Patents Examined by Laura Weiner
  • Lithium-ion battery and apparatus
    Patent number: 11239500
    Abstract: This application provides a lithium-ion battery and an apparatus. The lithium-ion battery includes an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. A positive active material of the positive electrode plate includes Lix1Coy1M1-y1O2-z1Qz1, where 0.5?x1?1.2, 0.8?y1<1.0, 0?z1?0.1, M is selected from one or more of Al, Ti, Zr, Y, and Mg, and Q is selected from one or more of F, Cl, and S. The electrolyte contains an additive A, an additive B, and an additive C. The additive A is a polynitrile six-membered nitrogen-heterocyclic compound with a relatively low oxidation potential. The additive B is a silyl phosphite compound or a silyl phosphate compound or a mixture thereof. The additive C is a halogen substituted cyclic carbonate compound.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: February 1, 2022
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Shushi Dou, Chunhua Hu, Tiancheng Yi, Yao Jiang, Chengdu Liang
  • Cathode of lithium ion battery
    Patent number: 11228028
    Abstract: A cathode of a lithium ion battery is provided. The cathode of a lithium ion battery includes a collector material. A first electrode layer including a lithium manganese iron phosphate (LMFP) material is disposed on a surface of the collector material. A second electrode layer including an active material is disposed on the first electrode layer. The active material includes lithium nickel manganese cobalt oxide (NMC), lithium nickel cobalt aluminum oxide (NCA), lithium cobalt oxide (LCO), Li-rich cathode material, or a combination thereof.
    Type: Grant
    Filed: December 24, 2018
    Date of Patent: January 18, 2022
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chia-Ming Chang, Shih-Chieh Liao, Dar-Jen Liu, Wen-Bing Chu, Jin-Ming Chen
  • Lithium battery
    Patent number: 11223044
    Abstract: A lithium battery includes a cathode including a cathode active material; an anode including an anode active material; and an organic electrolytic solution between the cathode and the anode, wherein the anode active material includes natural graphite and artificial graphite, an amount of the artificial graphite being about 50 wt % or more based on a total weight of the anode active material, and the organic electrolytic solution includes: a first lithium salt; an organic solvent; and a bicyclic sulfate-based compound represented by Formula 1 below: wherein, in Formula 1, each of A1, A2, A3, and A4 is independently a covalent bond, a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl group, in which both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: January 11, 2022
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Miyoung Son, Kyoungsoo Kim, Yunhee Kim, Jaehong Kim, Hana Ra, Suyeol Ryu, Myunghwan Jeong, Sunjoo Choi, Myungheui Woo, Seungtae Lee, Harim Lee, Siyoung Cha
  • Composite cathode active material and secondary battery including the same
    Patent number: 11217785
    Abstract: A composite cathode active material including: a core particle; a first coating layer; and a second coating layer; wherein the core particle includes a cathode active material, the first and second coating layers cover a surface of the core particle, the first coating layer includes a first lithium-containing compound, wherein the first lithium-containing compound includes zirconium, niobium, titanium, aluminum, or a combination thereof, the second coating layer includes a second lithium-containing compound, wherein the second lithium-containing compound includes germanium, niobium, gallium, or a combination thereof, and the first lithium-containing compound is different from the second lithium-containing compound.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: January 4, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seitaro Ito, Tomoyuki Shiratsuchi, Yuichi Aihara, Tomoyuki Tsujimura
  • Positive electrode active material containing lithium composite oxide and covering material, and battery including positive electrode active material
    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
  • Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery including the same
    Patent number: 11183711
    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, the electrolyte solution includes a lithium salt, an organic solvent, a compound represented by Formula 1 as a first additive, lithium difluorophosphate (LiDFP) as a second additive, wherein the first additive and the second additive are each independently included in an amount of 0.01 wt % to 8.5 wt % based on a total amount of the non-aqueous electrolyte solution. The first additive has metal ion adsorbability and is capable of forming a stable ion conductive film on the surface of an electrode, and a lithium secondary battery in which an abnormal voltage drop phenomenon is improved by including the same.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: November 23, 2021
    Inventors: Sung Hoon Yu, Chul Haeng Lee, Hyun Seung Kim
  • Lithium-ion battery and apparatus
    Patent number: 11177508
    Abstract: The present application provides a lithium-ion battery and an apparatus, the lithium-ion battery includes an electrode assembly and an electrolyte, the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separator. A positive active material of the positive electrode sheet includes both Lix1Coy1M11-y1O2-aQ1a and LilNim1Con1M2pM3qO2-bQ2b, a mass ratio of Lix1Coy1M11-y1O2-aQ1a and LilNim1Con1M2pM3qO2-bQ2b is 1:1-9:1. The electrolyte contains an additive A, the additive A is a six-membered nitrogen heterocyclic compound with multiple nitrile groups and with low oxidation potential. The lithium-ion battery according to the present application has excellent cycle performance and storage performance, especially under high temperature and high voltage conditions.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: November 16, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Yao Jiang, Chunhua Hu, Tiancheng Yi, Shushi Dou, Chengdu Liang
  • Anode materials for lithium ion batteries and methods of making and using same
    Patent number: 11177471
    Abstract: An electrochemically active material includes a silicon alloy material having the formula: SiwM1xCyOz, where w, x, y, and z represent atomic % values and w+x+y+z=1; M1 comprises a transition metal; w>0; x>0; y?0; and z?0. The electrochemically active material also includes a metal-based material having the formula: M2aObAc, where a, b, and c represent atomic % values and a+b+c=1; M2 comprises a metal; A is an anion; a>0; b?0; and c?0.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 16, 2021
    Assignee: JOHNSON MATTHEY PUBLIC COMPANY LIMITED
    Inventor: Fuxia Sun
  • Positive electrode active material containing lithium composite oxide and covering material and battery
    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
  • Lithium-ion battery and apparatus
    Patent number: 11152643
    Abstract: The present application provides a lithium-ion battery and an apparatus, the lithium-ion battery includes an electrode assembly and an electrolyte, the electrode assembly includes a positive electrode sheet, a negative electrode sheet and a separator. A positive active material of the positive electrode sheet includes both Lix1Coy1M11-y1O2-aQ1a and LilNim1Con1M2pM3qO2-bQ2b, a mass ratio of Lix1Coy1M11-y1O2-aQ1a and LilNim1Con1M2pM3qO2-bQ2b is 1:1-9:1. The electrolyte contains an additive A, the additive A is a six-membered nitrogen heterocyclic compound with multiple nitrile groups and with low oxidation potential. The lithium-ion battery according to the present application has excellent cycle performance and storage performance, especially under high temperature and high voltage conditions.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: October 19, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Yao Jiang, Chunhua Hu, Tiancheng Yi, Shushi Dou, Chengdu Liang
  • Lithium battery
    Patent number: 11145900
    Abstract: A lithium battery includes a cathode including a cathode active material an anode including an anode active material and an organic electrolytic solution between the cathode and the anode, wherein the cathode includes a carbonaceous nanostructure, and the organic electrolytic solution includes a first lithium salt, an organic solvent, and a bicyclic sulfate-based compound represented by Formula 1 below: wherein, in Formula 1, each of A1, A2, A3, and A4 is independently a covalent bond, a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl group, in which both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: October 12, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Miyoung Son, Kyoungsoo Kim, Yunhee Kim, Jaehong Kim, Hana Ra, Suyeol Ryu, Myunghwan Jeong, Sunjoo Choi, Myungheui Woo, Seungtae Lee, Harim Lee, Siyoung Cha
  • Fluorinated acrylates as additives for Li-ion battery electrolytes
    Patent number: 11133529
    Abstract: A compound of formula (I) for use in electrolyte compositions for electrochemical cells, wherein R1 and R2 are selected independently from each other from H, F, CN, R?, OR?, OC(O)R?, and OP(O)R?2, R3 is selected from H, C1 to C12 alkyl, C3 to C6 (hetero)cycloalkyl, C2 to C12 alkenyl, C2 to C12 alkynyl, C5 to C12 (hetero)aryl, and C6 to C24 (hetero)aralkyl, R4 is selected from C1 to C12 alkyl, C3 to C6 (hetero)cycloalkyl, C2 to C12 alkenyl, C2 to C12 alkynyl, C5 to C12 (hetero)aryl, and C6 to C24 (hetero)aralkyl, or R3 and R4 are bound together and form together with the group —C—C(O)—O— a 5- to 6-membered heterocycle which may be substituted by one or more substituents selected from F and optionally fluorinated C1 to C12 alkyl.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: September 28, 2021
    Assignee: Gotion, Inc.
    Inventors: Frank Juergen, Stefano Meini, Michael Schmidt, Martin Merger
  • Organic electrolytic solution and lithium battery including the same
    Patent number: 11127978
    Abstract: An organic electrolytic solution, including a first lithium salt, an organic solvent, and a bicyclic sulfate-based compound represented by Formula 1 below: wherein, in Formula 1, each of A1, A2, A3, and A4 is independently a covalent bond, a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl group, wherein both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: September 21, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: MiYoung Son, MyungHeui Woo, SiYoung Cha, MinJu Lee, SeungTae Lee, HaRim Lee, WooCheol Shin
  • Electrolyte and battery
    Patent number: 11121406
    Abstract: This application provides an electrolyte and a battery. The electrolyte comprises an electrolytic salt and an organic solvent comprising a cyclic carbonate and a chain carbonate. The electrolyte further comprises an additive A and an additive B, wherein the additive A is a positive-electrode film-forming additive, the additive B is a negative-electrode film-forming additive, and the reduction potential of the additive B is higher than that of the cyclic carbonate, and the electrolyte has a conductivity of 6 mS/cm to 10 mS/cm at 25° C. The electrolyte of the present application can improve the cycle performance and storage performance of the battery, in particular, improve the cycle performance and storage performance of the battery under high temperature and high voltage conditions, and at the same time balance the low-temperature performance of the battery.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: September 14, 2021
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Shushi Dou, Chunhua Hu, Tiancheng Yi, Zijun Xu, Chengdu Liang
  • Lithium battery
    Patent number: 11114694
    Abstract: A lithium battery includes a cathode including a cathode active material, an anode including an anode active material, and an organic electrolytic solution between the cathode and the anode. The organic electrolytic solution includes a first lithium salt, an organic solvent, an oligomer compound, and a bicyclic sulfate-based compound represented by Formula 1 below: wherein, in Formula 1, each of A1, A2, A3, and A4 is independently a covalent bond, a substituted or unsubstituted C1-C5 alkylene group, a carbonyl group, or a sulfinyl group, in which both A1 and A2 are not a covalent bond and both A3 and A4 are not a covalent bond.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: September 7, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Miyoung Son, Kyoungsoo Kim, Yunhee Kim, Jaehong Kim, Hana Ra, Suyeol Ryu, Myunghwan Jeong, Sunjoo Choi, Myungheui Woo, Seungtae Lee, Harim Lee, Siyoung Cha
  • Electrolyte for high voltage lithium-ion batteries
    Patent number: 11108086
    Abstract: An electrolyte, electrochemical device, battery, capacitor, and/or the like include a salt; and a fluorinated organosulfate compound represented by Formula I: wherein, R1 is H, OR3, alkyl, alkenyl, alkynyl, aralkyl, or silyl; R2 is H, OR3, alkyl, alkenyl, alkynyl, aralkyl, or silyl; and R3 is H, alkyl, alkenyl, alkynyl, aryl, heterocyclyl, heteroaryl, or siloxy; or where R1 and R2 join together to form a cyclic compound incorporating the —O—S(O)2—O— group; wherein at least one R1 and R2 is fluorinated.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: August 31, 2021
    Assignee: UChicago Argonne, LLC
    Inventors: Khalil Amine, Chi Cheung Su, Meinan He, Tianyuan Ma
  • Nonaqueous electrolyte secondary battery negative electrode, binder for nonaqueous electrolyte secondary battery negative electrode, and nonaqueous electrolyte secondary battery
    Patent number: 11101464
    Abstract: A negative electrode for a nonaqueous electrolyte secondary battery having improved life characteristics, a binder for a negative electrode of a nonaqueous electrolyte secondary battery, and a nonaqueous electrolyte secondary battery. The negative electrode for a nonaqueous electrolyte secondary battery according to an embodiment includes a current collector, and a mixture layer formed on the current collector and having an active material and a binder. In the binder, an intermolecular chain network in which crosslinking by irreversible bonding and crosslinking by reversible bonding are mixed is formed. For example, a crosslinking treatment is applied to the binder. At this time, by performing crosslinking by reversible bonding and irreversible bonding, crosslinking unevenness is more suppressed, and local concentration of loads on the binder is more suppressed.
    Type: Grant
    Filed: October 24, 2018
    Date of Patent: August 24, 2021
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventor: Hitoshi Kurihara
  • Polysiloxane binders
    Patent number: 11094933
    Abstract: Electrodes for rechargeable batteries that include silicon and a binder are provided. Binders for use with silicon electrodes are provided, including polysiloxane binders that can be prepared prior to preparation of the electrode, or provided as monomers to be cure-polymerized at the time of the curing of the electrode.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: August 17, 2021
    Assignee: University of Kentucky Research Foundation
    Inventors: Susan A. Odom, Darius A Shariaty, Yang-Tse Cheng
  • Electrolyte formulations for electrochemical device
    Patent number: 11088396
    Abstract: A battery device is disclosed that includes an ionically conducting electrolyte comprising a mixture of a compressed gas solvent and one or more solid or liquid salts, wherein the compressed gas solvent comprises at least a first component that has a vapor pressure above 100 kPa at a room temperature of 293.15 K. The device also includes a housing enclosing the ionically conducting electrolyte under a pressurized condition to maintain the compressed gas solvent at a pressure higher than 100 kPa at a room temperature of 293.15 K. The device also includes at least two conducting electrodes in contact with the ionically conducting electrolyte.
    Type: Grant
    Filed: August 30, 2020
    Date of Patent: August 10, 2021
    Assignee: SOUTH 8 TECHNOLOGIES, INC.
    Inventors: Cyrus Sam Rustomji, Jungwoo Lee, James Royer
  • Cathode active material containing boron and carbon, and magnesium secondary battery using the same
    Patent number: 11081698
    Abstract: A cathode active material for magnesium secondary batteries includes a material containing magnesium, boron, and carbon. The material has a layered structure.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: August 3, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Go Tei, Toshiro Kume, Akira Kano