing material for a lithium cell of the present invention includes a first adhesive layer, an aluminum foil layer, a coating layer, an adhesive resin layer or a second adhesive layer, and a sealant layer laminated sequentially on one surface of a base material layer, wherein the coating layer is a multilayer structure comprising a layer (A), in which 1 to 100 parts by mass of a phosphoric acid or a phosphate has been blended into 100 parts by mass of a rare earth element-based oxide, and a layer (X) which contains an anionic polymer and a cross-linking agent that causes cross-linking of the anionic polymers.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: July 24, 2012
    Assignee: Toppan Printing Co., Ltd.
    Inventor: Masayoshi Suzuta
  • Patent number: 8168318
    Abstract: Concepts and methods are provided to reduce the cost and complexity of thin film battery (TFB) high volume manufacturing by eliminating and/or minimizing the use of conventional physical (shadow) masks. Laser scribing and other alternative physical maskless patterning techniques meet certain or all of the patterning requirements. In one embodiment, a method of manufacturing thin film batteries comprises providing a substrate, depositing layers corresponding to a thin film battery structure on the substrate, the layers including, in order of deposition, a cathode, an electrolyte and an anode, wherein at least one of the deposited layers is unpatterned by a physical mask during deposition, depositing a protective coating, and scribing the layers and the protective coating. Further, the edges of the layers may be covered by an encapsulation layer. Furthermore, the layers may be deposited on two substrates and then laminated to form the thin film battery.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: May 1, 2012
    Assignees: Applied Materials, Inc., Motorola Mobility, Inc.
    Inventors: Byung Sung Kwak, Nety M. Krishna, Kurt Eisenbeiser, William J. Dauksher, Jon Candelaria
  • Patent number: 8153293
    Abstract: A new design for a cathode having a configuration of: SVO/first current collector/CFx/second current collector/SVO is described. The two cathode current collectors are vertically aligned one on top of the other in a middle region or zone of the cathode. This coincides to where a winding mandrel will be positioned to form a wound electrode assembly with an anode. The overlapping region of the two current collectors helps balance the expansion forces of the exemplary SVO and CFx active material layers. This, in turn, helps maintain a planar cathode that is more amenable to downstream processing. The use of two current collectors on opposite sides of an intermediate cathode active material also provides for enhanced reliability when cathodes are wound from the center as they lend structural integrity to outer portions of the wind.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: April 10, 2012
    Assignee: Greatbatch Ltd.
    Inventors: Robert S. Rubino, Hong Gan, Esther S. Takeuchi
  • Patent number: 8110304
    Abstract: A packing material for a lithium cell of the present invention includes a first adhesive layer, an aluminum foil layer, a coating layer, an adhesive resin layer or a second adhesive layer, and a sealant layer laminated sequentially onto one surface of a base material layer, wherein the coating layer includes a layer (A) in which 1 to 100 parts by mass of a phosphoric acid or a phosphate has been blended into 100 parts by mass of a rare earth element based oxide.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: February 7, 2012
    Assignee: Toppan Printing Co., Ltd.
    Inventor: Masayoshi Suzuta
  • Patent number: 8071235
    Abstract: A packing material for a lithium cell of the present invention includes a first adhesive layer, an aluminum foil layer, a coating layer, an adhesive resin layer or a second adhesive layer, and a sealant layer laminated sequentially on one surface of a base material layer, wherein the coating layer is a multilayer structure comprising a layer (A), in which 1 to 100 parts by mass of a phosphoric acid or a phosphate has been blended into 100 parts by mass of a rare earth element-based oxide, and a layer (X) which contains an anionic polymer and a cross-linking agent that causes cross-linking of the anionic polymers.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: December 6, 2011
    Assignee: Toppan Printing Co., Ltd.
    Inventor: Masayoshi Suzuta
  • Patent number: 7960050
    Abstract: A secondary battery includes an electrode group 5 formed by winding a positive electrode plate 1 and a negative electrode plate 2 with a separator 3 interposed therebetween. Each of the positive and negative electrode plates 1 and 2 includes a current collector 1 and mixture layers 8 and 9 each containing an active material and formed on the surface of the current collector 1. A plurality of trenches 30 are formed in the surfaces of the mixture layers 8 and 9 of at least one of the positive electrode plate 1 and the negative electrode plate 2. The trenches 30 have curvature portions at side edges 30b and bottom centers 30a thereof.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: June 14, 2011
    Assignee: Panasonic Corporation
    Inventors: Hideyuki Kumakiri, Seiichi Katou
  • Patent number: 7947390
    Abstract: A pouch type secondary battery having enhanced reliability by protecting the battery from external impacts is described. A reinforcement structure may be installed on a pouch casing and an electrode assembly housed in the pouch casing. Short-circuits inside the pouch casing may be minimized. The pouch type secondary battery has an electrode assembly with positive and negative electrode plates with a separator interposed therebetween, and positive and negative terminal portions extending from the positive and negative electrode plates. A first reinforcement member is closely adhered to one or more planes of the electrode assembly. A second reinforcement member may be adhered to the pouch casing and used with or without the first reinforcement member.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: May 24, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Bum Kim, Chang-Ho Kim, Youn-Han Chang, Won-Chull Han
  • Patent number: 7867650
    Abstract: A laminate type battery comprises a substrate, a power generating element which has at least one single cell made by a positive electrode layer, an electrolyte layer and a negative electrode layer which are sandwiched by collecting layers from both sides thereof, and an electric circuit portion having electrode terminals which connect the collecting layers to an external device and circuitries which connect the collecting layers and the electrode terminals. In the battery, the power generating element and the electric circuit portion are formed by stacking a plurality of layers on the substrate, and each of the layers is configured such that the power generating element and the electric circuit portion are formed by stacking the layers.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: January 11, 2011
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasunari Hisamitsu, Hideaki Horie, Kouichi Nemoto, Yasuhiko Ohsawa
  • Patent number: 7855009
    Abstract: A new design for a cathode having a configuration of: SVO/first current collector/CFx/second current collector/SVO is described. The two cathode current collectors are vertically aligned one on top of the other in a middle region or zone of the cathode. This coincides to where a winding mandrel will be positioned to form a wound electrode assembly with an anode. The overlapping region of the two current collectors helps balance the expansion forces of the exemplary SVO and CFx active material layers. This, in turn, helps maintain a planar cathode that is more amenable to downstream processing. The use of two current collectors on opposite sides of an intermediate cathode active material also provides for enhanced reliability when cathodes are wound from the center as they lend structural integrity to outer portions of the wind.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: December 21, 2010
    Assignee: Greatbatch Ltd.
    Inventors: Robert S Rubino, Hong Gan, Esther S Takeuchi
  • Publication number: 20100239899
    Abstract: An improved gauntlet wet cell battery provides a plurality of elongated hollow spines filled with active material in a cathode array. Bottom ends of the cathode array are closed with an electrically conductive bottom end cap that electrically and mechanically interconnects the free ends of each spine so as to close and substantially rigidly locate the free ends of said spines with respect to one another. In this manner, electrical continuity between the spines is maintained even if one of the spines fractures, cracks, or otherwise becomes mechanically disassociated from an upper portion of the same spine.
    Type: Application
    Filed: March 23, 2009
    Publication date: September 23, 2010
    Inventor: Joe Brown
  • Patent number: 7799467
    Abstract: A solid polymer electrolyte produced using a layer-by layer (LBL) assembly process. The solid electrolyte is assembled on a substrate by alternating exposure to dilute solutions of polycation and polyanion or hydrogen-bonding donor and hydrogen-bonding acceptor. Ethylene oxide content is introduced into the LBL film by 1) covalent grafting onto a polyionic species, 2) inclusion of an ethylene oxide (e.g. PEO) polymer as one of the two component species of a LBL assembly, or 3) the addition of ethylene oxide-containing small molecule, oligomer, or polymer to a fully assembled LBL polymer matrix. The prepared films were to be ultrathin SPE films with sound mechanical properties and ion conductivity to meet the needs of current applications, such as batteries, fuels cells, sensors and electrochromic devices.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: September 21, 2010
    Assignee: Massachusetts Institute of Technology
    Inventors: Dean M. DeLongchamp, Paula T. Hammond, Hiroaki Tokuhisa
  • Patent number: 7670716
    Abstract: An electrochemical cell is provided comprising a first electrode and a second electrode. A separator, which includes an expansion joint, surrounds and seals the first electrode. The separator may comprise a first major surface and a second major surface substantially opposite the first major surface, and the expansion joint may be coupled between the first major surface and the second major surface.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: March 2, 2010
    Assignee: Medtronic, Inc.
    Inventors: Paul B. Aamodt, Joseph J. Viavattine
  • Patent number: 7604895
    Abstract: Provided is an electrochemical device comprising two types of separators having different energy to break, wherein the outermost electrode layer of the electrode assembly includes an active material non-coated cathode, an active material non-coated anode, and a separator (second separator) disposed between the cathode and anode and having relatively low energy to break compared to that of separators (first separator) in other electrode layers. Therefore, it is possible to remarkably improve safety of the battery by inducing primary short-circuiting in the outermost electrode layer of a battery, thus facilitating heat dissipation of the battery, upon application of external impact.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: October 20, 2009
    Assignee: LG Chem, Ltd.
    Inventors: Je Young Kim, Pil Kyu Park, Soonho Ahn, Sang-Young Lee, SeokKoo Kim, Young Tae Lee
  • Patent number: 7364816
    Abstract: A laminate type battery comprises a substrate, a power generating element which has at least one single cell made by a positive electrode layer, an electrolyte layer and a negative electrode layer which are sandwiched by collecting layers from both sides thereof, and an electric circuit portion having electrode terminals which connect the collecting layers to an external device and circuitries which connect the collecting layers and the electrode terminals. In the battery, the power generating element and the electric circuit portion are formed by stacking a plurality of layers on the substrate, and each of the layers is configured such that the power generating element and the electric circuit portion are formed by stacking the layers.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: April 29, 2008
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasunari Hisamitsu, Hideaki Horie, Kouichi Nemoto, Yasuhiko Ohsawa
  • Patent number: 7288338
    Abstract: A binderless glass fiber mat suitable for use as a separator for valve regulated (“recombinant”) lead acid (“VRLA”) batteries is disclosed. The separator is produced by a dry process by collecting the fibers from fiberizing apparatus, without subjecting them to a wet paper making or other post forming process, and selecting portions of the collected fibers which are sufficiently uniform in thickness and grammage for use as battery separators. The fibers can be entwined to produce a superior separator material. Additives can be introduced during the collection process to enhance the properties of the separator. A battery comprises at least one stack of alternating positive and negative plates, with the separator between adjacent plates. Separators according to the invention are significantly more resilient and have longer fibers than otherwise identical separators made from different samples of the same glass fibers, but by a conventional wet paper making process.
    Type: Grant
    Filed: November 23, 2004
    Date of Patent: October 30, 2007
    Assignee: KVG Technologies, Inc.
    Inventor: George Zguris
  • Patent number: 6821672
    Abstract: A binderless glass fiber mat suitable for use as a separator for valve regulated (“recombinant”) lead acid (“VRLA”) batteries is disclosed. The separator is produced by a dry process by collecting the fibers from fiberizing apparatus, without subjecting them to a wet paper making or other post forming process, and selecting portions of the collected fibers which are sufficiently uniform in thickness and grammage for use as battery separators. The fibers can be entwined to produce a superior separator material. Additives can be introduced during the collection process to enhance the properties of the separator. A battery comprises at least one stack of alternating positive and negative plates, with the separator between adjacent plates. Separators according to the invention are significantly more resilient and have longer fibers than otherwise identical separators made from different samples of the same glass fibers, but by a conventional wet paper making process.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: November 23, 2004
    Assignee: KVG Technologies, Inc.
    Inventor: George C. Zguris
  • Patent number: 6783889
    Abstract: The present invention provides a polyester film, which is composed of a polyester resin and a polyimide resin, having superior oligomer-restraining property and dimensional stability. This polyester film also has improved surface conditions, that is, has a reduced number of projections on the surface, and hence, the polyester film shows superior electromagnetic conversion characteristics when used for magnetic recording media. In particular, this polyester film is effectively used for high-density magnetic recording media. This film is composed of a polyester resin and a thermoplastic resin other than a polyester resin, and has a number H1 of coarse projections 0.28 &mgr;m or more in height of 0 to 100/100 cm2 on at least one surface of the polyester film and a number H2 of coarse projections 0.56 &mgr;m or more in height of 0 to 10/100 cm2 on the same surface.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: August 31, 2004
    Assignee: Toray Industries, Inc.
    Inventors: Akira Kubota, Kenichi Eto, Yukari Nakamori, Tetsuya Tsunekawa
  • Patent number: 6617076
    Abstract: The present invention provides a nonaqueous secondary battery and a separator to be used therein. The separator comprises a polyolefin membrane containing one or more conjugated polyene compounds provided on the surface thereof. The nonaqueous secondary battery having this arrangement performs improved cycle life characteristics and shelf characteristics at high temperatures.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: September 9, 2003
    Assignees: Japan Storage Battery Co., Ltd., GS-Melcotec Co., Ltd.
    Inventors: Yukihiro Wataru, Takashi Aoki
  • Patent number: 6338913
    Abstract: A fibrous microcell structure comprising at least one electrically conductive fibrous element circumscribed by a porous membrane separator having coated, impregnated or extruded at an inner surface thereof a first electrocatalyst layer having an electrically conductive hydrogen- or oxygen-permselective membrane thereon, with an electrolyte disposed in porosity of the porous membrane separator. The structure includes a central lumen, at least one electrically conductive fibrous element and interstitial volume accommodating flow of feed through the lumen, at least one electrically conductive fibrous element in contact with the second electrocatalyst layer, and the porous membrane separator at its outer surface being in contact with an electrocatalyst and at least one electrically conductive fiber.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: January 15, 2002
    Assignee: Microcell Corporation
    Inventor: Ray R. Eshraghi
  • Patent number: 6306539
    Abstract: Methods and materials for producing microfibers, and methods or collecting the formed fibers as mats, either by themselves or with various additive, are disclosed. The mats are masses of intermeshed glass or other fibers produced by suspending the fibers in a gaseous medium, and collecting the suspended fibers on a foraminous material. The fibers suspended in the gaseous medium have a BET surface area of from 0.2 to 5 m2 per gram. A method for adding additional materials to the mats is also disclosed; this method involves suspending the additives in the gaseous medium with the fibers.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: October 23, 2001
    Assignee: KVG Technologies, Inc.
    Inventor: George C. Zguris
  • Patent number: 6277515
    Abstract: A solid electrolyte battery is provided which is able to satisfactorily perform discharge of a large electric current in a short time and large electric current pulse even in a low temperature environment. A solid electrolyte battery incorporates: a battery structure portion constituted by forming a positive-electrode active-material layer in a portion of the surface of a positive-electrode collector and a negative-electrode active-material layer in a portion of the surface of a negative-electrode collector to be opposite to each other through a polymer electrolyte.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: August 21, 2001
    Assignee: Sony Corporation
    Inventor: Sachio Akahira
  • Patent number: 6099987
    Abstract: A cylindrical electrochemical cell includes a cathode, an anode, a cylindrical separator, coaxial with the cell, for electrically separating the cathode and anode, and a cup seal at an end of the separator for electrically separating the anode and cathode and maintaining an ionic connection therebetween. The cup seal is comprised of one or more first layers of a micro-porous or a non-porous membrane, or a combination thereof, and one or more second layers of a porous membrane and wherein the seal overlaps at least a portion of the separator.
    Type: Grant
    Filed: July 24, 1998
    Date of Patent: August 8, 2000
    Assignee: Battery Technologies Inc.
    Inventors: Josef Daniel-Ivad, Elfriede Daniel-Ivad, R. James Book
  • Patent number: 6004691
    Abstract: The subject invention relates to a battery cell structure fabricated from a single fiber containing an electrode or active material of an electrode, a membrane separator, the electrolyte, the active material of a second electrode or a second electrode. Further, the subject invention relates to a cell design fabricated from two single fibers in contact with each other, one containing an electrode, a membrane separator, electrolyte, and the other, a second electrode. The two electrodes here, represent the positive and negative electrodes of a cell. The invention further relates to the process of inserting one fibrous electrode inside a fibrous membrane separator or insulator and to the process of forming one fibrous cell which contains an electrode, porous insulator, the electrolyte, the active material of a second electrode or a second electrode.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: December 21, 1999
    Inventor: Ray R. Eshraghi
  • Patent number: 5789102
    Abstract: A separator system for an alkaline cell comprises an absorbent layer and a barrier layer adjacent to the absorbent layer. The arrangement of the separator material in the cell improves separation between anode and cathode, increases the volume available in the cell for active material or void volume, thereby improving cell performance or enhancing reliability of cells containing the system.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: August 4, 1998
    Assignee: Rayovac Corporation
    Inventors: Robert J. Jacus, Douglas Pagoria, Kenneth Kusel
  • Patent number: 5478677
    Abstract: A battery separator for tubular positive electrodes composed of a microporous, composite sheet product having first and second major surface, formed from a uniform mixture of a polymer, a filler, a processing aid a porous form stable layer at least partially embedded in either the first or second major surface and having a series of vertical tubes arranged across its surface. The tubular sleeve/separator can be formed of individual tubes, flat sheets formed into a series of tubes or sheets containing half tubes and which are aligned and bonded together to form the series of tubes.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: December 26, 1995
    Assignee: Daramic, Inc.
    Inventors: Wai M. Choi, Ingo W. Schmidt
  • Patent number: 5376477
    Abstract: A battery-plate separator system includes three layers in face-to-face relationship, the first and third layers including a porous mat of randomly oriented fibers, and, between the first and third layers, a second layer comprising a porous organic polymeric sheet with tortuosity and pores sufficiently small to substantially block penetration by metallic particles. A storage battery includes a plurality of positive lead peroxide elec-trodes, a plurality of negative metallic lead electrodes, and the same three-layer separator system in a closed case with a body of electrolyte to which the system is inert, that is absorbed by the separator system, and that is maintained in contact with the electrodes.
    Type: Grant
    Filed: April 22, 1994
    Date of Patent: December 27, 1994
    Assignee: Teledyne Industries, Inc.
    Inventors: Eugene I. Aidman, Galina Aidman, Joseph A. Orsino, John E. James
  • Patent number: 5272020
    Abstract: Cylindrical alkaline manganese dioxide-zinc cell with improved bottom sealing, where the cell comprises a coaxial assembly of a metal can closed at the bottom, a cylindrical cathode inserted in the can up to abutment at the bottom with an insulating member, a separator system in direct contact with internal surface of the cathode, a zinc anode arranged in the hollow interior of the separator system and insulated from the can, an alkaline electrolyte. The separator system extends up to the bottom end of the cathode, and a thermoplastic sealant is provided at the bottom edge zone of the separator system extending into said zone as a bead. The sealant impregnates the separator system at said edge zone.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: December 21, 1993
    Assignee: Battery Technologies Inc.
    Inventor: Robert Flack
  • Patent number: 5134045
    Abstract: A multitubular bag for electrodes of electric batteries, made of a one-piece double fabric (1a) establishing a plurality of parallel pipes (3) in its inside, the double fabric (1a) of bag (1) showing transversal high tenacity and high tensile strength multifilament yarns (4) laid in a direction transversal to the main development direction of pipes (2), and longitudinal high porosity yarns (5) obtained starting from synthetic fiber staple laid in longitudinal direction, that is laid in a direction parallel to the main developement direction of pipes (2).
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: July 28, 1992
    Assignee: Mecondor S.p.A.
    Inventor: Giuseppe Lanari
  • Patent number: 4906536
    Abstract: A tubelet panel of fabric face sheets and parallel, continuous film, partition strips normal to the face sheets and having their longitudinal edges fused into the fabric of the face sheets is formed by thermal fusion by applying heat and pressure to the outer surfaces of the face sheets in the regions in registry with the partition edges. The partition material is chosen to have a lower melting temperature than the face sheet material and the applied heat is at a temperature above the melting temperature of the partition material and below the melting temperature of the face sheet material.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: March 6, 1990
    Assignee: Fremont Special Machine Company, Inc.
    Inventor: Robert D. Simonton
  • Patent number: 4410383
    Abstract: A method for manufacturing tubular shaped thermoplastic members comprising conveying two thin sheets of thermoplastic material in close substantially parallel relationship through an ultrasonic welding station for forming a plurality of continuous spaced apart seams substantially parallel to the direction of conveying for joining the two sheets of thermoplastic material. The seams, thus formed, are cut substantially parallel to the direction of conveying such that the two sheets of thermoplastic material remain joined adjacent each side of the cuts. Preferably, the cutting takes place substantially simultaneously with the ultrasonic formation of the seams and the thin sheets of thermoplastic material are cooled prior to the ultrasonic welding. An apparatus for practicing the method is also disclosed. The method and apparatus are particularly adaptable for the manufacture of ionically permeable thermoplastic separators for use in electrochemical cells and the like.
    Type: Grant
    Filed: August 27, 1981
    Date of Patent: October 18, 1983
    Assignee: Rai Research Corporation
    Inventor: Charles P. Lipari
  • Patent number: 4351889
    Abstract: Fabricated tubular bodies for use in a positive plate of a lead-acid battery are formed in a number of desirable ways from a mixture of fabrication components. In the invention methods the fabrication components are separated into differing sets of fabrication means, at least one of which sets consists of reinforced tapes. The mixture of fabrication components may, by braiding, cartridge-belt weaving or other processes, be arranged in predetermined relation to provide for highly effective retention and support of active material around current carrying grid portions of a positive plate when the said plate is immersed in an electrolyte of a lead-acid battery, to further provide preservation of dimensional stability and of said retention of active material over extended periods of operation of the said battery, and to still further provide for adequate communication between the active material and the electrolyte via tubular wall portions formed with a desirably controlled and predetermined porosity.
    Type: Grant
    Filed: June 11, 1981
    Date of Patent: September 28, 1982
    Assignee: Koehler Manufacturing Company
    Inventor: Erik G. Sundberg