Oxygen Is The Only Ring Hetero Atom In The Hetero Ring (e.g., Dioxolane, Gamma Butyrolactone, Etc.) Patents (Class 429/337)
-
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
-
Publication number: 20130029230Abstract: An electrolyte for the lithium secondary battery having flame retardancy, low negative electrode interfacial resistance, and excellent high temperature properties and life characteristics, and a lithium secondary battery including the same. An electrolyte for lithium secondary battery of the present invention may include a non-aqueous organic solvent, a lithium salt, fluorinated ether or phosphazene, and a resistance-improving additive represented as the following chemical formula (1): RSO2—R1—SO2F??[Chemical Formula 1] wherein R1 is a C1-C12 hydrocarbon unsubstituted or substituted with at least one fluorine.Type: ApplicationFiled: October 3, 2011Publication date: January 31, 2013Applicant: SAMSUNG SDI, CO., LTD.Inventors: Sinyoung Park, Yongbeom Lee, Sunyoung Kim, Bora Lee
-
Patent number: 8361661Abstract: A magnesium battery electrode assembly is described, including a current collector comprising a carbonaceous material and an electrode layer comprising an electrode active material disposed on the current collector.Type: GrantFiled: March 8, 2011Date of Patent: January 29, 2013Assignee: Pellion Technologies Inc.Inventors: Robert Ellis Doe, George Earl Blomgren, Kristin Aslaug Persson
-
Publication number: 20130017418Abstract: The present invention relates to electrode material for an electrical cell comprising as component (A) at least one ion- and electron-conductive metal chalcogenide, as component (B) carbon in a polymorph comprising at least 60% sp2-hybridized carbon atoms, as component (C) at least one sulfur-containing component selected from the group consisting of elemental sulfur, a composite produced from elemental sulfur and at least one polymer, a polymer comprising divalent di- or polysulfide bridges and mixtures thereof, and as component (D) optionally at least one binder. The invention further relates to a rechargeable electrical cell comprising at least one electrode which has been produced from or using the inventive electrode material, to the use of the rechargeable electrical cell and to the use of an ion- and electron-conductive metal chalcogenide for production of an inventive rechargeable electrical cell.Type: ApplicationFiled: July 9, 2012Publication date: January 17, 2013Applicant: BASF SEInventors: Arnd GARSUCH, Stefan Herzog, Lucas Montag, Andrea Krebs
-
Patent number: 8354193Abstract: An electrochemical device, having an anode containing magnesium; a cathode stable to a voltage of at least 3.2 V relative to a magnesium reference; and an electrolyte obtained by admixture of a magnesium salt of a non-nucleophilic base comprising nitrogen and aluminum trichloride in an ether solvent is provided. As sulfur is stable to a voltage of at least 3.2 V relative to a magnesium reference, a magnesium-sulfur electrochemical device is specifically provided.Type: GrantFiled: April 12, 2010Date of Patent: January 15, 2013Assignee: Toyota Motor Engineering & Manufacturing North AmericaInventors: John Muldoon, Hee Soo Kim, Masaki Matsui
-
Patent number: 8349501Abstract: A non-aqueous electrolyte secondary battery including: an electrode group in which a positive electrode and a negative electrode are spirally wound with a separator interposed therebetween; and a non-aqueous electrolyte including a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent, the positive electrode including a positive electrode material mixture layer containing a nickel-containing lithium composite metal oxide, wherein a product of A and B equals 150 to 350, A equals 15 to 20%, and B equals 8 to 25%, where A (%) represents a porosity of the positive electrode material mixture layer, and B (%) represents a volume percentage of ethylene carbonate in the non-aqueous solvent.Type: GrantFiled: November 13, 2006Date of Patent: January 8, 2013Assignee: Panasonic CorporationInventors: Akihiro Taniguchi, Kensuke Nakura, Takashi Takeuchi
-
Patent number: 8349493Abstract: An electrochemical cell is described. The electrochemical cell includes an anode, a cathode, a separator between said anode and said cathode, and an electrolyte. The electrolyte includes a salt dissolved in an organic solvent. The separator in combination with the electrolyte has an area specific resistance less than 2 ohm-cm2. The electrochemical cell has an interfacial anode to cathode ratio of less than about 1.1.Type: GrantFiled: November 24, 2009Date of Patent: January 8, 2013Assignee: The Gillette CompanyInventors: Nikolai Nikolaevich Issaev, Michael Pozin, Michael Dean Sliger, Eric Navok, Fred Joseph Berkowitz
-
Publication number: 20130004862Abstract: An object of the present invention is to provide a nonaqueous electrolytic solution capable of improving low-temperature load characteristics after high temperature charging storage, an electrochemical element using it, and a 1,2-dioxypropane compound used for it. The nonaqueous electrolytic solution of the present invention comprises an electrolyte salt dissolved in a nonaqueous solvent, and contains a 1,2-dioxypropane compound represented by the above-mentioned general formula (I). (wherein R1 and R2 each represent a hydrogen atom, or an alkyl group having from 1 to 6 carbon atoms; X1 represents a group selected from —S(?O)—, —S(?O)2—, —C(?O)—, —CR3R4—, —P(?O)(OR5)— and —SiR6R7—; R3 and R4 each represent a hydrogen atom, or an alkyl group having from 1 to 6 carbon atoms; R5 to R7 each represent an alkyl group having from 1 to 6 carbon atoms.Type: ApplicationFiled: March 24, 2011Publication date: January 3, 2013Applicant: UBE Industries LTDInventors: Kazuhiro Miyoshi, Yuichi Kotou, Shoji Shikita
-
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
-
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
-
Publication number: 20120315511Abstract: The present invention relates to electrode materials for charged electrical cells, comprising at least one polymer comprising polysulfide bridges, and carbon in a polymorph comprising at least 60% sp2-hybridized carbon atoms. The present invention further relates to electrical cells comprising the inventive electrode material, to specific polymers comprising polysulfide bridges, to processes for preparation thereof and to the use of the inventive cells.Type: ApplicationFiled: June 5, 2012Publication date: December 13, 2012Applicant: BASF SEInventors: Oliver GRONWALD, Alexander Panchenko, Arnd Garsuch
-
Patent number: 8318354Abstract: An electrochemical device, having an anode containing magnesium; a cathode stable to a voltage of at least 3.2 V relative to a magnesium reference; and an electrolyte containing an electrochemically active magnesium salt obtained by mixing an organic magnesium compound with an aluminum compound in an ether solvent and separation of the electrochemically active salt from the reaction mixture is provided. The separated electrochemically active salt is stable and safe to handle in comparison to conventional Grignard based electrolyte systems.Type: GrantFiled: April 27, 2010Date of Patent: November 27, 2012Assignee: Toyota Motor Engineering & Manufacturing North AmericaInventors: John Muldoon, Hee Soo Kim
-
Publication number: 20120282531Abstract: An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive. The additive includes a gamma butyrolactone compound substituted with at least one F atom at the ?-position.Type: ApplicationFiled: September 22, 2011Publication date: November 8, 2012Inventors: Duck-Chul Hwang, Eun-Gi Shim, Jong-Hyun Lee, Jong-Su Kim, Young-Min Kim
-
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
-
Patent number: 8293408Abstract: A non-aqueous electrolyte battery including: a positive electrode; a negative electrode including, as an active material, a titanium-containing oxide having a crystal structure belonging to the P4332 space group, which titanium-containing oxide can be carried on one or both surfaces of a current collector; and a non-aqueous electrolyte.Type: GrantFiled: July 21, 2008Date of Patent: October 23, 2012Assignee: Kabushiki Kaisha ToshibaInventors: Hiroki Inagaki, Keigo Hoshina, Norio Takami
-
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
-
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
-
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
-
Publication number: 20120219868Abstract: The objective of the present invention is to prevent deterioration and expanding of anode active material and to improve charge-discharge cycle characteristics in a non-aqueous electrolyte secondary battery comprising an anode of which current collector has thereon a thin layer of an anode active material containing a metal. To solve this problem, in a non-aqueous electrolyte secondary battery wherein a thin layer of anode active material containing a metal which absorbs and discharges lithium is formed on a current collector and the thin layer of the anode active material is divided into columns by a gap formed along the thickness thereof, a compound represented by the following formula is contained in the non-aqueous electrolyte. A-N?C?O In the above formula, A represents an element or a group other than hydrogen.Type: ApplicationFiled: May 3, 2012Publication date: August 30, 2012Applicants: Mitsubishi Chemical Corporation, SANYO Electric Co., Ltd.Inventors: Keiji SAISHO, Hidekazu Yamamoto, Masahiro Takehara
-
Publication number: 20120219867Abstract: A magnesium secondary battery includes a positive electrode, a negative electrode, a separator membrane and an electrolytic solution. The electrolytic solution includes nitrogen-containing heterocyclic magnesium halide and an organic ether solvent.Type: ApplicationFiled: February 23, 2012Publication date: August 30, 2012Applicants: SHANGHAI JIAO TONG UNIVERSITY, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yanna NULI, Qingsong ZHAO, Jun YANG, Yongsheng GUO
-
Patent number: 8252447Abstract: A portable power source system including a battery pack housing at least one secondary battery, wherein first and second internal terminals for connecting to a pair of external terminals are provided inside the battery pack, and two or more operations in different operating directions are required to connect the external terminals to the internal terminals. The battery pack includes external terminal inserting portions for inserting the external terminals, and the two or more operations include a first operation including inserting the external terminals into the external terminal inserting portions and a second operation in a direction different from that of the first operation.Type: GrantFiled: January 5, 2005Date of Patent: August 28, 2012Assignee: Panasonic CorporationInventor: Takayuki Shirane
-
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
-
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
-
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
-
Publication number: 20120183866Abstract: The present invention relates to electrochemical storage devices containing a non-aqueous lithium based electrolyte with high ionic conductivity, low impedance, and high thermal stability. More particularly, this invention relates to the design, synthesis and application of novel fluorinated arylboron oxalate based compounds which act as anion receptors and/or additives for non-aqueous batteries. When used as an anion receptor for non-aqueous battery electrolytes, the fluorinated arylboron oxalate enhances conductivity, lithium ion transference number and Solid Electrolyte Interface (SEI) formation capability during the formation cycling.Type: ApplicationFiled: July 26, 2010Publication date: July 19, 2012Applicant: Brookhaven Science Associates ,LLCInventors: Hung Sui Lee, Xiao-Qing Yang, Kyung-Wan Nam, Xiaojian Wang
-
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
-
Publication number: 20120171578Abstract: 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: ApplicationFiled: March 22, 2007Publication date: July 5, 2012Inventors: Zhengcheng Zhang, Phuong-Nghi Karen Lam, Mikito Nagata, Hisashi Tsukamoto
-
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
-
Publication number: 20120141864Abstract: The present invention provides electrochemical cells and batteries having one or more electrically conductive tabs and carbon sheet current collectors, where the tabs are connected to the carbon sheet current collectors; and methods of connecting the tabs to the carbon based current collectors. In one embodiment, the electrically conductive tabs are metallic tabs.Type: ApplicationFiled: January 4, 2012Publication date: June 7, 2012Applicant: Leyden Energy Inc.Inventors: Marc Juzkow, Aakar Patel, Jun Lui, Konstantin Tikhonov, Michael Erickson, Hashmat Haidari, Thomas Nagy, Hongli Dai
-
Publication number: 20120129053Abstract: Disclosed is an electrochemical device comprising a cathode having a complex formed between a surface of a cathode active material and an aliphatic di-nitrile compound; and a non-aqueous electrolyte containing 1-10 wt % of a compound of Formula 1 or its decomposition product based on the weight of the electrolyte.Type: ApplicationFiled: February 1, 2012Publication date: May 24, 2012Applicant: LG CHEM, LTD.Inventors: Young-Soo Kim, Soon-Ho Ahn, Soo-Hyun Ha
-
Publication number: 20120129035Abstract: There is provided a lithium ion secondary cell excellent in charging and discharging cycle characteristics. A lithium ion secondary cell includes an electrode body including a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a separator, and a non-aqueous electrolyte containing a lithium salt as a supporting salt in an organic solvent, the electrode body and the non-aqueous electrolyte being accommodated in a case. The positive electrode active material is a lithium transition metal oxide having a spinel type structure. The electrolyte contains a compound represented by a chemical formula (I) in an amount of ? mol relative to the total content ? mol of moisture to be mixed in the cell. ? satisfies ?0.8 log(?/?)?1.5.Type: ApplicationFiled: August 4, 2009Publication date: May 24, 2012Inventors: Koji Takahata, Yukihiro Okada
-
Publication number: 20120129055Abstract: There is provided a lithium ion secondary cell excellent in charging and discharging cycle characteristics. A lithium ion secondary cell includes: an electrode body including a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a separator; and a non-aqueous electrolyte containing a lithium salt as a supporting salt in an organic solvent, the electrode body and the non-aqueous electrolyte being accommodated in a case. The positive electrode active material is a lithium transition metal oxide having a layered structure. The electrolyte contains a compound represented by a chemical formula (I) in an amount of ? mol relative to the total content ? mol of moisture to be mixed in the cell. ? satisfies ?1.3?log(?/?)?1.Type: ApplicationFiled: August 4, 2009Publication date: May 24, 2012Inventors: Koji Takahata, Yukihiro Okada
-
Publication number: 20120121990Abstract: An electrolyte for a lithium secondary battery, the electrolyte comprising: a lithium salt, a non-aqueous organic solvent, and an additive represented by Formula 1 below: wherein R1, R2, R3, and R4 are the same as defined in the detailed description.Type: ApplicationFiled: June 29, 2011Publication date: May 17, 2012Applicant: Samsung Electronics Co., Ltd.Inventors: Yoon-sok KANG, Seok-soo Lee, Young-gyoon Ryu, Jin-hwan Park, Mi-jeong Song
-
Publication number: 20120115042Abstract: Nonaqueous electrolytes which can produce a battery of high capacity and excellent storability and cycle characteristics are provided, as are batteries produced with the electrolytes. The electrolytes include ones with (i) an aromatic compound having 7-18 carbon atoms in total and a fluorinated cyclic carbonate having two or more fluorine atoms, (ii) diethyl carbonate and a fluorinated cyclic carbonate having two or more fluorine atoms, (iii) at least one of a cyclic sulfonic acid ester compound, disulfonic acid ester compound, nitrile compound, and a compound of formula (1) and a fluorinated cyclic carbonate having two or more fluorine atoms, or (iv) a nonaqueous electrolyte solution for use in a high-voltage battery having a final charge voltage of 4.3 V or higher and having a fluorinated cyclic carbonate with two or more fluorine atoms.Type: ApplicationFiled: January 19, 2012Publication date: May 10, 2012Applicant: Mitsubishi Chemical CorporationInventors: Minoru KOTATO, Shinichi Kinoshita
-
Publication number: 20120107698Abstract: An electrochemical device, having an anode containing magnesium; a cathode stable to a voltage of at least 3.2 V relative to a magnesium reference; and an electrolyte containing a solvent and a LiCl complex of a magnesium halide salt of a sterically hindered secondary amine is provided. In a preferred embodiment the electrolyte contains tetrahydrofuran and 2,2,6,6-tetramethylpiperidinyl-magnesium chloride-lithium chloride complex.Type: ApplicationFiled: October 27, 2010Publication date: May 3, 2012Applicant: Toyota Motor Engineering & Manufacturing NAInventors: John MULDOON, Hee Soo Kim, Masaki Matsui Matsui
-
Publication number: 20120107696Abstract: An electrode active material mainly includes an organic compound having, in a structural unit thereof, a conjugated diamine structure represented by the general formula (I), and an electrolyte includes a carbonate ester compound represented by the general formula (II). In the formulae, R1 to R4 represent substituted or unsubstituted alkyl groups, or the like, whereas X1 to X4 represent a hydrogen atom or a substituent. A secondary battery is achieved which has a high energy density and thus produces a high output, and has favorable cycle characteristics with a small capacity degradation even in the case of repeating charge and discharge.Type: ApplicationFiled: December 27, 2011Publication date: May 3, 2012Applicant: MURATA MANUFACTURING CO., LTD.Inventors: Masaharu Sato, Satoshi Shigematsu, Koichi Watanabe, Yozo Miura, Takuya Koizumi
-
Publication number: 20120082901Abstract: Li-based anodes for use in an electric current producing cells having long life time and high capacity are provided. In certain embodiments, the Li-based anode comprises at least one anode active Li-containing compound and a composition comprising at least one polymer, at least one ionic liquid, and optionally at least one lithium salt. The composition may be located between the at least one Li-containing compound and the catholyte used in the electric current producing cell. In some embodiments, the at least one polymer may be incompatible with the catholyte. This configuration of components may lead to separation between the lithium active material of the anode and the catholyte. Processes for preparing the Li-based anode and to electric current producing cells comprising such an anode are also provided.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicants: BASF SE, Sion Power CorporationInventors: Rudiger Schmidt, Daher Michael Badine, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
-
Publication number: 20120082872Abstract: Spiro ammonium salts as an additive for electrolytes in electric current producing cells, in particular electric current producing cells comprising a Li-based anode, are provided. In some embodiments, the electric current producing cell comprises a cathode, a Li-based anode, and at least one electrolyte wherein the electrolyte contains at least one spiro ammonium salt.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicants: BASF SE, Sion Power CorporationInventors: Rudiger Schmidt, Daher Michael Badine, Xiao Steimle, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
-
Publication number: 20120077076Abstract: The present invention provides an electrolyte for lithium and/or lithium-ion batteries comprising a lithium salt in a liquid carrier comprising heteroaromatic compound including a five-membered or six-membered heteroaromatic ring moiety comprising carbon atoms and at least one heteroatom forming a neutral aromatic ring, the at least one heteroatom being selected from a Group V element (preferably N) and a Group VI element (preferably O or S), the heteroaromatic ring moiety bearing least one carboxylic ester or carboxylic anhydride substituent bound to at least one carbon atom of the heteroaromatic ring. Preferred heteroaromatic ring moieties include pyridine compounds, pyrazine compounds, pyrrole compounds, furan compounds, and thiophene compounds.Type: ApplicationFiled: September 23, 2010Publication date: March 29, 2012Applicant: UCHICAGO ARGONNE, LLCInventors: Gang CHENG, Daniel P. ABRAHAM
-
Publication number: 20120070750Abstract: An electrolyte for an electrochemical cell and an electrochemical cell comprising such an electrolyte. The electrolyte comprises at least one conductive salt comprising lithium ions, at least one solvent and at least one wetting agent. The electrochemical cell comprises at least one anode, at least one cathode and at least one separator arranged between the at least one anode and the at least one cathode. The electrolyte may be filled between the at least one anode and the at least one cathode.Type: ApplicationFiled: August 19, 2011Publication date: March 22, 2012Inventors: Pierre Blanc, Hilmi Buqa, Karl-Heinz Pettinger
-
Publication number: 20120070749Abstract: The present invention concerns 4-fluoro-4-R-5-R?-1,3-dioxolane-2-ones, wherein R is an alkyl group and R? is H or a C1 to C3 alkyl group, their manufacture, solvent mixtures for lithium ion batteries containing them and conductive salt solutions for lithium ion batteries, e.g. solutions containing LiPF6.Type: ApplicationFiled: May 26, 2010Publication date: March 22, 2012Applicant: SOLVAY FLUOR GMBHInventors: Martin Bomkamp, Jens Olschimke, Carsten Brosch, Andreas Grossmann
-
Patent number: 8137849Abstract: The present invention relates to a phosphate-based acrylate crosslinking agent for polymer electrolyte and a polymer electrolyte composition comprising the phosphate-based acrylate crosslinking agent, and in particular to a phosphate-based acrylate crosslinking agent where a phosphate-based compound is introduced with a polyalkylene oxide group and an acrylate group and a polymer electrolyte composition comprising the phosphate-based acrylate crosslinking agent. The polymer electrolyte composition can be applied to electrolyte thin film and polymer electrolyte of small and large capacity lithium-polymer secondary battery due to its superior ionic conductivity and electrochemical and thermal stability, where the physical properties of electrolyte composition may be controlled by means of the length of polyalkylene oxide of the crosslinking agent.Type: GrantFiled: July 26, 2007Date of Patent: March 20, 2012Assignee: Korea Research Institute of Chemical TechnologyInventors: Yongku Kang, Changjin Lee, Jun Kyoung Lee, Joung In Lee
-
Patent number: 8119286Abstract: An electrochemical cell is described. The electrochemical cell includes an anode, a cathode, a separator between said anode and said cathode, and an electrolyte. The electrolyte includes a salt dissolved in an organic solvent. The separator in combination with the electrolyte has an area specific resistance less than 2 ohm-cm2.Type: GrantFiled: November 24, 2009Date of Patent: February 21, 2012Assignee: The Gillette CompanyInventors: Nikolai Nikolaevich Issaev, Michael Pozin, Michael Dean Sliger, Eric Navok, Fred Joseph Berkowitz
-
Patent number: 8097367Abstract: A non-aqueous electrolyte secondary cell with superior cycle characteristics is provided. The non-aqueous electrolyte secondary cell has a positive electrode, a negative electrode, and a non-aqueous electrolyte containing a non-aqueous solvent and an electrolyte salt. The non-aqueous solvent contains ethylene carbonate and propylene carbonate. The ratio of the ethylene carbonate to the total mass of the ethylene carbonate and the propylene carbonate is from 0.40 to 0.78. The non-aqueous electrolyte contains a 1,3-dioxane compound at a mass % of from 0.1 to 5.0. The 1,3-dioxane compound is represented by Formula 1: where R1 to R4 independently denote a hydrogen atom, a methyl group, or an ethyl group.Type: GrantFiled: September 27, 2007Date of Patent: January 17, 2012Assignee: SANYO Electric Co., Ltd.Inventor: Kentaro Takahashi
-
Publication number: 20120009487Abstract: A non-aqueous electrolyte solution for a lithium secondary battery includes a non-aqueous solvent and a lithium salt dissolved in the non-aqueous solvent. The lithium salt includes LiN(CF3SO2)2. The non-aqueous electrolyte solution further includes a sulfate-based compound and vinylene carbonate. A lithium secondary battery having the above non-aqueous electrolyte solution may keep overall high temperature performance in a high level and also improve low temperature power characteristics.Type: ApplicationFiled: March 26, 2010Publication date: January 12, 2012Applicant: LG CHEM, LTD.Inventors: Ra-Young Hwang, Ji-Sang Yu
-
Publication number: 20110294018Abstract: A compound has general Formula I, II, III, or IV: where X and Y are independently a group of Formula (A): and Z a group of Formula (B): The compounds may be used in electrolytes and electrochemical devices.Type: ApplicationFiled: May 24, 2011Publication date: December 1, 2011Inventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine, Zonghai Chen
-
Publication number: 20110294017Abstract: Compounds may have general Formula IVA or IVB. where, R8, R9, R10, and R11 are each independently selected from H, F, Cl, Br, CN, NO2, alkyl, haloalkyl, and alkoxy groups; X and Y are each independently O, S, N, or P; and Z? is a linkage between X and Y. Such compounds may be used as redox shuttles in electrolytes for use in electrochemical cells, batteries and electronic devices.Type: ApplicationFiled: May 23, 2011Publication date: December 1, 2011Inventors: Wei Weng, Zhengcheng Zhang, Khalil Amine
-
Publication number: 20110294019Abstract: An electrolyte includes a polar aprotic solvent; an alkali metal salt; and an electrode stabilizing compound that is a monomer, which when polymerized forms an electrically conductive polymer. The electrode stabilizing compound is a thiophene, a imidazole, a anilines, a benzene, a azulene, a carbazole, or a thiol. Electrochemical devices may incorporate such electrolytes.Type: ApplicationFiled: May 26, 2011Publication date: December 1, 2011Inventors: Khalil Amine, Ali Abouimrane, Jeffrey S. Moore, Susan A. Odom
-
Publication number: 20110287326Abstract: The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal (chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life.Type: ApplicationFiled: May 26, 2011Publication date: November 24, 2011Inventors: Khalil Amine, Jaekook Kim, Donald R. Vissers
-
Publication number: 20110274987Abstract: A secondary battery capable of improving the cycle characteristics and the storage characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolytic solution containing a nonaqueous solvent and an electrolyte salt. The nonaqueous solvent contains cyclic polyester obtained by dehydrating and condensing two or more divalent carboxylic acid and one or more divalent alcohol.Type: ApplicationFiled: March 25, 2011Publication date: November 10, 2011Applicant: SONY CORPORATIONInventors: Masayuki Ihara, Yuko Hayakawa, Tadahiko Kubota