The Alkali Metal Is Lithium Patents (Class 429/322)
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Patent number: 8197973Abstract: A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The cell can be in the configuration of a coin cell or the anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added. The electrolyte comprises a lithium salt dissolved in a nonaqueous solvent mixture which may include an organic cyclic carbonate such as ethylene carbonate and propylene carbon. The cell after assembly is subjected to a two step preconditioning (prediscahrge) protocol involving at least two distinct discharge steps having at lease one cycle of pulsed current drain in each step and at least one rest period (step rest) between said two steps, wherein said step rest period is carried out for a period of time at above ambient temperature. The preconditioning improves cell performance.Type: GrantFiled: June 17, 2011Date of Patent: June 12, 2012Assignee: The Gillette CompanyInventors: Nikolai N. Issaev, Michael Pozin
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Patent number: 8197969Abstract: A battery capable of improving cycle characteristics and a manufacturing yield is provided. An anode includes: an anode current collector; and an anode active material layer arranged on the anode current collector, in which the anode active material layer includes an anode active material including a plurality of pores, and the rate of change in the amount of mercury intruded into the plurality of pores is distributed so as to have a peak in a diameter range from 80 nm to 1200 nm both inclusive, the amount of mercury intruded being measured by mercury porosimetry.Type: GrantFiled: June 4, 2008Date of Patent: June 12, 2012Assignee: Sony CorporationInventors: Takakazu Hirose, Kenichi Kawase, Isamu Konishiike, Shunsuke Kurasawa, Masayuki Iwama, Koichi Matsumoto
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Publication number: 20120141882Abstract: A current collector for a nonaqueous electrolyte battery, in which oxygen content in the surface of an aluminum porous body is low. The current collector is made of an aluminum porous body. The content of oxygen in an aluminum porous body surface is 3.1% by mass or less. The aluminum porous body includes an aluminum alloy containing at least one Cr, Mn and transition metal elements. The aluminum porous body can be prepared by a method in which, after an aluminum alloy layer is formed on the surface of a resin of a resin body having continuous pores, the resin body is heated to a temperature of the melting point of the aluminum alloy or less to thermally decompose the resin body while applying a potential lower than the standard electrode potential of aluminum to the aluminum alloy layer with the resin body dipped in a molten salt.Type: ApplicationFiled: October 4, 2011Publication date: June 7, 2012Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Nobuhiro OTA, Akihisa Hosoe, Masatoshi Majima, Koji Nitta
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Publication number: 20120141881Abstract: An optimal architecture for a polymer electrolyte battery, wherein one or more layers of electrolyte (e.g., solid block-copolymer) are situated between two electrodes, is disclosed. An anolyte layer, adjacent the anode, is chosen to be chemically and electrochemically stable against the anode active material. A catholyte layer, adjacent the cathode, is chosen to be chemically and electrochemically stable against the cathode active material.Type: ApplicationFiled: August 13, 2010Publication date: June 7, 2012Applicant: SEEO, INCInventors: Michael Geier, Ilan Gur, Mohit Singh, William Hudson
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Patent number: 8192863Abstract: A flexible energy storage device comprising a flexible housing; an electrolyte contained within the housing; an anode and cathode comprise a current collector and anode/cathode material supported on the current collector. The current collector comprising a fabric substrate (101) and an electron-conductive material (102). The electron conductive material contains voids to enable penetration of the current collector by the electrolyte.Type: GrantFiled: April 18, 2007Date of Patent: June 5, 2012Assignee: Commonwealth Scientific and Industrial Research OrganisationInventors: Adam S. Best, Graeme A. Snook, Anthony G. Pandolfo, Anthony F. Hollenkamp, Ilias L. Kyratzis, Richard J. N. Helmer
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Patent number: 8168333Abstract: A solid ionic electrolyte having a neutral organic plastic crystal matrix doped with an ionic salt may be used in an electrochemical device having an anode comprising a Li-containing material having an electrochemical potential within about 1.3 V of lithium metal. Electrochemical devices are disclosed having a cathode, an anode of a Li-containing material having an electrochemical potential within about 1.3 V of lithium metal, and a solid ionic electrolyte having a neutral organic plastic crystal matrix doped with an ionic salt. Such devices have high energy density delivery capacity combined with the favorable properties of a neutral organic plastic crystal matrix such as succinonitrile.Type: GrantFiled: June 16, 2006Date of Patent: May 1, 2012Assignee: National Research Council of CanadaInventors: All Abouimrane, Isobel Davidson
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Patent number: 8168331Abstract: An electrochemical element for use at a high temperature has an anode, a cathode comprising an intercalation material having an upper reversible potential-limit of at most 4 V versus Li/Li+ as active material, and an electrolyte arranged between the cathode and anode, which electrolyte comprises an ionic liquid with an anion and a cation a pyrrolidinium ring structure having four Carbon atoms and one Nitrogen atom. Experiments revealed that rechargeable batteries comprising such an intercalation material and N—R1—N—R2-pyrrolidinium, wherein R1 and R2 are alkyl groups and R1 may be methyl and R2 may be butyl or hexyl, are particularly suitable for use at a temperature of up to about 150 degrees Celsius and may be used in oil and/or gas production wells.Type: GrantFiled: November 30, 2004Date of Patent: May 1, 2012Assignee: Shell Oil CompanyInventors: Adam Samuel Best, Hiske Landheer, Franciscus Güntherus Bernardus Ooms
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Publication number: 20120100433Abstract: The main object of the present invention is to provide a solid electrolyte with intergranular resistance decreased. The present invention solves the above-mentioned problem by providing a solid electrolyte comprising a garnet-type compound with Li ion conductivity as the main component, characterized in that a phosphate group-containing Li ion conductor is provided between particles of the above-mentioned garnet-type compound, and the phosphate group-containing Li ion conductor has a smaller particle diameter than a particle diameter of the above-mentioned garnet-type compound and makes face contact with the above-mentioned garnet-type compound.Type: ApplicationFiled: July 17, 2009Publication date: April 26, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroshi Suyama, Koji Kawamoto
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Patent number: 8153292Abstract: According to a method for manufacturing an electrode of an electrochemical device, an electrode precursor capable of absorbing and releasing lithium is provided with lithium, and the resistance of the electrode precursor is measured after absorbing lithium. In addition, a processing apparatus for an electrode of an electrochemical device includes a lithium providing section for providing lithium to such an electrode precursor, and a first measurement section for measuring the resistance of the electrode precursor after absorbing lithium.Type: GrantFiled: April 10, 2008Date of Patent: April 10, 2012Assignee: Panasonic CorporationInventor: Hideharu Takezawa
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Patent number: 8153303Abstract: A negative electrode material for lithium ion secondary batteries includes core-shell composite particles prepared by covering the surface of a graphite powder with an amorphous carbon powder via a carbide of binder pitch, the graphite powder having an average particle diameter of 5 to 30 ?m and an average lattice spacing d(002) of less than 0.3360 nm, and the amorphous carbon powder having an average particle diameter of 0.05 to 2 ?m and an average lattice spacing d(002) of 0.3360 nm or more. A method to produce the negative electrode material includes mixing a graphite powder with pitch having a softening point of 70 to 250° C., adding an amorphous carbon powder to the resulting product, kneading the mixture while applying a mechanical impact to soften the pitch and carbonizing the pitch by heat treatment of the mixture at 750 to 2250° C. in a non-oxidizing atmosphere.Type: GrantFiled: November 8, 2007Date of Patent: April 10, 2012Assignee: Tokai Carbon Co., Ltd.Inventor: Kenta Ishii
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Publication number: 20120082902Abstract: Disclosed are open-framework solids that possess superior ion-transport properties pertinent to the electrochemical performance of next-generation electrode materials for battery devices. Disclosed compounds including compositions and architectures relevant to electrical energy storage device applications have been developed through integrated solid-state and soft (solution) chemistry studies. The solids can adopt a general formula of AxMy(XO4)z, where A=mono- or divalent electropositive cations (e.g., Li+), M—trivalent transition metal cations (e.g., Fe3+, Mn3+), and X=Si, P, As, or V. Also disclosed are oxo analogs of these materials having the general formulae AaMbOc(PO4)d (a?b), and more specifically, AnMnO3x(PO4)n?2x, where A=mono- or divalent electropositive cations (e.g., Li+), M is either Fe or Mn, and x is between 0 and n/2.Type: ApplicationFiled: February 12, 2010Publication date: April 5, 2012Inventors: Shiou-Jyh Hwu, Gregory A. Becht
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Patent number: 8148017Abstract: An electrochemical energy storage device includes a negative electrode which contains a carbon material and has a negative electrode potential of 1.4 V or less relative to a lithium reference when being charged, and a non-aqueous electrolyte solution prepared by dissolving a lithium salt, an ammonium salt, and at least one kind of fluorinated benzene selected among hexafluorobenzene, pentafluorobenzene, 1,2,3,4-tetrafluorobenzene, 1,2,3,5-tetrafluorobenzene, 1,2,4,5-tetrafluorobenzene and 1,2,3-trifluorobenzene, in a non-aqueous solvent.Type: GrantFiled: March 1, 2007Date of Patent: April 3, 2012Assignee: Panasonic CorporationInventors: Tooru Matsui, Masaki Deguchi, Hiroshi Yoshizawa
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Patent number: 8142932Abstract: Disclosed herein is a core-shell spinel cathode active material for lithium secondary batteries. The core portion of the active material is made of a spinel manganese-containing material substituted with fluorine or sulfur, having 4V-grade potential and showing low-cost and high-output characteristics, and the shell portion, which comes into contact with an electrolyte, is made of a spinel transition metal-containing material, having excellent thermal stability and cycle life characteristics and showing low reactivity with the electrolyte. Thus, the cathode active material shows significantly improved cycle life characteristics and excellent thermal stability.Type: GrantFiled: December 5, 2006Date of Patent: March 27, 2012Assignee: SK Innovation Co., Ltd.Inventors: Yang Kook Sun, Ki Soo Lee
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Patent number: 8137847Abstract: An active material for a non-aqueous electrolyte secondary battery including a lithium-containing transition metal oxide containing nickel and manganese and having a closest-packed structure of oxygen, wherein an atomic ratio MLi/MT between the number of moles of lithium MLi and the number of moles of transition metal Mt contained in the lithium-containing transition metal oxide is greater than 1.0; the lithium-containing transition metal oxide has a crystal structure attributed to a hexagonal system, and the X-ray diffraction image of the crystal structure has a peak P003 attributed to the (003) plane and a peak P104 attributed to the (104) plane; an integrated intensity ratio I003/I104 between the peak P003 and the peak P104 varies reversibly within a range from 0.7 to 1.5 in association with absorption and desorption of lithium by the lithium-containing transition metal oxide; and the integrated intensity ratio varies linearly and continuously.Type: GrantFiled: March 28, 2008Date of Patent: March 20, 2012Assignees: Panasonic Corporation, Public University Corporation Osaka City UniversityInventors: Tsutomu Ohzuku, Hiroshi Yoshizawa, Kensuke Nakura
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Patent number: 8129052Abstract: Protected anode architectures for active metal anodes have a polymer adhesive seal that provides an hermetic enclosure for the active metal of the protected anode inside an anode compartment. The compartment is substantially impervious to ambient moisture and battery components such as catholyte (electrolyte about the cathode), and prevents volatile components of the protected anode, such as anolyte (electrolyte about the anode), from escaping. The architecture is formed by joining the protected anode to an anode container. The polymer adhesive seals provide an hermetic seal at the joint between a surface of the protected anode and the container.Type: GrantFiled: September 1, 2006Date of Patent: March 6, 2012Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Alexei Petrov
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Publication number: 20120052397Abstract: Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries. The electrolyte can comprise a polymeric material and, in some cases, an absorbed auxiliary material. For example, the electrolyte material can be capable of forming a gel, and the auxiliary material can comprise an electrolyte solvent. In some instances, the electrolyte material can comprise at least one organic (co)polymer selected from polyethersulfones, polyvinylalcohols (PVOH) and branched polyimides (HPI). The non-fluid material in the electrolyte, when configured for use, can, alone or in combination with the optional absorbed auxiliary material, have a yield strength greater than that of lithium metal, in some embodiments.Type: ApplicationFiled: August 24, 2011Publication date: March 1, 2012Applicants: BASF SE, Sion Power CorporationInventors: Yuriy V. Mikhaylik, Igor Kovalev, John D. Affinito, Helmut Moehwald, Rudiger Schmidt, Anna Cristadoro, Ingrid Haupt, Raimund Pietruschka
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Publication number: 20120052398Abstract: Electrochemical energy storage devices having a metal anode and a solid-state, metal-ion exchange membrane and are characterized by an interfacial layer between the anode and the membrane, wherein the interfacial layer is a solid solution comprising the metal anode and a metallic interfacial conducting agent.Type: ApplicationFiled: August 24, 2010Publication date: March 1, 2012Applicant: BATTELLE MEMORIAL INSTITUTEInventors: John P. Lemmon, Xiaochuan Lu, Guanguang Xia, Zhenguo Yang
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Publication number: 20120045696Abstract: A negative electrode of a non-aqueous electrolyte secondary battery comprises a current collector and a mixture comprising a negative electrode active material, a conductive material, and a binder on the current collector. The negative electrode active material has the overall composition: MaSibPcBd; in which: 0<a<1, 0<b<1, 0<c<1, 0<d<1, and a+b+c+d=1; and M is selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Tc, Cu, Zn, Pd, Ag, Cd, Au, Mn, Co, Ni, Sn, and Re, and mixtures thereof. A non-aqueous electrolyte secondary battery comprises a positive electrode, the negative electrode, and a non-aqueous electrolyte between the positive and negative electrodes. A method for preparing the negative electrode comprises the steps of preparing a mixture comprising a negative electrode active material, a conductive material, a binder, and a solvent; coating the mixture on a current collector; and drying the mixture.Type: ApplicationFiled: August 23, 2010Publication date: February 23, 2012Inventor: P. Subramanya Herle
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Patent number: 8119291Abstract: A non-aqueous electrolyte secondary battery including: a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; a non-aqueous electrolyte; and a porous insulating film adhered to a surface of at least one selected from the group consisting of the positive electrode and the negative electrode, the porous insulating film including an inorganic oxide filler and a film binder, wherein the ratio R of actual volume to apparent volume of the separator is not less than 0.4 and not greater than 0.7, and wherein the ratio R and a porosity P of the porous insulating film satisfy the relational formula: ?0.10?R?P?0.30.Type: GrantFiled: April 29, 2008Date of Patent: February 21, 2012Assignee: Panasonic CorporationInventors: Kaoru Inoue, Kiyomi Kato, Kohei Suzuki, Shigeo Ikuta, Yusuke Fukumoto, Tetsuya Hayashi
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Publication number: 20120034529Abstract: The main object of the present invention is to provide a sulfide solid electrolyte material with less hydrogen sulfide generation amount. The present invention solves the above-mentioned problem by providing a sulfide solid electrolyte material obtained by using a raw material composition containing Li2S and sulfide of an element of the fourteenth family or the fifteenth family, characterized by not substantially containing cross-linking sulfur and Li2S.Type: ApplicationFiled: February 2, 2010Publication date: February 9, 2012Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masahiro Tatsumisago, Akitoshi Hayashi, Shigenori Hama, Koji Kawamoto, Yasushi Tsuchida, Hiroshi Nagase, Yukiyoshi Ueno, Masato Kamiya
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Publication number: 20120028129Abstract: There are provided a method for manufacturing a solid electrolyte battery and a solid electrolyte battery, each of which can reduce the number of films and can obtain excellent performance. This method for manufacturing a solid electrolyte battery has a laminate formation step of forming a laminate in which a lower collector layer 12, an interlayer 13, and an upper collector layer 14 are laminated in this order on a substrate 11 and a step of applying a voltage to the laminate.Type: ApplicationFiled: March 17, 2010Publication date: February 2, 2012Applicant: SONY CORPORATIONInventor: Tatsuya Furuya
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Publication number: 20120021299Abstract: A solid lithium ion secondary battery with high safety and high capacity, and an electrode for the solid lithium ion secondary battery. At least one of positive and negative electrodes of the solid lithium ion secondary battery includes a lithium salt of a cyclic imide compound.Type: ApplicationFiled: June 23, 2011Publication date: January 26, 2012Applicant: Samsung Electronics Co., Ltd.Inventor: Hideaki MAEDA
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Publication number: 20120021311Abstract: Novel mixed alkali metal borohydrides are disclosed which can be used as hydrogen storage materials. Processes for producing the mixed alkali metal borohydrides and their use in hydrogen storage devices are also described.Type: ApplicationFiled: August 8, 2008Publication date: January 26, 2012Applicant: Isis Innovation LimitedInventors: William I.F. David, Marco Sommariva, Peter P. Edwards, Simon R. Johnson, Martin Owen Jones, Elizabeth Anne Nickels
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Patent number: 8101303Abstract: A rechargeable lithium battery includes a positive electrode including a positive active material being capable of intercalating and deintercalating lithium ions; a negative electrode including a negative active material being capable of intercalating and deintercalating lithium ions; and an electrolyte including a non-aqueous organic solvent and a lithium salt. The positive electrode has a positive active mass density of 3.65 g/cc or more, and the lithium salt includes lithium hexafluorophosphate (LiPF6), lithium tetrafluoroborate (LiBF4), and a lithium imide-based compound. The rechargeable lithium battery has high capacity, excellent cycle-life, and reliability at a high temperature.Type: GrantFiled: August 9, 2007Date of Patent: January 24, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Jeom-Soo Kim, Jin-Bum Kim, Yong-Chul Park, Duck-Chul Hwang, Jong-Hwa Lee
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Patent number: 8097362Abstract: Electrode active material of the invention is such that a Li3PO4 phase is mixed in with an amorphous iron-phosphate complex having a LixFePyOz composition. Applying the electrode active material of the invention to a secondary battery inhibits an irreversible reaction which reduces the irreversible capacity, thus enabling a high capacity to be maintained even when it is used at a high potential.Type: GrantFiled: February 15, 2008Date of Patent: January 17, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventor: Motoshi Isono
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Publication number: 20120009484Abstract: Glass includes an aggregate of solid electrolyte particles including Li, P, and S, wherein when a Raman spectrum of the glass is repeatedly measured and a peak at 330 to 450 cm?1 in each Raman spectrum is separated to waveforms of individual components, a standard deviation of a waveform area ratio of each component is less than 4.0.Type: ApplicationFiled: April 7, 2010Publication date: January 12, 2012Applicant: Idemitsu Kosan Co., Ltd.Inventors: Ryo Aburatani, Minoru Senga, Tsuyoshi Ota, Masaru Nakagawa
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Publication number: 20120009483Abstract: A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, the negative active material including a metal-based active material; and a solid electrolyte having an ion conductivity of about 1.0×10?4 S/cm or greater.Type: ApplicationFiled: January 7, 2011Publication date: January 12, 2012Inventors: Hee-Young Chu, Sung-Hwan Moon, Jae-Hyuk Kim, Jong-Seo Choi
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Patent number: 8092941Abstract: The present invention concerns chemically stable solid lithium ion conductors, processes for their production and their use in batteries, accumulators, supercaps and electrochromic devices.Type: GrantFiled: January 17, 2011Date of Patent: January 10, 2012Inventors: Werner Weppner, Venkataraman Thangadurai
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Publication number: 20120003547Abstract: An electrode comprising a cast-film architecture wherein a silicon-based polymer precursor is cast on to a current collector directly from the liquid, and processed in-situ to create a high performance anode for lithium ion batteries. In this in-situ process the liquid polymer is cross-linked and pyrolyzed to create a cast-film-anode architecture. The cast-film architecture is distinctly different from the conventional powder-based ex-situ process whereby the polymer precursor is made into powders by a ex-situ process; with these powders being then combined with conducting agents and binders to create a paste which is screen printed on a current collector to produce electrode with a powder-anode architecture. The cast-film architecture obviates the need for conducting agents and binders, simplifying the production process for the anode, without a loss in performance. The energy capacity per unit volume of the anode material is two to ten times greater for the cast architecture.Type: ApplicationFiled: June 30, 2011Publication date: January 5, 2012Inventor: Rishi Raj
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Patent number: 8088518Abstract: Disclosed is a method for producing a lithium difluorobis(oxalato)phosphate solution, which is characterized by that lithium hexafluorophosphate and oxalic acid are mixed together in a nonaqueous solvent, in a manner that the molar ratio of lithium hexafluorophosphate to oxalic acid falls within a range of 1:1.90 to 1:2.10, and furthermore silicon tetrachloride is added to this, in a manner that the molar ratio of lithium hexafluorophosphate to silicon tetrachloride falls within a range of 1:0.95 to 1:1.10, thereby conducting a reaction. The lithium difluorobis(oxalato)phosphate solution produced by this method has low contents of chlorine compounds and free acids. Therefore, it can become an additive that is effective for improving performance of nonaqueous electrolyte batteries.Type: GrantFiled: December 14, 2009Date of Patent: January 3, 2012Assignee: Central Glass Company, LimitedInventors: Toshinori Mitsui, Kaname Hatakenaka
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Publication number: 20110318650Abstract: 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: ApplicationFiled: March 29, 2011Publication date: December 29, 2011Applicant: West Virginia UniversityInventors: Hui Zhang, Yinglu Jiang, Xingbo Liu
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Publication number: 20110318651Abstract: The invention relates to a cathode (A) for lithium ion accumulators, comprising (a1) at least one current collector, (a2) at least one layer comprising at least one cathode-active material which stores/releases lithium ions, at least part of layer (a2) having been compacted and/or the side of layer (a2) facing the anode having at least one layer (a3) which comprises at least one solid electrolyte which conducts lithium ions, said solid electrolyte being selected from the group consisting of inorganic solid electrolytes and mixtures thereof and being insoluble in the electrolyte system (B) used in the lithium ion accumulator, to lithium ion accumulators comprising the cathode (A) and to a process for producing the cathode (A).Type: ApplicationFiled: June 24, 2011Publication date: December 29, 2011Applicant: BASF SEInventors: Klaus Leitner, Martin Schulz-Dobrick, Colin God, Olivia Moser, Cornelia Bayer, Stefan Koller
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Publication number: 20110318652Abstract: A solid electrolyte battery using a solid electrolyte capable of realizing high conductivity, and a process for producing a solid electrolyte battery are provided. The solid electrolyte battery is structured as a laminate of a positive electrode collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode collector layer formed in order on a substrate. The solid electrolyte layer is a thin film formed of a compound of the formula Li3MO4 (M=V, Nb, Ta, or Db).Type: ApplicationFiled: March 2, 2010Publication date: December 29, 2011Applicant: SONY CORPORATIONInventor: Tatsuya Furuya
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Patent number: 8084160Abstract: A method of purifying lithium sulfide wherein lithium sulfide obtained by reacting lithium hydroxide with hydrogen sulfide in an aprotic organic solvent is washed with an organic solvent at a temperature of 100° C. or higher. Impurities contained in lithium sulfide can be reduced by the method of purification.Type: GrantFiled: October 15, 2004Date of Patent: December 27, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yoshikatsu Seino, Minoru Senga
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Publication number: 20110311883Abstract: The microbattery is formed by a stack of solid thin layers on a substrate which, starting from the substrate, successively comprises a first electrode, a solid electrolyte and a second electrode/current collector assembly. A first surface and a second surface of the electrolyte are respectively in contact with a main surface of the first electrode and a main surface of the second electrode/current collector assembly. The dimensions of the main surface of the first electrode are smaller than the dimensions of the main surface of said assembly, and the dimensions of the first surface of the solid electrolyte are smaller than the dimensions of the second surface of the solid electrolyte. The solid electrolyte is furthermore not in contact with the substrate.Type: ApplicationFiled: March 4, 2010Publication date: December 22, 2011Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Sami Oukassi, Raphael Salot, Nicolas Dunoyer, Steve Martin
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Publication number: 20110311882Abstract: Hybrid solid-liquid electrolyte lithium-ion battery devices are disclosed. Certain devices comprise anodes and cathodes conformally coated with an electron insulating and lithium ion conductive solid electrolyte layer.Type: ApplicationFiled: June 16, 2011Publication date: December 22, 2011Applicant: Alliance for Sustainable Energy, LLCInventors: Gi-Heon Kim, Yoon Seok Jung
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Publication number: 20110305958Abstract: An object is to provide a power storage device with improved cycle characteristics and a method of manufacturing the power storage device. Another object is to provide an application mode of the power storage device for which the above power storage device is used. In the method of manufacturing the power storage device, an active material layer is formed over a current collector, a solid electrolyte layer is formed over the active material layer after a natural oxide film over the active material layer is removed, and a liquid electrolyte is provided so as to be in contact with the solid electrolyte layer. Accordingly, decomposition and deterioration of the electrolyte solution which are caused by the contact between the active material layer and the electrolyte solution can be prevented, and cycle characteristics of the power storage device can be improved.Type: ApplicationFiled: June 8, 2011Publication date: December 15, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Kazutaka KURIKI
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Patent number: 8076029Abstract: A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt dissolved in a solvent mixture which contains 1,3-dioxolane and isosorbide dimethyl ether. The solvent mixture may comprise 1,3-dioxolane, 1,2-dimethoxyethane and additive isosorbide dimethyl ether. The isosorbide dimethyl ether comprises typically between about 2 and 15 percent by weight of the solvent mixture and improves cell service life and performance. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and a liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.Type: GrantFiled: January 20, 2009Date of Patent: December 13, 2011Assignee: The Gillette CompanyInventors: Michael Sliger, Nikolai N. Issaev, Eric Navok, Kenneth E. Yelm
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Patent number: 8075865Abstract: The invention relates to lithium argyrodite of the general formula (I): Li+(12-n-x)Bn+X2?6-xY?x (I), where Bn+ is selected from the group consisting of P, As, Ge, Ga, Sb, Si, Sn, Al, In, Ti, V, Nb, and Ta; X2? is selected from the group consisting of S, Se, and Te; Y? is selected from the group consisting of Cl, Br, I, F, CN, OCN, SCN, and N3; 0?x?2, and a method for the production thereof, and the use thereof as a lithium-ion electrolyte in primary and secondary electrochemical energy storage.Type: GrantFiled: October 7, 2008Date of Patent: December 13, 2011Assignee: Universitat SeigenInventors: Hans-Jörg Deiseroth, Shiao-Tong Kong, Marc Schlosser, Christof Reiner
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Publication number: 20110300451Abstract: A lithium ion conductive solid electrolyte formed by sintering a molding product containing an inorganic powder and having a porosity of 10 vol % or less, which is obtained by preparing a molding product comprising an inorganic powder as a main ingredient and sintering the molding product after pressing and/or sintering the same while pressing, the lithium ion conductive solid electrolyte providing a solid electrolyte having high battery capacity without using a liquid electrolyte, usable stably for a long time and simple and convenient in manufacture and handling also in industrial manufacture in the application use of secondary lithium ion battery or primary lithium battery, a solid electrolyte having good charge/discharge cyclic characteristic in the application use of the secondary lithium ion battery a solid electrolyte with less water permeation and being safe when used for lithium metal-air battery in the application use of primary lithium battery, a manufacturing method of the solid electrolyte, and aType: ApplicationFiled: August 22, 2011Publication date: December 8, 2011Applicant: OHARA INC.Inventor: Yasushi Inda
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Publication number: 20110274984Abstract: A main object of the present invention is to provide a sulfide solid electrolyte material that generates little hydrogen sulfide. To achieve the object, the present invention provides a sulfide solid electrolyte material which has a LiSbS2 structure.Type: ApplicationFiled: January 21, 2009Publication date: November 10, 2011Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigenori Hama, Yukiyoshi Ueno, Yasushi Tsuchida, Hiroshi Nagase, Masato Kamiya
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Patent number: 8053116Abstract: Disclosed is a lithium ion-conductive solid electrolyte exhibiting high lithium ion conductivity even at room temperature which is hardly oxidized and free from problems of toxicity and contains as components lithium (Li) element, boron (B) element, sulfur (S) element, and oxygen (O) element, and the ratio between sulfur element and oxygen element (O/S) is 0.01 to 1.43.Type: GrantFiled: January 10, 2006Date of Patent: November 8, 2011Assignees: Idemitsu Kosan Co., Ltd., National Institute for Materials ScienceInventors: Yoshikatsu Seino, Kazunori Takada
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Patent number: 8048570Abstract: Protected anode architectures have ionically conductive protective membrane architectures that, in conjunction with compliant seal structures and anode backplanes, effectively enclose an active metal anode inside the interior of an anode compartment. This enclosure prevents the active metal from deleterious reaction with the environment external to the anode compartment, which may include aqueous, ambient moisture, and/or other materials corrosive to the active metal. The compliant seal structures are substantially impervious to anolytes, catholytes, dissolved species in electrolytes, and moisture and compliant to changes in anode volume such that physical continuity between the anode protective architecture and backplane are maintained. The protected anode architectures can be used in arrays of protected anode architectures and battery cells of various configurations incorporating the protected anode architectures or arrays.Type: GrantFiled: February 15, 2008Date of Patent: November 1, 2011Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard De Jonghe, Bruce D. Katz, Alexei Petrov
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Patent number: 8034477Abstract: A chip battery includes an element body including a solid electrolyte layer, a positive electrode layer, and a negative electrode layer. Current collectors are provided on the positive electrode layer and the negative electrode layer, respectively, of the element body using a conductive material, such as Pt. In addition, protective films are provided on both end surfaces of the element body and on the current collectors so that the current collectors are exposed near the respective ends in the longitudinal direction of the element body. Further, protective films are provided on the side surfaces of the element body to define a base body. Further, terminal electrodes are provided on the base body so as to be brought into surface contact with the exposed surfaces of the current collectors on both end sides in a direction substantially perpendicular to the lamination direction of the element body.Type: GrantFiled: July 23, 2008Date of Patent: October 11, 2011Assignee: Murata Manufacuting Co., Ltd.Inventor: Kazuhiro Yamada
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Publication number: 20110244337Abstract: An all-solid-state lithium ion secondary battery containing a novel garnet-type oxide serving as a solid electrolyte. The garnet-type lithium ion-conducting oxide is one represented by the formula Li5+XLa3(ZrX, A2-X)O12, wherein A is at least one selected from the group consisting of Sc, Ti, V, Y, Nb, Hf, Ta, Al, Si, Ga, Ge, and Sn and X satisfies the inequality 1.4?X<2, or is one obtained by substituting an element having an ionic radius different from that of Zr for Zr sites in an garnet-type lithium ion-conducting oxide represented by the formula Li7La3Zr2O12, wherein the normalized intensity of an X-ray diffraction (XRD) pattern with a diffraction peak, as normalized on the basis of the intensity of a diffraction peak, is 9.2 or more.Type: ApplicationFiled: February 2, 2010Publication date: October 6, 2011Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Shingo Ohta, Tetsuro Kobayashi, Takahiko Asaoka, Mitsuru Asai
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Patent number: 8021791Abstract: An electrochemical cell includes an anode composed of a salt, a cathode insulated from the anode and a non-aqueous electrolyte in contact with the anode. The electrolyte may include an organic solvent that comprises at least approximately one percent by volume trimethylene carbonate.Type: GrantFiled: May 30, 2007Date of Patent: September 20, 2011Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Edward J. Plichta, Mary A. Hendrickson, Ronald J. Thompson
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Publication number: 20110223487Abstract: An electrochemical cell has an anode of electrochemically-active material; a cathode of electrochemically-active, porous, liquid-permeable, sintered, ceramic material; and a solid-state, liquid-impermeable electrolyte medium disposed between the anode and the cathode. The electrolyte may be a layer of glass or a layer of glass ceramic, or may be a combination of a layer of glass and a layer of glass ceramic. The cell may further contain a liquid electrolyte diffused throughout the cathode.Type: ApplicationFiled: March 2, 2011Publication date: September 15, 2011Applicant: EXCELLATRON SOLID STATE LLCInventors: Lonnie G. Johnson, Stephen Buckingham
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Publication number: 20110217578Abstract: Embodiments of the present invention relate to apparatuses and methods for fabricating electrochemical cells. One embodiment of the present invention comprises a single chamber configurable to deposit different materials on a substrate spooled between two reels. In one embodiment, the substrate is moved in the same direction around the reels, with conditions within the chamber periodically changed to result in the continuous build-up of deposited material over time. Another embodiment employs alternating a direction of movement of the substrate around the reels, with conditions in the chamber differing with each change in direction to result in the sequential build-up of deposited material over time. The chamber is equipped with different sources of energy and materials to allow the deposition of the different layers of the electrochemical cell.Type: ApplicationFiled: May 6, 2011Publication date: September 8, 2011Applicant: Sakti3, Inc.Inventors: Fabio Albano, Chia-Wei Wang, Ann Marie Sastry
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Patent number: 8012631Abstract: A solid electrolyte including a lithium (Li) element, a phosphorus (P) element and a sulfur (S) element, the 31P MAS NMR spectrum thereof having a peak ascribed to a crystal at 90.9±0.4 ppm and 86.5±0.4 ppm; and the ratio (xc) of the crystal in the solid electrolyte being from 60 mol % to 100 mol %.Type: GrantFiled: November 28, 2006Date of Patent: September 6, 2011Assignee: Idemitsu Kosan Co., LtdInventors: Yoshikatsu Seino, Masaru Nakagawa, Minoru Senga, Masatoshi Shibata
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Patent number: 8003259Abstract: A non-aqueous electrolyte secondary battery including: a positive electrode; a negative electrode; a separator interposed between the positive electrode and the negative electrode; a non-aqueous electrolyte; and a porous insulating film adhered to a surface of at least one selected from the group consisting of the positive electrode and the negative electrode, the porous insulating film including an inorganic oxide filler and a film binder, wherein the ratio R of actual volume to apparent volume of the separator is not less than 0.4 and not greater than 0.7, and wherein the ratio R and a porosity P of the porous insulating film satisfy the relational formula: ?0.10?R?P?0.30.Type: GrantFiled: April 29, 2008Date of Patent: August 23, 2011Assignee: Panasonic CorporationInventors: Kaoru Inoue, Kiyomi Kato, Kohei Suzuki, Shigeo Ikuta, Yusuke Fukumoto, Tetsuya Hayashi