Patents Examined by Laura Weiner
  • Zinc battery electrolyte additive
    Patent number: 11424484
    Abstract: An electrolyte additive is provided. The additive is a quaternary ammonium or phosphonium salt effective to suppress hydrogen evolution and metal dendrite formation during operation of a zinc electrochemical cell such as a zinc-air battery. A zinc battery cell is also provided, which contains an effective amount of the electrolyte additive.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: August 23, 2022
    Assignee: Octet Scientific, Inc.
    Inventor: Onas Bolton
  • Lithium-ion batteries
    Patent number: 11404717
    Abstract: Systems and methods which provide lithium-ion battery configurations with high energy density are disclosed. Embodiments provide lithium-ion batteries comprising an anode that includes 30 to 85 wt. % silicon, thereby facilitating high energy density and high N:P ratio for the lithium-ion batteries. The high N:P ratio further enables fast charging and low temperature charging capabilities of the lithium-ion batteries.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: August 2, 2022
    Assignee: Techtronic Cordless GP
    Inventors: Denis Gaston Fauteux, Aditya Subramanian
  • Secondary aqueous battery electrodes including vinyl acetate-ethylene
    Patent number: 11404696
    Abstract: A green secondary electrode includes a conductive substrate, active material and material additives in direct contact with the conductive substrate, and a combination of vinyl acetate-ethylene and methylcellulose-based additive binding the conductive substrate, active materials, and material additives together. The green secondary electrode may be a positive electrode or a negative electrode.
    Type: Grant
    Filed: January 5, 2022
    Date of Patent: August 2, 2022
    Assignee: ZAF ENERGY SYSTEMS, INCORPORATED
    Inventors: Hannah S. Smith, Melissa D. McIntyre, Adam Weisenstein, Andrew F. Souder, II
  • Specific negative electrode based on lithium and lithium electrochemical generator comprising such a negative electrode
    Patent number: 11398625
    Abstract: A negative electrode for a lithium electrochemical generator, wherein it comprises, as active material, a lithium and calcium alloy, wherein the calcium is present in the alloy to the extent of 2% to 34% of atomic.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: July 26, 2022
    Assignee: COMMISSARIAT Á L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Benoît Chavillon, Philippe Azais, Eric Mayousse
  • Magnesium sulfide material, magnesium sulfide composite material, positive electrode member for secondary batteries, wide band gap semiconductor material, magnesium secondary battery, and method for producing zinc blende magnesium sulfide
    Patent number: 11394027
    Abstract: Provided is a magnesium secondary battery including a positive electrode member 23 including at least a positive electrode active material layer 23B, a separator 24 disposed facing the positive electrode member 23, a negative electrode member 25 containing magnesium or a magnesium compound disposed facing the separator 24, and an electrolytic solution containing a magnesium salt. The positive electrode active material layer 23B includes magnesium sulfide having a zinc blende type crystal structure.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: July 19, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuhiro Kamiguchi, Ryuhei Matsumoto, Kiyoshi Kumagae, Shizuka Hosoi, Yuri Nakayama
  • Negative electrode and zinc secondary battery
    Patent number: 11387446
    Abstract: Provided is a negative electrode for use in a zinc secondary battery containing (A) ZnO particles and (B) at least two selected from the group consisting of (i) metallic Zn particles having an average particle size D50 of 5 to 80 ?m, (ii) at least one metal element selected from In and Bi, and (iii) a binder resin having a hydroxyl group.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: July 12, 2022
    Assignee: NGK Insulators, Ltd.
    Inventors: Hiroshi Hayashi, Naomi Saito, Eri Asano, Hiroshi Matsubayashi
  • Positive electrode active material for sodium ion secondary battery
    Patent number: 11387455
    Abstract: Provided is a Ni-based positive electrode active material for a sodium ion secondary battery having an excellent discharge capacity. A positive electrode active material for a sodium ion secondary battery, the positive electrode active material being composed of crystals represented by a general formula Nax (Ni1?aMa) yP2Oz (where M represents at least one transition metal element selected from the group consisting of Fe, Cr, Mn, and Co and the following are satisfied: 0.6?x?4, 0.3?y?2.7, 0?a?0.9, and 6?z<7.5).
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: July 12, 2022
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventor: Hideo Yamauchi
  • Additive for nonaqueous electrolyte solutions, nonaqueous electrolyte solution, and electricity storage device
    Patent number: 11387490
    Abstract: Disclosed is an additive for nonaqueous electrolyte solutions, which includes a compound represented by the following formula (1): in the formula (1), Q represents an optionally substituted alkenylene group having 4 to 7 carbon atoms and forming a cyclic group together with the sulfur atom of the sulfonyl group, X represents a sulfonyl group, a phosphoryl group, or a carbonyl group, R1 represents an optionally substituted alkyl group having 1 to 4 carbon atoms or the like, and n represents 1 or 2.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: July 12, 2022
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Yuki Kono, Shohei Fujimoto, Yasuyuki Takai, Koji Fujita
  • Electrolytic solution, electrochemical device, secondary cell, and module
    Patent number: 11374259
    Abstract: An electrolyte solution contains tris(trimethylsilyl) phosphite and at least one fluorinated saturated cyclic carbonate (1) selected from pentafluoropropylethylene carbonate and heptafluoroisobutylethylene carbonate. Also disclosed is an electrochemical device including the electrolyte solution.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: June 28, 2022
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Tomoya Hidaka, Kenzou Takahashi, Masakazu Kinoshita, Shigeaki Yamazaki
  • Lithium-ion secondary battery
    Patent number: 11374221
    Abstract: A lithium-ion secondary battery including a cathode, an anode, and an electrolyte, in which the lithium-ion secondary battery includes inorganic phosphate particles, and the cathode includes cathode active material particles which include central particles made of LixAyMzPO4 (0?x?1.1, 0.8?y?1.1, and 0?z?0.2; here, A represents at least one element selected from the group consisting of Fe, Mn, Co, and Ni, and M represents at least one element selected from the group consisting of Mg, Ca, Co, Sr, Ba, Ti, Zn, B, Al, Ga, In, Si, Ge, and rare earth elements) and a carbonaceous film that coats surfaces of the central particles.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: June 28, 2022
    Assignee: SUMITOMO METAL MINING CO., LTD.
    Inventors: Masataka Oyama, Takao Kitagawa
  • Nonaqueous electrolyte for secondary battery and nonaqueous-electrolyte secondary battery employing the same
    Patent number: 11367899
    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: September 5, 2019
    Date of Patent: June 21, 2022
    Assignees: Mitsubishi Chemical Corporation, MU IONIC SOLUTIONS CORPORATION
    Inventors: Hiroyuki Tokuda, Minoru Kotato, Shinichi Kinoshita
  • Cathode active materials for lithium-ion batteries
    Patent number: 11362331
    Abstract: Compounds, powders, and cathode active materials that can be used in lithium ion batteries are described herein. Methods of making such compounds, powders, and cathode active materials are described.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: June 14, 2022
    Assignee: Apple Inc.
    Inventors: Hongli Dai, Akshaya K. Padhi, Huiming Wu, Dapeng Wang, Christopher S. Johnson, John David Carter, Martin Bettge, Ana Kircova, Chi-Kai Lin, YoungHo Shin, Xiaoping Wang
  • Electrical energy storage device and a method of preparing the same
    Patent number: 11362367
    Abstract: An electrical energy storage device and a method of forming such electrical energy storage device. The electrical energy storage device includes an electrolyte that is arranged to dissipate energy when subjected to external mechanical load applied to the electrical energy storage device. The electrolyte includes a polymer matrix of at least two crosslinked structures, including a first polymeric material and a second polymeric material; and an electrolytic solution retained by the polymer matrix.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: June 14, 2022
    Assignee: City University of Hong Kong
    Inventors: Chunyi Zhi, Zhuoxin Liu, Hongfei Li, Zijie Tang
  • Nonaqueous electrolyte compositions
    Patent number: 11362368
    Abstract: Electrolyte compositions containing a solvent, a co-solvent, certain cyclic carboxylic acid anhydride additives, certain phosphorus-containing additives, and an electrolyte salt are described. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries where they provide significantly improved cycle life with no loss of discharge capacity.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: June 14, 2022
    Assignee: Solvay SA
    Inventors: Charles J. Dubois, George K. Kodokian
  • Nonaqueous electrolyte battery, battery pack and positive electrode
    Patent number: 11362398
    Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode, a nonaqueous electrolyte and a separator. The positive electrode includes a positive electrode active material containing LixNi1-a-bCoaMnbMcO2 (0.9<x?1.25, 0<a?0.4, 0?b?0.45, 0?c?0.1, and M represents at least one element selected from the group consisting of Mg, Al, Si, Ti, Zn, Zr, Ca, and Sn). The separator includes polyester. A pore volume in a pore size distribution according to a mercury intrusion porosimetry is in a range of 0.9 cm3/g to 3 cm3/g. An air permeability value according to a Gurley method is in a range of 2 sec/100 ml to 15 sec/100 ml.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: June 14, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hidesato Saruwatari, Masataka Shikota, Dai Yamamoto, Genki Yamagishi
  • Battery having hybrid cathode configuration
    Patent number: 11362316
    Abstract: Batteries having hybrid electrode configurations are disclosed herein. In one embodiment, a battery comprises an electrode assembly. The electrode assembly comprises a first cathode including a first cathode active material, a second cathode including a second cathode active material different from the first cathode active material, a first anode disposed between the first cathode and the second cathode, a first separator interposed between the first cathode and the first anode, and a second separator interposed between the second cathode and the first anode.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: June 14, 2022
    Assignee: Pacesetter, Inc.
    Inventor: Xiaofei Jiang
  • Air electrode for air secondary battery and air secondary battery
    Patent number: 11355751
    Abstract: A battery includes an electrode group including an air electrode and a negative electrode stacked with a separator therebetween, and a battery case accommodating the electrode group along with an alkali electrolyte solution, wherein the air electrode includes an air electrode mixture containing a pyrochlore-type composite oxide and a manganese oxide, and the pyrochlore-type composite oxide is a bismuth-ruthenium oxide.
    Type: Grant
    Filed: October 28, 2019
    Date of Patent: June 7, 2022
    Assignee: FDK CORPORATION
    Inventors: Takeshi Kajiwara, Shohei Unoki, Takahiro Endo
  • Anodeless lithium metal battery and method of manufacturing the same
    Patent number: 11355778
    Abstract: An anodeless lithium metal battery includes: a cathode including a cathode current collector and a cathode active material layer on the cathode current collector; an anode current collector on the cathode; a composite electrolyte between the cathode and the anode current collector, wherein the composite electrolyte, wherein the composite electrolyte includes a first liquid electrolyte and a metal comprising at least one of a lithium metal and a lithium metal alloy; and a liquid-impermeable ion-conductive composite membrane between the cathode and the composite electrolyte.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: June 7, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Wonseok Chang, Hyorang Kang, Jirae Kim
  • Anodeless lithium metal battery and method of manufacturing the same
    Patent number: 11349148
    Abstract: An anodeless lithium metal battery includes: a cathode including a cathode current collector and a cathode active material layer on the cathode current collector; an anode current collector on the cathode; and a composite electrolyte between the cathode and the anode current collector, wherein the composite electrolyte includes a first liquid electrolyte and at least one of lithium metal or a lithium metal alloy.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: May 31, 2022
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Wonseok Chang, Hyorang Kang, Soyeon Kim, Jirai Kim, Toshinori Sugimoto, Yonggun Lee, Dongmin Im, Shintaro Kitajima
  • Lithium battery
    Patent number: 11335952
    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 organic electrolytic solution includes a first lithium salt, a second 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. The second lithium salt includes at least one selected from LiCF3SO3, Li(CF3SO2)2N, LiC4F9SO3, Li(FSO2)2N, and LiN(CxF2x+1SO2)(CyF2y+1SO2) where 2?x?20 and 2?y?20.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 17, 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