Plural Organic Solvents (i.e., Solvent Mixture) Patents (Class 429/326)
  • Patent number: 10530016
    Abstract: An electrolyte for a lithium-ion battery and a lithium-ion battery. The electrolyte for a lithium-ion battery comprises a non-aqueous organic solvent, a lithium salt, and an electrolyte additive. The additive is selected from compounds of formula 1, wherein R1 is selected from unsaturated alkyls having three to six carbon atoms, and R2 is selected from alkylenes having two to five carbon atoms. Because the molecular structure of the additive comprises both unsaturated carbon-carbon bonds and cyanos, polymerization can occur on an electrode surface to form a compound containing multiple cyanos. The compound can be complexed with metal ions on a surface of a cathode material, thereby inhibiting electrolyte decomposition on an electrode surface to improve high-temperature storage and cyclability of a battery.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: January 7, 2020
    Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
    Inventors: Qiao Shi, Qun Chen, Shiguang Hu, Qi Huang, Xue Zhou
  • Patent number: 10472571
    Abstract: Low flammability and nonflammable localized superconcentrated electrolytes (LSEs) for stable operation of electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, are disclosed. Electrochemical devices, such as rechargeable batteries, supercapacitors, and sensors, including the low flammability and nonflammable LSEs are also disclosed. The low flammability and nonflammable LSEs include an active salt, a solvent comprising a flame retardant compound, wherein the active salt is soluble in the solvent, and a diluent in which the active salt is insoluble or poorly soluble. In certain embodiments, such as when the solvent and diluent are immiscible, the LSE further includes a bridge solvent.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: November 12, 2019
    Assignee: Battelle Memorial Institute
    Inventors: Ji-Guang Zhang, Shuru Chen, Wu Xu
  • Patent number: 10411300
    Abstract: A secondary battery includes a cathode, an anode, and an electrolytic solution. The electrolytic solution contains an electrolytic solution material together with a nonaqueous solvent and an electrolyte salt. The electrolytic solution material includes one or more of first unsaturated compounds and second unsaturated compounds represented, and one or more of phenol-type compounds, phosphorus-containing compounds, and sulfur-containing compounds.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: September 10, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masayuki Ihara, Shigeru Fujita
  • Patent number: 10367229
    Abstract: A phosphoranimine compound comprising a cationic portion bonded to a nitrogen atom of the phosphoranimine compound, a phosphorus atom bonded to the nitrogen atom, pendant groups bonded to the phosphorus atom, and a counterion. An electrolyte solution comprising at least one phosphoranimine compound is also disclosed, as is an energy storage device including the electrolyte solution.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: July 30, 2019
    Assignee: Battelle Energy Alliance, LLC
    Inventors: John R Klaehn, Eric J Dufek, Joshua S McNally
  • Patent number: 10290902
    Abstract: An electrolyte for a lithium metal battery, the electrolyte including: a solvated ionic liquid including a glyme solvent and a lithium salt, wherein an amount of the lithium salt is about 3 moles per liter or greater, and wherein a lithium metal battery including the electrolyte has an initial solution resistance of less than about 1 ohm and a bulk resistance of less than about 10 ohms. A lithium metal battery includes: a negative electrode including a lithium metal or a lithium metal alloy; a positive electrode; and the electrolyte. A method of manufacturing the lithium metal battery includes: mixing a glyme solvent and a lithium salt to obtain an electrolyte precursor; disposing the electrolyte precursor into the lithium metal battery; and performing hermetic immersion of the electrolyte precursor in the lithium metal battery to form the electrolyte.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: May 14, 2019
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Wonseok Chang, Toshinori Sugimoto, Yonggun Lee, Hongsoo Choi, Hyorang Kang
  • Patent number: 10276891
    Abstract: The present disclosure concerns an electrolyte suitable for calcium-based secondary cells, comprising calcium ions and an electrolyte medium, wherein the electrolyte is not solid at standard conditions and wherein the electrolyte medium includes at least two distinct non-aqueous solvents.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: April 30, 2019
    Assignees: TOYOTA MOTOR EUROPE, CONSEJO SUPERIOR DE INVESTIGACIONES CIENTIFICAS
    Inventors: Fanny Barde, Rosa Palacin, Alexandre Ponrouch
  • Patent number: 10270098
    Abstract: The present invention relates to a positive electrode active material for a lithium ion battery and, more specifically, to a positive electrode active material for a lithium ion battery, having improved initial capacitance and charging and discharging efficiency due to increased electrical conductivity or ion conductivity. The positive electrode active material for a lithium ion battery of the present invention contains lithium vanadium phosphate (Li3V2(PO4)3) and lithium zirconium phosphate (Li3Zr2(PO4)3) formed on an external surface of the lithium vanadium phosphate. The positive electrode active material for a lithium ion battery comprising lithium vanadium zirconium phosphate (Li3V2-xZrx(PO4)3) particles, which is prepared by a preparation method of the present invention, has excellent structural stability and ion conductivity as well as high capacitance.
    Type: Grant
    Filed: April 23, 2015
    Date of Patent: April 23, 2019
    Inventors: Yong-mook Kang, Seung-ho Kang, Dong-wook Han
  • Patent number: 10270097
    Abstract: An object is to reduce variation in shape of crystals that are to be formed. Solutions containing respective raw materials are made in an environment where an oxygen concentration is lower than that in air, the solutions containing the respective raw materials are mixed in an environment where an oxygen concentration is lower than that in air to form a mixture solution, and with use of the mixture solution, a composite oxide is formed by a hydrothermal method.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: April 23, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takuya Miwa, Kuniharu Nomoto, Junpei Momo
  • Patent number: 10263293
    Abstract: Provided is a method of preparing a lithium secondary battery which may simultaneously improve output characteristics and lifetime characteristics of the lithium secondary battery by preparing an electrode on which an SEI film is formed through a pretreatment process, putting an electrode assembly including the electrode in a battery case, and injecting an electrolyte thereinto.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: April 16, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Sung Hoon Yu, Yoo Sun Kang, Kyung Mi Lee
  • Patent number: 10230131
    Abstract: The present invention relates in a first aspect to a method for producing in the interior of a production equipment a dehydrated liquid mixture for use as a solvent for a conducting salt (e.g. LiPF6) wherein after cleaning the equipment with isopropyl alcohol and providing or preparing a liquid starting mixture in said interior of the production equipment both the isopropyl alcohol content in the mixture and the water content in the mixture is reduced by interaction with a zeolite molecular sieve.
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: March 12, 2019
    Assignee: Gotion Inc.
    Inventors: Agnes Voitl, Itamar Michael Malkowsky, Axel Kirste
  • Patent number: 10224567
    Abstract: The battery includes an electrolyte activating a positive electrode and a negative electrode. The electrolyte includes a plurality of salts in a solvent, one or more passivation salts in the solvent, and one or more passivation additives in the solvent. At least one of the passivation salts forms a passivation layer on the negative electrode during discharge of the battery and includes both lithium and boron. At least one of the salts is an inorganic lithium salt that excludes boron. The solvent includes one or more organic solvents. At least one of the passivation additives forms a passivation layer on the negative electrode during discharge of the battery and is not a salt. The positive electrode has one or more positive active materials that each include a lithium transition-metal oxide and the negative electrodes includes a negative active material selected from a group consisting of lithium metal and graphite.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: March 5, 2019
    Assignee: Quallion LLC
    Inventor: Sang Young Yoon
  • Patent number: 10205163
    Abstract: A battery including an anode with an anode active material layer that includes anode active material particles made of an anode active material including at least one of silicon and tin as an element. An oxide-containing film including an oxide of at least one kind selected from the group consisting of silicon, germanium and tin is formed in a region of the surface of each anode active material particle in contact with an electrolytic solution by a liquid-phase method such as a liquid-phase deposition method. The region in contact with the electrolytic solution of the surface of each anode active material particle is covered with the oxide-containing film. The thickness of the oxide-containing film is preferably within a range from 0.1 nm to 500 nm both inclusive.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: February 12, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Hiroyuki Yamaguchi, Hiroshi Horiuchi, Kenichi Kawase, Tadahiko Kubota, Hideki Nakai, Takakazu Hirose
  • Patent number: 10199677
    Abstract: Electrolytes, lithium ion cells and corresponding methods are provided, for extending the cycle life of fast charging lithium ion batteries. The electrolytes are based on fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly on ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component. Proposed electrolytes extend the cycle life by factors of two or more, as indicated by several complementary measurements.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: February 5, 2019
    Assignee: StoreDot Ltd.
    Inventors: Zohar Drach, Olga Guchok, Leonid Krasovitsky, Ekaterina Gotlib Vainshtein, Liron Amir
  • Patent number: 10177413
    Abstract: The present invention is a lithium ion secondary battery comprising a positive electrode and a non-aqueous electrolyte solution comprising a non-aqueous electrolyte solvent, wherein the positive electrode comprises a positive electrode active material having an operating potential at 4.5 V or higher versus lithium metal, the non-aqueous electrolyte solvent comprises a fluorinated phosphate ester represented by a predetermined formula and at least one selected from the group consisting of sulfone compounds represented by predetermined formulae, and the sulfone compound is included in an amount of 5 volume % or more in the non-aqueous electrolyte solvent.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: January 8, 2019
    Assignee: NEC Corporation
    Inventors: Hideaki Sasaki, Takehiro Noguchi, Yuukou Katou, Makiko Takahashi
  • Patent number: 10170793
    Abstract: A secondary battery includes: a cathode; an anode; and an electrolytic solution including a cyano compound, the cyano compound including a compound represented by R1-O—C(?O)—O—R2 (R1, R2, or both include a cyano-group-containing group), a compound represented by R3-C(?O)—O—R4 (R4 includes the cyano-group-containing group), or both.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: January 1, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Masayuki Ihara, Tadahiko Kubota
  • Patent number: 10164231
    Abstract: This invention, in some variations, provides a separator for a lithium-sulfur battery, comprising a porous substrate that is permeable to lithium ions; and a lithium-ion-conducting metal oxide layer on the substrate, wherein the metal oxide layer includes deposits of sulfur that are intentionally introduced prior to battery operation. The deposits of sulfur may be derived from treatment of the metal oxide layer with one or more sulfur-containing precursors (e.g., lithium polysulfides) prior to operation of the lithium-sulfur battery. Other variations provide a method of charging a lithium-sulfur battery that includes the disclosed separator, the charging being accomplished by continuously applying a substantially constant voltage to the lithium-sulfur battery until the battery charging current is at or below a selected current.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: December 25, 2018
    Assignee: HRL Laboratories, LLC
    Inventors: Wen Li, Ping Liu, Jocelyn Hicks-Garner
  • Patent number: 10164291
    Abstract: An electrolyte for an electrochemical storage device is disclosed. In one embodiment, the electrolyte includes a lithium salt from about 3% to about 20% by weight, a primary solvent from about 15% to about 25% by weight, wide-temperature co-solvents from about 14% to about 55% by weight, interface forming compounds from about 0.5% to about 2.0% by weight, and a flame retardant compound from about 6% to about 60% by weight. The electrolyte interacts with the positive and negative electrodes of the electrochemical storage device to provide both high performance and improved safety such that the electrolyte offers adequate ionic conductivity over the desired operating temperature range, a wide electrochemical stability window, high capacities for both the cathode and anode, low electrode-electrolyte interfacial resistance, and reduced flammability.
    Type: Grant
    Filed: May 8, 2015
    Date of Patent: December 25, 2018
    Assignee: Lynntech, Inc.
    Inventors: Christopher P. Rhodes, Matthew E. Mullings
  • Patent number: 10141567
    Abstract: There are provided a cathode active material for a lithium secondary battery, a method of preparing the same, and a lithium secondary battery containing the same. The cathode active material for a lithium secondary battery includes: a core made of a compound reversibly intercalating and deintercalating lithium; and a coating layer positioned on at least a portion of a surface of the compound, wherein the coating layer is a composite coating layer containing Li3PO4 and LiF, and further containing a lithium metal compound, a metal oxide, a metal fluoride compound, and/or a combination thereof, and the core is doped with fluorine.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: November 27, 2018
    Assignee: L&F CO., LTD.
    Inventors: Su An Choi, Ho Jun Jeong, Sang Hoon Jeon, Ji Woon Yang, Jun Ho Shin, Ji Sun An, Bong Jun Jeong
  • Patent number: 10115999
    Abstract: An all-solid-state lithium-ion secondary battery includes a cathode active material, an anode active material, a solid electrolyte between the cathode and anode active materials, and an intermediate layer between the solid electrolyte and the cathode active material. The cathode and anode active materials are able to store and release a lithium ion. The solid electrolyte has lithium ion conductivity. The intermediate layer is constituted of elements including all elements constituting the cathode active material. A lithium ion in the intermediate layer is less ionic than that in the cathode active material.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: October 30, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Satoru Ohuchi, Yuta Sugimoto, Toshiro Kume, Tomoyasu Yokoyama
  • Patent number: 10116002
    Abstract: A method of producing a sulfide-based solid electrolyte including bringing an alkali metal sulfide and a sulfur compound into contact in a mixed solvent of a hydrocarbon solvent and a polar aprotic solvent.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: October 30, 2018
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Koichi Sato, Minoru Senga, Yoshikatsu Seino
  • Patent number: 10056649
    Abstract: A non-aqueous electrolytic solution for use in a lithium secondary battery has reduced or eliminated flammability and increased capacity retention. The electrolytic solution includes a lithium salt, a carbonate, a substituted phosphazene, a fluorinated solvent such as fluorinated carbonate, fluorinated ether, and fluorinated ester, and an organic phosphate or organic phosphonate such as fluorinated alkyl phosphate, fluorinated aromatic phosphate, fluorinated alkyl phosphonate, or fluorinated aromatic phosphonate.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: August 21, 2018
    Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
    Inventors: Wentao Li, Martin W. Payne
  • Patent number: 10050305
    Abstract: In an aspect, an electrolyte for a lithium secondary battery that includes a compound represented by Formula 1, a nonaqueous organic solvent, and a lithium salt, and a lithium secondary battery including the electrolyte are provided.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: August 14, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Moon-Sung Kim, Duck-Hyun Kim, E-Rang Cho, Jeong-Hye Lee
  • Patent number: 10044016
    Abstract: A storage battery includes a negative electrode including, as an active material, at least one of a metal capable of forming a dendrite and a metal compound thereof, a positive electrode, a separator, and an electrolyte containing an additive. In the storage battery, a concentration of the additive in the electrolyte in a region on a side of the negative electrode defined by the separator is higher than a concentration of the additive in a region on a side of the positive electrode.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: August 7, 2018
    Assignees: GS Yuasa International Ltd., KYOTO UNIVERSITY
    Inventors: Tadashi Kakeya, Kenichi Saito, Akiyoshi Nakata, Hajime Arai, Zempachi Ogumi
  • Patent number: 9960450
    Abstract: To provide a flame retardant non-aqueous electrolyte solution for secondary batteries, with which a lithium ion secondary battery which is less likely to undergo thermal runaway and which is excellent in the high temperature storage properties can be obtained; and a lithium ion secondary battery using the non-aqueous electrolyte solution for secondary batteries. A non-aqueous electrolyte solution for secondary batteries, comprising an electrolyte salt and a liquid composition, which contains either one or both of monofluorophosphate anions and difluorophosphate anions derived from at least part of the electrolyte salt, wherein at least a lithium salt is contained as one type of the electrolyte salt, and the liquid composition comprises at least one fluorine-containing solvent (?) selected from the group consisting of a fluorine-containing ether compound, a fluorine-containing chain carboxylic acid ester compound and a fluorine-containing chain carbonate compound, and a cyclic carboxylic acid ester compound.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: May 1, 2018
    Assignee: Asahi Glass Company, Limited
    Inventors: Yu Onozaki, Eisuke Murotani, Toyokazu Enta
  • Patent number: 9954229
    Abstract: A device comprising: a lithium sulfur redox flow battery comprising an electrolyte composition comprising: (i) a dissolved Li2Sx electroactive salt, wherein x?4; (ii) a solvent selected from dimethyl sulfoxide, tetrahydrofuran, or a mixture thereof; and (iii) a supporting salt at a concentration of at least 2 M, as measured by moles of supporting salt divided by the volume of the solvent without considering the volume change of the electrolyte after dissolving the supporting salt.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: April 24, 2018
    Assignee: Battelle Memorial Institute
    Inventors: Jie Xiao, Jun Liu, Huilin Pan, Wesley A. Henderson
  • Patent number: 9923238
    Abstract: An object is to provide a non-aqueous electrolyte solution that can improve the capacity deterioration and gas generation associated with the high-temperature storage of non-aqueous electrolyte batteries. A further object is to provide a non-aqueous electrolyte battery that uses this non-aqueous electrolyte solution. These objects can be achieved by using a non-aqueous electrolyte solution that incorporates, in prescribed contents, (A) a compound having at least two isocyanate groups per molecule and a compound having at least two cyano groups per molecule.
    Type: Grant
    Filed: August 12, 2013
    Date of Patent: March 20, 2018
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shuhei Sawa, Minoru Kotato, Kunihisa Shima, Yasuyuki Shigematsu, Masamichi Onuki, Kanako Takiguchi
  • Patent number: 9912010
    Abstract: An electrolytic solution for a lithium battery includes a lithium salt, an organic solvent; a disultone-based compound represented by Formula 1, and a non-polar unsaturated group-containing cyclic carbonate-based compound: wherein, in Formula 1, A1 to A4 are each independently a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl; n1 to n4 are each independently an integer 1 to 3, and when n1 to n4 are each independently two or greater, a respective plurality of any of A1s to A4s are identical to or different from each other. When the lithium battery includes the electrolyte solution, room-temperature and high-temperature lifespan characteristics of the lithium battery may improve.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: March 6, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Siyoung Cha, Myungheui Woo, Seonghun Jeong, Woocheol Shin
  • Patent number: 9905886
    Abstract: A non-aqueous liquid electrolyte for a secondary battery, containing: at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound; an aromatic ketone compound; an organic solvent; and an electrolyte salt, in which, with respect to 100 parts by mass of the organic solvent, the aromatic ketone compound is 0.001 to 10 parts by mass and the at least one selected from a carbonate compound having a halogen atom and a sulfur-containing ring compound is 0.001 to 10 parts by mass, and more than 50% by mass of the whole amount of the organic solvent is composed of a solvent with a melting point of 10° C. or less.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: February 27, 2018
    Assignee: FUJIFILM Corporation
    Inventors: Kunihiko Kodama, Michio Ono, Ikuo Kinoshita
  • Patent number: 9893378
    Abstract: The non-aqueous electrolyte solution of the present invention is a non-aqueous electrolyte solution comprising acetonitrile and a lithium salt, wherein the anion of the lithium salt has a LUMO (lowest unoccupied molecular orbital) energy in the range of ?2.00 to 4.35 eV, and a HOMO (highest occupied molecular orbital) energy in the range of ?5.35 to ?2.90 eV.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: February 13, 2018
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Naoki Matsuoka, Takehiro Koga, Hitoshi Shobukawa, Akira Yoshino
  • Patent number: 9853326
    Abstract: An object is to provide a nonaqueous electrolyte and a nonaqueous-electrolyte secondary battery which have excellent discharge load characteristics and are excellent in high-temperature storability, cycle characteristics, high capacity, continuous-charge characteristics, storability, gas evolution inhibition during continuous charge, high-current-density charge/discharge characteristics, discharge load characteristics, etc. The object has been accomplished with a nonaqueous electrolyte which comprises: a monofluorophosphate and/or a difluorophosphate; and further a compound having a specific chemical structure or specific properties.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: December 26, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyuki Tokuda, Minoru Kotato, Masahiro Takehara, Shinichi Kinoshita
  • Patent number: 9847549
    Abstract: An electrolyte for a rechargeable lithium battery including a lithium salt, a non-aqueous organic solvent, and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a rechargeable lithium battery including the same.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: December 19, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seung-Tae Lee, Jung-Yi Yu, Woo-Cheol Shin, Sang-Il Han, Sang-Hoon Kim, Byung-Joo Chung, Duck-Hyun Kim, Myung-Hwan Jeong, Tae-Hyun Bae, Mi-Hyun Lee, Eon-Mi Lee, Ha-Rim Lee, Moon-Sung Kim, In-Haeng Cho, E-Rang Cho, Dong-Myung Choi, Vladimir Egorov, Makhmut Khasanov, Pavel Alexandrovich Shatunov, Alexey Tereshchenko, Denis Chernyshov
  • Patent number: 9799878
    Abstract: Disclosed are a cathode active material for high voltage and a lithium secondary battery including the same. More particularly, a cathode active material including spinel-type compound particles having a composition represented by Formula 1 below; Li1+aMxMn2?xO4?zAz??(1) where a, x and z are defined in a specification of the present invention, and metal oxides or metal hydroxides present on surfaces of the spinel-type compound particles, and a lithium secondary battery including the same.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: October 24, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Minsuk Kang, Seong Hoon Kang, Ho Suk Shin, Byung Chun Park, Sang Min Park, Geungi Min
  • Patent number: 9673484
    Abstract: Disclosed is a secondary battery including an electrolyte and/or an electrode, the electrolyte including an electrolyte salt and an electrolyte solvent, i) a cyclic carbonate compound substituted with at least one halogen element; and ii) a compound containing a vinyl group in a molecule thereof, and the electrode including a solid electrolyte interface (SEI) layer partially or totally formed on the surface thereof by electrical reduction of the two compounds.
    Type: Grant
    Filed: January 28, 2015
    Date of Patent: June 6, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Hochun Lee, Jeong-Ju Cho, Sujin Yoon
  • Patent number: 9666901
    Abstract: An additive for an electrolyte solution includes a lithium salt having an oxalato complex as an anion and a compound represented by following Chemical Formula 1. Wherein, a represents C or Si, b represents H or F, and n represents an integer of 1 to 5. A non-aqueous electrolyte solution including the additive and a lithium secondary battery including the electrolyte solution also are provided.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: May 30, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Kyoung Ho Ahn, Chul Haeng Lee, Doo Kyung Yang, Young Min Lim, Yu Ha An, Min Jung Kim
  • Patent number: 9660269
    Abstract: The present invention provides positive and negative electrodes, for a lithium secondary battery, allowing a battery to be quickly and fully charged in a very short period of time, for example, within one minute and allowing the battery to be used for vehicles at low temperatures. An organic electrolytic solution is permeated into an electrode group formed by winding positive and negative electrodes or by laminating the positive and negative electrodes one upon another with a separator being interposed therebetween to repeatingly occlude and release lithium ions. The positive electrode active substance and the negative electrode active substance have at least one phase selected from among a graphene phase and an amorphous phase as a surface layer thereof. An activated carbon layer is formed on a surface of the positive electrode active substance and that of the negative electrode active substance.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: May 23, 2017
    Assignee: SEI CORPORATION
    Inventors: Takehiko Sawai, Shinji Saito, Kazuma Hanai
  • Patent number: 9653753
    Abstract: The demand for improvements in lithium non-aqueous electrolyte secondary batteries has been constantly increasing in recent years, but the durability—most prominently the cycle characteristics—have resided in a trade off relationship with properties such as the capacity, resistance, and output characteristics. A problem has thus been a poor overall property balance. In order to solve this problem, the present invention uses a non-aqueous electrolyte solution including, in addition to an electrolyte and a non-aqueous solvent, (A) at least one compound selected from the group consisting of carbonates having a carbon-carbon unsaturated bond, compounds represented by the following general formula (1), sulfoxides, sulfites, sulfones, sulfonates, sultones, and sulfates; (B) a fluorine atom-containing cyclic carbonate; and (C) a compound that has at least two isocyanate groups in the molecule.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: May 16, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shuhei Sawa, Kunihisa Shima, Yasuyuki Shigematsu, Masamichi Onuki, Atsushi Watarai
  • Patent number: 9640839
    Abstract: The present invention relates to an electrolyte composition (A) containing (i) at least one aprotic organic solvent; (ii) at least one conducting salt; (iii) at least one compound of formula (I) and (iv) optionally at least one further additive.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: May 2, 2017
    Assignee: BASF SE
    Inventors: Marta Porta Garcia, Frederick Francois Chesneau, Michael Schmidt, Dominic Riedel, Denis Schroeder, Joaquim Henrique Teles, Arnd Garsuch, Stefan Herzog, Axel Kirste, Patrick Krieg, Christian Karcher, Nicolas Vautravers, Stefano Meini
  • Patent number: 9640836
    Abstract: A solid-state electrolyte suitable for use in an electrochemical cell includes a first borohydride salt, a second borohydride salt, and an ether solvent. The first borohydride salt can be magnesium borohydride, or a variate thereof, and the second borohydride salt can include lithium and/or sodium borohydride. The ether solvent is present at low concentration, insufficient to form a liquid electrolyte. The solid-state electrolyte is a homogeneous solid at room temperature, and possesses appreciable ionic conductivity. Methods for forming the solid-state electrolyte include combining the aforementioned components at specified molar ratios, and may include additional mixing. Electrochemical cells having the solid-state electrolyte support appreciable current density, and magnesium electrochemical cells in particular support magnesium deposition and stripping.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 2, 2017
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Rana Mohtadi, Oscar Tutusaus, Emily Nelson
  • Patent number: 9627712
    Abstract: The present invention provides an electrolyte for lithium and/or lithium-ion batteries comprising a lithium salt in a liquid carrier comprising heteroaromatic compound including a five-membered or six-membered heteroaromatic ring moiety selected from the group consisting of a furan, a pyrazine, a triazine, a pyrrole, and a thiophene, the heteroaromatic ring moiety bearing least one carboxylic ester or carboxylic anhydride substituent bound to at least one carbon atom of the heteroaromatic ring. Preferred heteroaromatic ring moieties include pyridine compounds, pyrazine compounds, pyrrole compounds, furan compounds, and thiophene compounds.
    Type: Grant
    Filed: February 12, 2014
    Date of Patent: April 18, 2017
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Gang Cheng, Daniel P. Abraham
  • Patent number: 9601806
    Abstract: An electro lye includes a compound of Formula I or IA: where each instance of R1 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R2 is independently H, alkyl, alkoxy, alkenyl, aryl, heteroaryl, or cycloalkyl; each instance of R3 is independently H, alkyl, alkenyl, aryl, or cycloalkyl; each instance of R4 is independently H, halogen, CN, NO2, phosphate, alkyl, alkenyl, aryl, heteroaryl, or cycloalkyl; x is 1, 2, 3, 4, or 5; y is 1 or 2; and z is 0, 1, 2, 3, or 4.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: March 21, 2017
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Lu Zhang, Zhengcheng Zhang, Khalil Amine
  • Patent number: 9601809
    Abstract: A lithium ion secondary battery which is a non-aqueous electrolyte secondary battery comprising a positive electrode comprising a positive electrode active material capable of absorbing and releasing lithium, and an electrolyte solution comprising a non-aqueous electrolyte solvent, wherein the positive electrode comprises a sulfate group, and the non-aqueous electrolyte solvent comprises a sulfone compound represented by a specified formula.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: March 21, 2017
    Assignee: NEC Corporation
    Inventors: Makiko Takahashi, Takehiro Noguchi
  • Patent number: 9590276
    Abstract: Disclosed is an electrochemical device comprising a cathode having a complex formed between a surface of a cathode active material and an aliphatic di-nitrile compound; and a non-aqueous electrolyte containing 1-10 wt % of a compound of Formula 1 or its decomposition product based on the weight of the electrolyte.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: March 7, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Young-Soo Kim, Soon-Ho Ahn, Soo-Hyun Ha
  • Patent number: 9583280
    Abstract: An electricity storage device maintains low internal resistance and high electric capacity. The nonaqueous-electrolytic-solution hybrid electricity storage device employs an anode into/from which lithium can be intercalated and deintercalated and a cathode including activated carbon, even after high-temperature storage and/or high-temperature charging/discharging. Specifically, this electricity storage device includes an anode into/from which lithium can be intercalated and deintercalated, a cathode that includes activated carbon, and a nonaqueous electrolytic solution, wherein the electricity storage device employs a nonaqueous electrolytic solution that includes at least one type of compound represented by one of general formulas (1) to (5). Details on the general formulas (1) to (5) are as described in the Description.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: February 28, 2017
    Assignee: ADEKA CORPORATION
    Inventors: Takayuki Taki, Hiroaki Watanabe, Atsuki Shibuya, Akiko Tasaki, Eiji Katsuno
  • Patent number: 9583754
    Abstract: A heat-resistant insulating layer-provided separator includes a polyolefin layer and a heat-resistant insulating layer formed on one or both surfaces of the polyolefin layer and containing a heat-resistant resin and an oxidation-resistant ceramic particle. The heat-resistant insulating layer contains the oxidation-resistant ceramic particle in a proportion of from 60 to 90%.
    Type: Grant
    Filed: September 17, 2008
    Date of Patent: February 28, 2017
    Assignee: Sony Corporation
    Inventors: Yoshiaki Obana, Atsushi Kajita, Yukako Teshima, Kenichi Ogawa, Hisashi Tsujimoto
  • Patent number: 9541516
    Abstract: There is provided an electrolyte solution including a solvent formed from a sulfone, and a magnesium salt dissolved in the solvent.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: January 10, 2017
    Assignee: Sony Corporation
    Inventors: Yuri Nakayama, Hideki Kawasaki, Hiroyuki Morioka
  • Patent number: 9525196
    Abstract: The present invention aims to provide an electrolyte solution for a lithium-air cell, the electrolyte solution having excellent chemical stability and a high withstand voltage and being in a stable liquid state without undergoing precipitation of salts or coagulation over a broad temperature range. The present invention also aims to provide a lithium-air cell which is produced using the electrolyte solution for a lithium-air cell and has excellent long-term reliability and good charge-discharge cycle characteristics. The present invention relates to an electrolyte solution for a lithium-air cell, the electrolyte solution containing: an organic solvent that contains a chain alkyl sulfone compound represented by Formula (1): wherein R1 and R2 independently represent a straight-chain or branched-chain alkyl group containing 1 to 4 carbons and may be the same as or different from each other; and a lithium salt.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: December 20, 2016
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Kazuyuki Kobayashi, Ichiro Fuseya
  • Patent number: 9482634
    Abstract: There is provided an electrolyte solution including a solvent formed from a sulfone, and a magnesium salt dissolved in the solvent.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: November 1, 2016
    Assignee: Sony Corporation
    Inventors: Yuri Nakayama, Hideki Kawasaki, Hiroyuki Morioka
  • Patent number: 9466856
    Abstract: Disclosed is a non-aqueous electrolyte comprising: an acrylate compound; a sulfinyl group-containing compound; an organic solvent; and an electrolyte salt. Also, disclosed is an electrode comprising a coating layer formed partially or totally on a surface thereof, the coating layer comprising: (i) a reduced form of an acrylate compound; and (ii) a reduced form of a sulfinyl group-containing compound. Further, disclosed is an electrochemical device comprising a cathode, an anode and a non-aqueous electrolyte, wherein (i) the non-aqueous electrolyte is the aforementioned non-aqueous electrolyte; and/or (ii) the cathode and/or the anode is the aforementioned electrode.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: October 11, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Jeong-Ju Cho, Ho-Chun Lee, Su-Jin Yoon, Soo-Min Park
  • Patent number: 9455476
    Abstract: A secondary battery capable of achieving superior cycle characteristics, superior storage characteristics, and superior swollenness characteristics is provided. The secondary battery includes a cathode, an anode, and an electrolyte containing a solvent and an electrolyte salt. The solvent contains halogenated cyclic ester carbonate. The halogenated cyclic ester carbonate is a cyclic compound that has one or more fluorine groups, one or more fluorinated alkyl groups, and a carbonyl group.
    Type: Grant
    Filed: January 26, 2010
    Date of Patent: September 27, 2016
    Assignee: SONY CORPORATION
    Inventors: Masayuki Ihara, Hiroyuki Yamaguchi, Tadahiko Kubota
  • Patent number: 9437869
    Abstract: It is an object of the present invention to provide a positive electrode for nonaqueous electrolyte secondary batteries that can suppress decreases in the discharge capacity and discharge voltage even when continuous charging is performed at high temperature and that can also suppress decreases in the discharge voltage and energy density even in the charge and discharge after the continuous charging, and to provide a nonaqueous electrolyte secondary battery that uses the positive electrode. The positive electrode includes a positive electrode active material composed of a mixture containing lithium cobalt oxide 21 having a surface to which an erbium compound 22 is partly adhered and lithium nickel cobalt manganese oxide and a binder. The content of the lithium nickel cobalt manganese oxide is 1% by mass or more and 50% by mass or less relative to the total amount of the positive electrode active material.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: September 6, 2016
    Assignee: SANYO Electric Co., Ltd.
    Inventors: Daizo Jito, Takeshi Ogasawara