Patents by Inventor Yun-Jung Kwak

Yun-Jung Kwak 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: 9728765
    Abstract: A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode, a case configured to receive the electrode assembly, a first current collecting member including a first fuse unit coupled to the first electrode and having a cross-sectional area that is smaller than a cross-sectional area of a periphery of the first current collecting member, and a second current collecting member including a second fuse unit coupled to the second electrode and having a cross-sectional area that is smaller than a cross-sectional area of a periphery of the second current collecting member, in which the first fuse unit is configured to melt more quickly than the second fuse unit at a first current, and the second fuse unit is configured to melt more quickly than the first fuse unit at a second current that is lower than the first current.
    Type: Grant
    Filed: December 3, 2014
    Date of Patent: August 8, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Won Byun, Jeong-Won Oh, Min-Seok Koo, Yun-Jung Kwak
  • Patent number: 9525161
    Abstract: Disclosed is a rechargeable battery including a case, an electrode assembly accommodated in the case, a first terminal unit electrically coupled to the electrode assembly, and a first current collector including a first portion coupled with the electrode assembly, a second portion coupled with the first terminal unit, and a connection unit coupling the first portion and the second portion and having a thickness that is greater than the thickness of the first portion.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: December 20, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chi-Young Lee, Seok-Yoon Yoo, Yun-Jung Kwak, Jeong-Won Oh
  • Patent number: 9466823
    Abstract: A rechargeable battery including an electrode assembly, a case housing the electrode assembly, a cap plate coupled to the case, a first electrode terminal on the cap plate, and a first lead tab electrically connecting the electrode assembly and the first electrode terminal, wherein the first lead tab has a cell fuse and a heat dissipating member coupled to the first lead tab and spaced from the cell fuse.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: October 11, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yun-Jung Kwak, Jeong-Won Oh, Seok-Yoon Yoo, Chi-Young Lee, Min-Seok Koo
  • Patent number: 9225002
    Abstract: A rechargeable battery includes: an electrode assembly including first and second electrodes; a case containing the electrode assembly; a cap plate covering an opening of the case; a first terminal protruding outside of the case and electrically coupled to the first electrode; a second terminal protruding outside of the case and electrically coupled to the second electrode; a current collector including first and second fuse units, and electrically coupled to the first electrode, wherein the first fuse unit and the second fuse unit each have a cross-sectional area smaller than a cross-sectional area of an adjacent region and are spaced from each other; and a connector coupled to the current collector between the first fuse unit and the second fuse unit, and adapted to electrically couple the cap plate and the current collector, wherein a resistance of the connector is less than that of the first terminal.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: December 29, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Won Byun, Min-Hyung Guen, Yong-Chul Seo, Yun-Jung Kwak
  • Publication number: 20150280204
    Abstract: A rechargeable battery includes: an electrode assembly including a first electrode and a second electrode, a case configured to receive the electrode assembly, a first current collecting member including a first fuse unit coupled to the first electrode and having a cross-sectional area that is smaller than a cross-sectional area of a periphery of the first current collecting member, and a second current collecting member including a second fuse unit coupled to the second electrode and having a cross-sectional area that is smaller than a cross-sectional area of a periphery of the second current collecting member, in which the first fuse unit is configured to melt more quickly than the second fuse unit at a first current, and the second fuse unit is configured to melt more quickly than the first fuse unit at a second current that is lower than the first current.
    Type: Application
    Filed: December 3, 2014
    Publication date: October 1, 2015
    Inventors: Sang-Won Byun, Jeong-Won Oh, Min-Seok Koo, Yun-Jung Kwak
  • Publication number: 20150118528
    Abstract: A rechargeable battery includes: an electrode assembly including first and second electrodes; a case containing the electrode assembly; a cap plate covering an opening of the case; a first terminal protruding outside of the case and electrically coupled to the first electrode; a second terminal protruding outside of the case and electrically coupled to the second electrode; a current collector including first and second fuse units, and electrically coupled to the first electrode, wherein the first fuse unit and the second fuse unit each have a cross-sectional area smaller than a cross-sectional area of an adjacent region and are spaced from each other; and a connector coupled to the current collector between the first fuse unit and the second fuse unit, and adapted to electrically couple the cap plate and the current collector, wherein a resistance of the connector is less than that of the first terminal.
    Type: Application
    Filed: April 17, 2014
    Publication date: April 30, 2015
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Sang-Won Byun, Min-Hyung Guen, Yong-Chul Seo, Yun-Jung Kwak
  • Publication number: 20150024259
    Abstract: Disclosed is a rechargeable battery including a case, an electrode assembly accommodated in the case, a first terminal unit electrically coupled to the electrode assembly, and a first current collector including a first portion coupled with the electrode assembly, a second portion coupled with the first terminal unit, and a connection unit coupling the first portion and the second portion and having a thickness that is greater than the thickness of the first portion.
    Type: Application
    Filed: January 7, 2014
    Publication date: January 22, 2015
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Chi-Young Lee, Seok-Yoon Yoo, Yun-Jung Kwak, Jeong-Won Oh
  • Publication number: 20140242426
    Abstract: A rechargeable battery including an electrode assembly, a case housing the electrode assembly, a cap plate coupled to the case, a first electrode terminal on the cap plate, and a first lead tab electrically connecting the electrode assembly and the first electrode terminal, wherein the first lead tab has a cell fuse and a heat dissipating member coupled to the first lead tab and spaced from the cell fuse.
    Type: Application
    Filed: August 8, 2013
    Publication date: August 28, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Yun-Jung Kwak, Jeong-Won Oh, Seok-Yoon Yoo, Chi-Young Lee, Min-Seok Koo