Oxygen Is Ring Member Of The Hetero Ring Patents (Class 429/329)
  • Patent number: 10468651
    Abstract: A non-aqueous electrolyte secondary battery has improved battery cycle durability and suppresses internal short-circuits. The non-aqueous electrolyte secondary battery includes a power generating element having a positive electrode, a negative electrode, and a separator including a resin film having a three-layer structure, a ratio of a rated capacity to a pore volume of a positive electrode active material layer being 2.08 Ah/cc or more, a ratio of a battery area to a rated capacity being 7 cm2/Ah or more, and a rated capacity being 50 Ah or more, in which a value R represented by Formula 1 is 62 to 110: R = Tortuosity ? ? factor × Thickness ? [ µm ] Porosity ( Formula ? ? 1 ) provided that, the average pore diameter is 0.10 to 0.18 ?m, the porosity is 0.43 to 0.65, the air permeability is 140 to 305 sec/100 ml, and the thickness is 11 to 25 ?m.
    Type: Grant
    Filed: August 10, 2016
    Date of Patent: November 5, 2019
    Assignee: Envision AESC Japan Ltd.
    Inventors: Masato Ono, Ikuma Matsuzaki, Keisuke Matsumoto
  • Patent number: 10361459
    Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material, a negative electrode including a negative active material and an electrolyte including a lithium salt and a non-aqueous organic solvent, wherein the positive active material includes a nickel-based composite oxide represented by the following Chemical Formula 1, the non-aqueous organic solvent includes ethylene carbonate, and the ethylene carbonate is included in an amount of 7.5 to 27.5 volume % based on the total amount of the non-aqueous organic solvent, LiNixCoyMnzO2??[Chemical Formula 1] wherein in Chemical Formula 1, 0.63?x?0.85, 0.05<y<0.25, 0.03<z<0.02 and x+y+z=1.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: July 23, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Seung-Mo Kim
  • Patent number: 10116004
    Abstract: An electrolyte for a lithium battery for solid state drive backup power and a lithium battery for solid state drive backup power including the same, the electrolyte including a non-aqueous organic solvent; and a lithium salt, wherein the lithium salt includes LiBF4 and the electrolyte has a molar concentration of the LiBF4 of about 0.8 M to about 1.2 M.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: October 30, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Da-Woon Han, Kyeu-Yoon Sheem, Jan-Dee Kim, Sung-Hwa Eo
  • Patent number: 10056594
    Abstract: Disclosed is a rechargeable lithium battery including a positive electrode including a positive active material; a negative electrode including a negative active material; an electrolyte solution including a lithium salt and a non-aqueous organic solvent; and a separator between the positive and the negative electrodes, the separator including a porous substrate and a coating layer positioned on at least one side of the porous substrate. The negative active material includes a Si-based material; the non-aqueous organic solvent includes cyclic carbonate including ethylene carbonate, propylene carbonate, or combinations thereof, the cyclic carbonate being included in an amount of about 20 volume % to about 60 volume % based on the total amount of the non-aqueous organic solvent; and the coating layer includes a fluorine-based polymer, an inorganic compound, or combinations thereof. The rechargeable lithium battery has improved cycle-life and high temperature storage characteristics.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: August 21, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kwang-Jo Cheong, Yong-Beom Lee, Myung-Ro Lee, Su-Min Lee
  • Patent number: 10056646
    Abstract: A nonaqueous electrolyte solution includes a lithium salt and a nonaqueous solvent that dissolves the lithium salt. The nonaqueous electrolyte solution contains from at least 0.01 ppm to not more than 100 ppm of a compound represented by the following general formula (1): R1—CR2OR3—CR22OR3??(1) (in formula (1), R1 and R3 represent an organic group having 1 to 10 carbon atoms and optionally having a substituent; R2 represents hydrogen or an organic group having 1 to 10 carbon atoms and optionally having a substituent; and R1 to R3 may each represent the same group or may each represent different groups).
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: August 21, 2018
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masami Iwahori, Yasushi Oura, Kanako Takiguchi
  • Patent number: 10050304
    Abstract: The present invention aims to provide an additive for a non-aqueous electrolyte solution with excellent storage stability capable of forming a stable SEI on the surface of an electrode to improve cell performance such as a cycle performance, a discharge/charge capacity, and internal resistance, when the additive is used for electrical storage devices such as non-aqueous electrolyte solution secondary cells and electric double layer capacitors. The present invention also aims to provide a non-aqueous electrolyte solution containing the additive for a non-aqueous electrolyte solution and to provide an electrical storage device using the non-aqueous electrolyte solution.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: August 14, 2018
    Assignee: Sumitomo Seika & Chemicals Co., Ltd.
    Inventors: Tomohiro Onozuka, Shohei Fujimoto, Koji Fujita
  • Patent number: 9991506
    Abstract: Provided are an electrode binder for lithium secondary batteries, which is suppressed in deterioration in adhesive power, strength and stretchability caused by decomposition of imide groups by hydrolysis, said imide groups being contained in a polyamide-imide that is used as a binder for an electrode active material, and which is capable of prolonging the service life of a lithium secondary battery by suppressing deterioration of an electrode even in cases where water is generated due to repeated charging and discharging; a negative electrode for lithium secondary batteries; a lithium secondary battery; a method for manufacturing a lithium secondary battery having long service life, said lithium secondary battery being suppressed in deterioration of an electrode even in cases where water is generated due to repeated charging and discharging; a method for producing an electrode binder for lithium secondary batteries; and an automobile.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: June 5, 2018
    Assignee: NEC Corporation
    Inventor: Kazuhiko Inoue
  • Patent number: 9899703
    Abstract: The present invention relates to a gel electrolyte comprising a cyclic sulfonic acid ester represented by formula (1). According to the present invention, it is possible to provide a gel electrolyte capable of suppressing the self-discharge of a polymer secondary battery, and a polymer secondary battery using the gel electrolyte. wherein R1 and R2 are each independently a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a halogen group or an amino group with the proviso that R1 and R2 are not hydrogen atoms at the same time; R3 represents a linkage group selected from the group consisting of an alkylene group having 1 to 5 carbon atoms, a carbonyl group, a sulfonyl group, a fluoroalkylene group having 1 to 6 carbon atoms, and a divalent group having 2 to 6 carbon atoms in which alkylene units or fluoroalkylene units are bonded through an ether group.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: February 20, 2018
    Assignees: NEC Corporation, NEC Energy Devices, LTD.
    Inventors: Noboru Yoshida, Ikiko Shimanuki, Shinako Kaneko, Hitoshi Ishikawa
  • Patent number: 9871272
    Abstract: The present invention relates to an electrolyte solution for a lithium secondary battery, which contains a sulfonate compound represented by a specific formula and carboxylic anhydride having one or more C?C double bonds, and a lithium secondary battery using the same.
    Type: Grant
    Filed: November 28, 2013
    Date of Patent: January 16, 2018
    Assignee: NEC Corporation
    Inventors: Shinsaku Saitho, Hitoshi Ishikawa, Kazuhiko Inoue
  • Patent number: 9780411
    Abstract: A nonaqueous electrolyte solution secondary battery having an electrode element having a positive electrode and a negative electrode disposed so as to face each other, a nonaqueous electrolyte solution, and an outer package housing the electrode element and the nonaqueous electrolyte solution, wherein the nonaqueous electrolyte solution contains a cyclic sulfonic acid ester represented by the general formula (1), and a positive electrode active material in the positive electrode is a mixture of a lithium manganese composite oxide having a spinel structure and a lithium transition metal composite compound having a layered rock salt structure.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: October 3, 2017
    Assignee: NEC Corporation
    Inventors: Daisuke Kawasaki, Ikiko Shimanuki, Noboru Yoshida
  • Patent number: 9653757
    Abstract: A nonaqueous electrolyte solution for a secondary battery includes: a nonaqueous solvent including a cyclic carbonate having at least one fluoro group on a side chain thereof, a chain carbonate, and trimethylacetonitrile; and a lithium salt dissolved in the nonaqueous solvent.
    Type: Grant
    Filed: December 26, 2013
    Date of Patent: May 16, 2017
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takayuki Nakatsutsumi, Takashi Takeuchi, Takanobu Chiga, Miyuki Nakai
  • Patent number: 9620812
    Abstract: There is provided a lithium ion battery having high flame retardancy and good cycle characteristics on a long-term basis.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: April 11, 2017
    Assignee: NEC ENERGY DEVICES, LTD.
    Inventors: Shinako Kaneko, Hitoshi Ishikawa
  • Patent number: 9583759
    Abstract: A cathode active material capable of obtaining a high capacity and capable of improving stability or low-temperature characteristics, a method of manufacturing the same, and a battery are provided. A cathode (21) includes a cathode active material including a lithium complex oxide including Li and at least one kind selected from the group consisting of Co, Ni and Mn, and P and at least one kind selected from the group consisting of Ni, Co, Mn, Fe, Al, Mg and Zn as coating elements on a surface of the lithium complex oxide. Preferably, the contents of the coating elements are higher on the surface of the cathode active material than those in the interior thereof, and decrease from the surface to the interior.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: February 28, 2017
    Assignee: Sony Corporation
    Inventors: Guohua Li, Nozomu Morita, Tomoyo Ooyama, Kiyohiko Suzuki, Kotaro Satori, Hideto Azuma, Yosuke Hosoya, Koji Morita, Haruo Watanabe
  • Patent number: 9553333
    Abstract: Provided are a nonaqueous electrolyte solution having improved durability properties in terms of cycling, storage and the like and improved discharge characteristic at a high current density, and a nonaqueous electrolyte battery that uses that nonaqueous electrolyte solution. The nonaqueous electrolyte solution containing a lithium salt and a nonaqueous solvent that dissolves the lithium salt, wherein the nonaqueous electrolyte solution contains a compound represented by formula (1) and at least one compound selected from the group consisting of a compound having a cyano group, a cyclic ester compound having a sulfur atom and a compound having an isocyanate group.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 24, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki Tokuda, Shuhei Sawa, Minoru Kotato, Kunihisa Shima, Youichi Ohashi, Koji Fukamizu
  • Patent number: 9312073
    Abstract: The exemplary embodiment has an object to provide a nonaqueous electrolyte solution having a flame retardancy over a long period and having a good capacity maintenance rate. The exemplary embodiment is a nonaqueous electrolyte solution containing a lithium salt, at least one oxo-acid ester derivative of phosphorus selected from compounds represented by a predetermined formula, and at least one disulfonate ester selected from a cyclic disulfonate ester and a linear disulfonate ester represented by the predetermined formulae.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: April 12, 2016
    Assignee: NEC ENERGY DEVICES, LTD.
    Inventors: Shinako Kaneko, Hitoshi Ishikawa, Yoko Hashizume, Eiji Suzuki
  • Patent number: 9227950
    Abstract: A non-aqueous electrolyte solution containing a cyclic sulfate compound represented by formula (I) is provided, wherein in formula (I), R1 represents a group represented by formula (II) or a group represented by formula (III); R2 represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, a group represented by formula (II), or a group represented by formula (III); and in formula (II), R3 represents a halogen atom, an alkyl group having from 1 to 6 carbon atoms, a halogenated alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or a group represented by formula (IV).
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: January 5, 2016
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Shigeru Mio, Mitsuo Nakamura, Kaichiro Haruta, Hidenobu Nogi, Satoko Fujiyama, Takashi Hayashi, Hidetoshi Tsunoda
  • Patent number: 9196927
    Abstract: A battery capable of improving the cycle characteristics and the storage characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The anode contains a material that can insert and extract an electrode reactant and contains at least one of a metal element and a metalloid element as an element, and the electrolytic solution contains a solvent, an electrolyte salt, and a sulfone compound having a given structure.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: November 24, 2015
    Assignee: Sony Corporation
    Inventors: Masayuki Ihara, Hiroyuki Yamaguchi, Tadahiko Kubota
  • Patent number: 9178254
    Abstract: A lithium air battery including: a negative electrode including lithium; a positive electrode using oxygen as a positive active material; and an organic electrolyte, wherein the organic electrolyte includes a metal-ligand complex.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: November 3, 2015
    Assignees: SAMSUNG ELECTRONICS CO., LTD., NATIONAL UNIVERSITY CORPORATION MIE UNIVERSITY
    Inventors: Dong-joon Lee, Victor Roev, Young-gyoon Ryu, Dong-min Im, Yasuo Takeda, Osamu Yamamoto, Nobuyuki Imanishi
  • Patent number: 9093716
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 28, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki Tokuda, Takashi Fujii, Minoru Kotato, Masahiro Takehara, Masamichi Onuki, Youichi Ohashi, Shinichi Kinoshita
  • Patent number: 9083021
    Abstract: Disclosed is a method including (a) mixing a precursor of a material for preparing at least one material selected from the group consisting of low crystalline carbon and amorphous carbon with a hydrophilic material including an oxide capable of intercalating and deintercalating ions, followed by purification to prepare a mixture for coating, (b) mixing the mixture for coating with a crystalline carbon-based material to prepare a core-shell precursor in which the mixture for coating is coated on a core including the crystalline carbon-based material, and (c) calcining the core-shell precursor to carbonize the material for preparing the at least one material selected from the group consisting of low crystalline carbon and amorphous carbon into the at least one material selected from the group consisting of low crystalline carbon and amorphous carbon.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: July 14, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Kyun Chang, WonSeok Chang, JungMin Han
  • Patent number: 9083033
    Abstract: Disclosed is a method including (a) mixing a precursor of a material for preparing at least one material selected from the group consisting of low crystalline carbon and amorphous carbon with a hydrophilic material, followed by purification to prepare a mixture for coating, (b) mixing the mixture for coating with a crystalline carbon-based material to prepare a core-shell precursor in which the mixture for coating is coated on a core including a crystalline carbon-based material, and (c) calcining the core-shell precursor to carbonize the material for preparing the at least one material selected from the group consisting of low crystalline carbon and amorphous carbon into the at least one material selected from the group consisting of low crystalline carbon and amorphous carbon.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: July 14, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Kyun Chang, WonSeok Chang, JungMin Han
  • Patent number: 9077001
    Abstract: Disclosed is a method including (a) mixing a precursor of a material for preparing at least one material selected from the group consisting of low crystalline carbon and amorphous carbon with a metal and/or a non-metal capable of intercalating and deintercalating ions, followed by purification to prepare a mixture for coating, (b) mixing the mixture for coating with a crystalline carbon-based material to prepare a core-shell precursor in which the mixture for coating is coated on a core including the crystalline carbon-based material, and (c) calcining the core-shell precursor to carbonize the material for preparing the at least one material selected from the group consisting of low crystalline carbon and amorphous carbon into the at least one material selected from the group consisting of low crystalline carbon and amorphous carbon.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: July 7, 2015
    Assignee: LG CHEM, LTD
    Inventors: Sung-Kyun Chang, WonSeok Chang, JungMin Han
  • Publication number: 20150140443
    Abstract: The present invention relates to a secondary battery cg a positive electrode capable of absorbing and releasing lithium, and a electrolyte solution containing a non-aqueous electrolytic solvent, wherein the positive electrode has a positive electrode active material which operates at 4.5 V or more relative to lithium, and wherein the non-aqueous electrolytic solvent contains a sulfone compound represented by a predetermined formula and a fluorinated ether compound represented by a predetermined formula.
    Type: Application
    Filed: June 4, 2013
    Publication date: May 21, 2015
    Inventors: Makiko Takahashi, Takehiro Noguchi, Hideaki Sasaki, Yuukou Katou, Akinobu Nakamura
  • Publication number: 20150132663
    Abstract: There is provided a secondary battery comprising: a positive electrode capable of intercalating and deintercalating a lithium ion; a negative electrode capable of intercalating and deintercalating a lithium ion; and an electrolytic solution, wherein the electrolytic solution comprises: a fluorine-containing cyclic ether compound represented by the following formula (1); and at least one selected from a fluorine-containing chain ether compound or a fluorine-containing phosphate ester compound; wherein R1 to R6 are each independently selected from a hydrogen atom, a fluorine atom, a chlorine atom, or a fluorine-substituted, chlorine-substituted, or unsubstituted alkyl group, and at least one of R1 to R6 is selected from a fluorine atom or a fluorine-substituted alkyl group.
    Type: Application
    Filed: February 26, 2013
    Publication date: May 14, 2015
    Inventors: Takehiro Noguchi, Hideaki Sasaki, Yuukou Katou, Makiko Takahashi
  • Patent number: 9017883
    Abstract: The present invention discloses a rechargeable lithium battery including a positive electrode, a negative electrode including lithium titanate represented by Chemical Formula 1, and an electrolyte impregnating the positive and negative electrodes and including a sultone-based compound and maleic anhydride, wherein the sultone-based compound and the maleic anhydride are respectively included in an amount of about 0.5 wt % to about 5 wt % based on the total weight of the electrolyte. Chemical Formula 1: Li4?xTi5+x?yMyO12. In Chemical Formula 1, M is an element selected from Mg, V, Cr, Nb, Fe, Ni, Co, Mn, W, Al, Ga, Cu, Mo, P, or a combination thereof, 0?x?1, 0?y?1.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 28, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Su-Hee Han
  • Patent number: 9005821
    Abstract: A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein an open circuit voltage in a completely charged state per pair of a positive electrode and a negative electrode is from 4.25 to 6.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: April 14, 2015
    Assignee: Sony Corporation
    Inventors: Toru Odani, Tadahiko Kubota
  • Publication number: 20150086878
    Abstract: The present invention provides non-aqueous electrolyte solution for a lithium secondary battery, comprising an ester-based compound having a branched-chain alkyl group and an ester-based compound having a straight-chain alkyl group; and a lithium secondary battery using the same.
    Type: Application
    Filed: December 2, 2014
    Publication date: March 26, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Sung-Hoon YU, Doo-Kyung YANG, Jong-Ho JEON, Min-Jung JOU
  • 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: 8968938
    Abstract: Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte. Also disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and an anode having formed thereon a coating layer containing a decomposition product of the compound of Formula 1. Moreover, disclosed is an electrochemical device comprising: a cathode having a complex formed between the surface of a cathode active material and an aliphatic nitrile compound; and a non-aqueous electrolyte containing the compound of Formula 1 or its decomposition product.
    Type: Grant
    Filed: January 12, 2007
    Date of Patent: March 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Young Soo Kim, Soon Ho Ahn, Joon Sung Bae, Cha Hun Ku, Soo Hyun Ha, Duk Hyun Ryu, Sei Lin Yoon
  • Publication number: 20150044573
    Abstract: The invention relates to lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate, the use of lithium 1-trifluoromethoxy-1,2,2,2-tetra-fluoroethanesulphonate as electrolyte salt in lithium-based energy stores and also ionic liquids comprising 1-trifluoro-methoxy-1,2,2,2-tetrafluoro-ethanesulphonate as anion.
    Type: Application
    Filed: February 27, 2013
    Publication date: February 12, 2015
    Inventors: Gerd-Volker Röschenthaler, Martin Winter, Stefano Passerini, Katja Vlasov, Nataliya Kalinovich, Christian Schreiner Schreiner, Raphael Wilhelm Schmitz, Ansgar Romek Müller, Rene Schmitz, Tanja Schedlbauer, Alexandra Lex-Balducci, Miriam Kunze
  • Patent number: 8951680
    Abstract: A magnesium battery electrode assembly is described, including a current collector comprising a metal, an overlayer material on the metal and an electrode layer comprising an electrode active material disposed on the current collector. The overlayer material passivates the metal, or inhibits a corrosion reaction that would occur between the metal and an electrolyte in the absence of the overlayer material.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: February 10, 2015
    Assignee: Pellion Technologies, Inc.
    Inventors: Robert Ellis Doe, Kristin A. Persson, David Eaglesham, Andrew Gmitter
  • Patent number: 8945776
    Abstract: An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same, the electrolyte including a lithium salt, a silylborate-based compound, an anhydride component, and a non-aqueous organic solvent.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: February 3, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Tae-Ahn Kim, Mi-Hyeun Oh, Na-Rae Won, Sung-Hoon Kim
  • Patent number: 8940439
    Abstract: A secondary battery capable of suppressing resistance rise even after repeated charge and discharge is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode contains titanium-containing lithium composite as an anode active material, and the electrolytic solution contains cyclic disulfonic acid anhydride.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: January 27, 2015
    Assignee: Sony Corporation
    Inventors: Atsumichi Kawashima, Hiroshi Imoto, Tomoyuki Shiratsuchi, Takuma Sakamoto, Naoto Ueda, Atsushi Nishimoto, Tadahiko Kubota, Masayuki Ihara
  • Publication number: 20140356733
    Abstract: Provided are an additive for a lithium battery electrolyte, wherein the additive is an ethylene carbonate based compound represented by the following Formula 1 or 2, an organic electrolyte solution including the additive, and a lithium battery including the organic electrolyte solution: in the above Formulae, R1, R2, R3, and R4 are each independently a non-polar functional group or a polar functional group, the polar functional group including a heteroatom belonging to groups 13 to 16 of the periodic table of elements, and one or more of R1, R2, R3, and R4 are the polar functional groups.
    Type: Application
    Filed: May 5, 2014
    Publication date: December 4, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Makhmut Khasanov, Woo-Cheol Shin, Vladimir Egorov, Pavel Alexandrovich Shatunov, Denis Chernyshov, Sang-Hoon Kim, Ha-Rim Lee, In-Haeng Cho, Alexey Tereshchenko
  • Publication number: 20140335399
    Abstract: Disclosed is an additive for an electrochemical cell wherein the additive includes an N—O bond. The additive is most preferably included in a nonaqueous electrolyte of the cell. Also disclosed are cells and batteries including the additive, and methods of charging the batteries and cells. An electrochemical cell including the additive preferably has an anode that includes lithium and a cathode including an electroactive sulfur-containing material.
    Type: Application
    Filed: July 29, 2014
    Publication date: November 13, 2014
    Inventor: Yuriy V. Mikhaylik
  • Patent number: 8883356
    Abstract: Electrolyte and lithium secondary batteries containing the same are disclosed. In one instance, the electrolyte includes a lithium salt, a solvent and an additive. In some examples, the additive includes substances A, B and C, wherein substance A is vinylene carbonate, substance B includes at least one of fluorinated or chlorinated ethylene carbonate or diethylene carbonate, and substance C includes at least one of ethylene sulfite, 1,3-propanesultone and propenyl sulfite.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: November 11, 2014
    Assignee: BYD Company Limited
    Inventors: GuiShu Zhou, Lei Si, Yong Wang, YiWei Fan
  • 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: 8852818
    Abstract: A non-aqueous secondary battery contains a positive electrode, a negative electrode, a separator and a non-aqueous electrolytic solution. The positive electrode contains a layered structure lithium-containing compound oxide, or a spinel lithium-containing compound oxide containing manganese as an active material. The non-aqueous electrolytic solution contains at least one additive selected from a sulfonic acid anhydride, a sulfonate ester derivative, a cyclic sulfate derivative and a cyclic sulfonate ester derivative, and a vinylene carbonate or a derivative of the vinylene carbonate.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: October 7, 2014
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Jinbao Zhao, Eri Kojima
  • Publication number: 20140272603
    Abstract: An electrolyte solution for a lithium sulfur battery contains a lithium oxalatoborate compound in a 0.05-2 M solution in conventional lithium sulfur battery electrolyte solvents, optionally with other lithium compounds. Examples of solvents include dimethoxyethane (DME), dioxolane, and triethyleneglycol dimethyl ether (TEGDME). Electrochemical cells contain a lithium anode, a sulfur-containing cathode, and a non-aqueous electrolyte containing the lithium oxalatoborate compound. Lithium sulfur batteries contain a casing enclosing a plurality of the cells.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Li Yang, Mei Cai, Minghong Liu
  • Publication number: 20140220455
    Abstract: A rechargeable lithium battery including a negative electrode including a silicon-based negative active material; a positive electrode including a positive active material including a sacrificial positive active material selected from lithium nickel oxides, lithium molybdenum oxides, and combinations thereof; and a non-aqueous electrolyte, is disclosed.
    Type: Application
    Filed: July 23, 2013
    Publication date: August 7, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Soon-Rewl Lee, Ick-Kyu Choi, Young-Ki Kim, Young-Hun Lee, Na-Leum Yoo, Na-Ri Park, Yong-Chul Park
  • 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
  • Publication number: 20140212770
    Abstract: Disclosed are a non-aqueous electrolytic solution that exhibits excellent electrochemical characteristics over a wide temperature range, and an electrochemical device using the non-aqueous electrolytic solution. The non-aqueous electrolytic solution includes a non-aqueous solvent and an electrolyte salt dissolved in the non-aqueous solvent, wherein the non-aqueous electrolytic solution further comprises one compound represented by general formula (I): wherein R1 represents alkyl having 1 to 6 carbon atoms, cycloalkyl having 3 to 6 carbon atoms, alkenyl having 2 to 6 carbon atoms, alkynyl having 3 to 6 carbon atoms, or aryl having 6 to 12 carbon atoms; X represents a divalent linking group that has 1 to 6 carbon atoms and is optionally substituted by a halogen atom; and Y1 represents a specific substituent, for example, alkylcarbonyl.
    Type: Application
    Filed: August 3, 2012
    Publication date: July 31, 2014
    Applicant: Ulbe industries, Ltd.
    Inventors: Koji Abe, Kei Shimamoto
  • Publication number: 20140199600
    Abstract: The present invention provides a nonaqueous electrolyte solution, which can improve flame retardancy and ameliorate performances of a battery without deteriorating the basic battery performance as far as possible, and a secondary battery. The nonaqueous electrolyte solution is a nonaqueous electrolyte solution for a secondary battery that contains metal salts including ions of metals belonging to group 1 or 2 of the periodic table and a specific cyclic compound having phosphorus and nitrogen atoms in a non-protonic solvent. The non-protonic solvent is a solvent that contains at least one kind of carboxylic acid ester compound and carbonic acid ester compound, and a ratio (MPN/Ms) between a mass (Ms) of the non-protonic solvent containing the metal salts and a mass (MPN) of the cyclic compound is 0.01 to 1.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Applicant: FUJIFILM CORPORATION
    Inventors: Toshihiko YAWATA, Ikuo KINOSHITA
  • Patent number: 8758944
    Abstract: Provided is a secondary battery containing polyalkyleneglycol diglycidylether represented by formula I added in a predetermined amount to an electrolyte for the battery. The secondary battery containing the above additive exhibits remarkably improved high-temperature characteristics, prevents deterioration in rate characteristics and cycle characteristics, and considerably reduces thickness swelling of the battery so as to prevent battery leakage, ultimately enhancing safety of the battery.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: June 24, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Suyoung Ryu, Dongmyung Kim, Eun young Kim
  • Publication number: 20140162142
    Abstract: An electrolytic solution including a solvent including 4,5-difluoro-1,3-dioxolane-2-one. The content of 4,5-difluoro-1,3-dioxolane-2-one is preferably within a range from 5 wt % to 50 wt % In the case where 4,5-difluoro-1,3-dioxolane-2-one is mixed and used with 4-fluoro-1,3-dioxolane-2-one, the content of 4,5-difluoro-1,3-dioxolane-2-one is preferably within a range from 5 vol ppm to 2000 vol ppm.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 12, 2014
    Applicant: Sony Corporation
    Inventors: Tadahiko Kubota, Hiroyuki Yamaguchi, Masayuki Ihara
  • Patent number: 8748043
    Abstract: Disclosed is an electrochemical cell comprising a lithium anode and a sulfur-containing cathode and a non-aqueous electrolyte. The cell exhibits high utilization of the electroactive sulfur-containing material of the cathode and a high charge-discharge efficiency.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: June 10, 2014
    Assignee: Sion Power Corporation
    Inventor: Yuriy V. Mikhaylik
  • Publication number: 20140154588
    Abstract: A method for preparing an ionic liquid nanoscale ionic material, the ionic liquid nanoscale ionic material and a battery that includes a battery electrolyte that comprises the ionic liquid nanoscale ionic material each provide superior performance. The superior performance may be manifested within the context of inhibited lithium dendrite formation.
    Type: Application
    Filed: July 10, 2012
    Publication date: June 5, 2014
    Applicant: CORNELL UNIVERSITY
    Inventors: Lynden A. Archer, Surya S. Moganty, Yingying Lu
  • Publication number: 20140127594
    Abstract: There is provided an electrolyte solution including a solvent formed from a sulfone, and a magnesium salt dissolved in the solvent.
    Type: Application
    Filed: September 23, 2013
    Publication date: May 8, 2014
    Applicant: Sony Corporation
    Inventors: Yuri Nakayama, Hideki Kawasaki, Hiroyuki Morioka
  • Patent number: 8715863
    Abstract: The battery includes an electrolyte activating one or more cathodes and one or more anodes. The electrolyte includes one or more salts in a solvent. The solvent includes one or more organic solvents and one or more silanes and/or one or more siloxanes.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: May 6, 2014
    Assignee: Quallion LLC
    Inventors: Zhengcheng Zhang, Phuong-Nghi Karen Lam, Mikito Nagata, Hisashi Tsukamoto
  • 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