Sulfur Containing Organic Solvent Compound Patents (Class 429/340)
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Publication number: 20130164636Abstract: A hybrid energy storage device includes a positive electrode comprising open-structured carbonaceous materials and at least one lithium-containing inorganic compound characterized by LixAy(DtOz), wherein Li is lithium, A is a transition metal, D is selected from the group consisting of silicon, phosphorous, boron, sulfur, vanadium, molybdenum and tungsten, O is oxygen, and x, y, z, t are stoichiometric representation containing real numbers constrained by 0<x?4, 1?y?2, 1?t?3, 3?z?12, wherein y, t, and z are integers; a negative electrode; and a non-aqueous, lithium-containing electrolyte.Type: ApplicationFiled: July 31, 2012Publication date: June 27, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: JENN-YEU HWANG, LI-DUAN TSAI, CHUN-LUNG LI
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Publication number: 20130164602Abstract: An energy storage device including an active electrolyte, a first electrode and a second electrode is provided. The active electrolyte contains protons and ion pairs with a redox ability. The first electrode and the second electrode coexist in the active electrolyte and are separated from each other. The first electrode and the second electrode respectively include an active material producing a redox-reaction with the active electrolyte or an active material producing ion adsorption/desorption with the active electrolyte. The active electrolyte receives electrons from the first electrode and/or the second electrode so as to perform a redox-reaction for charge storage.Type: ApplicationFiled: July 30, 2012Publication date: June 27, 2013Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Li-Duan Tsai, Chung-Hsiang Chao, Jenn-Yeu Hwang, Chun-Lung Li
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Patent number: 8460821Abstract: A non-aqueous electrolyte secondary battery is described, capable of inhibiting the raise of the internal resistance at a low temperature after use in a high-temperature circumstance, and having a good power performance at a low temperature. The non-aqueous electrolyte secondary battery has a non-aqueous electrolyte, and is characterized in containing a sulfate ester with a specific structure in an amount of 4.0 wt % or less relative to the total weight of the non-aqueous electrolyte.Type: GrantFiled: June 27, 2011Date of Patent: June 11, 2013Assignee: GS Yuasa International Ltd.Inventors: Yudai Kawasoe, Katsushi Nishie, Tomonori Kako, Shinya Kitano
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Patent number: 8455142Abstract: 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: GrantFiled: April 7, 2009Date of Patent: June 4, 2013Assignee: NEC Energy Devices, Ltd.Inventors: Hitoshi Ishikawa, Yasutaka Kono, Koji Utsugi, Yoko Hashizume, Shinako Kaneko, Hiroshi Kobayashi
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Patent number: 8455143Abstract: A non-aqueous electrolyte solution for a lithium ion secondary battery includes a lithium salt and an organic solvent. The organic solvent includes a carbonate compound, a linear ester compound and a linear ester decomposition inhibitor. This non-aqueous electrolyte solution restrains swelling while improving low temperature charging/discharging characteristics of the secondary battery in comparison to a conventional electrolyte since it contains the linear ester compound and the linear ester decomposition inhibitor. The non-aqueous electrolyte solution may be used in making a lithium ion secondary battery.Type: GrantFiled: June 5, 2008Date of Patent: June 4, 2013Assignee: LG Chem, Ltd.Inventors: Ho-Chun Lee, Jong-Ho Jeon, Jeong-Ju Cho
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Publication number: 20130130126Abstract: Electrochemical cell for high-voltage operation and electrode coatings for the same. The electrochemical cell and electrode coatings of the present invention can preferably withstand charging voltages to at least 5-Volts. In one embodiment, the electrochemical cell can include an anode, a cathode, a separator, and an electrolyte, wherein the anode, the cathode, and the separator are operatively associated with the electrolyte. The cathode can include, for example, a mixture of a metal oxide, an elongated carbon structure, and a conductive material. The metal oxide can be, for example, a lithium-nickel-manganese oxide, such as LiNi0.5Mn1.5O4. The elongated carbon structure can be, for example, a carbon nanotube, a carbon fibril, or a carbon fiber. The conductive material can be, for example, a conductive carbon. The metal oxide, the elongated carbon structure, and the conductive material can be bound together, for example, with a binder.Type: ApplicationFiled: October 12, 2012Publication date: May 23, 2013Applicant: GINER, INC.Inventor: Giner, Inc.
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Patent number: 8445144Abstract: There is provided a lithium secondary battery which has excellent characteristics such as energy density and electromotive force and is excellent in cycle life and storage stability. An electrolyte solution for secondary battery comprising at least an aprotic solvent having an electrolyte dissolved therein and a compound represented by the general formula (1).Type: GrantFiled: December 15, 2004Date of Patent: May 21, 2013Assignee: NEC CorporationInventors: Koji Utsugi, Yuki Kusachi, Tsuyoshi Katou
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Patent number: 8435680Abstract: A rechargeable lithium battery including: a positive electrode including a nickel-based positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, a first fluoroethylene carbonate additive, a second vinylethylene carbonate additive, and a third alkane sultone additive, wherein when the battery is thicker than about 5mm, a mixing weight ratio of the first fluoroethylene carbonate additive to the second vinylethylene carbonate additive ranges from about 5:1 to about 10:1, or when the battery is thinner than about 5 mm, the mixing weight ratio of the first fluoroethylene carbonate additive to the second vinylethylene carbonate additive ranges from about 1:1 to about 4:1.Type: GrantFiled: June 29, 2010Date of Patent: May 7, 2013Assignee: Samsung SDI Co., Ltd.Inventors: Na-Rae Park, Jin-Sung Kim, Su-Hee Han, Jin-Hyunk Lim
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Publication number: 20130078532Abstract: An electrolyte includes a lithium salt; a polar aprotic solvent; a primary redox shuttle; and a lithium borate cluster salt. The lithium borate cluster salt may be compound of formula Li2B12X12-nHn, LixX10-nHn, where X is F, Cl, Br, or I; and n is an integer ranging from 0 to 12, inclusive.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Inventors: Zonghai Chen, Khalil Amine
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Publication number: 20130078530Abstract: According to one embodiment, a nonaqueous electrolyte battery includes a nonaqueous electrolyte, a positive electrode, a negative electrode and a separator. The nonaqueous electrolyte includes an asymmetric sulfone-based compound and a symmetric sulfone-based compound. The positive electrode includes a composite oxide represented by Li1?xMn1.5?yNi0.5?zMy+zO4 (0?x?1, 0?y+z?0.15, and M is at least one kind of element selected from the group consisting of Mg, Al, Ti, Fe, Co, Ni, Cu, Zn, Ga, Nb, Sn, Zr and Ta). The negative electrode includes a Ti-containing oxide which is capable of absorbing and releasing lithium. The separator includes a nonwoven fabric.Type: ApplicationFiled: July 27, 2012Publication date: March 28, 2013Inventors: Takashi KISHI, Norio TAKAMI, Takuya IWASAKI
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Patent number: 8404390Abstract: The present invention provides (1) a sulfone compounds having a propargyl group, (2) a nonaqueous electrolytic solution for lithium secondary batteries, which comprises an electrolyte salt dissolved in a nonaqueous solvent and contains a sulfone compound having a specific structure that has an SO2 group with a propargyl group or a vinyl group bonding thereto, in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution, and which can prevent gas generation and is excellent in battery characteristics such as cycle property and the like, and (3) a lithium secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains a sulfone compound having a specific structure, in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution.Type: GrantFiled: April 15, 2008Date of Patent: March 26, 2013Assignee: Ube Industries, Ltd.Inventors: Koji Abe, Kazuhiro Miyoshi, Yoshihiro Ushigoe, Manabu Takase, Kazuyuki Kawabe
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Patent number: 8389162Abstract: An electrolyte for a rechargeable lithium battery that includes a non-aqueous organic solvent, a lithium salt, and an electrolyte additive. The electrolyte additive includes 2 to 6 wt % of succinonitrile, 2 to 6 wt % of alkane sultone, and 1 to 3 wt % of vinylethylene carbonate based on the total weight of the electrolyte.Type: GrantFiled: September 15, 2009Date of Patent: March 5, 2013Assignee: Samsung SDI Co., Ltd.Inventors: Duck-Chul Hwang, Sang-Min Lee, Kyoung-Han Yew, Sang-Jin Kim
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Publication number: 20130052543Abstract: A secondary battery capable of improving cycle characteristics, conservation characteristics, and load characteristics is 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 an electrolytic solution. The electrolytic solution includes one or more of a dicarbonic ester compound, a dicarboxylic compound, a disulfonic compound, a monofluoro lithium phosphate, and difluoro lithium phosphate and one or more of fluorinated lithium phosphate, fluorinated lithium borate, and imide lithium.Type: ApplicationFiled: December 2, 2010Publication date: February 28, 2013Applicant: Sony CorporationInventors: Masayuki Ihara, Yuko Hayakawa, Tadahiko Kubota
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Patent number: 8383276Abstract: An organic electrolyte solvent includes a compound of the formula: R1—SO2—NR2—OR3 wherein R1 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives and perfluorinated analogues; R2 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives; R3 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives wherein the electrolyte solvent is stable at voltages of greater than 4.0 volts.Type: GrantFiled: June 24, 2010Date of Patent: February 26, 2013Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Synthonix CorporationInventors: John Muldoon, Gary Allred, Anthony Dotse
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Patent number: 8377597Abstract: A secondary battery capable of improving the cycle characteristics and the storage characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution contains a solvent contains a sulfone compound having a structure in which —S(?O)2—S—C(?O)— bond is introduced to a benzene skeleton and an ester carbonate halide.Type: GrantFiled: March 5, 2009Date of Patent: February 19, 2013Assignee: Sony CorporationInventors: Masayuki Ihara, Hiroyuki Yamaguchi, Tadahiko Kubota
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Publication number: 20130040209Abstract: A non-aqueous electrolyte solution containing a cyclic sulfone compound having a 1,3-dithietane-1,1,3,3-tetraoxide structure is provided. The cyclic sultone compound is preferably a compound represented by formula (I) [wherein in formula (I), R1 to R4 each represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, or the like].Type: ApplicationFiled: April 25, 2011Publication date: February 14, 2013Applicant: MITSUI CHEMICALS, INC.Inventors: Shigeru Mio, Mitsuo Nakamura, Hidenobu Nogi, Takashi Hayashi, Takeshi Kobayashi
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Patent number: 8372550Abstract: The present invention provides a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound, as well as an electrochemical device comprising the cathode. Also, the present invention provides an electrochemical device comprising: (1) a cathode having a protection layer formed by a complex between the surface of a cathode active material and an aliphatic nitrile compound; (2) an anode having a passivation layer formed by a compound selected from the group consisting of vinylene carbonate, its derivative and an ether compound; and (3) an electrolyte solution containing a lithium salt and a solvent.Type: GrantFiled: January 14, 2005Date of Patent: February 12, 2013Assignee: LG Chem, Ltd.Inventors: Young Soo Kim, Soon Ho Ahn
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Publication number: 20130029232Abstract: A lithium ion secondary battery includes a positive electrode, a negative electrode, a separator and an ionic liquid electrolyte. The separator is a polar porous membrane. The ionic liquid electrolyte and the separator made of the polar porous are used in the lithium ion secondary batteries, which can improve the electrochemical performance of the lithium ion secondary batteries.Type: ApplicationFiled: July 25, 2012Publication date: January 31, 2013Applicant: Microvast New Materials (Huzhou) Co., LTD.Inventors: ZHUOQUN ZHENG, Bin Gu, Hong Wang, Liaoying Ke, Yunhua Nie
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Patent number: 8357471Abstract: There is provided a lithium secondary battery which has excellent characteristics such as energy density and electromotive force and is excellent in cycle life and storage stability. An electrolyte solution for secondary battery comprising at least an aprotic solvent having an electrolyte dissolved therein and a compound represented by the general formula (1).Type: GrantFiled: October 17, 2011Date of Patent: January 22, 2013Assignee: NEC CorporationInventors: Koji Utsugi, Yuki Kusachi, Tsuyoshi Katou
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Publication number: 20130011747Abstract: There is provided a lithium ion secondary battery excellent in cycle characteristics in which the conductivity of an electrode using a graphite material which is less deformed and oriented by pressurization is improved. A negative electrode mixture which includes at least a negative electrode active material comprising graphite as a main component, a binder, and a conductive aid has a ratio of a peak intensity of a (002) plane to a peak intensity of a (110) plane in an X-ray diffraction spectrum of 30 or more and 70 or less, the spectrum being measured after the negative electrode mixture is pressed at 98 MPa (1000 kgf/cm2), and the conductive aid includes carbon black having a DBP absorption (cm3/100 g) of 250 or more and 500 or less.Type: ApplicationFiled: March 18, 2011Publication date: January 10, 2013Applicant: NEC ENERGY DEVICES, LTD.Inventors: Hideaki Sasaki, Takehiro Noguchi
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Publication number: 20130004861Abstract: A non-aqueous electrolyte additive for a lithium secondary battery, a non-aqueous electrolyte, and a lithium secondary battery including the same, the additive including dicyanoacetylene or a cyano group-containing unsaturated compound represented by the following Chemical Formula 1, the cyano group-containing unsaturated compound including an unsaturated bond and two or more cyano groups linked in cis- or trans-positions of carbons of the unsaturated bond.Type: ApplicationFiled: January 26, 2012Publication date: January 3, 2013Inventors: Jung-Yi YU, Woo-Cheol SHIN, Sang-Il HAN, Mi-Hyun LEE, Tae-Hyun BAE
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Publication number: 20130004860Abstract: A quaternary ammonium salt of the formula (1), a composition containing the quaternary ammonium salt and an organic solvent, and an electrochemical device using the salt wherein R1 and R2 are both methyl and X? is BF4? or N(CF3SO2)2?.Type: ApplicationFiled: September 13, 2012Publication date: January 3, 2013Inventors: Tetsuo NISHIDA, Yasutaka Tashiro, Megumi Tornisaki, Masashi Yamamoto, Kazutaka Hirano, Akihiro Nabeshima, Hiroaki Tokuda, Kenji Sato, Takashi Higono
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Publication number: 20120315551Abstract: 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: ApplicationFiled: April 30, 2012Publication date: December 13, 2012Applicant: WILDCAT DISCOVERY TECHNOLOGIES, INC.Inventors: Vinay V. BHAT, Gang CHENG, Steven KAYE, Bin LI, Risa OLUGBILE, Jen Hsien YANG
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Publication number: 20120315553Abstract: A non-aqueous liquid electrolyte secondary battery, including a cathode, an anode and a non-aqueous liquid electrolyte present between the cathode and the anode. The non-aqueous liquid electrolyte secondary battery has a closed structure in which the cathode, the anode and the non-aqueous liquid electrolyte are insulated from at least carbon dioxide and water. The non-aqueous liquid electrolyte secondary battery has a discharge voltage of 3V or less relative to a Li/Li+ reference electrode. The non-aqueous liquid electrolyte includes two or more kinds of anions, and a non-aqueous liquid electrolyte for the non-aqueous liquid electrolyte secondary battery.Type: ApplicationFiled: February 22, 2010Publication date: December 13, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Fuminori Mizuno, Hirofumi Nakamoto, Kenichi Hamamoto
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Publication number: 20120315549Abstract: 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: ApplicationFiled: November 16, 2009Publication date: December 13, 2012Inventors: 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
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Patent number: 8323839Abstract: A nonaqueous electrolyte secondary battery in which the decomposition of an electrolyte solution is reduced exhibits high coulombic efficiency and excellent charge and discharge cycle performance, and has high energy density. This nonaqueous electrolyte secondary battery includes a negative electrode that is formed by depositing a thin film of active material on a collector by a CVD method, sputtering, evaporation, thermal spraying, or plating, wherein the thin film of the active material can lithiate and delithiate and is divided into columns by cracks formed in the thickness direction, and the bottom of each column is adhered to the collector; a positive electrode that can lithiate and delithiate; and a nonaqueous electrolyte solution containing a lithium salt in a nonaqueous solvent. The electrolyte solution contains a compound expressed by a general formula (I).Type: GrantFiled: September 26, 2005Date of Patent: December 4, 2012Assignees: SANYO Electric Co., Ltd., Mitsubishi Chemical CorporationInventors: Noriyuki Tamura, Toshikazu Yoshida, Maruo Kamino, Shin Fujitani, Masahiro Takehara, Makoto Ue
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Publication number: 20120276456Abstract: Electrolyte, comprising an aprotic solvent, a lithium salt as conducting salt, and an additive, characterized in that the additive is a compound which contains a protonable nitrogen atom and is hydrolysable by water.Type: ApplicationFiled: August 27, 2010Publication date: November 1, 2012Applicant: LI-TEC BATTERY GMBHInventors: Peter Pilgram, Rolf-Walter Terwonne, Denny Thiemig, Joerg Kaiser, Andreas Gutsch
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Patent number: 8298709Abstract: A secondary battery capable of improving the cycle characteristics while securing the initial charge and discharge characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. The anode has an anode active material layer containing a plurality of anode active material particles having silicon (Si). The anode active material layer contains at least one of an oxide-containing film covering a surface of the anode active material particles and a metal material not being alloyed with an electrode reactant provided in a gap in the anode active material layer. The electrolytic solution contains a solvent containing an organic acid that has a portion including an electron attractive group such as —(O?)C—C(?O)— bond in the center and a hydroxyl group on the both ends.Type: GrantFiled: March 10, 2009Date of Patent: October 30, 2012Assignee: Sony CorporationInventors: Masayuki Ihara, Hiroyuki Yamaguchi, Tadahiko Kubota
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Patent number: 8288040Abstract: A battery that includes a cathode, anode and an electrolytic solution containing an organic electrolyte solvent including a compound of the formula: R1—CO—NR2—OR3 wherein R1 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives and perfluorinated analogues; R2 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives; R3 is selected from alkanes, alkenes, alkynes, aryls and their substituted derivatives wherein the electrolyte is stable at voltages of greater than 4.0 volts.Type: GrantFiled: February 17, 2009Date of Patent: October 16, 2012Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Motor Corporation, Synthonix CorporationInventors: John Muldoon, Gary Allred, Scott Ankeney, Masaki Matsui, Anthony Dotse, Tsuyoshi Sugimoto
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Patent number: 8277972Abstract: A non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt and a carbonate organic solvent. The non-aqueous electrolyte solution further includes a fluoro group-containing sulphonate compound expressed by Chemical Formula 1. When the non-aqueous electrolyte solution is employed for a lithium secondary battery, low-temperature discharging characteristics and life cycle characteristics are greatly improved. Also, even though a battery is stored at a high temperature in a fully-charged state or a charging/discharging process is under progress, the decomposition reaction of a carbonate-based organic solvent is restrained, thereby solving the swelling problem and improving high-temperature life cycle characteristics.Type: GrantFiled: March 9, 2009Date of Patent: October 2, 2012Assignee: LG Chem, Ltd.Inventors: Jong-Ho Jeon, Jeong-Ju Cho, Ho-Chun Lee
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Patent number: 8277973Abstract: A nonaqueous electrolyte composition containing an electrolyte salt, a nonaqueous solvent and a compound having a phosphorus-hydrogen bond or a phosphorus-carbon bond is provided. Also provided is a nonaqueous electrolyte secondary battery including: a cathode and an anode having a material capable of occluding and releasing lithium ions as a cathode active material and an anode active material, respectively; a nonaqueous electrolyte composition; a separator; and an outer package member for housing the anode, the cathode, the nonaqueous electrolyte composition and the separator. The nonaqueous electrolyte composition includes an electrolyte salt, a nonaqueous solvent and a compound having a phosphorus-hydrogen bond or a phosphorus-carbon bond.Type: GrantFiled: June 14, 2007Date of Patent: October 2, 2012Assignee: Sony CorporationInventor: Atsumichi Kawashima
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Patent number: 8273483Abstract: A primary cell having an anode comprising lithium or lithium alloy and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt preferably lithium iodide (LiI) dissolved in an organic solvent mixture. The solvent mixture preferably comprises dioxolane, dimethoxyethane and sulfolane. The electrolyte typically contains between about 100 and 2000 parts by weight water per million parts by weight (ppm) electrolyte therein. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.Type: GrantFiled: February 14, 2008Date of Patent: September 25, 2012Assignee: The Gillette CompanyInventors: Michael Pozin, Michael Sliger, Nikolai N. Issaev
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Publication number: 20120225359Abstract: This invention described the preparation of a series of compounds selected from the group comprising tris(1,1,1,3,3,3-hexafluoro-iso-propyl)phosphate, tris(perfluoroethyl)phosphate, tris(perfluoro-iso-propyl)phosphate, bis(1,1,1-trifluoroethyl)fluorophosphate, tris(1,1,1-trifluoroethyl)phosphate, hexakis(1,1,1-trifluoroethoxy)phosphazene, tris(1,1,1-trifluoroethoxy)trifluorophosphazene, hexakis(perfluoro-t-butyl)phosphazene and tris(perfluoro-t-butyl)phosphate. These compounds may be used as co-solvents, solutes or additives in non-aqueous electrolytes in various electrochemical devices. The inclusion of these compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise impossible with state-of-the-art electrolyte technologies. These compounds are chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for new Li ion chemistries.Type: ApplicationFiled: April 13, 2012Publication date: September 6, 2012Applicant: U.S. Government as represented by the Secretary of the ArmyInventors: Kang Conrad Xu, Arthur von Wald Cresce
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Patent number: 8257615Abstract: An electrolyte composition includes an ionic liquid and a solvent, wherein the solvent contains a material made of at least one of sulfolane and derivatives thereof, and a content of the material is 5 to 40 mass % of the total content of the electrolyte composition.Type: GrantFiled: May 27, 2010Date of Patent: September 4, 2012Assignee: Fujikura Ltd.Inventors: Hiroshi Matsui, Kenichi Okada, Takayuki Kitamura
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Patent number: 8252465Abstract: Disclosed is an electrolyte for a lithium secondary battery. The electrolyte includes a non-aqueous solvent and a sulfone based organic compound represented by the following Formulae (I), (II), or (III), or a mixture thereof: where R and R? are independently selected from the group consisting of primary alkyl groups, secondary alkyl groups, tertiary alkyl groups, alkenyl groups, aryl groups; halogen substituted primary alkyl groups, halogen substituted secondary alkyl groups, halogen substituted tertiary alkyl groups, halogen substituted alkenyl groups, and halogen substituted aryl groups, and n is from 0 to 3.Type: GrantFiled: November 18, 2003Date of Patent: August 28, 2012Assignees: Samsung SDI Co., Ltd., Ukseung Chemical Co., Ltd.Inventors: Jin-Sung Kim, Jong-Wook Lee, Kwang-Sik Kim, Young-Gyu Kim, Je-Yun Kim, Jong-Seob Kim, Meen-Seon Paik, Hak-Soo Kim
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Publication number: 20120208092Abstract: An amorphous anode active material, a preparation method of an electrode using the same, a secondary battery containing the same, and a hybrid capacitor are provided. The amorphous anode active material includes at least one of a metal oxide or a metal phosphate, and the metal oxide or the metal phosphate is amorphous. The metal oxide has the form of MOx (0<X?3). M is at least one of molybdenum (Mo), vanadium (V), scandium (Sc), titanium (Ti), chromium (Cr), yttrium (Y), zirconium (Zr), niobium (Nb) and tungsten (W). The metal phosphate has the form of AxBy(PO4) (0?x?2, 0<y?2). A is at least one of lithium (Li), sodium (Na) and potassium (K), and B is at least one of molybdenum (Mo), vanadium (V), scandium (Sc), titanium (Ti), chromium (Cr), yttrium (Y), zirconium (Zr), niobium (Nb) and tungsten (W).Type: ApplicationFiled: August 12, 2010Publication date: August 16, 2012Applicant: SNU R&DB FOUNDATIONInventors: Jun-Hwan Ku, Kyung-Jin Park, Ji-Sun Kim, Ji-Heon Ryu, Seung-Mo Oh
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Patent number: 8241787Abstract: The principal object of the present invention is to provide a liquid electrolyte for electrochemical device having a wide potential window. The invention solves the problem by providing a liquid electrolyte for electrochemical device, which comprises an electrolyte dissolved in an MFx complex being liquid at ordinary temperatures wherein “M” represents B, Si, P, As or Sb and “X” represents the valence of “M”.Type: GrantFiled: September 13, 2007Date of Patent: August 14, 2012Assignees: National University Corporation Shizuoka University, Toyota Jidosha Kabushiki KaishaInventors: Tatsuo Fujinami, Takahiro Aoki, Masaki Matsui
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Patent number: 8241795Abstract: A battery capable of improving the storage characteristics and the cycle characteristics is provided. The battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution is impregnated in a separator provided between the cathode and the anode. A solvent of the electrolytic solution contains a given sulfone compound such as bis(trimethylsilyl)-2,2-difluorosulfoacetate. Compared to a case that a solvent does not contain the foregoing sulfone compound, the chemical stability of the electrolytic solution is improved, and the decomposition reaction of the electrolytic solution is suppressed.Type: GrantFiled: October 30, 2007Date of Patent: August 14, 2012Assignee: Sony CorporationInventors: Masayuki Ihara, Hiroyuki Yamaguchi, Tadahiko Kubota
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Publication number: 20120189919Abstract: Disclosed are a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which contains a sulfonate compound having a specific structure in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution, and an electrochemical device containing the nonaqueous electrolytic solution. The nonaqueous electrolytic solution is excellent in the effect of improving the storage property of primary batteries and improving the cycle property of secondary batteries in use thereof at high temperatures and the low-temperature property thereof after high-temperature cycles.Type: ApplicationFiled: August 12, 2010Publication date: July 26, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Koji Abe, Kazuhiro Miyoshi, Kazuyuki Kawabe
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Publication number: 20120189921Abstract: A chemical source of electrical energy may include a positive electrode (cathode) made of an electrically conductive material, a mixture of lithium sulphide and sulphur, a permeable separator or membrane, and a negative electrode (anode) made of an electrically conductive material or a material that is able reversibly to intercalate lithium ions, wherein an aprotic electrolyte comprising at least one lithium salt in at least one solvent is provided between the electrodes.Type: ApplicationFiled: April 2, 2012Publication date: July 26, 2012Inventors: Vladimir Kolosnitsyn, Elena Karaseva
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Patent number: 8227116Abstract: A lithium secondary battery which has excellent characteristics such as energy density and electromotive force and is excellent in cycle life and storage stability is provided. The secondary battery comprises a positive electrode, a negative electrode, and an electrolyte solution comprising an aprotic solvent having at least an electrolyte dissolved therein, wherein the positive electrode comprises a lithium-manganese composite oxide having a spinel structure as a positive electrode active material, and the electrolyte solution comprises a compound represented by the general formula (1).Type: GrantFiled: December 14, 2004Date of Patent: July 24, 2012Assignee: NEC CorporationInventors: Daisuke Kawasaki, Yuki Kusachi, Tatsuji Numata, Koji Utsugi
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Publication number: 20120177980Abstract: The gas generation and the decrease in battery capacity during high temperature storage of a lithium secondary battery are suppressed. The electrolyte contains a polymerizable compound or a polymer, the polymerizable compound contains a compound having an aromatic functional group and a polymerizable functional group and a compound having a complex-forming functional group forming a complex with a metal ion and a polymerizable functional group, and the polymer has the complex-forming functional group, the aromatic functional group and a residue of the polymerizable functional group.Type: ApplicationFiled: August 25, 2011Publication date: July 12, 2012Inventors: Norio IWAYASU, Jinbao Zhao, Hidetoshi Honbou, Yuki Okuda
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Patent number: 8216725Abstract: Electrolyte for lithium secondary batteries and battery packs includes a lithium salt, a non-aqueous solvent, and an additive. The additive includes two or more members selected from the group consisting of substances A, B and C, wherein A includes one or more fused ring compounds and fused heterocyclic compounds, B includes an alkoxy aromatic compound, and C includes halogenated borane-based salt.Type: GrantFiled: January 13, 2009Date of Patent: July 10, 2012Assignee: BYD Company LimitedInventors: Yi Gao, JiangMin Zhu
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Publication number: 20120171577Abstract: An electrolytic solution including: a magnesium salt; a non-aqueous organic solvent; and an anion receptor, wherein the anion receptor comprises at least one compound selected from the group consisting of compounds represented by Formulae 1 and 2 below: where A, m, p1, P2, P3, q1, RA, Ra, R1 through R6, and Ry are the same as described in the detailed description section.Type: ApplicationFiled: June 10, 2011Publication date: July 5, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Young-gyoon Ryu, Sang-ho Park, Myung-dong Cho, Young-min Choi, Seok-soo Lee
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Publication number: 20120171581Abstract: Disclosed are a nonaqueous electrolytic solution of an electrolyte dissolved in a nonaqueous solvent, which contains a carboxylate represented by the following general formula (I) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution; and an electrochemical element using it.Type: ApplicationFiled: September 14, 2010Publication date: July 5, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Koji Abe, Shoji Shikita, Kazuyuki Kawabe, Masahide Kondo, Tatsuo Fujino
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Patent number: 8211336Abstract: Disclosed is a nonaqueous electrolyte secondary battery which is suppressed in increase of internal resistance, while having high capacity retention rate and small battery swelling even after a long use. Specifically disclosed is a method for manufacturing a nonaqueous electrolyte secondary battery, which is characterized by using a positive electrode containing a positive electrode active material having an ?-NaFeO2 crystal structure and the following chemical composition: LixMnaNibCocOd (wherein 0<x<1.3, a+b+c=1, 1.7?d?2.3), while satisfying |a?b|<0.03 and 0.33?c<1, a negative electrode, and a nonaqueous electrolyte containing an unsaturated sultone and a sulfate ester compound.Type: GrantFiled: September 7, 2007Date of Patent: July 3, 2012Assignee: GS Yuasa International Ltd.Inventors: Hanako Miyasaka, Takaaki Iguchi, Junichi Kuratomi, Sumio Mori
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Publication number: 20120164541Abstract: A lithium-free, anion based charge transport electrochemical system that uses fluoride ion transporting electrolytes, including ionic liquids, with and without various additives to improve performance, is described. The fluoride ion transporting electrolyte can be wholly or partly an ionic liquid that is typically liquid at temperatures less than 200 degrees Celsius. In other embodiments, electrolytes that remain liquid at less than 100 degrees Celsius are useful.Type: ApplicationFiled: October 14, 2011Publication date: June 28, 2012Applicant: Contour Energy Systems, Inc.Inventors: Isabelle Darolles, Cedric M. Weiss, Maksudul M. Alam, Arunkumar Tiruvannamalai, Simon Christopher Jones
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Patent number: 8197964Abstract: A battery capable of improving the cycle characteristics even if the thickness of an anode active material layer is increased is provided. The battery includes a cathode, an anode and an electrolytic solution. The anode has an anode active material layer on an anode current collector, and the anode active material layer contains a carbon material and has a thickness of 30 ?m or more. The electrolytic solution contains a solvent and an electrolyte salt, and the solvent contains at least one of sulfone compounds such as a cyclic disulfonic acid anhydride.Type: GrantFiled: June 18, 2008Date of Patent: June 12, 2012Assignee: Sony CorporationInventors: Shunsuke Saito, Masayuki Ihara, Atsumichi Kawashima
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Publication number: 20120141878Abstract: The present invention provides an electrolyte solution and a lithium ion secondary battery which maintain for a long period high battery characteristics represented by the discharge capacity retention rate after the charge/discharge cycle, and simultaneously achieve also the high safety represented by the flame retardation. The present invention provides an electrolyte solution containing a nonaqueous solvent, an electrolyte, a specific compound having a perfluoroalkyl group in the molecule, and an additive having a fluorine atom and/or a phosphorus atom in the molecule.Type: ApplicationFiled: June 9, 2010Publication date: June 7, 2012Applicant: ASAHI KASEI E-MATERIALS CORPORATIONInventors: Asami Ohashi, Yoshiyuki Ishii
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Patent number: 8173298Abstract: An electrolyte for a lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive comprising a) a compound represented by the following Formula (1), and b) a compound selected from the group consisting of a sulfone-based compound, a poly(ester)(metha)acrylate, a polymer of poly(ester)(metha)acrylate, and a mixture thereof: wherein R1 is a C1 to C10 alkyl, a C1 to C10 alkoxy, or a C6 to C10 aryl, and preferably a methyl, ethyl, or methoxy, X is a halogen, and m and n are integers ranging from 1 to 5, where m+n is less than or equal to 6.Type: GrantFiled: February 23, 2011Date of Patent: May 8, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Jun-Ho Kim, Ha-Young Lee, Sang-Hoon Choy, Ho-Sung Kim, Hyeong-Gon Noh