Chemically Specified Organic Solvent Containing Patents (Class 429/324)
  • Publication number: 20120082883
    Abstract: An electrode mixture comprising a lithium nickel manganese composite metal oxide having an average particle diameter of 1 ?m or less, an electrically conductive material and an overcharge inhibition material. The electrode mixture in which the overcharge inhibition material is an aromatic compound. The electrode mixture in which the overcharge inhibition material is one or more members selected from the group consisting of an aramid, a polyether, a polysulfone and a polyethersulfone. An electrode comprising the electrode mixture. A nonaqueous electrolyte secondary battery comprising a positive electrode, a negative electrode capable of being doped and dedoped with lithium ions, a separator and a nonaqueous electrolytic solution, wherein the positive electrode is the electrode described above.
    Type: Application
    Filed: May 26, 2010
    Publication date: April 5, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Takitaro Yamaguchi, Jun-ichi Kageura
  • Publication number: 20120082901
    Abstract: 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: Application
    Filed: September 30, 2011
    Publication date: April 5, 2012
    Applicants: BASF SE, Sion Power Corporation
    Inventors: Rudiger Schmidt, Daher Michael Badine, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
  • Patent number: 8142927
    Abstract: A lithium secondary battery comprising positive and negative electrodes both capable of occluding and releasing lithium ions, and a lithium ion conductive material which contains a compound of formula (1) exhibits improved characteristics including charge/discharge efficiency, low-temperature properties and cycle performance when (a) only one substituent group of R1, R2, R3 and R4 in formula (1) is alkyl, (b) the negative electrode-constituting material partially contains a carboxyl or hydroxyl group-bearing compound, and the lithium ion conductive material contains propylene carbonate, or (c) a positive electrode active material is a lithium-containing transition metal compound, a negative electrode active material is a carbonaceous material, and the lithium ion conductive material contains as a non-aqueous electrolysis solution a solvent mixture of propylene carbonate and ethylene carbonate in combination with a chain-like carbonate as a low-viscosity solvent.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: March 27, 2012
    Assignee: TDK Corporation
    Inventors: Atushi Sano, Tsuyoshi Iijima, Satoshi Maruyama, Kazuya Ogawa
  • Publication number: 20120034534
    Abstract: A lithium ion battery is provided which contains a cathode, an anode, an electrolyte and a separator, wherein the anode employs polythiocyanogen as an active material.
    Type: Application
    Filed: July 22, 2011
    Publication date: February 9, 2012
    Applicant: University of Delaware
    Inventors: Krishnan Palanichamy, Suresh G. Advani, Ajay K. Prasad
  • Publication number: 20120034530
    Abstract: An electrolytic manganese dioxide improved for tool wear reduction, methods for preparing the improved electrolytic manganese dioxide and for preparing a positive-electrode precursor, and a primary battery are provided. One method includes displacement-washing neutralized electrolytic manganese dioxide with a solution including a corrosion inhibitor configured to be at a first predetermined concentration. The method further includes drying the washed electrolytic manganese dioxide to collect improved electrolytic manganese dioxide including the corrosion inhibitor configured to be at a second predetermined concentration within the improved electrolytic manganese dioxide to minimize corrosion of a metal material in contact with the improved electrolytic manganese dioxide. The corrosion inhibitor includes one of a benzoate salt, a phosphate salt, a carbonate salt, a metaborate salt, a tetraborate salt, a metaperiodate salt, and a meta-aluminate salt.
    Type: Application
    Filed: July 28, 2011
    Publication date: February 9, 2012
    Applicant: ERACHEM COMILOG, INC.
    Inventors: John A. TEAGLE, Oliver SCHILLING
  • Publication number: 20120028131
    Abstract: The invention relates to microporous membranes comprising polymer and having well-balanced permeability, shutdown temperature, and pin puncture strength. The invention also relates to methods for making such membranes, and the use of such membranes as battery separator film in, e.g., lithium ion secondary batteries. The membrane has a shutdown temperature <130.5° C.
    Type: Application
    Filed: March 5, 2010
    Publication date: February 2, 2012
    Applicant: Toray Tonen Specialty Separator Godo Kaisha
    Inventors: Takeshi Ishihara, Satoshi Miyaoka, Koichi Kono, Donna J. Crowther, Patrick Brant
  • Publication number: 20120028130
    Abstract: A non-aqueous electrolyte secondary cell having high temperature storage characteristics and cycle characteristics is provided. This object is realized by adopting the following configuration. The non-aqueous electrolyte secondary cell includes a positive electrode having a positive electrode active material; a negative electrode having a negative electrode active material; and a non-aqueous electrolyte having a non-aqueous solvent and an electrolyte salt. And the positive electrode active material contains a compound represented by Lia(NibCocMnd)1?x?yWxZryO2 (0.9?a?1.2, 0.3?b?0.6, 0.1?c?0.7, 0?d?0.4, b+c+d=1, 0.001?x?0.05, 0.001?y?0.05); and the non-aqueous electrolyte contains at least one compound selected from the group consisting of cyclohexylbenzene, tert-butylbenzene and tert-amylbenzene in a total concentration of 0.1 to 5% by mass relative to the mass of the non-aqueous electrolyte.
    Type: Application
    Filed: July 29, 2011
    Publication date: February 2, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Shinya Miyazaki, Hironori Shirakata
  • Publication number: 20120028132
    Abstract: [Summary] An object of the present invention is to find a new electrolyte having a characteristics for the electrolyte for an electrochemical device and to provide excellent electrolytic solution for a nonaqueous electrolyte battery and nonaqueous electrolyte battery which use this. [Solving Means] To provide an electrolyte for an electrochemical device, having a chemical structure formula represented by a general formula (1). where M is a group 13 or 15 group element of the periodic table; A+ is an alkali metal ion or an onium ion; m is a number of 1-4 when M is a group 13 element, and is a number of 1-6 when M is a group 15 element; n is a number of 0-3 when M is a group 13 element, and is a number of 0-5 when M is a group 15 element; and R is a halogen atom, a C1-C10 halogenated alkyl group, a C6-C20 aryl group, a C6-C20 halogenated aryl group.
    Type: Application
    Filed: March 23, 2010
    Publication date: February 2, 2012
    Applicant: Central Glass Company, Limited
    Inventors: Shoichi Tsujioka, Toshinori Mitsui, Yuki Kondo, Aiichiro Fujiwara
  • Patent number: 8088518
    Abstract: Disclosed is a method for producing a lithium difluorobis(oxalato)phosphate solution, which is characterized by that lithium hexafluorophosphate and oxalic acid are mixed together in a nonaqueous solvent, in a manner that the molar ratio of lithium hexafluorophosphate to oxalic acid falls within a range of 1:1.90 to 1:2.10, and furthermore silicon tetrachloride is added to this, in a manner that the molar ratio of lithium hexafluorophosphate to silicon tetrachloride falls within a range of 1:0.95 to 1:1.10, thereby conducting a reaction. The lithium difluorobis(oxalato)phosphate solution produced by this method has low contents of chlorine compounds and free acids. Therefore, it can become an additive that is effective for improving performance of nonaqueous electrolyte batteries.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: January 3, 2012
    Assignee: Central Glass Company, Limited
    Inventors: Toshinori Mitsui, Kaname Hatakenaka
  • Publication number: 20110311882
    Abstract: Hybrid solid-liquid electrolyte lithium-ion battery devices are disclosed. Certain devices comprise anodes and cathodes conformally coated with an electron insulating and lithium ion conductive solid electrolyte layer.
    Type: Application
    Filed: June 16, 2011
    Publication date: December 22, 2011
    Applicant: Alliance for Sustainable Energy, LLC
    Inventors: Gi-Heon Kim, Yoon Seok Jung
  • Publication number: 20110311879
    Abstract: A nonaqueous electrolyte includes: a solvent; an electrolyte salt; an aromatic compound represented by the following formula (1); and a polyoxometalate and/or a polyoxometalate compound wherein each of R1 to R6 independently represents a hydrogen group, a halogen group, an aliphatic alkyl group, an alicyclic alkyl group, a phenyl group or an alkoxy group; at least one of R1 to R6 is a halogen group, an aliphatic alkyl group, an alicyclic alkyl group, a phenyl group or an alkoxy group; a part or all of hydrogens of R1 to R6 may be substituted with a halogen; and at least a part of R1 to R6 may be bonded to each other to form a ring.
    Type: Application
    Filed: June 8, 2011
    Publication date: December 22, 2011
    Applicant: SONY CORPORATION
    Inventors: Ichiro Yamada, Shunsuke Saito, Haruo Watanabe, Tadahiko Kubota
  • Publication number: 20110311860
    Abstract: A nonaqueous electrolyte battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte containing a solvent and an electrolyte salt, wherein the nonaqueous electrolyte contains a silyl compound represented by the following formula (1) wherein X represents an aliphatic hydrocarbon group having a main chain with a carbon number of 8 or more and not more than 22; a part or all of hydrogens of X may be substituted with a halogen; each of R1 to R3 independently represents a hydrogen group, a halogen group or an aliphatic hydrocarbon group; and at least one of R1 to R3 contains a halogen group.
    Type: Application
    Filed: June 9, 2011
    Publication date: December 22, 2011
    Applicant: SONY CORPORATION
    Inventors: Ichiro Yamada, Tadahiko Kubota
  • Publication number: 20110300452
    Abstract: An electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an electrolyte additive including a compound represented by the following Chemical Formula 1, and a rechargeable lithium battery including the electrolyte for a rechargeable lithium battery. In Chemical Formula 1, Ar1 and Ar2 are the same or different and are independently aromatic organic groups, and X is a halogen.
    Type: Application
    Filed: December 21, 2010
    Publication date: December 8, 2011
    Applicants: TECHNO SEMICHEM CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Na-Rae Park, Jin-Sung Kim, Su-Hee Han, Jin-Hyunk Lim, Mi-Hyeun Oh, Eun-Gi Shim
  • Publication number: 20110294019
    Abstract: 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: Application
    Filed: May 26, 2011
    Publication date: December 1, 2011
    Inventors: Khalil Amine, Ali Abouimrane, Jeffrey S. Moore, Susan A. Odom
  • Publication number: 20110294018
    Abstract: 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: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Inventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine, Zonghai Chen
  • Publication number: 20110294020
    Abstract: This invention relates to a negative active material for a lithium secondary battery, a method of preparing the same and a lithium secondary battery including the same. This negative active material exhibits high capacity and superior cycle-life characteristics and is thus usefully employed in a lithium secondary battery which shows high capacity during high-rate charge•discharge.
    Type: Application
    Filed: July 27, 2009
    Publication date: December 1, 2011
    Applicant: KOREA BASIC SCIENCE INSTITUTE
    Inventors: Yang Soo Kim, Euh Duck Jeong, Hae Jin Kim, Young Min Kim, Jong Seong Bae, Kyong Soo Hong, Hee Jin Kim, Kyeong Seo Bae
  • Patent number: 8062796
    Abstract: Organic electrolytic solutions are provided. One solution includes a lithium salt, an organic solvent including a first solvent having high permittivity and a second solvent having a low boiling point, and a phosphate compound. By using the phosphate based compound, the organic electrolytic solution and the lithium battery including the organic electrolytic solution are flame resistant and have excellent charge/discharge properties. As a result, the lithium battery is highly stable and reliable and has good charge/discharge efficiency.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: November 22, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jae-gu Yoon, Seok-gwang Doo, Seung-sik Hwang, Kyu-sung Park, Nina K. Gusarova, Boris A. Trofimov
  • Patent number: 8057937
    Abstract: Disclosed herein is a hybrid battery using an electrochemically stable electrolyte composition and electrodes suitable for use in the electrolyte composition. The hybrid battery is non-toxic and highly stable, and has improved high-current charge/discharge characteristics. The hybrid battery comprises an electrode unit consisting of an anode and a cathode, a separator for electrically separating the anode and the cathode, and an electrolyte filled in a space between the anode and the cathode so as to form an electric double layer on surfaces of the anode and cathode when a voltage is applied wherein the electrolyte contains a mixture of a lithium salt, an ammonium salt and a pyrrolidinium salt as solutes in a carbonate-based solvent so that the solute mixture has a concentration of 1.0-2.5 mol/L.
    Type: Grant
    Filed: June 14, 2006
    Date of Patent: November 15, 2011
    Assignee: Vina Technology Co., Ltd.
    Inventors: Do Kyong Sung, Jun Tae Jung
  • Publication number: 20110274985
    Abstract: Disclosed are lithium/carbon monofluoride batteries suitable for long term use at highly elevated temperatures. Organosilicon electrolytes having low vapor pressure and high flash points are used, along with lithium salts and ceramic separators. Methods of using these batteries at high temperatures are also disclosed.
    Type: Application
    Filed: May 10, 2010
    Publication date: November 10, 2011
    Inventors: Monica L. Usrey, Xin Chen, Jose A. Pena Hueso, Robert C. West, Robert J. Hamers
  • Patent number: 8053109
    Abstract: A non-aqueous electrolyte secondary battery has a high initial capacity and excels in cycle characteristics and storage characteristics even when charged until the potential of the positive electrode active material exceeds as high as 4.3V versus lithium. The non-aqueous electrolyte of the secondary battery contains both 1,3-dioxane and a sulfonic acid ester compound.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 8, 2011
    Assignees: Sanyo Electric Co., Ltd., Ube Industries, Ltd.
    Inventors: Masato Iwanaga, Noriko Yamashita, Koji Abe, Kazuhiro Miyoshi
  • Publication number: 20110262815
    Abstract: A lithium polymer battery includes a polymer electrolyte or a gel polymer electrolyte having a nonaqueous organic solvent, a lithium salt, an ion-conducting polymer and a fluorinated benzene; a positive electrode; and a negative electrode.
    Type: Application
    Filed: December 22, 2010
    Publication date: October 27, 2011
    Applicant: SAMSUNG SDI CO., LTD. (SDI)
    Inventors: Su-Hee HAN, Jin-Sung KIM, Jin-Hyunk LIM, Na-Rae PARK, Mi-Hyeun OH
  • Publication number: 20110250504
    Abstract: The sudden generation of heat being frequently caused in the case of the overcharge of a lithium secondary cell which have a positive electrode comprising a composite metal oxide of lithium and cobalt or a composite metal oxide of lithium and nickel, a negative electrode comprising metallic lithium, a lithium alloy or a material capable of occluding and releasing lithium, and a nonaqueous electrolyte solution comprising a nonaqueous solvent and an electrolyte dissolved therein can be efficiently prevented by the addition, to the nonaqueous electrolyte solution, of an organic compound which, when the lithium secondary cell is overcharged, decomposes into a decomposition product capable of dissolving out the cobalt or nickel contained in the positive electrode and depositing it ion the negative electrode (for example, a tert-alkylbenzene derivative).
    Type: Application
    Filed: June 21, 2011
    Publication date: October 13, 2011
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Toshikazu HAMAMOTO, Akira UEKI, Koji ABE, Kazuhiro MIYOSHI
  • Patent number: 8034491
    Abstract: An organic electrolytic solution is provided. The electrolytic solution comprises a lithium salt, an organic solvent comprising a first solvent having a high dielectric constant and a second solvent having a low boiling point, and a surfactant having a hydrophilic segment with two ends, each end being connected to a hydrophobic segment. The organic electrolytic solution effectively prevents the electrolytic solution from contacting the anode of the lithium battery to thereby suppress a side reaction on the surface of the anode. This enhances charge/discharge efficiency, lifespan and reliability of the battery.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: October 11, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young-gyoon Ryu, Eun-sung Lee, Jae-young Choi, Seok-soo Lee, Su-jin Kim
  • Publication number: 20110244338
    Abstract: 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: Application
    Filed: April 12, 2010
    Publication date: October 6, 2011
    Applicant: Toyota Motor Engineering & Manufacturing NA
    Inventors: John MULDOON, Hee Soo KIM, Masaki MATSUI
  • Publication number: 20110244339
    Abstract: Disclosed are a non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery comprising the same. The non-aqueous electrolyte solution for a lithium secondary battery may include difluorotoluene having a lowest oxidation potential among components of the non-aqueous electrolyte solution. The lithium secondary battery may have improvement in basic performance including high rate charge/discharge characteristics, cycle life characteristics, and the like, and may remarkably reduce swelling caused by decomposition of an electrolyte solution under high voltage conditions such as overcharge.
    Type: Application
    Filed: June 20, 2011
    Publication date: October 6, 2011
    Inventors: Jong-Ho Jeon, Yong-Gon Lee, Seung-Woo Chu, Shul-Kee Kim, Hyun-Yeong Lee, Jae-Deok Jeon
  • Patent number: 8029934
    Abstract: The present invention provides a battery that experiences a small degree of temporal change from the initial battery properties over the long term storage period of the battery. Specifically, the present invention provides a lithium secondary battery, in which a positive electrode capable of storing and releasing lithium and a negative electrode capable of storing and releasing lithium are formed via an electrolyte, wherein: the electrolyte comprises a cyclic solvent and a chain-type solvent and contains a compound having a boron-oxygen bond (B—O) and a carbon-carbon double bond (C?C).
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: October 4, 2011
    Assignee: Hitachi Vehicle Energy, Ltd.
    Inventors: Hiroshi Haruna, Eiji Hoshi, Kazushige Kohno
  • Publication number: 20110229774
    Abstract: The present invention provides a lithium ion battery which is protected from deterioration in performance due to oxidation decomposition of the nonaqueous electrolyte solution and excels in cycle life. The lithium ion battery has a cathode including a cathode active material exhibiting a potential of 4.5 V or more with reference to lithium metal; an anode; and a nonaqueous electrolyte solution containing a nonaqueous solvent and at least one lithium salt dissolved in the nonaqueous solvent. The nonaqueous solvent mainly contains a cyclic carbonate and a chain carbonate. The nonaqueous electrolyte solution contains boron ethoxide.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 22, 2011
    Inventor: Takahiro YAMAKI
  • Publication number: 20110229770
    Abstract: An electrolyte solution for a rechargeable lithium battery, including a lithium salt, a non-aqueous organic solvent, and an additive including fluoroethylene carbonate, a vinyl-containing carbonate, a substituted or unsubstituted C2 to C10 cyclic sulfate, and a nitrile-based compound represented by the following Chemical Formula 1: wherein, in Chemical Formula 1, R may be a substituted or unsubstituted C1 to C20 alkylene group.
    Type: Application
    Filed: January 12, 2011
    Publication date: September 22, 2011
    Inventors: Hee-Sun Yun, Yong-Beom Lee, Kwang-Jo Cheong, Soo-Mi Eo
  • Publication number: 20110223488
    Abstract: To provide a technique for simply and easily producing a high-purity difluorophosphate and provide a production process of an electrolytic solution using the obtained difluorophosphate, an electrolytic solution and a secondary battery. A process for producing a difluorophosphate, comprising the following step (1) or (2): (1) reacting (A) at least one member selected from the group consisting of oxoacids, oxoacid anhydrides and oxyhalides of phosphorus with (B) a hexafluorophosphate in the presence of hydrogen fluoride, or (2) reacting at least one halide selected from the group consisting of alkali metal halides, alkaline earth metal halides, aluminum halides and onium halides with difluorophosphoric acid in the presence of a hexafluorophosphate. Also, a nonaqueous electrolytic solution containing the obtained difluorophosphate, and a nonaqueous electrolytic secondary battery containing the nonaqueous electrolytic solution.
    Type: Application
    Filed: May 18, 2011
    Publication date: September 15, 2011
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Tetsuo Nishida, Megumi Tomisaki, Kazuhiko Shogami, Hideki Nakashima, Hirofumi Suzuki, Takashi Fujii
  • Publication number: 20110214739
    Abstract: Photoelectric conversion elements and electrolyte solutions suitable for various applications and related components, and methods associated therewith, are described. Photoelectric conversion elements may include an electrolyte solution including an ionic liquid and an organic solvent. The ionic liquid may have an electron pair accepting functional group and the organic solvent may have an electron pair donating functional group. In some cases, including specified amounts of certain ionic liquids and organic solvents together may result in an electrolyte solution providing for advantageous photoelectric conversion efficiency while exhibiting low volatility.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 8, 2011
    Applicant: Sony Corporation
    Inventors: Ryohei Tsuda, Yusuke Suzuki
  • Patent number: 8012630
    Abstract: A polymer electrolyte secondary cell that is superior in the cycle characteristic and security during cell overcharge is provided. The polymer electrolyte of the cell includes a non-aqueous solvent, a lithium salt, and a polymer. The non-aqueous solvent contains at least one of ethylene carbonate and propylene carbonate. The volume ratio (25° C., 1 atm) of the ethylene carbonate and the propylene carbonate combined to the non-aqueous solvent is equal to or more than 60%. The polymer is made of a copolymer having a monomer containing N,N-dimethyl acrylamide and a compound with three or more acrylate groups and/or methacrylate groups. The ratio of the compound to the total mass of the monomer is from 10 to 30 mass %. The ratio of the polymer to the polymer electrolyte is from 1.0 to 2.0 mass %.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: September 6, 2011
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Mikiya Yamasaki, Kentaro Takahashi
  • Patent number: 8007938
    Abstract: A non-aqueous electrolyte solution is provided that realizes a large capacity, exhibits high storage characteristics and cycle characteristics, and is capable of inhibiting gas generation.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: August 30, 2011
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Minoru Kotato, Asao Kominato
  • Patent number: 8007680
    Abstract: The present invention has for its object to provide an electrolyte solution which can dramatically suppress the time degradation in performance of an electrochemical device, especially an electrochemical capacitor. The present invention relates to an electrolyte solution for electrochemical device which comprises an imidazolium salt (A) represented by the general formula (1) as a main component, wherein the content of the imidazolium salt (B) represented by the general formula (2) is not more than 15% by weight to the total weight of the imidazolium salt (A) and imidazolium salt (B); (in the formula, R1, R2 and R3 may be the same or different and each represents an alkyl group containing 1 to 3 carbon atoms; R4 and R5 may be the same or different and each represents an hydrogen atom or an alkyl group containing 1 to 3 carbon atoms; and X? represents a counter anion) (in the formula, R1, R3, R4, R5 and X? are the same as the definition for the general formula (1)).
    Type: Grant
    Filed: September 28, 2006
    Date of Patent: August 30, 2011
    Assignees: Sanyo Chemical Industries, Ltd., Panasonic Corporation
    Inventors: Koji Fujioka, Yoshihiko Akazawa, Yasuyuki Ito, Satomi Onishi
  • Publication number: 20110206996
    Abstract: A method for preparing treated electrolytic manganese dioxide and a battery including the treated electrolytic manganese dioxide as an electrode are provided. The method for treating the electrolytic manganese dioxide includes suspending milled electrolytic manganese dioxide in an aqueous solution heated to a temperature between ambient and boiling, and adjusting an acidity of the aqueous solution to a pH of less than 3.3. The method further includes agitating the suspended milled electrolytic manganese dioxide in the aqueous solution for a predetermined amount of time to dissolve metal-containing particulates in the milled electrolytic manganese dioxide.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 25, 2011
    Applicant: ERACHEM COMILOG, INC.
    Inventors: John A. Teagle, Oliver Schilling, Mayra C. Sanchez
  • Patent number: 7998623
    Abstract: An electrolyte includes a lithium salt, a non-aqueous organic solvent, gamma-butyrolactone and halogenated toluene represented by the following formula 1: wherein X represents at least one element selected from the group consisting of F, Cl, Br and I, and n represents an integer of 1 to 5. The lithium ion secondary battery including the electrolyte provides improved safety under overcharge and high-temperature storage conditions.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: August 16, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jin-Hee Kim, Jin-Sung Kim
  • Publication number: 20110195283
    Abstract: An organic electrolyte solution for use in a redox flow battery and the redox flow battery including the organic electrolyte solution has a high energy density because re-precipitation is prevented in the organic electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.
    Type: Application
    Filed: January 28, 2011
    Publication date: August 11, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-young Sun, Joung-won Park, Doo-yeon Lee, Seung-uk Son
  • Patent number: 7993783
    Abstract: The storage characteristics in a charged state are improved in a non-aqueous electrolyte secondary battery containing a lithium cobalt oxide as a positive electrode active material. The non-aqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material; a negative electrode containing a negative electrode active material other than metallic lithium; and a non-aqueous electrolyte. The positive electrode active material contains a lithium cobalt oxide as its main component. The non-aqueous electrolyte contains 0.1 to 10 volume % of a compound having an ether group. The positive electrode active material and the negative electrode active material are contained so that the charge capacity ratio of the negative electrode to the positive electrode is from 1.0 to 1.2 when the battery is charged until the potential of the positive electrode reaches 4.4 to 4.5 V (vs.
    Type: Grant
    Filed: January 29, 2007
    Date of Patent: August 9, 2011
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Yasufumi Takahashi, Akira Kinoshita, Shingo Tode, Tatsuyuki Kuwahara, Kazuhiro Hasegawa, Hiroyuki Fujimoto, Shin Fujitani
  • Publication number: 20110189549
    Abstract: A redox flow battery has a high energy density and an excellent charge and discharge efficiency because re-precipitation is prevented in an electrolyte solution or eduction is prevented in an electrode during reduction of a metal ion used as an electrolyte.
    Type: Application
    Filed: July 1, 2010
    Publication date: August 4, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-young Sun, Joung-won Park, Seung-sik Hwang, Doo-yeon Lee, Myung-jin Lee
  • Publication number: 20110183213
    Abstract: An object of the present invention is to provide a lithium ion battery in which the deterioration during the high temperature storage is suppressed. The lithium ion battery is a lithium ion battery 100 having a cathode 3 capable of occluding and releasing lithium ions, an anode 6 capable of occluding and releasing lithium ions, a separator 7 disposed between the cathode 3 and the anode 6 and an organic electrolyte solution, wherein the organic electrolyte solution contains a plurality of solvents, an additive and an electrolyte, the electrolyte contains lithium hexafluorophosphate (LiPF6), and the additive contains vinylene carbonate or a derivative thereof and a compound represented by the following formula (I): wherein R1, R2 and R3 are each independently a fluorine atom or a fluorinated alkyl group having 1 to 3 carbon atoms.
    Type: Application
    Filed: January 11, 2011
    Publication date: July 28, 2011
    Inventors: Ryo INOUE, Takefumi OKUMURA
  • Patent number: 7981552
    Abstract: The sudden generation of heat being frequently caused in the case of the overcharge of a lithium secondary cell which have a positive electrode comprising a composite metal oxide of lithium and cobalt or a composite metal oxide of lithium and nickel, a negative electrode comprising metallic lithium, a lithium alloy or a material capable of occluding and releasing lithium, and a nonaqueous electrolyte solution comprising a nonaqueous solvent and an electrolyte dissolved therein can be efficiently prevented by the addition, to the nonaqueous electrolyte solution, of an organic compound which, when the lithium secondary cell is overcharged, decomposes into a decomposition product capable of dissolving out the cobalt or nickel contained in the positive electrode and depositing it ion the negative electrode (for example, a tert-alkylbenzene derivative).
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: July 19, 2011
    Assignee: Ube Industries, Ltd.
    Inventors: Toshikazu Hamamoto, Akira Ueki, Koji Abe, Kazuhiro Miyoshi
  • Publication number: 20110165457
    Abstract: A lithium accumulator including at least two three-dimensional electrodes separated by a separator and encased together with an electrolyte, comprising a non-aqueous solution of a lithium salt in an organic polar solvent, into an accumulator body wherein the two electrodes have a minimum thickness of 0.5 mm each, of which at least one electrode comprises a homogenous, compressed mixture of an electron conductive component and an active material, capable to absorb and extract lithium in the presence of electrolyte, wherein the porosity of the pressed electrodes is 25 to 90%, the active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size, while the separator consists of a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95%.
    Type: Application
    Filed: September 18, 2009
    Publication date: July 7, 2011
    Applicant: HE3DA s.r.o.
    Inventors: Jan Prochazka, JR., Jan Prochazka
  • Patent number: 7972732
    Abstract: A membrane humidifier assembly includes a first flow field plate adapted to facilitate flow of a first gas thereto and a second flow field plate adapted to facilitate flow of a second gas thereto. A polymeric membrane is disposed between the first and second flow fields and adapted to permit transfer of water from the first flow field plate to the second flow field plate. The polymeric membrane includes a polymer having perfluorocyclobutyl groups and a pendant side chain having a protogenic group.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: July 5, 2011
    Assignee: GM Global Technology Operations LLC
    Inventors: Sean M MacKinnon, Timothy J. Fuller, Annette M. Brenner
  • Patent number: 7967874
    Abstract: A non-aqueous electrolyte secondary battery having a positive electrode and a negative electrode with an active material capable of absorbing and desorbing lithium, a separator interposed between the positive and negative electrodes, and a non-aqueous electrolyte. The negative electrode active material is covered by a coating having elasticity. The fully elastic coating expands and contracts following the volume change of the negative electrode active material; thus, the coating brings out its desired functions without being damaged or broken. Regardless of the degree of the volume change of the negative electrode active material, a lasting coating without damage is formed on the negative electrode active material, to improve performances of the non-aqueous electrolyte secondary battery.
    Type: Grant
    Filed: October 15, 2009
    Date of Patent: June 28, 2011
    Assignee: Panasonic Corporation
    Inventors: Tetsuo Nanno, Tomohiro Ueda
  • Patent number: 7968235
    Abstract: 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: Grant
    Filed: May 28, 2004
    Date of Patent: June 28, 2011
    Assignee: UChicago Argonne LLC
    Inventors: Khalil Amine, Jaekook Kim, Donald R. Vissers
  • Publication number: 20110151336
    Abstract: A lithium battery includes a cathode; an anode; and an organic electrolyte solution. The cathode includes cathode active materials that discharge oxygen during charging and discharging. The organic electrolyte solution includes: lithium salt; an organic solvent, and at least one selected from the group consisting of compounds represented by Formula 1 and Formula 2 below: P(R1)a(OR2)b??Formula 1 O?P(R1)a(OR2)b.??Formula 2 R1 is each independently a substituted or unsubstituted C1-C20 alkyl group or a substituted or unsubstituted C6-C30 aryl group. R2 is each independently a substituted or unsubstituted C1-C20 alkyl group or a substituted or unsubstituted C6-C30 aryl group. a and b are each independently in a range of about 0 to about 3 and a+b=3.
    Type: Application
    Filed: August 16, 2010
    Publication date: June 23, 2011
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Dong-joon Lee, Dong-min Im, Young-gyoon Ryu, Seok-soo Lee
  • Publication number: 20110151337
    Abstract: 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: Application
    Filed: February 23, 2011
    Publication date: June 23, 2011
    Inventors: Jun-Ho Kim, Ha-Young Lee, Sang-Hoon Choy, Ho-Sung Kim, Hyeong-Gon Noh
  • Patent number: 7964310
    Abstract: An electrochemical cell comprises as an anode, a lithium transition metal oxide or sulphide compound which has a [B2]X4n? spinel-type framework structure of an A[B2]X4 spinel wherein A and B are metal cations selected from Li, Ti, V, Mn, Fe and Co, X is oxygen or sulphur, and n? refers to the overall charge of the structural unit [B2]X4 of the framework structure. The transition metal cation in the fully discharged state has a mean oxidation state greater than +3 for Ti, +3 for V, +3.5 for Mn, +2 for Fe and +2 for Co. The cell includes as a cathode, a lithium metal oxide or sulphide compound. An electrically insulative lithium containing liquid or polymeric electronically conductive electrolyte is provided between the anode and the cathode.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: June 21, 2011
    Assignee: Technology Finance Corporation (Proprietary) Limited
    Inventors: Michael M. Thackeray, Rosalind J. Gummow, Ernest E Ferg
  • Publication number: 20110143214
    Abstract: The present invention includes small molecule organic additives for lead acid batteries, a lead acid battery and components thereof containing the small molecule organic additives of the invention, and methods for the use of such compounds. The batteries of the invention may optionally further contain carbon foam. The presence of carbon in the battery may generate some of the organic agents of the invention.
    Type: Application
    Filed: July 7, 2009
    Publication date: June 16, 2011
    Applicant: FIREFLY INTERNATIONAL ENERGY GROUP, INC.
    Inventors: Boris Monahov, Kurt Kelley, Mohamadkheir Alkhateeb
  • Publication number: 20110143219
    Abstract: A fluoride ion battery includes a substantially lithium-free anode and cathode. At least one of the anode or cathode contains fluorine, and a substantially lithium-free liquid electrolyte is used for charge transport. The electrolyte is liquid at temperatures below about 200 degrees Celsius, and can be formed from an organic-soluble fluoride salt dissolved in selected classes of solvents.
    Type: Application
    Filed: December 9, 2010
    Publication date: June 16, 2011
    Applicant: Contour Energy Systems, Inc.
    Inventors: Cedric M. Weiss, Simon Christopher Jones, Arunkumar Tiruvannamalai, Isabelle Darolles, Maksudul M. Alam, Sohrab Hossain
  • Publication number: 20110136018
    Abstract: The present invention provides a non-aqueous electrolytic solution including an organosilicon compound having a metal atom, a phosphorus atom or a boron atom, and a fluorine-containing alkali metal salt, wherein the content of a fluorinated organosilicon compound generated by reaction of the organosilicon compound and the fluorine-containing alkali metal salt in the non-aqueous electrolytic solution is 0.2% by mass or less.
    Type: Application
    Filed: August 5, 2009
    Publication date: June 9, 2011
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Hidenobu Nogi, Takashi Hayashi, Akio Hiwara