Patents Examined by Jonathan G Jelsma
  • Patent number: 12215224
    Abstract: An unsaturated polyester resin composition includes an unsaturated polyester, a polymerizable monomer, a low shrinkage agent, aluminum hydroxide, and an electrically conductive filler. The unsaturated polyester is a polymerization product of a polybasic acid including a polybasic acid having an ethylenically unsaturated double bond at a predetermined ratio and a polyhydric alcohol. A polyvinyl acetate as the low shrinkage agent is included at a predetermined ratio with respect to the total amount of the unsaturated polyester, the polymerizable monomer, and the low shrinkage agent. The aluminum hydroxide is included at a predetermined ratio with respect to the total amount of the unsaturated polyester, the polymerizable monomer, and the low shrinkage agent.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: February 4, 2025
    Assignee: JAPAN COMPOSITE CO., LTD.
    Inventors: Ikuo Akai, Masahiro Hakotani, Takashi Tsukamoto
  • Patent number: 12211973
    Abstract: The present disclosure provides a technology for preventing detachment of a collector bundle or a collector terminal derived from collector breakage. A wound electrode body of the secondary battery disclosed herein includes: a core portion in which electrode mix layers of electrode sheets face each other; a collector wound portion resulting from winding of uncoated portions of the electrode sheets; and a collector bundle which is formed in a partial region of the collector wound portion, and to which a collector terminal is connected. Furthermore, in the wound electrode body, an elongated slit is formed running through the collector wound portion, and extending continuously so as to conform to the collector bundle, between the collector bundle and the core portion. In consequence it becomes possible to prevent large breaks such that the collector bundle or the collector terminal comes off.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: January 28, 2025
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventor: Yasuhiro Sakashita
  • Patent number: 12206130
    Abstract: Provided are a composite separator including a coating layer including inorganic particles and a binder formed on a porous substrate, which has improved coatability and improved thermal shrinkage, and a lithium secondary battery using the same.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: January 21, 2025
    Assignees: SK Innovation Co., Ltd., SK ie technology Co., Ltd.
    Inventors: Sun Young Kim, Tae Wook Kwon, Heung Taek Bae, Dong Gun Lee, Yun Bong Kim, Min Kyung Seon
  • Patent number: 12191517
    Abstract: The present application provides a battery box, including a battery and an electronic device electrically connected to the battery. The battery box further includes a lower box body, including a first box part and a second box part, where the second box part is integrally connected to the first box part; a first top cover, hermetically and removably mounted in a height direction above the first box part and forming a sealed first space with the first box part, where the first space accommodates the battery; and a second top cover, hermetically and removably mounted in the height direction above the second box part and forming a sealed second space with the second box part, where the second space accommodates the electronic device electrically connected to the battery, and the second top cover is disposed independent of the first top cover.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: January 7, 2025
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Liwen Jiang, Wumei Fang
  • Patent number: 12191512
    Abstract: This application provides a battery module, including a plurality of batteries, a first enclosing plate, and a second enclosing plate. The first enclosing plate includes a first side plate, a first front plate containing a first connecting hole, and a first rear plate containing a third connecting hole. The second enclosing plate includes a second side plate, a second front plate containing a second connecting hole, and a second rear plate containing a fourth connecting hole. The first connecting hole and the second connecting hole are fixedly connected to the first front plate and the second front plate by the fasteners. The third connecting hole and the fourth connecting hole are fixedly connected to the first rear plate and the second rear plate by the fasteners. Both the first enclosing plate and the second enclosing plate form a semi-enclosure structure, and tightly enclose the plurality of batteries.
    Type: Grant
    Filed: June 21, 2021
    Date of Patent: January 7, 2025
    Assignee: CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED
    Inventors: Wenqiang Huang, Xingyuan Wu
  • Patent number: 12183869
    Abstract: Various embodiments of the present invention relate to a secondary battery, and the objective of the present invention is to provide a secondary battery, which has drop-impact resistance, by providing an electrode assembly having a relatively thick inner circumferential and a relatively thin outer circumferential tab. To this end, disclosed is a secondary battery, which comprises an electrode assembly comprising: an anode plate having an inner circumferential tab formed at a wound front end thereof; a separator covering the anode plate; and a cathode plate having an outer circumferential tab formed at a wound distal end thereof.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: December 31, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Soo Mi Eo, Seung Hee Park, Jea Woan Lee, Jae Min Lim, Euy Sun Jung, Kyung Hoon Cho, Young Kwang Cho, Kyeong Yi Heo
  • Patent number: 12183921
    Abstract: Provided herein are positive electrode active substance particles comprising a lithium nickelate composite oxide which have a high energy density and are excellent in repeated charge/discharge cycle characteristics when charging at a high voltage, as well as a non-aqueous electrolyte secondary battery. The positive electrode active substance particles herein can each comprise a core particle X comprising a lithium nickelate composite oxide having a layer structure which is represented by the formula: Li1+aNi1-b-cCObMcO2, as defined herein; and a coating compound Y comprising at least one element selected from the group consisting of Al, Mg, Zr, Ti and Si and having an average film thickness of 0.2 to 5 nm, in which a crystal phase having a layered rock salt structure and comprising Ni2+ ions is present in the form of a layer between the core particle X and the coating compound Y.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: December 31, 2024
    Assignee: TODA KOGYO CORP.
    Inventors: Hiroyasu Watanabe, Xiang Sun, Mitchell Fetterer
  • Patent number: 12180088
    Abstract: The present invention provides a positive electrode active material for a secondary battery, which includes a lithium transition metal oxide including nickel (Ni) and cobalt (Co), and at least one selected from the group consisting of aluminum (Al), manganese (Mn), and a combination thereof. The lithium transition metal oxide is characterized in that the content of nickel (Ni) in the total transition metal elements is 80 mol % or more, and the cation mixing ratio of Ni cations in a lithium layer in the lithium transition metal oxide structure is 1.1% or less.
    Type: Grant
    Filed: March 8, 2022
    Date of Patent: December 31, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Ji Hye Kim, Byung Chun Park, So Ra Baek, Tae Gu Yoo, Wang Mo Jung
  • Patent number: 12176555
    Abstract: A battery module including a plurality of battery cells; and a spacer between the battery cells, the spacer including a support frame, and at least one pressing member coupled to the support frame, the at least one pressing member including a plate surface facing one of the battery cells and being in contact with an outside of a can of the one battery cell.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: December 24, 2024
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Hoo Min Lee, Seon Ung Choi, Jae lim Ryu, Jong hyun Lee, Han Ho Kim
  • Patent number: 12159994
    Abstract: An immobilized selenium body, made from carbon and selenium and optionally sulfur, makes selenium more stable, requiring a higher temperature or an increase in kinetic energy for selenium to escape from the immobilized selenium body and enter a gas system, as compared to selenium alone. Immobilized selenium localized in a carbon skeleton can be utilized in a rechargeable battery. Immobilization of the selenium can impart compression stress on both the carbon skeleton and the selenium. Such compression stress enhances the electrical conductivity in the carbon skeleton and among the selenium particles and creates an interface for electrons to be delivered and or harvested in use of the battery. A rechargeable battery made from immobilized selenium can be charged or discharged at a faster rate over conventional batteries and can demonstrate excellent cycling stability.
    Type: Grant
    Filed: August 31, 2022
    Date of Patent: December 3, 2024
    Assignees: II-VI DELAWARE, INC., INSTITUTE OF CHEMISTRY, CHINESE ACADEMY OF SCIENCES
    Inventors: Elgin E. Eissler, Wen-Qing Xu, Xiaoming Li, Yancheng Zhang, Shailesh Patkar, Giovanni Barbarossa, Yu-Guo Guo, Shuaifeng Zhang, Yaxia Yin
  • Patent number: 12159975
    Abstract: A protruding portion of a current collecting foil is provided at one end in a width direction over an entire length in a longitudinal direction. A first end of a positive electrode plate, which is located on a side on which the protruding portion is provided, is located outward of a second end in the width direction, the second end being an end of a positive electrode active material layer in the width direction located adjacent to the protruding portion. An insulating tape is interposed between a positive electrode plate and the negative electrode plate. Regarding a size and a position of the insulating tape, the insulating tape is provided in a region including the second end and the first end in the width direction, and the insulating tape is provided in a region including longitudinal ends of the positive electrode plate in the longitudinal direction.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: December 3, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Takahiro Sakurai
  • Patent number: 12160016
    Abstract: A secondary battery includes a negative electrode; a positive electrode including a plurality of positive electrode plates spaced apart from each other in a width direction, wherein a positive electrode plate of the plurality of positive electrode plates has a planar shape, and a channel between the plurality of positive electrode plates; an electrolyte material disposed in the channel between the plurality of positive electrode plates; a separation membrane between the negative electrode and the positive electrode; and a first metal layer disposed on a surface of the separation membrane facing the positive electrode.
    Type: Grant
    Filed: November 10, 2021
    Date of Patent: December 3, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyounghwan Kim, Hwiyeol Park, Joungwon Park, Jeongkuk Shon, Junhyeong Lee, Huisu Jeong
  • Patent number: 12159976
    Abstract: A battery separator for a lead/acid battery is resistant to oxidation arising from the use of water or acid containing contaminants, for example chromium (Cr), manganese (Mn), titanium (Ti), copper (Cu), and the like. The separator is a microporous membrane including a rubber. The rubber is no more than about 12% by weight of the separator. The rubber may be rubber latex, tire crumb, and combinations thereof. The rubber may be impregnated into the microporous membrane. The microporous membrane may be a microporous sheet of polyolefin, polyvinyl chloride, phenol-formaldehyde resins, cross-linked rubber, or nonwoven fibers. A method for preventing the oxidation and/or extending battery life of the separator is also included.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: December 3, 2024
    Assignee: Daramic, LLC
    Inventors: Eric H. Miller, J. Kevin Whear, Jeffrey K. Chambers
  • Patent number: 12155058
    Abstract: An immobilized chalcogen system or body includes an element of chalcogen, an electrically conductive material, and a hydrophilic membrane gate. The hydrophilic membrane gate may be used to isolate hydrophobic regions, one related to polychalcogenide ion(s) and another related to a hydrophobic electrolyte system. The hydrophilic membrane gate may prevent polychalcogenide from forming, and may provide control of undesirable parasitic mass transport and undesirable electron transport inside a chalcogen-based battery, and thereby allow the battery to cycle at a high specific capacity with a long cycling life. If desired, the immobilized chalcogen system or body may be employed in a cathode of a rechargeable battery.
    Type: Grant
    Filed: April 27, 2021
    Date of Patent: November 26, 2024
    Assignee: II-VI DELAWARE, INC.
    Inventors: Wen-Qing Xu, Christopher Koeppen, Chengkun Xu, Charan Masarupu, Colin Moore, Xiaoming Li
  • Patent number: 12148955
    Abstract: A secondary battery herein disclosed includes a power generating element, a battery case, and an electrode terminal. The electrode terminal includes a terminal part, an external connection part, and a molding resin part. The terminal part is connected to the power generating element. The external connection part contacts with the terminal part. The molding resin part covers the periphery of the connection surface between the external connection part and the terminal part in a state where a part of the external connection part is exposed to outside. The external connection part includes a step part between an outer circumferential portion of a connection surface between the external connection part and the terminal part, and an exposed part exposed from the molding resin part to the outside. The molding resin part covers both the outer circumferential portion of the connection surface and the step part.
    Type: Grant
    Filed: October 19, 2021
    Date of Patent: November 19, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventor: Tsuyoshi Ehara
  • Patent number: 12142733
    Abstract: The battery disclosed here comprises one or more wound electrode bodies each composed of a strip-shaped first electrode plate and a strip-shaped second electrode plate superimposed and wound together with a strip-shaped separator between the two, and a battery case containing the wound electrode body or bodies. The first electrode plate has multiple electrode tabs protruding from an edge extending in the longitudinal direction, and the multiple electrode tabs include a first electrode tab having a straight part that is roughly perpendicular to the edge and has a length of at least 2 mm in the direction orthogonal to the edge, and second electrode tabs lacking the straight part.
    Type: Grant
    Filed: November 2, 2021
    Date of Patent: November 12, 2024
    Assignee: PRIME PLANET ENERGY & SOLUTIONS, INC.
    Inventors: Masato Ota, Kodai Shintani, Kazuya Ikeshita, Takashi Hosokawa
  • Patent number: 12142777
    Abstract: Disclosed herein is a stacked battery pack that includes a plurality of unit cells stacked in a stacking direction. Each of the plurality of unit cells includes a resin holder, a flat cell housed in the resin holder, and a metal plate covering the flat cell, thereby the flat cell is sandwiched between the resin holder and the metal plate in the stacking direction.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: November 12, 2024
    Assignee: TDK Corporation
    Inventors: Hideyo Morita, Yuji Uehara, Koki Kawamura
  • Patent number: 12142790
    Abstract: An electrode assembly includes: a first electrode plate having a first electrode uncoated portion spaced apart from both ends in a longitudinal direction thereof, and a base tab on one surface of the first electrode uncoated portion; a second electrode plate having a second electrode uncoated portion spaced apart from both ends in a longitudinal direction thereof, and a base tab on one surface of the second electrode uncoated portion; a separator between the first electrode plate and the second electrode plate; a tab cover tape attached to the one surfaces of the first electrode uncoated portion and the second electrode uncoated portion; an uncoated portion cover tape attached to each of the other surfaces of the first electrode uncoated portion and the second electrode uncoated portion; and an insulating tape attached onto the second electrode plate at a position corresponding to the first electrode uncoated portion.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: November 12, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventor: In Seop Byun
  • Patent number: 12139408
    Abstract: Provided is a synthetic graphite material, in which a size L (112) of a crystallite in a c-axis direction as calculated from a (112) diffraction line obtained by an X-ray wide angle diffraction method is in a range of 4 to 30 nm, a surface area based on a volume as calculated by a laser diffraction type particle size distribution measuring device is in a range of 0.22 to 1.70 m2/cm3, an oil absorption is in a range of 67 to 147 mL/100 g, and a half width ?vG of a peak present in a wavelength range of 1580 cm?1±100 cm?1 is in a range of 19 to 24 cm?1 in Raman spectrum analysis using argon ion laser light having a wavelength of 514.5 nm.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: November 12, 2024
    Assignee: ENEOS CORPORATION
    Inventors: Takashi Suzuki, Takashi Maeda, Mitsuo Karakane, Takahiro Shirai, Hiroshi Kawachi, Noriyuki Kiuchi
  • Patent number: 12142782
    Abstract: An electrochemical cell includes a first unit cell including a first power generation element and a first inner container which accommodates the first power generation element; a second unit cell including a second power generation element and a second inner container which accommodates the second power generation element; an outer container which accommodates the first unit cell and the second unit cell. A surface of the first inner container is provided with a convexity that has a curved surface and/or a flat surface, and a surface of the second inner container is provided with a concavity that has a curved surface and/or a flat surface. The electrochemical cell includes a fit portion in which the convexity is fitted in the concavity.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: November 12, 2024
    Assignee: KYOCERA CORPORATION
    Inventor: Takaaki Fukushima