And Chemically Specified Inorganic Solvent Patents (Class 429/325)
  • Patent number: 10347904
    Abstract: A lithium metal anode includes a lithium metal layer and a multi-layer polymer coating disposed over the lithium metal layer. The multi-layer polymer coating includes a first outer polymeric crosslinked gel layer positioned for contact with a battery electrolyte and a second inner polymer layer disposed between the lithium metal layer and the first outer polymeric crosslinked gel layer. The first outer polymeric crosslinked gel layer includes a first polymer, a soft segment polymer, and an electrolyte. The second inner polymer layer includes a second polymer. The second inner polymer layer provides mechanical strength and serves as a physical barrier to the lithium metal layer.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 9, 2019
    Assignee: SolidEnergy Systems, LLC
    Inventors: Myung Cho, Qichao Hu
  • Patent number: 10176935
    Abstract: Disclosed are electrolyte compositions comprising aryl group containing certain fluorinated carbonate, and batteries, especially batteries having a high nominal voltage, comprising such electrolyte composition.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 8, 2019
    Assignee: SOLVAY SA
    Inventors: Hag-Soo Kim, Ji-hun Lee, Ji-Ae Choi, Moon-Hyung Choi, Eun-Ji Moon
  • Patent number: 10177407
    Abstract: Provided is a secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte solution. The nonaqueous electrolyte solution includes a boron compound having a quaternary structure expressed by Formula (1).
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: January 8, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroki Mita, Tadahiko Kubota
  • Patent number: 10164290
    Abstract: A secondary battery is provided. The secondary battery includes a cathode; an anode; and a gel electrolyte, wherein the gel electrolyte includes an electrolytic solution and a polymer, and the electrolytic solution includes an unsaturated cyclic ester carbonate represented by Formula (2): where R5 and R6 are one of a hydrogen group, a halogen group, a monovalent hydrocarbon group, a monovalent halogenated hydrocarbon group, a monovalent oxygen-containing hydrocarbon group, and a monovalent halogenated oxygen-containing hydrocarbon group; and where R5 and R6 may be bonded to each other.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: December 25, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masayuki Ihara, Tadahiko Kubota
  • Patent number: 9755275
    Abstract: A rechargeable lithium battery includes a negative electrode including a negative active material including a Si-based material, a positive electrode, and an electrolyte including a lithium salt, an organic solvent, and an additive including lithium triflate and fluoroethylene carbonate. Embodiments of the rechargeable lithium battery have excellent irreversible characteristics and cycle-life characteristics.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: September 5, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Hyun Bae, Woo-Cheol Shin, Myung-Hoon Kim, Ae-Ran Kim
  • Patent number: 9455469
    Abstract: A magnesium-ion cell comprising (a) a cathode comprising a carbon or graphitic material as a cathode active material having a surface area to capture and store magnesium thereon, wherein the cathode forms a meso-porous structure having a pore size from 2 nm to 50 nm and a specific surface area greater than 50 m2/g; (b) an anode comprising an anode current collector alone or a combination of an anode current collector and an anode active material; (c) a porous separator disposed between the anode and the cathode; (d) electrolyte in ionic contact with the anode and the cathode; and (e) a magnesium ion source disposed in the anode to obtain an open circuit voltage (OCV) from 0.5 volts to 3.5 volts when the cell is made.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: September 27, 2016
    Assignee: Nanotek Instruments, Inc.
    Inventors: Yanbo Wang, Aruna Zhamu, Bor Z. Jang
  • Patent number: 9343777
    Abstract: A non-aqueous liquid electrolyte suitable for use in a non-aqueous liquid electrolyte secondary battery comprising a negative electrode and a positive electrode, capable of intercalating and deintercalating lithium ions, and the non-aqueous liquid electrolyte, the negative electrode containing a negative-electrode active material having at least one kind of atom selected from the group consisting of Si atom, Sn atom and Pb atom, wherein the non-aqueous liquid electrolyte comprises a carbonate having at least either an unsaturated bond or a halogen atom.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: May 17, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Takashi Fujii, Noriko Shima, Youichi Ohashi, Shinichi Kinoshita
  • Patent number: 8986880
    Abstract: A nonaqueous electrolyte battery includes: an electrode group including a positive electrode and a negative electrode; and a nonaqueous electrolyte including an electrolytic solution, the electrode group including an insulating layer, the insulating layer containing a ceramic, the electrolytic solution including an electrolyte salt and an additive, the electrolyte salt including the compound of formula (1), and the additive being at least one of the compounds of formulae (2) to (14), and the compound of formula (1) being contained in 0.001 mol/L to 2.5 mol/L with respect to the electrolytic solution.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: March 24, 2015
    Assignee: Sony Corporation
    Inventors: Toru Odani, Tadahiko Kubota
  • Patent number: 8972229
    Abstract: Computer-readable medium and methods for photolithographic simulation of scattering. A design layout comprising a layout polygon is received. A skeleton representation of a mask shape that is created responsive to e-beam writing of the layout polygon is generated. The skeleton representation is defined by a plurality of skeleton points. Individual scattering patterns for the skeleton points are selected from a lookup table of pre-determined scattering patterns. Each of the individual scattering patterns representing an amount of optical scattering for a corresponding one of the skeleton points. A simulated wafer image is produced responsive to the individual scattering patterns.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 3, 2015
    Assignee: Synopsys, Inc.
    Inventors: Zhijie Deng, Qiliang Yan, James P. Shiely
  • Patent number: 8951676
    Abstract: An electrolyte for use in electrochemical cells is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg+2. The use of the electrolyte promotes the electrochemical deposition and dissolution of Mg without the use of any Grignard reagents, other organometallic materials, tetraphenyl borate, or tetrachloroaluminate derived anions. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 10, 2015
    Assignee: Pellion Technologies, Inc.
    Inventors: Robert Ellis Doe, George Hamilton Lane, Robert E. Jilek, Jaehee Hwang
  • Patent number: 8916298
    Abstract: Disclosed is a nonaqueous electrolytic solution which enables formation of a nonaqueous-electrolyte battery having high capacity and excellent storage characteristics at high temperatures, while sufficiently enhancing safety at the time of overcharge. A nonaqueous-electrolyte battery produced by using the nonaqueous electrolytic solution is also disclosed. The nonaqueous electrolytic solution comprises an electrolyte and a nonaqueous solvent, and includes any of specific nonaqueous electrolytic solutions (A) to (D).
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: December 23, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yumiko Nakagawa, Minoru Kotato, Daisuke Noda, Shinichi Kinoshita
  • Patent number: 8846254
    Abstract: Disclosed is a nonaqueous electrolytic solution which enables formation of a nonaqueous-electrolyte battery having high capacity and excellent storage characteristics at high temperatures, while sufficiently enhancing safety at the time of overcharge. A nonaqueous-electrolyte battery produced by using the nonaqueous electrolytic solution is also disclosed. The nonaqueous electrolytic solution comprises an electrolyte and a nonaqueous solvent, and includes any of specific nonaqueous electrolytic solutions (A) to (D).
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: September 30, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yumiko Nakagawa, Minoru Kotato, Daisuke Noda, Shinichi Kinoshita
  • Patent number: 8795884
    Abstract: In the nonaqueous secondary battery of the present invention, a positive electrode mixture layer included in a positive electrode contains a lithium-containing complex oxide defined by the general formula LixM1yM2zM3vO2 (where, M1 represents at least one transition metal element selected from the group consisting of Co, Ni and Mn, M2 represents at least one metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, M3 represents an element other than Li, M1 and M2, 0.97?x<1.02, 0.8?y<1.02, 0.002?z?0.05, and 0?v?0.05) and has a density of 3.5 g/cm3 or more. A nonaqueous electrolyte contains a fluorinated nitrile compound including two or more cyano groups or a cyano group and an ester group.
    Type: Grant
    Filed: April 30, 2009
    Date of Patent: August 5, 2014
    Assignees: Hitachi Maxell, Ltd., Kanto Denka Kogyo Co., Ltd.
    Inventors: Hideo Sakata, Fusaji Kita, Kumiko Ishizuka, Akiko Kuwabara, Yuan Gao
  • Patent number: 8741480
    Abstract: The non-aqueous secondary battery of the present invention comprises a positive electrode containing a lithium-containing composite oxide as an active material, a negative electrode, a separator, and a non-aqueous electrolyte. The non-aqueous electrolyte contains polyvalent organic lithium salt, and the content of the polyvalent organic lithium salt is 0.001 parts by mass or more and 1 part by mass or less with respect to 100 parts by mass of all of the components of the non-aqueous electrolyte other than the polyvalent organic lithium salt.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: June 3, 2014
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Akira Yano, Katsunori Kojima
  • 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: 8703329
    Abstract: A redox shuttle is provided to prevent overcharge of batteries and/or shuttle current in batteries including high voltage batteries, such as high voltage lithium ion (Li-ion) batteries. An exemplary redox shuttle includes a methylated closo-monocarborate anion.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 22, 2014
    Assignee: Enerdel, Inc.
    Inventors: Thomas Barbarich, Mary Patterson
  • Patent number: 8632919
    Abstract: Provided is a secondary battery electrolyte having improved high temperature properties and overcharge-prevention properties, particularly improved overcharge-prevention properties under high voltage/high current conditions, in conjunction with a minimized deterioration of the battery performance, by adding 3 to 5% by weight of cyclohexyl benzene (CHB) and 0.2 to 1.5% by weight of 2-fluoro biphenyl (2-FBP) as overcharge-preventing additives to an electrolyte of a lithium secondary battery.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: January 21, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Eun Ju Kang, Kyoung-won Kang, Hyang Mok Lee, Jung Kyu Woo
  • Publication number: 20140017571
    Abstract: Representative embodiments provide a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a supercapacitor. A representative liquid or gel separator comprises a plurality of particles, typically having a size (in any dimension) between about 0.5 to about 50 microns; a first, ionic liquid electrolyte; and a polymer. In another representative embodiment, the plurality of particles comprise diatoms, diatomaceous frustules, and/or diatomaceous fragments or remains. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the plurality of particles are comprised of silicate glass; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidalzolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”).
    Type: Application
    Filed: August 9, 2012
    Publication date: January 16, 2014
    Applicant: NTHDEGREE TECHNOLOGIES WORLDWIDE INC.
    Inventors: Vera Nicholaevna Lockett, Mark D. Lowenthal, Neil O. Shotton, William Johnstone Ray, Theodore I. Kamins
  • Patent number: 8597826
    Abstract: Disclosed is an electrolyte comprising: (a) an electrolyte salt; (b) a non-aqueous electrolyte solvent; and (c) a binary or multinary metal oxide salt. An electrochemical device comprising the same electrolyte is also disclosed. The metal oxide salt used in the electrolyte is dissolved in a non-aqueous solvent and generates oxyanions capable of improving corrosion resistance of metals. Therefore, the electrolyte prevents corrosion of metallic materials present in an electrochemical device, caused by extreme conditions, such as overcharge, overdischarge and high-temperature storage conditions, to which the device is exposed. Further, the electrolyte prevents degradation in the quality of an electrochemical device, caused by corrosion of metallic materials.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: December 3, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Ho Chun Lee, Hyeong Jin Kim
  • Patent number: 8597834
    Abstract: A nonaqueous electrolyte secondary battery including a negative electrode containing a graphite material as the negative active material, a positive electrode containing lithium cobalt oxide as a main component of the positive active material and a nonaqueous electrolyte solution, the battery being characterized in that the lithium cobalt oxide contains a group IVA element selected from the group consisting of Ti, Zr and Hf and a group IIA element of the periodic table, the nonaqueous electrolyte solution contains 0.2-1.5% by weight of a sulfonyl-containing compound and preferably further contains 0.5-4% by weight of vinylene carbonate.
    Type: Grant
    Filed: June 17, 2010
    Date of Patent: December 3, 2013
    Assignees: Ube Industries Ltd., Sanyo Electric Co., Ltd.
    Inventors: Koji Abe, Kazuhiro Miyoshi, Yasufumi Takahashi, Hiroyuki Fujimoto, Akira Kinoshita, Shingo Tode, Ikuro Nakane, Shin Fujitani
  • Publication number: 20130266847
    Abstract: The object of an exemplary embodiment of the invention is to provide a lithium secondary battery which has high energy density by containing a positive electrode active substance operating at a potential of 4.5 V or higher with respect to lithium and which has excellent cycle property. An exemplary embodiment of the invention is an lithium secondary battery, which comprises a positive electrode comprising a positive electrode active substance and an electrolyte liquid comprising a nonaqueous electrolyte solvent; wherein the positive electrode active substance operates at a potential of 4.5 V or higher with respect to lithium; and wherein the nonaqueous electrolyte solvent comprises a fluorine-containing phosphate represented by a prescribed formula.
    Type: Application
    Filed: December 7, 2011
    Publication date: October 10, 2013
    Applicants: NEC ENERGY DEVICES, LTD., NEC CORPORATION
    Inventors: Takehiro Noguchi, Hideaki Sasaki, Makiko Uehara, Ippei Waki, Shinako Kaneko, Hiroshi Hatakeyama, Shinsaku Saitho, Yuukou Katou
  • Publication number: 20130164602
    Abstract: An energy storage device including an active electrolyte, a first electrode and a second electrode is provided. The active electrolyte contains protons and ion pairs with a redox ability. The first electrode and the second electrode coexist in the active electrolyte and are separated from each other. The first electrode and the second electrode respectively include an active material producing a redox-reaction with the active electrolyte or an active material producing ion adsorption/desorption with the active electrolyte. The active electrolyte receives electrons from the first electrode and/or the second electrode so as to perform a redox-reaction for charge storage.
    Type: Application
    Filed: July 30, 2012
    Publication date: June 27, 2013
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Li-Duan Tsai, Chung-Hsiang Chao, Jenn-Yeu Hwang, Chun-Lung Li
  • Patent number: 8420266
    Abstract: A nonaqueous secondary battery comprising: a positive electrode; a negative electrode; and a nonaqueous electrolyte solution, wherein the nonaqueous electrolyte solution contains at least a cyclic nitrogen-containing compound represented by the general formula (1): wherein X represents an optionally branched divalent group derived from a chain saturated hydrocarbon and having 1 to 5 carbon atoms, ?C?CH2, ?C?O, ?C?S?O, ?O or ?S; and A1 and A2 may be the same or different and each represent an optionally substituted methylene group, ?C?O or ?SO2.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: April 16, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Hisayuki Utsumi
  • Patent number: 8404387
    Abstract: A nonaqueous electrolyte battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode contains active material particles and a coating material. The active material particles are represented by any one of the following formulae (1) to (3) and have an average particle diameter of 0.1 to 10 ?m. The coating material comprises at least particles having an average particle diameter of 60 nm or less or layers having an average thickness of 60 nm or less. The particles or the layers contain at least one element selected from the group consisting of Mg, Ti, Zr, Ba, B and C.
    Type: Grant
    Filed: July 8, 2008
    Date of Patent: March 26, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Norio Takami, Hiroki Inagaki, Keigo Hoshina
  • Patent number: 8343374
    Abstract: There is provided an electrolytic solution comprising a chain carbonate (I) represented by the formula (I): wherein Rf is a fluorine-containing ether group (Ia) having, at its end, a moiety represented by the formula: HCFX (X is H or F); R is an alkyl group in which hydrogen atom may be substituted with halogen atom and hetero atom may be contained in its chain, and an electrolyte salt (II), and the electrolytic solution is excellent in flame retardance, low temperature characteristics, withstand voltage and compatibility with a hydrocarbon solvent and is high in solubility of an electrolyte salt.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: January 1, 2013
    Assignee: Daikin Industries, Ltd.
    Inventors: Meiten Koh, Akiyoshi Yamauchi, Yasuko Takagahara
  • Patent number: 8329344
    Abstract: There is provided an electrolytic solution which has excellent flame retardance, low temperature characteristics and withstand voltage, high solubility of an electrolyte salt and excellent compatibility with hydrocarbon solvents, and comprises a chain carbonate (I) and an electrolyte salt (II), and the chain carbonate (I) is represented by the formula (I): wherein Rf1 is a fluorine-containing alkyl group having a fluorine content of 10 to 76% by mass and having, at its end, a moiety represented by the formula (Ia): (HCX1X2??(Ia) wherein X1 and X2 are the same or different and each is H or F; Rf2 is a fluorine-containing alkyl group having a fluorine content of 10 to 76% by mass and having, at its end, —CF3 or the moiety represented by the above-mentioned formula (Ia).
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: December 11, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Meiten Koh, Akiyoshi Yamauchi
  • Patent number: 8273483
    Abstract: A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt preferably lithium iodide (LiI) dissolved in an organic solvent mixture. The solvent mixture preferably comprises dioxolane, dimethoxyethane and sulfolane. The electrolyte typically contains between about 100 and 2000 parts by weight water per million parts by weight (ppm) electrolyte therein. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.
    Type: Grant
    Filed: February 14, 2008
    Date of Patent: September 25, 2012
    Assignee: The Gillette Company
    Inventors: Michael Pozin, Michael Sliger, Nikolai N. Issaev
  • Patent number: 8187739
    Abstract: To provide a power storage apparatus which can achieve improved heat radiation of a power storage unit, a power storage apparatus has a power storage unit including an electrode element placed with an electrolyte layer, and a case housing the power storage unit and a cooling fluid which is used for cooling the power storage unit and is in contact with at least the electrode element.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: May 29, 2012
    Assignee: Toyota Jidosha Kabushiki Kaihsa
    Inventor: Masaru Takagi
  • Patent number: 8119276
    Abstract: A lithium oxyhalide cell electrically connected in parallel with a lithium ion cell is described. Importantly, the open circuit voltage of the freshly built primary lithium oxyhalide cell is equal to or less that the open circuit voltage of the lithium ion cell in a fully charged state. This provides a power system that combines the high capacity of the primary cell with the high pulse power of the secondary cell. This hybrid power system exhibits increased rate capability, higher capacity and improved safety in addition to elimination of voltage delay in comparison to a comparable lithium oxyhalide cell discharge alone.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: February 21, 2012
    Assignee: Electrochem Solutions, Inc.
    Inventors: Arden P. Johnson, Konstantin Tikhonov, Douglas Woodnorth, Jon J. Carroll
  • Publication number: 20110311879
    Abstract: A nonaqueous electrolyte includes: a solvent; an electrolyte salt; an aromatic compound represented by the following formula (1); and a polyoxometalate and/or a polyoxometalate compound wherein each of R1 to R6 independently represents a hydrogen group, a halogen group, an aliphatic alkyl group, an alicyclic alkyl group, a phenyl group or an alkoxy group; at least one of R1 to R6 is a halogen group, an aliphatic alkyl group, an alicyclic alkyl group, a phenyl group or an alkoxy group; a part or all of hydrogens of R1 to R6 may be substituted with a halogen; and at least a part of R1 to R6 may be bonded to each other to form a ring.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 22, 2011
    Applicant: SONY CORPORATION
    Inventors: Ichiro Yamada, Shunsuke Saito, Haruo Watanabe, Tadahiko Kubota
  • Patent number: 8034491
    Abstract: An organic electrolytic solution is provided. The electrolytic solution comprises a lithium salt, an organic solvent comprising a first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant having a hydrophilic segment with two ends, each end being connected to a hydrophobic segment. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode of the lithium battery to thereby suppress a side reaction on the surface of the anode. This enhances charge/discharge efficiency, lifespan and reliability of the battery.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: October 11, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Eun-sung Lee, Jae-young Choi, Seok-soo Lee, Su-jin Kim
  • Publication number: 20110229769
    Abstract: A lithium secondary battery capable of obtaining superior cycle characteristics, superior storage characteristics and superior load characteristics is provided. The lithium secondary battery includes a cathode, an anode and an electrolytic solution. The electrolytic solution contains a nonaqueous solvent, a lithium ion, a nitrogen-containing organic anion having an imidazole skeleton, and an inorganic anion having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 22, 2011
    Applicant: SONY CORPORATION
    Inventors: Masayuki Ihara, Tadahiko Kubota
  • Publication number: 20110214895
    Abstract: A lithium secondary battery capable of obtaining superior cycle characteristics, superior storage characteristics, and superior load characteristics is provided. The lithium secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution contains a nonaqueous solvent, a lithium ion, at least one of nitrogen-containing organic anion having a Lewis acidic ligand, and at least one of inorganic anion having fluorine and an element of Group 13 to Group 15 in the long period periodic table as an element.
    Type: Application
    Filed: March 1, 2011
    Publication date: September 8, 2011
    Applicant: SONY CORPORATION
    Inventors: MASAYUKI IHARA, TADAHIKO KUBOTA
  • Publication number: 20110177398
    Abstract: Electrochemical cells including components and configurations for electrochemical cells, such as rechargeable lithium batteries, are provided. The electrochemical cells described herein may include a combination of components arranged in certain configurations that work together to increase performance of the electrochemical cell. In some embodiments, such combinations of components and configurations described herein may minimize defects, inefficiencies, or other drawbacks that might otherwise exist inherently in prior electrochemical cells, or that might exist inherently in prior electrochemical cells using the same or similar materials as those described herein, but arranged differently.
    Type: Application
    Filed: August 24, 2010
    Publication date: July 21, 2011
    Applicant: Sion Power Corporation
    Inventors: John D. Affinito, Yuriy V. Mikhaylik, Chariclea Scordilis-Kelley
  • Publication number: 20110143216
    Abstract: A lithium secondary battery includes a positive electrode containing a lithium transition-metal oxyanion compound as a positive electrode active material, a negative electrode containing amorphous carbon-coated graphite as a negative electrode active material, and a non-aqueous electrolyte solution, wherein the non-aqueous electrolyte solution contains vinylene carbonate and a solvent and/or a solute that decomposes at a potential more electropositive than that of vinylene carbonate.
    Type: Application
    Filed: December 7, 2010
    Publication date: June 16, 2011
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Toshikazu Yoshida, Hidekazu Yamamoto
  • Publication number: 20110143215
    Abstract: Provided is a nonaqueous electrolyte secondary battery that is less likely to cause positive electrode degradation due to storage at high temperature in a charged state and has superior remaining capacity, recovering capacity, and discharge characteristics after storage at high temperature. The nonaqueous electrolyte secondary battery according to an aspect of the invention includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The nonaqueous electrolyte contains at least LiPF6. The nonaqueous electrolyte also contains a dinitrile compound represented by Chemical Formula NC—R—CN (where R is a saturated straight chain hydrocarbon group) and magnesium hydroxide. The number of carbon atoms of the saturated straight chain hydrocarbon group R in the dinitrile compound is preferably 5 to 10.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 16, 2011
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventor: Kazushi Andou
  • Patent number: 7960060
    Abstract: The invention relates to an ion-conducting material containing an oligoether sulfate. The material comprises an ionic compound dissolved in a solvating polymer. The ionic compound is a mixture of a lithium bis(trifluoromethanesulfonyl)imide and of at least one lithium oligoether sulfate chosen from the lithium oligoether monosulfates corresponding to the formula R—[O—CH2—CH2)]n—O—SO3?Li+(I) in which R is a group CmH2m+1 with 1?m?4 and 2?n?17, and the lithium oligoether disulfates corresponding to the formula Li+O?SO2—O—CH2—[CH2—O—CH2]p—CH2—O—SO2—O?Li+(II) in which 3?p?45; the overall ratio Ot/Lit is less than or equal to 40, Ot representing the total number of O atoms provided by the solvating polymer and by the oligoether; the content of LiTFSI is such that the Ot/LiTFSI ratio is greater than or equal to 20.
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: June 14, 2011
    Assignee: Batscap
    Inventors: Jean-Yves Sanchez, Christophe Chauvin, Fannie Alloin, Marc Deschamps
  • Publication number: 20110123869
    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: Application
    Filed: August 20, 2010
    Publication date: May 26, 2011
    Applicant: SAMSUNG SDI Co., Ltd.
    Inventors: Nam-Soon Choi, Irina Profatilova, Sung-Soo Kim, Eui-Hwan Song, Young-Mi Park
  • Patent number: 7927744
    Abstract: A battery with a high capacity and superior cycle characteristics and an anode active material used in the battery are provided. An anode includes an anode active material capable of reacting with lithium. The anode active material includes at least tin, cobalt and carbon as elements, and the carbon content is within a range from 9.9 wt % to 29.7 wt % inclusive, and the ratio of cobalt to the total of tin and cobalt is within a range from 30 wt % to 70 wt % inclusive. Thereby, while a high capacity is maintained, cycle characteristics can be improved.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: April 19, 2011
    Assignee: Sony Corporation
    Inventors: Satoshi Mizutani, Hiroshi Inoue, Akira Yamaguchi, Akinori Kita
  • Publication number: 20110070504
    Abstract: This invention relates to a highly safe secondary battery. In the secondary battery of this invention, a positive electrode is formed of an oxide which adsorbs/desorbs lithium ions; a negative electrode is formed of a carbon material which adsorbs/desorbs lithium ions; and an electrolyte solution is formed of an ion liquid and a phosphoric acid ester derivative. Consequently, the secondary battery can be highly safe. Since a phosphate ester and an ion liquid are contained at the same time, high discharge capacity can be maintained even when the phosphate ester is used at a high concentration.
    Type: Application
    Filed: May 14, 2009
    Publication date: March 24, 2011
    Applicants: NEC CORPORATION, NEC ENERGY DEVICES, LTD.
    Inventors: Kazuaki Matsumoto, Kentaro Nakahara, Shigeyuki Iwasa, Hitoshi Ishikawa, Shinako Kaneko, Koji Utsugi
  • Publication number: 20110008680
    Abstract: An organic electrolyte solvent includes a compound of the formula: R1—SO2—NR2—OR3 wherein R1 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives and perfluorinated analogues; R2 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives; R3 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives wherein the electrolyte solvent is stable at voltages of greater than 4.0 volts.
    Type: Application
    Filed: June 24, 2010
    Publication date: January 13, 2011
    Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Synthonix Corporation
    Inventors: John Muldoon, Gary Allred, Anthony Dotse
  • Publication number: 20100273065
    Abstract: A non-aqueous electrolyte solution for a lithium ion secondary battery includes a lithium salt and an organic solvent. The organic solvent includes a carbonate compound, a linear ester compound and a linear ester decomposition inhibitor. This non-aqueous electrolyte solution restrains swelling while improving low temperature charging/discharging characteristics of the secondary battery in comparison to a conventional electrolyte since it contains the linear ester compound and the linear ester decomposition inhibitor. The non-aqueous electrolyte solution may be used in making a lithium ion secondary battery.
    Type: Application
    Filed: June 5, 2009
    Publication date: October 28, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Ho-Chun Lee, Jong-Ho Jeon, Jeong-Ju Cho
  • Publication number: 20100203370
    Abstract: A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt preferably lithium iodide (LiI) dissolved in an organic solvent mixture. The solvent mixture preferably comprises dioxolane and dimethoxyethane. The electrolyte typically contains between about 100 and 2000 parts by weight water per million parts by weight (ppm) electrolyte therein. The anode may be lithium metal or preferably is a lithium alloy. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.
    Type: Application
    Filed: February 12, 2009
    Publication date: August 12, 2010
    Inventors: Michael Pozin, Nikolai N. Issaev
  • Publication number: 20100178569
    Abstract: An electrolyte includes a solvent and an electrolyte salt. The solvent contains at least one selected from ester compounds, lithium monofluorophosphate, and lithium difluorophosphate, and at least one selected from anhydrous compounds. The ester compounds are chain compounds having ester moieties, such as (—O—C(?O)—O—R), at both ends. The anhydrous compounds are cyclic compounds having, for example, a disulfonic anhydride group, (—S(O?)2—O—S(O?)2—).
    Type: Application
    Filed: January 8, 2010
    Publication date: July 15, 2010
    Applicant: SONY CORPORATION
    Inventors: Masayuki Ihara, Shinya Wakita, Tadahiko Kubota
  • Patent number: 7754389
    Abstract: An electrolyte solution and a battery which are capable of improving cycle characteristics are provided. An anode includes a simple substance, an alloy or a compound of a metal element or a metalloid element capable of forming an alloy with lithium as an anode active material. A separator is impregnated with an electrolyte solution formed through dissolving an electrolyte salt in a solvent. The electrolyte salt includes a first electrolyte salt including LiB(C2O4)2 and a second electrolyte salt including at least one kind selected from the group consisting of LiPF6, LiBF4, LiN(CF3SO2)2, LiN(C2F5SO2)2, LiClO4, LiAsF6 and LiC(CF3SO2)3. In the solvent, 4-fluoroethylene carbonate is included. A coating is formed on the anode by the first electrolyte salt, and high ionic conductivity can be obtained by the second electrolyte salt. Further an oxidation-decomposition reaction of the electrolyte solution which occurs in a cathode can be prevented by 4-fluoroethylene carbonate.
    Type: Grant
    Filed: February 1, 2005
    Date of Patent: July 13, 2010
    Assignee: Sony Corporation
    Inventors: Akira Yamaguchi, Kaoru Nakajima, Yusuke Fujishige, Yuzuru Fukushima, Masayuki Nagamine
  • Patent number: 7749660
    Abstract: Provided is a battery electrolyte comprising an electrolyte salt, an electrolyte solvent and a compound producing chemical reaction products with the exception of water through a chemical reaction with an acid (H+), and a secondary battery comprising the same. The battery electrolyte according to the present invention can achieve improved high-temperature storage characteristics and the life characteristics of the battery, by using a compound decreasing a concentration of HX (X=F, Cl, Br or I) through a chemical reaction with HX (X=F, Cl, Br or I) which is present in the battery and therefore causes deterioration of the battery performance.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: July 6, 2010
    Assignee: LG Chem, Ltd.
    Inventors: Yun-Ho Lee, Seungdon Choi, Changjoo Han, Jonghwan Kim, Jisang Yu
  • Publication number: 20100068629
    Abstract: A galvanic cell is disclosed. Generally, the cell includes an alkali metal anode, which electrochemcially oxidizes to release alkali metal ions, and a cathode, which is configured to be exposed to an electrolyte solution. A water-impermeable, alkali-ion-conductive ceramic membrane separates the anode from the cathode. Moreover, an alkali-ion-permeable anode current collector is placed in electrical communication with the anode. In some cases, to keep the anode in contact with the current collector as the cell functions and as the anode is depleted, the cell includes a biasing member that urges the anode against the current collector. To produce electricity, the galvanic cell is exposed to an aqueous electrolyte solution, such as seawater, brine, saltwater, etc.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Inventor: John Howard Gordon
  • Patent number: 7630116
    Abstract: An ion conductor has fine particles of an organic polymer including 20 to 80% by mass of ultra-fine particles of an inorganic compound, and an electrolytic solution impregnated into the fine particles of the organic polymer, wherein the fine particles of the organic polymer have a specific surface area measured by the BET method of 30 m2/g or more.
    Type: Grant
    Filed: January 21, 2005
    Date of Patent: December 8, 2009
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Michiya Nakashima, Toshihiro Ebine, Kazunari Kawai, Naohito Saito
  • Patent number: 7482098
    Abstract: A secondary cell employs a nonaqueous electrolyte solution including a nonaqueous solvent and a salt, and a flame retardant material that is liquid at room temperature and pressure and substantially immiscible in the nonaqueous electrolyte solution. The nonaqueous electrolyte solution is formed by dissolving a salt, preferably an alkali metal salt, in a nonaqueous solvent. The nonaqueous solvent preferably includes a cyclic carbonate and/or a linear carbonate. The cyclic carbonate preferably contains an alkylene group with 2 to 5 carbon atoms, and the linear carbonate preferably contains a hydrocarbon group with 1 to 5 carbon atoms. Preferred salts include LiPF6 and LiBF4 at a concentration between about 0.1 and 3.0 moles/liter. The flame retardant material is preferably a halogen-containing compound in an amount by weight of nonaqueous solvent in a range of about 1 to about 99 wt %, and preferred halogen-containing compounds contain perfluoralkyl or perfluorether groups.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: January 27, 2009
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Tsuneaki Koike
  • Publication number: 20080176141
    Abstract: A flame retarding polymer electrolyte composition containing maleimides includes a modified maleimide; a lithium salt; and at least one ionic solution in a ratio of at least 2 wt % relative to the total weight of the composition. By using the hyperbranched dendrimer-like structure of the modified maleimide as grafted skeleton for polymer electrolytes, the electrolyte composition can encapsulate an electrolytic solution continuously, thus preventing the exudation of the electrolytic solution and increasing the stability of lithium ionic conduction. Since the ionic solution is nonflammable, the safety of batteries are further enhanced when the polymer electrolyte composition is used as polymer electrolyte for a lithium secondary battery.
    Type: Application
    Filed: August 16, 2007
    Publication date: July 24, 2008
    Inventors: Jing-Pin Pan, Chang-Rung Yang, Fu-Ming Wang, Jung-Mu Hsu, Yueh-Wei Lin