Patents Examined by Barbara L. Gilliam
  • Patent number: 11223089
    Abstract: A heat-resistant multi-layer composite lithium-ion battery separator, and coating device and manufacturing method for same. The battery separator comprises a base membrane (12) having two end faces provided with a coating paste, and the end faces of the base membrane (12) are both adhered with a composite layer via the coating paste. The composite layer comprises one, two, or multiple composite films (13). The composite films (13) are adhered and fixed via the coating paste. The coating device is employed during the manufacturing, and comprises a base membrane uncoiling reel (1), a coating roller (2), a composite film uncoiling mechanism, a heating and drying mechanism, and a coiling reel (6). The coating roller (2) is arranged in a one-to-one correspondence to the composite film uncoiling mechanism, and two sets of the coating roller and the composite film uncoiling mechanism are provided on two sides of the base membrane (12).
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 11, 2022
    Assignee: HEBEI GELLEC NEW ENERGY MATERIAL SCIENCE & TECHNOLOGY CO., LTD.
    Inventors: Feng Xu, Haichao Yuan, Yunfei Deng, Wenxian Ma
  • Patent number: 11223069
    Abstract: A surface-treated steel sheet for battery cases is provided which comprises a nickel-cobalt alloy layer formed at the outermost surface of a plane to be an inner surface of a battery case, wherein a Co/Ni value at the surface of the nickel-cobalt alloy layer is within a range of 0.1 to 1.5 as determined by Auger electron spectroscopy analysis.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: January 11, 2022
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Tatsuo Tomomori, Eiji Yamane, Shinichirou Horie, Koh Yoshioka
  • Patent number: 11165112
    Abstract: A positive electrode for metal-air battery, comprising: a plurality of carbon nanotube films comprising a first carbon nanotube layer comprising a plurality of first carbon nanotubes; and a second carbon nanotube layer adjacent to the first carbon nanotube layer and comprising a plurality of second carbon nanotubes, wherein an alignment direction of the plurality of first carbon nanotubes in the first carbon nanotube layer and an alignment direction of the plurality of second carbon nanotubes in the second carbon nanotube layer are different from each other, and wherein an average specific tensile strength of the plurality of carbon nanotube films is greater than or equal to about 0.1 gigapascal per gram per cubic centimeter and less than or equal to about 1 gigapascal per gram per cubic centimeter.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: November 2, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Hyunjin Kim, Chongrae Park, Dongjoon Lee, Dongmin Im, Yeonsu Jung, Youngshik Cho, Minhoo Byeon
  • Patent number: 11145862
    Abstract: The positive electrode active substance for a lithium secondary battery includes a mixture of a titanium-containing lithium cobalt composite oxide particle and an inorganic fluoride particle. The method for producing a positive electrode active substance for a lithium secondary battery includes a first step of subjecting a titanium-containing lithium cobalt composite oxide particle and an inorganic fluoride particle to a mixing treatment to thereby obtain a mixture of the titanium-containing lithium cobalt composite oxide particle and the inorganic fluoride particle. The lithium secondary battery uses, as a positive electrode active substance, the positive electrode active substance for a lithium secondary battery of the present invention.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: October 12, 2021
    Assignee: NIPPON CHEMICAL INDUSTRIAL CO., LTD.
    Inventors: Masahiro Kikuchi, Tomonao Naruhashi, Minoru Fukuchi
  • Patent number: 11145924
    Abstract: A battery structure is disclosed. The battery structure includes a first current collector layer, a first active material layer, a spacer layer, a first plastic frame, a second active material layer and a second current collector layer. The first active material layer is disposed on the first current collector layer. The spacer layer is disposed on the first active material and completely covers the top surface of the first active material layer. The first plastic frame is disposed on the side wall of the spacer layer and the top of the first plastic frame has a protruding part which extends to the top surface of the spacer. The second active material layer is disposed on the spacer layer and the protruding part. The second active material is isolated from the first active material via the space layer and the protruding part. The second current collector layer is disposed on the second active material layer.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: October 12, 2021
    Assignees: PROLOGIUM TECHNOLOGY CO., LTD., PROLOGIUM HOLDING INC.
    Inventor: Szu-Nan Yang
  • Patent number: 11127981
    Abstract: Disclosed herein is a battery cell having an electrode assembly mounted in a battery case, the battery cell including an electrode assembly configured to have a stepped structure in which two or more electrodes or unit cells have different planar sizes and a battery case, wherein a receiving part of the battery case is provided on the inner surface thereof with at least one protrusion protruding toward the electrode assembly.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: September 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Seungmin Ryu, Ki Woong Kim, Dong-Myung Kim
  • Patent number: 11088429
    Abstract: A cap assembly and a secondary battery including the cap assembly including a cap-down, and at least a portion thereof is configured to open when pressure is applied to the cap-down, a vent portion, and at least a portion thereof is configured to open when pressure is applied to the vent portion, and a cap-up electrically connected to the vent portion.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: August 10, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Hyo Lee, Won-Il Jung, Yoon-Chang Kim
  • Patent number: 11081750
    Abstract: The present invention relates to a pouch type case having trimming portions formed on both sides or four corners thereof and a battery pack including the same. The trimming portions are formed on the corners of the pouch type case such that the trimming portions are indented toward an electrode assembly accommodating part to reduce a unit area so as to increase pressure applied to unit cells when a battery pack is assembled, thereby facilitating assembling of the battery pack and increasing cell capacity per unit area. Furthermore, the unit cells can be fixed in the battery pack more stably. The pouch type case reduces the unit area so as to include a relatively large number of cells for pressure applied to the cells when the battery pack is assembled to thereby increase the cell capacity.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: August 3, 2021
    Inventors: Hyo Seok Park, Young Joon Shin, Hyun Woo Park
  • Patent number: 11081721
    Abstract: A secondary electrochemical cell comprises an anode, a cathode including electrochemically active cathode material, a separator between the anode and the cathode, and an electrolyte. The electrolyte comprises at least one salt dissolved in at least one organic solvent. The separator in combination with the electrolyte has an area-specific resistance of less than about 2 ohm-cm2.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: August 3, 2021
    Assignee: DURACELL U.S. OPERATIONS, INC.
    Inventors: Nikolai Nikolaevich Issaev, Alexander Kaplan, Junan Kao, Kirakodu S. Nanjundaswamy, Michael Pozin, Fan Zhang
  • Patent number: 11059522
    Abstract: A vehicle (1) comprises a passenger compartment (2) in which a front seat (32F), a rear seat (32R), and a floor (33) between the front seat (32F) and the rear seat (38R) are provided. A first group (S1) of batteries (3) is mounted under the front seat (32F), a second group (S2) of the batteries (3) is mounted under the floor (33), and a third group (S3) of the batteries (3) is mounted under a rear seat (32R). By setting a height (h2) of the second group (S2) of the batteries (3) to be lower than respective heights (h1, h3) of the first and third groups (S1, S3) of the batteries (3), a battery mounting capacity of the vehicle (1) can be increased without affecting the comfort of the passenger compartment (2).
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: July 13, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Makoto Iwasa, Hidetoshi Kadota, Tadayoshi Hashimura, Shinya Ogata, Satoshi Shigematsu
  • Patent number: 11043700
    Abstract: Aspects of the present disclosure are directed toward a new and improved non-aqueous electrolyte rechargeable battery that is capable of suppressing or reducing non-uniformity of pressure during the manufacturing process, and thus suppressing or reducing a thickness increase during cycling, as well as a manufacturing method thereof. The present disclosure provides a non-aqueous electrolyte rechargeable battery including: an stacked electrode assembly in which electrodes and a separator are sequentially stacked; current collecting tabs attached to portions of some surfaces of the electrodes; and filling members positioned in vicinities of the current collecting tabs along the surface directions.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 22, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Atsushi Nishimoto, Yasuo Takano
  • Patent number: 11043678
    Abstract: Improved oxygen reduction reaction catalysts include octahedral nanoparticles of a platinum-copper-nickel alloy contacted by a secondary ionomer. The alloy can have a formula of Pt2CuNi, and the secondary ionomer can include an ionic liquid, 1-methyl-2,3,4,6,7,8-hexahydro-1H-pyrimido[1,2-a]pyrimidin-9-ium 1,1,2,2,3,3,4,4,4-nonafluorobutane-1-sulfonate ([MTBD][C4F9SO3]). The oxygen reductions catalysts have improved stability, as well as mass area and specific area comparted to competing catalysts.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: June 22, 2021
    Assignees: Toyota Motor Engineering & Manufacturing North America, Inc., Toyota Jidosha Kabushiki Kaisha, The University of Akron
    Inventors: Kan Huang, Li Q. Zhou, Hongfei Jia, Hisao Kato, Zhenmeng Peng, Xiaochen Shen
  • Patent number: 11038190
    Abstract: A membrane electrode assembly for a fuel cell that includes a membrane electrode unit with a membrane and two electrodes which make surface contact with both faces of the membrane. The membrane electrode assembly has a seal support that surrounds the periphery of the membrane and that overlaps the latter. The membrane electrode also has a connecting layer which continuously overlaps the membrane and the seal support, an inner edge section of the connecting layer being bonded to the membrane electrode unit and an outer edge section of the connecting layer being bonded to the seal support on the same flat face of the connecting layer. A seal is connected outside the membrane to the seal support. A fuel cell is provided that includes a plurality of membrane electrode assemblies. A motor vehicle includes the fuel cell and a method is provided for producing the membrane electrode assembly.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: June 15, 2021
    Assignee: Volkswagen Aktiengesellschaft
    Inventor: Benno Andreas-Schott
  • Patent number: 11034796
    Abstract: Provided are poly(arylamine)s. The polymers can be redox active. The polymers can be used as electrode materials in, for example, electrochemical energy storage systems. The polymers can be made by electropolymerization on a conducting substrate (e.g., a current collector).
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: June 15, 2021
    Assignee: CORNELL UNIVERSITY
    Inventors: Thanh-Tam Truong, Hector D. Abruna, Geoffrey W. Coates, Brett P. Fors
  • Patent number: 10998575
    Abstract: An inorganic solid electrolyte glass phase composite is provided comprising a substance of the general formula La2/3-xLi3xTiO3 wherein x ranges from about 0.04 to about 0.17, and a glass material. The glass material is one or more compounds selected from Li2O, Li2S, Li2SO4, Li3PO4, P2O5, P2O3, Al2O3, SiO2, CaO, MgO, BaO, TiO2, GeO2, SiS2, Sb2O3, SnS, TaS2, P2S5, B2S3, and a combination of two or more thereof. A lithium-ion conducting solid electrolyte composite is disclosed comprising a lithium-ion conductive substance of the general formula La2/3-xLi3xTiO3—Z wherein x ranges form about 0.04 to 0.17, and wherein “Z” is the glass material identified above. A battery is disclosed having at least one cathode and anode and an inorganic solid electrolyte glass phase composite as described above disposed on or between at least one of the cathode and the anode.
    Type: Grant
    Filed: September 17, 2014
    Date of Patent: May 4, 2021
    Assignee: West Virginia University
    Inventors: Hui Zhang, Xingbo Liu, Yinglu Jiang
  • Patent number: 10978763
    Abstract: An exemplary battery pack cover includes a polymer layer and a metallic layer grounded to a chassis of an electric vehicle. An exemplary method includes shielding battery cells of a battery pack against electromagnetic interference and thermal energy using a multilayer cover that is grounded to a chassis of an electrified vehicle.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: April 13, 2021
    Assignee: Ford Global Technologies, LLC
    Inventor: Hyung Min Baek
  • Patent number: 10971713
    Abstract: An electric storage device includes: an electrode assembly including a positive electrode plate and a negative electrode plate that are insulated from each other; a pair of current collectors each of which includes a connecting portion and is connected to a corresponding one of the positive electrode plate and the negative electrode plate at the connecting portion; a case that houses the electrode assembly and the pair of current collectors, the electrode assembly being supported by the pair of current collectors in the case; and a distance retaining member that retains a distance between portions more distal than the respective connecting portions of the pair of current collectors.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 6, 2021
    Assignees: GS YUASA INTERNATIONAL LTD., HONDA MOTOR CO., LTD.
    Inventors: Nobuyuki Naganawa, Tomonori Kishimoto, Masamitsu Tononishi, Shinsuke Yoshitake, Yasunori Okuno
  • Patent number: 10944121
    Abstract: The present invention provides a polymer electrolyte membrane having excellent strength, a small dimensional change, and a low membrane resistance. The polymer electrolyte membrane includes a porous film having pores and a polymer electrolyte contained in the pores. The porous film is obtained by copolymerizing tetrafluoroethylene and an ethylenic comonomer to provide polytetrafluoroethylene and then stretching the polytetrafluoroethylene. The porous film has an average pore size of greater than 0.20 ?m.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: March 9, 2021
    Assignees: ASAHI KASEI KABUSHIKI KAISHA, DAIKIN INDUSTRIES, LTD.
    Inventors: Yuichi Inoue, Kuon Miyazaki, Kentaro Kikuchi, Nobuki Uraoka, Shinichi Chaen, Tomohisa Konishi, Tadashi Ino
  • Patent number: 10937999
    Abstract: In the case where a secondary battery is repetitively curved, portions which tend to cause deterioration such as crack or breakage are, for example, a positive electrode tab and a negative electrode tab. This is because these portions are narrow projected portions, and tend to have low mechanical strength against repetitive curving in some cases. In view of the above, the positive electrode tab and the negative electrode tab are provided in portions relatively less affected by curving. More specifically, secondary battery includes a positive electrode, a positive electrode lead electrically connected to the positive electrode, a negative electrode, a negative electrode lead electrically connected to the negative electrode, a separator, and an exterior body wrapping the positive electrode, the negative electrode, and the separator. The positive electrode, the separator, the negative electrode, and the exterior body can be curved in a first direction.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: March 2, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Minoru Takahashi, Junpei Momo, Ryota Tajima
  • Patent number: 10930980
    Abstract: An additive formulation for a lithium ion battery is provided, which includes an ionic conductor and a compound having a maleimide structure. An electrode slurry composition is also provided, which includes an active material, a conductive additive, an adhesive, and an additive formulation containing an ionic conductor and a compound having a maleimide structure modified by a compound having a barbituric acid structure.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: February 23, 2021
    Assignee: Industrial Technology Research Institute
    Inventors: Yu-Han Li, Li-Chun Chen, Ming-Yi Lu, Jen-Chih Lo, Guan-Lin Lai, Chang-Rung Yang, Jung-Mu Hsu