Nitrogen Is Ring Member Of The Hetero Ring Patents (Class 429/328)
  • Patent number: 10535902
    Abstract: Articles and methods including layers for protection of electrodes in electrochemical cells are provided. As described herein, a layer, such as a protective layer for an electrode, may comprise a plurality of particles (e.g., crystalline inorganic particles, amorphous inorganic particles). In some embodiments, at least a portion of the plurality of particles (e.g., inorganic particles) are fused to one another. For instance, in some embodiments, the layer may be formed by aerosol deposition or another suitable process that involves subjecting the particles to a relatively high velocity such that fusion of particles occurs during deposition. In some embodiments, the layer (e.g., the layer comprising a plurality of particles) is an ion-conducting layer.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: January 14, 2020
    Assignees: Sion Power Corporation, BASF SE
    Inventors: Michael G. Laramie, Yuriy V. Mikhaylik, Hui Du, Joern Kulisch, Marina Safont-Sempere, Klaus Leitner, Holger Schneider
  • Patent number: 10461372
    Abstract: Articles and methods including layers for protection of electrodes in electrochemical cells are provided. As described herein, a layer, such as a protective layer for an electrode, may comprise a plurality of particles (e.g., crystalline inorganic particles, amorphous inorganic particles). In some embodiments, at least a portion of the plurality of particles (e.g., inorganic particles) are fused to one another. For instance, in some embodiments, the layer may be formed by aerosol deposition or another suitable process that involves subjecting the particles to a relatively high velocity such that fusion of particles occurs during deposition. In some embodiments, the layer (e.g., the layer comprising a plurality of particles) is an ion-conducting layer.
    Type: Grant
    Filed: May 20, 2016
    Date of Patent: October 29, 2019
    Assignees: Sion Power Corporation, BASF SE
    Inventors: Michael G. Laramie, Yuriy V. Mikhaylik, Hui Du, Joern Kulisch, Marina Safont-Sempere, Klaus Leitner, Holger Schneider
  • Patent number: 10424814
    Abstract: Electrolytes, anodes, lithium ion cells and methods are provided for preventing lithium metallization in lithium ion batteries to enhance their safety. Electrolytes comprise up to 20% ionic liquid additives which form a mobile solid electrolyte interface during charging of the cell and prevent lithium metallization and electrolyte decomposition on the anode while maintaining the lithium ion mobility at a level which enables fast charging of the batteries. Anodes are typically metalloid-based, for example include silicon, germanium, tin and/or aluminum. A surface layer on the anode bonds, at least some of the ionic liquid additive to form an immobilized layer that provides further protection at the interface between the anode and the electrolyte, prevents metallization of lithium on the former and decomposition of the latter.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: September 24, 2019
    Assignee: Storedot Ltd.
    Inventors: Doron Burshtain, Nir Kedem, Daniel Aronov
  • Patent number: 9954261
    Abstract: According to one embodiment, an air battery includes a case, a positive electrode, a negative electrode, a first nonaqueous electrolyte, a second nonaqueous electrolyte, a solid electrolyte layer and a hole. The first nonaqueous electrolyte is permeated into the positive electrode and includes an ionic liquid. The second nonaqueous electrolyte is permeated into the negative electrode and includes an organic solvent. The solid electrolyte layer is provided between the positive electrode and the negative electrode and has lithium ion conductivity.
    Type: Grant
    Filed: April 25, 2012
    Date of Patent: April 24, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takashi Kuboki, Norio Takami
  • Patent number: 9876254
    Abstract: A non-aqueous liquid electrolyte for a secondary battery, containing, in an aprotic solvent: an electrolyte; a particular nitrile compound; and a flame retardant composed of a particular phosphate compound or a phosphazene compound, in which the nitrile compound is contained in an amount of 0.1 parts by mass to 10 parts by mass with respect to 100 parts by mass of the flame retardant.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: January 23, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Toshihiko Yawata, Ikuo Kinoshita
  • Patent number: 9825334
    Abstract: Disclosed is a rechargeable lithium battery including a positive electrode; a negative electrode including a negative active material, the negative active material including a silicon-based material; and an electrolyte solution including a lithium salt, a non-aqueous organic solvent, and an additive. The additive includes an ethylene carbonate-based compound represented by Chemical Formula 1 and a pyridine-based compound represented by Chemical Formula 2: R11, R12 and R1 to R5 are each independently hydrogen, a halogen, a substituted or unsubstituted C1 to C20 alkyl group, or a C1 to C20 haloalkyl group; at least one of R11 and R12 is a halogen; and at least one of R1 to R5 is a halogen.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yun-Hee Kim, Ho-Seok Yang, Jin-Hyeok Lim, Hee-Yeon Hwang, Hyun-Woo Kim
  • Patent number: 9728810
    Abstract: An electrolyte contains a non-aqueous solvent, a lithium salt, and a fluorine-containing ether compound represented by the following Formula (I). In the following formula, R1 represents an alkyl group having 3 to 8 carbon atoms; R2 represents an alkyl group having 1 carbon atom; at least 6 carbon atoms among carbon atoms bonded to the alkyl group represented by R1 are substituted with fluorine atoms; and at least one hydrogen atom among hydrogen atoms bonded to the alkyl group represented by R2 is substituted with a fluorine atom.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: August 8, 2017
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Masaru Heishi, Takuya Toyokawa
  • Patent number: 9647298
    Abstract: A nonaqueous electrolyte battery is provided. The nonaqueous electrolyte battery includes an anode; a cathode; a separator; an electrolytic solution including a solvent and an electrolyte salt; wherein the solvent includes a fluoro ethylene carbonate, wherein the nonaqueous electrolyte battery has a discharge capacity ratio of a discharge capacity B when discharging at a 5 C rate to a discharge capacity A when discharging at a 0.2 C rate ((B/A)×100%), and wherein the discharge capacity ratio is 80% or more. An electrical apparatus including a nonaqueous electrolyte battery is also provided.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: May 9, 2017
    Assignee: Sony Corporation
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Patent number: 9337513
    Abstract: A non-aqueous electrolyte secondary battery which is one example of an embodiment of the present disclosure is a non-aqueous electrolyte secondary battery including a non-aqueous electrolyte which contains a non-aqueous solvent. The non-aqueous solvent contains a fluoroethylene carbonate, a difluorobutylene carbonate, and at least one of a fluorinated chain carbonate and a fluorinated chain carboxylic acid ester, total volumetric contents of which is more than 50 percent with respect to the total volume of the non-aqueous solvent.
    Type: Grant
    Filed: October 12, 2014
    Date of Patent: May 10, 2016
    Assignee: Panasonic Corporation
    Inventors: Takanobu Chiga, Takashi Takeuchi
  • Patent number: 9214659
    Abstract: The invention relates to a separator filled with an electrolyte composition. The separator has a ceramic surface and the electrolyte composition comprises an ionic fluid. Filling with the electrolyte composition can take place, for example, by inserting the separator into a battery, e.g. into a lithium ion battery, which is filled with a corresponding electrolyte composition.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: December 15, 2015
    Assignee: EVONIK DEGUSSA GmbH
    Inventors: Gerhard Hörpel, Volker Hennige, Christian Hying, Sven Augustin, Carsten Jost
  • Patent number: 9190695
    Abstract: The present invention provides a non-aqueous electrolytic solution including a methylenebissulfonate derivative and improving initial irreversible capacity and other characteristics of a battery such as cycle characteristics, electric capacity, and storage characteristics; a method for producing thereof; and a battery using the electrolytic solution. The non-aqueous electrolytic solution includes: (1) a non-aqueous solvent comprising a cyclic carbonate ester, a straight chained carbonate ester, and/or a cyclic carboxylic acid ester, (2) a lithium salt which may be dissolved in the non-aqueous solvent, as an electrolyte salt, and (3) a methylenebissulfonate derivative of formula [I]: The method includes steps of dissolving a lithium salt in a non-aqueous solvent, and then dissolving the methylenebissulfonate derivative. The non-aqueous electrolytic solution battery includes (i) the non-aqueous electrolytic solution above, (ii) a negative electrode, (iii) a positive electrode, and (iv) a separator.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: November 17, 2015
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Kuniaki Okamoto, Motoshige Sumino, Tsutomu Watahiki, Kouki Ohkubo, Tatsuko Ikeda
  • Patent number: 9166254
    Abstract: The application relates to a gel polymer electrolyte and/or polymer modified electrode materials for lithium batteries.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: October 20, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Li-Duan Tsai, Chih-Ching Chang, Chia-Chen Fang, Wei-Hsin Wu, Chun-Lung Li, Yueh-Wei Lin
  • Patent number: 9006457
    Abstract: The invention relates to reactive ionic liquids containing organic cations with groups or substituents which are susceptible to electrochemical reduction and anions obtained from fluoroalkyl phosphates, fluoroalkyl phosphinates, fluoroalkyl phosphonates, acetates, triflates, imides, methides, borates, phosphates and/or aluminates, for use in electrochemical cells, such as lithium ion batteries and double-layer capacitors.
    Type: Grant
    Filed: March 31, 2009
    Date of Patent: April 14, 2015
    Assignee: BASF SE
    Inventors: Michael Schmidt, Nikolai (Mykola) Ignatyev, William-Robert Pitner
  • Publication number: 20150084604
    Abstract: An improved lithium-sulfur battery containing a surface-functionalized carbonaceous material. The presence of the surface-functionalized carbonaceous material generates weak chemical bonds between the functional groups of the surface-functionalized carbonaceous material and the functional groups of the polysulfides, which prevents the polysulfide migration to the battery anode, thereby providing a battery with relatively high energy density and good partial discharge efficiency.
    Type: Application
    Filed: September 26, 2013
    Publication date: March 26, 2015
    Applicant: EAGLEPICHER TECHNOLOGIES, LLC
    Inventors: Ramanathan THILLAIYAN, Wujun FU, Mario DESTEPHEN, Greg MILLER, Ernest NDZEBET, Umamaheswari JANAKIRAMAN
  • Patent number: 8951664
    Abstract: An ionic liquid having high electrochemical stability and a low melting point. An ionic liquid represented by the following general formula (G0) is provided. In the general formula (G0), R0 to R5 are individually any of an alkyl group having 1 to 20 carbon atoms, a methoxy group, a methoxymethyl group, a methoxyethyl group, and a hydrogen atom, and A? is a univalent imide-based anion, a univalent methide-based anion, a perfluoroalkyl sulfonic acid anion, tetrafluoroborate, or hexafluorophosphate.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: February 10, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kyosuke Ito, Toru Itakura
  • Publication number: 20140377644
    Abstract: A nonaqueous solvent that includes an ionic liquid and has at least one of the following characteristics: high lithium ion conductivity, high lithium ion conductivity in a low temperature environment, high heat resistance, a wide available temperature range, a low freezing point (melting point), low viscosity, and the like. The nonaqueous solvent includes an ionic liquid and a fluorinated solvent. The ionic liquid contains an alicyclic quaternary ammonium cation which has a substituent and a counter anion to the alicyclic quaternary ammonium cation which has the substituent.
    Type: Application
    Filed: June 17, 2014
    Publication date: December 25, 2014
    Inventors: Jun ISHIKAWA, I, Rie YOKOI, Satoshi SEO, Toru ITAKURA, Sachiko KAWAKAMI, Kaori OGITA
  • 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
  • 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
  • Publication number: 20140315096
    Abstract: In some embodiments, the present disclosure pertains to energy storage compositions that comprise a clay and an ionic liquid. In some embodiments, the clay is a bentonite clay and the ionic liquid is a room temperature ionic liquid (RTIL). In some embodiments, the clay and the ionic liquid are present in the energy storage compositions of the present disclosure in a weight ratio of 1:1. In some embodiments, the ionic liquid further comprises a lithium-containing salt that is dissolved in the ionic liquid. In some embodiments, the energy storage compositions of the present disclosure further comprise a thermoplastic polymer, such as polyurethane. In some embodiments, the thermoplastic polymer constitutes about 10% by weight of the energy storage composition. In some embodiments, the energy storage compositions of the present disclosure are associated with components of energy storage devices, such as electrodes and separators.
    Type: Application
    Filed: February 26, 2014
    Publication date: October 23, 2014
    Applicants: Universidade Federal de Minas Gerais, William Marsh Rice University
    Inventors: Raquel Silveira Borges, Kaushik Kalaga, Marco Tulio Fonseca Rodrigues, Hemtej Gullapalli, Leela Mohana Reddy Arava, Kaushik Balakrishnan, Glaura Goulart Silva, Pulickel M. Ajayan
  • Patent number: 8865353
    Abstract: A nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, containing a hydantoin compound represented by the following general formula (I) in an amount of from 0.01 to 5% by mass of the nonaqueous electrolytic solution, and excellent in battery characteristics such as high-temperature storage property and cycle property. (In the formula, R1 and R2 each represent a methyl group or an ethyl group; R3 and R4 each represent a hydrogen atom, a methyl group or an ethyl group.
    Type: Grant
    Filed: August 4, 2009
    Date of Patent: October 21, 2014
    Assignee: Ube Industries, Ltd.
    Inventors: Koji Abe, Masahide Kondo
  • 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: 8828580
    Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety of electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: September 9, 2014
    Assignee: PolyPlus Battery Company
    Inventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
  • Patent number: 8808404
    Abstract: A method for making a lithium battery or lithium ion battery having nitrogen silylated compounds as additives in a nonaqueous electrolytic solution. Batteries using this electrolytic solution have long cycle life and high capacity retention.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: August 19, 2014
    Assignee: BASF Corporation
    Inventors: Wu Xu, Deng Zhongyi, Bolomey Pascal
  • Publication number: 20140220417
    Abstract: The present invention provides an electrolyte for lithium and/or lithium-ion batteries comprising a lithium salt in a liquid carrier comprising heteroaromatic compound including a five-membered or six-membered heteroaromatic ring moiety selected from the group consisting of a furan, a pyrazine, a triazine, a pyrrole, and a thiophene, the heteroaromatic ring moiety bearing least one carboxylic ester or carboxylic anhydride substituent bound to at least one carbon atom of the heteroaromatic ring. Preferred heteroaromatic ring moieties include pyridine compounds, pyrazine compounds, pyrrole compounds, furan compounds, and thiophene compounds.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 7, 2014
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Gang CHENG, Daniel P. ABRAHAM
  • 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: 8785055
    Abstract: Novel electric battery systems are disclosed utilizing selected ionic liquids as electrolytes and selected metals and metal oxides as electrodes. The ionic liquids utilize a substituted imidazolium cation, which does not have the corrosive safety and environmental concerns associated with corrosive acid and alkali electrolytes.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: July 22, 2014
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventor: Thomas E. Sutto
  • Publication number: 20140113202
    Abstract: The invention is directed in a first aspect to an ionic liquid of the general formula Y+Z?, wherein Y+ is a positively-charged component of the ionic liquid and Z? is a negatively-charged component of the ionic liquid, wherein Z? is a boron-containing anion of the following formula: The invention is also directed to electrolyte compositions in which the boron-containing ionic liquid Y+Z? is incorporated into a lithium ion battery electrolyte, with or without admixture with another ionic liquid Y+X? and/or non-ionic solvent and/or non-ionic solvent additive.
    Type: Application
    Filed: October 22, 2012
    Publication date: April 24, 2014
    Applicant: UT-BATTELLE, LLC
    Inventors: Xiao-Guang Sun, Sheng Dai, Chen Liao
  • Publication number: 20140099557
    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: Application
    Filed: March 14, 2013
    Publication date: April 10, 2014
    Applicant: PELLION TECHNOLOGIES, INC.
    Inventors: Robert Ellis Doe, George Hamilton Lane, Robert E. Jilek, Jaehee Hwang
  • Patent number: 8679683
    Abstract: An electrolytic solution capable of improving battery characteristics even at high temperature, and a battery using the electrolytic solution are provided. A separator is impregnated with an electrolytic solution. The electrolytic solution includes a cyclic imide salt such as 1,1,2,2,3,3-hexafluoropropane-1,3-disulfonimide lithium and a light metal salt such as difluoro[oxalato-O,O?] lithium borate or bis[oxalato-O,O?] lithium borate. Thereby, the decomposition reaction of the electrolytic solution can be prevented even at high temperature, and the battery characteristics can be improved.
    Type: Grant
    Filed: March 12, 2007
    Date of Patent: March 25, 2014
    Assignee: Sony Corporation
    Inventors: Akira Yamaguchi, Atsumichi Kawashima, Masayuki Ihara, Hiroshi Horiuchi, Hiroyuki Yamaguchi, Tadahiko Kubota, Kumiko Takagi
  • Publication number: 20140080007
    Abstract: The present application provides a nonaqueous electrolyte secondary battery that includes, a cathode capable of being electrochemically doped/dedoped with lithium, an anode capable of being electrochemically doped/dedoped with lithium, and an electrolyte placed between the cathode and the anode, wherein the electrolyte contains at least one of fluoro ethylene carbonate represented by Chemical Formula (1) and difluoro ethylene carbonate represented by Chemical Formula (2) as a solvent and the ratio of a discharge capacity B during discharging at a 5C rate to a discharge capacity A during discharging at a 0.2C rate ((B/A)×100) is 80% or more.
    Type: Application
    Filed: November 19, 2013
    Publication date: March 20, 2014
    Applicant: Sony Corporation
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • 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: 8628885
    Abstract: A secondary battery capable of improving battery characteristics is provided. The secondary battery includes a cathode 21 containing a cathode active material capable of inserting and extracting an electrode reactant, an anode 22 containing an anode active material capable of inserting and extracting the electrode reactant, and an electrolyte containing a solvent and an electrolyte salt. At least one of the cathode 21, the anode 22, and the electrolyte contains a radical scavenger compound. The radical scavenger compound is a compound in which a group having a radical scavenger function exists as a matrix, to which one or more carboxylic metal bases or one or more sulfonic metal bases are introduced. Chemical stability of the cathode 21, the anode 22, or the electrolyte containing the radical scavenger compound is improved. Thus, at the time of charge and discharge, decomposition reaction of the electrolytic solution is easily inhibited.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: January 14, 2014
    Assignee: Sony Corporation
    Inventors: Hiroyuki Yamaguchi, Shunsuke Saito, Toru Odani, Masayuki Ihara, Tadahiko Kubota
  • Patent number: 8623558
    Abstract: A non-aqueous electrolyte in which the proportion of diethyl carbonate is reduced, and a nonaqueous electrolyte secondary battery using the same that has high safety are provided. The non-aqueous electrolyte of the invention for use in secondary batteries includes ethylene carbonate, propylene carbonate, diethyl carbonate, and an additive, as a non-aqueous solvent. The additive is at least one of a fluorinated aromatic compound having a molecular weight of 90 to 200 and a fatty acid alkyl ester having a molecular weight of 80 to 240. A weight ratio WEC ethylene carbonate, a weight ratio WPC of propylene carbonate, a weight ratio W DEC of diethyl carbonate, and a weight ratio WLV of the additive are 5 to 30 wt %, 15 to 60 wt %, 10 to 50 wt %, and 5 to 35 wt %, respectively, to the total of the non-aqueous electrolyte.
    Type: Grant
    Filed: March 15, 2011
    Date of Patent: January 7, 2014
    Assignee: Panasonic Corporation
    Inventor: Masaki Deguchi
  • Publication number: 20130344399
    Abstract: Novel electric battery systems are disclosed utilizing selected ionic liquids as electrolytes and selected metals and metal oxides as electrodes. The ionic liquids utilize a substituted imidazolium cation, which does not have the corrosive safety and environmental concerns associated with corrosive acid and alkali electrolytes.
    Type: Application
    Filed: September 7, 2010
    Publication date: December 26, 2013
    Applicants: Chief of Naval Research, Office of Counsel
    Inventor: Thomas E. Sutto
  • Publication number: 20130323571
    Abstract: The present invention provides a lithium-ion electrochemical cell comprising an ionic liquid electrolyte solution and a positive electrode having a carbon sheet current collector.
    Type: Application
    Filed: May 13, 2013
    Publication date: December 5, 2013
    Inventors: Hongli Dai, Michael Erickson, Marc Juzkow
  • Publication number: 20130302699
    Abstract: A non-aqueous electro-chemical battery and a method of preparation thereof, wherein the electro-chemical battery comprises an anode current collector, a cathode, electrolyte solution and a separator, wherein the anode current collector contains anode coating and the anode current collector as a whole acts as an anode; both the anode current collector and the cathode are provided with tabs; the cathode is made of lithium metal or lithium-aluminum alloy; ratio of capacity of the anode per unit area to capacity of the cathode per unit area is less than 1.0; ratio of theoretical total capacity of the anode to the theoretical total capacity of the cathode is greater than 1.0. According to the method of preparing the battery, when the anode, the cathode and the separator are placed one over another, a front end of the anode and a front end of the cathode is placed in staggered positions.
    Type: Application
    Filed: September 8, 2011
    Publication date: November 14, 2013
    Inventors: Xianwen He, Zhongfen Lao, Wenshuo Pan
  • Patent number: 8580440
    Abstract: Disclosed are an additive for improving charge/discharge characteristics of a lithium-ion cell, a nonaqueous electrolytic solution containing the additive, and a lithium-ion cell using the additive and/or the nonaqueous electrolytic solution. The additive serves as a solvent for a fluorine resin, such as poly(vinylidene fluoride), which is incorporated as an adhesive in a positive electrode containing a lithium-transition metal oxide capable of absorbing and releasing lithium and a negative electrode containing a carbon material capable of absorbing and releasing lithium. The additive comprises three compounds selected, respectively, from a 2-pyrrolidinone compound group, a cyclic alkyl compound group, and a cyclic pentanone compound group.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: November 12, 2013
    Assignee: Japan Aerospace Exploration Agency
    Inventors: Xianming Wang, Yoshitsugu Sone, Kenichi Kuwajima
  • Publication number: 20130252112
    Abstract: A rechargable magnesium battery having an non-aqueous electrolyte 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: Application
    Filed: March 14, 2013
    Publication date: September 26, 2013
    Applicant: PELLION TECHNOLOGIES, INC.
    Inventors: Robert Ellis Doe, George Hamilton Lane, Robert E. Jilek, Jaehee Hwang
  • Patent number: 8524401
    Abstract: An electrolyte for a lithium battery and a lithium battery including the electrolyte.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: September 3, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yong-Beom Lee, Sun-Young Kim, Bo-Ra Lee, Sin-Young Park
  • Patent number: 8524400
    Abstract: Disclosed is an electrolyte for a secondary battery comprising an electrolyte salt and an electrolyte solvent, the electrolyte comprising both a lactam-based compound and a sulfinyl group-containing compound. Also, disclosed is an electrode having a solid electrolyte interface (SEI) film partially or totally formed on a surface thereof, the SEI film being formed by electrical reduction of the above compounds. Further, a secondary battery comprising the electrolyte and/or the electrode is disclosed.
    Type: Grant
    Filed: October 9, 2007
    Date of Patent: September 3, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Ho-Chun Lee, Jeong-Ju Cho
  • Publication number: 20130137001
    Abstract: A lithium/oxygen battery includes a lithium anode, an air cathode, and a non-aqueous electrolyte soaked in a microporous separator membrane, wherein non-aqueous electrolyte comprises a lithium salt with a general molecular formula of LiBF3X (X?F, Cl, or Br, respectively) and a non-aqueous solvent mixture.
    Type: Application
    Filed: November 28, 2011
    Publication date: May 30, 2013
    Applicant: U.S Government as represented by the Secretary of the Army
    Inventors: Shengshui Zhang, Donald L. Foster, Jeffrey A. Read
  • 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
  • Publication number: 20130089792
    Abstract: An electrochemical cell is described. The electrochemical cell includes an anode, a cathode, a separator between said anode and said cathode, and an electrolyte. The electrolyte includes a salt dissolved in an organic solvent. The separator in combination with the electrolyte has an area specific resistance less than 2 ohm-cm2. The electrochemical cell has an interfacial anode to cathode ratio of less than about 1.1.
    Type: Application
    Filed: November 30, 2012
    Publication date: April 11, 2013
    Applicant: THE GILLETTE COMPANY
    Inventor: THE GILLETTE COMPANY
  • Publication number: 20130071758
    Abstract: The nonaqueous electrolyte for an electrochemical device of the present invention includes at least one selected from an imide compound represented by the general formula (1) and an imide compound represented by the general formula (2): where R1 is an organic residue or an F-containing organic residue, X1 and X2 are each H, F, an organic residue or an F-containing organic residue, and X1 and X2 may be the same or different from each other; and where R2 is an organic residue or an F-containing organic residue, and H of a benzene ring may be partially or entirely replaced with F.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 21, 2013
    Applicant: HITACHI MAXELL ENERGY, LTD.
    Inventors: Masayuki OYA, Mitsuhiro KISHIMI, Fusaji KITA
  • Patent number: 8399127
    Abstract: A nonaqueous electrolyte secondary battery, comprising a positive electrode having a positive-electrode active material layer reversibly inserting and extracting lithium ions on a positive-electrode current collector, a negative electrode having a negative-electrode active material layer reversibly inserting and extracting lithium ions on a negative-electrode current collector, and a nonaqueous electrolyte solution, wherein at least one of the positive and negative electrodes has a film on the surface and at least one of the positive electrode, the negative electrode and the nonaqueous electrolyte solution contains a nitrogen-containing cyclic compound. Such a nonaqueous electrolyte secondary battery is superior in high-temperature storage stability allowing preservation of favorable discharge rate even after high-temperature storage.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Masaki Deguchi, Tooru Matsui, Hiroshi Yoshizawa
  • Patent number: 8394540
    Abstract: A secondary battery capable of improving the cycle characteristics is provided. The secondary battery includes a cathode and an anode oppositely arranged with a separator in between, and an electrolytic solution. At least one of the cathode, the anode, the separator, and the electrolytic solution contains a sulfone compound having a carbonate group and a sulfonyl group.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: March 12, 2013
    Assignee: Sony Corporation
    Inventors: Hiroyuki Yamaguchi, Masayuki Ihara, Tadahiko Kubota
  • Patent number: 8389162
    Abstract: An electrolyte for a rechargeable lithium battery that includes a non-aqueous organic solvent, a lithium salt, and an electrolyte additive. The electrolyte additive includes 2 to 6 wt % of succinonitrile, 2 to 6 wt % of alkane sultone, and 1 to 3 wt % of vinylethylene carbonate based on the total weight of the electrolyte.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: March 5, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Duck-Chul Hwang, Sang-Min Lee, Kyoung-Han Yew, Sang-Jin Kim
  • Patent number: 8304117
    Abstract: A gel polymer electrolyte precursor and a rechargeable cell comprising the same are provided. The gel polymer electrolyte precursor comprises a bismaleimide monomer or bismaleimide oligomer, a compound having formula (I): a non-aqueous metal salt electrolyte, a non-protonic solvent, and a free radical initiator, wherein the bismaleimide oligomer is prepared by reaction of barbituric acid and bismaleimide, X comprises oxygen, organic hydrocarbon compounds, organic hydrocarbon oxide compounds, oligomers or polymers, n is 2 or 3, and A independently comprises wherein m is 0˜6, X comprises hydrogen, cyano, nitro or halogen, and R1 independently comprises hydrogen or C1˜4 alkyl.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: November 6, 2012
    Assignee: Industrial Technology Research Institute
    Inventors: Yueh-Wei Lin, Tsung-Hsiung Wang, Jing-Pin Pan, Chang-Rung Yang, Jung-Mu Hsu
  • Publication number: 20120276456
    Abstract: Electrolyte, comprising an aprotic solvent, a lithium salt as conducting salt, and an additive, characterized in that the additive is a compound which contains a protonable nitrogen atom and is hydrolysable by water.
    Type: Application
    Filed: August 27, 2010
    Publication date: November 1, 2012
    Applicant: LI-TEC BATTERY GMBH
    Inventors: Peter Pilgram, Rolf-Walter Terwonne, Denny Thiemig, Joerg Kaiser, Andreas Gutsch
  • Patent number: 8273484
    Abstract: Nitrogen silylated compounds are useful as additives in a nonaqueous electrolytic solution. The electrolytic solution including such additives is suitable for use in electrochemical cells such as lithium and lithium ion batteries. Batteries using this electrolytic solution have long cycle life and high capacity retention.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: September 25, 2012
    Assignee: Novolyte Technologies, Inc.
    Inventors: Wu Xu, Zhongyi Deng, Pascal Bolomey