The Alkali Metal Is Lithium Patents (Class 429/322)
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Patent number: 9260320Abstract: The present invention provides a ceramic material allowing a pellet having higher density and satisfactory Li ion conduction to be obtained. The ceramic material contains Li, La, Zr, Al and O and has a garnet-type or garnet-like crystal structure, the ratio of the number of moles of Li with respect to La being 2.0 or greater to 2.5 or lower.Type: GrantFiled: September 1, 2010Date of Patent: February 16, 2016Assignees: NGK Insulators, Ltd., Tokyo Metropolitan UniversityInventors: Kiyoshi Kanamura, Atsushi Kaeriyama, Toshihiro Yoshida, Akihiko Honda, Yosuke Sato
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Patent number: 9250297Abstract: A method for testing a lithium ion battery is disclosed. An under-test lithium ion battery including a cathode active material is provided. A reference voltage value is set according to the cathode active material. The under-test lithium ion battery is over charged, while an actual voltage change of the under-test lithium ion battery is tested during the over charging. A maximum voltage value is recorded before a first decrease in the actual voltage change of the under-test lithium ion battery during the over charging. The maximum voltage value is compared with the reference voltage value. A method for evaluating a safety of a lithium ion battery is also disclosed.Type: GrantFiled: November 13, 2012Date of Patent: February 2, 2016Assignees: Tsinghua University, HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Xiang-Ming He, Jian-Jun Li, Li Wang, Jian Gao
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Patent number: 9246188Abstract: Solid electrolyte antiperovskite compositions for batteries, capacitors, and other electrochemical devices have chemical formula Li3OA, Li(3-x)Mx/2OA, Li(3-x)Nx/3OA, or LiCOXzY(1-z), wherein M and N are divalent and trivalent metals respectively and wherein A is a halide or mixture of halides, and X and Y are halides.Type: GrantFiled: March 15, 2013Date of Patent: January 26, 2016Assignee: Los Alamos National Security, LLCInventors: Yusheng Zhao, Luc Louis Daemen
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Patent number: 9225006Abstract: A secondary battery includes: a cathode; an anode; and an electrolytic solution. The cathode includes a lithium composite oxide, a first compound, and a second compound. The lithium composite oxide includes lithium (Li) and a transition metal element as constituent elements. The first compound includes a first metal element different from the transition metal element as a constituent element, the first compound existing on a surface and inside of the lithium composite oxide. The second compound includes a second metal element different from the first metal element as a constituent element, the second compound existing on the surface of the lithium composite oxide.Type: GrantFiled: November 20, 2012Date of Patent: December 29, 2015Assignee: SONY CORPORATIONInventors: Satoshi Fujiki, Hideki Nakai, Yosuke Hosoya
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Patent number: 9190697Abstract: A composition comprised of nanoparticles of lithium ion conducting solid oxide material, wherein the solid oxide material is comprised of lithium ions, and at least one type of metal ion selected from pentavalent metal ions and trivalent lanthanide metal ions. Solution methods useful for synthesizing these solid oxide materials, as well as precursor solutions and components thereof, are also described. The solid oxide materials are incorporated as electrolytes into lithium ion batteries.Type: GrantFiled: May 3, 2013Date of Patent: November 17, 2015Assignee: UT-BATTELLE, LLCInventors: Chaitanya K. Narula, Claus Daniel
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Patent number: 9172112Abstract: An object of the present invention is to provide a sulfide solid electrolyte glass with high Li ion conductivity. The present invention achieves the above-mentioned object by providing a sulfide solid electrolyte glass comprising Li4P2S6, characterized by having a glass transition point.Type: GrantFiled: August 5, 2010Date of Patent: October 27, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shigenori Hama, Takamasa Ohtomo, Yuki Kato, Koji Kawamoto
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Patent number: 9166253Abstract: A solid-state battery including: a cathode, an anode, a solid-state electrolyte layer disposed between the cathode and the anode, wherein the solid-state electrolyte layer and at least the cathode of the cathode and the anode includes a sulfide solid-state electrolyte, the sulfide solid-state electrolyte includes an amorphous material and a crystalline material, a first proportion of the amorphous material in at least the cathode of the cathode and the anode is greater than a first proportion of the crystalline material in at least the cathode of the cathode and the anode, and a second proportion of the amorphous material in the solid-state electrolyte layer is less than a second proportion of the crystalline material in the solid-state electrolyte layer.Type: GrantFiled: December 4, 2013Date of Patent: October 20, 2015Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Satoshi Fujiki, Yuichi Aihara, Koji Hoshiba
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Patent number: 9160035Abstract: A method for manufacturing the lithium ion conductive substance is provided that includes the following steps: (a) a step of forming an inorganic substance that contains predetermined quantities of a Li component, an Al component, a Ti component, a Si component, and a P component, into a sheet shape, and (b) a step of interposing between materials that contain at least one kind of element selected from Zr, Hf, Y, and Sm, and sintering, a sheet-shaped formed body obtained at step (a).Type: GrantFiled: August 3, 2012Date of Patent: October 13, 2015Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Koichi Hamamoto, Yoshinobu Fujishiro, Danila Victorovich Matveev
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Patent number: 9160034Abstract: A method for producing a sulfide solid electrolyte material having a small amount of hydrogen sulfide generation and a high Li ion conductivity. To achieve the above, a method for producing a sulfide solid electrolyte material is provided, including steps of: a providing step for providing a crystallized sulfide solid electrolyte material prepared by using a raw material composition containing Li2S and P2S5; and an amorphizing step for applying amorphization treatment to the crystallized sulfide solid electrolyte material.Type: GrantFiled: June 29, 2010Date of Patent: October 13, 2015Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yuki Kato, Koji Kawamoto, Shigenori Hama, Takamasa Otomo
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Patent number: 9123969Abstract: A vehicle propulsion system comprising a plurality of solid state rechargeable battery cells configured to power a drivetrain. In accordance with once aspect of the invention, a transportation system that is powered at least in part by electricity stored in the form of rechargeable electrochemical cells. According to an embodiment of the present invention, these cells are combined in series and in parallel to form a pack that is regulated by charge and discharge control circuits that are programmed with algorithms to monitor state of charge, battery lifetime, and battery health.Type: GrantFiled: October 15, 2014Date of Patent: September 1, 2015Assignee: Sakti3, Inc.Inventors: Ann Marie Sastry, Fabio Albano, Chia-Wei Wang, Robert Kruse, Jeffrey Lebrun
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Patent number: 9115004Abstract: A negative active material comprising lithium titanate oxide having an area ratio of a diffraction peak of a (111) plane that appears at 2?=18.3°±0.4 to a diffraction peak of a (311) plane that appears at 2?=35.5°±0.4, in an XRD spectrum, in the range of about 2.2:1 to about 5.5:1, a negative electrode comprising the negative active material, a lithium secondary battery comprising the negative electrode, and a method of preparing the negative active material.Type: GrantFiled: June 11, 2012Date of Patent: August 25, 2015Assignee: SAMSUNG SDI CO., LTD.Inventors: Jong-Hee Lee, Yong-Mi Yu, Joa-Young Jeong, Jae-Myung Kim
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Patent number: 9112236Abstract: A lithium secondary battery comprising: a positive electrode and a negative electrode which each has a specific composition and specific properties; and a nonaqueous electrolyte which contains a cyclic siloxane compound represented by general formula (1), fluorosilane compound represented by general formula (2), compound represented by general formula (3), compound having an S—F bond in the molecule, nitric acid salt, nitrous acid salt, monofluorophosphoric acid salt, difluorophosphoric acid salt, acetic acid salt, or propionic acid salt in an amount of 10 ppm or more of the whole nonaqueous electrolyte. This lithium secondary battery has a high capacity, long life, and high output. [In general formula (1), R1 and R2 are an organic group having 1-12 carbon atoms and n is an integer of 3-10. In general formula (2), R3 to R5 are an organic group having 1-12 carbon atoms; x is an integer of 1-3; and p, q, and r each are an integer of 0-3, provided that 1?p+q+r?3.Type: GrantFiled: October 19, 2006Date of Patent: August 18, 2015Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Hidekazu Miyagi, Ryoichi Kato, Takayuki Nakajima, Hitoshi Suzuki, Hiroyuki Oshima
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Patent number: 9093717Abstract: Various embodiments relate to a method comprising combining a chelating agent, one or more non-aqueous organic solvents and one or more metallic compounds to produce an oxide ceramic solid in a non-aqueous solution based reaction, wherein the oxide ceramic solid contains metal-oxygen-metal bonds. The oxide ceramic solid can comprise, for example, a gel or a powder. Various devices, including electrolyte interfaces and energy storage devices, are also provided. In one embodiment, the oxide ceramic solid is a cubic garnet having a nominal formula of Li7La3Zr2O12 (LLZO).Type: GrantFiled: May 21, 2012Date of Patent: July 28, 2015Assignee: BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITYInventors: Jeffrey Sakamoto, Ezhiyl Rangasamy, Hyunjoong Kim, Yunsung Kim, Ryan Patrick Maloney
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Patent number: 9093227Abstract: Super capacitor including a gel electrolyte and manufacturing method thereof are provided. The gel electrolyte is one selected from a group consisting of a P(AN-EG-AN) copolymer, a P(AN-EG) copolymer, a P(EG-AN-EG) copolymer and a combination thereof.Type: GrantFiled: October 19, 2012Date of Patent: July 28, 2015Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Hsisheng Teng, Sheng-Shu Hou, Ping-Lin Kuo, Cheng-Wei Huang, Ching-An Wu
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Patent number: 9051201Abstract: 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: GrantFiled: April 7, 2010Date of Patent: June 9, 2015Assignee: IDEMITSU KOSAN CO., LTD.Inventors: Ryo Aburatani, Minoru Senga, Tsuyoshi Ota, Masaru Nakagawa
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Patent number: 9034525Abstract: Amorphous lithium lanthanum zirconium oxide (LLZO) is formed as an ionically-conductive electrolyte medium. The LLZO comprises by percentage of total number of atoms from about 0.1% to about 50% lithium, from about 0.1% to about 25% lanthanum, from about 0.1% to about 25% zirconium, from about 30% to about 70% oxygen and from 0.0% to about 25% carbon. At least one layer of amorphous LLZO may be formed through a sol-gel process wherein quantities of lanthanum methoxyethoxide, lithium butoxide and zirconium butoxide are dissolved in an alcohol-based solvent to form a mixture which is dispensed into a substantially planar configuration, transitioned through a gel phase, dried and cured to a substantially dry phase.Type: GrantFiled: August 2, 2010Date of Patent: May 19, 2015Assignee: Johnson IP Holding, LLCInventors: Davorin Babic, Stanley Jones
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Patent number: 9034526Abstract: A garnet-type solid electrolyte contains a crystal having (110) face, (1-10) face, (112) face, (1-12) face, and (11-2) face, the garnet-type solid electrolyte being Li7La3Zr2O12. A battery includes a solid electrolyte interposed between a positive and a negative electrode, the solid electrolyte being the garnet-type solid electrolyte. A method of producing a garnet-type solid electrolyte represented by a composition formula Li7La3Zr2O12 and has (110) face, (1-10) face, (112) face, (1-12) face, and (11-2) face as a crystal face, including a step of preparing a lithium-containing compound, a lanthanum-containing compound, and a zirconium-containing compound; a step of mixing these compounds such that a molar ratio among the elements satisfies Li:La:Zr=a:b:c (where a is from 120 to 160, b is from 1 to 5, and c is from 1 to 5); and a step of heating the mixture between 400 and 1,200° C.Type: GrantFiled: February 23, 2012Date of Patent: May 19, 2015Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SHINSHU UNIVERSITYInventors: Katsuya Teshima, Masato Hozumi
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Publication number: 20150132662Abstract: 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, P2O5, P2O3, Al2O3, SiO2, CaO, MgO, BaO, TiO2, GeO2, SiS2, Sb2O3, SnS, TaS2, P2S5, B253, 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: September 17, 2014Publication date: May 14, 2015Inventors: Hui Zhang, Xingbo Liu, Yinglu Jiang
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Patent number: 9029023Abstract: Provided are a multi-layered structure electrolyte including a gel polymer electrolyte on opposite surfaces of a ceramic solid electrolyte, for a lithium ion secondary battery including positive and negative electrodes capable of intercalating/deintercalating lithium ions, and a lithium ion secondary battery including the electrode. The electrolyte includes a gel polymer electrolyte on opposite surfaces of a ceramic solid electrolyte.Type: GrantFiled: September 5, 2012Date of Patent: May 12, 2015Assignee: Samsung Fine Chemicals Co., LtdInventor: Shin Jung Choi
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Patent number: 9023531Abstract: Disclosed is a nonaqueous secondary battery (100) comprising a positive electrode (155) having a positive current collector (151) made of a metal, and a positive electrode active material (153) composed of a lithium-metal complex oxide. The surface of the positive electrode active material (153) is coated with a lithium salt (158) having an average thickness of 20-50 nm.Type: GrantFiled: October 17, 2008Date of Patent: May 5, 2015Assignees: Toyota Jidosha Kabushiki Kaisha, Sumitomo Metal Mining Co., Ltd.Inventors: Tomoyoshi Ueki, Yutaka Oyama, Takuichi Arai, Kazuhiro Ohkawa, Koichi Yokoyama, Ryuichi Kuzuo, Katsuya Kase, Syuhei Oda
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Publication number: 20150118573Abstract: A solid electrolyte includes a plurality of particles having lithium ionic conductivity and a matrix which is interposed among the particles so as to be in contact with each of the particles and is formed from an amorphous material containing the following (a) and (b): (a) lithium atoms; and (b) an oxide of at least one element selected from the group consisting of boron, a Group 14 element in period 3 or lower, and a Group 15 element in period 3 or lower.Type: ApplicationFiled: October 22, 2014Publication date: April 30, 2015Inventors: Tomofumi YOKOYAMA, Tsutomu TERAOKA
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Publication number: 20150118572Abstract: The present disclosure generally provides for a solid-state battery, and methods of fabricating embodiments of the solid-state battery. Embodiments of the present disclosure may include an electrode for a solid-state battery, the electrode including: a current collector region including a conductive, lithium electroactive material; and a plurality of nanowires contacting the current collector region.Type: ApplicationFiled: October 29, 2013Publication date: April 30, 2015Applicant: BATTERY ENERGY STORAGE SYSTEMS-TECHNOLOGIESInventors: Isaac Lund, Fernando Gomez-Baquero, Bruce Toyama
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Publication number: 20150118571Abstract: A lithium lanthanum zirconium oxide (LLZO) having a garnet crystal structure contains fluorine in an amount up to 40 mol %. The fluorine, which may be in the form of a lithium compound such as lithium fluoride, may act as a sintering aid and promote formation of the cubic garnet phase. The sintered oxide may be a dense ceramic that includes a plurality of distributed closed pores. Solid electrolyte membranes comprising the oxide can have an ionic conductivity of at least 1×10?4 S/cm.Type: ApplicationFiled: October 17, 2014Publication date: April 30, 2015Applicant: SHANGHAI INSTITUTE OF CERAMICS, CHINESE ACADAMY OF SCIENCESInventors: Cai Liu, Zhaoyin Wen
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Publication number: 20150118574Abstract: A positive electrode for a lithium-ion secondary battery includes a positive electrode particle including a positive active material including a lithium salt, and a coating layer including an amorphous carbonaceous layer on a surface of the positive active material, and a sulfide solid electrolyte contacting the coating layer, wherein the sulfide solid electrolyte includes a solid sulfide.Type: ApplicationFiled: October 31, 2014Publication date: April 30, 2015Inventors: Heidy Visbal, Yuichi Aihara
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Patent number: 9017876Abstract: A method of producing a positive electrode active material, comprising the steps of: preparing a solution by dissolving, in a solvent, respective predetermined amounts of a lithium source, a M source, a phosphorus source and a X source necessary for forming a positive electrode active material represented by the following general formula (1) having an olivine structure; gelating the obtained solution by addition of a cyclic ether; and calcinating the generated gel to obtain a carbon-coated lithium-containing composite oxide, wherein the positive electrode active material is represented by the general formula (1): LixMyP1-zXzO4??(1) wherein M is at least one element selected from the group consisting of Fe, Ni, Mn, Zr, Sn, Al and Y, X is at least one selected from the group consisting of Si and Al, and 0<x?2, 0.8?y?1.2, 0?z?1.Type: GrantFiled: October 18, 2011Date of Patent: April 28, 2015Assignee: Sharp Kabushiki KaishaInventors: Toshitsugu Sueki, Motoaki Nishijima, Koji Ohira, Shogo Esaki, Isao Tanaka, Yukinori Koyama, Katsuhisa Tanaka, Koji Fujita, Shunsuke Murai
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Publication number: 20150111111Abstract: An all-solid battery that includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer interposed between the positive electrode layer and the negative electrode layer. At least one of the positive electrode layer and the negative electrode layer contains an electrode active material and a solid electrolyte, and a difference between a resistivity associated with ion migration and a resistivity associated with electron migration is 0 k?·cm or more and 100 k?·cm or less in the electrode layer containing the electrode active material and the solid electrolyte.Type: ApplicationFiled: December 23, 2014Publication date: April 23, 2015Inventors: Tadaaki Matsumura, Mika Tagami
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Patent number: 9005821Abstract: A nonaqueous electrolyte secondary battery includes: a positive electrode; a negative electrode; and a nonaqueous electrolyte, wherein an open circuit voltage in a completely charged state per pair of a positive electrode and a negative electrode is from 4.25 to 6.Type: GrantFiled: February 11, 2010Date of Patent: April 14, 2015Assignee: Sony CorporationInventors: Toru Odani, Tadahiko Kubota
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Publication number: 20150099190Abstract: Set forth herein are garnet material compositions, e.g., lithium-stuffed garnets and lithium-stuffed garnets doped with alumina, which are suitable for use as electrolytes and catholytes in solid state battery applications. Also set forth herein are lithium-stuffed garnet thin films having fine grains therein. Disclosed herein are novel and inventive methods of making and using lithium-stuffed garnets as catholytes, electrolytes and/or anolytes for all solid state lithium rechargeable batteries. Also disclosed herein are novel electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also set forth herein are methods for preparing novel structures, including dense thin (<50 um) free standing membranes of an ionically conducting material for use as a catholyte, electrolyte, and, or, anolyte, in an electrochemical device, a battery component (positive or negative electrode materials), or a complete solid state electrochemical energy storage device.Type: ApplicationFiled: October 7, 2014Publication date: April 9, 2015Inventors: Tim Holme, Niall Donnelly, Sriram Iyer, Adrian Winoto, Mohit Singh, Will Hudson, Dong Hee Anna Choi, Oleh Karpenko
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Publication number: 20150099197Abstract: A lithium-lanthanum-titanium oxide sintered material has a lithium ion conductivity 3.0×10?4 Scm?1 or more at a measuring temperature of 27° C., the material is described by one of general formulas (1?a)LaxLi2-3xTiO3-aSrTiO3, (1?a)LaxLi2-3xTiO3-aLa0.5K0.5TiO3, LaxLi2-3xTi1-aMaO3-a, Srx-1.5aLaaLi1.5-2xTi0.5Ta0.5O3 (0.55?x?0.59, 0?a?0.2, M=at least one of Fe or Ga), amount of Al contained is 0.35 mass % or less as Al2O3, amount of Si contained is 0.1 mass % or less as SiO2, and average particle diameter is 18 ?m or more.Type: ApplicationFiled: April 22, 2013Publication date: April 9, 2015Applicants: Toho Titanium Co., Ltd., NAKASHIMA SANGYO CO., LTD., THE GAKUSHUIN SCHOOL CORPORATIONInventors: Mamoru Nakashima, Yoshiyuki Inaguma, Mikio Nakashima
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Patent number: 8999588Abstract: A method for producing a lithium alkali transition metal oxide for use as a positive electrode material for lithium secondary batteries by a precipitation method. The positive electrode material is a lithium alkali transition metal composite oxide and is prepared by mixing a solid state mixed with alkali and transition metal carbonate and a lithium source. The mixture is thermally treated to obtain a small amount of alkali metal residual in the lithium transition metal composite oxide cathode material.Type: GrantFiled: September 18, 2012Date of Patent: April 7, 2015Assignee: UChicago Argonne, LLCInventors: Sang-Ho Park, Khalil Amine
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Publication number: 20150093652Abstract: A sulfide solid electrolyte including a sulfide product prepared by mixing at least Li2S and P2S5 in an organic solvent, wherein the organic solvent includes a tetrahydrofuran compound optionally substituted with a C1-C6 hydrocarbon group or a C1-C6 hydrocarbon group including an ether group, or a C2-C7 non-cyclic ether compound.Type: ApplicationFiled: October 2, 2014Publication date: April 2, 2015Inventors: Yuich AIHARA, Nobuya MACHIDA, Seitaro ITO
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Patent number: 8993176Abstract: An object of the present invention is to provide a sulfide solid electrolyte glass producing a tiny amount of hydrogen sulfide. The present invention attains the above-mentioned object by providing a sulfide solid electrolyte glass including Li3PS4, characterized in that Li4P2S7 is not detected by 31P NMR measurement and the content of Li2S as determined by XPS measurement is 3% by mol or less.Type: GrantFiled: July 22, 2010Date of Patent: March 31, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yuki Kato, Koji Kawamoto, Shigenori Hama, Takamasa Otomo
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Publication number: 20150086875Abstract: [Problem] To provide an electrode for all-solid-state secondary batteries, which is capable of improving the high-temperature cycle characteristics of an all-solid-state secondary battery. [Solution] An electrode for all-solid-state secondary batteries of the present invention comprises a collector, a conductive adhesive layer and an electrode mixture layer. The electrode mixture layer contains a binder, an inorganic solid electrolyte that contains sulfur atoms, and an electrode active material. The conductive adhesive layer contains conductive particles and a binder for adhesive layers, said binder being composed of a diene polymer. The diene polymer contains 10-75% by mass of a diene monomer unit, and has an iodine number of 5-350 mg/100 mg. The sulfur atoms contained in the inorganic solid electrolyte and carbon-carbon double bonds of the diene polymer are crosslinked with each other.Type: ApplicationFiled: March 27, 2013Publication date: March 26, 2015Applicant: ZEON CORPORATIONInventor: Naoki Yoshida
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Patent number: 8986895Abstract: 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: GrantFiled: February 2, 2010Date of Patent: March 24, 2015Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Shingo Ohta, Tetsuro Kobayashi, Takahiko Asaoka, Mitsuru Asai
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Publication number: 20150079481Abstract: A method of fabricating an electrochemical device comprising a lithium metal electrode, may comprise: providing a substrate with a lithium metal electrode on the surface thereof; depositing a first layer of dielectric material on the lithium metal electrode, the depositing the first layer being sputtering Li3PO4 in an argon ambient; after the depositing the first layer, inducing and maintaining a nitrogen plasma over the first layer of dielectric material to provide ion bombardment of the first layer for incorporation of nitrogen therein; and after the depositing, the inducing and the maintaining, depositing a second layer of dielectric material on the ion bombarded first layer of dielectric material, the depositing the second layer being sputtering Li3PO4 in a nitrogen-containing ambient. Electrochemical devices may comprise a barrier layer between the lithium metal electrode and the LiPON electrolyte.Type: ApplicationFiled: January 2, 2014Publication date: March 19, 2015Inventors: Lizhong SUN, Chong JIANG, Byung-Sung Leo KWAK, Joseph G. GORDON, II
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Publication number: 20150064576Abstract: A lithium-ion conductive glass-ceramic article has a crystalline component characterized by the formula MA2(XO4)3, where M represents one or more monovalent or divalent cations selected from Li, Na and Zn, A represents one or more trivalent, tetravalent or pentavalent cations selected from Al, Cr, Fe, Ga, Si, Ti, Ge, V and Nb, and X represents P cations which may be partially substituted by B cations.Type: ApplicationFiled: August 27, 2014Publication date: March 5, 2015Inventors: Bruce Gardiner Aitken, Nadja Teresia Lonnroth
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Patent number: 8968939Abstract: A solid electrolyte material that can react with an electrode active material to forms a high-resistance portion includes fluorine.Type: GrantFiled: April 28, 2010Date of Patent: March 3, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Yasushi Tsuchida, Koji Kawamoto, Yukiyoshi Ueno, Shigenori Hama, Masato Kamiya, Hiroshi Nagase
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Publication number: 20150056517Abstract: An example of a flexible membrane includes a porous membrane and a solid electrolyte coating formed on at least a portion of a surface of the porous membrane, in pores of the porous membrane, or both on the surface and in the pores. The solid electrolyte coating includes i) a polymer chain or ii) an inorganic ionically conductive material. The polymer chain or the inorganic material includes a group to interact or react with a polysulfide through covalent bonding or supramolecular interaction.Type: ApplicationFiled: August 4, 2014Publication date: February 26, 2015Inventors: Weidong Zhou, Xingcheng Xiao, Mei Cai
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Publication number: 20150056520Abstract: An impregnated solid state composite cathode is provided. The cathode contains a sintered porous active material, in which pores of the porous material are impregnated with an inorganic ionically conductive amorphous solid electrolyte. A method for producing the impregnated solid state composite cathode involves forming a pellet containing an active intercalation cathode material; sintering the pellet to form a sintered porous cathode pellet; impregnating pores of the sintered porous cathode pellet with a liquid precursor of an inorganic amorphous ionically conductive solid electrolyte; and curing the impregnated pellet to yield the composite cathode.Type: ApplicationFiled: March 1, 2013Publication date: February 26, 2015Inventors: Joykumar S. Thokchom, Davorin Babic, Lonnie G. Johnson, Lazbourne Alanzo Allie, David Ketema Johnson, William Rauch
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Publication number: 20150056518Abstract: Amorphous lithium lanthanum zirconium oxide (LLZO) is formed as an ionically-conductive electrolyte medium. The LLZO comprises by percentage of total number of atoms from about 0.1% to about 50% lithium, from about 0.1% to about 25% lanthanum, from about 0.1% to about 25% zirconium, from about 30% to about 70% oxygen and from 0.0% to about 25% carbon. At least one layer of amorphous LLZO may be formed through a sol-gel process wherein quantities of lanthanum methoxyethoxide, lithium butoxide and zirconium butoxide are dissolved in an alcohol-based solvent to form a mixture which is dispensed into a substantially planar configuration, transitioned through a gel phase, dried and cured to a substantially dry phase.Type: ApplicationFiled: October 31, 2014Publication date: February 26, 2015Applicant: JOHNSON IP HOLDING, LLCInventors: Davorin BABIC, Lonnie G. JOHNSON, William RAUCH, David Ketema JOHNSON, Stanley JONES, Lazbourne Alanzo ALLIE, Adrian M. GRANT
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Patent number: 8962194Abstract: A lithium-ion-conducting sulfide-based crystallized glass including: lithium (Li), phosphorus (P), and sulfur (S) elements, wherein the glass has diffraction peaks at 2?=17.8±0.3 deg, 18.2±0.3 deg, 19.8±0.3 deg, 21.8±0.3 deg, 23.8±0.3 deg, 25.9±0.3 deg, 29.5±0.3 deg and 30.0±0.3 deg in X-ray diffraction (CuK?: ?=1.5418 ?).Type: GrantFiled: January 31, 2005Date of Patent: February 24, 2015Assignees: Idemitsu Kosan Co., Ltd.Inventors: Minoru Senga, Yoshikatsu Seino, Masahiro Tatsumisago, Akitoshi Hayashi
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Patent number: 8962195Abstract: A lithium transition metal-based compound powder for a lithium secondary battery positive electrode material that can achieve both improvements of load characteristics such as rate and output characteristics and a higher density is a lithium transition metal-based compound powder containing, as a main component, a lithium transition metal-based compound that has a function of allowing elimination and insertion of lithium ions, and including a crystal structure belonging to a layer structure, wherein primary particles are aggregated to form secondary particles, the ratio A/B of a median diameter A of the secondary particles to an average diameter (average primary particle diameter B) is in the range of 8 to 100, and 0.01?FWHM(110)?0.5 where FWHM(110) is the half width of a (110) diffraction peak present near a diffraction angle 2? of 64.5° in a powder X-ray diffraction analysis using a CuK? line.Type: GrantFiled: September 4, 2008Date of Patent: February 24, 2015Assignee: Mitsubishi Chemical CorporationInventors: Kenji Shizuka, Kaoru Terada, Kenji Okahara, Tomohiro Kusano
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Publication number: 20150044576Abstract: An all-solid-state cell, which includes a lithium-containing anode, a cathode and a lithium ions-conducting solid-state electrolyte separator situated between the anode and the cathode. To improve the safety and cycle stability of the cell, the cathode includes a composite material including at least one lithium titanate and at least one lithium ions-conducting solid-state electrolyte. Furthermore, the invention relates to a corresponding all-solid-state battery and a mobile or stationary system equipped with it.Type: ApplicationFiled: January 24, 2013Publication date: February 12, 2015Applicant: Robert Bosch GmbHInventors: Ulrich Eisele, Alan Logeat, Hideki Ogihara
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Publication number: 20150044575Abstract: In a Li ion conductivity oxide solid electrolyte containing lithium, lanthanum, and zirconium, a part of oxygen is substituted by an element M (M=N, Cl, S, Se, or Te) having smaller electronegativity than oxygen.Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Applicant: Hitachi, Ltd.Inventors: JUN KAWAJI, Takahiro YAMAKI
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Patent number: 8951675Abstract: The disclosed embodiments provide a battery cell. The battery cell includes a cathode current collector containing graphene, a cathode active material, an electrolyte, an anode active material, and an anode current collector. The graphene may reduce the manufacturing cost and/or increase the energy density of the battery cell.Type: GrantFiled: October 13, 2011Date of Patent: February 10, 2015Assignee: Apple Inc.Inventors: Ramesh C. Bhardwaj, Richard M. Mank
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Publication number: 20150037689Abstract: Provided is a lithium secondary battery with three-dimensional network porous bodies as current collectors in which the internal resistance does not increase even after repeated charging and discharging. A lithium secondary battery including a positive electrode and a negative electrode each having as a current collector a three-dimensional network porous body, the positive electrode and the negative electrode being formed by filling at least an active material into pores of the three-dimensional network porous bodies, wherein the three-dimensional network porous body for the positive electrode is a three-dimensional network aluminum porous body having a hardness of 1.2 GPa or less, and the three-dimensional network porous body for the negative electrode is a three-dimensional network copper porous body having a hardness of 2.6 GPa or less.Type: ApplicationFiled: February 22, 2013Publication date: February 5, 2015Inventors: Junichi Nishimura, Kazuhiro Gotou, Akihisa Hosoe, Kentarou Yoshida
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Publication number: 20150037688Abstract: An all-solid-state cell contains at least a positive electrode layer, a solid electrolyte layer, and a negative electrode layer, which are arranged in a stack. The positive electrode layer contains only a positive electrode active material, and a predetermined crystal plane of the positive electrode active material is oriented in a direction of lithium ion conduction. The negative electrode layer contains a carbonaceous material, and the volume ratio of the carbonaceous material to the negative electrode layer is 70% or greater.Type: ApplicationFiled: July 25, 2014Publication date: February 5, 2015Applicant: NGK INSULATORS, LTD.Inventors: Haruo Otsuka, Naomi Hashimoto, Toshihiro Yoshida, Kenshin Kitoh
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Publication number: 20150037687Abstract: A main object of the present invention is to provide a sulfide solid electrolyte material having favorable ion conductivity and low reduction potential. The present invention solves the above-mentioned problem by providing a sulfide solid electrolyte material including an M1 element (such as a Li element), an M2 element (such as a Ge element, a Si element and a P element) and a S element, wherein the material has a peak at a position of 2?=29.58°±0.50° in X-ray diffraction measurement using a CuK? line; and when a diffraction intensity at the peak of 2?=29.58°±0.50° is regarded as IA and a diffraction intensity at a peak of 2?=27.33°±0.50° is regarded as IB, a value of IB/IA is less than 0.50, and M2 contains at least P and Si.Type: ApplicationFiled: February 5, 2013Publication date: February 5, 2015Inventors: Ryoji Kanno, Masaaki Hirayama, Yuki Kato, Takamasa Otomo, Mitsuru Sakano
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Patent number: 8945781Abstract: The present invention provides a non-aqueous electrolyte secondary battery wherein a reaction between a non-aqueous electrolyte and an electrode is suppressed and decrease in battery capacity under high temperature is restricted, so that long time excellent battery characteristics can be obtained. A non-aqueous solvent of the non-aqueous electrolyte contains: chain fluorinated carboxylic acid ester represented by the formula R1-CH2—COO—R2 where R1 represents hydrogen or alkyl group and R2 represents alkyl group and the sum of the carbon numbers of R1 and R2 is 3 or less, and in the case that R1 is hydrogen, at least one part of hydrogen in R2 is replaced with fluorine, and, in the case that R1 is alkyl group, at least one part of hydrogen in R1 and/or R2 is replaced with fluorine; and a film forming chemical compound decomposed in the range of +1.0 to 3.0 V based on an equilibrium potential between metal lithium and lithium ion.Type: GrantFiled: February 5, 2008Date of Patent: February 3, 2015Assignees: SANYO Electric Co., Ltd., Kanto Denka Kogyo Co., Ltd.Inventors: Takanobu Chiga, Keiji Saisho, Ryo Mogi, Osamu Omae
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Patent number: 8945779Abstract: A main object of the present invention is to provide a solid electrolyte material having excellent Li ion conductivity. To attain the object, the present invention provides a solid electrolyte material represented by a general formula: Lix(La1-aM1a)y(Ti1-bM2b)zO?, characterized in that “x”, “y”, and “z” satisfy relations of x+y+z=1, 0.652?x/(x+y+z)?0.753, and 0.167?y/(y+z)?0.232; “a” is 0?a?1; “b” is 0?b?1; “?” is 0.8???1.2; “M1” is at least one selected from the group consisting of Sr, Na, Nd, Pr, Sm, Gd, Dy, Y, Eu, Tb, and Ba; and “M2” is at least one selected from the group consisting of Mg, W, Mn, Al, Ge, Ru, Nb, Ta, Co, Zr, Hf, Fe, Cr, and Ga.Type: GrantFiled: April 13, 2010Date of Patent: February 3, 2015Assignee: Toyota Jidosha Kabushiki KaishaInventors: Chihiro Yada, Hiroshi Suyama, Shoji Yokoishi, Brian Elliott Hayden, Thierry Le Gall, Duncan Clifford Alan Smith, Christopher Edward Lee