Chemically Specified Organic Solvent Containing Patents (Class 429/324)
  • Patent number: 8936881
    Abstract: A rechargeable lithium battery including a negative electrode, a positive electrode, the positive electrode including a lithium manganese oxide represented by the following Chemical Formula 1a or 1b, and an electrolyte, the electrolyte including an alkylsilyl phosphate represented by the following Chemical Formula 2:
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: January 20, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Su-Hee Han
  • Patent number: 8936880
    Abstract: A cylindrical lithium secondary battery includes an anode and a cathode, capable of occluding or emitting lithium ions; a non-aqueous electrolyte; and a CID (Current Interrupt Device) for intercepting electric current and lowering inner pressure when the inner pressure of the secondary battery is increased. The cylindrical lithium secondary battery may ensure the safety of the battery with respect to overcharging and also at the same time prevent the problem wherein the CID is activated too early, such that the battery stops its operation when the battery is used in a high-temperature environment.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: January 20, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Mi-Young Son, Jeong-Ju Cho, Ho-Chun Lee, Jong-Ho Jeon
  • Publication number: 20150010831
    Abstract: A lithium secondary battery including a positive electrode including a positive electrode active material capable of intercalating and deintercalating lithium ions, a negative electrode including a negative electrode active material capable of intercalating and deintercalating lithium ions, and a nonaqueous electrolytic solution, wherein the positive electrode active material includes an active material capable of intercalating or deintercalating lithium ions at a potential of 4.5 V or more, and the nonaqueous electrolytic solution includes a particular fluorine-containing ether compound.
    Type: Application
    Filed: January 16, 2013
    Publication date: January 8, 2015
    Inventors: Takehiro Noguchi, Makiko Uehara
  • Publication number: 20150004500
    Abstract: According to one embodiment, there is provided an electrode material. The electrode material includes an active material which includes a titanium oxide compound having a monoclinic titanium dioxide crystal structure. The electrode material further includes a compound which exists on the surface of the active material and has a trialkylsilyl group represented by the formula (I). wherein R1, R2 and R3, which may be the same or different, respectively represent an alkyl group having 1 to 10 carbon atoms.
    Type: Application
    Filed: September 15, 2014
    Publication date: January 1, 2015
    Applicant: Kabushiki Kaisha Toshiba
    Inventors: Keigo Hoshina, Wen Zhang, Yasuhiro Harada, Hiroki Inagaki, Norio Takami
  • Publication number: 20140377666
    Abstract: A non-aqueous liquid electrolyte for a secondary battery, containing: at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound; an aromatic ketone compound; an organic solvent; and an electrolyte salt, in which, with respect to 100 parts by mass of the organic solvent, the aromatic ketone compound is 0.001 to 10 parts by mass and the at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound is 0.001 to 10 parts by mass, and more than 50% by mass of the whole amount of the organic solvent is composed of a solvent with a melting point of 10° C. or less.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Kunihiko KODAMA, Michio ONO, Ikuo KINOSHITA
  • Patent number: 8906559
    Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent; a lithium salt; and an additive including vinylene carbonate, fluoroethylene carbonate, and a nitrile-based compound represented by Formula 1: wherein n ranges from 1 to 12 and R1 and R2 are independently a halogen, a hydrogen, or an alkyl group. Further, the alkyl group can be CmH(2m+1), in which m ranges from 1 to 10. The electrolyte for a rechargeable lithium battery improves storage stability of the rechargeable lithium battery at a high temperature. And, a rechargeable lithium battery including the electrolyte has improved storage stability.
    Type: Grant
    Filed: June 19, 2007
    Date of Patent: December 9, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Euy-Young Jung, Duck-Chul Hwang, Jong-Hwa Lee, In-Tae Mun, Sae-Weon Roh, So-Hyun Hur, Yong-Chul Park, Jeom-Soo Kim, Jae-Yul Ryu
  • Patent number: 8906546
    Abstract: A non-aqueous electrolyte and a lithium air battery including the same. The non-aqueous electrolyte may include an oxygen anion capturing compound to effectively dissociate the reduction reaction product of oxygen formed during discharging of the lithium air battery, reduce the overvoltage of the oxygen evolution reaction occurring during battery charging, and enhance the energy efficiency and capacity of the battery.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: December 9, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Young-gyoon Ryu, Dong-min Im, Myung-jin Lee, Dong-joon Lee, Sang-bok Ma
  • Publication number: 20140342249
    Abstract: A rechargeable lithium metal or lithium-ion cell comprising a cathode having a cathode active material and/or a conductive supporting structure, an anode having an anode active material and/or a conductive supporting nano-structure, a porous separator electronically separating the anode and the cathode, a highly concentrated electrolyte in contact with the cathode active material and the anode active material, wherein the electrolyte contains a lithium salt dissolved in an ionic liquid solvent with a concentration greater than 3 M. The cell exhibits an exceptionally high specific energy, a relatively high power density, a long cycle life, and high safety with no flammability.
    Type: Application
    Filed: May 16, 2013
    Publication date: November 20, 2014
    Inventors: Hui He, Bor Z Jang, Yanbo Wang, Aruna Zhamu
  • Patent number: 8889302
    Abstract: Disclosed is a nonaqueous electrolytic solution which forms a nonaqueous-electrolyte battery having high capacity and excellent storage characteristics at high temperatures, while sufficiently enhancing safety at the time of overcharge, and a nonaqueous-electrolyte battery using the same. The nonaqueous electrolytic solution has an electrolyte and a nonaqueous solvent with (A) a compound of formula (2): wherein R7 is an optionally halogenated and/or phenylated alkyl group comprising 1-12 carbon atoms, R8 to R12 are independently a hydrogen atom, a halogen atom, an optionally halogenated ether or alkyl group comprising 1-12 carbon atoms, and at least one of R8 to R12 is an optionally halogenated alkyl group comprising 2-12 carbon atoms; and/or (B) a carboxylic acid ester with a phenyl group substituted by at least one alkyl group (having 4 or more carbon atoms) that is optionally substituted.
    Type: Grant
    Filed: August 16, 2012
    Date of Patent: November 18, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yumiko Nakagawa, Minoru Kotato, Daisuke Noda, Shinichi Kinoshita
  • Patent number: 8883344
    Abstract: An electrolyte for a lithium secondary battery having flame retardancy, low negative electrode interfacial resistance, and excellent high temperature properties and life characteristics, and a lithium secondary battery including the same. An electrolyte for a lithium secondary battery of the present invention may include a non-aqueous organic solvent, a lithium salt, fluorinated ether or phosphazene, and a resistance-improving additive represented as the following chemical formula (1): FSO2—R1—SO2F??[Chemical Formula 1] wherein R1 is a C1-C12 hydrocarbon unsubstituted or substituted with at least one fluorine.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: November 11, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sinyoung Park, Yongbeom Lee, Sunyoung Kim, Bora Lee
  • Patent number: 8877389
    Abstract: There is provided a lithium secondary cell having specifically excellent discharge capacity, rate characteristics and further cycle characteristics and improved incombustibility (safety). The lithium secondary cell comprises a negative electrode, a non-aqueous electrolytic solution and a positive electrode, in which an active material for the negative electrode comprises lithium titanate and the non-aqueous electrolytic solution comprises a fluorine-containing solvent.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: November 4, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Meiten Koh, Hideo Sakata, Hitomi Nakazawa, Hiroyuki Arima
  • Patent number: 8871391
    Abstract: Method of forming lithium-containing electrolytes are provided using wet chemical synthesis. In some examples, the lithium containing electrolytes are composed of ?-Li3PS4 or Li4P2S7. The solid electrolyte may be a core shell material. In one embodiment, the core shell material includes a core of lithium sulfide (Li2S), a first shell of ?-Li3PS4 or Li4P2S7, and a second shell including one of ?-Li3PS4 or Li4P2S7 and carbon. The lithium containing electrolytes may be incorporated into wet cell batteries or solid state batteries.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: October 28, 2014
    Assignee: UT-Battelle, LLC
    Inventors: Chengdu Liang, Zengcai Liu, Wujun Fu, Zhan Lin, Nancy J. Dudney, Jane Y. Howe, Adam J. Rondinone
  • Patent number: 8859145
    Abstract: A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS2) or a mixture of iron disulfide (FeS2) and iron sulfide (FeS) and conductive carbon particles. A cathode slurry is prepared comprising the FeS2 or FeS2 plus FeS powder, conductive carbon, binder, and a solvent. The binder is preferably a styrene-ethylene/butylene-styrene (SEBS) block copolymer. There is an advantage discovered in utilizing a hydronaphthalene solvent to form the cathode slurry. The preferred solvent is 1,2,3,4-tetrahydronaphthalene or decahydronaphthalene and mixtures thereof. The slurry mixture is coated onto a conductive substrate and the solvent evaporated leaving a dry cathode coating on the substrate. Higher drying temperature may be used resulting in a dry cathode coating which resists cracking. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.
    Type: Grant
    Filed: May 23, 2008
    Date of Patent: October 14, 2014
    Assignee: The Gillette Company
    Inventors: Maya Stevanovic, Michael Pozin, Yelena Kouznetsova, Steven J. Specht, Fred J. Berkowitz
  • Publication number: 20140302403
    Abstract: A non-aqueous Magnesium electrolyte comprising: (a) at least one organic solvent; (b) at least one electrolytically active, soluble, inorganic Magnesium (Mg) salt complex represented by the formula: MgaZbXc wherein a, b, and c are selected to maintain neutral charge of the molecule, and Z and X are selected such that Z and X form a Lewis Acid, and 1?a?10, 1?b?5, and 2?c?30. Further Z is selected from a group consisting of aluminum, boron, phosphorus, titanium, iron, and antimony; X is selected from the group consisting of I, Br, Cl, F and mixtures thereof. Rechargeable, high energy density Magnesium cells containing an cathode, an Mg metal anode, and an electrolyte of the above-described type are also disclosed.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 9, 2014
    Inventors: Robert Ellis Doe, Ruoban HAN, Yossef GOFER, Doron AURBACH, Nir POUR, Evgeny STERENBERG
  • Patent number: 8852295
    Abstract: A secondary battery includes: an electric cell layer including a stack structure sequentially including: a positive electrode layer, a separator layer, and a negative electrode layer having an electrolyte higher in conductivity than an electrolyte of at least one of the separator layer and the positive electrode layer.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: October 7, 2014
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Yasunari Hisamitsu, Hideaki Horie, Taketo Kaneko, Osamu Shimamura
  • Patent number: 8841035
    Abstract: Disclosed are a flame retardant electrolyte solution for a rechargeable lithium battery including a lithium salt, a linear carbonate-based solvent, an ionic liquid including ammonium cations, and a phosphoric acid-based solvent, and a rechargeable lithium battery including the same.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: September 23, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Nam-Soon Choi, Irina Profatilova, Sung-Soo Kim, Eui-Hwan Song, Young-Mi Park
  • Patent number: 8841034
    Abstract: An electrolyte for an electrochemical device according to the present invention has a chemical structure formula represented by a general formula (1): where M is a group 13 or 15 element of the periodic table; A+ is an alkali metal ion or an onium ion; m is a number of 1-4 when M is a group 13 element, and is a number of 1-6 when M is a group 15 element; n is a number of 0-3 when M is a group 13 element, and is a number of 0-5 when M is a group 15 element; R is a halogen atom, a C1-C10 halogenated alkyl group, a C6-C20 aryl group, or a C6-C20 halogenated aryl group; a hydrogen atom in R may be replaced with a specific substituent; and a carbon atom in R may be replaced by a nitrogen atom, a sulfur atom or an oxygen atom.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: September 23, 2014
    Assignee: Central Glass Company, Limited
    Inventors: Shoichi Tsujioka, Toshinori Mitsui, Yuki Kondo, Aiichiro Fujiwara
  • Patent number: 8828604
    Abstract: A battery capable of ensuring storage characteristics and overcharge characteristics is provided. The battery comprising a cathode, an anode, and an electrolytic solution. The cathode has a cathode current collector and a cathode active material layer provided on the cathode current collector. The cathode active material layer includes an aromatic compound having three or more benzene rings. The electrolytic solution includes at least one of an ester carbonate containing a halogen and an ester carbonate containing an unsaturated bond.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: September 9, 2014
    Assignee: Sony Corporation
    Inventors: Hiroshi Horiuchi, Takehiko Tanaka, Masanori Soma
  • Publication number: 20140248542
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jinsung KIM, Narae PARK, Jinhyunk LIM, Suhee HAN, Jinbum KIM, Jungkang OH
  • Patent number: 8822086
    Abstract: The invention provides a solvent for an electrolyte solution, an electrolyte solution, and a gel-like electrolyte superior in oxidation resistance and flame resistance. A solvent for an electrolyte solution comprising at least one boric ester represented by the following formula (I), and a boric ester represented by the following formula (II): B(ORf)3 (I); B(OCH2CH2CN)3 (II) wherein, in formula (I), each Rf independently represents CH2(CF2)nCF3 or CH(CF3)2, n is an integer from 0 to 6, and at least a part of each of —ORf and —OCH2CH2CN included in the boric esters is transesterified.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: September 2, 2014
    Assignee: National University Corporation Shizuoka University
    Inventors: Tatsuo Fujinami, Yasutaka Tanaka, Yasutoshi Iriyama
  • Patent number: 8815453
    Abstract: The battery has an electrode assembly that includes one or more anodes and one or more cathodes. A first liquid phase is positioned in an active region of the electrode assembly. The first phase includes a first fire retardant and an electrolyte. A second liquid phase is in contact with the first liquid phase. The second liquid phase includes a second fire retardant that is different from the first fire retardant.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: August 26, 2014
    Assignee: Quallion LLC
    Inventor: Hisashi Tsukamoto
  • Patent number: 8802285
    Abstract: An organic electrolytic solution includes a lithium salt; an organic solvent containing a high dielectric constant solvent; and a polymerizable cycloolefin monomer, and an lithium battery employing the same. The organic electrolytic solution prevents decomposition of an electrolyte, and thus the lithium battery employing the organic electrolytic solution has improved cycle characteristics and lifetime.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: August 12, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Yoon-sok Kang, Dong-joon Lee, Seok-soo Lee, Seung-sik Hwang
  • Patent number: 8802298
    Abstract: A non-aqueous electrolyte secondary cell having high temperature storage characteristics and cycle characteristics is provided. This object is realized by adopting the following configuration. The non-aqueous electrolyte secondary cell includes a positive electrode having a positive electrode active material; a negative electrode having a negative electrode active material; and a non-aqueous electrolyte having a non-aqueous solvent and an electrolyte salt. And the positive electrode active material contains a compound represented by Lia(NibCocMnd)1?x?yWxZryO2 (0.9?a?1.2, 0.3?b?0.6, 0.1?c?0.7, 0?d?0.4, b+c+d=1, 0.001?x?0.05, 0.001?y?0.05); and the non-aqueous electrolyte contains at least one compound selected from the group consisting of cyclohexylbenzene, tert-butylbenzene and tert-amylbenzene in a total concentration of 0.1 to 5% by mass relative to the mass of the non-aqueous electrolyte.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: August 12, 2014
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Shinya Miyazaki, Hironori Shirakata
  • Patent number: 8795904
    Abstract: A series of polar and aprotic organic molecules, which, when used as solvents or additives in nonaqueous electrolytes, afford improved performance for electrochemical cells that operate at high voltages. These polar and aprotic solvents or additives may contain at least one unsaturated functionality per molecule. The unsaturated functionality is conjugated with the polar functionality of the molecule. The unsaturated functionality that is either a double or triple bond could be between carbon-carbon, or between carbon-heteroatom, or between hetroatom-heteroatom. Nonaqueous electrolyte solutions are provided comprising one or more lithium salts dissolved in the mixture solvents, which comprises, in all possible ratios, at least one of the polar, aprotic and unsaturated solvent or additives, one or more cyclic carbonic diesters such as ethylene carbonate, and one or more acyclic carbonic diesters such as dimethyl carbonate, diethyl carbonate, and ethylmethyl carbonate.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: August 5, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventor: Kang Conrad Xu
  • Patent number: 8795544
    Abstract: One object is to provide a power storage device including an electrolyte using a room-temperature ionic liquid which includes a univalent anion and a cyclic quaternary ammonium cation having excellent reduction resistance. Another object is to provide a high-performance power storage device. A room-temperature ionic liquid which includes a cyclic quaternary ammonium cation represented by a general formula (G1) below is used for an electrolyte of a power storage device. In the general formula (G1), one or two of R1 to R5 are any of an alkyl group having 1 to 20 carbon atoms, a methoxy group, a methoxymethyl group, and a methoxyethyl group. The other three or four of R1 to R5 are hydrogen atoms. A? is a univalent imide anion, a univalent methide anion, a perfluoroalkyl sulfonic acid anion, tetrafluoroborate (BF4?), or hexafluorophosphate (PF6?).
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: August 5, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kyosuke Ito, Toru Itakura
  • Patent number: 8792224
    Abstract: Disclosed herein is a hybrid capacitor including: a first structure including a cathode containing activated carbon and an anode containing lithium; and a second structure including activated carbon layers formed on both surfaces of a current collector. With the hybrid capacitor, characteristics of an LIC and characteristics of an EDLC are implemented in a single cell, thereby making it possible to increase energy density and improve output characteristics.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: July 29, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hak Kwan Kim, Dong Hyeok Choi, Bae Kyun Kim, Jun Hee Bae
  • Patent number: 8785056
    Abstract: In one aspect, a rechargeable lithium battery including an electrolyte for the rechargeable lithium battery is provided. The electrolyte for the rechargeable lithium battery includes: a non-aqueous organic solvent; a lithium salt; and a compound represented by Chemical Formula 1.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: July 22, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Dai-In Park, Ho-Seok Yang, In-Haeng Cho
  • Patent number: 8785015
    Abstract: Disclosed are an electrolyte for a secondary battery, and a secondary battery including the same, the electrolyte including an electrolyte salt; an electrolyte solvent; and a compound generating heat through oxidation at voltages higher than drive voltage of a cathode, wherein the compound can decompose or evaporate electrolyte components by oxidation heat, thereby causing gas generation. Also, the compound is included in an internal pressure increase accelerant for a battery. Upon overcharge, since a compound subjected to oxidation at voltages higher than normal drive voltage of a cathode generates heat, electrolyte components can be decomposed or evaporated, thereby generating gas by the oxidation heat. Accordingly, it is possible to operate a safety means of a battery, without using an internal pressure increasing material directly generating gas through oxidation at overcharge voltage as the electrolyte additive, and thus to improve the overcharge safety of a secondary battery.
    Type: Grant
    Filed: May 15, 2008
    Date of Patent: July 22, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Mi Young Son, Jeong-Ju Cho, Hochun Lee, Joomi Jeon, Sunghoon Yu
  • Patent number: 8748045
    Abstract: A lithium battery and a method for fabricating the same are provided. The lithium battery includes an anode, a cathode located opposite to the anode, a separator and an electrolyte solution. The separator is located between the anode and the cathode, wherein the anode, the cathode and the separator commonly define a containing region. The electrolyte solution is located in the containing region, and includes an organic solvent, a lithium salt and an additive. The additive includes a maleimide-based compound and a hydroxyl-containing species having a molecular weight less than 1000, and a content of the hydroxyl-containing species in the electrolyte solution ranges between 0.05 wt % and 5 wt %. The lithium battery and the fabrication method thereof can solve problems of water contained in the battery, and an environment with high dryness and low moisture content is unnecessary for fabrication, thereby reducing the production cost and enhancing the battery performance.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: June 10, 2014
    Assignee: National Taiwan University of Science and Technology
    Inventors: Fu-Ming Wang, Chin-Shu Cheng
  • Patent number: 8748046
    Abstract: An embodiment lithium-ion battery comprising a lithium-ion electrolyte of ethylene carbonate; ethyl methyl carbonate; and at least one solvent selected from the group consisting of trifluoroethyl butyrate, ethyl trifluoroacetate, trifluoroethyl acetate, methyl pentafluoropropionate, and 2,2,2-trifluoroethyl propionate. Other embodiments are described and claimed.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: June 10, 2014
    Assignees: California Institute of Technology, University of Southern California
    Inventors: Marshall C. Smart, Ratnakumar V. Bugga, G. K. Surya Prakash, Kiah Smith, Pooja Bhalla
  • Patent number: 8741473
    Abstract: A pouch-type lithium secondary battery includes an electrode assembly having an anode made of carbon material capable of occluding or emitting lithium ions, a cathode made of lithium-containing oxide, and a separator interposed between the cathode and the anode for electrical insulation therebetween; a pouch-type case made of sheet to provide a space receiving the electrode assembly; and a non-aqueous electrolyte injected into the electrode assembly. The non-aqueous electrolyte is a non-linear carbonate-based non-aqueous electrolyte including a lithium salt, (a) a cyclic carbonate compound, and (b) a linear ester compound selected from propionate-based compound, methyl butyrate, and propyl acetate, or their mixtures. During LiPF6 IM dissolution, the non-aqueous electrolyte has an ion conductivity of 9 mS/cm or above at about 23° C.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: June 3, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Ho-Chun Lee, Jeong-Ju Cho, Jong-Ho Jeon
  • Patent number: 8741479
    Abstract: An electrolyte for a lithium secondary battery including a lithium salt, a nonaqueous organic solvent, and an additive, in which the additive is composed of one or more compounds including a purinone or a purinone derivative. The lithium secondary battery with improved life and high-temperature storage may be provided by using the electrolyte for a lithium secondary battery according to an embodiment of the present invention.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: June 3, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-sok Kang, Jun-young Mun, Min-sik Park, Jin-hwan Park, Mi-jeong Song
  • Patent number: 8734668
    Abstract: Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and a set of additive compounds, which impart these desirable performance characteristics.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: May 27, 2014
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Vinay Bhat, Gang Cheng, Steven Kaye, Bin Li, Risa Olugbile, Jen-Hsien Yang
  • Patent number: 8735004
    Abstract: An overcharge inhibitor is provided which increases an internal resistance of a battery, being electropolymerized by reaction with a positive electrode at a high potential in overcharging. The overcharge inhibitor is produced by using a polymer containing a polymerizable monomer as a repeating unit. The polymerizable monomer has a functional group that is electropolymerized at a potential of 4.3 to 5.5 V based on a lithium metal reference.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: May 27, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Jinbao Zhao, Norio Iwayasu, Yuki Okuda, Hidetoshi Honbo
  • Patent number: 8728670
    Abstract: The invention provides a nonaqueous-electrolyte battery which has a positive electrode 3 including a positive active material, a negative electrode 4 including a negative active material having a lithium insertion/release potential higher than 1.0 V (vs. Li/Li+), and a nonaqueous electrolyte, wherein an organic compound having one or more isocyanato groups has been added to the nonaqueous electrolyte.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: May 20, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Inagaki, Norio Takami
  • Patent number: 8722242
    Abstract: A magnesium battery, having an anode containing magnesium; a cathode stable to a voltage of at least 2.6 V relative to a magnesium reference; and an electrolyte containing an electrochemically active magnesium salt obtained by reaction of a Grignard reagent or Hauser base with a boron compound of formula BR3 is provided. The electrolyte is stable to 2.6 E.V. vs. Mg in the presence of stainless steel.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: May 13, 2014
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: John Muldoon, Claudiu Bogdan Bucur
  • Patent number: 8722255
    Abstract: A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non-aqueous solvent. The non-aqueous electrolytic solution further contains a vinylene carbonate compound in an amount of 0.01 to 10 wt. %, and an alkyne compound in an amount of 0.01 to 10 wt. %.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: May 13, 2014
    Assignee: Ube Industries, Ltd.
    Inventors: Koji Abe, Kazuhiro Miyoshi, Takaaki Kuwata
  • Patent number: 8697291
    Abstract: The present technology relates to stabilizing additives and electrolytes containing the same for use in electrochemical devices such as lithium ion batteries and capacitors. The stabilizing additives include triazinane triones and bicyclic compounds comprising succinic anhydride, such as compounds of Formulas I and II described herein.
    Type: Grant
    Filed: October 7, 2010
    Date of Patent: April 15, 2014
    Assignee: UChicago Argonne, LLC
    Inventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine
  • Patent number: 8691434
    Abstract: A magnesium ion containing non-aqueous electrolyte in which magnesium ions and aluminum ions are dissolved in an organic etheric solvent, and which is formed by: adding metal magnesium, a halogenated hydrocarbon RX, an aluminum halide AlY3, and a quaternary ammonium salt R1R2R3R4N+Z? to an organic etheric solvent; and applying a heating treatment while stirring them (in the general formula RX representing the halogenated hydrocarbon, R is an alkyl group or an aryl group, X is chlorine, bromine, or iodine, in the general formula AlY3 representing the aluminum halide, Y is chlorine, bromine, or iodine, in the general formula R1R2R3R4N+Z? representing the quaternary ammonium salt, R1, R2, R3, and R4 represent each an alkyl group or an aryl group, and Z? represents chloride ion, bromide ion, iodide ion, acetate ion, perchlorate ion, tetrafluoro borate ion, hexafluoro phosphate ion, hexafluoro arsenate ion, perfluoroalkyl sulfonate ion, or perfluoroalkyl sulfonylimide ion.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: April 8, 2014
    Assignee: Sony Corporation
    Inventors: Kenta Yamamoto, Yuri Nakayama
  • Patent number: 8685562
    Abstract: A nonaqueous electrolytic solution that can provide a battery that is low in gas generation, has a large capacity, and is excellent in storage characteristics and cycle characteristics. The solution contains an electrolyte, a nonaqueous solvent dissolving the electrolyte, 0.001 vol % to 5 vol % of a compound represented by Formula (1), and further contains at least one compound selected from the group consisting of cyclic carbonate compounds having carbon-carbon unsaturated bonds, cyclic carbonate compounds having fluorine atoms, monofluorophosphates, and difluorophosphates. In Formula (1), R1 to R3 each independently represent an alkyl group having 1 to 12 carbon atoms, optionally substituted by a halogen atom; and n is an integer of 0 to 6.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: April 1, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Minoru Kotato, Shinichi Kinoshita
  • Patent number: 8679682
    Abstract: A nonaqueous-electrolyte battery includes a positive electrode, a negative electrode which is constituted of a negative-electrode current collector and a layer containing a negative active material and deposited on one or each side of the negative-electrode current collector and in which the layer contains at least one member selected from lithium carbonate, lithium sulfide, lithium phosphide, and lithium fluoride and further contains a lithium-titanium composite oxide, and a nonaqueous electrolyte.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: March 25, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Inagaki, Norio Takami, Shinsuke Matsuno
  • Patent number: 8679685
    Abstract: Disclosed is a lithium secondary battery. The lithium secondary battery includes a cathode, an anode, a separator and a non-aqueous electrolyte solution. Either the cathode or the anode or both include metal oxide coating layers on electrode active material particles forming the electrode or a metal oxide coating layer on the surface of an electrode layer formed on a current collector. The non-aqueous electrolyte solution contains an ionizable lithium salt, an organic solvent, and a dinitrile compound having a specific structure. In the lithium secondary battery, degradation of the electrode is prevented and side reactions of the electrolyte solution are inhibited. Therefore, the lithium secondary battery exhibits excellent cycle life and output performance characteristics.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: March 25, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jong-Ho Jeon, Doo-Kyung Yang, Sung-Hoon Yu, Min-Hyung Lee
  • Publication number: 20140080009
    Abstract: Method of forming lithium-containing electrolytes are provided using wet chemical synthesis. In some examples, the lithium containing electrolytes are composed of ?-Li3PS4 or Li4P2S7. The solid electrolyte may be a core shell material. In one embodiment, the core shell material includes a core of lithium sulfide (Li2S), a first shell of ?-Li3PS4 or Li4P2S7, and a second shell including one of ?-Li3PS4 or Li4P2S7 and carbon. The lithium containing electrolytes may be incorporated into wet cell batteries or solid state batteries.
    Type: Application
    Filed: November 26, 2013
    Publication date: March 20, 2014
    Applicant: UT-Battelle, LLC
    Inventors: Chengdu Liang, Zengcai Liu, Wujun Fu, Zhan Lin, Nancy J. Dudney, Jane Y. Howe, Adam J. Rondinone
  • Patent number: 8673505
    Abstract: A non-aqueous electrolyte secondary battery including a unit cell including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, the positive electrode capacity being greater than the negative electrode capacity, and at least a portion of the non-aqueous electrolyte is gasified during charging.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: March 18, 2014
    Assignees: Panasonic Corporation, Public University Corporate Osaka City University
    Inventors: Tsutomu Ohzuku, Hiroshi Yoshizawa
  • Patent number: 8673508
    Abstract: A nonaqueous electrolytic solution for lithium battery comprises an electrolyte salt dissolved in a nonaqueous solvent and contains a carboxylate compound represented by the following general formula (I) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution. (In the formula R1 and R2 each independently represent a hydrogen atom, or an alkyl group having from 1 to 6 carbon atoms; R3 represents a hydrogen atom, a methyl group, or a group —CH2CO2CR1R2C?CH (R1 and R2 have the same meaning as above).) A lithium battery uses the nonaqueous electrolytic solution having excellent cycle property and storage property.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: March 18, 2014
    Assignee: Ube Industries, Ltd.
    Inventors: Koji Abe, Kazuhiro Miyoshi
  • Patent number: 8673503
    Abstract: Disclosed are gel electrolytes comprising a polymer, which is a cross-linked polyurethane prepared from a poly(alkyleneoxide) triol and a diisocyanate compound; a lithium salt; and a solvent, which is a carbonate solvent, a lactone solvent, or mixtures thereof.
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: March 18, 2014
    Assignee: Indian Institute of Technology Bombay
    Inventors: Ramamurthy Balaji, Ajit R. Kulkarni, Raman S. Srinivasa
  • Patent number: 8669002
    Abstract: To provide a thermoplastic resin microporous film being difficult in longitudinal tearing and excellent in tear resistance; a microporous film comprising a thermoplastic resin, wherein a melt flow rate of the thermoplastic resin in the microporous film is in the range of 0.1 to 2.0 g/10 min, tensile strength in a cross-machine direction is in the range of 5 to 10 MPa and tensile elongation in the cross-machine direction is 300% or more.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: March 11, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Yasuhiro Yamamoto, Hitoshi Satou, Kazuyuki Fukudome
  • Patent number: 8669114
    Abstract: The subject of the invention at hand are novel, a little basic, fluorinated pentafluorophenyl imide anions, which can be used as anions in ionic liquids. Methods for producing ionic liquids are described, which contain these novel pentafluorophenyl imide ions as anions, as well as quaternary organic ammonium ions, guanidinium ions, N-organo-pyridinium ions, imidazolium, imidazolidinium or benzimidazolidinium ions, alkyl-alkylidene phosphoranes or aryl-alkylidene phosphoranes as cations. Alternative methods according to the present invention provide ionic liquids through reaction of ketene N,N-diacetals or alkyl or aryl-alkylidene phosphoranes with acids. The ionic liquids according to the present invention are suitable, for example, as solvents for syntheses, as mobile and/or stationary phase in chromatography, as electrolyte systems for batteries, galvanic elements, fuel cells and rechargeable battery packs.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: March 11, 2014
    Assignee: Philipps-Universitaet Marburg
    Inventors: Jorg Sundermeyer, Thomas Linder
  • Publication number: 20140065492
    Abstract: The present invention provides an electrode that can be used for a sodium secondary battery having a larger discharge capacity when charging and discharging are performed repeatedly than that of the prior art. This sodium secondary battery electrode contains tin (Sn) powder as an electrode active material. The electrode, particularly, further contains one or more electrode-forming agents selected from the group consisting of poly(vinylidene fluoride) (PVDF), poly(acrylic acid) (PAA), poly(sodium acrylate) (PAANa), and carboxymethylcellulose (CMC), thereby making it possible to provide a sodium secondary battery having even greater electrode performance.
    Type: Application
    Filed: March 19, 2012
    Publication date: March 6, 2014
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shinichi Komaba, Naoaki Yabuuchi, Wataru Murata, Toru Ishikawa, Yuta Matsuura, Satoru Kuze
  • Patent number: 8647780
    Abstract: The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, 0, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FXI0)N—(OX2F) wherein X1 and X2 are identical or different and comprise SO or PF, and their use as solvent in electrochemical devices. Said composition comprises a salt wherein the anionic charge is delocalised, and can be used, inter alia, as electrolyte.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: February 11, 2014
    Assignee: Acep Inc.
    Inventors: Christophe Michot, Michel Armand, Michel Gauthier, Nathalie Ravet