Sulfur, Nitrogen, Or Phosphorus Containing Polymer Patents (Class 429/314)
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Patent number: 7858668Abstract: An electrolyte membrane includes a cross-linked reaction product of a benzoxazine monomer and a cross-linkable compound. The electrolyte membrane is impregnated with 300 to 600 parts by weight of phosphoric acid based on 100 parts by weight of the electrolyte membrane, and has a yield strain 0.5% or less, and a yield stress 0.3 Mpa or less. The cross-linked material has a strong acid trapping ability with respect to the benzoxazine compound and excellent mechanical properties due to a cross-linkage. Also, the solubility of the cross-linked material in polyphosphoric acid is low, thereby showing excellent chemical stability. Accordingly, when the cross-linked material is used, an electrolyte membrane having an excellent liquid supplementing ability and excellent mechanical and chemical stability at a high temperature can be obtained.Type: GrantFiled: September 5, 2006Date of Patent: December 28, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Myung-jin Lee, Seong-woo Choi, Hee-young Sun, Woo-sung Jeon
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Patent number: 7851090Abstract: An organic electrolytic solution is provided which 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 phosphine oxide compound The phosphine oxide compound imparts flame resistance and good charge/discharge properties, thereby producing a lithium battery that is highly stable and reliable and that has good charge/discharge efficiency.Type: GrantFiled: August 22, 2006Date of Patent: December 14, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jin-hwan Park, Seok-gwang Doo, Dong-min Im, Gue-sung Kim, Nina K. Gusarova, Boris A. Trofimov
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Patent number: 7850873Abstract: A polymer electrolyte that may be used in a fuel cell includes sulfonated polyether ketone ketone and a cross-linking agent.Type: GrantFiled: December 3, 2009Date of Patent: December 14, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Myung-jin Lee, Myung-dong Cho, Hee-young Sun
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Patent number: 7846587Abstract: There is provided a high molecular weight ion conductor which has a high ionic conductivity even around room temperature, is low in a viscosity, is nonflammable, is excellent in oxidation resistance, and can satisfy characteristics required for a solid electrolyte of lithium secondary batteries, a solid electrolyte of capacitors and a solid electrolyte of solar cells. The high molecular weight ion conductor comprises an ion conducting compound (I) and an electrolytic salt (II), and the ion conducting compound (I) is a non-crystalline fluorine-containing polyether compound having a fluorine-containing group in its side chain and a unit dissolving an electrolyte, or a crosslinked product thereof.Type: GrantFiled: October 6, 2005Date of Patent: December 7, 2010Assignee: Daikin Industries, Ltd.Inventors: Meiten Koh, Akiyoshi Yamauchi
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Patent number: 7842431Abstract: A mixture, cation conductor and electrochemical device using same are provided. The mixture and a cation conductor, in which cations can be moved without humidification even in a range of temperatures less than or equal to the boiling point of water, or an electrochemical device such as a fuel cell using them. A fuel electrode and an oxygen electrode, which are oppositely arranged with an electrolyte film in between, is provided. The electrolyte film contains a first compound formed of an imidazole derivative containing N having an unshared electron pair and a second compound of at least one selected from the group consisting of compounds having structures shown below.Type: GrantFiled: February 2, 2005Date of Patent: November 30, 2010Assignee: Sony CorporationInventors: Kazuaki Fukushima, Takuro Hirakimoto, Shuichi Takizawa, Atsushi Nishimoto, Kazuhiro Noda
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Patent number: 7833643Abstract: A neutral protic salt electrolyte and a protic-salt imbibed polymer electrolyte membrane exhibiting high ionic conductivity and thermal stability at temperatures greater than 100° C. without requiring additional humidification systems or hydrating water is disclosed. The protic salt is the neutral product of acids and bases for which the proton transfer energy lies in the range from 0.5 to 1.5 eV. A polymer electrolyte membrane having the general formula: wherein A is a repeating unit in the main chain, B is a crosslinker chain, C is an end group, YZ is a neutralized couple at chain end, IL is an ionic liquid, and NP is a nanoparticle which absorbs the protic liquid yielding membranes that combine high mechanical strength with high conductivity. The present polymer electrolyte membrane is useful in high temperature fuel cells for automotive, industrial, and mobile communication applications.Type: GrantFiled: September 26, 2006Date of Patent: November 16, 2010Assignee: Arizona Board of Regents for and on behalf of Arizona State UniversityInventors: Charles Austen Angell, Xiao-Guang Sun, Jean-Philippe Belieres, Dominic Francis Gervasio
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Patent number: 7829218Abstract: Aspects of the present invention provide a proton conductive electrolyte suitable for a fuel cell material and a fuel cell including the proton conductive electrolyte. More particularly, aspects of the present invention provide a proton conductive electrolyte that has good proton conductivity and can be used to form a membrane having good flexibility. As a result, the proton conductive electrolyte can be used in a fuel cell, the electrolyte membrane of a fuel cell or the electrodes thereof, and can provide a solid polymer fuel cell having high current density, high power and long life-time in a dry environment (relative humidity of 50% or less) at an operating temperature of 100 to 200° C.Type: GrantFiled: January 9, 2007Date of Patent: November 9, 2010Assignee: Samsung SDI Co., LtdInventors: Hiroko Endo, Hiroyuki Nishide, Atsuo Sonai, Takahiro Tago
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Patent number: 7824808Abstract: The present invention relates to Lithium Metal batteries. In particular, it is related to lithium metal batteries containing a polyimide-based electrolyte. The present invention concerns a new concept of polyimide-based electrolytic component having an electrolyte comprising of at least one solvent and at least one alkali metal salt, with specific amounts of solvents, to optimize the properties of conductivity of the polyimide-based electrolyte and the mechanical properties of the polyimide-based electrolyte separator towards metallic lithium anode to prevent dendrites growths.Type: GrantFiled: April 23, 2008Date of Patent: November 2, 2010Assignee: Solicore, Inc.Inventors: Allain Vallee, Dany Brouillette, James K. Pugh, Wade W. Guindy
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Patent number: 7811693Abstract: A proton exchange membrane comprises a hybrid inorganic-organic polymer that includes implanted metal cations. Acid groups are bound to the hybrid inorganic-organic polymer through an interaction with the implanted metal cations. An example process for manufacturing a proton exchange membrane includes sol-gel polymerization of silane precursors in a medium containing the metal cations, followed by exposure of the metal-implanted hybrid inorganic-organic polymer to an acid compound.Type: GrantFiled: May 12, 2005Date of Patent: October 12, 2010Assignees: Toyota Motor Engineering & Manfacturing North America, Inc., Georgia Tech Research CorporationInventors: Wen Li, Siwen Li, Meilin Liu
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Patent number: 7799468Abstract: An electrolyte material for polymer electrolyte fuel cells, which is made of a polymer containing repeating units based on a fluoromonomer having a radical polymerization reactivity, wherein the repeating units contain a 5-membered ring (which may contain 1 or 2 oxygen atoms), of which at least one carbon atom is contained in the main chain of the polymer, and an ionic group such as a sulfonic acid group which is bonded to the 5-membered ring directly or via a perfluoroalkylene group having a linear or branched structure; and the polymer has a softening temperature of at least 120° C.Type: GrantFiled: December 20, 2005Date of Patent: September 21, 2010Assignee: Asahi Glass Company, LimitedInventors: Atsushi Watakabe, Satoru Hommura, Seigo Kotera, Susumu Saito, Koichi Murata, Masanori Sawaguchi, Taiki Hoshino, Junichi Tayanagi, Eiji Endoh
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Patent number: 7790323Abstract: A polymer electrolyte for an electrochemical half-cell, such as a reference half-cell, contains a polymer which can be produced by polymerization of N-acryloyl-amino-ethoxy-ethanol or by co-polymerization of N-acryloyl-amino-ethoxy-ethanol with at least one further monomer component.Type: GrantFiled: July 28, 2006Date of Patent: September 7, 2010Assignee: Mettler-Toledo AGInventors: Philippe Ehrismann, Wolfgang Haller
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Publication number: 20100209779Abstract: High electrical energy density storage devices are disclosed. The devices include electrochemical capacitors, electrolytic capacitors, hybrid electrochemical-electrolytic capacitors, secondary batteries and batcaps. Advantageously, the energy storage devices may employ core-shell protonated perovskite submicron or nano particles in composite films that have one or more shell coatings on a protonated perovskite core particle, proton bearing and proton conductive. The shells may be formed of proton barrier materials as well as of electrochemically active materials in various configurations.Type: ApplicationFiled: January 29, 2010Publication date: August 19, 2010Applicant: Recapping, Inc.Inventor: Mark A. Wendman
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Publication number: 20100159335Abstract: Crosslinked polyimide-poly(alkylene oxide) copolymers capable of holding large volumes of liquid while maintaining good dimensional stability. Copolymers are derived at ambient temperatures from amine endcapped amic-acid oligomers subsequently imidized in solution at increased temperatures, followed by reaction with trifunctional compounds in the presence of various additives. Films of these copolymers hold over four times their weight at room temperature of liquids such as ionic liquids (RTIL) and/or carbonate solvents. These rod-coil polyimide copolymers are used to prepare polymeric electrolytes by adding to the copolymers various amounts of compounds such as ionic liquids (RTIL), lithium trifluoromethane-sulfonimide (LiTFSi) or other lithium salts, and alumina.Type: ApplicationFiled: December 22, 2008Publication date: June 24, 2010Inventors: Maryann B. Meador, Dean M. Tigelaar
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Patent number: 7736547Abstract: A method of producing a proton conducting material, comprising adding a pyrophosphate salt to a solvent to produce a dissolved pyrophosphate salt; adding an inorganic acid salt to a solvent to produce a dissolved inorganic acid salt; adding the dissolved inorganic acid salt to the dissolved pyrophosphate salt to produce a mixture; substantially evaporating the solvent from the mixture to produce a precipitate; and calcining the precipitate at a temperature of from about 400° C. to about 1200° C.Type: GrantFiled: March 11, 2008Date of Patent: June 15, 2010Assignee: Los Alamos National Security, LLCInventors: Fernando Henry Garzon, Melinda Lou Einsla, Rangachary Mukundan
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Patent number: 7732502Abstract: A fullerene-based proton conductor including a proton conductive functional group connected to the fullerene by an at least partially fluorinated spacer molecule. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule. Further, an electrochemical device employing the polymer as a proton exchange membrane, whereby the device is able to achieve a self-humidifying characteristic.Type: GrantFiled: October 19, 2006Date of Patent: June 8, 2010Assignee: Sony CorporationInventors: Berthold Nuber, Bjoern Pietzak
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Patent number: 7732501Abstract: A fullerene-based proton conductor including a proton conductive functional group connected to the fullerene by an at least partially fluorinated spacer molecule. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule. Further, an electrochemical device employing the polymer as a proton exchange membrane, whereby the device is able to achieve a self-humidifying characteristic.Type: GrantFiled: October 19, 2006Date of Patent: June 8, 2010Assignee: Sony CorporationInventors: Berthold Nuber, Bjoern Pietzak
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Patent number: 7732099Abstract: A totally solid polymer electrolyte composition with high ionic conductivity and enhanced mechanical properties is provided. This electrolyte composition is produced by polymerizing a monomer composition comprising a molten quaternary ammonium salt having a polymerizable functional group introduced therein and a charge transfer ion source in the presence of a polymeric reinforcing material. The polymeric reinforcing material can be formed into a composite of polymer blend morphology by dissolving the monomer composition and the reinforcing material in an appropriate organic solvent and polymerizing the solution. Alternatively, the composite can be obtained by impregnating a porous sheet or film as the reinforcing material with the monomer composition and effecting polymerization.Type: GrantFiled: March 15, 2004Date of Patent: June 8, 2010Assignee: Trekion Co., Ltd.Inventors: Naoya Ogata, Hiroshi Kagawa, Makiko Sada
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Patent number: 7727651Abstract: The present invention relates to a proton-conducting polymer membrane comprising polymers containing phosphonic acid groups which is obtainable by a process comprising the steps A) mixing of vinyl-containing phosphonic acid with one or more aromatic tetraamino compounds with one or more aromatic carboxylic acids, esters thereof, acid halides thereof or anhydrides thereof which contain at least two acid groups per carboxylic acid monomer, and/or ?mixing of vinyl-containing phosphonic acid with one or more aromatic and/or heteroaromatic diamino carboxylic acids, esters thereof, acid halides thereof or anhydrides thereof, B) heating of the mixture obtainable according to step A) under inert gas at temperatures of up to 350° C. to form polyazole polymers, C) application of a layer using the mixture from step A) and/or B) to a support, D) polymerization of the vinyl-containing phosphonic acid present in the sheet-like structure obtainable according to step C).Type: GrantFiled: July 31, 2003Date of Patent: June 1, 2010Assignee: BASF Fuel Cell GmbHInventors: Joachim Kiefer, Oemer Uensal, Gordon Calundann
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Patent number: 7713449Abstract: A polymer electrolytic material has excellent proton conductivity and excellent fuel shutting property, and accordingly provide a polymer electrolytic fuel cell with a high efficiency. This polymer electrolytic material has an unfreezable water ratio Rw1 defined by the following expression (S1) in a range of 20 to 100% by weight in hydrated state: Rw1=[Wnf/Wfc+Wnf)]×100??(S1) in which Wnf represents the unfreezable water content per 1 g of the polymer electrolytic material in dry state and Wfc represents the low freezing point water content per 1 g of the polymer electrolytic material in dry state.Type: GrantFiled: March 5, 2004Date of Patent: May 11, 2010Assignee: Toray Industries, Inc.Inventors: Shinya Adachi, Daisuke Izuhara, Masataka Nakamura, Nobuaki Ito
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Patent number: 7709139Abstract: A battery device includes a cathode current collector and an anode current collector. A fibrous electrode forms a structure defining a plurality of pores. A first portion of the fibrous electrode is in contact with a current collector. An electrolytic polymer is electrodeposited on the fibrous electrode to provide substantial uniform coverage of fibers forming the fibrous electrode. A plurality of electrode particles are disposed within the plurality of pores and separated from the fibrous electrode by the electrolytic polymer.Type: GrantFiled: January 22, 2007Date of Patent: May 4, 2010Assignee: Physical Sciences, Inc.Inventors: Kevin White, Quinn Horn, Edward Salley, John Lennhoff
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Patent number: 7704642Abstract: The disclosure discloses a polymer represented by the general formula, wherein Rp is a residue of a polymer of a compound having a polymerizable unsaturated bond, Q is an organic residue of n+1 valences and connected directly or through another group to Rp by means of a single bond, Mk+ is a cation of k valence, Z is an organic function group capable of forming an ionic bond with cation Mk+ or an organic function group having a coordination capability with Mk+, and m, n and k are integers of one or more. The disclosure also discloses an intermediate of the polymer mentioned above.Type: GrantFiled: November 1, 2007Date of Patent: April 27, 2010Assignee: Hitachi, Ltd.Inventors: Shin Nishimura, Akira Satou, Takefumi Okumura, Makoto Morishima, Hitoshi Yamamoto, Norikazu Ueyama
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Patent number: 7700241Abstract: Disclosed is a polymer electrolyte for use in an electrochemical device. Said polymer electrolyte comprises at least one polymer having ion-exchangeable functional groups. The polymer also comprises ionic liquid functional groups. The ion-exchangeable functional groups comprise a polymer-bound anionic group, such as a sulfonate, a carboxylate, and a phosphonate or any anionic surfactant group. Also disclosed is an electrical device that comprises said polymer electrolyte material. Such electrical device preferably consists of a fuel cell, an electrical battery, a super capacitor, an electrochromic window or a solar cell.Type: GrantFiled: May 25, 2005Date of Patent: April 20, 2010Assignee: Koninklijke Philips Electronics N.V.Inventors: Adam Samuel Best, Sebastien Mathieu Jean Viale, Stephen James Picken
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Patent number: 7695862Abstract: The invention is concerned with an additive for a non-aqueous electrolyte of a secondary battery having a high ability dissolving a support salt and a low viscosity and comprising a phosphazene derivative represented by the following formula (I): (wherein R1 is independently a halogen element or a monovalent substituent; and X is an organic group containing at least one element selected from the group consisting of carbon, silicon, nitrogen, phosphorus, oxygen and sulfur) as well as a non-aqueous electrolyte secondary battery comprising an electrolyte containing this additive and having excellent high-rate characteristics.Type: GrantFiled: December 24, 2003Date of Patent: April 13, 2010Assignee: Bridgestone CorporationInventors: Masashi Otsuki, Yasuro Horikawa
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Patent number: 7691536Abstract: An air lithium battery (10) is provided having two equal halves (11) that are joined together along a centerline (12). Each half includes a substrate (13), a carbon based cathode (14), a solid electrolyte (15), an anode (16), an anode current collector (17), and end seals (19). The solid electrolyte includes alternating layers of ion conductive glass (21) and ion conductive polymer (22) materials.Type: GrantFiled: February 17, 2005Date of Patent: April 6, 2010Assignee: Excellatron Solid State, LLCInventor: Lonnie G. Johnson
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Patent number: 7678504Abstract: A lithium secondary battery of the present invention comprises a positive electrode; a negative electrode; a separator interposed between the positive and negative electrodes; and an electrolyte on the separator, wherein the electrolyte includes a non-aqueous organic solvent, a lithium salt, and a linear polymer having P?O bonds. The electrolyte improves the swelling characteristics of lithium secondary batteries. A lithium secondary battery with the electrolyte and a method for preparing the electrolyte and battery is described.Type: GrantFiled: July 14, 2003Date of Patent: March 16, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jin-Young Lee, Kyoung-Hee Lee
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Patent number: 7674560Abstract: The present invention is concerned with cross-linked sulfonated polymers, eventually perfluorinated, and their preparation process. When molded in the form of membranes, the polymers are useful in electrochemical cells, in a chlorine-sodium electrolysis process, as separator in an electrochemical preparation or organic and inorganic compounds, as separators between an aqueous phase and an organic phase, or as catalyst for Diels-Alder additions, Friedel-Craft reactions, aldol concentrations, cationic polymerisation, esterification, and acetal formation.Type: GrantFiled: April 25, 2006Date of Patent: March 9, 2010Assignee: Hydro-QuebecInventors: Christophe Michot, Michel Armand
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Patent number: 7674544Abstract: A fullerene-based proton conductor including a proton conductive functional group connected to the fullerene by an at least partially fluorinated spacer molecule. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule. Further, an electrochemical device employing the polymer as a proton exchange membrane, whereby the device is able to achieve a self-humidifying characteristic.Type: GrantFiled: October 19, 2006Date of Patent: March 9, 2010Assignee: Sony CorporationInventors: Berthold Nuber, Bjoern Pietzak
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Proton conductor, single ion conductor, manufacturing methods thereof, and electrochemical capacitor
Patent number: 7670508Abstract: A proton conductor or a single ion conductor having high conductivity and a broad operation temperature range, manufacturing methods thereof and an electrochemical capacitor using it are provided. A compound having a structural part of Chemical formula 1 and a compound having a structure of Chemical formula 2 are included. X represents a protoic dissociation group, R1 represents a component including carbon, R2 and R3 represent a component including carbon or hydrogen, and n is in the range of n?1. By action of the ?NCOH group of the compound having the structure of Chemical formula 2, protons can be dissociated from the compound having the structural part of Chemical formula 1 and migrated. Therefore, water retention becomes unnecessary, and high proton conductivity can be obtained in a broad temperature range.Type: GrantFiled: November 17, 2003Date of Patent: March 2, 2010Assignee: Sony CorporationInventors: Tomitaro Hara, Ryosuke Takagi -
Patent number: 7662498Abstract: An object of the present invention is to provide a polymer electrolyte composition ensuring high durability even under high-temperature low-humidification conditions (for example, an operation temperature of 100° C. with 50° C. humidification (corresponding to a humidity of 12 RH %)), and a proton exchange membrane comprising the polymer electrolyte composition. The present invention provides a polymer electrolyte composition comprising (A) a polymer compound having an ion exchange group, (B) a polyphenylene sulfide resin, and at least one resin selected from (C) a polyphenylene ether resin and (D) a polysulfone resin, and a proton exchange membrane comprising the above polymer electrolyte composition.Type: GrantFiled: April 22, 2005Date of Patent: February 16, 2010Assignee: Asahi Kasei Chemicals CorporationInventors: Hiroshi Murata, Kimihiro Kubo
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Publication number: 20100035158Abstract: A polymer electrolyte which comprises an ionic liquid (A) and a block copolymer (B) as essential ingredients, which block copolymer (B) comprises one or more of polymer block(s) (P) being compatible with (A) and one or more of polymer block(s) (Q) being incompatible with (A). (A) and (P) mutually dissolve each other to form one phase (X), and (Q) forms a phase (Y) being incompatible with phase (X), and phase (X) and phase (Y) are mutually micro phase separated. The polymer electrolyte of the present invention shows practical ion conductivity, is excellent in retention of ionic liquid, and moreover, is also excellent in heat resistance and mechanical strength.Type: ApplicationFiled: October 2, 2007Publication date: February 11, 2010Applicant: KURARAY CO., LTDInventors: Toshinori Kato, Hiroyuki Ohgi, Masayoshi Watanabe
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Patent number: 7659036Abstract: A lithium rechargeable battery includes a separator that shows excellent safety characteristics such as short circuit resistance and heat resistance. The lithium rechargeable battery includes a cathode, an anode, a separator that separates the cathode and the anode from each other, and a non-aqueous electrolyte, wherein the separator includes a porous membrane formed of a ceramic material and a binder, and wherein the binder includes at least one crystalline resin having a crystal melting temperature of 250° C. or higher or at least one non-crystalline resin having an initial decomposition temperature of 250° C. or higher.Type: GrantFiled: July 20, 2006Date of Patent: February 9, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Jinhee Kim, Wonchull Han, Jaevun Min
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Patent number: 7651803Abstract: Disclosed herein are an ionic conductor including a proton conductor, a process for production thereof, and an electrochemical device (such as fuel cell) with said ionic conductor, said ionic conductor being superior in ionic conductivity, water resistance, and film forming properties. The ionic conductor is formed from a polymer in which carbon clusters having ion dissociating functional groups are bonded to each other through connecting groups. The polymer is less water-soluble and more chemically stable than a derivative composed solely of carbon clusters; therefore, it permits many ion dissociating functional group to be introduced thereinto. Moreover, if ion dissociating functional groups are introduced into also the connecting group, it is possible to prevent the concentration of ion dissociating functional groups from decreasing as the result of polymerization. The polymer can be easily synthesized by simple condensation, substitution, and hydrolysis.Type: GrantFiled: November 20, 2006Date of Patent: January 26, 2010Assignee: Sony CorporationInventors: Koichiro Hinokuma, Bjoern Pietzak, Constance Gertrud Rost, Masafumi Ata, Yongming Li, Kazuaki Fukushima
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Publication number: 20100003604Abstract: The present invention relates to a phosphate-based acrylate crosslinking agent for polymer electrolyte and a polymer electrolyte composition comprising the phosphate-based acrylate crosslinking agent, and in particular to a phosphate-based acrylate crosslinking agent where a phosphate-based compound is introduced with a polyalkylene oxide group and an acrylate group and a polymer electrolyte composition comprising the phosphate-based acrylate crosslinking agent. The polymer electrolyte composition can be applied to electrolyte thin film and polymer electrolyte of small and large capacity lithium-polymer secondary battery due to its superior ionic conductivity and electrochemical and thermal stability, where the physical properties of electrolyte composition may be controlled by means of the length of polyalkylene oxide of the crosslinking agent.Type: ApplicationFiled: July 26, 2007Publication date: January 7, 2010Inventors: Yongku Kang, Changjin Lee, Jun Kyoung Lee, Joung In Lee
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Patent number: 7632590Abstract: A method for manufacturing an electrolyte includes coupling a substrate to a charged electrode and electrodepositing a polymeric electrolyte on the substrate.Type: GrantFiled: July 15, 2003Date of Patent: December 15, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: David Punsalan, Peter Mardilovich, Gregory S Herman
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Patent number: 7625652Abstract: The present invention relates to a proton-conducting multilayer electrolyte membrane with a barrier layer, a process for producing it and a fuel cell containing such a membrane.Type: GrantFiled: April 22, 2003Date of Patent: December 1, 2009Assignee: BASF Fuel Cell GmbHInventors: Oemer Uensal, Joachim Kiefer
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Publication number: 20090286163Abstract: The present invention provides for the preparation of ionic liquid-lithium salt-low molecular weight liquid polymer mixtures. The mixture is useful as an electrolytic solution. Thus, the mixture is suitable as an electrolyte in batteries and supercapacitors as well as an active material for solid state light-emitting devices or polymer light-emitting displays or an electro deposition of alkali metals such as lithium, sodium, or potassium in the field of research or industry. The present invention further provides for a method making the mixture. Additionally, the present invention provides for a lithium battery comprising the mixture and a method of making the lithium battery.Type: ApplicationFiled: November 19, 2008Publication date: November 19, 2009Applicant: The Regents of the University of CaliforniaInventors: Joon Ho Shin, Elton J. Cairns
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Patent number: 7601448Abstract: A polymer electrolyte membrane having outstanding water resistance and high thermal resistance, moreover having practical strength required for use as a polymer electrolyte membrane of a solid polymer electrolyte type fuel cell at low price, and a method for producing the polymer electrolyte membrane are provided. A polymer electrolyte comprising a block copolymer comprising one or more of blocks in which sulfonic acid groups are introduced and one or more blocks in which sulfonic acid groups are not substantially introduced wherein at least one block in the block copolymer is a block having aromatic rings in polymer chain, and a porous membrane, and a fuel cell using the membrane are provided.Type: GrantFiled: June 28, 2002Date of Patent: October 13, 2009Assignee: Sumitomo Chemical Company, LimitedInventors: Yasuaki Hidaka, Katsuhiko Iwasaki
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Patent number: 7597981Abstract: The present invention relates to a composite electrolyte membrane for fuel cells that has high proton conductivity and low fuel permeability even under low humidity conditions and at elevated temperatures. The membrane, comprising a cation exchange resin and acid-treated dendrimers, has great utility in large and medium fuel cells for applications in household appliances, electric vehicles, etc.Type: GrantFiled: November 30, 2005Date of Patent: October 6, 2009Assignee: Hyundai Motor CompanyInventors: Jong Hyun Lee, Hwan Soo Shin, Hee Woo Rhee, Young Taek Kim, Min Kyu Song, Min Sung Kim
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Patent number: 7579116Abstract: A fuel cell having a polymer electrolyte membrane containing fluorine atoms distributed along the polymer chains, and metal conductors and/or catalysts, is protected from fluoride ion degradation of the metal components by a fluoride ion sequestering agent fixed in the cell or flowing through the cell. In a preferred embodiment, the fluoride ion scavenger comprises a suitable number of azacrown moieties attached to polymer constituents in the electrolyte membrane or in electrodes.Type: GrantFiled: April 1, 2005Date of Patent: August 25, 2009Assignee: GM Global Technology Operations, Inc.Inventors: Andrew M. Mance, Belabbes Merzougui, Ion C. Halalay
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Patent number: 7575831Abstract: A method for preparing Li1+xNi1?yCoyO2 cathode materials is disclosed, wherein ?0.2?x?0.2 and 0.05?y?0.5. The method includes the following steps: (A) adding a first solution into a second solution to form a mixed solution, wherein the first solution is a saturated lithium hydroxide solution, the second solution contains nickel salt and cobalt salt, the mole ratio of the lithium ion in the first solution to nickel ion and cobalt ion in the second solution ranges from 1.5:1 to 5:1, and the molar ratio of nickel ion to cobalt ion in the second solution is 1?y:y; (B) stirring the mixed solution; (C) filtering the mixed solution and obtaining a co-precipitated precursor, wherein the molar ratio of lithium ion:nickel ion:cobalt ion is 1+x:1?y:y; and (D) heating the co-precipitated precursor at a temperature higher than 600° C.Type: GrantFiled: November 3, 2005Date of Patent: August 18, 2009Assignee: Tatung CompanyInventors: She-Huang Wu, Wen-Jen Liu, ChihWei Yang
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Patent number: 7560185Abstract: A solid polymer electrolyte is made up of a polymer compound having a hydrocarbon aromatic group in the backbone thereof and including a side chain expressed by FORMULA 1: wherein “n” is 1, 2, 3, 4, 5, or 6. The solid polymer electrolyte may be incorporated into a membrane and may be used in a solution for covering an electrode catalyst.Type: GrantFiled: July 8, 2005Date of Patent: July 14, 2009Assignee: Hitachi, LtdInventors: Toru Koyama, Toshiyuki Kobayashi, Kenji Yamaga, Tomoichi Kamo, Kazutoshi Higashiyama
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Patent number: 7560184Abstract: The invention provides a proton-conducting electrolyte that has excellent proton-conducting properties, heat resistance, and chemical stability without containing any fluorine. The proton-conducting electrolyte contains polyamide sulfamidic acid in which a polyamide backbone has side chains of sulfamidic acid groups. The polyamide sulfamidic acid may be represented by the formula: where Ar1 and Ar2 are each an aromatic ring or a group containing an aromatic ring and n is the average degree of polymerization and is an integer between 100-300,000.Type: GrantFiled: March 3, 2005Date of Patent: July 14, 2009Assignee: Samsung SDI Co., Ltd.Inventors: Atsuo Sonai, Takahiro Tago, Hiroyuki Nishide
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Patent number: 7550216Abstract: The present invention relates to composite solid polymer electrolyte membranes (SPEMs) which include a porous polymer substrate interpenetrated with a water soluble ion-conducting material. SPEMs of the present invention are useful in electrochemical applications, including fuel cells and electrodialysis.Type: GrantFiled: May 22, 2004Date of Patent: June 23, 2009Assignee: Foster-Miller, Inc.Inventors: David Ofer, Bindu R. Nair, Emily J. Stoler, Robert F. Kovar
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Patent number: 7544445Abstract: A polymer electrolyte membrane comprising a microporous polymer membrane having pores penetrating through the opposite sides thereof. The microporous polymer membrane holds a mixture of a polymer and a molten salt at a weight ratio of 1/99 to 99/1 and/or a molten salt. The polymer electrolyte membrane is inexpensive, durable, excellent in mechanical strength, excellent in structural retention in high temperatures, and capable of stably holding a molten salt in its porous polymer membrane structure, shows high heat resistance, and secures high ionic conductivity in the absence of water or a solvent and is therefore useful in fuel cells, secondary batteries, electric double layer capacitors, electrolytic capacitors, and the like.Type: GrantFiled: June 18, 2003Date of Patent: June 9, 2009Assignee: Ube Industries, Ltd.Inventors: Masayuki Kinouchi, Tetsuji Hirano, Nobuharu Hisano
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Patent number: 7541107Abstract: An object of the present invention is to provide a highly durable solid polymer electrolyte that has a deterioration resistance equal to or higher than that of the fluorine-containing solid polymer electrolytes or a deterioration resistance sufficient for practical purposes, and can be produced at a low cost. According to the present invention, there is provided a solid polymer electrolyte comprising a polyether ether sulfone that is used as an electrolyte and has sulfoalkyl groups bonded to its aromatic rings and represented by the general formula —(CH2)n—SO3H.Type: GrantFiled: August 19, 2004Date of Patent: June 2, 2009Assignee: Hitachi, Ltd.Inventors: Tohru Koyama, Toshiyuki Kobayashi, Kenji Yamaga, Tomoichi Kamo, Kazutoshi Higashiyama
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Publication number: 20090111027Abstract: An ionically conductive polymer has the chemical structure 1 as shown herein. Examples of the polymer include 4,4?-(4-(1H-benzo[d]imidazol-2-yl)butane-2,2-diyl)diphenol, sulfonated poly(aryl ether sulfone) containing benzimidazole backbone, sulfonated poly(aryl ether sulfone) containing carboxylic acid backbone, and sulfonated poly(aryl ether sulfone) containing benzimidazole backbone from carboxylic acid containing sulfonated poly(aryl ether sulfone). The polymer has intrinsic ion conducting properties so that it is effectively conductive even under low water conditions. In one embodiment, the polymer has an ionic conductivity of at least 1×10?5 S/cm at a temperature of 120° C. when the polymer is substantially anhydrous.Type: ApplicationFiled: October 26, 2007Publication date: April 30, 2009Applicant: Battelle Memorial InstituteInventors: Ramanathan S. Lalgudi, Jeffrey Boyce, Jay Sayre, Bhima R. Vijayendran
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Publication number: 20090087751Abstract: A solid electrolyte material of conducting a lithium ion comprises a sulfide-based lithium-ion conductor and ?-alumina. Such a solid electrolyte material exhibits superior lithium-ion conductivity. Further, a battery device provided with such a solid electrolyte material is also provided. Furthermore, an all-solid lithium-ion secondary battery provided with such a battery device is also provided.Type: ApplicationFiled: September 4, 2008Publication date: April 2, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Shigeo Kondo, Yasumasa Takeuchi, Yuji Shinohara, Takeo Kawase
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Publication number: 20090081553Abstract: An electrochemical device manufactured using an electrode layer in which severe increase of electrode resistance is prevented and/or a solid electrolyte layer in which severe decrease of ion conductivity of a solid electrolyte is prevented is provided. The electrochemical device includes a pair of electrode layers, and a solid electrolyte layer provided between the pair of electrode layers, wherein at least one layer of the electrode layers and the solid electrolyte layer is composed of first particles each providing a function of the at least one layer, second particles and a binder which is composed of an organic polymer and binds the first and second particles, and wherein the at least one layer is formed from a mixture material containing the first particles and binder particles, each of the binder particles including the second particle and the binder carried on at least a part of a surface thereof.Type: ApplicationFiled: September 24, 2008Publication date: March 26, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Shigeo Kondo, Yasumasa Takeuchi, Yuji Shinohara, Takeo Kawase
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Patent number: 7488788Abstract: To provide an electrolyte polymer for polymer electrolyte fuel cells, made of a perfluorinated polymer having sulfonic groups, characterized in that in a test of immersing 0.1 g of the polymer in 50 g of a fenton reagent solution containing 3% of an aqueous hydrogen peroxide solution and 200 ppm of bivalent iron ions at 40° C. for 16 hours, the amount of eluted fluorine ions detected in the solution is not more than 0.002% of the total amount of fluorine in the polymer immersed. The electrolyte polymer of the present invention has very few unstable terminal groups and has an excellent durability, and therefore, is suitable as a polymer constituting an electrolyte membrane for polymer electrolyte fuel cells and a polymer contained in a catalyst layer.Type: GrantFiled: November 14, 2005Date of Patent: February 10, 2009Assignee: Asahi Glass Company, LimitedInventors: Nobuyuki Kasahara, Atsushi Watakabe, Tetsuji Shimohira, Hisao Kawazoe, Ichiro Terada
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Patent number: 7488559Abstract: The solid electrolyte of the present invention is composed of an organic/inorganic composite material having pores with a mean pore diameter of 1 to 30 nm and having a skeleton comprising a metal atom, an oxygen atom bonded to the metal atom, and an organic group having at least one carbon atom bonded to the metal atom or the oxygen atom, and a functional group having an ion exchange function and bonded to the organic group inside the pores. As a result, even if the relative pressure of the water vapor in the atmosphere is less than 1.0, it is still possible to achieve a solid electrolyte with a sufficiently high ion conductivity at a lower temperature than with a conventional solid electrolyte such as stabilized zirconia.Type: GrantFiled: October 31, 2001Date of Patent: February 10, 2009Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Shinji Inagaki, Shiyou Guan, Yoshiaki Fukushima