Nitrogen And Phosphorus In The Polymer Patents (Class 429/315)
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Patent number: 12157787Abstract: A resin composition may include at least one urethane (meth)acrylate oligomer, at least one (meth)acrylate monomer, and at least one photoinitiator. The urethane (meth)acrylate oligomer may include a first urethane (meth)acrylate oligomer derived from a phosphate ester-containing polyol represented by Formula 1, and the first urethane (meth)acrylate oligomer may have a number-average molecular weight of about 805 to about 955. Accordingly, the resin composition may exhibit the characteristics of a low viscosity before being cured, and excellent or suitable shear modulus and peel strength after being cured.Type: GrantFiled: December 1, 2022Date of Patent: December 3, 2024Assignee: Samsung Display Co., Ltd.Inventor: Keisuke Morita
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Patent number: 11923567Abstract: The present invention relates to a battery cell for evaluating an internal short circuit, and a method for evaluating using the battery cell, wherein an internal short circuit state of a battery cell can be easily induced and, at the same time, an effective internal short circuit evaluation is possible, and the battery cell comprising: first and second electrodes which comprise a coated region on which an electrode mixture layer is coated on a metal current collector and a non-coated region on which an electrode mixture layer is not coated, and which comprise first and second electrode tabs which protrude in one direction from the coated region and do not have an electrode mixture layer coated thereon.Type: GrantFiled: December 10, 2020Date of Patent: March 5, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Sol Nip Lee, Jeong Min Yang
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Patent number: 11888151Abstract: The present invention relates to a method of preparing a positive electrode which includes forming a solid electrolyte by mixing a lithium salt and a polymer for a solid electrolyte in a dry atmosphere, forming a dry mixture by stirring after adding a conductive agent and a positive electrode active material to the solid electrolyte in a dry atmosphere, and pressing after coating a current collector with the dry mixture.Type: GrantFiled: March 14, 2019Date of Patent: January 30, 2024Inventors: Chang Wan Koo, Ki Tae Kim, Sang Hoon Choy
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Patent number: 11830976Abstract: A rechargeable lithium battery comprising an anode, a cathode, and a quasi-solid or solid-state electrolyte in ionic communication with the anode and the cathode, wherein the electrolyte comprises a polymer comprising chains of a polyester of phosphoric acid and a lithium salt dissolved or dispersed in the polyester of phosphoric acid. The electrolyte may further comprise from 0.1% to 50% by weight of a non-aqueous liquid solvent dispersed in the polyester of phosphoric acid. The polymer may further comprise a flame-retardant and/or particles of an inorganic solid-state electrolyte. Also provided is an electrolyte composition comprising a lithium salt and an initiator and/or a crosslinking agent dissolved or dispersed in a reactive liquid medium comprising a reactive monomer or oligomer that is a precursor to a polyester of phosphoric acid.Type: GrantFiled: January 25, 2021Date of Patent: November 28, 2023Assignee: Global Graphene Group, Inc.Inventor: Bor Z. Jang
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Patent number: 11671524Abstract: A mobile device driven based on electric power includes a connection section configured to be electrically coupled to an all-solid-state battery having a solid electrolyte, and an obtaining section configured to obtain unique information of the all-solid-state battery electrically coupled to the connection section.Type: GrantFiled: July 30, 2020Date of Patent: June 6, 2023Assignee: Seiko Epson CorporationInventors: Ryohei Horita, Nobuaki Ito
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Patent number: 11670801Abstract: The electrolyte solution for a lithium secondary battery includes: a lithium salt; a solvent; and an anode additive including 1-benzyl-5-(4-nitrophenyl)-1H-1,2,3-triazole-4-carbonitrile represented by Chemical Formula 1 below:Type: GrantFiled: June 3, 2021Date of Patent: June 6, 2023Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATION, UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)Inventors: Yoon Sung Lee, Ko Eun Kim, Sung Ho Ban, Seung Min Oh, Ik Kyu Kim, Sang Kyu Kwak, Nam Soon Choi, Sung You Hong, Dae Yeon Hwang, Seo Young Jeong, Hyeon Gyu Moon
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Patent number: 11626256Abstract: Devices that convert heat into electricity, and methods for a fabrication of the same are provided. The asymmetric thermo-electrochemical capacitor uses a GO-based positive electrode and a battery-type negative electrode to open up the operating voltage window and enhance the electrical discharge capacity for converting low-grade heat into electricity with excellent efficiency, fast thermo-charging time, and stable cycles. The thermo-electrochemical device includes a carbon-based positive electrode, a conductive polymer or a metal-organic framework as negative electrode, a current collector, and a porous separator.Type: GrantFiled: January 15, 2019Date of Patent: April 11, 2023Assignee: VERSITECH LIMITEDInventors: Shien Ping Feng, Xun Wang, Yu Ting Huang, Zeyang Zheng, Lei Wang, Ka Ho Li, Kaiyu Mu
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Patent number: 11560320Abstract: A solid electrolyte material contains Li, M, and X. M is at least one selected from metallic elements, and X is at least one selected from the group consisting of Cl, Br, and I. A plurality of atoms of X form a sublattice having a closest packed structure. An average distance between two adjacent atoms of X among the plurality of atoms of X is 1.8% or more larger than a distance between two adjacent atoms of X in a rock-salt structure composed only of Li and X.Type: GrantFiled: June 29, 2020Date of Patent: January 24, 2023Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Tetsuya Asano, Akihiro Sakai, Masashi Sakaida, Yusuke Nishio
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Patent number: 10862132Abstract: A rechargeable battery includes at least a porous base, a first electrode layer, an ionic conductor layer, and a second electrode layer. The porous base includes a conductive framework. The framework has a three-dimensional network structure. On at least part of a surface of the framework in the interior of the porous base, the first electrode layer, the ionic conductor layer, and the second electrode layer are stacked in this order. The first electrode layer and the second electrode layer have opposite polarities.Type: GrantFiled: November 21, 2018Date of Patent: December 8, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kunimitsu Yamamoto, Tsuyoshi Sasaki, Chikaaki Okuda
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Patent number: 9099746Abstract: Disclosed is an electricity storage device including a first electrode (a positive electrode (20)), a second electrode (a negative electrode (21)), and a non-aqueous electrolyte solution. The first electrode contains, as an active material, an organic compound having a quinone skeleton. The second electrode has a polarity opposite to that of the first electrode. The non-aqueous electrolyte solution contains a lithium salt and a solvent represented by the following formula (1): R—O(CH2CH2O)n—R???(1) where R and R? are each independently a saturated hydrocarbon having 1 to 5 carbon atoms, and n is an integer of 2 to 6.Type: GrantFiled: July 5, 2012Date of Patent: August 4, 2015Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO, LTD.Inventors: Yu Otsuka, Nobuhiko Hojo
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Patent number: 9017881Abstract: Provided are an electrolyte comprising an amide compound of a specific structure, in which an alkoxy group is substituted with an amine group, and an ionizable lithium salt, and an electrochemical device containing the same. The electrolyte may have excellent thermal and chemical stability and a wide electrochemical window. Also, the electrolyte may have a sufficiently low viscosity and a high ionic conductivity, and thus, may be usefully applied as an electrolyte of electrochemical devices using various anode materials.Type: GrantFiled: September 2, 2011Date of Patent: April 28, 2015Assignee: LG Chem, Ltd.Inventors: Byoung-Bae Lee, Jae-Seung Oh, Ji-Won Park, Hyo-Jin Lee, Dong-Su Kim, Yeon-Suk Hong
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Publication number: 20140349160Abstract: The purpose of the present invention is to provide a redox flow secondary battery which has low electrical resistance and excellent current efficiency in addition to durability. The present invention relates to: an electrolyte membrane for redox flow secondary batteries, which contains an ion exchange resin composition containing a fluorine-based polymer electrolyte; and a redox flow secondary battery which uses the electrolyte membrane for redox flow secondary batteries.Type: ApplicationFiled: December 27, 2012Publication date: November 27, 2014Applicant: ASAHI KASEI E-MATERIALS CORPORATIONInventors: Akihiro Kato, Naoto Miyake
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Patent number: 8722243Abstract: An inventive electrolyte material contains a lithium salt comprising the following components (A1) and (B), or contains the following components (A1), (A2) and (B): (A1) a lithium cation; (A2) an organic cation; and (B) a cyanofluorophosphate anion represented by the following general formula (1): ?P(CN)nF6-n??(1) wherein n is an integer of 1 to 5. The inventive electrolyte material is excellent in electrochemical properties, i.e., has a higher electrical conductivity and a higher oxidation potential, and is capable of forming an electrode protection film, so that a highly safe lithium secondary battery can be provided.Type: GrantFiled: May 11, 2011Date of Patent: May 13, 2014Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.Inventors: Ryouta Tatsumi, Yasuhiro Aoki, Seiji Maeda, Mio Miyano, Seiichirou Hayakawa
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Publication number: 20140093785Abstract: The invention provides a method of producing a solid sulfide electrolyte material, with this method including a microparticulation step in which a sulfide glass containing Li, S, and P is mixed with an adhesive polymer and the sulfide glass is ground.Type: ApplicationFiled: May 11, 2012Publication date: April 3, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Koichi Sugiura, Koji Kawamoto, Takayuki Koyama
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Publication number: 20130273436Abstract: A lithium ion secondary battery is provided, including: a positive electrode and a negative electrode into which, and from which, lithium ions can be introduced and be discharged reversibly, and an electrolyte membrane placed therebetween, wherein the electrolyte membrane is obtained using an electrolyte made by blending (A) a polyanion type lithium salt, (B) a boron compound, and (C) an organic solvent.Type: ApplicationFiled: October 18, 2011Publication date: October 17, 2013Applicants: MIE UNIVERSITY, SEKISUI CHEMICAL CO., LTD.Inventors: Kenichi Shinmei, Masashi Kanoh, Rasika Dasanayake Aluthge, Masaru Heishi, Takahito Itoh
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Publication number: 20130196235Abstract: A lithium-ion battery including an electrodeposited anode material having a micron-scale, three-dimensional porous foam structure separated from interpenetrating cathode material that fills the void space of the porous foam structure by a thin solid-state electrolyte which has been reductively polymerized onto the anode material in a uniform and pinhole free manner, which will significantly reduce the distance which the Li-ions are required to traverse upon the charge/discharge of the battery cell over other types of Li-ion cell designs, and a procedure for fabricating the battery are described. The interpenetrating three-dimensional structure of the cell will also provide larger energy densities than conventional solid-state Li-ion cells based on thin-film technologies. The electrodeposited anode may include an intermetallic composition effective for reversibly intercalating Li-ions.Type: ApplicationFiled: August 2, 2012Publication date: August 1, 2013Applicant: Prieto Battery, Inc.Inventors: Amy L. Prieto, James M. Mosby, Derek C. Johnson, Matthew T. Rawls
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Publication number: 20120321970Abstract: Embodiments of the invention are related to anion exchange membranes used in electrochemical metal-air cells in which the membranes function as the electrolyte material, or are used in conjunction with electrolytes such as ionic liquid electrolytes.Type: ApplicationFiled: June 18, 2012Publication date: December 20, 2012Applicant: FLUIDIC, INC.Inventors: Cody A. Friesen, Derek WOLFE, Paul Bryan JOHNSON
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Patent number: 8299270Abstract: A gel-like or solid electrolyte containing (i) an electrolyte solution containing an electrolyte dissolved in an organic solvent, (ii) a lamellar clay mineral and/or an organically modified lamellar clay mineral and (iii) a polyvalent onium salt compound and a photoelectric transducer element and a dye-sensitized solar cell using the same.Type: GrantFiled: August 14, 2007Date of Patent: October 30, 2012Assignee: The Yokohama Rubber Co., Ltd.Inventor: Tsukasa Maruyama
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Patent number: 8293407Abstract: An electrode which can be used in a fuel cell having improved power generation performance and high durability, and a fuel cell having such an electrode, are provided. An electrode having catalyst layers arranged on both surfaces of an electrolyte membrane, wherein the electrode is characterized in that an electrode binder used for constituting the catalyst layers contains a cross-linked compound (X) having a silicon-oxygen bond, a polymer material (Y) containing an acid group, and an aqueous dispersion (Z) containing a thermoplastic resin.Type: GrantFiled: March 13, 2008Date of Patent: October 23, 2012Assignee: Sekisui Chemical Co., Ltd.Inventors: Yoshiharu Konno, Toshihito Miyama, Hideyasu Nakajima, Masashi Kanoh
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Publication number: 20120082901Abstract: Li-based anodes for use in an electric current producing cells having long life time and high capacity are provided. In certain embodiments, the Li-based anode comprises at least one anode active Li-containing compound and a composition comprising at least one polymer, at least one ionic liquid, and optionally at least one lithium salt. The composition may be located between the at least one Li-containing compound and the catholyte used in the electric current producing cell. In some embodiments, the at least one polymer may be incompatible with the catholyte. This configuration of components may lead to separation between the lithium active material of the anode and the catholyte. Processes for preparing the Li-based anode and to electric current producing cells comprising such an anode are also provided.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicants: BASF SE, Sion Power CorporationInventors: Rudiger Schmidt, Daher Michael Badine, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
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Publication number: 20120082872Abstract: Spiro ammonium salts as an additive for electrolytes in electric current producing cells, in particular electric current producing cells comprising a Li-based anode, are provided. In some embodiments, the electric current producing cell comprises a cathode, a Li-based anode, and at least one electrolyte wherein the electrolyte contains at least one spiro ammonium salt.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicants: BASF SE, Sion Power CorporationInventors: Rudiger Schmidt, Daher Michael Badine, Xiao Steimle, Helmut Moehwald, Igor Kovalev, Yuriy V. Mikhaylik
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Publication number: 20110318647Abstract: Provided are an electrolyte comprising an amide compound of a specific structure, in which an alkoxy group is substituted with an amine group, and an ionizable lithium salt, and an electrochemical device containing the same. The electrolyte may have excellent thermal and chemical stability and a wide electrochemical window. Also, the electrolyte may have a sufficiently low viscosity and a high ionic conductivity, and thus, may be usefully applied as an electrolyte of electrochemical devices using various anode materials.Type: ApplicationFiled: September 2, 2011Publication date: December 29, 2011Applicant: LG CHEM, LTD.Inventors: Byoung-Bae Lee, Jae-Seung Oh, Ji-Won Park, Hyo-Jin Lee, Dong-Su Kim, Yeon-Suk Hong
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Publication number: 20110143174Abstract: Provided is a lithium secondary battery including a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a polymer electrolyte composition having a polymer electrolyte, a non-aqueous organic solvent, and a lithium salt. The content of the polymer electrolyte is 9 to 20 wt %, based on the total weight of the polymer electrolyte composition.Type: ApplicationFiled: October 22, 2010Publication date: June 16, 2011Applicant: Samsung SDI Co., Ltd.Inventors: Joong-Heon KIM, Cheol-Ho Park, Jin-Uk Lee
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Publication number: 20110033755Abstract: It has long been recognized that replacing the Li intercalated graphitic anode with a lithium foil can dramatically improve energy density due to the dramatically higher capacity of metallic lithium. However, lithium foil is not electrochemically stable in the presence of typical lithium ion battery electrolytes and thus a simple replacement of graphitic anodes with lithium foils is not possible. It was found that diblock or triblock polymers that provide both ionic conduction and structural support can be used as a stable passivating layer on a lithium foil. This passivation scheme results in improved manufacture processing for batteries that use Li electrodes and in improved safety for lithium batteries during use.Type: ApplicationFiled: April 21, 2009Publication date: February 10, 2011Applicant: Seeo, IncInventors: Hany Basam Eitouni, Mohit Singh, Nitash Pervez Balsara, William Hudson, Ilan R. Gur
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Patent number: 7727675Abstract: A polymer electrolyte includes a heat-treated polymerization product of a polyurethane-based compound and a polyethylene(meth)acrylic acid, wherein the polyurethane-based compound is produced by polymerizing a diisocyanate-based compound, a phosphoric acid-based polyol, and a chain extender. The polymer electrolyte has a high ionic conductivity at high temperatures without causing deformation of an electrolyte membrane. The polymer electrolyte membrane can be inexpensively and simply manufactured, and the thickness of the membrane can be easily controlled. In addition, a large amount of phosphoric acid can be impregnated into the polymer electrolyte. A fuel cell that is operative at a temperature of 100° C. or higher under non-humidified conditions and has improved energy generating efficiency can be prepared by employing the polymer electrolyte membrane.Type: GrantFiled: September 10, 2007Date of Patent: June 1, 2010Assignee: Samsung SDI Co., Ltd.Inventors: Myung-dong Cho, Tae-young Kim
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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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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: 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: 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: 7432017Abstract: Electrochemical structures with a protective interlayer for prevention of deleterious reactions between an active metal electrode and polymer electrolytes, and methods for their fabrication. The structures may be incorporated in battery cells. The interlayer is capable of protecting an active metal anode and a polymer electrolyte from deleterious reaction with one another while providing a high level of ionic conductivity to enhance performance of a battery cell in which the structure is incorporated. The interlayer has a high ionic conductivity, at least 10?7 S/cm, generally at least 10?6 S/cm, and as high as 10?3 S/cm or higher. The interlayer may be composed, in whole or in part, of active metal nitrides, active metal phosphides or active metal halides. These materials may be applied preformed, or they may be formed in situ by conversion of applied precursors on contact with the active metal anode material.Type: GrantFiled: October 14, 2003Date of Patent: October 7, 2008Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Yevgeniy S. Nimon, Bruce D. Katz
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Patent number: 7115333Abstract: An apparatus for generating electricity having an anode electrode, a cathode electrode and a proton exchange membrane comprising poly(vinyl alcohol) disposed between the anode electrode and the cathode electrode. The proton exchange membrane of this invention is suitable for operating at a temperature over an entire range of about room temperature to about 170° C. In accordance with preferred embodiments, the membrane includes one or more cross-linking agents.Type: GrantFiled: May 6, 2003Date of Patent: October 3, 2006Assignee: Gas Technology InstituteInventors: Qinbai Fan, Hamid Hussain
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Patent number: 7008564Abstract: A solid molecular composite polymer-based electrolyte is made for batteries, wherein silicate compositing produces a electrolytic polymer with a semi-rigid silicate condensate framework, and then mechanical-stabilization by radiation of the outer surface of the composited material is done to form a durable and non-tacky texture on the electrolyte. The preferred ultraviolet radiation produces this desirable outer surface by creating a thin, shallow skin of crosslinked polymer on the composite material. Preferably, a short-duration of low-medium range ultraviolet radiation is used to crosslink the polymers only a short distance into the polymer, so that the properties of the bulk of the polymer and the bulk of the molecular composite material remain unchanged, but the tough and stable skin formed on the outer surface lends durability and processability to the entire composite material product.Type: GrantFiled: July 11, 2002Date of Patent: March 7, 2006Assignee: Battelle Energy Alliance, LLCInventors: Mason K. Harrup, Frederick F. Stewart, Eric S. Peterson
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Patent number: 6955867Abstract: An object of the present invention is to provide a non-aqueous electrolyte secondary cell having excellent resistance to deterioration, excellent self-extinguishability or incombustibility, and excellent discharge properties at low temperatures, a deterioration inhibitor for a non-aqueous electrolyte secondary cell which can improve resistance to deterioration, and an additive for a non-aqueous electrolyte which can improve self-extinguishability or incombustibility. The non-aqueous electrolyte secondary cell has a positive electrode, a negative electrode, and, in a first aspect, a non-aqueous electrolyte containing at least 2% by volume and less than 20% by volume of a phosphazene derivative, and a supporting salt, and, in a second aspect, a non-aqueous electrolyte containing at least 20% by volume of the phosphazene derivative, and the supporting salt.Type: GrantFiled: November 15, 2000Date of Patent: October 18, 2005Assignee: Brigdestone CorporationInventors: Masashi Otsuki, Shigeki Endo, Takao Ogino
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Patent number: 6939646Abstract: A polymer electrolyte having, in a main chain, a structural unit represented by the following formula (1): —[Ar1—(SO2—N?(X+)—SO2—Ar2)m—SO2—N?(X+)—SO2—Ar1—O]—??(1) wherein Ar1 and Ar2 independently represent a divalent aromatic groups, m represents an integer of 0 to 3, and X+ represents an ion selected from hydrogen ion, an alkali metal ion and ammonium ion, which is excellent in proton conductivity, thermal resistance and strength. The polymer electrolyte is soluble in solvents and has excellent film forming property and recycling efficiency.Type: GrantFiled: March 29, 2002Date of Patent: September 6, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Hiroshi Shinoda, Katsuhiko Iwasaki, Atsushi Terahara
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Patent number: 6841299Abstract: An electrolyte composition excellent in charge-transporting property that can be prepared with ease, and a non-aqueous electrolyte secondary cell that comprises the electrolyte composition to exhibit excellent cell characteristics while preventing leakage or depletion of the electrolyte composition. The electrolyte composition comprises: a particular molten salt; a polymer prepared by a reaction between an electrophile having at least two unsaturated bonds polarized by an electron-withdrawing group and a nucleophile having a plurality of nucleophilic groups; and a metal salt containing a Group IA metal ion or a Group IIA metal ion.Type: GrantFiled: December 21, 2001Date of Patent: January 11, 2005Assignee: Fuji Photo Film Co., Ltd.Inventor: Koji Wariishi
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Patent number: 6841285Abstract: The electrochemical performance of an ion-exchange membrane in a fuel cell system may be improved by impregnating therein a perfluoroamine. The amine may be primary, secondary or tertiary. Further, the amine is preferably water insoluble or only slightly water soluble. For example, the amine may be perfluorotriamylamine or perfluorotributylamine. Use of such a membrane system within a fuel cell may allow high or low temperature operation (i.e. at temperatures greater than 100° C. or less than 0° C.) as well as operation at low relative humidity.Type: GrantFiled: August 28, 2002Date of Patent: January 11, 2005Assignee: Ballard Power Systems Inc.Inventors: David P. Wilkinson, Joy A. Roberts, Nengyou Jia, Eagranie Yuh, Shanna D. Knights, Jean St-Pierre
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Patent number: 6841304Abstract: The invention concerns novel ionic compounds with low melting point whereof the onium type cation having at least a heteroatom such as N, O, S or P bearing the positive charge and whereof the anion includes, wholly or partially, at least an ion imidide such as (FX1O)N?(OX2F) wherein X1 and X2 are identical or different and comprise SO or PF, and their use as solvent in electrochemical devices. Said composition comprises a salt wherein the anionic charge is delocalised, and can be used, inter alia, as electrolyte.Type: GrantFiled: November 9, 2001Date of Patent: January 11, 2005Assignees: ACEP, Inc., Centre National de la Recherche Scientifique, Universite de MontrealInventors: Christophe Michot, Michel Armand, Michel Gauthier, Nathalie Ravet
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Publication number: 20040197664Abstract: A battery, which has excellent safety in an overcharged state and is excellent in low-temperature characteristics and cycle characteristics, is provided.Type: ApplicationFiled: April 28, 2004Publication date: October 7, 2004Inventors: Jiro Iriyama, Yukiko Morioka, Sigeyuki Iwasa, Kentaro Nakahara, Masaharu Satoh, Masahiro Suguro
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Patent number: 6746803Abstract: A composite comprises at least one first layer which includes a composite comprising (a) from 1 to 99% by weight of a solid (I) with a primary particle size of from 5 nm to 100 &mgr;m or a mixture made from at least two solids, (b) from 99 to 1% by weight of a polymeric binder (II) obtainable by polymerizing b1) from 5 to 100% by weight, based on the binder (II), of a condensation product III made from at least one compound IV which is capable of reacting with a carboxylic acid or with a sulfonic acid or with a derivative or with a mixture of two or more of these, and at least one mol per mole of compound IV of a carboxylic or sulfonic acid V which has at least one functional group capable of free-radical polymerization, or of a derivative of these or of a mixture of two or more of these and b2) from 0 to 95% by weight, based on the binder (II), of another compound VII with an average molecular weight (number average) of at least 5000 having polyether segments in a main or side chain, where the at leaType: GrantFiled: October 9, 2001Date of Patent: June 8, 2004Assignee: BASF AktiengesellschaftInventors: Stephan Bauer, Bernd Bronstert, Helmut Möhwald
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Publication number: 20040018408Abstract: For example, polysulfated phenylene sulfonic acid, aniline, and sodium chloride are mixed in water. During this process, the interactive absorption force between polysulfated phenylene sulfonic acid and aniline is decreased by sodium ion produced by the ionization of sodium chloride. In this state, aniline is easily polymerized to produce polyaniline, and polyaniline and polysulfated phenylene sulfonic acid are compatibilized with each other to produce a compatibilized polymer in a form of solid. The compatibilized polymer is separated from the solvent and then dissolved, then being formed to have a predetermined shape. Thus, a proton conductive solid polymer electrolyte is manufactured.Type: ApplicationFiled: July 18, 2003Publication date: January 29, 2004Applicant: Honda Giken Kogyo Kabushiki KaishaInventors: Hiroshi Akita, Teruaki Komiya
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Publication number: 20040009404Abstract: A solid molecular composite polymer-based electrolyte is made for batteries, wherein silicate compositing produces a electrolytic polymer with a semi-rigid silicate condensate framework, and then mechanical-stabilization by radiation of the outer surface of the composited material is done to form a durable and non-tacky texture on the electrolyte. The preferred ultraviolet radiation produces this desirable outer surface by creating a thin, shallow skin of crosslinked polymer on the composite material. Preferably, a short-duration of low-medium range ultraviolet radiation is used to crosslink the polymers only a short distance into the polymer, so that the properties of the bulk of the polymer and the bulk of the molecular composite material remain unchanged, but the tough and stable skin formed on the outer surface lends durability and processability to the entire composite material product.Type: ApplicationFiled: July 11, 2002Publication date: January 15, 2004Inventors: Mason K. Harrup, Frederick F. Stewart, Eric S. Peterson
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Patent number: 6576371Abstract: A solid electrolyte battery with improved utilization rate of electrodes and improved cycle characteristics, the solid electrolyte battery incorporating a positive electrode; a solid electrolyte layer formed on the positive electrode, the solid electrolyte layer having a multi-layer structure with a plurality of layers; and a negative electrode formed on the solid electrolyte layer, wherein a first solid electrolyte layer in the plurality of layers, the first solid electrolyte layer being the closest layer in the plurality of layers to the positive electrode, and the first solid electrolyte layer including a polymer having a glass transition point of −60° C. or lower when measured by using a differential scanning calorimeter and a number average molecular weight of 100,000 or larger, and at least one of the plurality of layers other than the first solid electrolyte layer being formed by crosslinking a polymer solid electrolyte having a functional group that can be crosslinked.Type: GrantFiled: March 22, 2000Date of Patent: June 10, 2003Assignee: Sony CorporationInventors: Toshikazu Yasuda, Kazuhiro Noda, Takeshi Horie
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Publication number: 20030091904Abstract: A dimensionally stable, highly resilient, hybrid copolymer solid-solution electrolyte-retention film for use in a lithium ion battery in one preferred embodiment has a predominantly amorphous structure and mechanical strength despite contact with liquid solvent electrolyte. The film is a thinned (stretched), cast film of a homogeneous blend of two or more polymers, one of which is selected for its pronounced solvent retention properties. A very high surface area inorganic filler dispersed in the blend during formation thereof serves to increase the porosity of the film and thereby enhance electrolyte retention. The film is soaked in a solution of liquid polymer with liquid organic solvent electrolyte and lithium salt, for absorption thereof. Use of a cross-linked liquid polymer enhances trapping of molecules of the electrolyte into pores of the film. The electrolyte film is sandwiched between flexible active anode and cathode layers to form the lithium ion battery.Type: ApplicationFiled: July 2, 2002Publication date: May 15, 2003Applicant: LITHIUM POWER TECHNOLOGIES, INC.Inventor: M. Zafar A. Munshi
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Patent number: 6548567Abstract: The invention relates to an ionic compound corresponding to the formula [R1X1(Z1)—Q−—X2(Z2)—R2]m Mm+ in which Mm+ is a cation of valency m, each of the groups Xi is S═Z3, S═Z4, P—R3 or P—R4; Q is N, CR5, CCN or CSO2R5, each of the groups Zi is ═O, ═NC≡N, ═C(C≡N)2, ═NS(═Z)2R6 or ═C[S(═Z)2R6]2, each of the groups Ri, is Y, YO—, YS—, Y2N— or F, Y represents a monovalent organic radical or alternatively Y is a repeating unit of a polymeric frame. The compounds are useful for producing ion conducting materials or electrolytes, as catalysts and for doping polymers.Type: GrantFiled: August 17, 2001Date of Patent: April 15, 2003Inventors: Michel Armand, Christophe Michot, Yurii Yagupolskii, Lev Yagupolskii, Andrej Bezdudny, Natalya Kondratenko
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Publication number: 20030003360Abstract: The present invention pertains to solid composite cathodes which comprise (a)sulfur-containing cathode material which, in its oxidized state, comprises a polysulfide moiety of the formula, -Sm-, wherein m is an integer from 3 to 10; and (b) a non-electroactive particulate material having a strong adsorption of soluble polysulfides. The present invention also pertains to electric current producing cells comprising such solid composite cathodes, and methods of making such solid composite cathodes and electric current producing cells.Type: ApplicationFiled: June 14, 2002Publication date: January 2, 2003Applicant: Moltec CorporationInventors: Alexander Gorkovenko , Terje A. Skotheim , Zhe-Sheng Xu
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Patent number: 6475679Abstract: There is provided a non-aqueous electrolyte battery including a positive electrode, a negative electrode capable of occluding and emitting lithium ions, and a non-aqueous electrolyte containing lithium ion, in which the above-mentioned non-aqueous electrolyte is a solution containing at least one kind of the phosphazene derivatives selected from the group consisting of the phosphazene derivatives expressed by the following formula: (R1O)3P═N—SO3R1, where R1 denotes a same or different monovalent organic group and phosphazene derivatives expressed by the following formula: (R2O)3P═N—SO2—N═P(OR2)3, where R2 denotes a same or different monovalent organic group, and a lithium salt, which is capable of controlling the evaporation and decomposition of an electrolyte whose base is an organic solvent in a wide range of temperature, excels in high-temperature preservability, and exhibit superior cell performance with reduced danger of bursting and ignition.Type: GrantFiled: September 5, 2000Date of Patent: November 5, 2002Assignees: Nippon Chemical Industrial Co., Ltd., Sony CorporationInventors: Hiromu Tsutiya, Hiroshi Kawakabe, Atsushi Wakui, Tomohisa Kamata, Huy Sam
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Publication number: 20020114996Abstract: The present invention relates to mixtures of fluoroalkylphosphate salts and polymers, methods of producing same, and their use in electrolytes, batteries, capacitors, supercapacitors and galvanic cells.Type: ApplicationFiled: November 9, 2001Publication date: August 22, 2002Applicant: Merck GmbHInventors: Michael Schmidt, Frank Ott, Michael Jungnitz, Nikolai Ignatyev, Andreas Kuehner
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Patent number: 6413675Abstract: A multi layer electrolyte and a secondary cell using the multi layer electrolyte. The multi layer electrolyte comprises a solid electrolyte and other electrolyte such as gel electrolyte and/or electrolytic solution layer laminated on the solid electrolyte. The secondary cell using the multi layer electrolyte includes at least a positive electrode, a negative electrode and the multi layer electrolyte which comprises: a solid electrolyte layer; and at least one electrolyte layers selected from a gel electrolyte layer and an electrolytic solution layer and laminated on the solid electrolyte layer. By this structure, it is possible to use active material dissoluble in electrolytic solution as electrode active material and to realize a cell which can be quickly charged and discharged and which has superior capacity appearance rate and superior charge-discharge cycle characteristics.Type: GrantFiled: July 15, 1999Date of Patent: July 2, 2002Assignee: NEC CorporationInventors: Gaku Harada, Toshihiko Nishiyama, Masaki Fujiwara, Shinako Okada