Electrolytes For Electrical Devices (e.g., Rectifier, Condenser) Patents (Class 252/62.2)
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Patent number: 8273478Abstract: A rechargeable lithium battery includes an electrolyte including an additive such as an ethylene carbonate-based compound represented by Chemical Formula 1 and a silicon-included compound, and a negative electrode including a negative active material including an active element selected from the group consisting of Si, Sn, Ga, Cd, Al, Pb, Zn, Bi, In, Mg, and Ge. In Chemical formula 1, X and Y are independently selected from the group consisting of hydrogen, a halogen, and a C1 through C5 fluoroalkyl, provided that at least one of X and Y is selected from the group consisting of a halogen and a C1 through C5 fluoroalkyl. The rechargeable lithium battery has a suppressed volume expansion characteristic due to a high-capacity negative active material, and has excellent reliability and cycle-life characteristics.Type: GrantFiled: March 31, 2009Date of Patent: September 25, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Jin-Sung Kim, Na-Rae Park, Su-Hee Han, Jin-Hyunk Lim
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Patent number: 8273263Abstract: An ionic compound is provided that has an anion represented by a: formula (1) and a cation represented by a formula (2): where X is an element selected from the group consisting of B, C, N, O, Al, Si, P, S, As, and Se, M1 and M2 are identical or different, and represent linking groups, and, when multiple M1s or multiple M2s are present, they may be identical or different, Q represents a monovalent element or organic group, a represents an integer of 1 or more, and b, c, d, and a each represent an integer of 0 or more; and RS-LH?(2) where L is an element selected from the group consisting of C, Si, N, P, S, and 0, R represents a monovalent element, functional group, or organic group, and s represents an integer of 2 to 4.Type: GrantFiled: July 27, 2007Date of Patent: September 25, 2012Assignee: Nichicon CorporationInventors: Daisuke Kubo, Takayuki Ueda, Hideyuki Tahara, Keiichiro Mizuta, Hironobu Hashimoto, Taisuke Kasahara
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Publication number: 20120235072Abstract: Provided is an electrolytic solution for an aluminum electrolytic capacitor, which shows a specific conductivity, a high sparking voltage, and a characteristic of causing only a slight expansion of the capacitor in the reflow process, each being comparable with conventional alkyl phosphate anions, and which has high reliability without causing a short circuit. Also provided is an aluminum electrolytic capacitor. The present invention is directed to an electrolytic solution for an aluminum electrolytic capacitor, comprising an electrolyte (C) comprising an alkyl phosphate anion (a) represented by the general formula (1)/(2) and an amidinium cation (b); a borate ester (H) which is obtained by reacting boric acid (d) with diethylne glycol (e) and a polyalkylene glycol (f) having a molecular weight of 130-350 and/or a polyalkylene glycol monoalkyl ether (g) having a molecular weight of 130-350, and which has a boron content of 5-14 wt %; and an organic solvent (J).Type: ApplicationFiled: October 22, 2010Publication date: September 20, 2012Applicants: SANYO CHEMICAL INDUSTRIES, LTD., PANASONIC CORPORATIONInventors: Satoshi Nishitani, Yuichiro Tsubaki, Satoshi Yamashita, Yasuhiro Ueda
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Publication number: 20120227806Abstract: Provided are an electrolyte composition useful in gelling or solidifying the electrolyte of a dye-sensitized solar cell, an electrolyte formed from the electrolyte composition, and a dye-sensitized solar cell. The electrolyte composition comprises a redox pair, an ionic liquid, and a photocrosslinkable liquid crystal polymer having a functional group represented by the following chemical formula (1) to form the electrolyte. Moreover, the dye-sensitized solar cell 1 comprises a photoelectrode 10, a counter electrode 20, and the photocrosslinked electrolyte 30 sandwiched between these two sheets of electrodes. In the formula m is 0 or 1; n is 1 to 3; c is 0 or 1; X is none, O, CH2, N?N, C?C, C?C, COO, or OCO; R1 and R2 are each representing H, an alkyl group, an alkyloxy group, or a halogen.Type: ApplicationFiled: November 17, 2010Publication date: September 13, 2012Applicant: HAYASHI ENGINEERING INC.Inventor: Takeya Sakai
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Patent number: 8263268Abstract: The present invention includes (1) an ester compound having a specific structure, (2) a nonaqueous electrolytic solution for lithium secondary battery comprising an electrolyte dissolved in a nonaqueous solvent and containing an ester compound having a specific structure in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution, which is excellent in initial battery capacity and cycle property, and (3) a lithium secondary battery comprising a positive electrode, a negative electrode and a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, wherein the nonaqueous electrolytic solution contains an ester compound having a specific structure in an amount of from 0.01 to 10% by weight of the nonaqueous electrolytic solution.Type: GrantFiled: February 1, 2008Date of Patent: September 11, 2012Assignee: UBE Industries, Ltd.Inventors: Koji Abe, Chisen Hashimoto
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Publication number: 20120224249Abstract: An ion-conductive thermoplastic compositions contains a partially acetalated polyvinyl alcohol, at least one support electrolyte and at least one plasticizer. The partially acetalated polyvinyl alcohol contains two different acetal units. Electrochromic laminated glass systems produced using the ion-conductive compositions and a method for producing the systems are also provided.Type: ApplicationFiled: May 16, 2012Publication date: September 6, 2012Applicant: Dritte Patentportfolio Beteiligungsgesellschaft mbH & Co. KGInventors: Holger STENZEL, Alexander KRAFT, Karl-Heinz HECKNER, Matthias ROTTMANN, Bernd PAPENFUHS, Martin STEUER
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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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Publication number: 20120219865Abstract: There are provided a nonaqueous-type electrolyte solution having high flame retardancy and a good capacity retention rate, and a device comprising the nonaqueous-type electrolyte solution. The nonaqueous-type electrolyte solution is used in a device comprising a positive electrode, a negative electrode and the nonaqueous-type electrolyte solution, and contains a lithium salt and a compound having a phosphazene structure, and further contains 0.05% by mass or more and 12.0% by mass or less of at least one disulfonate ester selected from a cyclic disulfonate ester and a chain disulfonate ester based on the total of the nonaqueous-type electrolyte solution.Type: ApplicationFiled: October 19, 2010Publication date: August 30, 2012Applicant: NEC ENERGY DEVICES, LTD.Inventors: Shinako Kaneko, Hitoshi Ishikawa, Yasutaka Kono, Yoko Hashizume
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Publication number: 20120214056Abstract: 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 a crosslinked solid polymer in contact with the first and second electrodes. At least one of the first and second electrodes includes a network of electrically connected particles comprising an electroactive material, and the particles of one electrode exert a repelling force on the other electrode when the first and second electrodes are combined with an uncrosslinked precursor to the solid polymer.Type: ApplicationFiled: November 18, 2011Publication date: August 23, 2012Applicant: A123 Systems, Inc.Inventors: Antoni S. Gozdz, Richard K. Holman, Andrew Loxley, Ronnie Wilkins
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Patent number: 8247118Abstract: A nonaqueous solvent for an electrical storage device according to the present invention includes fluorine-containing cyclic saturated hydrocarbon having a structure represented by the following general formula (1) in which one or two substituents R are introduced into a cyclohexane ring; a compound having a relative dielectric constant of 25 or higher; and a chain carbonate (in general formula (1), R is represented by CnX2n+1 where n is an integer of 1 or greater, at least one of (2n+1) pieces of X's is F, and the other X's are H).Type: GrantFiled: October 20, 2009Date of Patent: August 21, 2012Assignee: Panasonic CorporationInventors: Masaki Hasegawa, Takashi Takeuchi
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Patent number: 8247112Abstract: An object of the present invention is to provide an electrolyte solution for lithium-ion secondary batteries comprising a tetraalkylphosphonium salt which improves the cycle characteristics and safety of lithium-ion batteries, and to provide a lithium-ion secondary battery using the electrolyte solution. Disclosed is an electrolyte comprising a tetraalkylphosphonium salt represented by general formula (1) wherein R1 represents a linear, branched or alicyclic alkyl group having 2 to 6 carbon atoms and R2 represents a linear, branched or alicyclic alkyl group having 1 to 14 carbon atoms, provided that R1 and R2 are different from each other and the total number of carbon atoms in the phosphonium cation is 20 or less; and X represents an anion.Type: GrantFiled: September 11, 2007Date of Patent: August 21, 2012Assignee: Nippon Chemical Industrial Co., Ltd.Inventors: Katsuhiko Tsunashima, Masahiro Kikuchi
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Patent number: 8237529Abstract: Low-loss ferrite comprising 100% by mass of main components comprising 47.1-49.3% by mol of Fe2O3, 20-26% by mol of ZnO, and 6-14% by mol of CuO, the balance being NiO, and 0.1-2% by mass (as SnO2) of Sn and 0.05-2% by mass (as Mn3O4) of Mn, and having an average crystal grain size of 0.5-3 ?m.Type: GrantFiled: February 6, 2008Date of Patent: August 7, 2012Assignee: Hitachi Metals, Ltd.Inventors: Satoru Tanaka, Takeshi Tachibana
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Patent number: 8236191Abstract: The present invention provides an electrical double layer capacity comprising a non-aqueous electrolytic solution comprising (A) a solvent comprising a specific fluorine-containing cyclic carbonate and (B) an electrolyte salt comprising a cyclic quaternary onium salt comprising cyclic quaternary onium cation and PF6?, (CF3SO2)2N? or (C2F5SO2)2N?, and (C) a polarizable electrode, and having high withstanding voltage and assuring excellent solubility in a wide range of solvents for dissolving an electrolyte salt.Type: GrantFiled: January 11, 2008Date of Patent: August 7, 2012Assignee: Daikin Industries, Ltd.Inventors: Meiten Koh, Akiyoshi Yamauchi, Rumi Takeuchi, Michiru Tanaka
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Publication number: 20120187324Abstract: A method of forming an electrolyte solution involves combining ammonium tetrafluoroborate and a quaternary ammonium halide in a liquid solvent to form a quaternary ammonium tetrafluoroborate and an ammonium halide. The ammonium halide precipitate is removed from the solvent to form an electrolyte solution. The reactants can be added step-wise to the solvent, and the method can include using a stoichiometric excess of the ammonium tetrafluoroborate to form a substantially halide ion-free electrolyte solution.Type: ApplicationFiled: January 21, 2011Publication date: July 26, 2012Inventor: Kishor Purushottam Gadkaree
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Publication number: 20120183770Abstract: The present invention relates to the exfoliation and dispersion of carbon nanotubes resulting in high aspect ratio, surface-modified carbon nanotubes that are readily dispersed in various media. A method is disclosed for their production in high yield. Further modifications by surface active or modifying agents are also disclosed. Application of the carbon nanotubes of this invention as composites with materials such as elastomers, thermosets and thermoplastics are also described.Type: ApplicationFiled: June 20, 2011Publication date: July 19, 2012Inventors: Clive P. Bosnyak, Kurt W. Swogger
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Patent number: 8222515Abstract: An object of the present invention is to provide an electrolyte for photoelectric conversion elements, and a photoelectric conversion element and a dye-sensitized solar cell using the electrolyte, wherein high energy conversion efficiency can be achieved while substantially not including iodine. The electrolyte for a photoelectric conversion element of the present invention includes an ionic liquid (A) and a carbon material (B). The carbon material (B) is a carbon material (B1) displaying a pH, measured by a pH measuring method specified in Japanese Industry Standard (JIS) Z8802, of from 2 to 6 and/or a boron-modified acetylene black (B2). A content of the carbon material (B) is from 10 to 50 parts by mass per 100 parts by mass of the ionic liquid (A).Type: GrantFiled: December 25, 2009Date of Patent: July 17, 2012Assignee: The Yokohama Rubber Co., Ltd.Inventors: Yoshimasa Imazaki, Tsukasa Maruyama
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Patent number: 8216487Abstract: The invention relates to a copolymer of ethylene oxide or propylene oxide and at least one substituted oxirane bearing an ionic group. The copolymer is characterized in that its chain comprises repeat units —O—CH2—CH(—CH2—O—SO3?Li+)—, repeat units —O—CH2—CHR— in which R is H or CH3, optionally, repeat units —O—CH2—CH(—CH2R?)— in which R? is a functional group. x Uses: electrolyte in electrochemical, selective-membrane and reference-membrane devices.Type: GrantFiled: February 9, 2006Date of Patent: July 10, 2012Assignee: BatscapInventors: Jean-Yves Sanchez, Marc Deschamps, Fannie Alloin, Christophe Chauvin, Cristina Iojoiu
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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: 20120171581Abstract: Disclosed are a nonaqueous electrolytic solution of an electrolyte dissolved in a nonaqueous solvent, which contains a carboxylate represented by the following general formula (I) in an amount of from 0.01 to 10% by mass of the nonaqueous electrolytic solution; and an electrochemical element using it.Type: ApplicationFiled: September 14, 2010Publication date: July 5, 2012Applicant: UBE INDUSTRIES, LTD.Inventors: Koji Abe, Shoji Shikita, Kazuyuki Kawabe, Masahide Kondo, Tatsuo Fujino
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Publication number: 20120170172Abstract: An additive of the formula (1) for use in electrolytic solutions wherein A is —CH(X)— or —C?C(X)—, X being hydrogen, halogen, alkyl having 1 to 4 carbon atoms, alkoxycarbonyl having 2 to 5 carbon atoms, benzoyl or alkoxycarbonylalkyl having 3 to 9 carbon atoms, Q1 and Q2 are the same or different and are each alkyl having 1 to 6 carbon atoms, alkoxyl having 1 to 4 carbon atoms, alkoxycarbonylalkyl having 3 to 9 carbon atoms or amino having as a substituent alkyl having 1 to 4 carbon atoms, and A, Q1 and Q2 may form a ring structure.Type: ApplicationFiled: March 13, 2012Publication date: July 5, 2012Inventors: Akinori OKA, Hiroaki Shima, Shoji Hiketa, Yoshinobui Abe, Akihiro Nabeshima, Masatoshi Uetani
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Patent number: 8211577Abstract: A nonaqueous solvent for an electricity storage device according to the present invention comprises fluorine-containing cyclic saturated hydrocarbon having a structure which is represented by general formula (1) below and in which one or two substituents R are introduced into a cyclohexane ring (in general formula (1), R is represented by CnX2n+1, n is an integer of 1 or greater, at least one of (2n+1) pieces of X's is F, and the other X's are F or H).Type: GrantFiled: May 19, 2009Date of Patent: July 3, 2012Assignee: Panasonic CorporationInventors: Masaki Hasegawa, Takashi Takeuchi
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Patent number: 8211277Abstract: The present invention relates to compounds containing organofluorochlorophosphate anions, the preparation thereof and the use thereof, in particular as ionic liquids.Type: GrantFiled: December 7, 2007Date of Patent: July 3, 2012Assignee: Merck Patent GmbHInventors: Nikolai Ignatyev, German Bissky, Helge Willner
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Patent number: 8211578Abstract: An improved electrolyte for a cell having an anode comprising magnesium or magnesium alloy. The cell's cathode may desirably include iron disulfide (FeS2) as cathode active material. The improved electrolyte comprises a magnesium salt, preferably magnesium perchlorate dissolved in an organic solvent which preferably includes acetonitrile or mixture of tetrahydrofuran and propylene carbonate. The electrolyte includes an additive to retard the buildup of deleterious passivation coating on the magnesium anode surface, thereby enhancing cell performance. Such additive may preferably include 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4), 1-butyl-3-methylimidazolium hexafluorophosphate (BMIMPF6), lithium hexafluorophosphate (LiPF6), or aluminum chloride (AlCl3).Type: GrantFiled: June 9, 2009Date of Patent: July 3, 2012Assignee: The Gillette CompanyInventors: Zhiping Jiang, Rimma Sirotina, Nikolay Iltchev
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Publication number: 20120164542Abstract: To provide a non-aqueous electrolyte solution for storage battery devices which has high lithium salt solubility, high conductivity and excellent cycle characteristics, and a storage battery device wherein such a non-aqueous electrolyte solution is used. A non-aqueous electrolyte solution for storage battery devices, which comprises a specific lithium salt (A) and a solvent (B) containing a hydrofluoroether (b1) represented by CF3CH2OCF2CF2H and a carbonate type solvent (b2), wherein the content of the hydrofluoroether (b1) is from 1 to 30 vol % based on the total amount i.e. 100 vol % of the solvent (B); and a storage battery device wherein such a non-aqueous electrolyte solution for storage battery devices is used.Type: ApplicationFiled: March 5, 2012Publication date: June 28, 2012Applicant: Asahi Glass Company, LimitedInventor: Masao IWAYA
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Patent number: 8206853Abstract: 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: GrantFiled: June 23, 2006Date of Patent: June 26, 2012Assignees: SANYO Electric Co., Ltd., Mitsubishi Chemical CorporationInventors: Keiji Saisho, Hidekazu Yamamoto, Masahiro Takehara
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Publication number: 20120154892Abstract: An ion conductor includes a mixture including an electrolyte including a salt including inorganic or organic pairs of negative and positive ions, and a low-molecular liquid crystal material. Further, an impedance of the ion conductor varies in accordance with an increase of a voltage applied to the ion conductor due to an orientation response of the low-molecular liquid crystal material, the impedance being determined by an AC impedance method.Type: ApplicationFiled: December 12, 2011Publication date: June 21, 2012Applicant: RICOH COMPANY, LTD.Inventors: Tohru YASHIRO, Shigenobu Hirano, Koh Fujimura, Yoshihisa Naijo, Yoshinori Okada, Hiroyuki Takahashi, Akishige Murakami
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Publication number: 20120154981Abstract: The present invention provides a hybrid solid electrolyte membrane including a lithium electrolyte salt, an organic polymer, and an inorganic material, and a lithium ion capacitor comprising the same. It is possible to overcome damage of a separator and failure of a capacitor due to deposition of lithium ions on a cathode by using a hybrid solid electrolyte membrane in accordance with the present invention in a lithium ion capacitor. Further, it is possible to simplify manufacturing processes without a pre-doping process. Further, the hybrid solid electrolyte membrane can also perform a role of a separator.Type: ApplicationFiled: March 10, 2011Publication date: June 21, 2012Inventors: Sangkyun LEE, Jisung Cho, Baekyun Kim
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Publication number: 20120153211Abstract: An electrode structure has a layer of at least two interdigitated materials, a first material being an electrically conductive material and a second material being an ionically conductive material, the materials residing co-planarly on a membrane in fluid form, at least one of the interdigitated materials forming a feature having an aspect ratio greater than one.Type: ApplicationFiled: December 17, 2010Publication date: June 21, 2012Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: David K. Fork, Karl Littau
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Publication number: 20120145216Abstract: An object of the present invention is to provide a dye-sensitized solar cell comprising a solid electrolyte and having excellent thermostability, which has the excellent feature of retaining liquid so as to prevent an electrolyte solution from being exuded even under high temperature or pressurized conditions, and a dye-sensitized solar cell module using the same. Such dye-sensitized solar cell comprises: an electrode base material 10; a porous semiconductor layer 20 formed on the electrode base material 10 having a porous surface carrying a sensitized dye; a counter electrode 40, which is disposed so as to face the porous semiconductor layer 20; and an electrolyte layer 30 comprising a redox pair and cationic cellulose or a derivative thereof, which is formed between the electrode base material 10 and the counter electrode 40.Type: ApplicationFiled: February 2, 2012Publication date: June 14, 2012Applicant: Dai Nippon Printing Co., Ltd.Inventor: Ryo Fujiwara
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Publication number: 20120145235Abstract: An object of the present invention is to provide a dye-sensitized solar cell having a solid electrolyte layer and improved durability or photoelectric conversion efficiency. A dye-sensitized solar cell 1, which comprises: a conductive base material 10; a porous semiconductor layer 20 formed on the conductive base material 10 having a porous surface carrying a sensitized dye; a counter electrode 40, which is disposed so as to face the porous semiconductor layer 20; and an electrolyte layer 30 comprising potassium iodide and a thermoplastic cellulose resin, which is formed between the conductive base material 10 and the counter electrode 40.Type: ApplicationFiled: February 2, 2012Publication date: June 14, 2012Applicant: Dai Nippon Printing Co., Ltd.Inventors: Naohiro Obonai, Ryo Fujiwara
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Publication number: 20120141880Abstract: The electrical conductivity of ionically conductive polymers can be increased by polymerizing a mixture of a polymer precursor and an electrolyte in the presence of an electric field. Methods for making ionically conductive polymers can include providing a mixture containing an electrolyte and a polymer precursor, and polymerizing the polymer precursor while applying an electric field to the mixture. Ionically conductive polymers so prepared can be used in electrical devices. Methods for making electrical devices containing the ionically conductive polymers are also described.Type: ApplicationFiled: November 18, 2011Publication date: June 7, 2012Applicant: APPLIED NANOSTRUCTURED SOLUTIONS, LLCInventors: William Patrick BURGESS, Corey Adam FLEISCHER, Han LIU
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Patent number: 8187744Abstract: A non-aqueous electrolyte secondary battery is produced using a non-aqueous electrolyte including: a non-aqueous solvent that primarily contains a solvent mixture of ethylene carbonate and propylene carbonate and includes a fluorine-substituted ether having a divalent group represented by a formula: —CFX—CH(CH3)—O—, where X is a hydrogen atom or fluorine atom, in a molecule thereof; and a lithium salt that is dissolved in the non-aqueous solvent. The non-aqueous electrolyte has favorable wettability towards a polyolefin separator, and improves the cycle characteristics and the load characteristics of the non-aqueous electrolyte secondary battery.Type: GrantFiled: June 23, 2009Date of Patent: May 29, 2012Assignee: Panasonic CorporationInventors: Tooru Matsui, Tetsuo Nanno, Hiroshi Yoshizawa
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Publication number: 20120126931Abstract: This invention relates to an electrolyte composition comprising an ionic liquid, a gellant selected from a cellulose derivative, gelatine and combinations thereof, and a radiation-curabie base.Type: ApplicationFiled: March 12, 2010Publication date: May 24, 2012Applicant: SERICOL LIMITEDInventors: Adam Joseph Howard Batting, Timothy Geoffrey Owen, Mats Standberg, Anurak Sawatdee, Xin Wang, Anna Malmstrom, Marie Nilsson, Lars-Olov Hennerdal
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Publication number: 20120125422Abstract: A gel electrolyte for a dye sensitized solar cell and a dye sensitized solar cell including the gel electrolyte. The gel electrolyte includes: a redox couple generated from a polymer-iodine complex and an iodide salt; inorganic nanoparticles; and a high-viscosity organic solvent.Type: ApplicationFiled: April 12, 2011Publication date: May 24, 2012Inventors: Moon-Sung Kang, Ji-Won Lee, Byong-Cheol Shin, Si-Young Cha, Myung-Seop Kim
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Publication number: 20120127631Abstract: The present invention relates to electrolyte systems and electrochemical cells comprising conductive salts having different anionic and/or cationic radii.Type: ApplicationFiled: July 6, 2010Publication date: May 24, 2012Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventors: Michael Schmidt, Guenter Semrau
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Patent number: 8182949Abstract: A polymer electrolyte membrane comprising as a main ingredient a block copolymer (P) which comprises, as its constituents, a vinyl alcoholic polymer block (A) and a polymer block (B) having ion-conducting groups, which block copolymer (P) is cross-linking treated, and a membrane-electrode assembly and a fuel cell using the polymer electrolyte membrane, respectively. Preferred as polymer block (B) is one having a styrene or vinylnaphthalene skeleton or a 2-(meth)acrylamido-2-methylpropane skeleton. The ion-conducting group includes a sulfonic acid group, a phosphonic acid group or the like.Type: GrantFiled: January 11, 2008Date of Patent: May 22, 2012Assignee: Kuraray Co., Ltd.Inventors: Hiroyuki Ohgi, Tomohiro Ono, Shinji Nakai, Takeshi Nakano, Takeshi Kusudou, Naoki Fujiwara
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Patent number: 8178246Abstract: The present invention provides a nonaqueous electrolytic solution which can give excellent cycle characteristics. The nonaqueous electrolytic solution contains a linear carbonate represented by the formula (1): wherein, in the formula (1), Xa represents each independently hydrogen or any group; Ra represents optionally substituted alkyl; and n represents an integer of zero or more.Type: GrantFiled: June 9, 2006Date of Patent: May 15, 2012Assignee: Mitsubishi Chemical CorporationInventor: Noriko Shima
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Patent number: 8177994Abstract: The present invention provides an electrolytic solution for aluminum electrolytic capacitors which has a high sparking voltage while maintaining its specific conductivity at 30° C. of 4 to 25 mS/cm and which has no possibility of corroding capacitor elements, and an aluminum electrolytic capacitor using the same. The electrolytic solution of the present invention is characterized as being an electrolytic solution containing an electrolyte (C) composed of an alkyl phosphate anion (A) represented by formula (1) or (2) given below and a cation (B), and an organic solvent (D), wherein the content of phosphoric acid in the electrolytic solution is 1% by weight or less: wherein R1 is an alkyl group having 1 to 10 carbon atoms and R2 is a hydrogen atom or an alkyl group having 1 to 10 carbon atoms.Type: GrantFiled: June 6, 2007Date of Patent: May 15, 2012Assignee: Sanyo Chemical Industries, Ltd.Inventors: Shinya Taguchi, Shinya Sasada, Azusa Kameo
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Patent number: 8173298Abstract: An electrolyte for a lithium battery includes a non-aqueous organic solvent, a lithium salt, and an additive comprising a) a compound represented by the following Formula (1), and b) a compound selected from the group consisting of a sulfone-based compound, a poly(ester)(metha)acrylate, a polymer of poly(ester)(metha)acrylate, and a mixture thereof: wherein R1 is a C1 to C10 alkyl, a C1 to C10 alkoxy, or a C6 to C10 aryl, and preferably a methyl, ethyl, or methoxy, X is a halogen, and m and n are integers ranging from 1 to 5, where m+n is less than or equal to 6.Type: GrantFiled: February 23, 2011Date of Patent: May 8, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Jun-Ho Kim, Ha-Young Lee, Sang-Hoon Choy, Ho-Sung Kim, Hyeong-Gon Noh
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Film former-free electrolyte/separator system and use thereof in electrochemical energy accumulators
Patent number: 8173305Abstract: The invention relates to an electrolyte separator system comprising an ionic liquid, a conductive salt and a ceramic separator, and the use of the electrolyte separator system according to the invention in electrochemical energy storage systems, in particular of lithium metal and lithium ion batteries.Type: GrantFiled: April 27, 2006Date of Patent: May 8, 2012Assignee: Evonik Degussa GmbHInventors: Michael Holzapfel, Petr Novák, Carsten Jost, Anna Prodi-Schwab, Volker Hennige, Christian Hying -
Publication number: 20120104308Abstract: A composition for a solid electrolyte includes a polymer compound (A) and a charge transfer material. The polymer compound (A) is obtained by polymerizing a monomer (a) comprising a monomer (a-2) having chelating ability. The charge transfer material is preferably a carbon material and/or a ?-conjugated polymer (?). When a polymer electrolyte layer of a dye-sensitized solar cell is formed from the above solid electrolyte, efficient charge transfer and sufficient charge life can be reconciled with each other.Type: ApplicationFiled: July 7, 2010Publication date: May 3, 2012Applicant: Soken Chemical & Engineering Co., Ltd.Inventors: Syuji Okamoto, Fumiaki Kobayashi
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Publication number: 20120105933Abstract: There is provided a composition for electrochromic devices which clearly present only two states, a white-colored state and a decolored state. The composition for electrochromic devices contains (A) a specific quaternary ammonium salt, (B) a supporting electrolyte containing bromide ion, and (C) a solvent containing water as an essential component, and (A) is soluble in (C).Type: ApplicationFiled: October 27, 2011Publication date: May 3, 2012Applicants: JNC CORPORATION, NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITYInventors: Katsuyoshi HOSHINO, Yosuke Oikawa, Mai Ando, Ryota Nakajima, Katsuyuki Murashiro, Toshiki Komatsu
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Publication number: 20120107726Abstract: According to this invention, a process for producing fluorine containing polymer to obtain composite polymer electrolyte composition having excellent ion transport number, that is, ion transfer coefficient, for example, excellent transport number of lithium ion, is provided. A process for producing fluorine containing polymer comprising graft-polymerizing a molten salt monomer having a polymerizable functional group and a quaternary ammonium salt structure having a quaternary ammonium cation and anion, with a polymer having the following unit; —(CR1R2—CFX)— X means halogen atom except fluorine atom, R1 and R2 mean hydrogen or fluorine atom, each is same or different atom.Type: ApplicationFiled: March 30, 2010Publication date: May 3, 2012Applicant: PIOTREK CO., LTD.Inventors: Naoya Ogata, Fumito Yamai, Tsutomu Sada
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Publication number: 20120106027Abstract: A method for decreasing resistivity of an electrolyte for an electric double-layer capacitor is provided. In this method, an aqueous electrolyte solution comprising LiNO3 and LiOH in a molar ratio of 1:9 to 9:1 is prepared first, and then purged with nitrogen or oxygen. An electric double-layer capacitor having the gas-purging aqueous electrolyte solution above is also provided.Type: ApplicationFiled: December 30, 2011Publication date: May 3, 2012Applicant: TAIWAN TEXTILE RESEARCH INSTITUTEInventors: Wen-Hsien Ho, Chung-Bo Tsai, Po-Chou Chen, Shao-Wei Chieh
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Patent number: 8168349Abstract: A fuel cell-purpose electrolyte material having a structural unit represented by a general formula (1): where n is 0 or a positive integer, and R1 represents H or CH3, and R2 represents (CH2)mSO3H (m is 0 or a positive integer).Type: GrantFiled: February 22, 2007Date of Patent: May 1, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Masayoshi Takami, Toshihiko Yoshida, Masahiro Ueda, Yuri Tomisaka
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Publication number: 20120100417Abstract: Electrolyte compositions suitable for use in batteries, such as a lithium ion battery, are disclosed The electrolyte compositions include functionalized metal oxide particles In several embodiments the compositions utilize the presence of solvent or a scavenger Methods of making and using electrolyte compositions are also disclosed Articles of manufacture containing an electrolyte composition are also disclosedType: ApplicationFiled: June 17, 2010Publication date: April 26, 2012Inventor: Dorai Ramprasad
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Patent number: 8163195Abstract: An additive of the formula (1) for use in electrolytic solutions wherein A is —CH(X)— or —C?C(X)—, X being hydrogen, halogen, alkyl having 1 to 4 carbon atoms, alkoxycarbonyl having 2 to 5 carbon atoms, benzoyl or alkoxycarbonylalkyl having 3 to 9 carbon atoms, Q1 and Q2 are the same or different and are each alkyl having 1 to 6 carbon atoms, alkoxyl having 1 to 4 carbon atoms, alkoxycarbonylalkyl having 3 to 9 carbon atoms or amino having as a substituent alkyl having 1 to 4 carbon atoms, and A, Q1 and Q2 may form a ring structure.Type: GrantFiled: June 29, 2007Date of Patent: April 24, 2012Assignee: Otsuka Chemical Co., Ltd.Inventors: Akinori Oka, Hiroaki Shima, Shoji Hiketa, Yoshinobu Abe, Akihiro Nabeshima, Masatoshi Uetani
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Patent number: 8163427Abstract: A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non-aqueous solvent. The non-aqueous electrolytic solution further contains a vinylene carbonate compound in an amount of 0.01 to 10 wt. %, and an alkyne compound in an amount of 0.01 to 10 wt. %.Type: GrantFiled: July 16, 2004Date of Patent: April 24, 2012Assignee: Ube Industries, Ltd.Inventors: Koji Abe, Kazuhiro Miyoshi, Takaaki Kuwata
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Patent number: 8163422Abstract: There is provided an electrochemical device provided with an electrolytic solution comprising (I) a solvent for dissolving an electrolyte salt comprising (A) a fluorine-containing ether represented by the formula (1): Rf1—O—Rf2 wherein Rf1 and Rf2 are the same or different and each is a fluorine-containing alkyl group having 3 to 6 carbon atoms, (B) a cyclic carbonate, and (C) a chain carbonate being compatible with both of the fluorine-containing ether (A) and the cyclic carbonate (B), and (II) an electrolyte salt, in which the solvent (I) for dissolving an electrolyte salt comprises 30 to 60% by volume of the fluorine-containing ether (A), 3 to 40% by volume of the cyclic carbonate (B) and 10 to 67% by volume of the chain carbonate (C) based on the whole solvent (I), and when the electrochemical device is provided with such an electrolytic solution, no phase separation occurs even at low temperature, flame retardancy and heat resistance are excellent, solubility of an electrolyte salt is high, dischargeType: GrantFiled: July 12, 2007Date of Patent: April 24, 2012Assignee: Daikin Industries, Ltd.Inventors: Meiten Koh, Hideo Sakata, Hitomi Nakazawa, Michiru Tanaka, Akiyoshi Yamauchi