Patents Assigned to Samsung SDI, Co., Ltd.
  • Patent number: 11075367
    Abstract: A composite cathode active material, a cathode including the composite cathode active material, and a lithium battery including the cathode are provided. The composite cathode active material includes a core including a lithium metal oxide and a coating layer on the core, wherein the lithium metal oxide includes two or more transition metals including nickel (Ni), an amount of Ni within one mole of the two or more transition metals included in the lithium metal oxide is about 0.65 mol or greater, the coating layer includes LiF, and a resistance of the composite cathode active material is lower than that of the core.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: July 27, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yumi Song, Seonyoung Kwon, Kihyun Kim, Soohyeon Kim, Jinhwa Kim, Joongho Moon, Jaeho Lee, Kwanghwan Cho, Soonbong Choi, Mingzi Hong
  • Patent number: 11075373
    Abstract: A positive electrode for a metal secondary battery includes a positive current collector; and a positive active material layer disposed on the positive current collector, wherein the positive active material layer includes: a positive active material, a salt including an alkali metal salt, an alkaline earth metal salts, or a combination thereof, and a polymeric first binder including a repeating unit represented by Formula 1 wherein R is a substituted or unsubstituted C2-C5 alkylene group, a substituted or unsubstituted C2-C6 alkoxylene group, a substituted or unsubstituted C2-C6 alkoxycarbonylene group, a substituted or unsubstituted C2-C6 alkylene oxide group, or a combination thereof, and n is an integer from 90 to 2,700. Also a metal secondary battery including the same.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: July 27, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Dongjin Lee, Joonseon Jeong, Chansu Kim, Yooseong Yang, Taehwan Yu
  • Patent number: 11075411
    Abstract: A protection circuit module includes a plurality of pads respectively and electrically connected to a plurality of battery cells, protection circuit to monitor voltages of the battery cells and to balance of the battery cells, and a plurality of contact pads arranged in a preset order between the pads and the protection circuit.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: July 27, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jihwan Seol, Sundaraaman K.V
  • Patent number: 11075410
    Abstract: A battery module system includes a master module and at least one slave module that are connected in series. An isolated communication is performed between the master module and the at least one slave module.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: July 27, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jaewoo Kam, Gilchoun Yeom, Sanggu Lee, Youngjin Lee, Hyeoncheol Jeong
  • Patent number: 11075389
    Abstract: A rechargeable lithium battery includes a metal-containing foam current collector, and an active mass that fills in the metal-containing foam current collector, the active mass including an active material. The electrode includes a central region and a surface region. The central region corresponds to a ±5% upper and lower area with a reference to a central thickness line of the electrode. A volume ratio of the metal and the active material in the central region is different from a volume ratio of the metal and the active material in the surface region.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: July 27, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyeri Eom, Seungjae Lee, Da-Un Han
  • Patent number: 11073761
    Abstract: A semiconductor resist composition includes an organometallic compound represented by Formula I and a solvent: wherein L includes at least one alkylene group in the main chain. A pattern may be formed using the composition. The pattern formed by using the semiconductor resist composition may not collapse while having a high aspect ratio.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: July 27, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyung Soo Moon, Jaehyun Kim, Yoong Hee Na, Ran Namgung, Hwansung Cheon, Seungyong Chae
  • Patent number: 11075254
    Abstract: A display device includes a first electrode, a pixel define layer disposed on the first electrode, the pixel define layer including an opening, an organic emission layer disposed on the pixel define layer, the organic emission layer in electrical communication with the first electrode through the opening, a second electrode disposed on the organic emission layer, a light recycle layer disposed on the second electrode, and a color filter layer disposed on the light recycle layer, the color filter layer including a quantum dot, wherein a width of the organic emission layer is longer than a width of the color filter layer.
    Type: Grant
    Filed: January 23, 2020
    Date of Patent: July 27, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Deukseok Chung, Sung Hun Lee, Tae Gon Kim, Shin Ae Jun
  • Patent number: 11075345
    Abstract: An organometallic compound represented by one of Formulae 1A and 1B: wherein, in Formulae 1A and 1B, A11, b20, L11, M, m, n, and R15 to R20 are the same as described in the specification.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: July 27, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Satoko Ishibe, Hyejin Bae, Wook Kim, Changho Noh, Sangho Park, Virendra Kumar Rai, Miyoung Chae, Dmitry Kravchuk
  • Patent number: 11075434
    Abstract: A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly including uncoated region tabs that protrude toward one side of a coated portion; a case having a first length set in a first direction to receive the electrode assembly; a cap plate having a second length set in a second direction that crosses the first direction and a third length that is shorter than the first length and set in a third direction that crosses the second direction so as to be coupled corresponding to an opening of the case; an electrode terminal that is provided in a terminal hole of the cap plate; and a current collecting member that is disposed between the cap plate and the electrode assembly to connect the electrode terminal and the uncoated region tabs, and includes a fuse in a corresponding region of the electrode terminal, facing in the first direction.
    Type: Grant
    Filed: June 29, 2017
    Date of Patent: July 27, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Myungjae Jang, Chiyoung Lee
  • Patent number: 11075423
    Abstract: A battery submodule carrier includes a monolithic cell tray configured to accommodate a plurality of aligned battery cells; a plurality of cell retainers configured to retain the battery cells within the cell tray; and a plurality of tray fasteners configured to mount the cell tray to a battery system carrier.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 27, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ralph Wuensche, Stephan Klomberg, Thomas Brandner, Thomas Renger
  • Patent number: 11075428
    Abstract: A separator and an electrochemical battery, the separator including a porous substrate; and a porous bonding layer on one surface or both surfaces of the porous substrate, wherein the porous bonding layer includes a first polyvinylidene fluoride-based polymer, the first polyvinylidene fluoride-based polymer including a polyvinylidene fluoride-based homopolymer or a polyvinylidene fluoride-based copolymer that includes a vinylidene fluoride repeating unit and a hexafluoropropylene repeating unit, and a second polyvinylidene fluoride-based polymer, the second polyvinylidene fluoride-based polymer including a vinylidene fluoride repeating unit and a (meth)acrylate repeating unit, or a vinylidene fluoride repeating unit and a repeating unit of a monomer that includes at least one of an epoxy group, a hydroxy group, a carboxyl group, an ester group, or an acid anhydride group.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: July 27, 2021
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Byung-Soo Kim, Sangho Lee, Jihyun Chun, Daehyun Hong, Seyeong Kang, Jinseong Park, Imhyuck Bae
  • Patent number: 11075427
    Abstract: A secondary battery including: an electrode assembly; a case accommodating the electrode assembly; and a cap assembly coupled to the case. The cap assembly includes: a cap-up exposed at a top of the cap assembly; a safety vent under the cap-up; and a reinforcement plate between the cap-up and the safety vent and extending along a periphery of the cap-up. The safety vent includes a protrusion protruding toward the electrode assembly and is electrically connected to the electrode assembly via the protrusion.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: July 27, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Byoungmin Chun
  • Patent number: 11075433
    Abstract: An exemplary embodiment of the present invention provides a rechargeable battery that can block a current of a cell without causing quality scatter by removing operating scatter of the overcharge safety device upon occurrence of overcharge in the cell.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: July 27, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Joonghun Kim
  • Patent number: 11067842
    Abstract: Provided are a contrast ratio improving optical film, a polarizing plate comprising the same, and a liquid crystal display device comprising the same, wherein the contrast ratio improving optical film comprises a contrast ratio improving layer. The contrast ratio improving layer comprises a first resin layer and a second resin layer which faces the first resin layer, wherein the second resin layer comprises a pattern part having optical patterns and a flat part between the optical patterns. The optical patterns have at least one inclined surface with respect to the flat part, and the flat part or the inclined surface has a light absorption layer formed thereon. The contrast ratio improving optical film has a lowest reflectance of 0.5% or less.
    Type: Grant
    Filed: November 27, 2017
    Date of Patent: July 20, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Young Hyun Ju, Dae Seob Shim, Young Oh, Dong Ho Wee, Jeong Ho Lee, Yong Un Jung, Jang Hyun Cho
  • Patent number: 11068765
    Abstract: A battery module includes: a plurality of battery cells; a printed circuit board arranged within a short distance to the battery cells; a passive radio frequency identification tag; and a radio frequency receiver on the printed circuit board. The radio frequency identification tag is attached to at least one of the battery cells and is configured to measure a temperature of the at least one battery cell to which it is attached. The radio frequency identification tag is configured to harvest energy supplied by the radio frequency receiver and to wirelessly send temperature signals corresponding to the temperature of the at least one battery cell within an operating range limited to the short distance. The radio frequency receiver is configured to wirelessly supply energy to the radio frequency identification tag and to receive the temperature signal sent by the radio frequency identification tag.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: July 20, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Michael Erhart
  • Patent number: 11069946
    Abstract: A rechargeable battery pack may improve safety of the rechargeable battery pack by interrupting a high voltage of a module when a defect of a unit cell occurs. A rechargeable battery pack includes: unit cells configured to be repeatedly charged or discharged; bus bars configured to electrically connect electrode terminals of the unit cells; a housing configured to accommodate the unit cells; a first final terminal and a second final terminal configured to draw respective electrode terminals provided at outermost unit cells of the unit cells out of the housing; and a high voltage interruption device configured to be provided at the first final terminal and to electrically connect or disconnect a high voltage line according to an internal pressure generated when a defect of a unit cell of the unit cells occurs.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: July 20, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Dukjung Kim
  • Patent number: 11069751
    Abstract: A display device including a light source including a first electrode having a light reflectance for a first light of greater than or equal to about 60%; an organic light emitting layer disposed on the first electrode and emitting the first light; and a second electrode disposed on the organic light emitting layer and having a light transmittance in a visible wavelength region of greater than or equal to about 70%, wherein the light source has a first absorption peak in a wavelength region of about 650 nanometers (nm) to about 750 nm or a second absorption peak in a wavelength region of about 550 nm to about 600 nm at a viewing angle of about 55 degrees to about 85 degrees, and a color filter layer disposed above the light source and including a quantum dot configured to convert the first light into a second light.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: July 20, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG DISPLAY CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Tae Gon Kim, Sung Hun Lee, Ji Whan Kim, Shin Ae Jun, Deukseok Chung
  • Patent number: 11069924
    Abstract: A battery pack includes a battery and a battery management system to control and manage charging and discharging of the battery. The battery management system includes an external terminal connected to a charger or an external electronic device, a cell terminal connected to the battery, a charge field effect transistor (FET) and a discharge FET connected between the external terminal and the cell terminal, a voltage sensor to measure a battery voltage of the battery, a comparator comparing the battery voltage with a reference voltage to determine whether the battery pack is in an overdischarged state, and a controller controlling the charge FET to be cut off to prevent a charge operation of the battery, if the comparator determines that the battery pack is in an overdischarged state.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: July 20, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Tae Jin Lee
  • Patent number: 11063292
    Abstract: A composite electrolyte structure includes: a protective layer having a Young's modulus of about 106 pascals or greater and including a first particle, the first particle including an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, wherein the particle in the protective layer has a particle size of greater than 1 micrometer to about 100 micrometers, and a solid electrolyte layer including a second particle including an organic particle, an inorganic particle, an organic-inorganic particle, or a combination thereof, wherein the second particle has a particle size of greater than 1 micrometer to about 100 micrometers, wherein the first particle and the second particle are the same or different, and wherein the protective layer is on the solid electrolyte layer.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 13, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: Yonggun Lee, Saebom Ryu, Taehwan Yu, Wonseok Chang
  • Patent number: 11059954
    Abstract: A composition for preparing an article including a polyimide or poly(imide-amide) copolymer, the composition including (1) at least one of (i) a polyimide, a polyamic acid, or a poly(imide-amic acid) including at least one selected from a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2; and (ii) a poly(imide-amide) copolymer, a poly(amic acid-amide) copolymer, or a poly(imide and amic acid-amide) copolymer including at least one selected from a structural unit represented by Chemical Formula 1 and a structural unit represented by Chemical Formula 2, and a structural unit represented by Chemical Formula 3, and (2) a compound having a maximum absorption wavelength at about 570 nm or more in a visible radiation region: wherein in Chemical Formulae 1 to 3, A, B, D, and E are the same as defined in the detailed description.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: July 13, 2021
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD.
    Inventors: A Ra Jo, Chanjae Ahn, Byunghee Sohn, Kyeong-sik Ju