Electrolytes For Electrical Devices (e.g., Rectifier, Condenser) Patents (Class 252/62.2)
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Patent number: 8883357Abstract: A ceramic material that can exhibit sufficient compactness and lithium (Li) conductivity to enable the use thereof as a solid electrolyte material for a lithium secondary battery and the like is provided. The ceramic material contains aluminum (Al) and has a garnet-type crystal structure or a garnet-like crystal structure containing lithium (Li), lanthanum (La), zirconium (Zr) and oxygen (O).Type: GrantFiled: August 19, 2009Date of Patent: November 11, 2014Assignee: NGK Insulators, Ltd.Inventors: Toshihiro Yoshida, Akihiko Honda, Yosuke Sato
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Patent number: 8877390Abstract: 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: GrantFiled: May 23, 2011Date of Patent: November 4, 2014Assignee: UChicago Argonne, LLCInventors: Wei Weng, Zhengcheng Zhang, Khalil Amine
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Patent number: 8871384Abstract: There is provided a non-aqueous electrolytic solution comprising an electrolyte salt, a specific fluorine-containing solvent and a fluorine-containing cyclic carbonate represented by the formula (A1): wherein X1 to X4 are the same or different and each is —H, —F, —CF3, —CHF2, —CH2F, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3; at least one of X1 to X4 is —F, —CF3, —CF2CF3, —CH2CF3 or —CH2OCH2CF2CF3, and the non-aqueous electrolytic solution has further excellent noncombustibility and is suitable for lithium secondary batteries.Type: GrantFiled: February 5, 2008Date of Patent: October 28, 2014Assignee: Daikin Industries, Ltd.Inventors: Meiten Koh, Hideo Sakata, Hitomi Nakazawa, Michiru Tanaka, Akiyoshi Yamauchi
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Publication number: 20140315096Abstract: In some embodiments, the present disclosure pertains to energy storage compositions that comprise a clay and an ionic liquid. In some embodiments, the clay is a bentonite clay and the ionic liquid is a room temperature ionic liquid (RTIL). In some embodiments, the clay and the ionic liquid are present in the energy storage compositions of the present disclosure in a weight ratio of 1:1. In some embodiments, the ionic liquid further comprises a lithium-containing salt that is dissolved in the ionic liquid. In some embodiments, the energy storage compositions of the present disclosure further comprise a thermoplastic polymer, such as polyurethane. In some embodiments, the thermoplastic polymer constitutes about 10% by weight of the energy storage composition. In some embodiments, the energy storage compositions of the present disclosure are associated with components of energy storage devices, such as electrodes and separators.Type: ApplicationFiled: February 26, 2014Publication date: October 23, 2014Applicants: Universidade Federal de Minas Gerais, William Marsh Rice UniversityInventors: Raquel Silveira Borges, Kaushik Kalaga, Marco Tulio Fonseca Rodrigues, Hemtej Gullapalli, Leela Mohana Reddy Arava, Kaushik Balakrishnan, Glaura Goulart Silva, Pulickel M. Ajayan
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Patent number: 8865350Abstract: A nonaqueous electrolyte battery is provided and includes a positive electrode, a negative electrode having a negative electrode active material layer containing a negative electrode active material, a separator disposed between the positive electrode and the negative electrode, and a non-fluid electrolyte. The non-fluid electrolyte contains an electrolyte salt, a nonaqueous solvent, an orthoester compound represented by the following formula (1), and at least one member selected from the group consisting of cyclic carbonate compounds represented by the following formula (2) to (5). A volume viscosity of the negative electrode active material layer is 1.50 g/cc or more and not more than 1.75 g/cc, and a specific surface area of the negative electrode active material is 0.8 m2/g or more and not more than 4.Type: GrantFiled: February 11, 2011Date of Patent: October 21, 2014Assignee: Sony CorporationInventors: Ichiro Yamada, Tadahiko Kubota
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Patent number: 8865354Abstract: An inorganic solid electrolyte glass phase composite is provided comprising a substance of the general formula La2/3-xLi3xTiO3 wherein x ranges from about 0.04 to about 0.17, and a glass material. The glass material is one or more compounds selected from Li2O, Li2S, Li2SO4, Li3PO4, B2O3, P2O5, P2O3, Al2O3, SiO2, CaO, MgO, BaO, TiO2, GeO2, SiS2, Sb2O3, SnS, TaS2, P2S5, B2S3, and a combination of two or more thereof. A lithium-ion conducting solid electrolyte composite is disclosed comprising a lithium-ion conductive substance of the general formula La2/3-xLi3xTiO3—Z wherein x ranges form about 0.04 to 0.17, and wherein “Z” is the glass material identified above. A battery is disclosed having at least one cathode and anode and an inorganic solid electrolyte glass phase composite as described above disposed on or between at least one of the cathode and the anode.Type: GrantFiled: March 29, 2011Date of Patent: October 21, 2014Assignee: West Virginia UniversityInventors: Hui Zhang, Yinglu Jiang, Xingbo Liu
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Patent number: 8865353Abstract: A nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, containing a hydantoin compound represented by the following general formula (I) in an amount of from 0.01 to 5% by mass of the nonaqueous electrolytic solution, and excellent in battery characteristics such as high-temperature storage property and cycle property. (In the formula, R1 and R2 each represent a methyl group or an ethyl group; R3 and R4 each represent a hydrogen atom, a methyl group or an ethyl group.Type: GrantFiled: August 4, 2009Date of Patent: October 21, 2014Assignee: Ube Industries, Ltd.Inventors: Koji Abe, Masahide Kondo
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Publication number: 20140307302Abstract: A directly addressable display device comprising at least one pixel cell (1-9), each pixel cell (1-9) being arranged for displaying a symbol, which symbol is repeatedly switchable between an on-state and an off-state, wherein each pixel cell (1-9) comprises an electrochromic layer (110) comprising an electrochromic and electrochemically active organic polymer material being electrochemically switchable between two different visually detectable coloring states; a counter electrode layer (140) comprising an electronically conductive material, wherein said counter electrode layer (140) in the viewing direction of the display device is arranged behind said electrochromic layer (110); an electrolyte layer (130), which electrolyte layer (130) is solid and arranged spatially between, and in ionic contact with, said electrochromic layer (110) and said counter electrode layer (140); a symbol defining layer (120) which is electronically and ionically insulating, arranged in direct ionic contact with said electrochromicType: ApplicationFiled: October 5, 2012Publication date: October 16, 2014Applicant: ACREO SWEDISH ICT ABInventors: Peter Andersson Ersman, Mats Sandberg
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Publication number: 20140299190Abstract: An electrolyte for a dye sensitized solar cell includes lithium perchlorate and 1-methylbenzimidazole, and when the electrolyte is applied to a dye sensitized solar cell, deterioration of lifespan characteristics due to rapid Jsc deterioration is suppressed.Type: ApplicationFiled: November 11, 2013Publication date: October 9, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Sang-Hyun Eom, Si-Young Cha
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Publication number: 20140302386Abstract: The invention relates to compounds comprising a redox group, to the use thereof as an additive to an electrolyte composition, to an electrolyte composition including such an additive, and to electrochemical systems including such an electrolyte composition, in particular lithium or sodium batteries and supercapacitors having a double electric layer.Type: ApplicationFiled: May 10, 2012Publication date: October 9, 2014Inventors: Joel Gaubicher, Lenaic Madec, Andrey Bouvree, Philippe Blanchard, Bernard Lestriez, Thierry Brousse, Dominique Guyomard
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Publication number: 20140291568Abstract: A non-aqueous electrolyte solution for an electric double-layer capacitor includes a non-aqueous solvent in which electrolyte salt is dissolved. The non-aqueous electrolyte solution is characterized in that the non-aqueous solvent is a mixed solvent of chained sulfone and cyclic lactone compound. The non-aqueous electrolyte solution can suppress increase in the resistance value of the electric storage element even in a low-temperature environment below 0° C. and can also be used in a normal-temperature environment.Type: ApplicationFiled: February 16, 2012Publication date: October 2, 2014Applicant: TAIYO YUDEN CO., LTD.Inventors: Aya Suto, Takeo Tsuzuki, Takatoshi Nagase
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Publication number: 20140293514Abstract: A composition for forming an electroactive coating is described, including an acid as a polymerization catalyst, at least one functional component, and at least one compound of formula (1) as a monomer: wherein X is selected from S, O, Se, Te, PR2 and NR2, Y is hydrogen (H) or a precursor of a good leaving group Y? whose conjugate acid (HY) has a pKa of less than 30, Z is hydrogen (H), silyl, or a good leaving group whose conjugate acid (HY) has a pKa of less than 30, b is 0, 1 or 2, each R1 is a substituent, and the at least one compound of formula (1) includes at least one compound of formula (1) with Z=H and Y?H.Type: ApplicationFiled: June 17, 2014Publication date: October 2, 2014Inventors: Chien-Chung Han, Ting-Chia Ku, Jo-Wen Chiang
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Patent number: 8846246Abstract: The invention generally encompasses phosphonium ionic liquids and compositions and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as battery electrolytes, as a heat transfer medium, fuel cells and electrochromatic devices, among other applications. In particular, the invention generally relates to phosphonium ionic liquids, compositions and molecules possessing structural features, wherein the molecules exhibit superior combination of thermodynamic stability, low volatility, wide liquidus range and ionic conductivity. The invention further encompasses methods of making such phosphonium ionic liquids, compositions and molecules, and operational devices and systems comprising the same.Type: GrantFiled: July 13, 2009Date of Patent: September 30, 2014Assignee: eSionic ES, Inc.Inventors: J. Adrian Hawkins, David A. Hudgins, Levi J. Irwin
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Publication number: 20140284514Abstract: The invention provides an electrolytic solution for an aluminum electrolyte capacitor with which there is little deterioration of the electrolytic solution properties, the sparking voltage is high, and shorting does not occur, even when the voltage used is high. The invention also provides an electrolyte (C) formed from anions of at least one phosphoric acid alkyl ester (A) and amidinium cations (B), at least one boric acid compound (F) selected from the group consisting of boric acid and boric acid esters, a C2-15 carboxylic acid (D) formed from carbon atoms, oxygen atoms, and hydrogen atoms only, and an organic solvent (E).Type: ApplicationFiled: October 2, 2012Publication date: September 25, 2014Applicant: SANYO CHEMICAL INDUSTRIES, LTD.Inventor: Yoshihiko Akazawa
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Publication number: 20140275286Abstract: In various embodiments a carbon nanotube molecular rebar formulation comprising a specific composition is disclosed. The composition comprises discrete carbon nanotubes that have at least a portion of the carbon nanotubes with a number average (ratio of number average contour length to end to end length) of greater than 1.1 and up to about 3. These discrete carbon nanotubes having the specified ratio of number average (tube contour length (TCL) to number average tube end-end length) ratio are not only discrete (separated) from one another, but are also controlled in their alignment such that processability and mechanical strength properties are both enhanced. Utility of the molecular rebar composition includes, but is not limited to improved composites, engineered materials, foams, sealants, coatings and adhesives, energy devices such as photovoltaics, batteries and capacitors, sensors and separation membranes.Type: ApplicationFiled: March 13, 2014Publication date: September 18, 2014Applicant: Molecular Rebar Design, LLCInventors: Clive P. Bosnyak, Kurt W. Swogger
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Publication number: 20140251433Abstract: In one aspect, an electrolyte for a dye-sensitized solar cell and a dye-sensitized solar cell including the same are provided.Type: ApplicationFiled: August 20, 2013Publication date: September 11, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Si-Young Cha, Ji-Won Lee, Moon-Sung Kang, Maeng-Eun Lee, Yong-Soo Kang, Woo-Hyung Cho
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Patent number: 8828261Abstract: 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 diethylene 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: GrantFiled: October 22, 2010Date of Patent: September 9, 2014Assignees: Panasonic Corporation, Sanyo Chemical Industries, Ltd.Inventors: Satoshi Nishitani, Yuichiro Tsubaki, Satoshi Yamashita, Yasuhiro Ueda
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Patent number: 8829201Abstract: The present invention relates to electrolyte formulations comprising at least one imidazolium difluorodicyanoborate or pyrrolidinium difluorodicyanoborate and their use in an electrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot-sensitized solar cell.Type: GrantFiled: July 6, 2012Date of Patent: September 9, 2014Assignee: Merck Patent GmbHInventors: Kentaro Kawata, Hiroki Yoshizaki, Hiromi Shinohara, Peer Kirsch, Nikolai (Mykola) Ignatyev, William-Robert Pitner, Emil Ferdinand Aust, Marlies Waterman
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Patent number: 8828611Abstract: Disclosed is a non-aqueous electrolyte comprising: a first acrylate compound having one or two acryl groups; a second acrylate compound having three or more acryl groups; an electrolyte salt; and an organic solvent. Also, disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of a first acrylate compound having one or two acryl groups; and (ii) a reduced form of a second acrylate compound having three or more acryl groups. Further, disclosed in an electrochemical device comprising a cathode, an anode, a separator and a non-aqueous electrolyte, wherein (i) the non-aqueous electrolyte is the above non-aqueous electrolyte; and/or (ii) the cathode and/or the anode is the above electrode.Type: GrantFiled: September 19, 2007Date of Patent: September 9, 2014Assignee: LG Chem, Ltd.Inventors: Su-Jin Yoon, Jeong-Ju Cho, Ho-Chun Lee
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Publication number: 20140238491Abstract: An electrolyte for a dye-sensitized solar cell includes a redox derivative; and a solvent mixture in which a nitrile-based compound having a C3-C10 linear carbon chain and a sulfoxide-based compound are mixed in a volume ratio of about 1:9 to about 9:1. A dye-sensitized solar cell including the electrolyte may have improved durability and performance such as energy conversion efficiency and light conversion efficiency.Type: ApplicationFiled: September 16, 2013Publication date: August 28, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Si-Young Cha, Sang-Hyun Eom
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Patent number: 8808565Abstract: A nanoparticle to which an imidazolium salt is chemically bonded, a method of preparing the same, and a nanogel electrolyte for dye-sensitized solar cells comprising the same are disclosed. The present invention may provide a dye-sensitive solar cell with good economic feasibility, stability and photoelectric conversion efficiency using the nanogel electrolyte, wherein the nanogel electrolyte may reduce the concentration of ionic liquids and preparation costs while improving economic feasibility, long term stability, and photoelectric conversion efficiency.Type: GrantFiled: July 19, 2012Date of Patent: August 19, 2014Assignee: Korea Institute of Energy ResearchInventors: Chi-Hwan Han, Tae-Yeon Cho, Sang-Hoon Bae, Kwan-Woo Ko, Jae-Hyung Bak
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Patent number: 8802319Abstract: The present invention relates to block copolymer electrolyte composite membranes with improved ionic conductivity. The block copolymer electrolyte composite membrane in accordance with an aspect of the present invention can comprise a plate-like inorganic filler as surface-modified with a sulfonic group; and a block copolymer comprising at least one selected from the group consisting of a sulfonic group, a carbonic acid group, and a phosphoric acid group.Type: GrantFiled: November 7, 2011Date of Patent: August 12, 2014Assignee: Korea Institute of Science and TechnologyInventors: Chong-Min Koo, Soon-Man Hong, Seung-Sang Hwang, Kyung-Youl Baek, Jang-Woo Lee, Jin-Hong Lee, Youn-Duk Park, Kyung-ho Min, Ji-Young Jung
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Publication number: 20140217322Abstract: A lithium-ion capacitor includes a non-aqueous electrolyte solution that includes (A) a compound represented by the following general formula (1), (B) a cyclic carbonate ester that includes at least one carbon-carbon unsaturated bond, and (C) a carboxylic ester, the non-aqueous electrolyte solution having a ratio (MB/MC) of 0.001 to 0.5, the ratio (MB/MC) being the ratio of the content (MB) (mmol/g) of the cyclic carbonate ester (B) to the content (MC) (mmol/g) of the carboxylic ester (C). Z+.[X(CN)m(Y)n]???(1) wherein X is at least one element selected from boron, aluminum, silicon, phosphorus, and arsenic, Y is a halogen, Z is lithium or magnesium, m is an integer from 3 to 6, and n is an integer from 0 to 5, provided that m+n?3.Type: ApplicationFiled: January 17, 2012Publication date: August 7, 2014Applicant: JSR CORPORATIONInventors: Kinji Yamada, Ho-Jin Lee, Toshimitsu Kikuchi, Taisuke Kasahara, Hiromoto Katsuyama
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Publication number: 20140220456Abstract: The present application is generally directed to energy storage materials such as activated carbon comprising enhanced particle packing properties and devices containing the same. The energy storage materials find utility in any number of devices, for example, in electric double layer capacitance devices and batteries. Methods for making the energy storage materials are also disclosed.Type: ApplicationFiled: January 8, 2014Publication date: August 7, 2014Applicant: EnerG2 Technologies, Inc.Inventors: Henry R. Costantino, Chad Goodwin, William D. Scott, Aaron M. Feaver
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Patent number: 8795903Abstract: The invention discloses various embodiments of Li-ion electrolytes containing flame retardant additives that have delivered good performance over a wide temperature range, good cycle life characteristics, and improved safety characteristics, namely, reduced flammability. In one embodiment of the invention there is provided an electrolyte for use in a lithium-ion electrochemical cell, the electrolyte comprising a mixture of an ethylene carbonate (EC), an ethyl methyl carbonate (EMC), a fluorinated co-solvent, a flame retardant additive, and a lithium salt. In another embodiment of the invention there is provided an electrolyte for use in a lithium-ion electrochemical cell, the electrolyte comprising a mixture of an ethylene carbonate (EC), an ethyl methyl carbonate (EMC), a flame retardant additive, a solid electrolyte interface (SEI) film forming agent, and a lithium salt.Type: GrantFiled: August 18, 2009Date of Patent: August 5, 2014Assignee: California Institute of TechnologyInventors: Marshall C. Smart, Kiah A. Smith, Ratnakumar V. Bugga, Surya G. Prakash, Frederick Charles Krause
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Patent number: 8795544Abstract: One object is to provide a power storage device including an electrolyte using a room-temperature ionic liquid which includes a univalent anion and a cyclic quaternary ammonium cation having excellent reduction resistance. Another object is to provide a high-performance power storage device. A room-temperature ionic liquid which includes a cyclic quaternary ammonium cation represented by a general formula (G1) below is used for an electrolyte of a power storage device. In the general formula (G1), one or two of R1 to R5 are any of an alkyl group having 1 to 20 carbon atoms, a methoxy group, a methoxymethyl group, and a methoxyethyl group. The other three or four of R1 to R5 are hydrogen atoms. A? is a univalent imide anion, a univalent methide anion, a perfluoroalkyl sulfonic acid anion, tetrafluoroborate (BF4?), or hexafluorophosphate (PF6?).Type: GrantFiled: June 23, 2011Date of Patent: August 5, 2014Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kyosuke Ito, Toru Itakura
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Publication number: 20140209829Abstract: This invention relates to coloured polymer particles prepared by a reverse emulsion solvent removal process, electrophoretic fluids comprising such particles, and electrophoretic display devices comprising such fluids.Type: ApplicationFiled: July 28, 2012Publication date: July 31, 2014Applicant: Merck Patent GmbHInventors: Louise Diane Farrand, Jonathan Henry Wilson, Emily Jane Thomas, Ashley Nathan Smith
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Publication number: 20140211374Abstract: There is provided a conductive polymer having high conductivity with excellent heat resistance. Using the conductive polymer, there can be provided solid electrolytic capacitors having low ESR, high reliability, and less leakage current. There can be also provided conductive films having high conductivity and superior heat resistance. There is provided a conductive polymer dispersion liquid obtained by a method in which in the presence of a copolymer from styrenesulfonic acid, and at least one kind of a non-sulfonic acid monomer selected from the group consisting of methacrylate, acrylate, and an unsaturated hydrocarbon containing alkoxysilane compound or its hydrolysate, thiophene or its derivative is polymerized by oxidation polymerization in water, or in an aqueous solution comprising a mixture of water and a water miscible solvent to produce the conductive polymer dispersion liquid. Using the conductive polymer as solid electrolyte, a solid electrolyte capacitor can be provided.Type: ApplicationFiled: August 24, 2012Publication date: July 31, 2014Applicant: TAYCA CORPORATIONInventors: Ryosuke Sugihara, Kei Hirota, Kazuto Fujihara
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Publication number: 20140213807Abstract: The present disclosure is directed to methods of preparing stable suspensions of precious metal nanoparticles and methods for attaching bio-molecules to the nanoparticles. The formation of nanoparticles can be accomplished by either chemical synthesis or pulsed laser ablation in a liquid. The present disclosure reveals the importance of controlling the conductivity of the dispersion medium during pulsed laser ablation in a liquid to control the particle size of the nanoparticles. The present disclosure also reveals the importance of adjusting and maintaining the conductivity in a range of 25 ?S/cm or less during storage of the nanoparticles and just prior to performing bioconjugation reactions. The control of conductivity is an important process for maintaining the nanoparticles as a stable non-aggregated colloidal suspension in a dispersion medium.Type: ApplicationFiled: January 23, 2014Publication date: July 31, 2014Inventors: Yuki Ichikawa, Andrius Marcinkevicus, Masayuki Ito, Wei Qian
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Patent number: 8790537Abstract: The present invention provides a process for the preparation of solid polymer electrolytes using ionic liquids useful for electrochromic devices or electrochromic windows, which used an insitu polymerized solid polymer electrolyte encompassing an ionic liquid. Therefore the electrolyte is free from leakage, corrosion, side reaction and moisture sensitivity. The synthesis of polymeric electrolyte comprising of Ionic liquid containing at least one of the anions selected from the group of trifluoromethylsulfonate (CF3SO3?), bis(trifluoromethylsulfonyl)imide [(CF3SO2)2N?] and bis(perfluoroethylsulfonyl)imide [(C2F5SO2)2N?], while varying the alkyl chain of the imidazolium ring is described and a simple method for preparing Ionic liquids has also been discussed. A method for preparing substantially pure molten salts i.e. ionic liquids is also described. Another objective of the present invention is to provide an electrochromic device utilizing these systems.Type: GrantFiled: May 6, 2009Date of Patent: July 29, 2014Assignee: Council of Scientific & Industrial ResearchInventors: Shahzada Ahmad, Suhasini Avinash Agnihotry, Melepurath Deepa
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Publication number: 20140205910Abstract: The invention is directed to an electrode which has been coated with the solid ion conductor which has a garnet-like crystal structure and has the stoichiometric composition L7+xAxG3?xZr2O12, wherein L is in each case independently a monovalent cation, A is in each case independently a divalent cation, G is in each case independently a trivalent cation, 0?x?3 and O can be partly or completely replaced by divalent or trivalent anion.Type: ApplicationFiled: February 6, 2014Publication date: July 24, 2014Applicant: BASF SEInventors: Werner Weppner, Ramaswamy Murugan
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Patent number: 8785013Abstract: Compositions containing modified fullerenes and their use, for example, as films for membranes in electrode assemblies for electrochemical cells and fuel cells such as fuel cells are described.Type: GrantFiled: August 17, 2005Date of Patent: July 22, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Paul J. Krusic, Helen S. M. Lu, Zhen-Yu Yang
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Publication number: 20140199585Abstract: Synthesis of molecules and salts is disclosed having low average symmetry and their use in many applications, including but not limited to: as electrolytes in electronic devices such as memory devices including static, permanent and dynamic random access memory, as electrolytes in energy storage devices such as batteries, electrochemical double layer capacitors (EDLCs) or supercapacitors or ultracapacitors, electrolytic capacitors, as electrolytes in dye-sensitized solar cells (DSSCs), as electrolytes in fuel cells, as a heat transfer medium, high temperature reaction and/or extraction media, among other applications. In particular, synthesis methods and processes to form molecules and salts having low average symmetry using mixed Grignard reagents are disclosed.Type: ApplicationFiled: January 17, 2014Publication date: July 17, 2014Applicant: ESIONIC ES, INC.Inventors: Benjamin L. Rupert, Leanne Beer
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Publication number: 20140199601Abstract: The present invention aims to provide an additive for a non-aqueous electrolyte solution with excellent storage stability capable of forming a stable SEI on the surface of an electrode to improve cell performance such as a cycle performance, a discharge/charge capacity, and internal resistance, when the additive is used for electrical storage devices such as non-aqueous electrolyte solution secondary cells and electric double layer capacitors. The present invention also aims to provide a non-aqueous electrolyte solution containing the additive for a non-aqueous electrolyte solution and to provide an electrical storage device using the non-aqueous electrolyte solution.Type: ApplicationFiled: July 6, 2012Publication date: July 17, 2014Applicant: SUMITOMO SEIKA CHEMICALS CO., LTD.Inventors: Tomohiro Onozuka, Shohei Fujimoto, Koji Fujita
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Publication number: 20140197351Abstract: Lithium-ion-conducting ceramic materials are disclosed having characteristics of high lithium-ion conductivity at low temperatures, good current efficiency, and stability in water and corrosive media under static and electrochemical conditions. Some general formulas for the lithium-ion-conducting materials include MI1+x+z-?MIIIxMIVayMIVb2-x-yMVzP3-zO12 and MI1+x+4z-?MIIIxMIVayMIVb2-x-y-zP3O12, wherein MI comprises Li, Na, or mixtures thereof; 0.05<x<0.5, 0.05<y<2, 0?z<3, and 0??<0.5; MIII comprises Al, Hf, Sc, Y, La, or mixtures thereof; MIVa comprises Zr, Ge, Sn, or mixtures thereof; MIVb comprises Ti; and MV comprises Si, Ge, Sn, or mixtures thereof. In some cases, the lithium-ion conducting materials are formed through a process in which the materials' powdered precursors are milled after being calcined and before being sintered. The milling process may include using milling media of multiple sizes.Type: ApplicationFiled: January 16, 2013Publication date: July 17, 2014Inventors: Shekar Balagopal, Roeger Marc Flinders, Spencer Jackman
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Patent number: 8778543Abstract: A sulfide-based lithium-ion-conducting solid electrolyte glass is formed from sulfide-based lithium-ion-conducting solid electrolyte, and ?-alumina.Type: GrantFiled: December 3, 2008Date of Patent: July 15, 2014Assignee: Seiko Epson CorporationInventors: Yuji Shinohara, Takeo Kawase, Shigeo Kondo
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Publication number: 20140193707Abstract: The invention relates to sulfur-containing compounds of the formula I, to their preparation, and to their use as additives in electrochemical or electrooptical devices, more particularly in electrolytes for lithium batteries, lithium ion batteries, double layer capacitors, lithium ion capacitors, solar cells, electrochromic displays, sensors and/or biosensors.Type: ApplicationFiled: August 22, 2012Publication date: July 10, 2014Applicant: BASF SEInventors: Michael Schmidt, Nikolai Ignatyev, Guenter Semrau, Walter Frank, Peter Barthen, Christoph Breitenstein
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Publication number: 20140190567Abstract: The present invention relates to the use of at least one imidazol derivative of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole as additive in dye-sensitized solar cells and to special electrolyte formulations and a dye-sensitized solar cell comprising at least one compound of formula I or 1-(3,3,4,4,4-pentafluorobutyl)-1H-imidazole, 1-(3,3,4,4,4-pentafluorobutyl)-1,2,3-triazole or 1-(2?-thioethyl)ethylimidazole.Type: ApplicationFiled: August 20, 2012Publication date: July 10, 2014Applicant: MERCK PATENT GMBHInventors: Kentaro Kawata, Tomohisa Goto, Hiroki Yoshizaki
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Method for producing electrolyte solution for lithium ion battery and lithium ion battery using same
Patent number: 8771882Abstract: There is provided a method for producing an electrolyte solution for lithium ion batteries, in which lithium hexafluorophosphate is used as an electrolyte, comprising the steps of (a) reacting phosphorus trichloride, chlorine and lithium chloride in a nonaqueous organic solvent; and (b) reacting a reaction product of the step (a) formed in the solvent, with hydrogen fluoride.Type: GrantFiled: November 7, 2006Date of Patent: July 8, 2014Assignee: Central Glass Company, LimitedInventors: Keiji Sato, Meguru Oe -
Patent number: 8771881Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.Type: GrantFiled: October 22, 2008Date of Patent: July 8, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinbum Kim, Jungkang Oh
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Patent number: 8773841Abstract: A supercapacitor capable of withstanding SMT manufacturing conditions includes at least one pair of electrodes having a mixture of carbon particles preferably in a CMC binder on facing surfaces of the at least one pair of electrodes; a porous separator, preferably polyimide, positioned between the facing surfaces of the at least one pair of electrodes; and an electrolyte for wetting the separator wherein the electrolyte includes an ionic liquid, such as EMITSFI, and optionally a solvent such as PC, GBL or glutaronitrile.Type: GrantFiled: September 9, 2009Date of Patent: July 8, 2014Assignee: Cap-XX LimitedInventors: Phillip Brett Aitchison, Alexander Bilyk, John Chi Hung Nguyen, Warren King
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Publication number: 20140187901Abstract: An electrode system include a flowable and cohesive surface contact element comprising a hydrophilic polymer swollen with an electrolyte fluid, the contact element having a Q? ratio of at least 5 as defined by the equation Q ? = W W W G wherein WG is the dry weight of the hydrophilic polymer and WW is weight of water in the sample after absorption of the electrolyte fluid comprising water and an electrolyte salt. The surface contact element can consist essentially of the hydrophilic polymer swollen by the electrolyte fluid. Another electrode system includes a contact element including a crosslinked hydrophilic polymer matrix. The contact element has a Q? ratio of at least 5 as defined by the equation Q ? = W W W G . The contact elements can also have a Q? ratio of at least 6, at least 7, at least 10 or even at least 11.Type: ApplicationFiled: March 4, 2014Publication date: July 3, 2014Applicant: University of Pittsburgh - Of the Commonwealth System of Higher EducationInventors: XINYAN CUI, NICOLAS ALEXANDER ALBA, MINGUI SUN
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Publication number: 20140186721Abstract: An electrolyte including an alkali metal salt; a polar aprotic solvent; and a triazinane trione; wherein the electrolyte is substantially non-aqueous.Type: ApplicationFiled: March 4, 2014Publication date: July 3, 2014Applicant: UCHICAGO ARGONNE, LLCInventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine
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Publication number: 20140182680Abstract: The present invention relates to electrolyte formulations comprising at least one compound comprising a dihydridodicyanoborate anion and their use in an eletrochemical and/or optoelectronic device such as a photovoltaic cell, a light emitting device, an electrochromic or photo-electrochromic device, an electrochemical sensor and/or biosensor, preferably their use in a dye or quantum dot sensitized solar cell.Type: ApplicationFiled: May 23, 2012Publication date: July 3, 2014Applicant: MERCK PATENT GMBHInventors: Kentaro KAWATA, Tomohisa GOTO, Nikolai (Mykola) IGNATYEV, Michael SCHULTE, Hiroki YOSHIZAKI, Eduard BERNHARDT, Vera BERNHARDT-PITCHOUGINA, Helge WILLNER
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Patent number: 8767376Abstract: An object of the present invention is to provide an electric double layer capacitor which has a high withstand voltage, and is resistant to degradation and excellent in long term reliability. Disclosed is an electrolytic solution for an electric double layer capacitor including a solvent (I) for dissolving an electrolyte salt and an electrolyte salt (II), wherein the solvent (I) for dissolving an electrolyte salt includes a sulfolane compound and a fluorine-containing chain ether. Also disclosed is an electric double layer capacitor using the electrolytic solution.Type: GrantFiled: November 26, 2010Date of Patent: July 1, 2014Assignee: Daikin Industries, Ltd.Inventors: Kenzou Takahashi, Meiten Koh, Mai Koyama, Emi Miyanaga
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Patent number: 8765294Abstract: A main object is to provide an asymmetric type BF3 complex which is useful as a solvent for a liquid electrolyte for electrochemical device, in which the liquid electrolyte has a wide potential window and is particularly excellent in oxidation resistance. To attain the object, an asymmetric type BF3 complex is represented by the following general formula (1): (in the general formula (1), each of R1 and R2 is an alkyl group having 1 to 6 carbon atoms and may be the same or different, and R1 and R2 may be branched or may form a ring).Type: GrantFiled: April 21, 2008Date of Patent: July 1, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventor: Masaki Matsui
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Patent number: 8765296Abstract: Disclosed is an ionic liquid having a low melting point, a low viscosity, and high electrical conductivity. Specifically disclosed is an anion represented by [CF3OCF2CF2BF3]? for use in the production of such ionic liquids.Type: GrantFiled: May 1, 2009Date of Patent: July 1, 2014Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Hajime Matsumoto, Naohiro Terasawa, Seiji Tsuzuki
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Publication number: 20140175326Abstract: This invention relates to an electrolytic composition comprising at least one organic solvent in which one or several non-lithiated ionic salts are dissolved, characterised in that an ionic liquid is added to this electrolytic composition. Application to energy storage devices.Type: ApplicationFiled: June 19, 2012Publication date: June 26, 2014Applicants: UNIVERSITE FRANCOIS RABELAIS, Commissariat a I'energie atomique et aux ene altInventors: Hervé Galiano, Bénédicte Montigny, Thamra Abdallah, Daniel Lemordant
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Publication number: 20140175325Abstract: An electrolyte composition for a dye-sensitized solar cell (DSSC) is provided, which includes a redox couple solution and inorganic nanoparticles. The surface of the inorganic nanoparticle may have a substituted or unsubstituted silane group, an ether group, a substituted amino group, a carbonyl group, an ester group, an amide group or a combination thereof.Type: ApplicationFiled: May 13, 2013Publication date: June 26, 2014Inventors: Wei-Ting Yeh, An-I Tsai
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Patent number: 8758639Abstract: An electrolyte composition with a low gelling temperature is disclosed, which includes: an electrolyte gelator which is an acrylonitrile-based copolymer; and a liquid electrolyte containing a nitrile-based solvent. A method for manufacturing an electronic device using the aforesaid electrolyte composition is also disclosed.Type: GrantFiled: March 30, 2011Date of Patent: June 24, 2014Assignee: National Cheng Kung UniversityInventors: Yuh-Lang Lee, Ching-Lun Chen