Include Electrolyte Chemically Specified And Method Patents (Class 429/188)
  • Patent number: 11312818
    Abstract: This is to provide a non-halogen containing compound excellent in proton conductivity and capable of suitably being used for a polymer electrolytic fuel cell The compound of the present invention has a structure represented by the following general formula (I). (In the above-mentioned general formula (I), “l” and “n” are molar fractions when l+n=1.0, and 0?l<1.0 and 0<n?1.0, A represents a structure represented by the following general formula (II) or (III), B represents a structure represented by the following general formula (VII), the respective structural units are random copolymerized, and at least one benzene ring in the formula (I) has at least one sulfo group.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: April 26, 2022
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Taichi Nakazawa, Shoichi Kondo
  • Patent number: 11309544
    Abstract: Provided are electrochemical secondary cells that exhibit excellent abuse tolerance, deep discharge and overcharge conditions including at extreme temperatures and remain robust and possess excellent performance. Cells as provided herein include: a cathode a polycrystalline cathode electrochemically active material including the formula Li1+xMO2+y, wherein ?0.9?x?0.3, ?0.3?y?0.3, and wherein M includes Ni at 80 atomic percent or higher relative to total M, the cathode electrochemically active material comprising a non-uniform distribution of Co; an anode including an anode electrochemically active material of the formula Li4+aTi5O12+b wherein ?0.3?a?3.3, ?0.3?b?0.3; and wherein the anode and the cathode each independently include a current collector substrate comprising aluminium.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: April 19, 2022
    Assignee: CAMX Power LLC
    Inventors: Kenan Sahin, David Ofer, Daniel Kaplan, Suresh Sriramulu
  • Patent number: 11309583
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery and a lithium secondary battery including the same are disclosed herein. In an embodiment, a non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt, an organic solvent, and an additive, wherein the additive is a mixed additive which includes lithium difluorophosphate, fluorobenzene, tetravinylsilane, and a compound containing one sulfonate group or sulfate group in a weight ratio of 1:2:0.05:0.5 to 1:8:0.3:2.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: April 19, 2022
    Inventors: Ha Eun Kim, Young Min Lim, Gwang Yeon Kim, Chul Haeng Lee
  • Patent number: 11302964
    Abstract: An electrolytic solution for a nonaqueous electrolyte battery according to the present invention includes: (I) at least one kind of silane compound represented by the following general formula (1); (II) at least one kind selected from the group consisting of a cyclic sulfonic acid compound and a cyclic sulfuric ester compound; (III) a nonaqueous organic solvent; and (IV) a solute. The nonaqueous electrolyte battery with this electrolytic solution achieves a good balance between improvement of high-temperature storage characteristics under high-temperature conditions of 70° C. or higher and reduction of gas generation during high-temperature storage. Si(R1)x(R2)4-x??(1) In the general formula (1), R1 is each independently a carbon-carbon unsaturated bond-containing group; R2 is each independently selected from a fluorine group and a C1-C10 linear or C3-C10 branched alkyl group which may have a fluorine atom and/or an oxygen atom; and x is an integer of 2 to 4.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: April 12, 2022
    Assignee: Central Glass Company, Limited
    Inventors: Wataru Kawabata, Mikihiro Takahashi, Takayoshi Morinaka, Makoto Kubo
  • Patent number: 11302928
    Abstract: The present invention is a carbon material for a catalyst carrier of a polymer electrolyte fuel cell, which has a three-dimensional dendritic structure, and simultaneously satisfies the following (A), (B), and (C). (A) By a laser Raman spectroscopic analysis with a wavelength of 532 nm, a standard deviation ?(R) of an intensity ratio (R value) of an intensity of a D-band (near 1360 cm?1) to an intensity of a G-band (near 1580 cm?1) measured with a beam diameter of 1 ?m at 50 measurement points is from 0.01 to 0.07. (B) A BET specific surface area SBET is from 400 to 1520 m2/g. (C) A nitrogen gas adsorption amount VN:0.4-0.8 during a relative pressure (p/p0) from 0.4 to 0.8 is from 100 to 300 cc(STP)/g. A method of producing such a carbon material for a catalyst carrier is also included.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: April 12, 2022
    Assignee: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD.
    Inventors: Takashi Iijima, Kenichiro Tadokoro, Masataka Hiyoshi, Shinya Furukawa, Tomoko Komura, Kazuyoshi Masaki, Hiroyuki Hayashida, Wakana Tada
  • Patent number: 11289733
    Abstract: A rechargeable lithium battery includes a positive electrode including a positive current collector and a positive active mass layer on the positive current collector, the positive active mass layer including a positive active material; a negative electrode including a negative current collector and a negative active mass layer on the negative current collector, the negative active mass layer including a negative active material; and an electrolyte, wherein Equation 1 is satisfied: 0.3?A/B?2.5??Equation 1 wherein, in Equation 1, A satisfies Equation 2, and B satisfies Equation 3: 0.01?active mass density (g/cc) of the positive active mass layer/thickness (?m) of the positive electrode?0.1??Equation 2 0.01?active mass density (g/cc) of the negative active mass layer/thickness (?m) of the negative electrode?0.05??Equation 3.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: March 29, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Jin-Man Jeoung
  • Patent number: 11283108
    Abstract: Disclosed is an electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a compound represented by Chemical Formula 1. In Chemical Formula 1, each substituent is the same as in the detailed description. A rechargeable lithium battery includes: a positive electrode; a negative electrode; and the electrolyte.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: March 22, 2022
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Harim Lee, Hyejin Park, Myungheui Woo, Jin-Hyeok Lim, Hyunbong Choi
  • Patent number: 11271248
    Abstract: An all-inorganic electrolyte formulation for use in a lithium ion battery system comprising at least one of each a phosphoranimine, a phosphazene, a monomeric organophosphate and a supporting lithium salt. The electrolyte preferably has a melting point below 0° C., and a vapor pressure of combustible components at 60.6° C. sufficiently low to not produce a combustible mixture in air, e.g., less than 40 mmHg at 30° C. The phosphoranimine, phosphazene, and monomeric phosphorus compound preferably do not have any direct halogen-phosphorus bonds. A solid electrolyte interface layer formed by the electrolyte with an electrode is preferably thermally stable ?80° C.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: March 8, 2022
    Assignee: New Dominion Enterprises, Inc.
    Inventor: Mason K. Harrup
  • Patent number: 11271207
    Abstract: An electrical or electrochemical cell, c a cathode layer, an electrolyte layer, and an anode layer is disclosed. The cathode layer includes a first material providing a cathodic electric transport, charge storage or redox function. The electrolyte layer includes a polymer, a first electrolyte salt, and/or an ionic liquid. The anode layer includes a second material providing an anodic electric transport, charge storage or redox function. At least one of the cathode and anode layers includes the ionic liquid, a second electrolyte salt, and/or a transport-enhancing additive.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: March 8, 2022
    Assignee: Imprint Energy, Inc.
    Inventors: John Devin MacKenzie, Christine Chihfan Ho, Karthik Yogeeswaran, Po-Jen Cheng
  • Patent number: 11264610
    Abstract: This application relates to a battery comprising a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active material coated on at least one surface of the positive electrode current collector, and wherein the underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material and a first conductive material, and the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties.
    Type: Grant
    Filed: May 24, 2019
    Date of Patent: March 1, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Fenggang Zhao, Yongshou Lin, Zhenhua Li, Haizu Jin, Xiaowen Zhang
  • Patent number: 11251436
    Abstract: According to one embodiment, there is provided a secondary battery including a positive electrode, a negative electrode, and an aqueous electrolyte. The positive electrode includes a positive electrode active material. The negative electrode includes a negative electrode active material and an additive resin containing a hydroxyl group unit and a first unit. The first unit consists of at least one of a butyral unit and an acetal unit. A content ratio of a content of the first unit contained in the additive resin to a content of the hydroxyl group unit contained in the additive resin is in a range of 1.2 to 18.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: February 15, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yasuyuki Hotta, Shinsuke Matsuno, Norio Takami
  • Patent number: 11223035
    Abstract: A graphene-enabled hybrid particulate for use as a lithium-ion battery anode active material, wherein the hybrid particulate is formed of a single or a plurality of graphene sheets and a single or a plurality of fine primary particles of a niobium-containing composite metal oxide, having a size from 1 nm to 10 ?m, and the graphene sheets and the primary particles are mutually bonded or agglomerated into the hybrid particulate containing an exterior graphene sheet or multiple exterior graphene sheets embracing the primary particles, and wherein the hybrid particulate has an electrical conductivity no less than 10?4 S/cm and said graphene is in an amount of from 0.01% to 30% by weight based on the total weight of graphene and the niobium-containing composite metal oxide combined.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: January 11, 2022
    Assignee: Global Graphene Group, Inc.
    Inventors: Aruna Zhamu, Bor Z Jang
  • Patent number: 11209843
    Abstract: A control method, system and device for a flexible carbon cantilever beam actuated by a smart material is provided. The new control method, system and device aims to solve the problems of control overflow and instability that are likely to occur in the distributed parameter system constructed in the prior art. The method includes: acquiring an elastic displacement of the flexible carbon cantilever beam in real time as input data; and obtaining, based on the input data, a control torque through a distributed parameter model constructed in advance, and performing vibration control on the flexible carbon cantilever beam. The new control method, system and device improves the control accuracy and stability of the distributed parameter system.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: December 28, 2021
    Assignee: INSTITUTE OF AUTOMATION, CHINESE ACADEMY OF SCIENCES
    Inventors: Hongjun Yang, Min Tan, Zengguang Hou, Junzhi Yu, Long Cheng, Zhengxing Wu, Wei He, Zhijie Liu, Tairen Sun
  • Patent number: 11205801
    Abstract: Disclosed is a lithium secondary battery having an improved lifetime. The lithium secondary battery may include: a cathode including a cathode active material; an anode including an anode active material; a separator disposed between the cathode and the anode; and an electrolyte including bis(trimethylsilyl) 2,2-thiodiacetate.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: December 21, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yoon Sung Lee, Sangjin Park, Shinkook Kong, Jung Young Cho, Dongjun Kim, Ikkyu Kim, Yeolmae Yeo, Jieun Lee, Sang Mok Park, SungHoon Lim
  • Patent number: 11201319
    Abstract: A positive electrode active material contains a lithium composite oxide and a covering material. The lithium composite oxide has a crystal structure that belongs to space group Fd-3m. The ration I(111)/I(400) of a first integrated intensity I(111) of a first peak corresponding to a (111) plane to a second integrated intensity I(400) of a second peak corresponding to a (400) plane in an XRD pattern of the lithium composite oxide satisfies 0.05?I(111)/I(400)?0.90. The covering material has an electron conductivity of 106 S/m or less.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: December 14, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takayuki Ishikawa, Ryuichi Natsui, Kensuke Nakura
  • Patent number: 11189862
    Abstract: The present disclosure provides electrolytes for an electrochemical device. In some embodiments, these electrolytes are Mg salts comprising 10-vertex or 12-vertex carborane anions. The present disclosure also provides processes for preparing electrolytes for an electrochemical device. In some embodiments, the process comprises reduction of a reactive cation complexed with a 10-vertex or 12-vertex carborane or 12-vertex borate anion to form metal carborane or borate electrolytes. In some embodiments, the process comprises comproportionating a Mg+2 10-vertex or 12-vertex carborane salt to form a Mg+1 electrolyte comprising a 10-vertex or 12-vertex carborane. The present disclosure further provides electrochemical devices comprising the electrolytes disclosed herein. In some embodiments, the electrochemical device comprises an electrolyte that is stable at an electrical potential greater than 4 V vs Mg0/+2.
    Type: Grant
    Filed: May 4, 2020
    Date of Patent: November 30, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Vincent Lavallo, Juchen Guo, Scott G. McArthur
  • Patent number: 11189833
    Abstract: The present invention relates to an electrode plate, an electrochemical device and a safety coating. The electrode plate comprises a current collector, an electrode active material layer and a safety coating disposed between the current collector and the electrode active material layer, the safety coating layer comprising a fluorinated polyolefin and/or chlorinated polyolefin polymer matrix, a conductive material and an inorganic filler. The electrode plate can quickly open the circuit when the electrochemical device (for example, a capacitor, a primary battery, or a secondary battery) is in a high temperature condition or an internal short circuit occurs, and thus it may improve the high temperature safety performance of the electrochemical device.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: November 30, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Xiaowen Zhang, Haizu Jin, Zhenhua Li
  • Patent number: 11183677
    Abstract: A preparation method of a lithium-ion battery electrode sheet includes: adding a powdered thermal decomposition additive, an active material, a binder, and a conductive agent into a solvent according to a predetermined ratio and a specific order, performing continuous stirring until the solvent is uniformly mixed, obtaining an electrode slurry, coating the prepared and obtained electrode slurry onto a current collector to obtain a lithium-ion battery wet electrode sheet, and heating and drying the lithium-ion battery wet electrode sheet. The lithium-ion battery electrode sheet with the vertical vent structures is accordingly prepared and obtained. The product includes a current collector, an electrode coating layer, and a plurality of vertical vent structures which are uniformly distributed.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: November 23, 2021
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Huamin Zhou, Yun Zhang, Yunming Wang, Maoyuan Li, Ruoyu Xiong, Hui Yang, Bo Yan
  • Patent number: 11177469
    Abstract: The present application relates to a cathode, an electrochemical device and an electronic device comprising the same. The cathode comprises: a cathode current collector; a first cathode active material layer, comprising a first cathode active material; and a second cathode active material layer, comprising a second cathode active material, wherein the first cathode active material layer is disposed between the cathode current collector and the second cathode active material layer, and the first cathode active material layer is formed on at least one surface of the cathode current collector; and wherein the second cathode active material is embedded in the first cathode active material layer and forms a continuous transition layer with the first cathode active material at an interface between the first cathode active material layer and the second cathode active material layer.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: November 16, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventors: Huawei Zhong, Chaowang Lin, Fan Yang, Yisong Su
  • Patent number: 11177477
    Abstract: The present disclosure provides a negative electrode plate and a battery, the negative electrode plate comprises a negative current collector and a negative film, the negative film is provided on at least one surface of the negative current collector and comprises a negative active material. The negative active material comprises graphite, and an OI value of the negative film represented by VOI and a pressing density of the negative film represented by PD satisfy a relationship: 0.7?(80/VOI+43/PD)×PD/VOI?21.5, where a unit of the pressing density of the negative film represented by PD is g/cm3. The battery of the present disclosure can have the characteristics of fast charging speed, high energy density, good safety performance and long cycle life at the same time.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: November 16, 2021
    Assignee: CON TEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Meng Kang, Tianquan Peng, Yuliang Shen, Libing He
  • Patent number: 11171327
    Abstract: A positive electrode active material includes a lithium composite oxide containing: at least one element selected from the group consisting of fluorine, chlorine, nitrogen, sulfur, bromine, and iodine; and a covering material that covers a surface of the lithium composite oxide. The lithium composite oxide has a crystal structure that belongs to a space group R-3 m. The ratio I(003)/I(104) of a first integrated intensity I(003) of a first peak corresponding to a (003) plane to a second integrated intensity I(104) of a second peak corresponding to a (104) plane in an XRD pattern of the lithium composite oxide satisfies 0.62?I(003)/I(104) ?0.90. The covering material has an electron conductivity of 106S/m or less.
    Type: Grant
    Filed: December 7, 2018
    Date of Patent: November 9, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takayuki Ishikawa, Ryuichi Natsui, Issei Ikeuchi, Kensuke Nakura
  • Patent number: 11165065
    Abstract: Provided are electrochemical secondary cells that exhibit excellent abuse tolerance, deep discharge and overcharge conditions including at extreme temperatures and remain robust and possess excellent performance. Cells as provided herein include: a cathode a polycrystalline cathode electrochemically active material including the formula Li1+xMO2+y, wherein ?0.9?x?0.3, ?0.3?y?0.3, and wherein M includes Ni at 80 atomic percent or higher relative to total M, an anode including an anode electrochemically active material defined by an electrochemical redox potential of 400 mV or greater vs Li/Li+.
    Type: Grant
    Filed: April 10, 2020
    Date of Patent: November 2, 2021
    Assignee: CAMX Power LLC
    Inventors: Thomas Carney, Rahul Malik, David Ofer, Kenan Sahin, Daniel Kaplan, Suresh Sriramulu
  • Patent number: 11145899
    Abstract: A battery comprising: an anode comprising a first electrochemically active material: a cathode comprising both a second electrochemically active material and a first electrolyte; and a second electrolyte interposed between the anode and the cathode; wherein at least one of the first electrolyte and second electrolyte comprises a solid polymer electrolyte; wherein the solid polymer electrolyte has a glassy state, and comprises both at least one cationic diffusing ion and at least one anionic diffusing ion; wherein at least one of the at least one cationic diffusing ions comprises lithium; wherein at least one of the at least cationic diffusing ion and the at least one of the anionic diffusing ion is mobile in the glassy state; and wherein the first electrochemically active material comprises a lithium metal.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: October 12, 2021
    Assignee: IONIC MATERIALS, INC.
    Inventors: Michael A. Zimmerman, Randolph Leising
  • Patent number: 11133530
    Abstract: Additives to electrolytes that enable the formation of comparatively more robust SEI films on silicon anodes. The SEI films in these embodiments are seen to be more robust in part because the batteries containing these materials have higher coulombic efficiency and longer cycle life than comparable batteries without such additives.
    Type: Grant
    Filed: April 30, 2019
    Date of Patent: September 28, 2021
    Assignee: Wildcat Discovery Technologies, Inc.
    Inventors: Ye Zhu, Gang Cheng, Deidre Strand, Jen-Hsien Yang
  • Patent number: 11127979
    Abstract: A non-aqueous solvent composition for a lithium battery comprises a fluorinated solvent mixture that consists essentially of a 1,2-difluoroethylene carbonate and a fluoro-substituted dialkyl carbonate in a respective weight ratio of about 1:3 to about 1:1, and optionally up to about 30 wt % of an additional organic solvent. An electrolyte for a lithium ion battery comprises a lithium salt dissolved in a non-aqueous solvent composition comprising the fluorinated solvent mixture.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: September 21, 2021
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Zhengcheng Zhang, Adam P. Tornheim, Meinan He, Jason Croy
  • Patent number: 11101500
    Abstract: An electrochemical cell comprising (A) an anode comprising at least one anode active material, (B) a cathode comprising at least one cathode active material selected from mixed lithium transition metal oxides containing Mn and at least one second transition metal; lithium intercalating mixed oxides containing Ni, Al and at least one second transition metal; LiNiPO4; LiMnPO4; and LiCoPO4; (C) an electrolyte composition containing (i) at least one aprotic organic solvent; (ii) at least one lithium ion containing conducting salt; (iii) a compound of formula (I).
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: August 24, 2021
    Assignee: BASF SE
    Inventors: Manuel Alejandro Mendez Agudelo, Johannes David Hoecker, Frederick Francois Chesneau, Kazuki Yoshida, Jinbum Kim
  • Patent number: 11094957
    Abstract: A flow battery includes a first liquid containing a first electrode mediator, a first electrode, a first active material, and a first circulator that circulates the first liquid between the first electrode and the first active material. The first electrode mediator includes at least one benzene derivative that is at least one selected from the group consisting of 1,4-di-tert-butyl-2,5-dimethoxybenzene, 1,4-dichloro-2,5-dimethoxybenzene, 1,4-difluoro-2,5-dimethoxybenzene, and 1,4-dibromo-2,5-dimethoxybenzene.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: August 17, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventor: Honami Nariyama
  • Patent number: 11063305
    Abstract: An enhanced solid state battery cell is disclosed. The battery cell can include a first electrode, a second electrode, and a solid state electrolyte layer interposed between the first electrode and the second electrode. The battery cell can further include a resistive layer interposed between the first electrode and the second electrode. The resistive layer can be electrically conductive in order to regulate an internal current flow within the battery cell. The internal current flow can result from an internal short circuit formed between the first electrode and the second electrode. The internal short circuit can be formed from the solid state electrolyte layer being penetrated by metal dendrites formed at the first electrode and/or the second electrode.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: July 13, 2021
    Assignee: American Lithium Energy Corporation
    Inventor: Jiang Fan
  • Patent number: 11062855
    Abstract: Provided herein are devices comprising one or more cells, and methods for fabrication thereof. The devices may be electrochemical devices. The devices may include three-dimensional supercapacitors. The devices may be microdevices such as, for example, microsupercapacitors. In some embodiments, the devices are three-dimensional hybrid microsupercapacitors. The devices may be configured for high voltage applications. In some embodiments, the devices are high voltage microsupercapacitors. In certain embodiments, the devices are high voltage asymmetric microsupercapacitors. In some embodiments, the devices are integrated microsupercapacitors for high voltage applications.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: July 13, 2021
    Assignees: The Regents of the University of California, Nanotech Energy, Inc.
    Inventors: Maher F. El-Kady, Richard B. Kaner, Jack Kavanaugh
  • Patent number: 11043693
    Abstract: According to one embodiment, a lithium ion secondary battery is provided. The lithium ion secondary battery includes a negative electrode containing a negative electrode active material-containing layer, a positive electrode, and an electrolyte containing Li ions and Na ions. The negative electrode active material-containing layer contains a Na-containing titanium composite oxide. A ratio (WE/WA) of an Na amount WE (g/g) in the electrolyte to an Na amount WA (g/g) in the negative electrode active material-containing layer satisfies Formula (1) below: 1×10?1?WE/WA?1×105??(1).
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: June 22, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yusuke Namiki, Yasuhiro Harada, Norio Takami
  • Patent number: 11038175
    Abstract: The present invention relates to a positive electrode active material pre-dispersion composition which includes a lithium iron phosphate-based positive electrode active material, a dispersant, and a solvent, wherein the dispersant includes a hydrogenated nitrile butadiene rubber (HNBR), a slurry composition for a secondary battery positive electrode which is prepared by using the positive electrode active material pre-dispersion composition, a positive electrode for a secondary battery, and a lithium secondary battery including the positive electrode.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: June 15, 2021
    Inventors: Byoung Hoon Ahn, Houng Sik Yoo, Chang Wan Koo, Hyun Chul Ha, Sang Hoon Choy, Jong Won Lee, Dong Hyun Kim, Gye Min Kwon
  • Patent number: 11031625
    Abstract: The present invention relates to a non-aqueous electrolyte for a lithium secondary battery including a pyridine-boron-based compound as an additive and a lithium secondary battery including the same, and particularly, to a non-aqueous electrolyte including at least two types of lithium salts and a pyridine-boron-based compound and a lithium secondary battery which has an enhanced effect of suppressing an increase in resistance and generation of gas after being stored at high temperature by including both the non-aqueous electrolyte and a negative electrode including lithium titanium oxide (LTO) as a negative electrode active material.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: June 8, 2021
    Inventors: Kyoung Ho Ahn, Yi Jin Jung, Yu Ra Jeong, Chul Haeng Lee, Young Min Lim
  • Patent number: 11024879
    Abstract: According to one embodiment, a secondary battery is provided. The secondary battery includes a positive electrode, a negative electrode, and an aqueous electrolyte containing alkali metal ions. The aqueous electrolyte contains an organic compound containing a carboxyl group or carboxylate group and a hydroxyl group. The pH of the aqueous electrolyte is 0 or less. The ratio of the weight of the organic compound to the weight of the aqueous electrolyte is within a range of 0.01% by weight to 6.5% by weight. The number of carbon atoms in the organic compound is 5 or more.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: June 1, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Yumiko Sekiguchi, Shinsuke Matsuno, Hayato Seki
  • Patent number: 11024881
    Abstract: The present invention provides an electrolyte additive comprising a salt of an anion, derived from a nitrogen-atom-containing compound, with Cs+ or Rb+. Further, the present invention provides an electrolyte additive further comprising lithium difluoro bis(oxalato) phosphate. The present invention provides a non-aqueous electrolyte comprising a lithium salt, a non-aqueous organic solvent, and the electrolyte additive, and may provide a lithium secondary battery comprising: a cathode employing a cathode active material; an anode employing an anode active material; a separator interposed between the cathode and the anode; and the non-aqueous electrolyte.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: June 1, 2021
    Inventors: Jae Yoon Kim, Hyeong Kyu Lim, Jong Hyun Lee, Ji Seong Han
  • Patent number: 11024884
    Abstract: The present application relates to an electrolyte, and an electrochemical device comprising the electrolyte. The electrolyte comprises a fluorinated cyclic carbonate and a multi-nitrilemulti-nitrile compound having an ether bond, wherein based on the total weight of the electrolyte, the weight percentage (Cf) of the fluorinated cyclic carbonate is greater than the weight percentage (Cn) of the multi-nitrilemulti-nitrile compound having an ether bond. The electrolyte of the present application can control the expansion of the electrochemical device, so that the electrochemical device has excellent cycle, storage and/or floating-charge performance.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: June 1, 2021
    Assignee: NINGDE AMPEREX TECHNOLOGY LIMITED
    Inventor: Kefei Wang
  • Patent number: 11018371
    Abstract: Systems and methods for batteries comprising a cathode, an electrolyte, and an anode, wherein functional aliphatic and/or aromatic amine compounds or derivatives are used as electrolyte additives to reduce gas generation in Li-ion batteries.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: May 25, 2021
    Assignee: Enevate Corporation
    Inventors: Liwen Ji, Benjamin Park
  • Patent number: 10991983
    Abstract: An object of the present invention is to provide a nonaqueous electrolytic solution and a nonaqueous electrolytic solution secondary battery capable of showing high output characteristics at a low temperature even after the battery is used to some extent, and capable of showing good high-rate properties, and further capable of showing sufficient performance again at low temperature even after stored at a high temperature. The nonaqueous electrolytic solution includes a nonaqueous solvent, an electrolyte dissolved in the nonaqueous solvent, (I) a difluoro ionic complex (1) represented by the general formula (1), and (II) at least one compound selected from the group consisting of a difluorophosphate salt, a monofluorophosphate salt, a specific salt having an imide anion, and a specific silane compound, and 95 mol % or more of the difluoro ionic complex (1) is a difluoro ionic complex (1-Cis) in a cis configuration represented by the general formula (1-Cis).
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: April 27, 2021
    Assignee: Central Glass Company Limited
    Inventors: Saori Itabashi, Katsutoshi Suzuki, Mikihiro Takahashi, Kazunari Takeda
  • Patent number: 10971726
    Abstract: The positive electrode includes a positive electrode composite layer. The negative electrode includes a negative electrode composite material layer. A whole of the positive electrode composite layer and a portion of the negative electrode composite material layer face each other with the separator being interposed therebetween. The negative electrode composite material layer includes a first region and a second region. The first region is a region that does not face the positive electrode composite layer and that extends from a position facing one end portion of the positive electrode composite layer to a point separated from the position by more than or equal to 0.1 mm and less than or equal to 10 mm. The second region is a region other than the first region. The first region includes silicon oxide doped with lithium. The second region includes silicon oxide.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: April 6, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Ryosuke Ohsawa, Akira Tsujiko, Kaoru Inoue
  • Patent number: 10957936
    Abstract: A lithium ion secondary battery includes a positive electrode containing a spinel-type lithium-nickel-manganese composite oxide as a positive electrode active material; a negative electrode containing, as a negative electrode active material, an active material in which introduction and release of lithium ions take place at a potential of 1.2 V or higher relative to a lithium potential; a separator inserted between the positive electrode and the negative electrode; and an electrolytic solution, wherein a capacity ratio of a negative electrode capacity of the negative electrode to a positive electrode capacity of the positive electrode (negative electrode capacity/positive electrode capacity) is 1 or lower, and the electrolytic solution contains dimethyl carbonate as a non-aqueous solvent at a content ratio of higher than 70% by volume with respect to a total amount of the non-aqueous solvent.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: March 23, 2021
    Assignee: Showa Denko Materials Co., Ltd.
    Inventor: Yuma Gogyo
  • Patent number: 10938061
    Abstract: Disclosed are electrochemical devices, such as lithium battery electrodes, lithium ion conducting solid state electrolytes, and solid-state lithium metal batteries including these electrodes and solid state electrolytes. In one embodiment, a method for forming an electrochemical device is disclosed in which a precursor electrolyte is heated to remove at least a portion of a resistive surface region of the precursor electrolyte.
    Type: Grant
    Filed: April 2, 2018
    Date of Patent: March 2, 2021
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Jeffrey Sakamoto, Travis Thompson, Asma Sharafi
  • Patent number: 10938022
    Abstract: A magnesium-ion battery includes a solid, mechanically flexible polymer-based anode, a solid, mechanically flexible polymer-based cathode, and a polymer gel electrolyte in contact with the anode and the cathode. An electrode can include bismuth nanostructure powder and an electrolyte binder, or tungsten disulfide and an electrolyte binder.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: March 2, 2021
    Assignee: Arizona Board of Regents on behalf of Arizona State University
    Inventors: Hongbin Yu, Todd Houghton
  • Patent number: 10910634
    Abstract: The present invention relates an electro-active polymeric ionic liquid including imidazolium-based molecules, said imidazolium-based molecule comprising each at least: —one imidazolium moiety associated with a negatively-charged counter-ion, and —one reducible group selected from: Formula (IV), —an anthraquinone derivative of formula (IV): with R1 representing a hydrogen atom or a C1-C6-alkyl group, —a viologen group, and —a metallocene reducible group such as a cobaltocene group.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: February 2, 2021
    Inventors: Ghilane Jalal, Gaëlle Trippe Allard, Van Bui Thi Tuyet, Hyacinthe Randriamahazaka, Thuan Nguyen Pham Truong
  • Patent number: 10886565
    Abstract: The present disclosure provides an electrolyte and an electrochemical energy storage device, the electrolyte comprises an electrolyte salt and an additive. The additive comprises a sulfonic ester cyclic quaternary ammonium salt and a multinitrile compound. The sulfonic ester cyclic quaternary ammonium salt and the multinitrile compound can form a dense and uniform passive film with high ionic conductivity on a surface of each of the positive electrode film and the negative electrode film, so as to prevent continuous oxidation and reduction reaction from occurring between the electrolyte and the positive electrode film and the negative electrode film and make the electrochemical energy storage device has excellent high temperature cycle performance and high temperature storage performance.
    Type: Grant
    Filed: July 3, 2018
    Date of Patent: January 5, 2021
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
    Inventors: Xiaomei Wang, Chenghua Fu, Changlong Han
  • Patent number: 10879540
    Abstract: The present invention provides a thin, bendable, printed, layered primary battery structure without a battery separator. The battery includes a first layer including a printed positive electrode. A second layer includes a negative electrode material which may be a printed negative electrode or a metal foil negative electrode. An adhesive, UV-curable intermediate layer is adhered to the first layer on a first side of the intermediate layer and is adhered to the second layer on a second side of the intermediate layer. The intermediate layer includes a water-soluble electroactive material and a water-soluble viscosity-regulating polymer in an amount sufficient to render the intermediate layer adhesive. The intermediate layer also includes a water-insoluble polymer matrix having sufficient rigidity to prevent contact of the first layer and the second layer. A flexible package encases the first, second, and intermediate layers.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: December 29, 2020
    Assignee: Nano and Advanced Materials Institute Limited
    Inventors: Hui Luo, Sara Abouali, Tao Xu, Li Fu, Soon Yee Liew, Yuechen Wang
  • Patent number: 10868335
    Abstract: Magnesium salts suitable for use in an electrolyte for a magnesium ion electrochemical cell are described herein. The salts are magnesium tetra(perfluoroalkoxy)metalates, optionally solvated with up to seven ether molecules coordinated to the magnesium ion thereof. In one embodiment, the salt has the empirical formula: Mg(Z)n2+[M(OCR3)4?]2 (Formula (I)) wherein Z is an ether; n is 0 to about 7; M is Al or B; and each R independently is a perfluoroalkyl group (e.g., C1 to C10 perfluoroalkyl). The magnesium salts of Formula (I) are suitable for use as electrolyte salts for magnesium ion batteries (e.g., 5 V class magnesium batteries) and exhibit a wide redox window that is particularly compatible with magnesium anode. The salts are relatively cost effective to prepare by methods described herein, which are conveniently scalable to levels suitable for commercial production.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: December 15, 2020
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Ka-Cheong Lau, Chen Liao
  • Patent number: 10862166
    Abstract: The present invention relates to a non-aqueous electrolyte solution for a lithium secondary battery, which includes a compound capable of suppressing an electrolyte solution side reaction in a high-temperature and high-voltage environment, and a lithium secondary battery in which cycle characteristics and stability are improved even during high-temperature and high-voltage charging by including the same.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: December 8, 2020
    Inventors: Sung Hoon Yu, Kyung Mi Lee, Shul Kee Kim, Hyun Yeong Lee, Yoo Sun Kang
  • Patent number: 10822498
    Abstract: The present disclosure relates to a carbon black dispersion solution comprising carbon black, a dispersion medium, and partially hydrogenated nitrile rubber having a residual double bond (RDB) value of 0.5% by weight to 40% by weight calculated according to the following Mathematical Formula 1, wherein dispersed particle diameters of the carbon black have particle size distribution D50 of 0.1 ?m to 2 ?m, a method for preparing the same, and methods for preparing electrode slurry and an electrode using the same.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: November 3, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Gyemin Kwon, Houngsik Yoo, Hye Lim Sim, Byoung Hoon Ahn, Jong Won Lee, Dong Hyun Kim, Sang Hoon Choy, Hyeon Choi
  • Patent number: 10818972
    Abstract: Provided is an electrolyte solution for a lithium secondary battery, which can lower the resistance of a lithium secondary battery and impart the lithium secondary battery with high cycle characteristics. The electrolyte solution for a lithium secondary battery disclosed here includes an electrolyte salt consisting essentially of a lithium imide salt, a solvent containing methyl difluoroacetate, and an unsaturated carboxylic acid anhydride compound represented by formula (1) below as an additive (in the formula, R1 and R2 each independently denote a hydrogen atom, a fluorine atom, or an alkyl group that may be fluorine-substituted, or R1 and R2 bond to each other to form a ring structure).
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: October 27, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiyuki Kawai, Hiroto Asano
  • Patent number: 10804568
    Abstract: There is provided a method of producing a lithium ion secondary battery. A positive electrode mixture layer is formed on a positive electrode current collector using an aqueous positive electrode mixture paste that includes a positive electrode active material including a lithium manganese composite oxide, and aqueous solvent, and additionally includes Li5FeO4 as an additive.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: October 13, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Yukiko Hori
  • Patent number: 10770753
    Abstract: The object of the present invention is to provide an electrolyte for a fluoride ion battery with high activity for fluoridating an active material. The present invention solves the problem by providing an electrolyte for a fluoride ion battery comprising a fluoride complex salt as at least one of LiPF6 and LiBF4, and an organic solvent; and B/A is 0.125 or more in the case where a substance amount of the organic solvent is regarded as A (mol) and a substance amount of the fluoride complex salt is regarded as B (mol).
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: September 8, 2020
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KYOTO UNIVERSITY
    Inventors: Hirofumi Nakamoto, Zempachi Ogumi, Takeshi Abe