Alkalated Transition Metal Chalcogenide Component Is Active Material Patents (Class 429/231.1)
  • Patent number: 10541418
    Abstract: Provided is a nonaqueous electrolyte secondary battery in which Li3PO4 is added to a positive electrode active material layer and the increase of battery temperature when the voltage rises is suppressed. The nonaqueous electrolyte secondary battery disclosed herein includes a positive electrode, a negative electrode, and a nonaqueous electrolytic solution. The positive electrode has a positive electrode active material layer. The positive electrode active material layer includes a positive electrode active material, Li3PO4, and acetic anhydride. The content of Li3PO4 in the positive electrode active material layer is 1% by mass or more and 15% by mass or less. The content of acetic anhydride in the positive electrode active material layer is 0.02% by mass or more and 0.2% by mass or less.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: January 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideki Hagiwara, Koji Takahata, Masaki Kato, Akira Saito
  • Patent number: 10541411
    Abstract: Provided is an anode active material for energy storage devices capable of electrochemically inserting and extracting lithium ions and production method thereof, an electrode structure including the active material and flake graphite, and an energy storage device using the electrode structure as an anode. The anode active material includes secondary particles that are aggregates of 10-300 nm primary particles containing silicon as a main component. The primary particles each include, as a surface layer, a composite metal oxide layer containing at least one or more metal elements selected from at least Al, Zr, Mg, Ca, and La and Li.
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: January 21, 2020
    Inventor: Soichiro Kawakami
  • Patent number: 10532928
    Abstract: A main object of the present disclosure is to provide a method for producing a sulfide solid electrolyte material, the method that allows a concentration of lithium halide to increase and that allows drying at a low temperature. The present disclosure achieves the object by providing a method for producing a sulfide solid electrolyte material, the method comprising: a drying step of drying a precursor aqueous solution containing LiI, LiBr, and LiOH to remove water and obtain a precursor mixture; and an electrolyte synthesizing step including a sulfidization treatment to sulfurize the LiOH in the precursor mixture and obtain LiHS, a de-sulfide-hydrogenating treatment to desorb a hydrogen sulfide from the LiHS and obtain Li2S, and a synthesizing treatment to make the Li2S to react with an auxiliary material; wherein a molar ratio of the LiOH with respect to the LiI and the LiBr, LiOH/(LiI+LiBr), in the precursor aqueous solution is 3 or more and less than 6.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: January 14, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yuichi Hashimoto
  • Patent number: 10529985
    Abstract: Provided are a method of preparing a cathode active material including coating a surface of a lithium transition metal oxide with a lithium boron oxide by dry mixing the lithium transition metal oxide and a boron-containing compound and performing a heat treatment, and a cathode active material prepared thereby. A method of preparing a cathode active material according to an embodiment of the present invention may easily transform lithium impurities present in a lithium transition metal oxide into a structurally stable lithium boron oxide by performing a heat treatment near the melting point of a boron-containing compound. Also, a coating layer may be formed in which the lithium boron oxide is uniformly coated in an amount proportional to the used amount of the boron-containing compound even at a low heat treatment temperature.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: January 7, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Jin Oh, Ho Suk Shin, Jin Hyung Lim, Dong Hun Lee, Joo Hong Jin, Wang Mo Jung
  • Patent number: 10516186
    Abstract: The present invention provides a lithium secondary battery, including a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and a separator provided between the positive electrode and the negative electrode, wherein the negative electrode active material may include a titanium-based composite, wherein, when the lithium secondary battery is charged to SOC 50 under C-rate conditions of 0.1 to 40 C, the titanium-based composite has a ratio of the peak area of a plane (400) and the peak area of a plane (111) of 0.76 or more in a measured X-ray diffraction spectrum (XRD). Therefore, the present invention may provide a lithium secondary battery having excellent output characteristics and a battery pack in which a BMS prediction algorithm is simplified.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: December 24, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Sung Bin Park, Hye Lim Jeon, Woo Yeon Kong, Wang Mo Jung, Seong Hoon Kang
  • Patent number: 10511014
    Abstract: According to one embodiment, there is provided a battery module. The battery module includes five nonaqueous electrolyte batteries electrically connected in series. The five nonaqueous electrolyte batteries each include a positive electrode, a negative electrode, and a nonaqueous electrolyte. The negative electrode includes an active material including a titanium-including composite oxide. The titanium-including composite oxide includes Na and a metal element M within a crystal structure. The metal element M is at least one selected from the group consisting of Zr, Sn, V, Nb, Ta, Mo, W, Fe, Co, Mn, and Al.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: December 17, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Harada, Norio Takami, Yorikazu Yoshida, Kazuki Ise
  • Patent number: 10505233
    Abstract: According to an embodiment, an electrode is provided. The electrode group includes a stack. The stack includes a positive electrode, a negative electrode or negative electrodes, and separator. Each negative electrode includes a negative electrode current collector and a negative electrode layer provided on the negative electrode current collector. The electrode group satisfies following relational formulae (I) to (III): 10?a1/b1?16 (I); 0.7?D1/E1?1.4 (II); E1?85 (III). Here, the a1 [mm] is a thickness of the stack. The b1 [mm] is a thickness of the negative electrode current collector, or is a total thickness of the negative electrode current collectors. The D1 [?m] is a thickness of the positive electrode. The E1 [?m] is a thickness of the negative electrode.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 10, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuaki Murashi, Nobuyasu Negishi, Tatsuya Shinoda, Koichi Takeshita, Koichi Kawamura, Tatsuya Hashimoto
  • Patent number: 10497980
    Abstract: 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: Grant
    Filed: October 5, 2015
    Date of Patent: December 3, 2019
    Assignees: UNIVERSITY OF TOKYO, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomoyuki Kawai, Yoshihiro Nakagaki, Hiroyuki Sasaki, Yuki Hasegawa, Kohei Mase, Hitoshi Aikiyo, Toshiya Arakawa, Atsuo Yamada, Yuki Yamada
  • Patent number: 10483549
    Abstract: The present invention relates to a method of manufacturing an electrode current collector for a secondary battery and an electrode including an electrode current collector manufactured using the method. In particular, provided herein are a method of manufacturing an electrode current collector for a secondary battery which includes forming a CNT coating layer on a surface of an electrode current collector to increase electrical conductivity, and an electrode including an electrode current collector manufactured according to the method.
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: November 19, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Joo Yul Baek, Song Taek Oh, Young Geun Choi
  • Patent number: 10483524
    Abstract: According to an embodiment, there is provided a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode, a negative electrode, a separator sandwiched between the positive electrode and the negative electrode, and a nonaqueous electrolyte. The negative electrode contains a negative electrode active material having a Li-absorbing potential of 1 V vs. Li/Li+ or more. An electrical resistance of the negative electrode in a discharged state is within a range of 100 ?·cm to 100000 ?·cm. A pore volume ratio of pores having a pore diameter of 1 ?m or more in the separator is more than 70%. The pore volume ratio is determined from a cumulative pore volume frequency curve of the separator obtained by a mercury intrusion porosimetry.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: November 19, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidesato Saruwatari, Masataka Shikota, Dai Yamamoto
  • Patent number: 10468680
    Abstract: To show an LNCAO-type positive electrode active material for a lithium ion battery having a high discharge capacity per unit volume and excellent discharging capacity-holding properties. Nickel-lithium metal composite oxide powder includes a nickel-lithium metal composite oxide represented by General Formula (1) described below: LixNi1-y-zMyNzO1.7-2.2??(1), in which the breakdown strength of secondary particles is in a range of 80 MPa or less, the density is 3.30 g/cm3 or higher when compressed at a pressure of 192 MPa, and the density is 3.46 g/cm3 or higher when compressed at a pressure of 240 MPa. A method for producing the nickel-lithium metal composite oxide powder includes a water washing step after a firing step for producing a nickel-lithium metal composite oxide powder precursor.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: November 5, 2019
    Assignee: UMICORE
    Inventors: Hiroshi Tani, Ralph Otterstedt
  • Patent number: 10461312
    Abstract: The present invention provides a cathode active material for a nonaqueous electrolyte secondary battery with a high capacity, high stability and excellent output characteristics and a method for producing the same, and a nonaqueous electrolyte secondary battery using the cathode active material. The cathode active material for a nonaqueous electrolyte secondary battery is represented by a general formula: LitNi1-x-y-zCoxAlyTizO2 wherein 0.98?t?1.10, 0<x?0.30, 0.03?y?0.15, 0.001?z?0.03; and includes a hexagonal lithium-containing composite oxide with a layer structure of secondary particles having primary particles, in which a titanium-enriched layer is formed on a surface of the primary particles and/or a grain boundary between the primary particles. The titanium-enriched layer on the surface of the primary particles and/or a grain boundary between the primary particles serves as a lithium ion conductor, yielding smooth extraction and insertion of lithium ions.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: October 29, 2019
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Shin Imaizumi, Rei Kokado, Kensaku Mori
  • Patent number: 10454107
    Abstract: 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: Grant
    Filed: March 12, 2015
    Date of Patent: October 22, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Fumiharu Niina, Takao Kokubu, Takeshi Ogasawara
  • Patent number: 10454099
    Abstract: 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: Grant
    Filed: June 5, 2017
    Date of Patent: October 22, 2019
    Assignee: 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
  • Patent number: 10446332
    Abstract: 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: Grant
    Filed: January 25, 2018
    Date of Patent: October 15, 2019
    Inventors: Alexander Graziani Mancevski, Vladimir Mancevski
  • Patent number: 10446830
    Abstract: 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: Grant
    Filed: September 1, 2017
    Date of Patent: October 15, 2019
    Assignee: SICHUAN FUHUA NEW ENERGY HIGH-TECH CO., LTD.
    Inventors: Xingquan Liu, Yiding Liu, Zhenhua He
  • Patent number: 10439188
    Abstract: 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: Grant
    Filed: May 19, 2015
    Date of Patent: October 8, 2019
    Assignees: LG CHEM, LTD., TORAY INDUSTRIES, INC.
    Inventor: Sung-Hoon Yu
  • Patent number: 10439210
    Abstract: 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: Grant
    Filed: May 19, 2016
    Date of Patent: October 8, 2019
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung-Hun Han, Myung-Duk Lim, Chae-Woong Cho
  • Patent number: 10431852
    Abstract: 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: Grant
    Filed: March 31, 2015
    Date of Patent: October 1, 2019
    Assignee: Envision AESC Japan Ltd.
    Inventors: Takehiro Maeda, Takamitsu Saito, Azusa Matsuo, Ami Oume, Yoshiaki Nitta
  • Patent number: 10424781
    Abstract: 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: Grant
    Filed: July 28, 2017
    Date of Patent: September 24, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Daehong Kim, MinHee Lee, YounKyoung Lee
  • Patent number: 10411249
    Abstract: 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: Grant
    Filed: January 21, 2016
    Date of Patent: September 10, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Soo-Hyun Lim, Dae-Hong Kim, Won-Hee Jeong, Tae-Jin Park
  • Patent number: 10411258
    Abstract: 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: Grant
    Filed: September 30, 2015
    Date of Patent: September 10, 2019
    Assignees: UMICORE, UMICORE KOREA LTD.
    Inventors: Jens Paulsen, HeonPyo Hong, JinDoo Oh
  • Patent number: 10388960
    Abstract: 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: Grant
    Filed: July 24, 2017
    Date of Patent: August 20, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Takeshi Ogasawara, Hiroshi Minami, Naoki Imachi, Atsushi Kaiduka, Yasunori Baba, Yoshinori Kida, Shin Fujitani
  • Patent number: 10381686
    Abstract: 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: Grant
    Filed: July 15, 2015
    Date of Patent: August 13, 2019
    Assignee: NEC Corporation
    Inventors: Yuukou Katou, Takehiro Noguchi, Makiko Takahashi, Hideaki Sasaki
  • Patent number: 10367197
    Abstract: 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: Grant
    Filed: September 22, 2014
    Date of Patent: July 30, 2019
    Assignee: Industry-University Cooperation Foundation Hanyang University
    Inventors: Yang-Kook Sun, Byung-Chun Park
  • Patent number: 10367176
    Abstract: 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: Grant
    Filed: April 26, 2016
    Date of Patent: July 30, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Daisuke Furumatsu, Daisuke Suzawa, Hirofumi Misono
  • Patent number: 10361427
    Abstract: 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: Grant
    Filed: September 16, 2016
    Date of Patent: July 23, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Mayuko Osaki, Yohei Shindo, Manabu Imano, Hideyuki Koga, Hidenori Miki
  • Patent number: 10347944
    Abstract: 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: Grant
    Filed: October 5, 2015
    Date of Patent: July 9, 2019
    Assignees: UNIVERSITY OF TOKYO, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Tomoyuki Kawai, Yoshihiro Nakagaki, Hiroyuki Sasaki, Yuki Hasegawa, Kohei Mase, Hitoshi Aikiyo, Toshiya Arakawa, Atsuo Yamada, Yuki Yamada
  • Patent number: 10340506
    Abstract: 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: Grant
    Filed: November 25, 2015
    Date of Patent: July 2, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yuichi Aihara, Heidy Hodex Visbalmendoza, Seitaro Ito
  • Patent number: 10333138
    Abstract: 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: Grant
    Filed: June 29, 2016
    Date of Patent: June 25, 2019
    Assignee: Board of Regents, The University of Texas System
    Inventors: John B. Goodenough, Kyusung Park
  • Patent number: 10326128
    Abstract: 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: Grant
    Filed: November 9, 2015
    Date of Patent: June 18, 2019
    Assignee: Hyundai Motor Company
    Inventors: Hee Jin Woo, Dae Gun Jin, Hee Yeon Ryu, Yoon Ji Lee, Yong Gu Kim, Na Ry Shin, Eun Ji Kwon, Sang Jin Park
  • Patent number: 10326120
    Abstract: 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: Grant
    Filed: July 30, 2013
    Date of Patent: June 18, 2019
    Assignee: TEIJIN LIMITED
    Inventors: Satoshi Nishikawa, Takashi Yoshitomi
  • Patent number: 10312508
    Abstract: 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: Grant
    Filed: September 3, 2015
    Date of Patent: June 4, 2019
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Tetsuya Mitsumoto, Daisuke Washida, Toshikazu Matsuyama, Daisuke Inoue, Hideaki Matsushima, Yoshimi Hata, Hitohiko Ide, Shinya Kagei
  • Patent number: 10312544
    Abstract: 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: Grant
    Filed: March 26, 2010
    Date of Patent: June 4, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hideyuki Yamamura, Seishu Komune, Yasuaki Yamaguchi
  • Patent number: 10270083
    Abstract: 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: Grant
    Filed: December 2, 2016
    Date of Patent: April 23, 2019
    Assignee: Korea Electronics Technology Institute
    Inventors: Goojin Jeong, Youngjun Kim, Hansu Kim, Juhye Song
  • Patent number: 10256505
    Abstract: 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: Grant
    Filed: May 26, 2015
    Date of Patent: April 9, 2019
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Katsuya Inoue, Tetsufumi Komukai
  • Patent number: 10249873
    Abstract: 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: Grant
    Filed: July 31, 2017
    Date of Patent: April 2, 2019
    Assignees: SAMSUNG ELECTRONICS CO. LTD., SAMSUNG SDI CO., LTD.
    Inventors: Donghan Kim, Jayhyok Song, Jinhwan Park
  • Patent number: 10230108
    Abstract: 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: Grant
    Filed: March 30, 2012
    Date of Patent: March 12, 2019
    Assignee: TDK CORPORATION
    Inventors: Atsushi Sano, Keitaro Otsuki, Tomohiko Kato, Akiji Higuchi
  • Patent number: 10230107
    Abstract: 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: Grant
    Filed: December 16, 2016
    Date of Patent: March 12, 2019
    Assignee: ECOPRO BM CO., LTD.
    Inventors: Hyung Joo Noh, Suk Yong Jeon, Moon Ho Choi, Jin Kyeong Yun, Dong Hee Kim
  • Patent number: 10230098
    Abstract: 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: Grant
    Filed: December 22, 2014
    Date of Patent: March 12, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroki Inagaki, Norio Takami
  • Patent number: 10224541
    Abstract: 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: Grant
    Filed: October 29, 2015
    Date of Patent: March 5, 2019
    Assignees: IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY), ENERCERAMIC INC.
    Inventors: Gang-Jun Park, Hyung-Joo Noh, Yang-Kook Sun, Jang-Wook Park
  • Patent number: 10211456
    Abstract: 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: Grant
    Filed: February 21, 2017
    Date of Patent: February 19, 2019
    Assignee: TDK CORPORATION
    Inventors: Hideaki Seki, Akinobu Nojima
  • Patent number: 10205192
    Abstract: 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: Grant
    Filed: May 14, 2015
    Date of Patent: February 12, 2019
    Assignee: Solvay SA
    Inventors: Charles J. Dubois, Kostantinos Kourtakis, Jun J. Liu, Mark Gerrit Roelofs
  • Patent number: 10193141
    Abstract: 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: Grant
    Filed: February 24, 2015
    Date of Patent: January 29, 2019
    Assignees: TODA KOGYO CORPORATION, DENKA COMPANY LIMITED
    Inventors: Akihisa Kajiyama, Teruaki Santoki, Daisuke Morita, Ryuta Masaki, Takahiko Sugihara, Tsuyoshi Wakiyama, Kazutoshi Matsumoto, Akira Yoda, Taro Inada, Hiroshi Yokota, Takashi Kawasaki
  • Patent number: 10186693
    Abstract: 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: Grant
    Filed: March 31, 2015
    Date of Patent: January 22, 2019
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Azusa Matsuo, Yoshiaki Nitta, Takamitsu Saito, Ami Oume, Takehiro Maeda
  • Patent number: 10181601
    Abstract: 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: Grant
    Filed: August 17, 2017
    Date of Patent: January 15, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Hironobu Tsuji, Yasuo Kubota, Hiroaki Kawamura, Eiichiro Tamaki, Miyuki Tabayashi
  • Patent number: 10177398
    Abstract: 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: Grant
    Filed: November 23, 2010
    Date of Patent: January 8, 2019
    Assignee: EOCELL LTD
    Inventors: Jun Li, Deepak Srivastava, Sang Yang
  • Patent number: 10170758
    Abstract: 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: Grant
    Filed: May 28, 2014
    Date of Patent: January 1, 2019
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Stefanie Rudenko, Manuel Pfanzelt, Andreas Laumann
  • Patent number: 10170762
    Abstract: 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: Grant
    Filed: December 11, 2012
    Date of Patent: January 1, 2019
    Assignee: Zenlabs Energy, Inc.
    Inventors: Haixia Deng, Subramanian Venkatachalam, Sujeet Kumar, Herman A. Lopez
  • Patent number: 10164256
    Abstract: 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: Grant
    Filed: March 14, 2017
    Date of Patent: December 25, 2018
    Assignee: 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