Separator, Retainer, Spacer Or Materials For Use Therewith Patents (Class 429/247)
  • Patent number: 10797286
    Abstract: An insulating (nonconductive) microporous nonwoven polymeric battery separator comprised of a single layer of enmeshed microfibers and nanofibers and supercalendered to extremely thin dimensions and high densities is provided. Such a separator accords the ability to not only attune the porosity and pore size to any desired level through a single nonwoven fabric, but provide further benefits in terms of further reduced pore size, reduced electrolyte level requirements, and reduced total volume of the subject battery cell itself. As a result, the inventive separator permits a high strength material with low porosity and low pore size to levels previously unattained. The separator, a battery including such a separator, the method of manufacturing such a separator, and the method of utilizing such a separator within a battery device, are all encompassed within this invention.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: October 6, 2020
    Assignees: Dreamweaver International Inc., Glatfelter Gernsbach, GMBH
    Inventors: Brian G. Morin, Testa Mattia, Giovanni Schnelle
  • Patent number: 10784532
    Abstract: Chemical additives are disclosed to increase solubility of salts in liquefied gas electrolytes.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: September 22, 2020
    Assignees: South 8 Technologies, Inc., The Regents of the University of California
    Inventors: Cyrus Sam Rustomji, Yangyuchen Yang, Daniel Davies, Jungwoo Lee, Ying Shirley Meng
  • Patent number: 10770743
    Abstract: A method for manufacturing an electrode having a laminated body including an insulating layer laminated on an electrode active material layer, said method comprising: a step of laminating an insulating layer on an electrode active material layer formed on a base, such that a thickness value of the insulating layer is at least twice a surface roughness Rz value of the electrode active material layer, the surface roughness Rz value being a ten point average roughness as measured in accordance with JIS B0601 1994.
    Type: Grant
    Filed: December 25, 2015
    Date of Patent: September 8, 2020
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Rie Teranishi, Kenichi Shinmei, Masashi Kanoh, Akio Shokaku, Shinichiro Ito
  • Patent number: 10756319
    Abstract: Disclosed is a method for manufacturing a separator for an electrochemical device. The method contributes to formation of a separator with good bondability to electrodes and prevents inorganic particles from detaching during an assembling process of an electrochemical device.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: August 25, 2020
    Assignees: LG Chem, Ltd., TORAY INDUSTRIES, INC.
    Inventors: Joo-Sung Lee, Jang-Hyuk Hong, Jong-Hun Kim
  • Patent number: 10756395
    Abstract: A battery has an integrated flame retardant device, wherein the battery has: a cathode layer, a separating layer, and an anode layer, wherein the separating layer is arranged between the cathode layer and the anode layer, wherein the separating layer is impermeable to electrons and permeable to at least one positive type of ion, wherein the separating layer has a flame retardant device having at least one glass fibre, which includes a closed cavity, and wherein a flame retardant is arranged in the cavity. The battery has increased fire resistance.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: August 25, 2020
    Assignee: Airbus Operations GmbH
    Inventor: Peter Linde
  • Patent number: 10700332
    Abstract: A separator having a first polymer diaphragm and a second polymer diaphragm and a layer between the first polymer diaphragm and the second polymer diaphragm including particles featuring low elasticity, the first polymer diaphragm and the second polymer diaphragm being interconnected, which may be periodically, by first support elements. In addition, a galvanic cell and a battery having such a separator are provided.
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: June 30, 2020
    Assignee: Robert Bosch GmbH
    Inventors: Bernd Schumann, Jean Fanous
  • Patent number: 10658643
    Abstract: A positive electrode plate includes a front positive electrode active material layer on a front surface of a positive electrode metal foil, and having a positive electrode large tapered portion that extends at an incline from one edge of the front surface of the positive electrode metal foil at a positive electrode large inclination angle. A negative electrode plate includes a front negative electrode active material layer on a front surface of a negative electrode metal foil, and having a negative electrode large tapered portion that extends at an incline from one edge of the front surface of the negative electrode metal foil at a negative electrode large inclination angle. The positive and negative electrode plates are alternately laminated with a separator interposed therebetween such that each of their front surfaces is oriented in the same direction in the rear-to-front directional axis along the thickness of the plates.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: May 19, 2020
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Atsushi Minagata, Masato Ogasawara, Yasuyuki Goda
  • Patent number: 10637097
    Abstract: Provided are an organic/inorganic composite electrolyte, an electrode-electrolyte assembly and a lithium secondary battery including the organic/inorganic composite electrolyte, and a manufacturing method of the electrode-electrolyte assembly. The porous organic/inorganic composite electrolyte, includes a first pore peak in a pore size range of about 100 nm to about 300 nm in a total pore distribution chart, and 50% or more of pores having a pore size range of about 100 nm to about 300 nm based on a total pore volume.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: April 28, 2020
    Assignees: Samsung SDI Co., Ltd., Hanyang University Cooperation Foundation Hanyang University
    Inventors: Manseok Han, Woocheol Shin, Duckhyun Kim, Moonsung Kim, Jeonghye Lee, Dongwon Kim, Yunchae Jung, Seulki Kim
  • Patent number: 10637063
    Abstract: A binder composition for a non-aqueous secondary battery porous membrane comprises: a polymer; and an organic solvent, wherein a boiling point of the organic solvent is 30° C. or more and 100° C. or less, and an absolute difference |SPdiff|=|SPp?SPs| between a solubility parameter SPp of the polymer and a solubility parameter SPs of the organic solvent is 1.5 or more and 6.0 or less.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: April 28, 2020
    Assignee: ZEON CORPORATION
    Inventor: Junnosuke Akiike
  • Patent number: 10622639
    Abstract: A pasting carrier for a lead-acid battery. The pasting carrier includes a nonwoven fiber mat having a thickness between 5 and 50 mils, the nonwoven fiber mat being composed of a plurality of entangled glass microfibers.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: April 14, 2020
    Assignee: Johns Manville
    Inventors: Heath H Himstedt, Souvik Nandi, John Scherlein
  • Patent number: 10615390
    Abstract: An electrode-composite separator assembly for a lithium battery, the electrode-composite separator assembly including an electrode; and a composite separator, wherein the composite separator includes a separator, and a coating film disposed on a surface of the separator, wherein the coating film includes a copolymer including an electrolyte-insoluble repeating unit and a repeating unit represented by Formula 1; and at least one selected from an inorganic particle and an organic-inorganic particle, wherein the electrode-composite separator assembly does not have an exothermic peak between 400° C. to 480° C. when analyzed by differential scanning calorimetry, wherein Formula 1 is wherein, in Formula 1, R3 is hydrogen or a C1-C5 alkyl group, and R4 is a C1-C10 alkyl group. Also, a lithium battery including the electrode-composite separator assembly.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: April 7, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Jeongkuk Shon, Junhwan Ku, Minsang Song, Sangmin Ji, Hana Kim, Myungkook Park, Byungmin Lee, Jaeman Choi
  • Patent number: 10581127
    Abstract: An anaerobic aluminum-water electrochemical cell is provided. The electrochemical cell includes: a plurality of electrode stacks, each electrode stack comprising an aluminum or aluminum alloy anode, and at least one cathode configured to be electrically coupled to the anode and having a surface characterized by an electrochemical roughness factor of at least 5 and a mean pore diameter of at least 50 ?m; one or more physical separators between each electrode stack adjacent to the cathode; a housing configured to hold the electrode stacks, an electrolyte, and the physical separators; and a water injection port, in the housing, configured to introduce water into the housing.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: March 3, 2020
    Assignee: Massachusetts Institute of Technology
    Inventors: Ian Salmon McKay, Ruaridh R. Macdonald, Thomas B. Milnes
  • Patent number: 10483513
    Abstract: A separator for a battery includes a base having an anode side configured to contact an anode of the battery and a cathode side configured to contact a cathode of the battery. The anode side has a different material consistency than the cathode side.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: November 19, 2019
    Assignee: CARL FREUDENBERG KG
    Inventors: Christoph Weber, Michael Roth
  • Patent number: 10439249
    Abstract: Provided is a lithium ion secondary battery including, as components accommodated in a container, a positive electrode that intercalates and deintercalates lithium, a negative electrode that intercalates and deintercalates lithium, a nonaqueous electrolytic solution that contains a lithium salt, and a separator that is interposed between the positive electrode and the negative electrode. The separator includes a porous resin layer containing polyolefin as a main component.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: October 8, 2019
    Assignee: Envision AESC Energy Devices Ltd.
    Inventor: Akihiro Modeki
  • Patent number: 10381625
    Abstract: A composite membrane includes: an organic layer having a plurality of through holes; and ion conductive inorganic particles disposed in the through holes, wherein a hydrophobic coating layer is disposed on a surface of the ion conductive inorganic particles.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: August 13, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wonsung Choi, Dongmin Im, Soonchul Kwon, Sungcheol Kim, Taeyoung Kim
  • Patent number: 10361461
    Abstract: A cable type secondary battery includes an inner electrode support; and a sheet-like inner electrode—separation layer—outer electrode complex which is spirally wound around the outer side of the inner electrode support. The inner electrode—separation layer—outer electrode complex is formed such that an inner electrode, a separation layer, and an outer electrode are compressed integrally. According to one embodiment, an electrode and a separation layer are bonded integrally so that the separation layer in close contact with the electrode absorbs electrolyte so as to induce a uniform supply of the electrolyte to an outer electrode active material layer, thereby increasing the stability and performance of a cable type secondary battery. In addition, the cable type secondary battery has a sheet-like electrode, whereby the resistance of the cable type secondary battery is reduced and the performance of the battery may be improved.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: July 23, 2019
    Assignee: LG Chem, Ltd.
    Inventors: In-Sung Uhm, Je-Young Kim, Yo-Han Kwon
  • Patent number: 10355257
    Abstract: Provided herein are a variety of porous separator materials, particularly those prepared by gas-assisted electrospray and electrospinning processes.
    Type: Grant
    Filed: May 16, 2018
    Date of Patent: July 16, 2019
    Assignee: Cornell University
    Inventors: Yong Lak Joo, Joseph M. Carlin, Soshana Smith
  • Patent number: 10242807
    Abstract: Provided is a lithium ion capacitor that is capable, during internal short circuiting, of suppressing an increase in capacitor temperature and controlling the onset of gasification, smoking and ignition, and of having preferably both low resistance (i.e., high output density) and high cycle characteristics. The lithium ion capacitor comprises an electrode laminated body stored in a casing together with a non-aqueous electrolytic solution containing a lithium ion-containing electrolyte; wherein the electrode laminated body is laminated so that a negative electrode collector having a negative electrode active material comprised of a carbon material, and a positive electrode body having a positive electrode active material face each other through a laminated separator where a polyolefin porous membrane and an insulating porous membrane are laminated; and characterized in that the insulating porous membrane is in contact with the negative electrode body.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: March 26, 2019
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Nobuhiro Okada, Osamu Saito, Kensuke Niimura
  • Patent number: 10205170
    Abstract: Electrodeposited copper foils having adequate puncture strength to withstand both pressure application during consolidation with negative electrode active materials during manufacture, as well as expansion/contraction during repeated charge/discharging cycles when used in a rechargeable secondary battery are described. These copper foils find specific utility as current collectors in rechargeable secondary batteries, particularly in lithium secondary battery with high capacity. Methods of making the copper foils, methods of producing negative electrode for use in lithium secondary battery and lithium secondary battery of high capacity are also described.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: February 12, 2019
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Huei-Fang Huang, Kuei-Sen Cheng, Yao-Sheng Lai, Jui-Chang Chou
  • Patent number: 10069171
    Abstract: Disclosed is a method for manufacturing an all-solid-state lithium ion battery in which a laminated battery is coated with a thermosetting resin, capable of preventing the thermosetting resin from cracking due to charge and discharge of the all-solid-state lithium ion battery after the battery is coated with the thermosetting resin, the method including a first step of laminating a cathode layer, a solid electrolyte layer and an anode layer to form a laminated battery having both end faces in a lamination direction and side faces, a second step of charging the laminated battery until the laminated battery has 100% to 112% of state of charge, a third step of coating at least the side faces of the laminated battery that is charged with a thermosetting resin in an uncured state, and a fourth step of heating to cure the thermosetting resin.
    Type: Grant
    Filed: December 11, 2017
    Date of Patent: September 4, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masashi Kodama
  • Patent number: 10066032
    Abstract: The present invention includes a process for producing treated filler that includes (a) treating a slurry that includes untreated filler where the untreated filler has not been previously dried, with a treating composition that includes a treating agent, thereby forming a treated filler slurry, and (b) drying the treated filler slurry to produce treated filler. The treating agent can include an unsaturated fatty acid, derivative of an unsaturated fatty acid, or salt thereof. The present invention also is directed to treated filler prepared by the process, as well as rubber compounding compositions and tires including the treated filler.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: September 4, 2018
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Peter Lawrence Votruba-Drzal, Justin Jonathan Martin, Timothy Allen Okel, Raphael O. Kollah, Truman Wilt, Clint Steven Edelman, Brittany Smith, Luke Andrew Wolfe
  • Patent number: 9979002
    Abstract: Disclosed are a separator for an electrochemical device substantially comprising inorganic particles to provide an excellent mechanical strength, an electrochemical device comprising the same, and a method of manufacturing the separator using a high internal phase emulsion (HIPE).
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: May 22, 2018
    Assignees: LG Chem, Ltd., TORAY INDUSTRIES, INC.
    Inventors: Jin-Woo Kim, Joo-Sung Lee, Jong-Hun Kim
  • Patent number: 9954248
    Abstract: An object of the present invention is to provide a solid lithium secondary battery in which occurrence of short-circuit is suppressed during charging. The object is attained by providing a solid lithium secondary battery comprising an anode current collector, a solid electrolyte layer, a cathode active material layer, and a cathode current collector in this order, wherein the solid electrolyte layer is provided on a surface of the anode current collector, the solid electrolyte layer contains a sulfide solid electrolyte particle, a surface shape of the solid electrolyte layer, which faces the anode current collector, is formed in correspondence with a surface shape of the anode current collector, and 10-point average roughness (Rz) of the surface of the anode current collector on a solid electrolyte layer side, and 10-point average roughness (Rz) of a surface of the solid electrolyte layer on an anode current collector side are in a range of 1.8 ?m to 2.5 ?m, respectively.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: April 24, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takamasa Ohtomo, Yuki Kato
  • Patent number: 9905882
    Abstract: A positive active material layer for a rechargeable lithium battery including a positive active material and a protection film-forming material is disclosed. A separator for a rechargeable lithium battery including a substrate and a porous layer positioned at least one side of the substrate and including a protection film-forming material is also disclosed. A rechargeable lithium battery can include at least one of the positive active material layer and the separator.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: February 27, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hironari Takase, Hokuto Yokotsuji
  • Patent number: 9843048
    Abstract: Embodiments of the invention provide batteries, electrodes, and methods of making the same. According to one embodiment, a battery may include a positive plate having a grid pasted with a lead oxide material, a negative plate having a grid pasted with a lead based material, a separator separating the positive plate and the negative plate, and an electrolyte. A nonwoven glass mat may be in contact with a surface of either or both the positive plate or the negative plate to reinforce the plate. The nonwoven glass mat may include a plurality of first coarse fibers having fiber diameters between about 6 ?m and 11 ?m and a plurality of second coarse fibers having fiber diameters between about 10 ?m and 20 ?m.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: December 12, 2017
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G Dietz, III
  • Patent number: 9825269
    Abstract: A method for manufacturing a polyolefin separator, including forming a sheet including a polyolefin resin and a plasticizer; stretching the sheet E1 times in a longitudinal direction at a temperature of T1, followed by stretching the sheet E2 times in a transverse direction at a temperature of T2, wherein T1<115° C., T2<115° C., and T2?T1, and E1×E2=55 to 80, E1?7, and E2?7; and extracting the plasticizer from the stretched sheet.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: November 21, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Kee Wook Kim, Sang Ho Lee, Yong Bae Lee, Jung Seong Lee, Jung Sue Jang, Jae Hyun Cho, Dae Hyun Hong
  • Patent number: 9748604
    Abstract: Electrolyte compositions for batteries such as lithium ion and lithium air batteries are described. In some embodiments the compositions are liquid compositions comprising (a) a homogeneous solvent system, said solvent system comprising a perfluropolyether (PFPE) and polyethylene oxide (PEO); and (b) an alkali metal salt dissolved in said solvent system. In other embodiments the compositions are solid electrolyte compositions comprising: (a) a solid polymer, said polymer comprising a crosslinked product of a crosslinkable perfluropolyether (PFPE) and a crosslinkable polyethylene oxide (PEO); and (b) an alkali metal ion salt dissolved in said polymer. Batteries containing such compositions as electrolytes are also described.
    Type: Grant
    Filed: October 17, 2013
    Date of Patent: August 29, 2017
    Assignee: The University of North Carolina at Chapel Hill
    Inventors: Joseph M. DeSimone, Ashish Pandya, Dominica Wong, Alessandra Vitale
  • Patent number: 9711774
    Abstract: The present application provides a lithium ion battery including a thermal sensitive layer comprising polymer particles. The thermal sensitive layer may be disposed between the electrodes and the separator. When the lithium ion battery is under thermal runaway condition and the internal temperature rises to a critical temperature, the polymer particles undergo a thermal transition process (melting) to form an insulating barrier on the electrodes, which blocks lithium ion transfer between the electrodes and shuts down the internal current of the battery.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: July 18, 2017
    Assignee: NANO AND ADVANCED MATERIALS INSTITUTE LIMITED
    Inventors: Chenmin Liu, Yeming Xu, Chi Ho Kwok, Ning Tu
  • Patent number: 9711771
    Abstract: A membrane includes a porous membrane or layer made of a polymeric material having a plurality of surface treated (or coated) particles (or ceramic particles) having an average particle size of less than about 1 micron dispersed therein. The polymeric material may be selected from the group consisting of polyolefins, polyamides, polyesters, co-polymers thereof, and combinations thereof. The particles may be selected from the group consisting of boehmite (AlOOH), SiO2, TiO2, Al2O3, BaSO4, CaCO3, BN, and combinations thereof, or the particles may be boehmite. The surface treatment (or coating) may be a molecule having a reactive end and a non-polar end. The particles may be pre-mixed in a low molecular weight wax before mixing with the polymeric material. The membrane may be used as a battery separator.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: July 18, 2017
    Assignee: Celgard, LLC
    Inventors: C. Glen Wensley, Lie Shi
  • Patent number: 9692040
    Abstract: A method of preparing an electrochemical electrode which is partially or totally covered with a film that is obtained by spreading an aqueous solution comprising a water-soluble binder over the electrode and subsequently drying same. The production cost of the electrodes thus obtained is reduced and the surface porosity thereof is associated with desirable resistance values.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: June 27, 2017
    Assignee: HYDRO-QUEBEC
    Inventors: Karim Zaghib, Michel Armand, Abdelbast Guerfi, Michel Perrier, Elisabeth Dupuis, Patrick Charest
  • Patent number: 9683101
    Abstract: In accordance with at least certain embodiments of the present invention, a novel concept of utilizing PIMS minerals as a filler component within a microporous lead-acid battery separator is provided. In accordance with more particular embodiments or examples, the PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: June 20, 2017
    Assignee: Daramic, LLC
    Inventors: Jeffrey K. Chambers, Tejas R. Shah
  • Patent number: 9666851
    Abstract: The present invention refers to a separator and an electrochemical device having the same. The separator of the present invention comprises a non-woven fabric substrate obtained from fibers and having multiple pores formed between the fibers; and a polymer coating layer formed on a part or the whole of the surface of the fibers, wherein the polymer coating layer comprises a polymer having a tensile strength of 80 MPa or more, a tensile modulus of 3,000 MPa or more and a flexural modulus of 3,000 MPa or more. The separator of the present invention can reduce costs for manufacturing electrochemical devices, and it can control the size of pores present in the non-woven fabric substrate to prevent the generation of a leak current and provide improved mechanical strength.
    Type: Grant
    Filed: June 5, 2014
    Date of Patent: May 30, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Jeong-Min Ha, Jong-Hun Kim, Su-Jin Yoon, Byeong-Gyu Cho, Jang-Hyuk Hong, Da-Kyung Han
  • Patent number: 9627722
    Abstract: Provided herein is a positive temperature coefficient film comprising an inorganic positive temperature coefficient compound. Also provided herein are a positive temperature coefficient electrode, a positive temperature coefficient separator, and a positive temperature coefficient lithium secondary battery, each of which comprises the positive temperature coefficient film.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: April 18, 2017
    Assignee: American Lithium Energy Corporation
    Inventors: Jiang Fan, Dengguo Wu
  • Patent number: 9577236
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: February 21, 2017
    Assignee: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang
  • Patent number: 9559345
    Abstract: A separator includes a non-woven fabric substrate having pores, fine thermoplastic powder located inside the pores of the non-woven fabric substrate, and a porous coating layer disposed on at least one surface of the non-woven fabric substrate. The fine thermoplastic powder has an average diameter smaller than that of the pores and a melting point lower than the melting or decomposition point of the non-woven fabric substrate. The porous coating layer includes a mixture of inorganic particles and a binder polymer whose melting point is higher than the melting or decomposition point of the fine thermoplastic powder. In the porous coating layer, the inorganic particles are fixedly connected to each other by the binder polymer and the pores are formed by interstitial volumes between the inorganic particles. Previous filling of the large pores of the non-woven fabric substrate with the fine thermoplastic powder makes the porous coating layer uniform.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: January 31, 2017
    Assignees: LG CHEM, LTD., TORAY BATTERY SEPERATOR FILM CO., LTD.
    Inventors: Su-Jin Yoon, Pil-Kyu Park, Jong-Hun Kim, Jin-Nyoung Yoo, In-Chul Kim, Sang-Young Lee
  • Patent number: 9543077
    Abstract: A separator with a heat resistant insulation layer includes a porous substrate, and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate and containing at least one kind of inorganic particles and at least one kind of a binder, wherein a content mass ratio of the inorganic particles to the binder in the heat resistant insulation layer is in a range from 99:1 to 85:15, a BET specific surface area of the inorganic particles is in a range from 3 m2/g to 50 m2/g, and a ratio of the moisture content per mass of the binder to the BET specific surface area of the inorganic particles is greater than 0.0001 and smaller than 2.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: January 10, 2017
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Takashi Honda, Kazuki Miyatake, Haruyuki Saito, Tamaki Hirai, Hironobu Muramatsu
  • Patent number: 9304368
    Abstract: An electrochromic device, which contains: one support; a first electrode layer formed on the support; a second electrode layer provided to face the first electrode layer; an electrochromic layer provided to be in contact with the first electrode layer or the second electrode layer; a solid electrolyte layer containing inorganic particles, which is filled between the first electrode layer and the second electrode layer, and is provided to be in contact with the electrochromic layer; and a protective layer provided on the second electrode layer.
    Type: Grant
    Filed: January 9, 2015
    Date of Patent: April 5, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Tohru Yashiro, Shigenobu Hirano, Toshiya Sagisaka, Mamiko Inoue, Hiroyuki Takahashi, Koh Fujimura, Yoshihisa Naijo, Kazuaki Tsuji, Yoshinori Okada, Sukchan Kim, Keiichiroh Yutani, Tamotsu Horiuchi
  • Patent number: 9295950
    Abstract: The invention relates to microporous membranes comprising polymer and having well-balanced permeability, shutdown temperature, and pin puncture strength. The invention also relates to methods for making such membranes, and the use of such membranes as battery separator film in, e.g., lithium ion secondary batteries.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: March 29, 2016
    Assignee: Toray Battery Separator Film Co., Ltd.
    Inventors: Takeshi Ishihara, Satoshi Miyaoka, Koichi Kono, Donna J. Crowther, Patrick Brant
  • Patent number: 9293748
    Abstract: Disclosed is a battery separator, comprising two fiber regions comprising glass fibers, and a middle fiber region disposed between them comprising larger average diameter fibers and specified amounts of silica, or fine fibers, or both; and processes for making the separator. Also disclosed is a battery separator, comprising a fiber region and either one or two silica-containing region(s) adjacent thereto, each of the regions containing a specified amount of silica; and processes for making the separator. Such separators are useful, e.g., in lead-acid batteries.
    Type: Grant
    Filed: September 15, 2014
    Date of Patent: March 22, 2016
    Assignee: Hollingsworth & Vose Company
    Inventors: Akshay Ashirgade, Zhiping Jiang
  • Patent number: 9252454
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a woven fabric or a knit fabric made of fibers.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: February 2, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Do Gyun Kim, Dong-Myung Kim, Dong Sub Lee, Sang Bong Nam, Sang Sok Jung
  • Patent number: 9142816
    Abstract: Provided are an alkaline battery separator and an alkaline battery including the separator. The separator includes at least a coarse layer and a dense layer denser than the coarse layer. The coarse layer contains an alkaline-resistant cellulose fiber having a freeness value of 350 to 650 ml as a whole in the proportion of 25 to 65% by weight. The alkaline-resistant cellulose fiber includes at least two kinds of alkaline-resistant cellulose fibers having different freeness with each other. The difference in freeness value between the alkaline-resistant cellulose fibers having the highest and lowest freeness values is 300 to 700 ml. The dense layer contains an alkaline-resistant cellulose fiber which as a whole has a freeness value of 0 to 400 ml. The separator has a maximum pore size of 65 ?m or smaller, and a liquid absorption capacity of 5 g/g or higher.
    Type: Grant
    Filed: September 6, 2011
    Date of Patent: September 22, 2015
    Assignee: KURARAY CO., LTD.
    Inventors: Tomohiro Hayakawa, Koichi Kambe, Hiroyuki Kawai
  • Patent number: 9138932
    Abstract: A method of making a separator for an electrochemical battery cell of a lithium ion battery includes electrospinning a non-woven polymer fiber mat onto a collection face of a collector substrate. The separator may be formed entirely of the electrospun non-woven polymer fiber mat or it may be a multi-layer composite that contains other components in addition to the electrospun non-woven polymer fiber mat. The collector substrate comprises an electrode (positive or negative) optionally covered with a ceramic particle layer such that electrospinning of the non-woven polymer fiber mat forms an electrode-separator integral segment. The electrode-separator integral segment may then be assembled into an electrochemical battery cell of a lithium ion battery.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: September 22, 2015
    Assignee: GM Global Technology Operations LLC
    Inventor: Xiaosong Huang
  • Patent number: 9118063
    Abstract: Embodiments of the invention provide batteries, electrodes, and methods of making the same. According to one embodiment, a battery may include a positive plate having a grid pasted with a lead oxide material, a negative plate having a grid pasted with a lead based material, a separator separating the positive plate and the negative plate, and an electrolyte. A nonwoven glass mat may be in contact with a surface of either or both the positive plate or the negative plate to reinforce the plate. The nonwoven glass mat may include a plurality of first coarse fibers having fiber diameters between about 6 ?m and 11 ?m and a plurality of second coarse fibers having fiber diameters between about 10 ?m and 20 ?m.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: August 25, 2015
    Inventors: Zhihua Guo, Souvik Nandi, Jawed Asrar, Albert G. Dietz, III
  • Patent number: 9112239
    Abstract: The invention provides a lithium battery, including: a cathode plate and an anode plate; a separator disposed between the cathode plate and the anode plate to define a reservoir region; and an electrolyte filled in the reservoir region. A thermal protective film is provided to cover a material of the cathode plate or the anode plate. When a battery temperature rises over an onset temperature of the thermal protective film, it undergoes a crosslinking reaction to inhibit thermal runaway. A method for fabricating the lithium ion battery is also provided.
    Type: Grant
    Filed: December 11, 2009
    Date of Patent: August 18, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Hung-Chun Wu, Chin-Shu Cheng, Jung-Mu Hsu, Fu-Ming Wang, Chang-Rung Yang, Jing-Pin Pan, Ching-Yi Su, Tsung-Hsiung Wang
  • Patent number: 9105908
    Abstract: A lithium-ion battery cell is provided that includes at least one inorganic, multi-functional constituent that has a low thermal conductivity and is suitable for reducing or restricting thermal anomalies at least locally.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: August 11, 2015
    Assignee: SCHOTT AG
    Inventors: Ulrich Peuchert, Andreas Roters, Frank-Thomas Lentes, Meike Schneider, Ulf Dahlmann, Wolfram Beier, Wolfgang Schmidbauer, Gabriele Roemer-Scheuermann
  • Patent number: 9105909
    Abstract: A separator for a battery having a porous base material layer and a polymer coating layer formed on at least a surface of the base material layer. The polymer coating layer includes a first fluorinated copolymer and a non-fluorinated polymer. A weight ratio of the first fluorinated copolymer to the non-fluorinated polymer is in a range of 3:1 to 1:3.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: August 11, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeong-Ki Ha, Yong-Beom Lee
  • Patent number: 9065117
    Abstract: Glass-fiber composites are described that include a substrate containing glass fibers and particles in contact with the glass fiber substrate. The particles may include an alkali-metal containing compound. In addition, batteries are described with an anode, a cathode, and an electrolyte. The cathode may include alkali-metal containing nanoparticles in contact with glass fibers. Also describe are methods of making a glass-fiber composite. The methods may include the steps of forming a wet laid non-woven glass fiber substrate, and contacting alkali-metal containing particles on the substrate.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: June 23, 2015
    Assignee: Johns Manville
    Inventors: Souvik Nandi, Alan Michael Jaffee, Kristin Franz Goya Obernyer, Albert G. Dietz, III
  • Patent number: 9059451
    Abstract: An electroactive material for use in an electrochemical cell, like a lithium-ion battery, is provided. The electroactive material comprises lithium titanate oxide (LTO) and has a surface coating with a thickness of less than or equal to about 30 nm that suppresses formation of gases within the electrochemical cell. Methods for making such materials and using such materials to suppress gas formation in electrochemical cells are likewise provided.
    Type: Grant
    Filed: October 18, 2012
    Date of Patent: June 16, 2015
    Assignee: GM Global Technology Operations LLC
    Inventors: Xingcheng Xiao, Mark W. Verbrugge, John S. Wang, Ping Liu
  • Patent number: 9040188
    Abstract: Embodiments of the present invention facilitate a winding process and enable auxiliary current collectors to be securely fixed to a main current collector, thereby minimizing deformation during battery charging and discharging and maintaining sufficient strength. The jelly roll includes a first auxiliary current collector, a second auxiliary current collector, a mandrel insulating layer, and an electrode plate. The first auxiliary current collector and the second auxiliary current collector are spaced apart from each other and each has a mandrel protrusion on an opposite end portion. The mandrel insulating layer insulates the auxiliary current collectors from each other and insulates the auxiliary current collectors from an exterior. The electrode plate is formed by layering a separator, a first electrode plate, a separator and a second electrode plate and is wound on an external surface of the mandrel insulating layer.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: May 26, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Ja-Hoon Cho
  • Publication number: 20150132633
    Abstract: A separator for an alkali metal ion rechargeable battery includes a porous ceramic alkali ion conductive membrane which is inert to liquid alkali ion solution as well as anode and cathode materials. The porous ceramic separator is structurally self-supporting and maintains its structural integrity at high temperature. The ceramic separator may have a thickness of at least 200 ?m and a porosity in the range from 20% to 70%. The separator may be in the form of a clad composite separator structure in which one or more layers of porous and inert ceramic or polymer membrane materials are clad to the alkali ion conductive membrane. The porous and inert alkali ion conductive ceramic membrane may comprise a NaSICON-type, LiSICON-type, or beta alumina material.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventor: Ashok V. Joshi