And Acyclic Carbonate Or Acyclic Carboxylic Acid Ester Solvent Patents (Class 429/332)
  • Patent number: 10998544
    Abstract: A negative electrode active material containing a negative electrode active material particle; the negative electrode active material particle including a silicon compound particle containing a silicon compound (SiOx: 0.5?x?1.6), wherein the silicon compound particle contains a Li compound, and the negative electrode active material particle contains an Al element and an Na element as constituent elements, with a mass ratio MNa/MAl of the Al element and the Na element satisfying the following Formula 1. This provides a negative electrode active material that is capable of stabilizing slurry that is produced in production of a negative electrode for a secondary battery, and improving initial charge-discharge characteristics and cycle performance when it is used as a negative electrode active material for a secondary battery. 0.
    Type: Grant
    Filed: August 16, 2017
    Date of Patent: May 4, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu Hirose, Kohta Takahashi, Takumi Matsuno, Reiko Sakai
  • Patent number: 10991980
    Abstract: The secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution including at least one kind of cyclic nitrogen compounds and at least one of a first nitrile compound and a second nitrile compound.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: April 27, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takumi Hiasa, Toru Odani, Kazumasa Takeshi
  • Patent number: 10978739
    Abstract: Electrolytes and electrolyte additives for energy storage devices comprising a carboxylic ether, a carboxylic acid based salt, or an acrylate electrolyte are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from carboxylic ethers, carboxylic acid based salts, and acrylates.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: April 13, 2021
    Assignee: Enevate Corporation
    Inventors: Liwen Ji, Benjamin Yong Park, Ian Browne, Tracy Ho, Sung Won Choi
  • Patent number: 10862168
    Abstract: A system and method for stabilizing electrodes against dissolution and/or hydrolysis including use of cosolvents in liquid electrolyte batteries for three purposes: the extension of the calendar and cycle life time of electrodes that are partially soluble in liquid electrolytes, the purpose of limiting the rate of electrolysis of water into hydrogen and oxygen as a side reaction during battery operation, and for the purpose of cost reduction.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: December 8, 2020
    Assignee: Natron Energy, Inc.
    Inventors: Colin Deane Wessells, Shahrokh Motallebi
  • Patent number: 10847841
    Abstract: An electrolyte additive for a lithium battery comprising a sulfone compound represented by Formula 1: wherein, in Formula 1, R1 is a halogen-substituted or unsubstituted C1-C5 alkyl group, a halogen-substituted or unsubstituted C4-C10 cycloalkyl group, a halogen-substituted or unsubstituted C5-C10 aryl group, or a halogen-substituted or unsubstituted C2-C10 heteroaryl group, and R2 is a halogen-substituted or unsubstituted C2-C10 alkenyl group.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: November 24, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Insun Park, Myongchun Koh, Dongyoung Kim, Eunha Park, Yoonsok Kang, Jinah Seo
  • Patent number: 10784530
    Abstract: Improved battery systems have been developed for lithium-ion based batteries. The improved systems include a nonaqueous electrolyte including one or more lithium salts, one or more nonaqueous solvents, and an additive or additive mixture comprising one or more operative additives selected from a group of disclosed compounds, including 3-aryl substituted 1,4,2-dioxazol-5-ones and 3-phenyl-1,3,2,4-dioxathiazole 2-oxide.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: September 22, 2020
    Assignee: Tesla, Inc.
    Inventors: Jeffery Raymond Dahn, Toren Hynes, David Scott Hall
  • Patent number: 10777849
    Abstract: The present invention relates to a non-aqueous electrolyte solution including a non-aqueous organic solvent, a lithium salt, and an oligomer represented by Formula 1 described in the present specification, and a lithium secondary battery including the same. Since the non-aqueous electrolyte solution according to an embodiment of the present invention may reduce gas, such as CO or CO2, generated in the secondary battery during high-temperature storage, it may further improve high-temperature stability of the lithium secondary battery.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: September 15, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jung Hoon Lee, Kyoung Ho Ahn, Chul Haeng Lee, Jeong Woo Oh
  • Patent number: 10763499
    Abstract: Provided is a novel positive electrode active material capable of suppressing resistance and improving rate characteristics and cycle characteristics while enhancing lithium ionic conductivity, wherein the surface of particles composed of a spinel-type composite oxide containing Li, Mn, O, and two or more other elements is coated with a lithium ion conductive oxide such as LiNbO3. Proposed is a positive electrode active material for an all-solid-type lithium secondary battery, wherein the surface of present core particles composed of a spinel-type composite oxide containing Li, Mn, O, and two or more other elements is coated with an amorphous compound containing Li, A (A represents one or more elements selected from the group consisting of Ti, Zr, Ta, Nb, and Al), and O; and the molar ratio (Li/A) of Li relative to the A element in the surface, as obtained by XPS, is 1.0 to 3.5.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: September 1, 2020
    Assignee: Mitsui Mining & Smelting Co., Ltd.
    Inventors: Toshikazu Matsuyama, Tetsuya Mitsumoto, Hitohiko Ide, Daisuke Washida
  • Patent number: 10734680
    Abstract: A task is to provide a non-aqueous electrolytic solution exhibiting excellent cycle capacity maintaining ratio and excellent low-temperature resistance characteristics and a non-aqueous electrolyte secondary battery using the same. An object of the present invention is to provide a non-aqueous electrolytic solution which improves the cycle capacity maintaining ratio and low-temperature resistance characteristics, and a non-aqueous electrolyte secondary battery using the non-aqueous electrolytic solution. The present invention is a non-aqueous electrolytic solution comprising an electrolyte and a non-aqueous solvent dissolving therein the electrolyte, wherein the non-aqueous electrolytic solution contains a compound represented by formula (1), and a non-aqueous electrolyte secondary battery comprising the non-aqueous electrolytic solution.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: August 4, 2020
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroaki Yoshida, Daisuke Kawakami, Koji Fukamizu
  • Patent number: 10707539
    Abstract: A battery is provided including an anode, a cathode and an electrolyte; wherein the electrolyte includes one or both of fluoro ethylene carbonate and difluoro ethylene carbonate in an amount of 0.5% by mass or more and 10% by mass or less, wherein the anode includes an anode active material layer provided on an anode current collector, and wherein a thickness of the anode active material layer, after charging the battery, is 58 um or more and 75 um or less.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: July 7, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akira Yamaguchi, Kunihiko Hayashi, Tadahiko Kubota, Hiroyuki Suzuki, Akira Ichihashi, Yuzuru Fukushima, Hironori Sato, Masaki Kuratsuka, Hideto Watanabe, Kimio Tajima, Masahiro Miyamoto
  • Patent number: 10622678
    Abstract: In terms of a lithium ion secondary battery using, in a positive electrode, a lithium transition metal composite oxide containing an over-stoichiometric amount of lithium, a lithium ion secondary battery in which an amount of a gas generated during charge/discharge cycles is reduced and capacity retention is improved is provided. The lithium ion secondary battery includes a positive electrode containing a lithium transition metal composite oxide containing Fe and containing an over-stoichiometric amount of lithium, and a nonaqueous electrolyte solution, and the nonaqueous electrolyte solution contains a nonaqueous organic solvent, an electrolyte, and lithium difluorophosphate.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: April 14, 2020
    Assignee: NEC CORPORATION
    Inventors: Katsumi Maeda, Noriyuki Tamura, Sadanori Hattori
  • Patent number: 10622677
    Abstract: A lithium secondary battery including a positive electrode including a positive active material represented by Formula 1; a negative electrode; and an electrolyte disposed between the positive electrode and the negative electrode, the electrolyte including a lithium salt; a nonaqueous solvent; and a cyclic compound represented by Formula 2, wherein an amount of the cyclic compound is less than about 2 percent by weight (wt %) based on a total weight of the electrolyte, wherein, in Formulae 1 and 2, 0.9?x?1.2, 0.7?y?0.95, 0?z<0.2, M includes Al, Mg, Mn, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Bi, or a combination thereof, A includes a monovalent anion, a divalent anion, a trivalent anion, or a combination thereof, and R1 and R2 are each independently a substituted or unsubstituted C1-C30 alkylene group.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: April 14, 2020
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Myongchun Koh, Hosang Park, Jinah Seo, Yeonji Chung
  • Patent number: 10580589
    Abstract: A lithium ion capacitor has an electrolytic solution that contains: 100 parts by volume of a solvent containing 20 to 50 parts by volume of propylene carbonate, 10 to 35 parts by volume of dimethyl carbonate, and 15 to 70 parts by volume of ethyl methyl carbonate; and lithium bis(fluorosulfonyl)imide, as an electrolyte. The lithium ion capacitor can maintain its initial high capacitance and low internal resistance, while also undergoing minimal characteristics changes in a low-temperature environment, even after exposure to a high-temperature, high-voltage environment.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 3, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Takeo Tsuzuki
  • Patent number: 10559847
    Abstract: A solid-state conductor with sodium oxoferrate structure is disclosed. The conductor may be used in battery applications where it is preferable to avoid the use of a liquid electrolyte. The conductor may be produced from an initial NaFeO2 chemical composition. So as to add defects and allow for sodium ion mobility, Fe(IV), Si, Sn, Ti, Zr, V, P, or S can be added. For example, (1?x)(NaFeO2)+x(XO2) can be melted with the corresponding oxide XO2, where X is Fe(IV), Si, Sn, Ti, Zr, V, P, or S, and x is between 0.1 and 0.5. These dopants generally preserve the crystallographic structure while decreasing the ion mobility barrier.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: February 11, 2020
    Assignee: International Business Machines Corporation
    Inventors: Teodoro Laino, Valery Weber
  • Patent number: 10483526
    Abstract: According to one embodiment, there is provided a positive electrode active material containing positive electrode active material particles. The positive electrode active material particles have an olivine structure. The positive electrode active material particles are represented by LiMn1?x?yFexMyPO4 (0<x?0.5, 0?y?0.2, and M is at least one element selected from the group consisting of Mg, Ni, Co, Sn, and Nb) and satisfy, Formula (1) below. ?<???(1), wherein ? is a ratio of Fe in LiMn1???yFe?MyPO4, and ? is a ratio of Fe in LiMn1???yFe?MyPO4.
    Type: Grant
    Filed: March 7, 2014
    Date of Patent: November 19, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Norio Takami, Keigo Hoshina, Hiroki Inagaki
  • Patent number: 10476104
    Abstract: Provided are a gel polymer electrolyte including a polymer network, and an electrolyte solution impregnated in the polymer network, wherein the polymer network is formed by combining a first oligomer, which includes unit A derived from a monomer including at least one copolymerizable acrylate or acrylic acid, unit C including urethane, and unit E including alkylene group substituted with one or more fluorine, in a three-dimensional structure, and a lithium secondary battery including the gel polymer electrolyte.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: November 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kyoung Ho Ahn, Jeong Woo Oh, Chul Haeng Lee, Yi Jin Jung, Sol Ji Park
  • Patent number: 10439226
    Abstract: A nonaqueous electrolyte battery comprising: a positive electrode including a positive electrode active material layer containing a lithium iron manganese phosphate composite having an olivine structure; and a negative electrode including a negative electrode active material layer containing a titanium-containing metal oxide composite, wherein an atomic concentration of manganese is 1 atm % or more and 15 atm % or less in a region from a surface to a depth D of the negative electrode active material layer and the depth D is more than 0 nm and 10 nm or less.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: October 8, 2019
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasunobu Yamashita, Keigo Hoshina, Yoshiyuki Isozaki, Norio Takami
  • Patent number: 10439251
    Abstract: Disclosed 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 disclosed herein are lithium-stuffed garnet thin films having fine grains therein. Also disclosed herein are 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 electrochemical devices which incorporate these garnet catholytes, electrolytes and/or anolytes. Also disclosed herein are methods for preparing 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. Also disclosed herein are sintering techniques, e.g.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: October 8, 2019
    Assignee: QuantumScape Corporation
    Inventors: Tim Holme, Niall Donnelly, Sriram Iyer, Adrian Winoto, Mohit Singh, Will Hudson, Dong Hee Anna Choi, Oleh Karpenko, Kian Kerman
  • Patent number: 10424794
    Abstract: To provide a material suitable for a nonaqueous electrolyte battery having high-temperature durability. An ionic complex of the present invention is represented by any of the following formulae (1) to (3). For example, in the formula (1), A is a metal ion, a proton, or an onium ion; M is any of groups 13 to 15 elements. R1 represents a C1 to C10 hydrocarbon group which may have a ring, a heteroatom, or a halogen atom, or —N(R2)—. R2 at this time represents hydrogen atom, alkali metal atom, a C1 to C10 hydrocarbon group which may have a ring, a heteroatom, or a halogen atom. R2 can also have a branched chain or a ring structure when the number of carbon atoms is 3 or more. Y is carbon atom or sulfur atom. a, o, n, p, q, and r are each predetermined integers.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 24, 2019
    Assignee: Central Glass Co., Ltd.
    Inventors: Mikihiro Takahashi, Takayoshi Morinaka, Masutaka Shinmen, Kenta Yamamoto, Wataru Kawabata, Makoto Kubo, Masataka Fujimoto, Hiroki Matsuzaki, Shoichi Tsujioka
  • Patent number: 10418667
    Abstract: The present invention relates to a non-aqueous electrolyte secondary battery (30) which includes: a positive electrode (1); a negative electrode (2); a non-aqueous electrolyte containing a non-aqueous solvent; an outer package (5, 7, 19) receiving the positive electrode (1), the negative electrode (2), and the non-aqueous electrolyte; and a current interrupt valve (14) which interrupts a current in response to an increase in pressure inside the outer package (5, 7, 19). The positive electrode (1) contains a carbonate compound, the non-aqueous solvent contains a fluorinated cyclic carbonate and a fluorinated chain ester, and the total content of the fluorinated cyclic carbonate and the fluorinated chain ester is with respect to the total volume of the non-aqueous solvent, 50 percent by volume or more.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: September 17, 2019
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Naoya Morisawa, Takanobu Chiga, Takashi Takeuchi
  • Patent number: 10411299
    Abstract: Electrolytes are described with additives that provide good shelf life with improved cycling stability properties. The electrolytes can provide appropriate high voltage stability for high capacity positive electrode active materials. The core electrolyte generally can comprise from about 1.1M to about 2.5M lithium electrolyte salt and a solvent that consists essentially of fluoroethylene carbonate and/or ethylene carbonate, dimethyl carbonate and optionally no more than about 40 volume percent methyl ethyl carbonate, and wherein the lithium electrolyte salt is selected from the group consisting of LiPF6, LiBF4 and combinations thereof. Desirable stabilizing additives include, for example, dimethyl methylphosphonate, thiophene or thiophene derivatives, and/or LiF with an anion complexing agent.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: September 10, 2019
    Assignee: Zenlabs Energy, Inc.
    Inventors: Swapnil J. Dalavi, Shabab Amiruddin, Bing Li
  • Patent number: 10294189
    Abstract: The invention provides a method for producing halogenated carbonates, the method comprising reacting a halogenated alcohol or diol with a solid source of carbonyl moiety as a base in an ether.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: May 21, 2019
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Trevor L. Dzwiniel, Krzysztof Pupek, Gregory K. Krumdick
  • Patent number: 10170790
    Abstract: A solid-state conductor with sodium oxoferrate structure is disclosed. The conductor may be used in battery applications where it is preferable to avoid the use of a liquid electrolyte. The conductor may be produced from an initial NaFeO2 chemical composition. So as to add defects and allow for sodium ion mobility, Fe(IV), Si, Sn, Ti, Zr, V, P, or S can be added. For example, (1?x)(NaFeO2)+x(XO2) can be melted with the corresponding oxide XO2, where X is Fe(IV), Si, Sn, Ti, Zr, V, P, or S, and x is between 0.1 and 0.5. These dopants generally preserve the crystallographic structure while decreasing the ion mobility barrier.
    Type: Grant
    Filed: April 5, 2017
    Date of Patent: January 1, 2019
    Assignee: International Business Machines Corporation
    Inventors: Teodoro Laino, Valery Weber
  • Patent number: 10153512
    Abstract: An electrolyte solution contains a non-aqueous solvent and an alkali metal salt dissolved in the non-aqueous solvent. The non-aqueous solvent contains a linear carboxylate represented by the following formula: where R1 and R2 independently represent an aromatic group, an unsaturated aliphatic group, or a saturated aliphatic group. A battery includes the electrolyte solution, a positive electrode containing a positive electrode active material that has a property of occluding and releasing an alkali metal ion, and a negative electrode containing an alkali metal or a negative electrode active material that has a property of occluding and releasing the alkali metal ion.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: December 11, 2018
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Takayuki Nakatsutsumi, Mayumi Maenishi, Nobuhiko Hojo
  • Patent number: 10122047
    Abstract: A nonaqueous electrolyte secondary battery proposed herein is configured such that a positive-electrode active material layer includes graphite particles and a gas generant. Further, an electrolyte solution includes an ? solute. Here, a relationship between an upper limit electric potential X of a positive electrode in a predetermined normal use area, an electric potential Y at which an amount of the ? solute in the electrolyte solution begins to decrease due to the graphite particles, and an electric potential Z at which the gas generant begins to generate gas is X<Y<Z.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 6, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yutaka Oyama
  • Patent number: 10122046
    Abstract: The present invention provides an electrolyte composition for a lithium-ion battery comprising LiPF6 in a liquid carrier comprising a carbonate ester and an unsaturated organoboron compound comprising two or three unsaturated hydrocarbon groups, each unsaturated hydrocarbon group being covalently bonded to a boron atom. The unsaturated hydrocarbon groups are independently selected from vinyl, allyl, propargyl, substituted vinyl, substituted allyl, and substituted propargyl. The substituents of the substituted vinyl, allyl and propargyl groups independently comprise one or more of alkyl and phenyl. The alkyl and phenyl groups optionally can bear one or more substituent selected from halogen (e.g., F), hydroxy, amino, alkoxy, and perfluoroalkoxy.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: November 6, 2018
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Daniel Abraham, Ye Zhu
  • Patent number: 10074874
    Abstract: A lithium ion battery that has a 5 V stabilized manganese cathode and a nonaqueous electrolyte comprising a phosphate additive is described. The lithium ion battery operates with a high voltage cathode (i.e. up to about 5 V) and has improved cycling performance at high temperature.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: September 11, 2018
    Assignee: Solvay SA
    Inventors: Charles J. Dubois, Viacheslav A. Petrov, Mark Gerrit Roelofs
  • Patent number: 10069165
    Abstract: An electrolyte composition for a lithium-ion battery, a lithium-ion battery, and also the use of a fluorine-containing cyclic carbonate component and lithium nitrate for improving the cycle stability and/or for increasing the performance of a lithium-ion battery.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: September 4, 2018
    Assignee: Volkswagen Aktiengesellschaft
    Inventors: Janis Doelle, Mirko Herrmann
  • Patent number: 10050310
    Abstract: A non-aqueous electrolytic solution of the present invention includes: a solvent component including a glyme solvent and a phosphazene solvent; and an alkali metal salt composed of an alkali metal cation and an anion, the alkali metal salt being dissolved in the solvent component. The phosphazene solvent is a cyclic phosphazene compound represented by the formula (1). where X1 to X6 each independently represent a halogen atom or OR1, R1 is a substituted or unsubstituted aromatic group or a substituted or unsubstituted saturated aliphatic group, the aromatic group and the saturated aliphatic group each optionally contain a halogen atom, a nitrogen atom, an oxygen atom, a sulfur atom, or a silicon atom, and the saturated aliphatic group is linear or cyclic.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: August 14, 2018
    Assignee: Panasonic Corporation
    Inventors: Hirotetsu Suzuki, Nobuhiko Hojo, Takayuki Nakatsutsumi
  • Patent number: 9979013
    Abstract: An electrode material includes Fe-containing olivine-structured LixAyDzPO4 (wherein A represents one or more elements selected from the group consisting of Co, Mn, Ni, Cu, and Cr; D represents one or more elements selected from the group consisting of Mg, Ca, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, Sc, Y, and rare earth elements; 0<x?2; 0<y?1; and 0?z?1.5) particles that are coated with a carbon coating film, in which an abundance of Fe is 0.01 to 0.1 mol with respect to 1 mol of LixAyDzPO4, and an abundance ratio (Fe/(Fe+A+D)) of Fe on surfaces of the LixAyDzPO4 particles is 0.02 to 0.25.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: May 22, 2018
    Assignee: SUMITOMO OSAKA CEMENT CO., LTD.
    Inventors: Kenta Ooishi, Takao Kitagawa, Kouji Oono, Satoru Oshitari
  • Patent number: 9979020
    Abstract: According to one embodiment, a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte is provided. The positive electrode includes an active material including Li1?xMn2?y?zAlyMzO4 (?0.1?x?1, 0.20?y?0.35, 0?z?0.1, M is at least one metal selected from Mg, Ca, Ti, V, Cr, Fe, Co, Ni, Cu, Zn, Zr, Nb, Mo, and Sn). The negative electrode includes an active material including a first oxide represented by Li4+aTi5O12 (?0.5?a?3) and a second oxide of at least one element selected from Al, Co, Cr, Cu, Fe, Mg, Ni, Zn, and Zr. The second oxide is included in an amount of from 300 ppm to 5000 ppm relative to a weight of the first oxide.
    Type: Grant
    Filed: February 25, 2016
    Date of Patent: May 22, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hidesato Saruwatari, Hikaru Yoshikawa, Hiromichi Kuriyama, Yasuaki Murashi, Naoki Nishio, Dai Yamamoto
  • Patent number: 9979049
    Abstract: Provided are an electrolyte for a high-voltage lithium secondary battery and a high-voltage lithium secondary battery containing the same, and more particularly, an electrolyte for a high-voltage lithium secondary battery which may not be oxidized and decomposed at the time of being kept at a high voltage and a high temperature to prevent swelling of a battery through suppression of gas generation, thereby having excellent high-temperature storage characteristics and excellent discharge characteristics at a low temperature while decreasing a thickness increase rate of the battery, and a high-voltage lithium secondary battery containing the same.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: May 22, 2018
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Jin Sung Kim, Seung Yon Oh, Jong Ho Lim, Jin Su Ham
  • Patent number: 9947923
    Abstract: The nonaqueous electrolyte battery according to one embodiment includes a positive electrode and a negative electrode. The positive electrode contains a positive electrode active material containing manganese-containing composite oxide. The negative electrode contains a negative electrode active material selected from the group consisting of titanium oxide and titanium-containing composite oxide. A ratio p/n of a capacity p per unit area of the positive electrode to a capacity n per unit area of the negative electrode is in the range of 0.8 or more and 1 or less.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: April 17, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiromichi Kuriyama, Hikaru Yoshikawa, Hidesato Saruwatari, Yasuaki Murashi, Dai Yamamoto, Naoki Nishio
  • Patent number: 9899663
    Abstract: Disclosed is a lithium secondary battery including: an electrode assembly including a cathode including a cathode mixture layer formed on a cathode current collector, an anode including an anode mixture layer formed on an anode current collector, and a separator disposed between the cathode and the anode; and an electrolyte, wherein the anode includes lithium titanium oxide (LTO) as an anode active material, and four planes of the cathode mixture layer have the same or greater length than four planes of the anode mixture layer and thus the cathode mixture layer has the same or greater area than the anode mixture layer.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: February 20, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Soo Hyun Lim, Jae Hyun Lee, Jihyun Kim
  • Patent number: 9887407
    Abstract: The present disclosure refers to a secondary battery which comprises a high-voltage cathode active material and a separator whose pores are not obstructed even though being used together with the high-voltage cathode active material, thereby preventing the obstruction of pores in the separator and the formation of a dendrite in the anode and eventually providing good battery life performance.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: February 6, 2018
    Assignees: LG Chem, Ltd., TORAY INDUSTRIES, INC.
    Inventors: Sung-Hoon Yu, Jung-Don Suk, Seok-Koo Kim, Doo-Kyung Yang, Yoo-Sun Kang, Kyung-Mi Lee, Jin-Hyun Park
  • Patent number: 9871271
    Abstract: The present invention provides non-aqueous electrolyte solution for a lithium secondary battery, comprising a pyrimidine-based compound, a non-fluorinated solvent and a fluorinated solvent; and a lithium secondary battery using the same.
    Type: Grant
    Filed: May 6, 2013
    Date of Patent: January 16, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Hoon Yu, Doo Kyung Yang, Min-Jung Jou, Yoo-Seok Kim, Yoo-Sun Kang
  • Patent number: 9831523
    Abstract: The present invention provides non-aqueous electrolyte solution for a lithium secondary battery, comprising fluoroethylene carbonate and a pyrimidine-based compound; and a lithium secondary battery using the same.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: November 28, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Sung-Hoon Yu, Doo-Kyung Yang, Min-Jung Jou, Yoo-Seok Kim, Yoo-Sun Kang
  • Patent number: 9825293
    Abstract: Disclosed is a lithium secondary battery including an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode and an electrolyte, wherein the anode includes a lithium titanium oxide (LTO) as an anode active material, and the lithium secondary battery has a charge cut-off voltage of 3.3 to 4 V and, when the charge cut-off voltage is reached, the anode has a potential of 0.75 to 1.545 V within a range within which a potential of the cathode does not exceed 4.95 V.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: November 21, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Soo Hyun Lim, Jae Hyun Lee, Jihyun Kim
  • Patent number: 9825327
    Abstract: A non-aqueous electrolyte includes (i) an inhibitor against a reaction between an anode and a linear ester; (ii) a mixed organic solvent containing cyclic carbonate and the linear ester; and (iii) an electrolyte salt, wherein the inhibitor is any one compound or a mixture of at least two compounds selected from the group consisting of cyclic carbonate with a vinyl group, fluorinated ethylene carbonate, vinylene carbonate, cyclic acid anhydride, a compound having a cyclic S?O group and an acrylate-based compound. Also, an electrochemical device includes a cathode, an anode and the above non-aqueous electrolyte.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: November 21, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jong-Ho Jeon, Jeong-Ju Cho, Ho-Chun Lee
  • Patent number: 9780360
    Abstract: Provided is a cathode mixture which can have both ion conductivity and electron conductivity and with which a solid battery having an excellent output characteristic can be obtained. The cathode mixture includes a plurality of cathode active material particles, a fibrous electroconductive material, a particulate electroconductive material, and a solid electrolyte, wherein setting the total number of the plurality of cathode active material particles as 100%, the number of the cathode active material particles in contact with the fibrous electroconductive material via the particulate electroconductive material is 40% or more.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: October 3, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Satoshi Mizutani
  • Patent number: 9761912
    Abstract: A battery, particularly a lithium-metal battery or a lithium-ion battery, having at least one galvanic cell surrounded by a cell housing. To increase the safety of the battery and to close up again a cell opened by a safety device or by a leakage, the inner chamber of the cell housing of the at least one cell includes a first chemical component, a chamber bordering on at least one section of the outer side of the housing including a second chemical component; a solid reaction product being developable by the chemical reaction of the first and second chemical components. The first component is containable in the electrolyte of the cell and the second component in a cooling and/or tempering arrangement. Also described is a cooling and/or tempering arrangement based on it, and an electrolyte, an electrolytic liquid, a safety system, a method and a mobile or stationary system.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: September 12, 2017
    Assignee: Robert Bosch GmbH
    Inventors: Martin Tenzer, Jens Grimminger, Jean Fanous, Marcus Wegner
  • Patent number: 9728805
    Abstract: Disclosed are a nonaqueous electrolyte for a lithium secondary battery containing a hetero polycyclic compound and a lithium secondary battery using the same.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: August 8, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung-Hoon Yu, Doo Kyung Yang, Jong-Ho Jeon, Min-Jung Jou
  • Patent number: 9660268
    Abstract: An alkali-ion battery is provided with a transition metal cyanometallate (TMCM) sheet cathode and a non-alkaline metal anode. The fabrication method mixes TMCM powders, conductive additives, and a polytetrafluoroethylene binder with a solution containing water, forming a wet paste. The wet paste is formed into a free-standing sheet of cathode active material, which is laminated to a cathode current collector, forming a cathode electrode. The free-standing sheet of cathode active material has a thickness typically in the range of 100 microns to 2 millimeters. The cathode electrode is assembled with a non-alkaline metal anode electrode and an ion-permeable membrane interposed between the cathode electrode and anode electrode, forming an assembly. The assembly is dried at a temperature of greater than 100 degrees C. The dried assembly is then inserted into a container (case) and electrolyte is added. Thick anodes made from free-standing sheets of active material can be similarly formed.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: May 23, 2017
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Jie Song, Yuhao Lu, Xin Zhao
  • Patent number: 9614253
    Abstract: Provided is a non-aqueous electrolyte solution including a non-aqueous organic solvent, an imide-based lithium salt, and at least one additive selected from the group consisting of lithium difluoro bis(oxalato)phosphate (LiDFOP), (trimethylsilyl)propyl phosphate (TMSPa), 1,3-propene sultone (PRS), and ethylene sulfate (ESa), as an electrolyte solution additive. According to the electrolyte solution additive for a lithium secondary battery of the present invention, the electrolyte solution additive may improve output characteristics at high and low temperatures and may prevent a swelling phenomenon by suppressing the decomposition of PF6? on the surface of a cathode, which may occur during a high-temperature cycle of a lithium secondary battery including the electrolyte solution additive, and preventing an oxidation reaction of an electrolyte solution.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: April 4, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Gwang Yeon Kim, Chul Haeng Lee, Doo Kyung Yang, Young Min Lim, Shul Kee Kim, Yu Ha An, Jin Hyun Park
  • Patent number: 9608265
    Abstract: Disclosed are a precursor of a positive active material for a rechargeable lithium battery and a preparation method thereof, and a positive active material and a rechargeable lithium battery including the same, and specifically a precursor for a rechargeable lithium battery is represented by the following Chemical Formula 1, wherein a manganese ion concentration deviation in the precursor is within 3 wt %. NixCoyMn1?x?y?zMz(OH)2??[Chemical Formula 1] (0<x<1, 0?y<1, 0.5?1?x?y?z, 0?z<1, and M is at least one kind of metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: March 28, 2017
    Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
    Inventors: Jun Ho Song, Young Jun Kim, Jae-Hun Kim
  • Patent number: 9601778
    Abstract: An electrode active material has, as a main component, a mixture of an organic compound containing a rubeanic acid and cyanomethanesulfonylamide. The rubeanic acid is represented by the following general formula: In the formula, n indicates an integer between 1 and 20, and R1-R4 indicate hydrogen atoms, halogen atoms, or a prescribed substituent group such as a hydroxide group, a 1-3C alkyl group, an amino group, a phenyl group, a cyclohexyl group, or a sulfo group.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: March 21, 2017
    Assignees: MURATA MANUFACTURING CO., LTD., HONDA GIKEN KOGYO KABUSHIKI KAISHA
    Inventors: Masaharu Sato, Tomoaki Onoue, Hidehisa Mokudai, Toru Sukigara
  • Patent number: 9593016
    Abstract: A difluorophosphate effective as an additive for a nonaqueous electrolyte for secondary battery is produced by a simple method from inexpensive common materials. The difluorophosphate is produced by reacting lithium hexafluorophosphate with a carbonate in a nonaqueous solvent. The liquid reaction mixture resulting from this reaction is supplied for providing the difluorophosphate in a nonaqueous electrolyte comprising a nonaqueous solvent which contains at least a hexafluorophosphate as an electrolyte lithium salt and further contains a difluorophosphate. Also provided is a nonaqueous-electrolyte secondary battery employing this nonaqueous electrolyte.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: March 14, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Ryoichi Kato, Hirofumi Suzuki, Jun Sasahara, Hitoshi Suzuki
  • Patent number: 9595738
    Abstract: Disclosed is an electrolyte for lithium secondary batteries including a lithium salt and a non-aqueous solvent, in which a silane based material is included in an amount of 0.1 to 20 wt % based on the total weight of the electrolyte, and a lithium secondary battery including the same.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: March 14, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Yourim Yoon, Jong Mo Jung, Jonghyun Chae, Chul Haeng Lee, Geun Chang Chung, Young Cheol Choi, Young Geun Choi, Seung Jae Yoon
  • Patent number: 9590267
    Abstract: Disclosed are a non-aqueous electrolyte for a rechargeable lithium battery and a rechargeable lithium battery including the non-aqueous electrolyte, and the non-aqueous electrolyte for a rechargeable lithium battery includes a lithium salt; a non-aqueous organic solvent; and trialkylsilyl borate as an additive, wherein the non-aqueous organic solvent may include a solvent having a low melting point of less than or equal to about ?50° C. and ionic conductivity of greater than or equal to about 6 mS/cm at 25° C.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 7, 2017
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Na-Rae Park, Jin-Hyunk Lim, Mi-Hyeun Oh
  • Patent number: 9502734
    Abstract: Various embodiments are directed to flexible battery structures comprising a flexible hinge region. For example, a flexible battery structure may comprise a plurality of battery layers. A first portion of the layers may be continuous across the hinge region and one or more cell regions. A second portion of the layers may be discontinuous at the hinge region.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: November 22, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: James Robert Lim, Yuting Yeh, Erik Avy Vaknine, David Wang