Hetero Ring In The Organic Solvent Patents (Class 429/336)
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Patent number: 12077727Abstract: [Problem] To provide a semiconductor aqueous composition capable of preventing a pattern collapse and suppressing a bridge defect. [Means for Solution] A semiconductor aqueous composition comprising a single or plurality of surfactant(s) having a monovalent anion part represented by formula (I): Chain 1-X1—X2-Chain 2 (I) wherein, X1 and X2 are each independently —C(=0)- or —S(=0)2-, and Chain 1 and Chain 2 are each independently a linear or branched C1-20 alkyl, wherein one or more H in said C1-20 alkyl are replaced by F, and one or more methylenes in Chain 1 may be replaced by -0-, with the proviso that Chain 1 and Chain 2 may be bonded to form a ring structure) and a monovalent cation part other than hydrogen ion; and water.Type: GrantFiled: October 21, 2019Date of Patent: September 3, 2024Assignee: Merck Patent GmbHInventors: Kazuma Yamamoto, Maki Ishii, Tatsuro Nagahara
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Patent number: 11906382Abstract: A method for determining the amount of a gas present in a battery cell, whereby the battery cell has an initial volume, comprises at least the following steps: a) immersing the battery cell into a non-conductive liquid having a defined density at a first ambient pressure; b) generating a lifting force that acts in the opposite direction of a downforce of the battery cell; c) changing the first ambient pressure to a second ambient pressure, and measuring the buoyancy force—which is dependent on the ambient pressure—of the battery cell in the liquid; and d) measuring the amount of gas present in the battery cell, taking into account the first and second ambient pressures, the buoyancy forces ascertained for these ambient pressures, the temperature of the non-conductive liquid and the density of the liquid.Type: GrantFiled: July 13, 2021Date of Patent: February 20, 2024Assignee: VOLKSWAGEN AKTIENGESELLSCHAFTInventors: Björn Rumberg, Bernd Epding
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Patent number: 11489204Abstract: An electrolyte solution containing a solvent. The solvent contains a compound (1) represented by the following formula (1), wherein Ra, Rb, Rc, and Rd are the same as or different from each other, and are each —H, —F, —CH3, or —CF3; at least one of Ra, Rb, Rc, or Rd is —F or —CF3; and at least one of Ra, Rb, Rc, or Rd is —CH3, and a compound (2) represented by the following formula (2), wherein Re is a C1-C5 linear or branched alkyl or alkoxy group optionally containing an ether bond; Rf is a C1-C5 linear or branched alkyl group optionally containing an ether bond; and at least one of Re or Rf contains a fluorine atom. Also disclosed is an electrochemical device including the electrolyte solution, a lithium-ion secondary battery including the electrolyte solution and a module including the electrochemical device.Type: GrantFiled: January 26, 2018Date of Patent: November 1, 2022Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Shigeaki Yamazaki, Hiroyuki Arima, Kenzou Takahashi
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Patent number: 11325076Abstract: A battery and a method of fabricating a porous membrane are disclosed. The battery includes an anode, a cathode, and a battery separator. The battery separator is positioned between the anode and the cathode and includes a macroporous substrate and a mesoporous silica thin film (MSTF) with perpendicular mesopore channels. The MSTF is positioned on the macroporous substrate. The method includes the following steps. A polymer film is formed on a macroporous substrate. A MSTF with perpendicular mesopore channels is grown on the polymer film. The polymer film is removed to form the porous membrane.Type: GrantFiled: July 26, 2019Date of Patent: May 10, 2022Assignee: NATIONAL TAIWAN UNIVERSITYInventors: Chung-Yuan Mou, Jingling Yang, Heng-Liang Wu
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Patent number: 11296327Abstract: A positive electrode active material contains at least: fluorine in an amount not lower than 0.08 mass %; carbon in an amount not lower than 0.02 mass %; and lithium-metal composite oxide particles making up the remainder. The lithium-metal composite oxide particles contain nickel in an amount not lower than 60 mol % of the total amount of metallic elements. At least a partial amount of each of the fluorine and the carbon is present on surfaces of the lithium-metal composite oxide particles.Type: GrantFiled: March 13, 2019Date of Patent: April 5, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunimitsu Yamamoto, Yoshinari Makimura
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Patent number: 10913743Abstract: The present invention relates to the use of organic oxy imides as flame retardants for plastics. According to the present invention, a flame-retardant plastics composition is likewise specified, including an oxy imide as flame retardant. Additionally specified are mouldings produced from an inventive flame-retardant polymer composition.Type: GrantFiled: March 24, 2014Date of Patent: February 9, 2021Assignee: Fraunhofer-Gesellschaft zur förderung der angewandten Forschung e.V.Inventors: Rudolf Pfaendner, Elke Metzsch-Zilligen, Maria Stec
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Patent number: 10840531Abstract: A non-aqueous redox flow battery includes a catholyte including a compound of formula (I): wherein E1 and E2 are independently O, S, S?O, S(?O)2, Se, NR11, or PR11; The compounds of the present technology are capable of undergoing a reversible two-electron transfer process, thus leading to high efficiency of molecular design and an increase in the overall energy density.Type: GrantFiled: August 31, 2015Date of Patent: November 17, 2020Assignee: UCHICAGO ARGONNE, LLCInventors: Jinhua Huang, Lu Zhang, Anthony K. Burrell, Zhengcheng Zhang
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Patent number: 10644304Abstract: Disclosed is a method for activating a surface of metals, such as self-passivated metals, and of metal-oxide dissolution, effected using a fluoroanion-containing composition. Also disclosed is an electrochemical cell utilizing an aluminum-containing anode material and a fluoroanion-containing electrolyte, characterized by high efficiency, low corrosion, and optionally mechanical or electrochemical rechargeability. Also disclosed is a process for fusing (welding, soldering etc.) a self-passivated metal at relatively low temperature and ambient atmosphere, and a method for electrodepositing a metal on a self-passivated metal using metal-oxide source.Type: GrantFiled: March 31, 2015Date of Patent: May 5, 2020Assignee: Technion Research & Development Foundation LimitedInventors: Yair Ein-Eli, Danny Gelman, Boris Shvartsev, Alexander Kraytsberg
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Patent number: 10510494Abstract: An electrochemical storage device for storing and providing electrical energy by means of its electrical capacitance comprises an electrode comprising an electrode basis, a counter electrode arranged with a distance to the electrode and comprising a counter electrode basis, and an electrolyte arranged between the electrode and the counter electrode and separating the electrode from the counter electrode. The electrode on the electrode basis and the counter electrode on the counter electrode basis each comprise a surface-enlarging structure. The electrode basis and the counter electrode basis extend in a common contact plane of the electrode and the counter electrode, where they each comprise parts of a conductive contact layer arranged on a non-conductive substrate. Furthermore, a method of manufacturing such a storage device is described.Type: GrantFiled: November 13, 2017Date of Patent: December 17, 2019Assignee: DEUTSCHES ZENTRUM FUR LUFT-UND RAUMFAHRT E.V.Inventors: Thorsten Mahrholz, Sebastian Geier
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Patent number: 10418663Abstract: A metal-ion battery are provided. The disclosure provides a metal-ion battery. The metal-ion battery includes a positive electrode; a negative electrode, wherein the negative electrode is a metal or an alloy thereof, the metal is Cu, Fe, Zn, Co, In, Ni, Sn, Cr, La, Y, Ti, Mn, or Mo; a separator, wherein the positive electrode is separated from the negative electrode by the separator; and an electrolyte, disposed between the positive electrode and the negative electrode. The electrolyte includes ionic liquid, aluminum halide.Type: GrantFiled: May 17, 2017Date of Patent: September 17, 2019Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chien-Chih Chiang, Chun-Kai Lin, Kuang-Yao Chen, Chun-Hsing Wu
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Patent number: 9859583Abstract: The fundamental charge storage mechanisms in a number of currently studied high energy redox couples are based on intercalation, conversion, or displacement reactions. With exception to certain metal-air chemistries, most often the active redox materials are stored physically in the electrochemical cell stack thereby lowering the practical gravimetric and volumetric energy density as a tradeoff to achieve reasonable power density. In a general embodiment, a mediated redox flow battery includes a series of secondary organic molecules that form highly reduced anionic radicals as reaction mediator pairs for the reduction and oxidation of primary high capacity redox species ex situ from the electrochemical cell stack. Arenes are reduced to stable anionic radicals that in turn reduce a primary anode to the charged state. The primary anode is then discharged using a second lower potential (more positive) arene. Compatible separators and solvents are also disclosed herein.Type: GrantFiled: October 15, 2014Date of Patent: January 2, 2018Assignees: National Technology & Engineering Solutions of Sandia, LLC, UT-Battelle, LLCInventors: Frank M. Delnick, David Ingersoll, Chengdu Liang
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Patent number: 9548515Abstract: Provided are an electrolyte for a high-voltage lithium secondary battery and a high-voltage lithium secondary battery containing the same, and more particularly, an electrolyte for a high-voltage lithium secondary battery which may not be oxidized and decomposed at the time of being kept at a high voltage and a high temperature to prevent swelling of a battery through suppression of gas generation, thereby having excellent high-temperature storage characteristics and excellent discharge characteristics at a low temperature while decreasing a thickness increase rate of the battery, and a high-voltage lithium secondary battery containing the same.Type: GrantFiled: December 6, 2013Date of Patent: January 17, 2017Assignee: SK Innovation Co., LTD.Inventors: Jin Sung Kim, Yu Na Shim, Seong Il Lee, Jong Ho Lim
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Patent number: 9466853Abstract: Compositions and methods of making are provided for a high energy density aluminum battery. The battery comprises an anode comprising aluminum metal. The battery further comprises a cathode comprising a material capable of intercalating aluminum or lithium ions during a discharge cycle and deintercalating the aluminum or lithium ions during a charge cycle. The battery further comprises an electrolyte capable of supporting reversible deposition and stripping of aluminum at the anode, and reversible intercalation and deintercalation of aluminum or lithium at the cathode.Type: GrantFiled: September 28, 2011Date of Patent: October 11, 2016Assignees: UT-Battelle, LLC, Board of Regents, The University of Texas SystemInventors: Gilbert M. Brown, Mariappan Parans Paranthaman, Sheng Dai, Nancy J. Dudney, Arumugan Manthiram, Timothy J. McIntyre, Xiao-Guang Sun, Hansan Liu
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Patent number: 9455475Abstract: An electrolyte composition including a lithium salt (A), an first anion (B1) represented by formula (1), and an organic solvent (C) are provided. When the electrolyte composition is applied in a lithium battery, good structural stability, high battery efficiency, and long charge-discharge cycle life of the lithium battery can be achieved.Type: GrantFiled: May 25, 2014Date of Patent: September 27, 2016Assignee: National Taiwan University of Science and TechnologyInventors: Fu-Ming Wang, Sylvia Ayu Pradanawati
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Patent number: 9343776Abstract: An electrolyte for electrochemical device and the electrochemical device thereof. The electrolyte comprises 9.95˜19.95 wt % of a salt; 80.0˜90.0 wt % of a non-aqueous solvent; 0.05˜10.00 wt % of an additive comprising a compound represented by below formula (I) or (II): wherein X1, R1, and R4˜R10 is defined as herein. Besides, the present invention also provides a method for enhancing cycle life of electrochemical device which accomplished by adding above additive to an electrolyte of electrochemical device.Type: GrantFiled: January 18, 2012Date of Patent: May 17, 2016Assignee: Taiwan Hopax Chems. Mfg Co., Ltd.Inventors: Chia-Chin Chang, Li-Jane Her
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Patent number: 9224514Abstract: There is provided a cathode active material for a lithium ion battery having good battery properties. The cathode active material for a lithium ion battery is represented by a composition formula: LixNi1?yMyO2+?wherein M is one or more selected from Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B, and Zr; 0.9?x?1.2; 0<y?0.7; and ?>0.1, and has a moisture content measured by Karl Fischer titration at 300° C. of 1100 ppm or lower.Type: GrantFiled: September 21, 2012Date of Patent: December 29, 2015Assignee: JX Nippon Mining & Metals CorporationInventor: Kentaro Okamoto
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Patent number: 9224515Abstract: There is provided a cathode active material for a lithium ion battery having good battery properties. The cathode active material for a lithium ion battery is represented by a composition formula: Li(LixNi1-x-yMy)O2+? wherein M is one or more selected from Sc, Ti, V, Cr, Mn, Fe, Co, Cu, Zn, Ga, Ge, Al, Bi, Sn, Mg, Ca, B, and Zr; 0?x?0.1; 0<y?0.7; and ?>0, and has a moisture content measured by Karl Fischer titration at 300° C. of 1100 ppm or lower.Type: GrantFiled: September 21, 2012Date of Patent: December 29, 2015Assignee: JX Nippon Mining & Metals CoporationInventor: Kentaro Okamoto
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Patent number: 9206210Abstract: An ionic liquid including a phosphazene compound that has a plurality of phosphorus-nitrogen units and at least one pendant group bonded to each phosphorus atom of the plurality of phosphorus-nitrogen units. One pendant group of the at least one pendant group comprises a positively charged pendant group. Additional embodiments of ionic liquids are disclosed, as are electrolyte solutions and energy storage devices including the embodiments of the ionic liquid.Type: GrantFiled: October 5, 2011Date of Patent: December 8, 2015Assignee: BATTELLE ENERGY ALLIANCE, LLCInventors: Kevin L. Gering, Mason K. Harrup, Harry W. Rollins
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Publication number: 20150140450Abstract: An electrolyte solution including a non-aqueous organic solvent and a magnesium salt represented by Formula 1: wherein in Formula 1, groups CY1, CY2, A1 to A10, and variable n are defined in the specification.Type: ApplicationFiled: April 17, 2014Publication date: May 21, 2015Applicant: Samsung Electronics Co., Ltd.Inventors: Basab ROY, Dong-young KIM, Youn-hee LIM, Seok-soo LEE
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Publication number: 20150140449Abstract: Provided are a nonaqueous solvent containing a compound with high conductivity and low viscosity and a high-performance power storage device using the nonaqueous solvent. The power storage device includes an ionic liquid. The ionic liquid contains an anion and a cation having a five-membered heteroaromatic ring having one or more substituents. At least one of the substituents is a straight chain formed of four or more atoms and includes one or more of C, O, Si, N, S, and P.Type: ApplicationFiled: November 11, 2014Publication date: May 21, 2015Inventors: Jun ISHIKAWA, Satoshi SEO, Rie YOKOI, Hiroshi KADOMA, Tomoya HIROSE
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Publication number: 20150132665Abstract: 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: ApplicationFiled: January 20, 2015Publication date: May 14, 2015Inventors: Kyosuke ITO, Toru ITAKURA
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Patent number: 9017883Abstract: 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: GrantFiled: September 23, 2011Date of Patent: April 28, 2015Assignee: Samsung SDI Co., Ltd.Inventor: Su-Hee Han
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Patent number: 9005821Abstract: 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: GrantFiled: February 11, 2010Date of Patent: April 14, 2015Assignee: Sony CorporationInventors: Toru Odani, Tadahiko Kubota
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Publication number: 20150086879Abstract: An anode in which an anode active material layer is arranged on an anode current collector. The anode active material layer includes anode active material particles made of an anode active material including at least one of silicon and tin as an element. An oxide-containing film including an oxide of at least one kind selected from the group consisting of silicon, germanium and tin is formed in a region in contact with an electrolytic solution of the surface of each anode active material particle by a liquid-phase method such as a liquid-phase deposition method. The region in contact with the electrolytic solution of the surface of each anode active material particle is covered with the oxide-containing film, to thereby improve the chemical stability of the anode and the charge-discharge efficiency. The thickness of the oxide-containing film is preferably within a range from 0.1 nm to 500 nm both inclusive.Type: ApplicationFiled: December 2, 2014Publication date: March 26, 2015Inventors: Hiroyuki Yamaguchi, Hiroshi Horiuchi, Kenichi Kawase, Tadahiko Kubota, Hideki Nakai, Takakazu Hirose
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Publication number: 20150084604Abstract: 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: ApplicationFiled: September 26, 2013Publication date: March 26, 2015Applicant: EAGLEPICHER TECHNOLOGIES, LLCInventors: Ramanathan THILLAIYAN, Wujun FU, Mario DESTEPHEN, Greg MILLER, Ernest NDZEBET, Umamaheswari JANAKIRAMAN
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Publication number: 20150084603Abstract: An improved electrolyte including a strontium additive suitable for lithium-sulfur batteries, a battery including the electrolyte, and a battery including a separator containing a strontium additive are disclosed. The presence of the strontium additive reduces sulfur-containing deposits on the battery anode, thereby providing a battery with relatively high energy density and good partial discharge performance.Type: ApplicationFiled: September 26, 2013Publication date: March 26, 2015Applicant: EAGLEPICHER TECHNOLOGIES, LLCInventors: Ramanathan THILLAIYAN, Wujun FU, Mario DESTEPHEN, Greg MILLER
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Publication number: 20150079484Abstract: The present disclosure relates to additives for electrolytes and preparation of aluminum-based, silicon-based, and bismuth-based additive compounds that can be used as additives or solutes in electrolytes and test results in various electrochemical devices. The inclusion of these aluminum, silicon, and bismuth compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise unsuitable with current electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for Li-ion chemistries. The application of these compounds goes beyond Li-ion battery technology and covers any electrochemical device that employs electrolytes for the benefit of high energy density resultant from high operating voltages.Type: ApplicationFiled: September 17, 2013Publication date: March 19, 2015Applicant: U.S. Government as represented by the Secretary of the ArmyInventors: Arthur von Wald Cresce, Kang Conrad Xu
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Publication number: 20150079483Abstract: The present disclosure relates to several families of commercially available oxirane compounds that can be used as electrolyte co-solvents, solutes, or additives in non-aqueous electrolyte and their test results in various electrochemical devices. The presence of these compounds can enable rechargeable chemistries at high voltages. These compounds were chosen for their beneficial effect on the interphasial chemistries that occur at high potentials on the classes of 5.0V cathodes used in experimental Li-ion systems.Type: ApplicationFiled: September 16, 2013Publication date: March 19, 2015Applicant: U.S. Government as represented by the Secretary of the ArmyInventors: Arthur von Wald Cresce, Kang Conrad Xu
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Publication number: 20150072248Abstract: An alkali metal-sulfur-based secondary battery, in which coulombic efficiency is improved by suppressing a side reaction during charge, and a reduction in discharge capacity by repetition of charge and discharge is suppressed and which has a long battery life and an improved input/output density, includes a positive electrode or a negative electrode containing a sulfur-based electrode active material; an electrolyte solution containing an ether compound such as THF and glyme and a solvent such as a fluorine-based solvent, wherein at least a part of the ether compound and the alkali metal salt forms a complex; and a counter electrode.Type: ApplicationFiled: March 18, 2013Publication date: March 12, 2015Applicant: NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITYInventors: Masayoshi Watanabe, Kaoru Dokko, Naoki Tachikawa, Mizuho Tsuchiya, Kazuhide Ueno, Azusa Yamazaki, Kazuki Yoshida, Ryuji Harimoto, Risa Nozawa, Toshihiko Mandai, Ce Zhang, Jun-Woo Park, Yu Onozaki, Masao Iwaya
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Publication number: 20150050563Abstract: A new electrolytic solution system for lithium secondary batteries. Provided is a lithium secondary battery electrolytic solution containing a nonaqueous solvent and a lithium salt. The nonaqueous solvent is mixed at an amount of not more than 3 mol with respect to 1 mol of the lithium salt.Type: ApplicationFiled: March 25, 2013Publication date: February 19, 2015Applicant: THE UNIVERSITY OF TOKYOInventors: Yuki Yamada, Atsuo Yamada, Makoto Yaegashi, Haosheu Zhou, Fujun Li
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Publication number: 20150044573Abstract: 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: ApplicationFiled: February 27, 2013Publication date: February 12, 2015Inventors: 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
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Publication number: 20150030939Abstract: The invention relates to the use of lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate as a conductive salt in lithium-based energy stores and to electrolytes containing lithium-2-pentafluoroethoxy-1,1,2,2-tetrafluoro-ethanesulfonate.Type: ApplicationFiled: February 27, 2013Publication date: January 29, 2015Inventors: Marius Amereller, René Schmitz, Raphael Wilhelm Schmitz, Ansgar Romek Müller, Martin Winter, Christian Schreiner, Miriam Kunze, Stefano Passerini
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Patent number: 8940433Abstract: The present invention relates to an electrolyte solution comprising at least one solvent as component A, at least one electrolyte as component B and from 0.1 to 20% by weight, based on the total electrolyte solution, of at least one heteroaromatic compound of the general formula (I) as component C, the use of such a compound in electrolyte solutions, the use of such an electrolyte solution in an electrochemical cell or for metal plating, and also electrochemical cells comprising a corresponding electrolyte solution.Type: GrantFiled: December 13, 2010Date of Patent: January 27, 2015Assignee: BASF SEInventors: Xiao Steimle, Itamar Michael Malkowsky, Klaus Leitner
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Publication number: 20150024121Abstract: A process for producing a separator-electrolyte layer for use in a lithium battery, comprising: (a) providing a porous separator; (b) providing a quasi-solid electrolyte containing a lithium salt dissolved in a first liquid solvent up to a first concentration no less than 3 M; and (c) coating or impregnating the separator with the electrolyte to obtain the separator-electrolyte layer with a final concentration ?the first concentration so that the electrolyte exhibits a vapor pressure less than 0.01 kPa when measured at 20° C., a vapor pressure less than 60% of that of the first liquid solvent alone, a flash point at least 20 degrees Celsius higher than a flash point of the first liquid solvent alone, a flash point higher than 150° C., or no detectable flash point. A battery using such a separator-electrolyte is non-flammable and safe, has a long cycle life, high capacity, and high energy density.Type: ApplicationFiled: July 22, 2013Publication date: January 22, 2015Inventors: Hui He, Bor Z. Jang, Yanbo Wang, Aruna Zhamu
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Publication number: 20140377644Abstract: 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: ApplicationFiled: June 17, 2014Publication date: December 25, 2014Inventors: Jun ISHIKAWA, I, Rie YOKOI, Satoshi SEO, Toru ITAKURA, Sachiko KAWAKAMI, Kaori OGITA
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Publication number: 20140356733Abstract: 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: ApplicationFiled: May 5, 2014Publication date: December 4, 2014Applicant: 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
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Publication number: 20140356734Abstract: An electrolyte for a lithium ion secondary battery and a lithium ion secondary battery including the same are provide. The electrolyte includes a non-aqueous organic solvent, a lithium salt which is dissolved in the non-aqueous solvent and a additive shown as general formula I. Wherein R1, R2 and R3 are each independently selected from H, alkyl group including from 1 to 12 carbon atoms, cycloalkyl group including from 3 to 8 carbon atoms and aromatic group including 6 to 12 carbon atoms; n represents an integer from 0 to 7. This additive in electrolyte can passivate cathode and anode effectively, restrain their reaction with electrolyte, reduce gases generation and battery's expansion in high temperature surrounding, provide as safety lithium ion secondary batteries.Type: ApplicationFiled: May 31, 2013Publication date: December 4, 2014Inventors: Jianxun Ren, Chenghua Fu, Fenggang Zhao
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Patent number: 8895195Abstract: Disclosed is a non-aqueous electrolyte comprising: an acrylate compound; a sulfinyl group-containing compound; an organic solvent; and an electrolyte salt. Also, disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of an acrylate compound; and (ii) a reduced form of a sulfinyl group-containing compound. Further, disclosed is an electrochemical device comprising a cathode, an anode and a non-aqueous electrolyte, wherein (i) the non-aqueous electrolyte is the aforementioned non-aqueous electrolyte; and/or (ii) the cathode and/or the anode is the aforementioned electrode.Type: GrantFiled: October 19, 2007Date of Patent: November 25, 2014Assignee: LG Chem, Ltd.Inventors: Jeong-Ju Cho, Ho-Chun Lee, Su-Jin Yoon, Soo-Min Park
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Publication number: 20140342249Abstract: 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: ApplicationFiled: May 16, 2013Publication date: November 20, 2014Inventors: Hui He, Bor Z Jang, Yanbo Wang, Aruna Zhamu
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Publication number: 20140342245Abstract: One object is to provide a power storage device including an electrolyte using a room-temperature ionic liquid which includes a univalent anion and a cyclic quaternary ammonium cation having excellent reduction resistance. Another object is to provide a high-performance power storage device. A room-temperature ionic liquid which includes a cyclic quaternary ammonium cation represented by a general formula (G1) below is used for an electrolyte of a power storage device. In the general formula (G1), one or two of R1 to R5 are any of an alkyl group having 1 to 20 carbon atoms, a methoxy group, a methoxymethyl group, and a methoxyethyl group. The other three or four of R1 to R5 are hydrogen atoms. A? is a univalent imide anion, a univalent methide anion, a perfluoroalkyl sulfonic acid anion, tetrafluoroborate (BF4?), or hexafluorophosphate (PF6?).Type: ApplicationFiled: August 4, 2014Publication date: November 20, 2014Inventors: Kyosuke ITO, Toru ITAKURA
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Publication number: 20140342239Abstract: An electrolyte includes an eutectic mixture composed of (a) a hetero cyclic compound having a predetermined chemistry figure, and (b) an ionizable lithium salt. An electrochemical device having the electrolyte. The eutectic mixture included in the electrolyte exhibits inherent characteristics of an eutectic mixture such as excellent thermal stability and excellent chemical stability, thereby improving the problems such as evaporation, ignition and side reaction of an electrolyte caused by the usage of existing organic solvents.Type: ApplicationFiled: May 2, 2014Publication date: November 20, 2014Applicant: LG CHEM, LTD.Inventors: Byoung-Bae Lee, Jae-Seung Oh, Ji-Won Park, Shin-Jung Choi, Jae-Duk Park, Dong-Su Kim, Hyo-Jin Lee
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Publication number: 20140335426Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. A positive electrode charge potential is 3.7 V or less with respect to a lithium metal potential. The nonaqueous electrolyte includes a cyclic disulfone compound having a specific structure in an amount of 0.1 to 4.0% by mass based on a total mass of the nonaqueous electrolyte.Type: ApplicationFiled: October 10, 2012Publication date: November 13, 2014Applicant: GS Yuasa International Ltd.Inventors: Yudai Kawasoe, Katsushi Nishie
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Publication number: 20140315096Abstract: 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: ApplicationFiled: February 26, 2014Publication date: October 23, 2014Applicants: Universidade Federal de Minas Gerais, William Marsh Rice UniversityInventors: Raquel Silveira Borges, Kaushik Kalaga, Marco Tulio Fonseca Rodrigues, Hemtej Gullapalli, Leela Mohana Reddy Arava, Kaushik Balakrishnan, Glaura Goulart Silva, Pulickel M. Ajayan
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Patent number: 8865353Abstract: 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: GrantFiled: August 4, 2009Date of Patent: October 21, 2014Assignee: Ube Industries, Ltd.Inventors: Koji Abe, Masahide Kondo
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Publication number: 20140287327Abstract: The present invention provides a method of coating a substrate for a lithium secondary battery with inorganic particles, comprising charging the inorganic particles to form charged inorganic particles; transferring the charged inorganic particles on the substrate for a lithium secondary battery to form a coating layer; and fixing the coating layer with heat and pressure. Such a coating method according to one embodiment of the present invention uses electrostatic force without the addition of a solvent, and therefore, non use of a solvent can result in cost-reducing effects since there is no burden on the handling and storing of the solvent, and since a drying procedure after slurry coating is not needed, it allows for the preparation of a lithium secondary battery in a highly effective and rapid manner.Type: ApplicationFiled: June 9, 2014Publication date: September 25, 2014Inventors: Joo-Sung Lee, Jong-Hun Kim, Jeong-Min Ha, Bo-Kyung Ryu, Jin-Woo Kim
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Publication number: 20140242474Abstract: Disclosed is a high-capacity electrochemical energy storage device in which a conversion reaction proceeds as the oxidation-reduction reaction, and the separation (hysteresis) between the electrode potentials for oxidation and reduction is small. The electrochemical energy storage device includes a first electrode including a first active material, a second electrode including a second active material, and a non-aqueous electrolyte interposed between the first and second electrodes. At least one of the first and second active materials is a metal salt having a polyatomic anion and a metal ion, and the metal salt is capable of oxidation-reduction reaction involving reversible release and acceptance of the polyatomic anion.Type: ApplicationFiled: March 11, 2013Publication date: August 28, 2014Applicant: PANASONIC CORPORATIONInventors: Tooru Matsui, Zempachi Ogumi, Toshiro Hirai, Akiyoshi Nakata
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Publication number: 20140242473Abstract: Provided is an electrolyte solution for a magnesium battery, containing a mesoionic compound represented by the following general formula (1): (in general formula (1), R1 and R2 are each independently a C1-7 hydrocarbyl group or oxygen-containing hydrocarbyl group and X is O or S).Type: ApplicationFiled: February 27, 2014Publication date: August 28, 2014Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, National University Corporation Nagoya Institute Of TechnologyInventors: Tsunehisa HIRASHITA, Hirofumi NAKAMOTO
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Patent number: 8808918Abstract: The rechargeable lithium battery of the present invention includes a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte. The positive active material includes a core and a coating layer formed on the core. The core is made of a material such as LiCo0.98M?0.02O2, and the coating layer is made of a material such as MxPyOz. The electrolyte solution includes a nitrile-based additive. The rechargeable lithium battery of the present invention shows higher cycle-life characteristics and longer continuous charging time at high temperature.Type: GrantFiled: June 12, 2007Date of Patent: August 19, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Euy-Young Jung, Duck-Chul Hwang, Jeom-Soo Kim, Jong-Hwa Lee, Yong-Chul Park, Jae-Yul Ryu, So-Hyun Hur
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Publication number: 20140220417Abstract: 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: ApplicationFiled: February 12, 2014Publication date: August 7, 2014Applicant: UCHICAGO ARGONNE, LLCInventors: Gang CHENG, Daniel P. ABRAHAM
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Patent number: 8795904Abstract: A series of polar and aprotic organic molecules, which, when used as solvents or additives in nonaqueous electrolytes, afford improved performance for electrochemical cells that operate at high voltages. These polar and aprotic solvents or additives may contain at least one unsaturated functionality per molecule. The unsaturated functionality is conjugated with the polar functionality of the molecule. The unsaturated functionality that is either a double or triple bond could be between carbon-carbon, or between carbon-heteroatom, or between hetroatom-heteroatom. Nonaqueous electrolyte solutions are provided comprising one or more lithium salts dissolved in the mixture solvents, which comprises, in all possible ratios, at least one of the polar, aprotic and unsaturated solvent or additives, one or more cyclic carbonic diesters such as ethylene carbonate, and one or more acyclic carbonic diesters such as dimethyl carbonate, diethyl carbonate, and ethylmethyl carbonate.Type: GrantFiled: January 10, 2011Date of Patent: August 5, 2014Assignee: The United States of America as Represented by the Secretary of the ArmyInventor: Kang Conrad Xu