Patents by Inventor Ik-Kyu Kim

Ik-Kyu Kim 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: 11114139
    Abstract: A stacked memory device includes: a logic semiconductor die; a plurality of memory semiconductor dies stacked with the logic semiconductor die, wherein each of the memory semiconductor dies includes a memory integrated circuit and one or more of the memory semiconductor dies is a calculation semiconductor die including a calculation unit; and through-silicon vias electrically connecting the logic semiconductor die and the plurality of memory semiconductor dies, wherein each of the calculation units is configured to perform calculations based on broadcast data and internal data and to generate calculation result data, wherein the broadcast data is commonly provided to the calculation semiconductor dies through the through-silicon vias, and the internal data is respectively read from the memory integrated circuits of the calculation semiconductor dies.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: September 7, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyun-Sung Shin, Ik-Joon Choi, So-Young Kim, Tae-Kyu Byun, Jae-Youn Youn
  • Publication number: 20210184261
    Abstract: Disclosed are an electrolyte solution for lithium secondary batteries capable of increasing the lifetime of the lithium secondary batteries and a lithium secondary battery including the same. Provided is an electrolyte solution for lithium secondary batteries including a lithium salt, a solvent and allyl(4-(1,3-bis(4-(((allyloxy)carbonyl)oxy)-5-(tert-butyl)-2-methylphenyl)butyl)-2-(tert-butyl)-5-methylphenyl) represented by the following Formula 1.
    Type: Application
    Filed: June 10, 2020
    Publication date: June 17, 2021
    Inventors: Yoon Sung Lee, Ik Kyu Kim, Seung Min Oh, Young Woo Lee, Dong Jun Kim, Sung Ho Ban, Sung Hoon Lim
  • Publication number: 20210184262
    Abstract: Disclosed are an electrolyte solution for lithium secondary batteries capable of increasing the lifetime of the lithium secondary batteries and a lithium secondary battery including the same. Provided is an electrolyte solution for lithium secondary batteries including a lithium salt, a solvent and allyl(4-nitrophenyl) carbonate represented by the following Formula 1.
    Type: Application
    Filed: June 10, 2020
    Publication date: June 17, 2021
    Inventors: Yoon Sung Lee, Ik Kyu Kim, Seung Min Oh, Young Woo Lee, Dong Jun Kim, Sung Ho Ban, Sung Hoon Lim
  • Publication number: 20210184211
    Abstract: Provided are, inter alia, a positive electrode material for a lithium secondary battery having a high energy density with only a single positive electrode material, and a lithium secondary battery including the same. The positive electrode material for a lithium secondary battery includes a positive electrode active material formed of a Li—[Mn—Ti]—O-based material so that lithium is reversibly intercalated and deintercalated, and particularly, the positive electrode active material is doped with a dopant (Me) having an oxidation number of 2 to 6.
    Type: Application
    Filed: May 26, 2020
    Publication date: June 17, 2021
    Inventors: Seung Min Oh, Sang Mok Park, Ik Kyu Kim, Yeol Mae Yeo, Yoon Sung Lee, Dong Jun Kim, Sa Heum Kim, Ji Eun Lee, Seung Taek Myung, Ji Ung Choi
  • Publication number: 20210184206
    Abstract: Disclosed are an anode material for a lithium secondary battery and a method of manufacturing the same. For instance, the lithium secondary batter may have a high energy density by using only a single anode material. Particularly, the anode material for a lithium secondary battery includes a Li—[Mn—Ti]—Al—O-based anode active material; and a carbon nanotube (CNT) attached to the surface of the anode active material in an acid-treated state to be formed as a composite.
    Type: Application
    Filed: July 14, 2020
    Publication date: June 17, 2021
    Inventors: Seung Min Oh, Ik Kyu Kim, Yeol Mae Yeo, Sang Mok Park, Yoon Sung Lee, Nam Hyeong Kim, Ji Eun Lee, Dong Jun Kim, Seung Taek Myung, Ji Ung Choi
  • Publication number: 20210184264
    Abstract: Disclosed are an electrolyte solution for lithium secondary batteries capable of increasing the lifetime of the lithium secondary batteries and a lithium secondary battery including the same. Provided also is an electrolyte solution for lithium secondary batteries including a lithium salt, a solvent and a negative-electrode additive. The negative-electrode additive preferably includes bis(4-(trifluoromethoxy)phenyl) oxalate represented by the following Formula 1.
    Type: Application
    Filed: June 15, 2020
    Publication date: June 17, 2021
    Inventors: Yoon Sung Lee, Seung Min Oh, Nam Hyeong Kim, Dong Jun Kim, Sung Ho Ban, Ik Kyu Kim, Ji Eun Lee
  • Publication number: 20210156925
    Abstract: Disclosed are a method for checking defects in a lithium ion secondary battery and a lithium ion secondary battery manufactured thereby. The method includes primarily charging and degassing the lithium ion secondary battery after manufacture of the secondary battery, secondarily charging and discharging the secondary battery and then measuring one or more of OCVs and IRs of lithium ion secondary battery cells; pressurizing and aging the secondary battery by aging the secondary battery in a state in which a pressure of a designated magnitude or more is applied to the secondary battery, and checking whether or not the secondary battery cells are defective by re-measuring the one or more of OCVs and IRs of the secondary battery cells and then comparing the re-measured one or more of the OCVs and the IRs to the previously measured one or more of the OCVs and the IRs.
    Type: Application
    Filed: April 1, 2020
    Publication date: May 27, 2021
    Inventors: Sang Mok Park, Young Woo Lee, Ik Kyu Kim, Sung Ho Ban, Yoon Ji Lee, Jung Young Cho
  • Publication number: 20210151796
    Abstract: An electrolytic solution is disclosed. The electrolytic solution can be used, for example, in a lithium secondary battery.
    Type: Application
    Filed: May 26, 2020
    Publication date: May 20, 2021
    Inventors: Yoon Sung Lee, Yeol Mae Yeo, Seung Min Oh, Ik Kyu Kim, Ji Eun Lee, Nam Hyeong Kim, Dong Jun Kim, Seung Wan Song, Gyeong Jun Chung
  • Patent number: 10340500
    Abstract: A pouch battery having improved overcharging safety includes a CID interrupting an electrical connection between an electrode assembly and a lead tab when the pouch is expanded. When the pouch is expanded, the CID discharges gas generated inside the pouch to the outside, and at the time of overcharging a secondary battery, the CID interrupts a flow of current introduced into the secondary battery and discharges the gas generated due to the overcharging to the outside of the pouch, thereby reducing an ignition risk and improving the overcharging safety.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: July 2, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Min Choi, Ik Kyu Kim, Seung Ho Ahn, Hong Seok Min
  • Patent number: 10320037
    Abstract: An overcharge safety device includes a switch electrically connecting a lead tap of a battery cell with a bus bar, and includes a guide member connected with the switch and movable as a pouch of the battery cell swells. As the pouch of the battery cell swells, the guide member moves toward the bus bar to disconnect the switch from the lead tap.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: June 11, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Min Choi, Hong Seok Min, Oh Min Kwon, Ik Kyu Kim, Seung Ho Ahn
  • Patent number: 10224534
    Abstract: A swelling current interrupt device (CID) includes: a battery unit connection terminal configured to be fixed to a pouch; and a lead tab connection terminal configured to be fixed to the pouch and electrically connected to the battery unit connection terminal, wherein any one of the battery unit connection terminal and the lead tab connection terminal is broken by an expansion force of the pouch which is generated when the pouch expands to interrupt the electrical connection between the battery unit connection terminal and the lead tab connection terminal.
    Type: Grant
    Filed: April 4, 2015
    Date of Patent: March 5, 2019
    Assignee: Hyundai Motor Company
    Inventors: Hong Seok Min, Ik Kyu Kim, Sung Min Choi, Seung Ho Ahn
  • Patent number: 10193189
    Abstract: The present disclosure relates to a battery cell. The battery cell includes: an electrode assembly; a pouch which wraps around the electrode assembly; an electrode tab extended from the electrode assembly; a lead tab attached to the electrode tab; and a current interrupt device which is configured to block reconnection of the lead tab and the electrode tab when the pouch is shrunk to return to an original position after being expanded, while blocking current flow by separating the lead tab and the electrode tab through the expansion of the pouch, when abnormal situation of battery cell occurs.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 29, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Min Choi, Ik Kyu Kim, Seung Ho Ahn, Hong Seok Min
  • Patent number: 10147916
    Abstract: A battery cell includes: an electrode assembly; a pouch case accommodating the electrode assembly therein; and an electrode lead including an outer lead protruding to an outside of the pouch case and an inner lead disposed between the outer lead and the electrode assembly, accommodated in the pouch case, bent plural times in a direction in which it connects the electrode assembly and the outer lead to each other, and cut by expansion force of the pouch case.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: December 4, 2018
    Assignee: Hyundai Motor Company
    Inventors: Seung Ho Ahn, Ik Kyu Kim, Woo Jin Shin, Hong Seok Min, Sung Min Choi, Jung Je Woo, Jung Young Cho, Se Jung Oh, Hoi Suk Han
  • Patent number: 10109842
    Abstract: A battery cell includes: an electrode assembly; a pouch case accommodating the electrode assembly therein; and an electrode lead including an outer lead protruding to an outside of the pouch case and an inner lead disposed between the outer lead and the electrode assembly, accommodated in the pouch case, and cut by expansion force of the pouch case.
    Type: Grant
    Filed: June 8, 2016
    Date of Patent: October 23, 2018
    Assignee: Hyundai Motor Company
    Inventors: Seung Ho Ahn, Ik Kyu Kim, Woo Jin Shin, Hong Seok Min, Sung Min Choi, Jung Je Woo, Jung Young Cho
  • Patent number: 10059217
    Abstract: A system for controlling a battery to extend a driving mileage is provided. The system supplies a high voltage required to drive a motor by connecting a plurality of batteries in series by turning off a battery switching unit during engaged of an accelerator and balances voltage between the plurality of batteries. A voltage deviation is managed by connecting the plurality of batteries in parallel by turning on the battery switching unit when the accelerator is disengaged. The system includes a plurality of battery modules and a battery switching unit configured to connect the plurality of battery modules in parallel when an accelerator is disengaged and connect the plurality of battery modules in series when the accelerator is engaged. A motor driving unit is configured to receive an output by the battery switching unit when the accelerator is engaged.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: August 28, 2018
    Assignee: Hyundai Motor Company
    Inventors: Hong Seok Min, Seung Ho Ahn, Sung Min Choi, Ik Kyu Kim
  • Publication number: 20180159185
    Abstract: An overcharge safety device includes a switch electrically connecting a lead tap of a battery cell with a bus bar, and includes a guide member connected with the switch and movable as a pouch of the battery cell swells. As the pouch of the battery cell swells, the guide member moves toward the bus bar to disconnect the switch from the lead tap.
    Type: Application
    Filed: June 5, 2017
    Publication date: June 7, 2018
    Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION
    Inventors: Sung Min Choi, Hong Seok Min, Oh Min Kwon, Ik Kyu Kim, Seung Ho Ahn
  • Publication number: 20180090793
    Abstract: The present disclosure relates to a battery cell. The battery cell includes: an electrode assembly; a pouch which wraps around the electrode assembly; an electrode tab extended from the electrode assembly; a lead tab attached to the electrode tab; and a current interrupt device which is configured to block reconnection of the lead tab and the electrode tab when the pouch is shrunk to return to an original position after being expanded, while blocking current flow by separating the lead tab and the electrode tab through the expansion of the pouch, when abnormal situation of battery cell occurs.
    Type: Application
    Filed: November 29, 2016
    Publication date: March 29, 2018
    Applicant: HYUNDAI MOTOR COMPANY
    Inventors: Sung Min CHOI, Ik Kyu KIM, Seung Ho AHN, Hong Seok MIN
  • Patent number: 9741995
    Abstract: A battery system improving operation reliability of a swelling current interrupt device (CID) is provided. The battery system includes a cooling plate that forms an appearance of a battery in which the swelling CID interrupting a current flow is mounted and includes a swelling aperture formed therein. The swelling aperture induces an expansion of a pouch in which the swelling CID is embedded. Therefore, since the swelling aperture is formed in the cooling plate, improved operation reliability of the swelling CID than a battery system according to related art in which operation reliability was varied based on a thickness of a pouch cell is obtained.
    Type: Grant
    Filed: August 9, 2015
    Date of Patent: August 22, 2017
    Assignee: Hyundai Motor Company
    Inventors: Hong Seok Min, Ik Kyu Kim, Sung Min Choi, Seung Ho Ahn
  • Publication number: 20170117515
    Abstract: A battery cell includes: an electrode assembly; a pouch case accommodating the electrode assembly therein; and an electrode lead including an outer lead protruding to an outside of the pouch case and an inner lead disposed between the outer lead and the electrode assembly, accommodated in the pouch case, bent plural times in a direction in which it connects the electrode assembly and the outer lead to each other, and cut by expansion force of the pouch case.
    Type: Application
    Filed: May 25, 2016
    Publication date: April 27, 2017
    Inventors: Seung Ho Ahn, Ik Kyu Kim, Woo Jin Shin, Hong Seok Min, Sung Min Choi, Jung Je Woo, Jung Young Cho, Se Jung Oh, Hoi Suk Han
  • Publication number: 20170110712
    Abstract: A battery cell is provided that includes an electrode assembly and a pouch case that accommodates the electrode assembly therein. Additionally, an electrode lead including an outer lead that protrudes outside the pouch case is provided and an inner lead is disposed between the outer lead and the electrode assembly, accommodated in the pouch case, and cut by tension applied when the pouch case expands.
    Type: Application
    Filed: September 30, 2016
    Publication date: April 20, 2017
    Inventors: Seung Ho Ahn, Ik Kyu Kim, Woo Jin Shin, Hong Seok Min, Sung Min Choi, Jung Je Woo, Jung Young Cho