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).

  • 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: 20170110711
    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: Application
    Filed: June 8, 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
  • 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
  • Publication number: 20160211502
    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: Application
    Filed: July 31, 2015
    Publication date: July 21, 2016
    Inventors: Sung Min CHOI, Ik Kyu KIM, Seung Ho AHN, Hong Seok MIN
  • Patent number: 9385361
    Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly having an uncoated region, a case accommodating the electrode assembly therein and an insulation plate disposed on the uncoated region of the electrode assembly. The battery also includes a gasket formed on the insulation plate, wherein the gasket comprises a support supported by and contacting an upper surface of the insulation plate, wherein the support comprises an inner side surface and an outer side surface, and wherein at least one of the inner and outer side surfaces forms an obtuse angle with respect to the upper surface of the insulation plate. The battery further includes a cap assembly contacting the gasket and connected to the uncoated region of the electrode assembly through a lead tab.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: July 5, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ik-Kyu Kim, Seok-Joon Yoon
  • Publication number: 20160149201
    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: Application
    Filed: April 4, 2015
    Publication date: May 26, 2016
    Inventors: Hong Seok Min, Ik Kyu Kim, Sung Min Choi, Seung Ho Ahn
  • Publication number: 20160141593
    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: Application
    Filed: August 9, 2015
    Publication date: May 19, 2016
    Inventors: Hong Seok Min, Ik Kyu Kim, Sung Min Choi, Seung Ho Ahn
  • Publication number: 20160046201
    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: Application
    Filed: December 12, 2014
    Publication date: February 18, 2016
    Inventors: Hong Seok Min, Seung Ho Ahn, Sung Min Choi, Ik Kyu Kim
  • Patent number: 8999564
    Abstract: Disclosed is a secondary battery. The secondary battery includes an electrode assembly including a first plate, a second plate, and a separator disposed between the first and second plates, a battery case accommodating the electrode assembly and an electrolyte, a cap assembly sealing an opening formed on one side of the battery case, and a gasket disposed between the cap assembly and the battery case. The battery case includes a crimping part formed on an upper portion of the battery case, and the crimping part is disposed on the gasket. A ratio of a second thickness of the gasket to a first thickness of the gasket is greater than 1.8 and is less than 4.8. The first thickness is a length between an internal surface of the battery case and an outermost edge of the cap assembly, and the second thickness is a length between the internal surface of the battery case and an outermost tip of the crimping part.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: April 7, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ik-Kyu Kim, Seok-Joon Yoon
  • Publication number: 20140186692
    Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly having an uncoated region, a case accommodating the electrode assembly therein and an insulation plate disposed on the uncoated region of the electrode assembly. The battery also includes a gasket formed on the insulation plate, wherein the gasket comprises a support supported by and contacting an upper surface of the insulation plate, wherein the support comprises an inner side surface and an outer side surface, and wherein at least one of the inner and outer side surfaces forms an obtuse angle with respect to the upper surface of the insulation plate. The battery further includes a cap assembly contacting the gasket and connected to the uncoated region of the electrode assembly through a lead tab.
    Type: Application
    Filed: September 17, 2013
    Publication date: July 3, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Ik-Kyu Kim, Seok-Joon Yoon
  • Publication number: 20120094169
    Abstract: Disclosed is a secondary battery. The secondary battery includes an electrode assembly including a first plate, a second plate, and a separator disposed between the first and second plates, a battery case accommodating the electrode assembly and an electrolyte, a cap assembly sealing an opening formed on one side of the battery case, and a gasket disposed between the cap assembly and the battery case. The battery case includes a crimping part formed on an upper portion of the battery case, and the crimping part is disposed on the gasket. A ratio of a second thickness of the gasket to a first thickness of the gasket is greater than 1.8 and is less than 4.8. The first thickness is a length between an internal surface of the battery case and an outermost edge of the cap assembly, and the second thickness is a length between the internal surface of the battery case and an outermost tip of the crimping part.
    Type: Application
    Filed: April 8, 2011
    Publication date: April 19, 2012
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Ik-Kyu Kim, Seok-Joon Yoon
  • Publication number: 20090297927
    Abstract: A cap assembly and a secondary battery having the same, the cap assembly including a vent that breaks at a relatively low, uniform, breaking pressure. The vent includes a body, a connecting part that extends from an edge of the body and is bent towards the body, and a flange that extends from the connecting part and is bent away from the body. The connecting part is thinner than the body and the flange. The secondary battery includes an electrode assembly, a can to house the electrode assembly, and the cap assembly to seal the can.
    Type: Application
    Filed: February 11, 2009
    Publication date: December 3, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Dae-Kyu Kim, Ik-Kyu Kim
  • Patent number: 7614313
    Abstract: A method and apparatus for generating and measuring a torsional wave in a rod, shaft or pipe using magnetostriction are provided. The magnetostrictive transducer includes at least one strip attached to a predetermined position of a rod member, an insulator disposed around the strip, a coil wound around the insulator, and magnets providing a bias magnetic field to the strip, wherein a plurality of strips are attached to the rod member at predetermined intervals in a circumferential direction, and one pole of the magnet is close to an end of a first strip among the plurality of strips, and another pole of the magnet is close to an end of a second strip among the plurality of strips.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: November 10, 2009
    Assignee: Seoul National University Industry Foundation
    Inventors: Yoon-Young Kim, Seung-Hyun Cho, Ik-Kyu Kim, Chan-Il Park
  • Publication number: 20070090904
    Abstract: A method and apparatus for generating and measuring a torsional wave in a rod, shaft or pipe using magnetostriction are provided. The magnetostrictive transducer includes at least one strip attached to a predetermined position of a rod member, an insulator disposed around the strip, a coil wound around the insulator, and magnets providing a bias magnetic field to the strip, wherein a plurality of strips are attached to the rod member at predetermined intervals in a circumferential direction, and one pole of the magnet is close to an end of a first strip among the plurality of strips, and another pole of the magnet is close to an end of a second strip among the plurality of strips.
    Type: Application
    Filed: September 21, 2006
    Publication date: April 26, 2007
    Applicant: SEOUL NATIONAL UNIVERSITY INDUSTRY FOUNDATION
    Inventors: Yoon-Young Kim, Seung-Hyun Cho, Ik-Kyu Kim, Chan-Il Park