And Acyclic Ether Solvent Patents (Class 429/333)
  • Patent number: 9450273
    Abstract: Secondary batteries capable of improving cycle characteristics are provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. A separator provided between the cathode and the anode is impregnated with the electrolytic solution. The electrolytic solution contains a solvent and an electrolyte salt. The solvent contains a cyclic compound having a disulfonic acid anhydride group (—S(?O)2—O—S(?O)2—) and at least one of a nitrile compound. Compared to a case that the solvent does not contain both the cyclic compound having the disulfonic acid anhydride group and succinonitrile or a case that that the solvent contains at least one thereof, chemical stability of the electrolytic solution is improved. Thus, even if charge and discharge are repeated, electrolytic solution decomposition is inhibited.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: September 20, 2016
    Assignee: SONY CORPORATION
    Inventors: Yuko Hayakawa, Tadahiko Kubota, Masayuki Ihara
  • Patent number: 9389278
    Abstract: Disclosed is an apparatus and method for estimating a power of a secondary battery comprising a blended cathode material.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: July 12, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Won-Tae Joe, Sun-Young Cha
  • Patent number: 9316696
    Abstract: Disclosed is an apparatus and method for estimating a power of a secondary battery comprising a blended cathode material.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: April 19, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Won-Tae Joe, Sun-Young Cha
  • 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: 8927159
    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: Grant
    Filed: July 3, 2013
    Date of Patent: January 6, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Hoon Yu, Doo-Kyung Yang, Jong-Ho Jeon, Min-Jung Jou
  • Patent number: 8927160
    Abstract: The invention relates to a pentacyclic anion salt and to the use thereof in electrolyte compositions. The compound comprises an inorganic, organic or organometallic cation M of valency m (1?m?3) and m anions corresponding to the formula (I) in which Rf is a —CFZ?Z? group in which Z? is F or a perfluoroalkyl group having from 1 to 3 carbon atoms, and Z? is an H, F or Cl group, an optionally fluorinated or perfluorinated alkoxy group having from 1 to 5 carbon atoms, an optionally fluorinated or perfluorinated oxaalkoxy group having from 1 to 5 carbon atoms or an optionally fluorinated or perfluorinated alkyl group having from 1 to 5 carbon atoms; Z? being other than F when Z? is F. An electrolyte composition comprises said salt in solution in a liquid solvent or a polymer solvent.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: January 6, 2015
    Assignees: Centre National de la Recherche Scientifique, Universite de Rome “La Sapienza”, Universite de Picardie Jules Verne, Universite de Technologie de Varsovie
    Inventors: Michel Armand, Sylvie Grugeon, Stephane Laruelle, Maria Bukowska, Przemyslaw Szczecinski, Wladyslaw Wieczorek, Leszek Niedzicky, Bruno Scrosati, Stefania Panero, Priscilla Realle
  • Publication number: 20140377667
    Abstract: The invention relates to lithium-2-methoxy-1,1,2,2-tetrafluoro-ethanesulfonate, to the use thereof as conductive salt in lithium-based energy accumulators, and ionic liquids comprising 2-methoxy-1,1,2,2-tetrafluoro-ethanesulfonate as an anion.
    Type: Application
    Filed: July 25, 2012
    Publication date: December 25, 2014
    Applicants: JACOBS UNIVERSITY BREMEN gGMBH, WESTFALISCHE WILHELMS UNIVERSITAT MUNSTER
    Inventors: Gerd-Volker Roschenthaler, Martin Winter, Katja Vlasov, Nataliya Kalinovich, Christian Schreiner, Raphael Wilhelm Schmitz, Romek Ansgar Muller, Rene Schmitz, Alexandra Lex-Balducci, Miriam Kunze
  • Publication number: 20140342244
    Abstract: The electrolyte includes one or more salts and a silane. The silane has a silicon linked to one or more first substituents that each include a poly(alkylene oxide) moiety or a cyclic carbonate moiety. The silane can be linked to four of the first substituents. Alternately, the silane can be linked to the one or more first substituents and one or more second substituents that each exclude both a poly(alkylene oxide) moiety and a cyclic carbonate moiety.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 20, 2014
    Inventors: Robert C. West, Khalil Amine, Zhengcheng Zhang, Qingzheng Wang, Nicholas A.A. Rossi, Sang Young Yoon, Hiroshi Nakahara
  • Patent number: 8883344
    Abstract: An electrolyte for a lithium secondary battery having flame retardancy, low negative electrode interfacial resistance, and excellent high temperature properties and life characteristics, and a lithium secondary battery including the same. An electrolyte for a lithium secondary battery of the present invention may include a non-aqueous organic solvent, a lithium salt, fluorinated ether or phosphazene, and a resistance-improving additive represented as the following chemical formula (1): FSO2—R1—SO2F??[Chemical Formula 1] wherein R1 is a C1-C12 hydrocarbon unsubstituted or substituted with at least one fluorine.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: November 11, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sinyoung Park, Yongbeom Lee, Sunyoung Kim, Bora Lee
  • Publication number: 20140322616
    Abstract: A non-aqueous electrolyte solution for secondary batteries, comprising a lithium salt (total number of moles of lithium atoms: NLi) and a liquid composition, wherein the liquid composition comprises a specific fluorinated solvent (?) and a cyclic carboxylic acid ester compound (total number of moles: NA), and may contain a specific compound (?) (total number of moles: NB), the content of the fluorinated solvent (?) is from 40 to 80 mass %, NA/NLi is from 1.5 to 7.0, and (NA+NB)/NLi is from 3 to 7.0; and, a lithium ion secondary battery employing such a non-aqueous electrolyte solution for secondary batteries.
    Type: Application
    Filed: March 27, 2014
    Publication date: October 30, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Yu ONOZAKI, Toyokazu ENTA, Masao IWAYA
  • Patent number: 8871384
    Abstract: There is provided a non-aqueous electrolytic solution comprising an electrolyte salt, a specific fluorine-containing solvent and a fluorine-containing cyclic carbonate represented by the formula (A1): wherein X1 to X4 are the same or different and each is —H, —F, —CF3, —CHF2, —CH2F, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3; at least one of X1 to X4 is —F, —CF3, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3, and the non-aqueous electrolytic solution has further excellent noncombustibility and is suitable for lithium secondary batteries.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: October 28, 2014
    Assignee: Daikin Industries, Ltd.
    Inventors: Meiten Koh, Hideo Sakata, Hitomi Nakazawa, Michiru Tanaka, Akiyoshi Yamauchi
  • Publication number: 20140302401
    Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 9, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: STEPHEN E. BURKHARDT, Xudong Chen, Charles J. Dubois, William L. Holstein, Kostantinos Kourtakis, Mark Gerrit Roelofs
  • Publication number: 20140302402
    Abstract: Electrolyte compositions comprising fluorinated acyclic carboxylic acid esters, fluorinated acyclic carbonates, and/or fluorinated acyclic ethers; co-solvents; and certain film-forming chemical compounds are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide the improved performance of a combination of high capacity and high cycle life.
    Type: Application
    Filed: April 4, 2014
    Publication date: October 9, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: XUDONG CHEN, CHARLES J. DUBOIS, WILLIAM L. HOLSTEIN, KOSTANTINOS KOURTAKIS, MARK GERRIT ROELOFS
  • Publication number: 20140272604
    Abstract: Provided is an electrolyte solution additive including lithium difluorophosphate (LiDFP), a vinylene carbonate-based compound, and a sultone-based compound. Also, a non-aqueous electrolyte solution including the electrolyte solution additive and a lithium secondary battery including the non-aqueous electrolyte solution are provided. The lithium secondary battery including the electrolyte solution additive of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, and swelling characteristics.
    Type: Application
    Filed: May 29, 2014
    Publication date: September 18, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Young Min Lim, Chul Haeng Lee, Doo Kyung Yang, Yu Ha An
  • Publication number: 20140272605
    Abstract: Provided are a non-aqueous electrolyte solution which includes a lithium salt including lithium bis(fluorosulfonyl)imide (LiFSI) and an additive including a vinylene carbonate-based compound and a sultone-based compound, and a lithium secondary battery including the non-aqueous electrolyte solution. The lithium secondary battery including the non-aqueous electrolyte solution of the present invention may improve low-temperature output characteristics, high-temperature cycle characteristics, output characteristics after high-temperature storage, and capacity characteristics.
    Type: Application
    Filed: June 2, 2014
    Publication date: September 18, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Young Min Lim, Chul Haeng Lee, Doo Kyung Yang, Kyoung Ho Ahn, Gwang Yeon Kim
  • Publication number: 20140242472
    Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, comprising a sulfolane-based additive; and a lithium secondary battery using the same. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention comprises an ionizable lithium salt; an organic solvent; and a sulfolane compound of formula (I), the sulfolane compound being present in an amount of 0.1 to 5 parts by weight based on 100 parts by weight of the total weight of the lithium salt and the organic solvent. The non-aqueous electrolyte solution for a lithium secondary battery according to the present invention can exhibit superior storage characteristic and life cycle at a high temperature, with maintaining good output characteristic at a low temperature.
    Type: Application
    Filed: May 14, 2014
    Publication date: August 28, 2014
    Applicant: LG Chem, Ltd.
    Inventors: Yu-Ha An, Doo Kyung Yang, Chul-Haeng Lee, Young-Min Lim, Jong-Ho Jeon
  • Patent number: 8771881
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: July 8, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinbum Kim, Jungkang Oh
  • Publication number: 20140186721
    Abstract: An electrolyte including an alkali metal salt; a polar aprotic solvent; and a triazinane trione; wherein the electrolyte is substantially non-aqueous.
    Type: Application
    Filed: March 4, 2014
    Publication date: July 3, 2014
    Applicant: UCHICAGO ARGONNE, LLC
    Inventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine
  • Patent number: 8715865
    Abstract: Non-aqueous electrolyte solutions capable of protecting negative electrode materials such as lithium metal and carbonaceous materials in energy storage electrochemical cells (e.g., lithium metal batteries, lithium ion batteries and supercapacitors) include an electrolyte salt, a non-aqueous electrolyte solvent mixture, an unsaturated organic compound 4-methylene-1,3-dioxolan-2-one or 4,5-dimethylene-1,3-dioxolan-2-one, and other optional additives. The 1,3-dioxolan-2-ones help to form a good solid electrolyte interface on the negative electrode surface.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: May 6, 2014
    Assignee: BASF Corporation
    Inventors: Wu Xu, Pascal Bolomey, Martin W. Payne
  • Patent number: 8697293
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt and an organic solvent. Based on 100 parts by weight of the non-aqueous electrolyte solution, the non-aqueous electrolyte solution includes 1 to 5 parts by weight of sultone compound having a carbon-carbon unsaturated bond in a cyclic structure; 1 to 5 parts by weight of cyclic carbonate compound with a vinyl group; 5 to 10 parts by weight of cyclic carbonate compound that is substituted with halogen; and 1 to 5 parts by weight of dinitrile compound. This non-aqueous electrolyte solution improves stability of a SEI film formed on a surface of an anode of a lithium secondary battery and thus improves normal temperature cycle performance and high temperature cycle performance.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: April 15, 2014
    Assignee: LG Chem, Ltd.
    Inventors: So-Young Park, Hee-Gyoung Kang, Joon-Sung Bae
  • Patent number: 8685567
    Abstract: A rechargeable lithium battery including: a negative electrode including lithium-vanadium-based oxide, negative active material; a positive electrode including a positive active material to intercalate and deintercalate lithium ions; and an electrolyte including a non-aqueous organic solvent, and a lithium salt. The lithium salt includes 0.7 to 1.2M of a first lithium salt including LiPF6; and 0.3 to 0.8M of a second lithium salt selected from the group consisting of LiBC2O4F2, LiB(C2O4)2, LiN(SO2C2F5)2, LiN(SO2CF3)2, LiBF4, LiClO4, and combinations thereof.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: April 1, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Su-Yeong Park, Nam-Soon Choi, Kyoung-Han Yew, Doo-Kyoung Lee, Sung-Soo Kim
  • 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: 20140023935
    Abstract: Provided is a lithium secondary cell of 5V class having a positive electrode operating voltage of 4.5V or higher with respect to metallic lithium; the lithium secondary cell has high energy density, inhibits degradation of the electrolytic solution that comes in contact with the positive electrode and the negative electrode, and has particularly long cell life when used under high-temperature environments.
    Type: Application
    Filed: April 13, 2012
    Publication date: January 23, 2014
    Applicant: NEC Corporation
    Inventors: Takehiro Noguchi, Hideaki Sasaki, Makiko Uehara, Kazuaki Matsumoto, Hiroshi Hatakeyama
  • Patent number: 8632917
    Abstract: An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X1, X2, and X3 each independently represent O, S, or NR9; and R1, R2, R3, R4, R5, R6, R7, R8, and R9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: January 21, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyonn Ryu, Seung-sik Hwang, Dong-joon Lee, Boris A. Trofimov
  • 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: 8586250
    Abstract: To provide a non-aqueous electrolyte solution for storage battery devices which has high lithium salt solubility, high conductivity and excellent cycle characteristics, and a storage battery device wherein such a non-aqueous electrolyte solution is used. A non-aqueous electrolyte solution for storage battery devices, which comprises a specific lithium salt (A) and a solvent (B) containing a hydrofluoroether (b1) represented by CF3CH2OCF2CF2H and a carbonate type solvent (b2), wherein the content of the hydrofluoroether (b1) is from 1 to 30 vol % based on the total amount i.e. 100 vol % of the solvent (B); and a storage battery device wherein such a non-aqueous electrolyte solution for storage battery devices is used.
    Type: Grant
    Filed: March 5, 2012
    Date of Patent: November 19, 2013
    Assignee: Asahi Glass Company, Limited
    Inventor: Masao Iwaya
  • Publication number: 20130295468
    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: July 3, 2013
    Publication date: November 7, 2013
    Inventors: Sung-Hoon YU, Doo-Kyung YANG, Jong-Ho JEON, Min-Jung JOU
  • Patent number: 8557447
    Abstract: The rechargeable lithium battery includes: a negative electrode including a non-carbon-based negative active material; a positive electrode including a positive active material that reversibly intercalates and deintercalates lithium ions; and an electrolyte that includes a non-aqueous organic solvent that includes ethylene carbonate in an amount of 20 volume % or less, a lithium salt including LiPF6, a first additive represented by the following Formula 1 and a second additive that is LiB(C2O4)2. The electrolyte has a viscosity of 3.02 cP or less: wherein, R1 and R2 are independently selected from the group consisting of hydrogen, a halogen, a cyano (CN), a nitro (NO2), and a C1 to C5 fluoroalkyl, provided that at least one of R1 and R2 is selected from the group consisting of a halogen, a cyano (CN), a nitro (NO2), and a C1 to C5 fluoroalkyl.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: October 15, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Doo-Kyoung Lee
  • Publication number: 20130157116
    Abstract: Disclosed is a non-aqueous electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. The non-aqueous electrolyte including an ionizable lithium salt and an organic solvent may further include (a) 1 to 10 parts by weight of a compound having a vinylene group or vinyl group per 100 parts by weight of the non-aqueous electrolyte, and (b) 10 to 300 parts by weight of a dinitrile compound having an ether bond per 100 parts by weight of the compound having the vinylene group or vinyl group. The lithium secondary battery comprising the non-aqueous electrolyte may effectively suppress the swelling and improve the charge/discharge cycle life.
    Type: Application
    Filed: February 12, 2013
    Publication date: June 20, 2013
    Applicant: LG CHEM, LTD.
    Inventor: LG CHEM, LTD.
  • Patent number: 8455142
    Abstract: A non-aqueous electrolyte can suppress decomposition of a solvent, improve the cycle life of a secondary battery, suppress the rise of resistance of a secondary battery and improve the capacity maintenance ratio of a secondary battery.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: June 4, 2013
    Assignee: NEC Energy Devices, Ltd.
    Inventors: Hitoshi Ishikawa, Yasutaka Kono, Koji Utsugi, Yoko Hashizume, Shinako Kaneko, Hiroshi Kobayashi
  • 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: 8399126
    Abstract: A non-aqueous electrolyte is provided that includes a non-aqueous solvent and an electrolyte salt, wherein the non-aqueous solvent contains a fluorinated ether (1) represented by the following Formula: HCF2CF2CF2CH2—O—CF2CF2H (1). This non-aqueous electrolyte has good wettability to a polyolefin separator, can provide a battery with excellent load characteristics for a long period, does not easily decompose in the battery under high-temperature storage, and causes little gas generation due to decomposition. Furthermore, a non-aqueous electrolyte secondary battery is provided that includes a positive electrode, a negative electrode, a separator, and the above-described non-aqueous electrolyte.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: March 19, 2013
    Assignee: Panasonic Corporation
    Inventors: Tooru Matsui, Tetsuo Nanno
  • Patent number: 8349493
    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: Grant
    Filed: November 24, 2009
    Date of Patent: January 8, 2013
    Assignee: The Gillette Company
    Inventors: Nikolai Nikolaevich Issaev, Michael Pozin, Michael Dean Sliger, Eric Navok, Fred Joseph Berkowitz
  • Publication number: 20130004859
    Abstract: Disclosed are a nonaqueous electrolyte for a lithium secondary battery containing a hetero polycyclic compound and a lithium secondary battery using the same.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 3, 2013
    Inventors: Sung-Hoon YU, Doo Kyung YANG, Jong-Ho JEON, Min-Jung JOU
  • Publication number: 20120315549
    Abstract: A battery electrolyte solution contains from 0.001 to 20% by weight of certain phosphorus-sulfur compounds. The phosphorus-sulfur compound performs effectively as a solid-electrolyte interphase (SEI) forming material. The phosphorus-sulfur compound has little adverse impact on the electrical properties of the battery, and in some cases actually improves battery performance. Batteries containing the electrolyte solution form robust and stable SEIs even when charged at high rates during initial formation cycles.
    Type: Application
    Filed: November 16, 2009
    Publication date: December 13, 2012
    Inventors: Houxiang Tang, William J. Kruper, JR., Ravi B. Shankar, Deidre A. Strand, Peter M. Margl, Andrew J. Pasztor, JR., David R. Wilson, Jerey R. Stajdi
  • Patent number: 8263267
    Abstract: A rechargeable battery and associated methods, the rechargeable battery including an anode, a cathode, wherein the cathode includes a ternary cathode-active material, a separator interposed between the cathode and the anode, an electrolyte, and a housing enclosing the electrolyte, the anode, and the cathode, wherein the electrolyte includes a lithium salt, a non-aqueous organic solvent, about 0.5 weight % to about 5 weight % of succinonitrile, and at least one of about 1 weight % to about 10 weight % of halogenated ethylene carbonate and about 1 weight % to about 5 weight % of vinyl ethylene carbonate.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: September 11, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jinhee Kim
  • Publication number: 20120225346
    Abstract: According to one embodiment, a nonaqueous electrolyte battery is provided. The battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes lithium iron phosphate having an olivine structure as positive electrode active material. The negative electrode includes lithium titanate having a spinel structure and a monoclinic ?-type titanium complex oxide as a negative electrode active material.
    Type: Application
    Filed: September 16, 2011
    Publication date: September 6, 2012
    Inventors: Keigo Hoshina, Hiroki Inagaki, Norio Takami
  • Patent number: 8252447
    Abstract: A portable power source system including a battery pack housing at least one secondary battery, wherein first and second internal terminals for connecting to a pair of external terminals are provided inside the battery pack, and two or more operations in different operating directions are required to connect the external terminals to the internal terminals. The battery pack includes external terminal inserting portions for inserting the external terminals, and the two or more operations include a first operation including inserting the external terminals into the external terminal inserting portions and a second operation in a direction different from that of the first operation.
    Type: Grant
    Filed: January 5, 2005
    Date of Patent: August 28, 2012
    Assignee: Panasonic Corporation
    Inventor: Takayuki Shirane
  • Publication number: 20120156572
    Abstract: Disclosed are an electrode active material for a power storage device and a power storage device including the same. The electrode active material includes a polymer that includes: a tetravalent group derived from a compound selected from the group consisting of EBDT and derivatives thereof, TTF and derivatives thereof, a condensation product of EBDT and TTF and derivatives thereof, and a TTF dimer and derivatives thereof; and a divalent group —S-A-S— where A is a divalent aliphatic group or a divalent group represented by the formula -E-D-E- where D represents a divalent alicyclic group, a divalent aromatic group, or a carbonyl group, and two Es each independently represent a divalent aliphatic group. Adjacent two tetravalent groups mentioned above are linked by one or two divalent groups mentioned above.
    Type: Application
    Filed: February 15, 2011
    Publication date: June 21, 2012
    Inventors: Nobuhiko Hojo, Yu Ohtsuka, Takafumi Tsukagoshi, Yohji Misaki
  • Patent number: 8148007
    Abstract: An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X1, X2, and X3 each independently represent O, S, or NR9; and R1, R2, R3, R4, R5, R6, R7, R8, and R9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: April 3, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok-soo Lee, Young-gyonn Ryu, Seung-sik Hwang, Dong-joon Lee, Boris A. Trofimov
  • Patent number: 8119286
    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.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: February 21, 2012
    Assignee: The Gillette Company
    Inventors: Nikolai Nikolaevich Issaev, Michael Pozin, Michael Dean Sliger, Eric Navok, Fred Joseph Berkowitz
  • Publication number: 20110287305
    Abstract: An electrochemical cell including at least one nitrogen-containing compound is disclosed. The at least one nitrogen-containing compound may form part of or be included in: an anode structure, a cathode structure, an electrolyte and/or a separator of the electrochemical cell. Also disclosed is a battery including the electrochemical cell.
    Type: Application
    Filed: May 24, 2011
    Publication date: November 24, 2011
    Applicant: SION CORPORATION
    Inventors: Chariclea Scordilis-Kelley, Joseph Kubicki, Shuguang Cao, Yuriy V. Mikhaylik
  • Patent number: 8026006
    Abstract: An organic electrolyte solution and a lithium battery using the same are provided. The organic electrolyte solution uses a monomer compound which can be electrografted, and which prevents crack formation caused by volumetric changes in the anode active material during battery charging/discharging. This improves charge/discharge characteristics, thereby improving the stability, reliability, and charge/discharge efficiency of the battery.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: September 27, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Sang-kook Mah, Jae-young Choi, Seok-soo Lee
  • Publication number: 20110195316
    Abstract: Disclosed is a lithium battery including: a positive electrode including manganese dioxide as a positive electrode active material; a negative electrode including at least one selected from lithium metal and a lithium alloy, as a negative electrode active material; a porous insulating member interposed between the positive electrode and the negative electrode; and an organic electrolyte. The organic electrolyte contains 0.0008 to 1.2% by weight of an alkyl ester of an aliphatic hydroxycarboxylic acid. The alkyl ester may be a C1-6 alkyl ester of an aliphatic hydroxycarboxylic acid having 2 to 7 carbon atoms, such as a C1-4 alkyl 4-hydroxybutyrate.
    Type: Application
    Filed: June 18, 2010
    Publication date: August 11, 2011
    Inventor: Kenichi Morigaki
  • Publication number: 20110195317
    Abstract: A solvent for a non-aqueous electrolytic solution providing a lithium secondary cell being specifically excellent in discharge capacity, rate characteristic and cycle characteristic and having improved incombustibility (safety), a non-aqueous electrolytic solution using the solvent, and further a lithium secondary cell are provided. The solvent for dissolving an electrolyte salt of a lithium secondary cell comprises at least one fluorine-containing solvent (I) selected from the group consisting of fluorine-containing ether, fluorine-containing ester and fluorine-containing chain carbonate, a fluorine-containing aromatic compound (II), in which a part or the whole of hydrogen atoms are replaced by fluorine atoms, and other carbonate (III), the non-aqueous electrolytic solution comprises the solvent and an electrolyte salt, and the lithium secondary cell uses the non-aqueous electrolytic solution.
    Type: Application
    Filed: July 29, 2009
    Publication date: August 11, 2011
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Meiten Koh, Hideo Sakata, Hitomi Nakazawa, Akiyoshi Yamauchi, Hiroyuki Arima
  • Patent number: 7985502
    Abstract: The present invention provides a lithium secondary battery having excellent battery characteristics such as battery cycling property, electrical capacity and storage property. The present invention relates to a nonaqueous electrolytic solution for lithium secondary batteries in which an electrolyte salt is dissolved in a nonaqueous solvent, the nonaqueous electrolytic solution comprising a formic ester compound having a specific structure in an amount of 0.01 to 10% by weight of the nonaqueous electrolytic solution, and a lithium secondary battery using the same.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: July 26, 2011
    Assignee: Ube Industries, Ltd.
    Inventors: Koji Abe, Kazuhiro Miyoshi, Takaaki Kuwata
  • Publication number: 20110143218
    Abstract: A battery includes an anode having an alkali metal as the active material, a cathode having, for example, iron disulfide as the active material, and an electrolyte containing lithium salts, such as lithium iodide and lithium hexafluorophosphate.
    Type: Application
    Filed: December 14, 2009
    Publication date: June 16, 2011
    Inventors: Nikolai N. Issaev, Michael Pozin, Michael D. Sliger
  • Patent number: 7879499
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; lithium salt; and difluoro oxalato borate and fluoro ethylene carbonate (FEC). The capacity retention property and durability of a lithium ion secondary battery including the electrolyte is excellent even when the battery is left at a high temperature.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: February 1, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinbum Kim, Jungkang Oh
  • Publication number: 20110008681
    Abstract: There is provided an electrolytic solution causing no phase separation even at low temperatures, being excellent in flame retardancy and noncombustibility, assuring high solubility of an electrolyte salt, having a high discharge capacity, being excellent in charge-discharge cycle characteristics and being suitable for electrochemical devices such as lithium ion secondary batteries.
    Type: Application
    Filed: September 12, 2008
    Publication date: January 13, 2011
    Inventors: Meiten Koh, Hitomi Nakazawa, Hideo Sakata, Michiru Tanaka, Akiyoshi Yamauchi, Aoi Nakazono
  • Patent number: 7858241
    Abstract: A nonaqueous electrolyte for a lithium secondary battery and a lithium secondary battery including the same are provided. In particular, the nonaqueous electrolyte comprises a compound of chemical formula 1 as an electrolyte additive: NC—(R1)n-A-(R2)m—CN??1 wherein, R1 and R2 represent, respectively, alkylene groups, n and m represent integers of 1 to 10, and A is an aromatic hydrocarbon in which the number of carbons is 5 to 9 or O. When the lithium secondary battery is kept at high voltage and temperature, the electrolyte additive reduces gas generation, thereby reducing battery swelling. Therefore, it is possible to reduce a battery thickness increment rate and to increase discharge capacity at a high temperature.
    Type: Grant
    Filed: June 12, 2008
    Date of Patent: December 28, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jinsung Kim, Jinbum Kim, Narae Park