Oxygen Containing Organic Solvent Compound Patents (Class 429/341)
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Publication number: 20140255794Abstract: A composite material includes a porous organic polymer and an electrochemically active material, wherein the porous organic polymer contains a plurality of pores having a diameter of from about 0.1 nm to about 100 nm, and the electrochemically active material is disposed within the pores.Type: ApplicationFiled: March 7, 2013Publication date: September 11, 2014Applicant: UCHICAGO ARGONNE LLCInventors: Zhengcheng Zhang, Wei Weng, Shengwen Yuan, Khalil Amine
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Publication number: 20140255793Abstract: Functional electrolyte solvents include compounds having at least one aromatic ring with 2, 3, 4 or 5 substituents, at least one of which is a substituted or unsubstituted methoxy group, at least one of which is a tert-butyl group and at least one of which is a substituted or unsubstituted polyether or poly(ethylene oxide) (PEO) group bonded through oxygen to the aromatic ring, are provided.Type: ApplicationFiled: March 6, 2013Publication date: September 11, 2014Applicant: UCHICAGO ARGONNE, LLCInventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine
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Patent number: 8822086Abstract: The invention provides a solvent for an electrolyte solution, an electrolyte solution, and a gel-like electrolyte superior in oxidation resistance and flame resistance. A solvent for an electrolyte solution comprising at least one boric ester represented by the following formula (I), and a boric ester represented by the following formula (II): B(ORf)3 (I); B(OCH2CH2CN)3 (II) wherein, in formula (I), each Rf independently represents CH2(CF2)nCF3 or CH(CF3)2, n is an integer from 0 to 6, and at least a part of each of —ORf and —OCH2CH2CN included in the boric esters is transesterified.Type: GrantFiled: September 28, 2010Date of Patent: September 2, 2014Assignee: National University Corporation Shizuoka UniversityInventors: Tatsuo Fujinami, Yasutaka Tanaka, Yasutoshi Iriyama
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Publication number: 20140242472Abstract: 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: ApplicationFiled: May 14, 2014Publication date: August 28, 2014Applicant: LG Chem, Ltd.Inventors: Yu-Ha An, Doo Kyung Yang, Chul-Haeng Lee, Young-Min Lim, Jong-Ho Jeon
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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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Patent number: 8815449Abstract: A material (hereinafter referred to as “positive electrode material”) including sodium manganate powder as a positive electrode active material, carbon black powder as a conductive agent, and polytetrafluoroethylene as a binder is prepared. The positive electrode material is mixed in an N-methylpyrrolidone solution to produce slurry as a positive electrode mixture. A working electrode is produced by applying the slurry on a positive electrode collector. A negative electrode containing tin or germanium is produced. The non-aqueous electrolyte is produced by adding sodium hexafluorophosphate as an electrolyte salt in a non-aqueous solvent produced by mixing ethylenecarbonate and diethyl carbonate.Type: GrantFiled: January 20, 2006Date of Patent: August 26, 2014Assignee: Sanyo Electric Co., Ltd.Inventors: Takao Inoue, Masahisa Fujimoto, Kumiko Kanai
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Patent number: 8808915Abstract: The rechargeable lithium battery includes a positive electrode which includes a positive active material, a negative electrode, and an electrolyte which includes a non-aqueous organic solvent and a lithium salt. The positive active material includes a core including at least one of a compound represented by Formula 1 and a compound represented by Formula 2, and a surface-treatment layer which is formed on the core and includes a compound represented by Formula 3. The lithium salt includes LiPF6 and a lithium imide-based compound. LiaNibCocMndMeO2??(1) LihMn2MiO4??(2) M?xPyOz??(3) wherein each of M and M? is independently selected from the group consisting of an alkali metal, an alkaline-earth metal, a Group 13 element, a Group 14 element, a transition element, a rare earth element, and combinations thereof, 0.95?a?1.1, 0?b?0.999, 0?c?0.999, 0?d?0.999, 0.001?e?0.2, 0.95?h?1.1, 0.001?i?0.2, 1?y?4, 0?y?7, and 2?z?30.Type: GrantFiled: August 10, 2007Date of Patent: August 19, 2014Assignee: Samsung SDI Co., Ltd.Inventors: So-Hyun Hur, Euy-Young Jung, Duck-Chul Hwang, Yong-Chul Park, Jong-Hwa Lee, Jeom-Soo Kim, Jae-Yul Ryu, Jin-Bum Kim
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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: 20140220455Abstract: 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: ApplicationFiled: July 23, 2013Publication date: August 7, 2014Applicant: 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
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Patent number: 8795905Abstract: A family of electrolytes for use in a lithium ion battery. The genus of electrolytes includes ketone-based solvents, such as, 2,4-dimethyl-3-pentanone; 3,3-dimethyl 2-butanone(pinacolone) and 2-butanone. These solvents can be used in combination with non-Lewis Acid salts, such as Li2[B12F12] and LiBOB.Type: GrantFiled: June 30, 2009Date of Patent: August 5, 2014Assignee: Uchicago Argonne, LLCInventors: John Vaughey, Andrew N. Jansen, Dennis W. Dees
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Publication number: 20140212770Abstract: 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: ApplicationFiled: August 3, 2012Publication date: July 31, 2014Applicant: Ulbe industries, Ltd.Inventors: Koji Abe, Kei Shimamoto
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Publication number: 20140212771Abstract: The present invention relates to an electrode material for an electrical cell comprising activated carbon fibers as component (A) which have been impregnated with elemental sulfur as component (B). The present invention further relates to rechargeable electrical cells comprising at least one electrode which has been produced from or using the inventive electrode material and to a process for producing said inventive electrode material.Type: ApplicationFiled: August 14, 2012Publication date: July 31, 2014Applicant: BASF SEInventors: Arnd Garsuch, Alexander Panchenko, Doron Aurbach, Ran Elazari, Gregory Salitra
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Publication number: 20140205915Abstract: An electrolyte for a lithium secondary battery and a lithium secondary battery including the same are provided. The electrolyte includes a non-aqueous organic solvent, lithium salt, and an additive that is either a dicarboxylic acid anhydride and a halogenated ethylene carbonate or a diglycolic acid anhydride and a halogenated ethylene carbonate.Type: ApplicationFiled: March 19, 2014Publication date: July 24, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Jin Sung Kim, Ha Young Lee, Jinbum Kim, Yongshik Kim, Narae Park, Myungkuk Patk
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Publication number: 20140199601Abstract: 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: ApplicationFiled: July 6, 2012Publication date: July 17, 2014Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomohiro Onozuka, Shohei Fujimoto, Koji Fujita
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Publication number: 20140199599Abstract: Disclosed is an electrolyte for a rechargeable lithium battery including an organic solvent; a lithium salt; a flame retardant; and at least one acrylate compound having a fluorinated alkyl group. The electrolyte for a rechargeable battery may provide a rechargeable lithium battery having flame-retardant characteristics without decrease of cycle-life and battery performance.Type: ApplicationFiled: July 19, 2013Publication date: July 17, 2014Inventors: Jung-Yi YU, Woo-Cheol SHIN, Sang-IL HAN, Tae-Hyun BAE, Myung-Hwan JEONG, Sang-Geun KIM
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Publication number: 20140199602Abstract: A lithium battery including: a positive electrode including an overlithiated lithium transition metal oxide having a layered structure; a negative electrode including a silicon-based negative active material; and an electrolyte between the positive electrode and the negative electrode, the electrolyte including an electrolytic solution including a fluorinated ether solvent in an amount of 3 vol % or more based on the total volume of the electrolytic solution.Type: ApplicationFiled: March 14, 2013Publication date: July 17, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Myung-Hoon Kim, Man-Seok Han, Seung-Wan Kim, Jung-Yeon Won, Ha-Na Yoo
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Method for producing electrolyte solution for lithium ion battery and lithium ion battery using same
Patent number: 8771882Abstract: There is provided a method for producing an electrolyte solution for lithium ion batteries, in which lithium hexafluorophosphate is used as an electrolyte, comprising the steps of (a) reacting phosphorus trichloride, chlorine and lithium chloride in a nonaqueous organic solvent; and (b) reacting a reaction product of the step (a) formed in the solvent, with hydrogen fluoride.Type: GrantFiled: November 7, 2006Date of Patent: July 8, 2014Assignee: Central Glass Company, LimitedInventors: Keiji Sato, Meguru Oe -
Publication number: 20140186721Abstract: An electrolyte including an alkali metal salt; a polar aprotic solvent; and a triazinane trione; wherein the electrolyte is substantially non-aqueous.Type: ApplicationFiled: March 4, 2014Publication date: July 3, 2014Applicant: UCHICAGO ARGONNE, LLCInventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine
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Publication number: 20140186723Abstract: The present disclosure relates generally to the field of batteries and battery modules. More specifically, the present disclosure relates to battery cells that may be used in vehicular contexts, as well as other energy storage/expending applications. An electrolyte solution includes at least one ester solvent and a plurality of additives. In particular, the plurality of additives includes a cyclic carbonate-based additive, a sultone-based additive, and either a borate-based additive or an imide-based additive. The presently disclosed electrolyte solutions enable the manufacture of battery cells having a wide operating temperature range (e.g., between approximately ?30° C. and approximately 60° C.).Type: ApplicationFiled: December 19, 2013Publication date: July 3, 2014Applicant: Johnson Controls Technology CompanyInventors: Boutros Hallac, Patrick T. Hurley, Junwei Jiang, Zhenli Zhang
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Publication number: 20140178772Abstract: An electrolyte for a rechargeable lithium battery that includes a lithium salt and a non-aqueous organic solvent, wherein the non-aqueous organic solvent includes a fluoro-based solvent represented by the following Chemical Formula 1, and a rechargeable lithium battery including the same. R—O—R???Chemical Formula 1 In Chemical Formula 1, R and R? are independently a substituted or unsubstituted C1 to C6 alkyl group, or a substituted or unsubstituted C1 to C6 fluoroalkyl group, wherein at least one of R and R? is the substituted or unsubstituted C1 to C6 fluoroalkyl group, and a substitution ratio of fluoro in the fluoro-based solvent represented by the Chemical Formula 1 may range from more than about 0% to less than or equal to about 50%.Type: ApplicationFiled: March 15, 2013Publication date: June 26, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Myung-Hwan Jeong, Woo-Cheol Shin, Sang-Il Han, Jung-Yi Yu, Myung-Hoon Kim, Tae-Hyun Bae, Moon-Sung Kim, Min-Ju Lee, Sang-Geun Kim
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Publication number: 20140178771Abstract: The present invention discloses a new metal cyano-substituted benzimidazolide salt having formula (I) and its preparation. This new cyano-substituted benzimidazole derivatives exhibited excellent thermal stability. The organic salt of the present invention were soluble in an alkyl carbonate solvent, such as propylene carbonate (PC), dimethyl carbonate (DMC) and ethylene carbonate (EC)/DMC cosolvent. The non-aqueous electrolyte prepared by mixing the organic metal salt of the present invention with the alkyl carbonate solvent shows high conductivity and excellent electrochemical stability. The non-aqueous electrolyte is suitable for use in primary or secondary rechargeable batteries.Type: ApplicationFiled: December 23, 2013Publication date: June 26, 2014Applicant: NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Yaw-Terng Chern, Jyh-Long Jeng, Szu-Yuan Chen, An-Shing Wei, Bing-Joe Hwang
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Publication number: 20140178773Abstract: A magnesium compound represented by Formula 1 wherein the magnesium compound is dissolvable in an ether solvent, an electrolyte solution for magnesium batteries that includes the magnesium compound and a magnesium battery including the electrolyte solution are provided: wherein, in Formula 1, X1 is a halogen atom; and at least one of X2 and X3 each independently is an electron withdrawing group, wherein, when X2 or X3 is not an electron withdrawing group, X2 or X3 is a hydrogen atom, a C1-C20 alkyl group, or a C6-C20 aryl group.Type: ApplicationFiled: July 12, 2013Publication date: June 26, 2014Inventors: Young-gyoon RYU, Seok-soo LEE, Myung-jin LEE
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Publication number: 20140178739Abstract: Disclosed is a positive electrode for a rechargeable lithium battery that includes a positive active material including lithium-nickel cobalt manganese composite metal oxide, wherein the positive active material has an increase rate of a specific surface area of from about 66.4% to about 77.5% after pressing relative to a specific surface area of the positive active material before pressing, and the positive electrode has an active mass density of from about 2.514 g/cc to about 3.389 g/cc.Type: ApplicationFiled: March 14, 2013Publication date: June 26, 2014Applicant: SAMSUNG SDI CO., LTD.Inventor: Tae-Jin Jung
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Publication number: 20140178770Abstract: The Coulombic efficiency of lithium deposition/stripping can be improved while also substantially preventing lithium dendrite formation and growth using particular electrolyte compositions. Embodiments of the electrolytes include organic solvents and their mixtures to form high-quality SEI layers on the lithium anode surface and to prevent further reactions between lithium and electrolyte components. Embodiments of the disclosed electrolytes further include additives to suppress dendrite growth during charge/discharge processes. The solvent and additive can significantly improve both the Coulombic efficiency and smoothness of lithium deposition. By optimizing the electrolyte formulations, practical rechargeable lithium energy storage devices with significantly improved safety and long-term cycle life are achieved. The electrolyte can also be applied to other kinds of energy storage devices.Type: ApplicationFiled: February 27, 2014Publication date: June 26, 2014Inventors: Wu Xu, Ji-Guang Zhang, Yaohui Zhang, Xilin Chen
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Patent number: 8753776Abstract: A primary electrochemical cell and electrolyte incorporating a linear asymmetric ether is disclosed. The ether may include EME, used in combination with DIOX and DME, or have the general structural formula R1—O—CH2—CH2—O—R2 or R1—O—CH2—CH(CH3)—O—R2, where a total of at least 7 carbon atoms must be present in the compound, and R1 and R2 consist alkyl, cyclic, aromatic or halogenated groups but cannot be the same group (i.e., R1?R2).Type: GrantFiled: February 28, 2011Date of Patent: June 17, 2014Assignee: Eveready Battery Company, IncInventor: Weiwei Huang
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Patent number: 8753775Abstract: The present invention provides a lithium secondary battery having high-capacity as well as good cycle characteristics. The lithium secondary battery includes a positive electrode comprising a positive active material, a negative electrode comprising a negative active material and an electrolyte. The negative active material includes graphite particles combined to Si particulate. The electrolyte includes a solvent, a polyether modified silicone oil where a linear polyether chain is linked to a polysiloxane chain, and a solute comprising a lithium salt.Type: GrantFiled: January 13, 2012Date of Patent: June 17, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Takitaro Yamaguchi, Ryuichi Shimizu
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Publication number: 20140162143Abstract: It is an object of the present invention to provide an electrochemical device having an electrolytic solution having high current density and high oxidation resistance, as well as high safety, where dissolution and deposition of magnesium progress repeatedly and stably. The present invention relates to the electrolytic solution for an electrochemical device comprising (1) the supporting electrolyte composed of a magnesium salt and (2) at least one or more kinds of the compound represented by the following general formula [2], as well as the electrochemical device comprising said electrolytic solution, a positive electrode, a negative electrode and a separator.Type: ApplicationFiled: July 26, 2012Publication date: June 12, 2014Applicant: WAKO PURE CHEMICAL INDUSTRIES, LTD.Inventors: Tsutomu Watahiki, Takahiro Kiyosu, Kuniaki Okamoto
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Patent number: 8748043Abstract: 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: GrantFiled: April 14, 2008Date of Patent: June 10, 2014Assignee: Sion Power CorporationInventor: Yuriy V. Mikhaylik
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Publication number: 20140154591Abstract: In an aspect, an electrolyte that includes a lithium salt, an organic solvent, and an additive is disclosed.Type: ApplicationFiled: November 18, 2013Publication date: June 5, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Hokuto Yokotsuji, Hironari Takase
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Publication number: 20140154590Abstract: The invention relates to an electrolyte, comprising at least one lithium salt, a solvent, and at least one compound according to general formula (1). The invention further relates to lithium-based energy stores comprising such an electrolyte.Type: ApplicationFiled: August 2, 2012Publication date: June 5, 2014Applicant: WESTFALISCHE WILHELMS UNIVERSITAT MUNSTERInventors: Elisabeth Kramer, Rene Schmitz, Stefano Passerini, Martin Winter
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Publication number: 20140154589Abstract: In a method for preparing a cathode material for an alkali-sulfur cell, e.g., a lithium-sulfur cell, at least one polyacrilonitrile-sulfur composite material and elemental sulfur are mixed, in order to increase the voltage, the capacitance and the energy density.Type: ApplicationFiled: March 7, 2012Publication date: June 5, 2014Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jean Fanous
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Publication number: 20140154588Abstract: 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: ApplicationFiled: July 10, 2012Publication date: June 5, 2014Applicant: CORNELL UNIVERSITYInventors: Lynden A. Archer, Surya S. Moganty, Yingying Lu
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Patent number: 8741479Abstract: An electrolyte for a lithium secondary battery including a lithium salt, a nonaqueous organic solvent, and an additive, in which the additive is composed of one or more compounds including a purinone or a purinone derivative. The lithium secondary battery with improved life and high-temperature storage may be provided by using the electrolyte for a lithium secondary battery according to an embodiment of the present invention.Type: GrantFiled: March 28, 2012Date of Patent: June 3, 2014Assignee: Samsung Electronics Co., Ltd.Inventors: Yoon-sok Kang, Jun-young Mun, Min-sik Park, Jin-hwan Park, Mi-jeong Song
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Publication number: 20140147754Abstract: A magnesium battery electrolyte with a wide electrochemical window was developed. The electrolyte includes an organic boron magnesium salt and an aprotic polar solvent. The organic boron magnesium salt is an organic boron magnesium salt complex formed by compounding a Lewis acid with a boron center and a magnesium-containing Lewis base R?2-nMgXn, wherein n is 0 or 1, R and R? respectively represent a fluoroaryl group, an alkylated aryl group, an aryl group, an alkyl group, or a pyrrolidinyl group, and X represents a halogen. The solvent is an aprotic polar solvent such as ether or a mixed solvent thereof. The concentration of the electrolyte is 0.25 to 1 mol/L, and the electric conductivity is 0.5 to 10 mS/cm. The electrolyte allows reversible deposition/dissolution of magnesium, features good cycling stability, and has a wide electrochemical window (>3.0V vs.Mg/Mg2+).Type: ApplicationFiled: July 30, 2012Publication date: May 29, 2014Applicants: SHANGHAI JIAO TONG UNIVERSITY, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Jun Yang, Yongsheng Guo, Fan Zhang, Feifei Wang
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Patent number: 8734668Abstract: Described herein are materials for use in electrolytes that provide a number of desirable characteristics when implemented within batteries, such as high stability during battery cycling up to high temperatures high voltages, high discharge capacity, high coulombic efficiency, and excellent retention of discharge capacity and coulombic efficiency over several cycles of charging and discharging. In some embodiments, a high voltage electrolyte includes a base electrolyte and a set of additive compounds, which impart these desirable performance characteristics.Type: GrantFiled: October 5, 2012Date of Patent: May 27, 2014Assignee: Asahi Kasei Kabushiki KaishaInventors: Vinay Bhat, Gang Cheng, Steven Kaye, Bin Li, Risa Olugbile, Jen-Hsien Yang
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Publication number: 20140141342Abstract: The present invention relates to an electrolyte for a lithium secondary battery and a lithium secondary battery including the same, wherein the electrolyte comprises an organic solvent and an electrolyte additive, represented by chemical formula 1 and mixed lithium salts in the organic solvent so that room and high temperature life-time properties of the battery can be improved. Said chemical 1 is defined in the specification.Type: ApplicationFiled: July 12, 2012Publication date: May 22, 2014Inventors: Hyeong Kyu Lim, Hong Hie Lee, Eun Gi Shim, Jong Su Kim, Chang Sin Lee, Kyung Il Park, Hahn Mok Song
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Publication number: 20140141340Abstract: An electrolyte for a rechargeable lithium battery that includes a lithium salt and a non-aqueous organic solvent including a compound represented by the following Chemical Formula 1 is described: The compound represented by Chemical Formula 1 is included at greater than or equal to 0.001 volume % and less than 1 volume % based on a total volume of the non-aqueous organic solvent. A rechargeable lithium battery including the electrolyte is also described.Type: ApplicationFiled: March 1, 2013Publication date: May 22, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Vladimir Egorov, Woo-Cheol Shin, Pavel Alexandrovich Shatunov
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Patent number: 8728670Abstract: The invention provides a nonaqueous-electrolyte battery which has a positive electrode 3 including a positive active material, a negative electrode 4 including a negative active material having a lithium insertion/release potential higher than 1.0 V (vs. Li/Li+), and a nonaqueous electrolyte, wherein an organic compound having one or more isocyanato groups has been added to the nonaqueous electrolyte.Type: GrantFiled: August 22, 2008Date of Patent: May 20, 2014Assignee: Kabushiki Kaisha ToshibaInventors: Hiroki Inagaki, Norio Takami
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Publication number: 20140134501Abstract: This invention relates to electrolytic solutions and secondary batteries containing same. The electrolytic solutions contain (a) one or more ionic salts; (b) one or more non-aqueous solvents; (c) at least one solid electrolyte interphase former; (d) at least one fluorinated compound; and (e), optionally, at least one high temperature stability compound. Components (c), (d) and (e) are each different compounds and each are different from the ionic salts (a) and solvents (b).Type: ApplicationFiled: November 12, 2012Publication date: May 15, 2014Applicant: NOVOLYTE TECHNOLOGIES, INC.Inventors: Jing Li, Martin W. Payne
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Publication number: 20140134500Abstract: An anode and a battery, which have a high capacity and can improve battery characteristics such as large current discharge characteristics and low temperature discharge characteristics are provided. An anode has an anode current collector and an anode active material layer provided on the anode current collector. The density of the anode active material layer is in the range from 1.5 g/cm3 to 1.8 g/cm3. Further, the anode active material layer contains a granulated graphite material which is obtained by granulating a flat graphite particle in nodular shape and mesocarbon microbeads. Thereby, the granulated graphite material is prevented from being destroyed, and diffusion path of lithium ions is secured.Type: ApplicationFiled: January 17, 2014Publication date: May 15, 2014Applicant: SONY CORPORATIONInventor: Gentaro KANO
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Publication number: 20140134502Abstract: An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt; a nonaqueous organic solvent; and an additive composition, wherein the additive composition comprises at least one of a first compound of Formula 1 and a second compound of Formula 2: wherein A1, A2, C1 to C4, R1 to R4, X1 to X4, Y1 to Y4, Z1 to Z4, L1, L2, p, and q are defined in the specification.Type: ApplicationFiled: July 30, 2013Publication date: May 15, 2014Applicants: SAMSUNG FINE CHEMICALS CO., LTD., SAMSUNG SDI CO., LTD.Inventors: Yoon-sok KANG, Min-sik PARK, Jun-young MUN
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Patent number: 8722255Abstract: A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non-aqueous solvent. The non-aqueous electrolytic solution further contains a vinylene carbonate compound in an amount of 0.01 to 10 wt. %, and an alkyne compound in an amount of 0.01 to 10 wt. %.Type: GrantFiled: March 27, 2012Date of Patent: May 13, 2014Assignee: Ube Industries, Ltd.Inventors: Koji Abe, Kazuhiro Miyoshi, Takaaki Kuwata
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Publication number: 20140127589Abstract: The invention relates to a method for preparing a polyacrylonitrile-sulfur composite material, in which, polyacrylonitrile is converted to cyclized polyacrylonitrile, and the cyclized polyacrylonitrile is reacted with sulfur to form a polyacrylonitrile-sulfur composite material. By a separation of the preparation method into two partial reactions, the reaction conditions are advantageously able to be optimized for the respective reactions and a cathode material is able to be provided for alkali-sulfur cells with improved electrochemical properties. In addition, the invention relates to a polyacrylonitrile-sulfur composite material, a cathode material, an alkali-sulfur cell or an alkali-sulfur battery as well as to an energy store.Type: ApplicationFiled: March 7, 2012Publication date: May 8, 2014Inventors: Marcus Wegner, Jens Grimminger, Martin Tenzer, Jens Fanous
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Publication number: 20140127556Abstract: A lithium salt is disclosed. The lithium salt includes a lithium ion and an anion represented by formula (I), wherein R1 to R5 are independently selected from hydrogen atom, cyano group, fluorine atom, and C1-C5 alkyl group, in which the C1-C5 alkyl group is substituted with at least one fluorine atom. The present invention further provides an electrolyte solution and a lithium battery containing the lithium salt to enable a high conductivity of the battery at a high temperature.Type: ApplicationFiled: October 30, 2013Publication date: May 8, 2014Applicant: China Petrochemical Development Corporation, Taipei (Taiwan)Inventor: Fu-Ming Wang
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Patent number: 8715866Abstract: 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: GrantFiled: December 30, 2008Date of Patent: May 6, 2014Assignee: 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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Patent number: 8715863Abstract: 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: GrantFiled: March 22, 2007Date of Patent: May 6, 2014Assignee: Quallion LLCInventors: Zhengcheng Zhang, Phuong-Nghi Karen Lam, Mikito Nagata, Hisashi Tsukamoto
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Patent number: 8709665Abstract: A nonaqueous electrolyte of nonaqueous secondary battery contains a nitrile group-containing compound at a concentration of 0.05% by mass or more. A positive electrode active material has an average particle diameter of 4.5 to 15.5 ?m and a specific surface area of 0.13 to 0.80 m2/g. A positive electrode binder layer contains a silane coupling agent and/or at least one of aluminum, titanium, or zirconium based coupling agent having an alkyl or an alkoxy groups having 1 to 18 carbon atoms at a content of 0.003% by mass or more and 5% by mass or less. Thus nonaqueous secondary battery having a film resistance of the interface between a positive electrode and the electrolyte being less increased, and excellent ion conductivity and charge load characteristics in a low temperature environment is provided.Type: GrantFiled: December 10, 2010Date of Patent: April 29, 2014Assignee: SANYO Electric Co., Ltd.Inventor: Kentaro Takahashi
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Publication number: 20140113175Abstract: A lithium ion battery containing conducting materials comprises a positive electrode, a negative electrode, a separator, an electrolyte, adhesives and sealing materials. The conducting materials in the positive electrode comprise metal carbides, metal borides or metal nitrides. The conducting materials in the negative electrode comprise metal carbides, metal borides or metal nitrides. The metal carbide is titanium carbonitride, tungsten carbide or titanium carbide, vanadium carbide, tantalum carbide, and eutectic of tungsten carbide and titanium carbide. The metal boride is molybdenum boride, tungsten boride or vanadium boride. The metal nitride is titanium nitride, tungsten nitride or tantalum nitride. The conducting materials in the positive electrode may also comprise powdered metals. The conducting materials in the negative electrode comprise powdered metals. The powdered metal is nickel powder, copper powder or chromium powder.Type: ApplicationFiled: June 2, 2011Publication date: April 24, 2014Inventor: Panyi ZHANG
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Patent number: 8703345Abstract: Disclosed is an electrolyte. The electrolyte includes an amide compound and an ionizable lithium salt. The amide compound has a specific structure in which an amine group is substituted with at least one alkoxyalkyl group and at least one halogen atom is present. The electrolyte has good thermal and chemical stability, a low resistance and a high ionic conductivity. In addition, the electrolyte has a high upper limit of electrochemical window due to its improved oxidation stability. Therefore, the electrolyte can be useful for the fabrication of an electrochemical device. Further disclosed is an electrochemical device including the electrolyte.Type: GrantFiled: September 23, 2011Date of Patent: April 22, 2014Assignee: LG Chem, Ltd.Inventors: Byoung-Bae Lee, Jae-Seung Oh, Sang-Hyun Lee, Kwon-Young Choi, Dong-Su Kim, Yeon-Suk Hong, Hyo-Jin Lee
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Publication number: 20140106239Abstract: The invention relates to a lithium/sulphur accumulator including at least one unit cell including: a negative electrode; an electrode separator comprising a material soaked with electrolyte, said material comprising at least one nonwoven and having a porosity in the range from 50 to 96%, and a thickness in the range from 50 to 200 micrometers; a positive electrode; and wherein said electrolyte is introduced by an excess quantity, and comprises at least one lithium salt, and the excess quantity of electrolyte amounting to from 20 to 200% of the quantity of electrolyte ensuring the wetting of the electrodes and of the separator.Type: ApplicationFiled: December 13, 2013Publication date: April 17, 2014Applicant: Commissariat A L'Energie Atomique Et Aux Energies AlternativesInventors: Céline Barchasz, Sébastien PATOUX, Grégory SI LARBI