Patents Assigned to Samsung SDI, Co., Ltd.
  • Publication number: 20240421417
    Abstract: A rechargeable battery includes an electrode assembly, a can accommodating the electrode assembly in an internal region of the can, and a cap assembly coupled to the can to seal the can. The cap assembly includes a safety vent and a cap down stacked with a connecting member interposed between the safety vent and the cap down. The safety vent comprises a central part joined to the cap down, a middle part comprising a step portion and a notch groove, a fusion part in contact with the connecting member, and a wing part surrounding the fusion part. At least three of the central part, middle part, the fusion part, or the wing part have different thicknesses.
    Type: Application
    Filed: May 30, 2024
    Publication date: December 19, 2024
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Dae Kyu Kim, Jongjun Park, Kwangsoo Seo, Shinjung Kim
  • Publication number: 20240421439
    Abstract: A rechargeable battery module is provided.
    Type: Application
    Filed: May 21, 2024
    Publication date: December 19, 2024
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Young-Hwan Kwon, Chuljung Yun
  • Publication number: 20240421382
    Abstract: Examples include an insulation sheet for batteries, the insulation sheet including an aerogel layer including an aerogel and a coating layer configured to cover substantially the entire surface of the aerogel layer. The coating layer includes a flexible polymer and a flame retardant dispersed in the flexible polymer, and the elastic modulus of the coating layer measured in accordance with ASTM D882 is about 8 MPa or less. Examples also include method of manufacturing the insulation sheet, and a battery module including the insulation sheet.
    Type: Application
    Filed: April 22, 2024
    Publication date: December 19, 2024
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Seung Yong YANG, Myung Heui WOO, Bo Kyung RYU, Ha Na RA, Jae Hyun LEE, Hye Jin PARK
  • Publication number: 20240421383
    Abstract: Example embodiments relate to a battery module including a plurality of cells and an insulation member provided between the plurality of cells, the insulation member having an upper surface and a lower surface disposed so as to face cells adjacent thereto, respectively. The insulation member includes a first insulation sheet, a second insulation sheet, and an expansion layer formed between the first insulation sheet and the second insulation sheet. Example embodiments also include a method of manufacturing a battery module, and a battery pack including a battery module.
    Type: Application
    Filed: April 26, 2024
    Publication date: December 19, 2024
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Seung Yong YANG, Myung Heui WOO, Bo Kyung RYU, Ha Na RA, Jae Hyun LEE, Hye Jin PARK
  • Patent number: 12170452
    Abstract: A charging system includes a battery pack including at least one battery cell and a battery management module, and a charger including a connector configured to detect a connection with the battery pack, a communicator configured to communicate with the battery management module, and a controller configured to control charging of the battery pack. The controller of the charger is configured to output a wake-up voltage when the connection with the battery pack is detected through the connector, receive a value of a battery voltage from the battery management module through the communicator, determine a charging start voltage based on the value of the battery voltage, and start charging the battery pack after outputting the charging start voltage.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: December 17, 2024
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Sesub Sim, Jongsam Park
  • Patent number: 12170357
    Abstract: A battery system includes: a plurality of battery cells, each of the battery cells having a venting side including a venting exit configured to allow venting products to exit the battery cells during a thermal runaway and a cooling side opposite the venting side; a cooling plate, the cooling side of the battery cells being in thermal connection with a first side of the cooling plate; and a battery housing enclosing the battery cells in a cell chamber. A guiding channel is formed between a second side of the cooling plate opposite the first side and a channel wall of the battery housing facing the second side of the cooling plate, and a passage fluidly connects the cell chamber and the guiding channel.
    Type: Grant
    Filed: February 16, 2022
    Date of Patent: December 17, 2024
    Assignee: SAMSUNG SDI CO., LTD
    Inventors: Gernot Kraberger, Wolfgang Reinprecht, Michael Erhart
  • Patent number: 12166230
    Abstract: Disclosed is a secondary battery, which has a reinforced strength and can simplify the manufacturing process thereof. For example, one embodiment provides a secondary battery which comprises: an electrode assembly including a first electrode plate and a second electrode plate, wherein one of the first electrode plate and the second electrode plate includes a plurality of first tabs formed to protrude in one direction; a first current collection tab coupled to the first tabs; a case housing the electrode assembly; and a cap assembly coupled to the upper part of the case, wherein the first current collection tab is coupled to one of the cap assembly and the bottom surface of the case.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: December 10, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyun Ki Jeong, Ho Jae Lee, Jung Hyun Park, June Hyoung Park, Sang Mi Lee, Won Ik Lee, Ye Ji Cha, Nobuyuki Oyagi
  • Patent number: 12166243
    Abstract: A secondary battery comprises: an electrode assembly in which a first electrode plate having a first non-coated part protruding in a first direction, a second electrode plate having a second non-coated part protruding in a second direction opposite to the first direction, and a separator between the first electrode plate and the second electrode plate, are wound; a first current collecting plate electrically coupled to the first non-coated part; a second current collecting plate electrically coupled to the second non-coated part, and having an end part protruding beyond the first current collecting plate by penetrating the winding center of the electrode assembly; and an insulation member between the end part of the second current collecting plate and the first current collecting plate, wherein the end part of the second current collecting plate is coupled with the insulation member.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: December 10, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sang Hyo Lee
  • Patent number: 12166199
    Abstract: A negative active material for a rechargeable lithium battery includes at least one particle selected from a composite crystalline carbon particle (A) including a crystalline carbon core and an amorphous carbon coating layer surrounding the crystalline carbon core; a composite crystalline carbon-silicon particle (B) including a mixed core of a crystalline carbon and silicon and an amorphous carbon coating layer surrounding the mixed core; and a composite silicon particle (C) including a silicon core and an amorphous carbon coating layer surrounding the silicon core, wherein the at least one particle has convexity in a range of about 0.85 to about 0.97 and circularity in a range of about 0.74 to about 0.90.
    Type: Grant
    Filed: February 8, 2021
    Date of Patent: December 10, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Hee Seon Choi
  • Patent number: 12166217
    Abstract: The present invention relates to a secondary battery in which an electrode assembly and a current collection plate may be easily welded and safety may be improved. As an embodiment, disclosed is a secondary battery comprising: an electrode assembly which is formed by winding a first electrode plate having a first electrode uncoated part, a separator, and a second electrode plate having a second electrode uncoated part, the first electrode uncoated part protruding upwards, and the second electrode uncoated part protruding downwards; and a first current collection plate which is electrically connected to the first electrode uncoated part and has a concave-convex part protruding downwards, wherein the width of the concave-convex part becomes wider from the center of the first current collection plate toward the outer periphery thereof.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: December 10, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jung Hyun Park, Gun Gue Park, June Hyoung Park, Hyun Ki Jeong, Sung Soo Park, Won Ik Lee
  • Patent number: 12166238
    Abstract: A secondary battery includes a Z stack electrode assembly including a separator bent in a Z shape and including a plurality of bent areas, a first electrode plate on a lower portion of each of the bent areas, and a second electrode plate on an upper portion of each of the bent areas, and an exterior portion configured to accommodate the Z stack electrode assembly, and an outermost end area of the separator is bent to be thermally fused to a bent area of the plurality of bent areas of the separator.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: December 10, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kyu Gil Choi, Won Wook Cho
  • Patent number: 12160057
    Abstract: A battery system for an electric vehicle, the battery system includes at least one high voltage component; and a touch protector, the touch protector being configured to protect a user from accidentally contacting the high voltage component, wherein the touch protector includes a pivotably mounted isolating flap, the isolating flap being pivotable between a blocking position in which the isolating flap blocks access to the at least one high voltage component, and an access position in which the isolating flap allows access to the at least one high voltage component, wherein the isolating flap is configured such that the isolating flap is pivotable towards the high voltage component from the blocking position to the access position in response to application of a predetermined force to the isolating flap.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: December 3, 2024
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Andreas Koppel, Fritz Haring, Michael Bauer
  • Patent number: 12158699
    Abstract: A semiconductor photoresist composition includes an organometallic compound represented by Chemical Formula 1, a photoacid generator (PAG), and a solvent: In Chemical Formula 1, R is a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C2 to C20 aliphatic unsaturated organic group including at least one double bond or triple bond, a substituted or unsubstituted C6 to C30 aryl group, an ethoxy group, a propoxy group, or a combination thereof; and X, Y, and Z are each independently —OR1 or —OC(?O)R2.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: December 3, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Changsoo Woo, Eunmi Kang, Jaehyun Kim, Jimin Kim, Taeho Kim, Ran Namgung, Kyungsoo Moon, Hwansung Cheon, Seungyong Chae, Seung Han
  • Patent number: 12158600
    Abstract: A polarizing plate and an optical display apparatus including the same are provided. The polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer. The first retardation layer has an in-plane retardation (Re) of 200 nm to 250 nm at a wavelength of 550 nm; the second retardation layer has an in-plane retardation (Re) of 80 nm to 140 nm at a wavelength of 550 nm; and the polarizing plate has a total transmittance difference of 2% or more between total transmittance at a wavelength of 450 nm and total transmittance at a wavelength of 420 nm.
    Type: Grant
    Filed: June 6, 2023
    Date of Patent: December 3, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jun Mo Koo, Jung Hun You, Sang Hum Lee, Bong Choon Kim, Yoon Jung Kim, Ri Ra Jung, Kyu Sik Kim, Kwang Ho Shin, Han Mam Jeong, Eun Su Park
  • Patent number: 12159996
    Abstract: A lithium secondary battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolyte located therebetween. The positive electrode active material includes a lithium cobalt-based active material and a lithium nickel cobalt-based active material, wherein the lithium cobalt-based active material is larger in size and amount than the lithium nickel cobalt-based active material, and the lithium nickel cobalt-based active material is a one-body positive electrode active material.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: December 3, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Mihwa Yang, Moonju Cho, Minjae Kim, Beomkwon Kim
  • Publication number: 20240396087
    Abstract: Examples of this disclosure relate to an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same, the electrolyte including a non-aqueous organic solvent, a lithium salt, and a potassium imide salt.
    Type: Application
    Filed: March 22, 2024
    Publication date: November 28, 2024
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Jin-Hyeok LIM, Jinah SEO, Sujeong KOH, Erang CHO, Yunhee KIM
  • Patent number: 12155076
    Abstract: A secondary battery including an electrode assembly including a negative electrode plate having a negative electrode tab, a positive electrode plate having a positive electrode tab, and a separator between the negative electrode plate and the positive electrode plate; a pouch accommodating the electrode assembly, the pouch having a sealing portion at an edge thereof that is sealed with the electrode assembly accommodated in the pouch; and a strip terminal, including a negative electrode lead electrically connected to the negative electrode tab, a positive electrode lead electrically connected to the positive electrode tab, and a tab film having one end coupled to the negative electrode lead and another end coupled to the positive electrode lead, the tab film insulating the negative electrode lead, the positive electrode lead, and the pouch from one another and including a through-hole passing therethrough between the one end and the other end.
    Type: Grant
    Filed: September 9, 2021
    Date of Patent: November 26, 2024
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Hiroshi Seino, Jae Hyuck Cha, Jeong Chull Ahn, Sang Hyun Kim
  • Patent number: 12155057
    Abstract: The present invention relates an anode for a lithium secondary battery and a lithium secondary battery comprising same. The anode for a lithium secondary battery comprises a current collector; and an anode active material layer formed on the current collector and including a carbon-based anode active material, wherein the anode active material layer has a multi-layer structure of three or more layers and at least one layer of the anode active material layer is an oriented layer having a degree of divergence (DD) of 19 or greater, the DD being defined by the following formula 1: Degree of Divergence (DD)=(Ia/Itotal)*100??[formula 1] (In formula 1, Ia is a sum of peak intensities at non-planar angles measured by XRD using a CuK? ray, and, Itotal is a sum of peak intensities at all angles measured by XRD using a CuK? ray).
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: November 26, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jinhyon Lee, Hongjeong Kim, Hyeri Eom, Sangjun Lee, Daeseop Lim
  • Patent number: 12153238
    Abstract: A polarizing plate and an optical display device comprising the same are disclosed. The polarizing plate includes a polarizer comprising a zinc cation and a unit represented by the Formula 1, and the polarizing plate has a chrominance variation ?E of about 5.2 or less, as calculated by Equation 1.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: November 26, 2024
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung Man Cho, Mun Bo Ko, Ki Yong Kim, Yeon Ju Na, Eun Sol Cho
  • Patent number: 12155246
    Abstract: A control unit for a battery system includes a plurality of battery cells is provided. The control unit includes: an input node configured to receive a sensor signal indicative of a state of at least one of the plurality of battery cells; a microcontroller connected to the input node and configured to generate a first control signal based on the sensor signal; and a switch control circuit configured to control a power switch of the battery system by: receiving the sensor signal, the first control signal, and a fault signal indicative of an operational state of the microcontroller; generating a second control signal based on the sensor signal; and transmitting one of the first control signal and the second control signal to an output node of the control unit based on the received fault signal.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: November 26, 2024
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Maximilian Hofer, Markus Pretschuh, Michael Erhart