Patents by Inventor Yong-Seok Choi

Yong-Seok Choi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12374728
    Abstract: A battery pack includes at least one battery module including a plurality of battery cells, and a module housing to receive the plurality of battery cells, at least one thermoelectric module disposed outside or inside of the module housing of the battery module and configured to generate voltage when a temperature of the battery module rises to a predetermined temperature or above, and an energy drain unit configured to discharge the battery module when a predetermined magnitude of voltage or above is applied from the thermoelectric module.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: July 29, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jee-Soon Choi, Dal-Mo Kang, Jae-Dong Park, Sang-Hoon Lee, Hyun-Ki Cho, Yong-Seok Choi
  • Patent number: 12368202
    Abstract: The present disclosure relates to a battery module with reduced manufacturing cost and a battery pack comprising the same. To achieve the above-described object, the battery module according to the present disclosure includes a cell assembly including a plurality of secondary batteries, and a module housing in which the cell assembly is received, wherein the module housing includes at least two frames capable of changing a length of the module housing according to a size of the cell assembly.
    Type: Grant
    Filed: April 29, 2021
    Date of Patent: July 22, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Sang-Woo Ryu, Jee-Soon Choi, Yong-Seok Choi
  • Publication number: 20250219130
    Abstract: Disclosed are an all-solid-state battery including a reference electrode and a control method thereof. The all-solid-state battery includes the reference electrode located between an upper stack including one or more unit cells and a lower stack including one or more unit cells to determine potentials of electrodes in the all-solid-state battery so as to control driving of the all-solid-state battery.
    Type: Application
    Filed: June 25, 2024
    Publication date: July 3, 2025
    Inventors: Young Jin Nam, Yong Guk Gwon, Yeo Min Yoon, Yong Seok Choi, Min Sun Kim
  • Patent number: 12341218
    Abstract: A battery module includes at least two cell assemblies, a module housing having an upper cover formed by a top portion and a first side portion extending downward from a first side edge of the top portion, a first gas passage formed between the first side portion of the upper cover and a first side of the at least two cell assemblies for circulation of gas generated from the at least two cell assemblies, and a flame retardant plate in the first gas passage and extending between the at least two cell assemblies and the module housing, wherein the first side portion of the upper cover is coupled to the flame retardant plate.
    Type: Grant
    Filed: November 9, 2023
    Date of Patent: June 24, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Eun-Gyu Shin, Jeong-O Mun, Jae-Min Yoo, Yoon-Koo Lee, Yong-Seok Choi, Jee-Soon Choi
  • Publication number: 20250183487
    Abstract: A battery module includes: a battery cell assembly having a plurality of battery cells; a top plate configured to cover an upper side of the battery cell assembly; a bottom plate configured to cover a lower side of the battery cell assembly; a sensing assembly disposed to cover a front side and a rear side of the battery cell assembly; a pair of side plates disposed at side surfaces, respectively, of the battery cell assembly; and a pair of compression pads disposed between the pair of side plates and the battery cell assembly, respectively.
    Type: Application
    Filed: February 10, 2025
    Publication date: June 5, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sung-Won Seo, Dong-Yeon Kim, Ho-June Chi, Dal-Mo Kang, Jin-Hak Kong, Jeong-O Mun, Yoon-Koo Lee, Yong-Seok Choi, Alexander Eichhorn, Andreas Track
  • Publication number: 20250158434
    Abstract: A forced discharge test apparatus includes a heating circuit; a discharge circuit; a temperature sensor; and a controller. When the controller receives a test command indicating a test resistance and a test temperature, the controller outputs a first control signal to the heating circuit to increase the temperature of a battery cell. The controller outputs a second control signal to the discharge circuit to discharge the battery cell when the temperature of the battery cell reaches the set test temperature. The controller determines that the test temperature is valid with respect to the test resistance when the temperature of the battery cell is equal to or lower than the upper temperature limit at a time point at which a predetermined heating time has passed from a time point when the first control signal is outputted.
    Type: Application
    Filed: November 20, 2024
    Publication date: May 15, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang-Woo RYU, Jee-Soon CHOI, Dal-Mo KANG, Yong-Seok CHOI
  • Patent number: 12300790
    Abstract: The present disclosure relates to an all-solid-state battery with improved lifetime and an operating method thereof. Specifically, the all-solid-state battery includes a laminate including a unit cell provided with an anode, a cathode, and a solid electrolyte layer interposed between the anode and the cathode, and an expansion layer positioned on at least one surface of the laminate, and expanded by at least any one change in voltage and temperature.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: May 13, 2025
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Yong Seok Choi, Young Jin Nam, Myoung Kyou Lee, Jae Min Lim, Soon Chul Byun
  • Publication number: 20250111822
    Abstract: A system may include a display having a housing, a cover lens coupled to the housing, a light plate assembly in the housing, a diffuser that overlaps the light plate assembly, a louver layer that overlaps the diffuser, and a ring light source that emits additional light around the periphery of the light plate assembly and through the cover lens. The light plate assembly may include an array of light-emitting components. To improve the efficiency and contrast of the light plate assembly, reflective fill material may be formed around each light-emitting component, and absorptive fill material may surround the reflective fill material. The absorptive fill material may absorb ambient light, while the reflective fill material may redirect stray light out of the display. Dam material may surround the absorptive fill material and/or the reflective fill material.
    Type: Application
    Filed: September 26, 2024
    Publication date: April 3, 2025
    Inventors: Clarisse MAZUIR, Daamun MOHSENI, Christopher P. FOSS, Kurt R. STIEHL, Lynne DEVINE, Jonathan P. IVE, Matthew J. ALLEN, Kevin M. LYNCH, Alan C. DYE, Xiaofeng TANG, Daniel DE ROCHA ROSARIO, Ronak J. SHAH, Tom HSU, Tao ZHAN, Rong LIU, Morteza AMOOREZAEI, Syed Tauseen Aqeel SHAH, Ziruo HONG, Yanhui XIE, Yu P. SUN, Yong Seok CHOI
  • Publication number: 20250105370
    Abstract: An embodiment of a flame-retardant electrode includes a flame-retardant layer between an electrode current collector and an electrode active material layer, and an embodiment of an all-solid-state battery including the same, in which the flame-retardant layer includes a flame retardant configured such that the surface of a flame-retardant material is coated with a conductive material, thereby increasing thermal stability and adhesion to the electrode current collector.
    Type: Application
    Filed: March 8, 2024
    Publication date: March 27, 2025
    Inventors: Min Sun Kim, Young Jin Nam, Yeo Min Yoon, Yong Seok Choi, Yong Guk Gwon
  • Patent number: 12261326
    Abstract: A battery module includes: a battery cell assembly having a plurality of battery cells; a top plate configured to cover an upper side of the battery cell assembly; a bottom plate configured to cover a lower side of the battery cell assembly; a sensing assembly disposed to cover a front side and a rear side of the battery cell assembly; a pair of side plates disposed at side surfaces, respectively, of the battery cell assembly; and a pair of compression pads disposed between the pair of side plates and the battery cell assembly, respectively.
    Type: Grant
    Filed: January 2, 2024
    Date of Patent: March 25, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Sung-Won Seo, Dong-Yeon Kim, Ho-June Chi, Dal-Mo Kang, Jin-Hak Kong, Jeong-O Mun, Yoon-Koo Lee, Yong-Seok Choi, Alexander Eichhorn, Andreas Track
  • Patent number: 12260801
    Abstract: A display device includes a processor providing an image frame, a sub-frame generator generating a first sub-frame and a second sub-frame based on the image frame, and a pixel part for sequentially displaying a first image corresponding to the first sub-frame and a second image corresponding to the second sub-frame, wherein the image frame includes a first color grayscale, a second color grayscale, and a third color grayscale for each pixel, the first sub-frame includes the first color grayscale and the second color grayscale for a first pixel, and does not include the third color grayscale, and the second sub-frame includes the second color grayscale and the third color grayscale for the first pixel, and does not include the first color grayscale.
    Type: Grant
    Filed: August 25, 2023
    Date of Patent: March 25, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Yong Seok Choi
  • Publication number: 20250098036
    Abstract: The present invention relates to a method for manufacturing an electrostatic chuck, and more specifically, to a method for manufacturing an electrostatic chuck with minimized temperature deviation. The method of the present invention includes: a step S10 of forming a metal layer by depositing metal on a lower portion of a base containing a ceramic material and provided with an ESC electrode at an upper portion thereof; and a step S20 of forming a heater electrode by forming a pattern on the metal layer using a photolithography process.
    Type: Application
    Filed: January 31, 2024
    Publication date: March 20, 2025
    Inventors: Yun Hwi Park, Jin Yeol Wang, Yong Seok Choi, Ji Ho Uh, Seung Min Ryu, Do Youn Kim, Yoon Ho Jung
  • Patent number: 12206126
    Abstract: A battery module includes a sub module including a plurality of battery cells, a lower housing to receive the sub module therein and having an opening, a first housing cover coupled to the lower housing, covering the opening of the lower housing, and having a gas inlet, a second housing cover coupled to the first housing cover from above to form a gas receiving space therebetween, and having a gas outlet, and a variable partition structure using hinges installed in the gas receiving space to partition the gas receiving space to define a gas exhaust path to increase a movement path of a flame entering together with gas occurred in the sub module and entering the gas receiving space through the gas inlet.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: January 21, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sang-Woo Ryu, Jee-Soon Choi, Dal-Mo Kang, Yong-Seok Choi
  • Patent number: 12194864
    Abstract: A battery pack includes a battery module having a battery cell, a relay configured to connect the at least one battery module to a motor of the vehicle, and a controller connected to the relay and the motor to control the relay and the motor. When a temperature of the battery cell of the battery module rises over a predetermined temperature, the controller operates the relay so that the motor idles. The battery pack is provided to a vehicle.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: January 14, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Jee-Soon Choi, Sang-Woo Ryu, Gyu-Jong Bae, Yong-Seok Choi
  • Patent number: 12179172
    Abstract: Provided are a superabsorbent polymer and a preparation method thereof. More particularly, provided are a superabsorbent polymer including a fine powder reassembly, wherein the superabsorbent polymer exhibits excellent absorption performances and absorption rate, and does not cause deterioration of physical properties such as water retention capacity (CRC) or absorbency under pressure (AUP), and a preparation method thereof.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: December 31, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Yong Seok Choi, Yeon Woo Hong, Eunji Shin, Taebin Ahn
  • Publication number: 20240429351
    Abstract: A display device includes a color conversion layer disposed above a light emitting element and including a first quantum dot and a second quantum dot. A core of the first quantum dot includes a Group I-III-VI semiconductor compound, and a core of the second quantum dot includes a Group III-V semiconductor compound.
    Type: Application
    Filed: March 7, 2024
    Publication date: December 26, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Yong Seok CHOI, Song Yi KIM, Su Jin KIM, Ki Heon LEE
  • Patent number: 12176745
    Abstract: A forced discharge test apparatus includes a heating circuit; a discharge circuit; a temperature sensor; and a controller. When the controller receives a test command indicating a test resistance and a test temperature, the controller outputs a first control signal to the heating circuit to increase the temperature of a battery cell. The controller outputs a second control signal to the discharge circuit to discharge the battery cell when the temperature of the battery cell reaches the set test temperature. The controller determines that the test temperature is valid with respect to the test resistance when the temperature of the battery cell is equal to or lower than the upper temperature limit at a time point at which a predetermined heating time has passed from a time point when the first control signal is outputted.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: December 24, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Sang-Woo Ryu, Jee-Soon Choi, Dal-Mo Kang, Yong-Seok Choi
  • Publication number: 20240421321
    Abstract: The present disclosure relates to a dry electrode for a lithium secondary battery with controlled surface roughness and a pouch-type lithium secondary battery including the same.
    Type: Application
    Filed: November 28, 2023
    Publication date: December 19, 2024
    Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION
    Inventors: Yong Guk Gwon, Min Su Kim, Yong Seok Choi, Young Jin Nam
  • Publication number: 20240413294
    Abstract: Disclosed are a cathode for all-solid-state batteries including a network, and a method of manufacturing the same.
    Type: Application
    Filed: August 23, 2023
    Publication date: December 12, 2024
    Inventors: Yong Guk Gwon, Min Sun Kim, Yong Seok Choi, Young Jin Nam
  • Patent number: 12136691
    Abstract: A system may have an exterior display. The exterior display may display symbols that correspond to intended actions for the system or instructions for nearby viewers. The exterior display may include an array of light-emitting diodes, a collimator, a one-way filter to prevent sunlight from washing out the display, and a cover layer. The one-way filter may include a microlens array and a masking layer. The collimator is configured to collimate light from the array of light-emitting diodes and provide the collimated light to the one-way filter. The microlens array receives the collimated light and focuses the collimated light through a plurality of holes in the masking layer. In this way, the majority of display light is passed through the one-way filter towards a viewer. However, the majority of ambient sunlight is blocked by the masking layer, thus preserving a high contrast for the exterior display even in bright sunlight.
    Type: Grant
    Filed: December 22, 2022
    Date of Patent: November 5, 2024
    Assignee: Apple Inc.
    Inventors: Xiaofeng Tang, Bryce E Wallis, Christopher P Child, Clarisse Mazuir, Kurt R Stiehl, Rong Liu, Yong Seok Choi, Yu P Sun