Nitrogen Containing Organic Solvent Compound (e.g., Acetonitrile, Etc.) Patents (Class 429/339)
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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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Patent number: 8445143Abstract: Disclosed is an electrode comprising an aliphatic nitrile compound, wherein the aliphatic nitrile compound is coated on a surface of the electrode or is incorporated into the electrode active materials. A lithium secondary battery having the electrode is also disclosed. The lithium secondary battery has excellent safety so as to prevent ignition and explosion generated when the internal temperature of the battery is increased due to the heat emission caused by the reaction of an electrolyte with a cathode and the structural collapse of a cathode occurring upon overcharge. Additionally, it is also possible to prevent ignition and explosion when the battery is exposed to high temperature due to an increase in temperature resulting from heating or local short circuit caused by physical impacts. Further, it is possible to solve the problems of an increase in viscosity and degradation in battery performance at a low temperature occurring when an aliphatic nitrile compound is used as an additive for electrolyte.Type: GrantFiled: February 11, 2005Date of Patent: May 21, 2013Assignee: LG Chem, Ltd.Inventors: Young Soo Kim, Soon Ho Ahn
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Publication number: 20130115522Abstract: LiPO2F2 is manufactured by the reaction of compounds of the general formula (I), LiXYPO4, wherein X and Y are the same or different and denote H or Li, with anhydrous HF forming a reaction mixture comprising LiPO2F2. Preferably, LiH2PO4 is applied as starting material. LiPO2F2 can be isolated from the reaction mixture by extraction with dimethyl carbonate or propylene carbonate.Type: ApplicationFiled: June 30, 2011Publication date: May 9, 2013Applicant: SOLVAY SAInventors: Placido Garcia-Juan, Alf Schulz
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Patent number: 8435681Abstract: A non-aqueous electrolyte solution containing a lithium salt, a non-aqueous solvent, and a compound expressed by the following formula (IIc): wherein Z6 represents an integer of 2 or larger, X6 represents a Z6-valent hydrocarbon group having 2-6 carbon atoms, R61 represents, independently of each other, an alkyl group having 1-6 carbon atoms, R62 represents, independently of each other, an alkyl group having 1-6 carbon atoms substituted by one or more halogen atoms and any two or more of R61 and/or R62 may be linked with each other to form a ring.Type: GrantFiled: August 12, 2011Date of Patent: May 7, 2013Assignee: Mitsubishi Chemical CorporationInventors: Teppei Yamada, Takashi Fujii, Shinichi Kinoshita
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Publication number: 20130108934Abstract: A lithium air battery including an electrolyte including lithium ion conductive polymers and lithium salts between a positive electrode and a lithium ion conductive solid electrolyte membrane. The lithium ion conductive polymers are hydrophilic matrix polymers.Type: ApplicationFiled: September 14, 2012Publication date: May 2, 2013Applicants: National University Corporation Mie University, SAMSUNG ELECTRONICS CO., LTD.Inventors: Dong-joon LEE, Victor ROEV, Young-gyoon RYU, Dong-min IM, Min-sik PARK, Sang-bok MA, Osamu YAMAMOTO, Nobuyuki IMANISHI, Yasuo TAKEDA
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Patent number: 8415058Abstract: A nonaqueous secondary battery having a positive electrode having a positive electrode mixture layer, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode contains, as an active material, a lithium-containing transition metal oxide containing a metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, the positive electrode mixture layer has a density of 3.Type: GrantFiled: June 12, 2012Date of Patent: April 9, 2013Assignee: Hitachi Maxell, Ltd.Inventors: Hideo Sakata, Fusaji Kita, Kumiko Ishizuka
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Patent number: 8415057Abstract: An electrolytic solution for a lithium battery including a positive electrode having a nickel-cobalt-manganese based active material, the electrolytic solution including a nonaqueous organic solvent and a lithium salt, the nonaqueous organic solvent including ethylene carbonate and dimethyl carbonate, a lithium battery including the electrolytic solution, and a method of operating the lithium battery.Type: GrantFiled: July 19, 2010Date of Patent: April 9, 2013Assignee: Samsung SDI Co., Ltd.Inventors: Mi-Hyeun Oh, Jin-Sung Kim, Su-Hee Han, Jin-Hyunk Lim, Na-Rae Park
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Publication number: 20130078531Abstract: A non-aqueous electrolyte battery includes an electrode group includes a positive electrode and a negative electrode disposed through a separator, and a non-aqueous electrolyte. The negative electrode comprises a current collector and a porous negative electrode layer formed on the current collector and containing a lithium compound. The porous negative electrode layer has a first peak at a pore diameter of 0.04 to 0.15 ?m and a second peak at a pore diameter of 0.8 to 6 ?m in the relation between the pore diameter and log differential intrusion obtained in the mercury press-in method.Type: ApplicationFiled: November 16, 2012Publication date: March 28, 2013Inventors: Hidesato SARUWATARI, Hideaki MORISHIMA, Hiroki INAGAKI, Norio TAKAMI
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Publication number: 20130078529Abstract: A lithium ion battery includes a first electrode made of a cathodic material; a second electrode made of an anodic material; an electrolyte solution; and an additive added to the electrolyte solution, wherein the additive comprises a conjugated system and a bi-functional hydrogen bonding moiety. The additive includes a ?OH group and an N atom. The additive includes a compound having a structure shown as follows: wherein R2, R3, R4, R5, R6, and R7 are each independently selected from H, halogen, —OH, —NH2, —NO2, —CN, —CHO, —Si(CH3)3,—NH-alkyl, —O-alkyl, or an alkyl, wherein the alkyl group is C1-C12 alkyl; preferably, C1-C6 alkyl; more preferably C1-C3 alkyl; and wherein the alkyl group may be optionally substituted with one or more substituents selected from —OH, —NH2, —NO2, —CN, —CHO.Type: ApplicationFiled: September 20, 2012Publication date: March 28, 2013Applicant: HEFEI GUOXUAN HIGH-TECH POWER ENERGY CO., LTD.Inventor: HEFEI GUOXUAN HIGH-TECH POWER ENERGY CO., LTD.
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Patent number: 8399137Abstract: The present invention provides an electrolyte containing novel additive for electrochemical device and the electrochemical device thereof. The additive is a compound represented by below formula (I): wherein R1 and R2 are independently hydrogen, methyl, ethyl, or halogen; n and m are independently 1, 2, or 3. The additive of the present invention can protect the surface of the carbonaceous material on the anode and suppress the occurrence of exfoliation, thereby increasing the lifetime of the electrochemical device. Furthermore, the additive of the present invention also slows down the decay of capacity on the cathode during charging-discharging cycles, and hence maintains a better performance.Type: GrantFiled: January 15, 2010Date of Patent: March 19, 2013Assignee: Taiwan Hopax Chems. Mfg. Co., Ltd.Inventors: Li-Jane Her, Chih-Wei Huang, Po-Cheng Chen
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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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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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Publication number: 20130034780Abstract: A magnesium battery, having an anode containing magnesium; a cathode stable to a voltage of at least 2.6 V relative to a magnesium reference; and an electrolyte containing an electrochemically active magnesium salt obtained by reaction of a Grignard reagent or Hauser base with a boron compound of formula BR3 is provided. The electrolyte is stable to 2.6 E.V. vs. Mg in the presence of stainless steel.Type: ApplicationFiled: August 4, 2011Publication date: February 7, 2013Applicant: Toyota Motor Engin. & Manufact. N.A.(TEMA)Inventors: John MULDOON, Claudiu Bogdan Bucur
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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: 20130017456Abstract: A flame-retardant lithium secondary battery is provided that has better battery performance and higher safety than conventional batteries. The lithium secondary battery uses a positive electrode that includes a positive electrode active material of the general formula (I) below, and a nonaqueous electrolytic solution in which an ionic liquid that contains bis(fluorosulfonyl)imide anions as an anionic component is used as the solvent, (1) LiNixMny O4, wherein x and y are values that satisfy the relations x+y=2, and x:y=27.572.5 to 22.577.5.Type: ApplicationFiled: January 17, 2011Publication date: January 17, 2013Applicants: A SCHOOL CORPORATION KANSAI UNIVERSITY, DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Toshinori Sugimoto, Tetsuya Higashizaki, Eriko Ishiko, Michiyuki Kono, Masashi Ishikawa
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Patent number: 8349497Abstract: Disclosed is an electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the same. The electrolyte includes a lithium salt, a trialkylsilyl cyanide compound represented by the following Chemical Formula 1, and an organic solvent. In the above Chemical Formula 1, R1 to R3 are the same or different, and selected from C1 to C6 alkyls.Type: GrantFiled: December 10, 2009Date of Patent: January 8, 2013Assignee: Samsung SDI Co., Ltd.Inventors: Na-Rae Park, Jin-Sung Kim, Su-Hee Han, Jin-Hyunk Lim, Mi-Hyeun Oh
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Patent number: 8349503Abstract: A nonaqueous electrolyte battery, including a case, a positive electrode housed in the case, a negative electrode housed in the case, and a nonaqueous electrolyte containing an ionic liquid and lithium ions of which molar amount is no smaller than 1.8×10?5 mol per mAh of the battery capacity.Type: GrantFiled: January 24, 2006Date of Patent: January 8, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Hidesato Saruwatari, Takashi Kishi, Takashi Kuboki, Norio Takami
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Publication number: 20130004859Abstract: Disclosed are a nonaqueous electrolyte for a lithium secondary battery containing a hetero polycyclic compound and a lithium secondary battery using the same.Type: ApplicationFiled: June 29, 2012Publication date: January 3, 2013Inventors: Sung-Hoon YU, Doo Kyung YANG, Jong-Ho JEON, Min-Jung JOU
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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: 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: 20120328960Abstract: A nonaqueous solvent having excellent reduction resistance, which can be applied to an electrolyte solution, is provided. Further, a nonaqueous solvent which can be used in a wide temperature range and applied to an electrolyte solution is provided. Furthermore, a high-performance power storage device is provided. A nonaqueous solvent containing at least an ionic liquid including an alicyclic quaternary ammonium cation having one or more substituents and a counter anion to the alicyclic quaternary ammonium cation, and a freezing-point depressant is provided. A power storage device including the nonaqueous solvent for an electrolyte solution is also provided.Type: ApplicationFiled: June 20, 2012Publication date: December 27, 2012Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Kyosuke ITO, Toru Itakura
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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: 20120315550Abstract: The invention relates to a graphene-modified lithium iron phosphate positive electrode active material and a method for preparing the same, as well as a lithium-ion secondary cell based on this positive electrode active material. The positive electrode active material is prepared by a method in which graphene or graphene oxide and lithium iron phosphate are dispersed in an aqueous solution, agitated and ultrasonicated to mix homogeneously and for a mixture, dried to obtain a lithium iron phosphate material compounded with graphene or graphene oxide, and annealed at high temperature to obtain finally a graphene-modified lithium iron phosphate positive electrode active material. When compared with conventional modified lithium cells coated with carbon or doped with conductive polymers, the lithium-ion secondary cell based on this positive electrode active material features high cell capacity, good cycling performance of charge and discharge, long life and high cycle stability, and has great utility value.Type: ApplicationFiled: January 22, 2010Publication date: December 13, 2012Applicant: Ningbo Institute of Materials Technology and Engineering, Chinese Academy of SciencesInventors: Zhaoping Liu, Xufeng Zhou
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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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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: 20120282530Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: ApplicationFiled: July 13, 2012Publication date: November 8, 2012Applicant: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, William Douglas Moorehead
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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: 8283075Abstract: A non-aqueous electrolyte secondary battery has a positive electrode (1), a negative electrode (2), a separator (3) interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution in which a solute is dissolved in a non-aqueous solvent. The negative electrode contains a negative electrode active material capable of alloying with lithium and the non-aqueous solvent of the non-aqueous electrolyte solution contains one ore more fluorinated cyclic carbonates and a carboxylic ester. In addition, the non-aqueous electrolyte solution contains a nitrile compound having a chain saturated hydrocarbon group having two or more carbon atoms.Type: GrantFiled: February 26, 2009Date of Patent: October 9, 2012Assignee: SANYO Electric Co., Ltd.Inventors: Hidekazu Yamamoto, Atsushi Fukui, Taizo Sunano, Maruo Kamino
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Publication number: 20120251896Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionicaily conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: ApplicationFiled: May 15, 2012Publication date: October 4, 2012Applicant: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, William Douglas Moorehead
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Publication number: 20120251893Abstract: A nonaqueous secondary battery having a positive electrode having a positive electrode mixture layer, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode contains, as an active material, a lithium-containing transition metal oxide containing a metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, the positive electrode mixture layer has a density of 3.Type: ApplicationFiled: June 12, 2012Publication date: October 4, 2012Inventors: Hideo SAKATA, Fusaji Kita, Kumiko Ishizuka
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Patent number: 8273484Abstract: Nitrogen silylated compounds are useful as additives in a nonaqueous electrolytic solution. The electrolytic solution including such additives is suitable for use in electrochemical cells such as lithium and lithium ion batteries. Batteries using this electrolytic solution have long cycle life and high capacity retention.Type: GrantFiled: May 26, 2005Date of Patent: September 25, 2012Assignee: Novolyte Technologies, Inc.Inventors: Wu Xu, Zhongyi Deng, Pascal Bolomey
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Publication number: 20120237837Abstract: The present invention generally relates to electrochemical batteries, and more specifically, to the combined additives in the non-aqueous electrolyte for rechargeable lithium-ion batteries containing spinel-based cathode that may enhance the performance of the batteries. The mixed additives comprising of 1,8-bis(dialkylamino)naphthalene, wherein alky group is described by CnH2n+1, n=1 to 3, and vinylene carbonate (VC) are added to the electrolyte of the lithium-ion batteries greatly improve the capacity recovery and reduce AC impedance growth during the high temperature storage. The incorporation of the two kinds of additives within the electrolyte of the battery can also improve the high temperature cycling performance.Type: ApplicationFiled: March 18, 2011Publication date: September 20, 2012Applicants: E-ONE MOLI ENERGY (CANADA) LIMITED, E-ONE MOLI ENERGY CORPORATIONInventors: Yong-Shou LIN, Li FENG
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Patent number: 8263267Abstract: A rechargeable battery and associated methods, the rechargeable battery including an anode, a cathode, wherein the cathode includes a ternary cathode-active material, a separator interposed between the cathode and the anode, an electrolyte, and a housing enclosing the electrolyte, the anode, and the cathode, wherein the electrolyte includes a lithium salt, a non-aqueous organic solvent, about 0.5 weight % to about 5 weight % of succinonitrile, and at least one of about 1 weight % to about 10 weight % of halogenated ethylene carbonate and about 1 weight % to about 5 weight % of vinyl ethylene carbonate.Type: GrantFiled: July 6, 2009Date of Patent: September 11, 2012Assignee: Samsung SDI Co., Ltd.Inventor: Jinhee Kim
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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: 8257871Abstract: An electrolyte for a lithium secondary battery, and a lithium secondary battery including the same are provided. The electrolyte includes: a cyclic ester; an organic solvent including a nitrile-containing solvent represented by Formula 1 at a content ranging from 1 to 5% by volume; and a lithium salt, R—C?N??(1) wherein R is selected from the group consisting of a C1 to C10 aliphatic hydrocarbon, a C1 to C10 halogenated aliphatic hydrocarbon, a C6 to C10 aromatic hydrocarbon, and a C6 to C10 halogenated aromatic hydrocarbon. The electrolyte can improve swelling characteristics and discharge capacity characteristics at a low temperature, and realize equal or better performance in characteristics such as capacity, life span and the like, as compared to a conventional carbonate-containing electrolyte.Type: GrantFiled: November 15, 2007Date of Patent: September 4, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Na-Rae Park, Jin-Bum Kim, Jin-Sung Kim, Yong-Shik Kim
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Patent number: 8257870Abstract: A non-aqueous electrolyte for a battery comprises a non-aqueous solvent containing a specified cyclic phosphazene compound and a specified difluorophosphate compound, a specified aniline derivative and a support salt.Type: GrantFiled: July 13, 2007Date of Patent: September 4, 2012Assignee: Bridgestone CorporationInventor: Yasuo Horikawa
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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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Publication number: 20120214072Abstract: The present invention concerns electrode materials capable of redox reactions by electron and alkali-ion exchange with an electrolyte. The applications are in the field of primary (batteries) or secondary electrochemical generators, supercapacitors and light modulating systems of the electrochromic type.Type: ApplicationFiled: May 4, 2012Publication date: August 23, 2012Applicants: ACEP Inc., Universite De Montreal, CNRSInventors: Nathalie Ravet, Simon Besner, Martin Simoneau, Alain Vallee, Michel Armand, Jean-Francois Magnan
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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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Publication number: 20120202124Abstract: Disclosed is a lithium secondary battery. The lithium secondary battery includes a cathode, an anode, a separator and a non-aqueous electrolyte solution. Either the cathode or the anode or both include metal oxide coating layers on electrode active material particles forming the electrode or a metal oxide coating layer on the surface of an electrode layer formed on a current collector. The non-aqueous electrolyte solution contains an ionizable lithium salt, an organic solvent, and a dinitrile compound having a specific structure. In the lithium secondary battery, degradation of the electrode is prevented and side reactions of the electrolyte solution are inhibited. Therefore, the lithium secondary battery exhibits excellent cycle life and output performance characteristics.Type: ApplicationFiled: April 16, 2012Publication date: August 9, 2012Inventors: Jong-Ho JEON, Doo-Kyung Yang, Sung-Hoon Yu, Min-Hyung Lee
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Publication number: 20120196158Abstract: The present invention provides 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 said additive to an electrolyte of electrochemical device.Type: ApplicationFiled: January 18, 2012Publication date: August 2, 2012Applicant: TAIWAN HOPAX CHEMS. MFG. CO., LTD.Inventors: Chia-Chin CHANG, Li-Jane Her
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Publication number: 20120196191Abstract: Disclosed is a lithium secondary battery. The lithium secondary battery includes a cathode, an anode, a separator and a non-aqueous electrolyte solution. The separator includes a porous substrate, and a coating layer coated on at least one surface of the porous substrate and including a mixture of inorganic particles and a binder polymer. The non-aqueous electrolyte solution contains an ionizable lithium salt, an organic solvent, and a dinitrile compound having a specific structure. The lithium secondary battery is very safe without side reactions of the electrolyte solution. Therefore, the lithium secondary battery exhibits excellent cycle life and output performance characteristics.Type: ApplicationFiled: April 16, 2012Publication date: August 2, 2012Inventors: Jong-Ho JEON, Doo-Kyung Yang, Sung-Hoon Yu, Min-Hyung Lee
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Publication number: 20120196187Abstract: 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: ApplicationFiled: September 28, 2010Publication date: August 2, 2012Applicant: NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITYInventors: Tatsuo Fujinami, Yasutaka Tanaka, Yasutoshi Iriyama
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Publication number: 20120196192Abstract: In one aspect, a rechargeable lithium battery including an electrolyte for the rechargeable lithium battery is provided. The electrolyte for the rechargeable lithium battery includes: a non-aqueous organic solvent; a lithium salt; and a compound represented by Chemical Formula 1.Type: ApplicationFiled: September 20, 2011Publication date: August 2, 2012Applicant: Samsung SDI Co., Ltd.Inventors: Dai-In Park, Ho-Seok Yang, In-Haeng Cho
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Publication number: 20120176089Abstract: Disclosed is a lithium secondary battery including a positive electrode comprising a combination of positive active materials. The combination includes a material represented by one or both of Formulae 1 and 2; and a material of Formula 3 as follows: LiaNibMncMdO2??(Formula 1) where 0.90?a?1.2; 0.5?b?0.9; 0<c<0.4; 0?d?0.2; LiaNibCocMndMeO2??(Formula 2) where 0.90?a?1.2, 0.5?b?0.9, 0<c<0.4, 0<d<0.4, and 0?e?0.2; LiaCoMbO2??(Formula 3) where 0.90?a?1.2 and 0?b?0.2; and each M of Formulae 1-3 is independently selected from the group consisting of Mg, Ca, Sr, Ba, Ra, Sc, Y, Ti, Zr, Hf, Rf, V, Nb, Ta, Db, Cr, Mo, W, Sg, Tc, Re, Bh, Fe, Ru, Os, Hs, Rh, Ir, Pd, Pt, Cu, Ag, Au, Zn, Cd, B, Al, Ga, In, Tl, Si, Ge, Sn, P, As, Sb, Bi, S, Se, Te, Po, and combinations.Type: ApplicationFiled: March 19, 2012Publication date: July 12, 2012Inventors: Duck-Chul Hwang, Geun-Bae Kim, Yong-Chul Park, Won-II Jung, Jun-Won Suh, Jan-Dee Kim
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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