Alkalated Transition Metal Chalcogenide Component Is Active Material Patents (Class 429/231.1)
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Patent number: 10454107Abstract: A positive electrode for nonaqueous electrolyte secondary batteries and a nonaqueous electrolyte secondary battery are provided with which loss of initial efficiency can be limited even if a positive electrode exposed to air is used. An aspect of a positive electrode according to the present invention for nonaqueous electrolyte secondary batteries is a positive electrode for nonaqueous electrolyte secondary batteries incorporating a lithium transition metal oxide, wherein the positive electrode for nonaqueous electrolyte secondary batteries contains a tungsten compound and a boron compound. It is particularly preferred that the tungsten compound be a tungsten-containing oxide.Type: GrantFiled: March 12, 2015Date of Patent: October 22, 2019Assignee: SANYO Electric Co., Ltd.Inventors: Fumiharu Niina, Takao Kokubu, Takeshi Ogasawara
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Patent number: 10454099Abstract: A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. The positive active material includes a core including a lithium intercalation compound and a crystalline coating compound on a surface of the core and including a crystalline aluminum hydroxide, a crystalline aluminum oxyhydroxide, or a combination thereof.Type: GrantFiled: June 5, 2017Date of Patent: October 22, 2019Assignee: Samsung SDI Co., Ltd.Inventors: Young-hun Lee, Ji-Yeon Jang, Soon-Kie Hong, Young-Ki Kim, Soon-Rewl Lee, Ick-Kyu Choi, Ji-Hyun Kim, Soo-Youn Park, Hyun-Joo Je, Chang-Wook Kim, Kyu-Suk Han
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Patent number: 10446332Abstract: Energy storage asymmetric supercapacitor devices utilizing nanoporous-nickel and graphene-copper materials, and methods for fabrication of these supercapacitor devices are described herein, in accordance with embodiments of the invention. The invention describes a single asymmetric redox-supercapacitor unit and assembly of two or more supercapacitor units connected in series to increase the voltage range of the assembly. A double-sided supercapacitor electrode embodiment of this invention, having anode materials on one side, cathode materials on the opposing side of the electrode, and a common current collector in between, is also described in this invention.Type: GrantFiled: January 25, 2018Date of Patent: October 15, 2019Inventors: Alexander Graziani Mancevski, Vladimir Mancevski
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Patent number: 10446830Abstract: The present invention discloses a high-voltage ternary positive electrode material for lithium-ion battery and preparation method thereof. The chemical formula of the material is LiNi0.6-xMgxCo0.2-yAlyMn0.2-zTizO2-dFd, wherein 0<x,y,z,d?0.05. The precursor of the positive electrode material is synthesized by gradient co-precipitation method and the positive electrode material is prepared by solid phase method. The content of nickel in the synthesized precursor particles has a gradient distribution from the inside to the outside. The obtained precursor is mixed and grinded evenly with the lithium source and the fluorine source at a certain ratio and put into the tube furnace. The obtained precursor is then pre-sintered in the oxygen-enriched air atmosphere and then heated up to be sintered, to obtain the target product.Type: GrantFiled: September 1, 2017Date of Patent: October 15, 2019Assignee: SICHUAN FUHUA NEW ENERGY HIGH-TECH CO., LTD.Inventors: Xingquan Liu, Yiding Liu, Zhenhua He
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Patent number: 10439188Abstract: A lithium secondary battery includes a cathode, an anode, a separator interposed between the cathode and the anode, and a non-aqueous electrolyte solution obtained by dissolving lithium salt in a non-aqueous solvent. The separator includes a porous substrate having pores; and a porous coating layer located on at least one surface of the porous substrate and having inorganic particles and a binder polymer, the inorganic particles being connected and fixed to each other by means of the binder polymer, the porous coating layer having pores therein formed by interstitial volumes among the inorganic particles. The non-aqueous electrolyte solution has a viscosity of 1.4 cP or above at 25° C. This lithium secondary battery gives improved safety and excellent charging/discharging characteristics due to a low risk of leakage of a non-aqueous electrolyte solution and good wettability of separator with the solvent.Type: GrantFiled: May 19, 2015Date of Patent: October 8, 2019Assignees: LG CHEM, LTD., TORAY INDUSTRIES, INC.Inventor: Sung-Hoon Yu
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Patent number: 10439210Abstract: In an aspect, a positive active material composition for a rechargeable lithium battery including a positive active material coated with a vanadium pentaoxide (V2O5) and an aqueous binder, a positive electrode including the same, and a rechargeable lithium battery including the positive electrode is disclosed.Type: GrantFiled: May 19, 2016Date of Patent: October 8, 2019Assignee: Samsung SDI Co., Ltd.Inventors: Seung-Hun Han, Myung-Duk Lim, Chae-Woong Cho
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Patent number: 10431852Abstract: A flat secondary battery has a laminate-type power generation element in which two or more plate-like electrodes are laminated via separators; and a pair of rectangular exterior members defined by long sides and short sides when viewed from a lamination direction of the two or more electrodes that seal the power generation element and an electrolyte solution. At least one exterior member of the pair of the rectangular exterior members comprises: an abutting part including an abutting surface that abuts against an uppermost layer electrode of the two or more electrodes; a sealing part at which the rectangular exterior members overlap each other at an outer circumferential position of the rectangular exterior members; and an extending part that extends from the abutting part to the sealing part, and the flat secondary battery satisfies 1?LA/LB?2.Type: GrantFiled: March 31, 2015Date of Patent: October 1, 2019Assignee: Envision AESC Japan Ltd.Inventors: Takehiro Maeda, Takamitsu Saito, Azusa Matsuo, Ami Oume, Yoshiaki Nitta
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Patent number: 10424781Abstract: Disclosed is a cathode active material comprising a combination of lithium manganese composite oxide with a spinel structure represented by the following Formula 1 and a specific oxide represented by the following Formula 2, the cathode active material having a broad potential region at 3.0 to 4.8V upon initial charge: LixMyMn2-yO4-zAZ ??(1) wherein 0.9?x?1.2, 0<y<2, and 0?z<0.2; M is at least one element selected from the group consisting of Al, Mg, Ni, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Ti and Bi; and A is at least one monovalent or bivalent anion, y?Li2M?O3.(1-y?)LiM?O2-z?A?z???(2) 0<y?<1 and 0?z?<0.Type: GrantFiled: July 28, 2017Date of Patent: September 24, 2019Assignee: LG CHEM, LTD.Inventors: Daehong Kim, MinHee Lee, YounKyoung Lee
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Patent number: 10411258Abstract: A carbonate precursor compound for manufacturing a lithium metal (M)-oxide powder usable as an active positive electrode material in lithium-ion batteries, M comprising 20 to 90 mol % Ni, 10 to 70 mol % Mn and 10 to 40 mol % Co, the precursor further comprising a sodium and sulfur impurity, wherein the sodium to sulfur molar ratio (Na/S) is 0.4<Na/S<2. The lithium metal (M)-oxide powder has a particle size distribution with 10 ?m?D50?20 ?m, a specific surface with 0.9?BET?5, the BET being expressed in g/cm2, the powder further comprises a sodium and sulfur impurity, wherein the sum (2*Nawt)+Swt of the sodium (Nawt) and sulfur (S wt) content expressed in wt % is more than 0.4 wt % and less than 1.6 wt %, and wherein the sodium to sulfur molar ratio (Na/S) is 0.4<Na/S<2.Type: GrantFiled: September 30, 2015Date of Patent: September 10, 2019Assignees: UMICORE, UMICORE KOREA LTD.Inventors: Jens Paulsen, HeonPyo Hong, JinDoo Oh
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Patent number: 10411249Abstract: The present disclosure relates to a lithium secondary battery using lithium titanium oxide (LTO) as a negative electrode active material. More specifically, the present disclosure relates to a secondary battery having improved input and output characteristics through the optimization of the pore ratio of the LTO. The lithium secondary battery including the lithium titanium oxide negative electrode active material according to the present disclosure provides an effect of significantly improved output density through the maximization of reaction active sites with electrolyte due to a porous structure.Type: GrantFiled: January 21, 2016Date of Patent: September 10, 2019Assignee: LG CHEM, LTD.Inventors: Soo-Hyun Lim, Dae-Hong Kim, Won-Hee Jeong, Tae-Jin Park
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Patent number: 10388960Abstract: A non-aqueous electrolyte battery is provided that shows good cycle performance and good storage performance under high temperature conditions and exhibits high reliability even with a battery configuration featuring high capacity. A method of manufacturing the battery is also provided.Type: GrantFiled: July 24, 2017Date of Patent: August 20, 2019Assignee: SANYO Electric Co., Ltd.Inventors: Takeshi Ogasawara, Hiroshi Minami, Naoki Imachi, Atsushi Kaiduka, Yasunori Baba, Yoshinori Kida, Shin Fujitani
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Patent number: 10381686Abstract: The present invention relates to a nonaqueous electrolyte solution comprising a nonaqueous electrolyte solvent which comprises a fluorine-containing phosphate ester represented by a specific formula, a fluorine-containing ether represented by a specific formula, and an open-chain or cyclic acid anhydride. According to the present invention, there is provided an electrolyte solution capable of realizing a lithium secondary battery having an excellent cycle characteristics with little gas generation after charge-discharge cycles.Type: GrantFiled: July 15, 2015Date of Patent: August 13, 2019Assignee: NEC CorporationInventors: Yuukou Katou, Takehiro Noguchi, Makiko Takahashi, Hideaki Sasaki
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Patent number: 10367176Abstract: The power storage device includes a positive electrode, a negative electrode, an electrolyte, and an exterior body. The positive electrode includes a positive electrode current collector and a positive electrode active material layer in contact with the positive electrode current collector. The negative electrode includes a negative electrode current collector and a negative electrode active material layer in contact with the negative electrode current collector. The positive electrode active material layer and the negative electrode active material layer overlap with each other. The positive electrode, the negative electrode, and the electrolyte are surrounded by the exterior body. When a length of the positive electrode active material layer is Py, a width of the positive electrode active material layer is Px, a length of the negative electrode active material layer is Ny, and a width of the negative electrode active material layer is Nx, Py>Px, Ny>Nx, and Ny>Py+Nx?Px are satisfied.Type: GrantFiled: April 26, 2016Date of Patent: July 30, 2019Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Minoru Takahashi, Daisuke Furumatsu, Daisuke Suzawa, Hirofumi Misono
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Patent number: 10367197Abstract: The present invention relates to a positive active material for a lithium battery, a method of preparing the same, and a lithium battery including the same. More particularly, the present invention relates to a positive active material having excellent high-capacity and thermal stability, a method of preparing the same, and a lithium battery including the same.Type: GrantFiled: September 22, 2014Date of Patent: July 30, 2019Assignee: Industry-University Cooperation Foundation Hanyang UniversityInventors: Yang-Kook Sun, Byung-Chun Park
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Patent number: 10361427Abstract: An all-solid-state battery having an olivine-type positive electrode active material and a sulfur solid electrolyte and a method for producing the all-solid-state battery is provided. The positive electrode active material is a positive electrode active material in which primary particles aggregate into secondary particles. The primary particles have an olivine-type positive electrode active material and a coating layer that coats all or a portion of the olivine-type positive electrode active material. The coating layer contains a transition metal derived from the olivine-type positive electrode active material, lithium, phosphorous and oxygen as components thereof, and the concentration of the transition metal is lower the concentration of the olivine-type positive electrode active material.Type: GrantFiled: September 16, 2016Date of Patent: July 23, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Mayuko Osaki, Yohei Shindo, Manabu Imano, Hideyuki Koga, Hidenori Miki
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Patent number: 10347944Abstract: An electrolytic solution containing a heteroelement-containing organic solvent at a mole ratio of 3-5 relative to a metal salt, the heteroelement-containing organic solvent containing a specific organic solvent having a relative permittivity of not greater than 10 and/or a dipole moment of not greater than 5D, the metal salt being a metal salt whose cation is an alkali metal, an alkaline earth metal, or aluminum and whose anion has a chemical structure represented by general formula (1) below: (R1X1)(R2SO2)N??general formula (1).Type: GrantFiled: October 5, 2015Date of Patent: July 9, 2019Assignees: UNIVERSITY OF TOKYO, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tomoyuki Kawai, Yoshihiro Nakagaki, Hiroyuki Sasaki, Yuki Hasegawa, Kohei Mase, Hitoshi Aikiyo, Toshiya Arakawa, Atsuo Yamada, Yuki Yamada
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Patent number: 10340506Abstract: A positive electrode for a lithium ion secondary battery, the positive electrode including a positive electrode particle including a positive active material particle, wherein the positive electrode particle comprises a first coating layer on a surface of the positive active material particle wherein the first coating layer includes a carbonaceous material, and a second coating layer on the first coating layer, wherein the second coating layer includes a lithium-containing compound, and a sulfide solid electrolyte contacting the positive electrode particle.Type: GrantFiled: November 25, 2015Date of Patent: July 2, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Yuichi Aihara, Heidy Hodex Visbalmendoza, Seitaro Ito
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Patent number: 10333138Abstract: The present disclosure relates to a cathode additive for a rechargeable sodium battery, to mixtures of the additive and a cathode active material, to cathodes containing the additive, to electrochemical cells with cathodes containing the additive, and to rechargeable batteries with cathodes containing the additive.Type: GrantFiled: June 29, 2016Date of Patent: June 25, 2019Assignee: Board of Regents, The University of Texas SystemInventors: John B. Goodenough, Kyusung Park
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Patent number: 10326120Abstract: Provided is a separator for a nonaqueous electrolyte battery, including a porous substrate and an adhesive porous layer that is provided on one side or both sides of the porous substrate and contains an adhesive resin. The separator has a thermal expansion coefficient of more than 0% and 10% or less in the width direction when heat-treated at 105° C. for 30 minutes.Type: GrantFiled: July 30, 2013Date of Patent: June 18, 2019Assignee: TEIJIN LIMITEDInventors: Satoshi Nishikawa, Takashi Yoshitomi
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Patent number: 10326128Abstract: Disclose are a cathode of an all-solid lithium battery, and a secondary battery system using the same. The cathode includes a lithium composite, and a method of manufacturing the lithium composite comprises: dispersing a solid electrolyte to be uniformly distributed in the pores of a mesoporous conductor to provide a solid electrolyte composite, and coating the solid electrolyte composite on the surface of a lithium compound including nonmetallic solids such as S, Se, and Te.Type: GrantFiled: November 9, 2015Date of Patent: June 18, 2019Assignee: Hyundai Motor CompanyInventors: Hee Jin Woo, Dae Gun Jin, Hee Yeon Ryu, Yoon Ji Lee, Yong Gu Kim, Na Ry Shin, Eun Ji Kwon, Sang Jin Park
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Patent number: 10312544Abstract: The method for manufacturing a particulate electrode active material provided by the present invention uses a carbon source supply material prepared by dissolving a carbon source (102) for forming a carbon coating film in a predetermined first solvent, and an electrode active material supply material prepared by dispersing a particulate electrode active material (104) in a second solvent that is compatible with the first solvent and is a poor solvent with respect to the carbon source. The carbon source supply material and the electrode active material supply material are mixed and a mixture of the electrode active material and the carbon source obtained after the mixing is calcined, thereby forming a conductive carbon film derived from the carbon source on the surface of the electrode active material.Type: GrantFiled: March 26, 2010Date of Patent: June 4, 2019Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hideyuki Yamamura, Seishu Komune, Yasuaki Yamaguchi
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Patent number: 10312508Abstract: A positive electrode active material comprising a lithium metal composite oxide having a layered crystal structure provides a novel lithium metal composite oxide powder which can suppress the reaction with an electrolytic solution and raise the charge-discharge cycle ability of a battery, and can improve the output characteristics of a battery. A lithium metal composite oxide powder comprises a particle having a surface portion where one or a combination of two or more (“surface element A”) of the group consisting of Al, Ti and Zr is present, on the surface of a particle comprising a lithium metal composite oxide having a layered crystal structure, wherein the amount of surface LiOH is smaller than 0.10% by weight, and the amount of surface Li2CO3 is smaller than 0.25% by weight; in an X-ray diffraction pattern, the ratio of an integral intensity of the (003) plane of the lithium metal composite oxide to that of the (104) plane thereof is higher than 1.Type: GrantFiled: September 3, 2015Date of Patent: June 4, 2019Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Tetsuya Mitsumoto, Daisuke Washida, Toshikazu Matsuyama, Daisuke Inoue, Hideaki Matsushima, Yoshimi Hata, Hitohiko Ide, Shinya Kagei
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Patent number: 10270083Abstract: The present invention relates to a negative electrode for a lithium secondary battery that can ensure a high energy density, a long-life characteristic, and stability by forming a film on a negative electrode for a lithium secondary battery and thus suppressing dendrites during electrodeposition, a method of manufacturing the same, and a lithium secondary battery using the same. The method of manufacturing the negative electrode for a lithium secondary battery according to the present invention includes preparing a sulfur dioxide-based sodium molten salt and forming a protective layer on the surface of a current collector by immersing the current collector in the sulfur dioxide-based sodium molten salt.Type: GrantFiled: December 2, 2016Date of Patent: April 23, 2019Assignee: Korea Electronics Technology InstituteInventors: Goojin Jeong, Youngjun Kim, Hansu Kim, Juhye Song
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Patent number: 10256505Abstract: Provided is a positive electrode active material that can be used to fabricate a nonaqueous electrolyte secondary battery having excellent output characteristics not only in an environment at normal temperature but also in all temperature environments from extremely low to high temperatures. A positive electrode active material for nonaqueous electrolyte secondary batteries, the positive electrode active material includes a boron compound and lithium-nickel-cobalt-manganese composite oxide of general formula (1) having a layered hexagonal crystal structure. The lithium-nickel-cobalt-manganese composite oxide includes secondary particles composed of agglomerated primary particles. The boron compound is present on at least part of the surface of the primary particles, and contains lithium.Type: GrantFiled: May 26, 2015Date of Patent: April 9, 2019Assignee: SUMITOMO METAL MINING CO., LTD.Inventors: Katsuya Inoue, Tetsufumi Komukai
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Patent number: 10249873Abstract: A composite positive active material including a composite represented by Formula 1: ?Li2MO3.(1??)[xLi2MnO3.(1?x)LidNiaCObM?cO2]??Formula 1 wherein, in Formula 1, M is titanium (Ti) or zirconium (Zr); M? is manganese (Mn), vanadium (V), magnesium (Mg), gallium (Ga), silicon (Si), tungsten (W), molybdenum (Mo), iron (Fe), chromium (Cr), copper (Cu), zinc (Zn), titanium (Ti), aluminum (Al), boron (B), or a combination thereof; and 0<?<0.5; 0?x<0.3; a+b+c?1; 0<a<1; 0<b<1; 0<c<1, and 0.95?d?1.05.Type: GrantFiled: July 31, 2017Date of Patent: April 2, 2019Assignees: SAMSUNG ELECTRONICS CO. LTD., SAMSUNG SDI CO., LTD.Inventors: Donghan Kim, Jayhyok Song, Jinhwan Park
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Patent number: 10230098Abstract: An active material for a battery includes a mixed phase includes a lithium titanium composite oxide phase and a nonstoichiometric titanium oxide phase. This active material is excellent in lithium absorption/desorption performance, exhibiting high electric potentials in lithium absorption/desorption and high conductivity.Type: GrantFiled: December 22, 2014Date of Patent: March 12, 2019Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hiroki Inagaki, Norio Takami
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Patent number: 10230108Abstract: An active material capable of improving the discharge capacity of a lithium ion secondary battery is provided. The active material of the present invention includes LiVOPO4 and one or more metal elements selected from the group consisting of Al, Nb, Ag, Mg, Mn, Fe, Zr, Na, K, B, Cr, Co, Ni, Cu, Zn, Si, Be, Ti, and Mo.Type: GrantFiled: March 30, 2012Date of Patent: March 12, 2019Assignee: TDK CORPORATIONInventors: Atsushi Sano, Keitaro Otsuki, Tomohiko Kato, Akiji Higuchi
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Method of manufacturing cathode active material and cathode active material manufactured by the same
Patent number: 10230107Abstract: Disclosed are a method of manufacturing a cathode active material and a cathode active material manufactured by the same, and more particularly, a cathode active material which is rinsed by a compound including thiol group, includes residual sulfur on a surface, and has decreased residual lithium and a method of manufacturing the same.Type: GrantFiled: December 16, 2016Date of Patent: March 12, 2019Assignee: ECOPRO BM CO., LTD.Inventors: Hyung Joo Noh, Suk Yong Jeon, Moon Ho Choi, Jin Kyeong Yun, Dong Hee Kim -
Patent number: 10224541Abstract: Positive electrode active materials are provided. The positive electrode active materials includes a primary particle formed of a plurality of metals including a first metal and a secondary particle formed of at least one of the primary particle. The secondary particle includes a core part, a shell part, a seed region where the primary particle having concentration gradient of the first metal is disposed and a maintain region where the primary particle having constant concentration of the first metal is disposed, the seed region adjacent to the core part and a maintain region adjacent to the sell part, and length of the seed region in a direction from the core part to the shell part is 1 ?m.Type: GrantFiled: October 29, 2015Date of Patent: March 5, 2019Assignees: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY), ENERCERAMIC INC.Inventors: Gang-Jun Park, Hyung-Joo Noh, Yang-Kook Sun, Jang-Wook Park
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Patent number: 10211456Abstract: A positive electrode active material for a lithium ion secondary battery contains: a first compound represented by chemical formula Lix(NiyMa1-y)O2 (0.95?x?1.05, 0.70?y?0.95, where Ma is at least one element selected from Co, Mn, V, Ti, Fe, Zr, Nb, Mo, Al, and W); and a second compound represented by chemical formula LiVOPO4. W>5.0° C., where W is a full width at half maximum of an exothermic peak obtained between 150° C. and 260° C. by differential scanning calorimetry (DSC) performed on a mixture of the first compound and the second compound under a condition of 5° C./min.Type: GrantFiled: February 21, 2017Date of Patent: February 19, 2019Assignee: TDK CORPORATIONInventors: Hideaki Seki, Akinobu Nojima
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Patent number: 10205192Abstract: Described are electrolyte compositions containing a non-fluorinated carbonate, a fluorinated solvent, a cyclic sulfate, at least one lithium borate salt selected from lithium bis(oxalato)borate, lithium difluoro(oxalato)borate, lithium tetrafluoroborate, or mixtures thereof, and at least one electrolyte salt. The cyclic sulfate can be represented by the formula: wherein each A is independently a hydrogen or an optionally fluorinated vinyl, allyl, acetylenic, propargyl, or C1-C3 alkyl group. The electrolyte composition may further comprise a fluorinated cyclic carbonate. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.Type: GrantFiled: May 14, 2015Date of Patent: February 12, 2019Assignee: Solvay SAInventors: Charles J. Dubois, Kostantinos Kourtakis, Jun J. Liu, Mark Gerrit Roelofs
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Patent number: 10193141Abstract: An object of the present invention is to provide a positive electrode mixture capable of conducting stable charging and discharging with a less amount of gasses generated which has an operating voltage or an initial crystal phase transition voltage of not less than 4.5 V on the basis of lithium. The present invention relates to a positive electrode mixture comprising carbon black having a bulk density of not more than 0.1 g/cm3, a crystallite size of 10 to 40 ?, an iodine adsorption of 1 to 150 mg/g, a volatile content of not more than 0.1% and a metal impurity content of not more than 20 ppm, and a positive electrode active substance having an operating voltage or an initial crystal phase transition voltage of not less than 4.5 V on the basis of lithium.Type: GrantFiled: February 24, 2015Date of Patent: January 29, 2019Assignees: TODA KOGYO CORPORATION, DENKA COMPANY LIMITEDInventors: Akihisa Kajiyama, Teruaki Santoki, Daisuke Morita, Ryuta Masaki, Takahiko Sugihara, Tsuyoshi Wakiyama, Kazutoshi Matsumoto, Akira Yoda, Taro Inada, Hiroshi Yokota, Takashi Kawasaki
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Patent number: 10186693Abstract: A flat secondary battery has a laminate-type power generation element in which two or more plate-like electrodes are laminated via each of separators; and a pair of rectangular exterior members when viewed from a lamination direction of the two or more electrodes, the rectangular exterior members sealing the laminate-type power generation element and an electrolyte solution. At least one exterior member of the pair of the rectangular exterior members comprises: an abutting part including an abutting surface that abuts against an uppermost layer electrode of the two or more electrodes; a sealing part at which the rectangular exterior members overlap each other at an outer circumferential position of the rectangular exterior members; and an extending part that extends from the abutting part to the sealing part, and the flat secondary battery satisfies: 1.03 ? L b 2 + d 2 ? 1.Type: GrantFiled: March 31, 2015Date of Patent: January 22, 2019Assignee: Nissan Motor Co., Ltd.Inventors: Azusa Matsuo, Yoshiaki Nitta, Takamitsu Saito, Ami Oume, Takehiro Maeda
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Patent number: 10181601Abstract: The present invention makes a lithium ion secondary cell exhibit high capacity when lithium manganese phosphate is used as the active material of the lithium ion secondary cell. The present invention is directed to lithium manganese phosphate nanoparticles having a ratio I20/I29 of the peak intensity at 20° to the peak intensity at 29° obtained by X-ray diffraction of greater than or equal to 0.88 and less than or equal to 1.05, and a crystallite size determined by X-ray diffraction of greater than or equal to 10 nm and less than or equal to 50 nm.Type: GrantFiled: August 17, 2017Date of Patent: January 15, 2019Assignee: TORAY INDUSTRIES, INC.Inventors: Hironobu Tsuji, Yasuo Kubota, Hiroaki Kawamura, Eiichiro Tamaki, Miyuki Tabayashi
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Patent number: 10177398Abstract: Provided are methods and computer programs for predicting lithium battery properties. One method includes operations for selecting candidate structures for the battery, and for obtaining a plurality of delithiated structures of the candidate structures with different lithium concentrations. The quantum mechanical (QM) energies of the delithiated structures are calculated, and a functional form is developed to obtain the voltage of the lithium battery. The functional form is a function of the lithium concentration and is based on the QM energies of the delithiated structures. Further, the capacity of the lithium battery is calculated based on a selected lithium concentration, where the functional form returns a cut-off voltage of the lithium battery when the lithium concentration is equal to the selected lithium concentration.Type: GrantFiled: November 23, 2010Date of Patent: January 8, 2019Assignee: EOCELL LTDInventors: Jun Li, Deepak Srivastava, Sang Yang
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Patent number: 10170762Abstract: Electrochemically active material comprising a lithium metal oxide composition approximately represented by the formula Li1+bComNinMnpO(2), where ?0.2?b?0.2, 0.2?m?0.45, 0.055?n?0.24, 0.385?p?0.72, and m+n+p is approximately 1 has been synthesized and assembled to batteries. The electrochemical performance of the batteries was evaluated. The lithium metal oxide composition in general comprises a first layered phase, a second layered phase and a spinel phase. A layered Li2MnO3 phase is at least partially activated upon charging to 4.5V. In some embodiments, the material further comprises a stabilization coating covering the lithium metal oxide composition.Type: GrantFiled: December 11, 2012Date of Patent: January 1, 2019Assignee: Zenlabs Energy, Inc.Inventors: Haixia Deng, Subramanian Venkatachalam, Sujeet Kumar, Herman A. Lopez
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Patent number: 10170758Abstract: A composite oxide with x wt.—parts Li2TiO3, preferably in its cubic modification of space group Fm-3m, y wt.—parts TiO2, z wt.—parts of Li2CO3 or LiOH, u wt.—parts of a carbon source and optionally v wt.—parts of a transition or main group metal compound and/or a sulphur containing compound, wherein x is between 2 and 3, y is between 3 and 4, z is between 0.001 and 1, u is between 0.05 and 1 and 0?v<0.1 and the metal of the transition or main group metal compound is selected from Al, Mg, Ga, Fe, Co, Sc, Y, Mn, Ni, Cr, V or mixtures thereof. Also, a process for the preparation of a composition of non-doped and doped lithium titanate Li4Ti5O12, including secondary agglomerates of primary particles, using the composite oxide and its use as anode material in secondary lithium-ion batteries.Type: GrantFiled: May 28, 2014Date of Patent: January 1, 2019Assignee: Johnson Matthey Public Limited CompanyInventors: Stefanie Rudenko, Manuel Pfanzelt, Andreas Laumann
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Patent number: 10164256Abstract: Compounds, powders, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described.Type: GrantFiled: March 14, 2017Date of Patent: December 25, 2018Assignee: Apple Inc.Inventors: Huiming Wu, Hongli Dai, Dapeng Wang, Christopher S. Johnson, John David Carter, Yanjie Cui, Arturo Gutierrez, Hakim H. Iddir, Arthur Jeremy Kropf, Yan Li, Victor A. Maroni, Anh D. Vu, Xiaoping Wang, Zhenzhen Yang
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Patent number: 10158117Abstract: A transition metal oxide containing solid-solution lithium that realizes high initial discharge capacity and capacity retention is represented by the compositional formula: Li1.5[NiaMbMnc[Li]d]O3, wherein M represents at least one kind of element selected from the group consisting of silicon, phosphorus and metal elements (excluding Ni, Mn and Li), a, b, c and d satisfy specific relationships, and n is the valence of M. The oxide has a layered structure site and a site which changes to a spinel structure by performing a charge or a charge-discharge in a predetermined electric potential range, and a spinel structure change ratio k in a range of 0.25?k<1.0 when the spinel structure change ratio is assumed to be 1 in a case where Li2MnO3 of the layered structure in the transition metal oxide containing solid-solution lithium completely changes to LiMn2O4 of the spinel structure.Type: GrantFiled: July 11, 2014Date of Patent: December 18, 2018Assignee: Nissan Motor Co., Ltd.Inventors: Atsushi Ito, Shinji Yamamoto
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Patent number: 10141565Abstract: Provided is a non-aqueous electrolyte secondary battery excellent in durability, the non-aqueous electrolyte secondary battery including a positive electrode active material, the surface of which is coated with a film formed of an inorganic solid electrolyte, wherein a change in volume of the positive electrode active material during charge and discharge is reduced to prevent deterioration of the film with which the surface of the positive electrode active material is coated. In a non-aqueous electrolyte secondary battery including a positive electrode active material, the surface of which is coated with a film formed of an inorganic solid electrolyte, the positive electrode active material is a lithium-containing composite oxide having a spinel structure, and contains at least one of Ti and Mg as an additional element.Type: GrantFiled: March 9, 2012Date of Patent: November 27, 2018Assignee: Toyota Jidosha Kabushiki KaishaInventors: Takeshi Abe, Yoshitomo Takebayashi, Ippei Toyoshima
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Patent number: 10141572Abstract: Compounds, powders, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described.Type: GrantFiled: November 6, 2017Date of Patent: November 27, 2018Assignee: Apple Inc.Inventors: Huiming Wu, Hongli Dai, Dapeng Wang, Christopher S. Johnson, John David Carter, Yanjie Cui, Arturo Gutierrez, Hakim H. Iddir, Arthur Jeremy Kropf, Yan Li, Victor A. Maroni, Anh D. Vu, Xiaoping Wang, Zhenzhen Yang
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Patent number: 10128506Abstract: An electrode for a nonaqueous electrolyte battery according to the present embodiment includes: a current collector; and an active material layer that is formed on one surface or both surfaces of the current collector. The active material layer contains a fluorine-containing aromatic compound, in which at least one of hydrogen atoms bonded to the aromatic ring has been substituted by fluorine, at 0.01 mass % or more and 1.0 mass % or less.Type: GrantFiled: September 7, 2016Date of Patent: November 13, 2018Assignee: Kabushiki Kaisha ToshibaInventors: Asato Kondo, Takashi Kuboki
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Patent number: 10122013Abstract: To provide a cathode active material having excellent cycle characteristics and a small decrease in the discharge voltage, and a process for its production. A process for producing a cathode active material, which comprises a step of mixing at least one sulfate (A) selected from the group consisting of a sulfate of Ni, a sulfate of Co and a sulfate of Mn with at least one carbonate (B) selected from the group consisting of sodium carbonate and potassium carbonate in an aqueous solution state to obtain a coprecipitated compound, a step of mixing the coprecipitated compound with an aqueous phosphate solution, a step of volatilizing a water content from the mixture of the coprecipitated compound and the aqueous phosphate solution to obtain a precursor compound, and a step of mixing the precursor compound with lithium carbonate and firing the mixture at from 500 to 1000° C.Type: GrantFiled: March 19, 2015Date of Patent: November 6, 2018Assignee: SUMITOMO CHEMICAL CO., LTD.Inventors: Tomohiro Sakai, Kentaro Tsunozaki, Michinori Suehara
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Patent number: 10090518Abstract: A method for preparing a positive electrode material for a rechargeable lithium battery, comprising the steps of: —providing a Li metal (M) oxide electroactive material, —providing an inorganic oxidizing chemical compound, —providing a chemical that is a Li-acceptor, —mixing the Li metal (M) oxide, the oxidizing compound and the Li-acceptor, and —heating the mixture at a temperature between 200 and 800° C. in an oxygen comprising atmosphere. In an embodiment the positive electrode material comprises a Li metal (M) oxide electroactive material, and between 0.15 and 5 wt % of a LiNaS04 secondary phase. The Li metal oxide may have the general formula Li1+a?M1?aO2, with a?<a and 0.9?(1+a?)/(1?a)?1.15, and M=Ni1?x?yM?xCoy, with M?=Mni?zAIz, 0?z?1, 0.1?y?0.4 and x+y?0.5.Type: GrantFiled: February 25, 2015Date of Patent: October 2, 2018Assignees: Umicore, Umicore Korea, Ltd.Inventors: Dae-Hyun Kim, Jens Paulsen
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Particle, electrode, power storage device, electronic device, and method for manufacturing electrode
Patent number: 10084186Abstract: To increase capacity per weight of a power storage device, a particle includes a first region, a second region in contact with at least part of a surface of the first region and located on the outside of the first region, and a third region in contact with at least part of a surface of the second region and located on the outside of the second region. The first and the second regions contain lithium and oxygen. At least one of the first region and the second region contains manganese. At least one of the first and the second regions contains an element M. The first region contains a first crystal having a layered rock-salt structure. The second region contains a second crystal having a layered rock-salt structure. An orientation of the first crystal is different from an orientation of the second crystal.Type: GrantFiled: October 22, 2015Date of Patent: September 25, 2018Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takahiro Kawakami, Teruaki Ochiai, Shuhei Yoshitomi, Takuya Hirohashi, Mako Motoyoshi, Yohei Momma, Junya Goto -
Patent number: 10079384Abstract: A composite cathode active material, a cathode including the same, a lithium battery including the cathode, and preparation method thereof are disclosed. The composite cathode active material includes: a core capable of intercalating and deintercalating lithium; and a crystalline coating layer disposed on at least part of a surface of the core, wherein the coating layer include a metal oxide.Type: GrantFiled: March 13, 2013Date of Patent: September 18, 2018Assignee: Samsung SDI Co., Ltd.Inventors: Ji-Hyun Kim, Yong-Chan You, Chang-Wook Kim, Jun-Seok Park
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Patent number: 10062925Abstract: Disclosed is an electrolyte solution used for a lithium secondary battery having high capacity, less undergoing aging deterioration of capacity, and also excellent in life characteristic. The electrolyte solution used for a lithium secondary battery contains a compound having a trivalent or higher boron formed by incorporation of a boroxine compound represented by (RO)3(BO)3 in which R(s) each represent independently an organic group of 1 to 6 carbon atoms and LiPF6, and a non-aqueous solvent.Type: GrantFiled: August 12, 2014Date of Patent: August 28, 2018Assignee: HITACHI, LTD.Inventors: Hiroshi Haruna, Shin Takahashi, Kazushige Kohno, Yasutaka Tanaka
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Patent number: 10050271Abstract: The invention relates to a novel process for the preparation of metal-containing compounds comprising the steps of a) forming a mixture comprising i) elemental phosphorus and ii) one or more metal-containing precursor compounds, and b) heating the mixture to a temperature of at least 150° C. Materials made by such a process are useful, for example, as electrode materials in alkali metal-ion battery applications.Type: GrantFiled: November 8, 2013Date of Patent: August 14, 2018Assignee: FARADION LIMITEDInventors: Jeremy Barker, Richard Heap, Noel Roche
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Patent number: 10044035Abstract: A lithium metal oxide powder for a cathode material in a rechargeable battery, comprising a core material and a surface layer, the core having a layered crystal structure consisting of the elements Li, a metal M and oxygen, wherein the metal M has the formula M=Co1?aM?a, with 0?a?0.05, wherein M? is selected from one or more metals of the group consisting of Al, Ga and B; and the surface layer comprising a mixture of the elements of the core material Li, M and oxygen, inorganic N-based oxides and a cubic phase oxide having a crystal structure with a Fd-3mS space group, wherein N is selected from one or more metals of the group consisting of Mg, Ti, Fe, Cu, Ca, Ba, Y, Sn, Sb, Na, Zn, Zr and Si.Type: GrantFiled: March 9, 2016Date of Patent: August 7, 2018Assignee: UmicoreInventors: Jens Paulsen, Maxime Blangero, Da-In Choi
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Patent number: 10020507Abstract: There is provided a positive electrode active material capable of achieving a high volume energy density and yet superior rate characteristics when configured as a positive electrode for lithium secondary batteries. This positive electrode active material comprises a plurality of secondary particles each comprising primary particles composed of a lithium-nickel based complex oxide having a layered rock-salt structure. The plurality of secondary particles have a volume-based average particle diameter D50 of 5 to 100 ?m, and at least part of the plurality of secondary particles are coarse secondary particles having a particle diameter of 9 ?m or greater. The coarse secondary particles have a voidage of 5 to 25%, and the ratio of through holes among all voids in the coarse secondary particles is 70% or greater.Type: GrantFiled: November 18, 2014Date of Patent: July 10, 2018Assignee: NGK Insulators, Ltd.Inventors: Nobuyuki Kobayashi, Yukinobu Yura, Shohei Yokoyama, Kei Sato