Patents by Inventor Sang-Sok Jung

Sang-Sok Jung 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: 20140186670
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on top of the jelly-roll includes a perforated inlet enabling gas discharge and penetration of electrode terminals, a plurality of fine pores having a size that allows permeation of an electrolyte solution, but does not allow permeation of foreign materials, and a plurality of strip or bead shaped protrusions disposed in transverse and/or longitudinal directions on one or both surfaces of the insulator.
    Type: Application
    Filed: June 4, 2012
    Publication date: July 3, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Do Gyun Kim, Dong-Myung Kim, Sang Bong Nam, Dong Sub Lee, Jun Ho Moon, Sang Sok Jung
  • Publication number: 20140178725
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case and a plate-shaped insulator is mounted on top of the jelly-roll, wherein the insulator has a porous structure in which a plurality of fine pores communicate in a longitudinal direction, or in traverse and longitudinal directions.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 26, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
  • Publication number: 20140162102
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a molded article made of a polymer resin or a polymer composite and a plurality of fine pores is perforated through the molded article.
    Type: Application
    Filed: February 11, 2014
    Publication date: June 12, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
  • Publication number: 20140154543
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulator mounted on the top of the jelly-roll includes a woven fabric or a knit fabric made of fibers.
    Type: Application
    Filed: February 4, 2014
    Publication date: June 5, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
  • Publication number: 20130273414
    Abstract: Disclosed is a top cap for cylindrical secondary batteries that is composed of a corrosion-resistant single substance and has a surface with irregularities to impart surface roughness capable of preventing formation of surface scratches, and a secondary battery including the same.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 17, 2013
    Inventors: Jung Ah LEE, Do Gyun KIM, Kwang Su HWANGBO, Sang Sok JUNG, Dong-Myung KIM, Sang Bong NAM
  • Publication number: 20130252055
    Abstract: Disclosed is a secondary battery having a structure in which a jelly-roll having a cathode/separator/anode structure is mounted in a cylindrical battery case, wherein a plate-shaped insulating member is mounted on the top of the jelly-roll and the insulating member includes a perforated inlet enabling gas discharge and penetration of electrode terminals and a plurality of pores with a diameter of 100 ?m or less provided over the entire surface of the insulating member.
    Type: Application
    Filed: May 31, 2013
    Publication date: September 26, 2013
    Inventors: Do Gyun KIM, Dong-Myung KIM, Dong Sub LEE, Sang Bong NAM, Sang Sok JUNG
  • Patent number: 8323825
    Abstract: A secondary battery comprising: an electrode assembly; a can to house the electrode assembly; and a cap assembly to seal the can. The cap assembly includes a vent plate. The vent plate includes a concave deforming portion, a protrusion formed in the center of the deforming portion, and a notch formed around the deforming portion.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: December 4, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Sang-Sok Jung
  • Patent number: 8313851
    Abstract: A lithium rechargeable battery including an electrode assembly having a first and second electrodes wound together with a separator interposed between them, a can containing the electrode assembly, and a cap plate coupled to the top opening of the can. The cap plate includes an electrolyte injection hole and a rib formed adjacent to the electrolyte injection hole.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: November 20, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang Sok Jung, Se Yun Kim
  • Patent number: 8313852
    Abstract: A lithium rechargeable battery includes an insulation case positioned on top of an electrode assembly where the insulation case has least one hole to improve the stability of the battery by evacuating gas that may be generated by the electrode assembly.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: November 20, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang Sok Jung, Se Yun Kim
  • Publication number: 20120244424
    Abstract: A lithium rechargeable battery in which an anti-rotation groove is integrally formed with a lower recess of a safety vent at a lower surface of a cap plate, and an insulating plate and a terminal plate rest in the anti-rotation groove so that the terminal plate is prevented from rotating when a cap assembly is assembled is provided. In addition, instead of the anti-rotation groove, a resting recess is formed on a lower surface of the cap plate, and the insulating plate and the terminal plate rest in the resting recess, so that the terminal plate is prevented from rotating when the cap assembly is assembled.
    Type: Application
    Filed: June 11, 2012
    Publication date: September 27, 2012
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Sung Jae CHO, Sang Sok JUNG, Shin Gun KANG
  • Patent number: 8216705
    Abstract: A lithium rechargeable battery in which an anti-rotation groove is integrally formed with a lower recess of a safety vent at a lower surface of a cap plate, and an insulating plate and a terminal plate rest in the anti-rotation groove so that the terminal plate is prevented from rotating when a cap assembly is assembled is provided. In addition, instead of the anti-rotation groove, a resting recess is formed on a lower surface of the cap plate, and the insulating plate and the terminal plate rest in the resting recess, so that the terminal plate is prevented from rotating when the cap assembly is assembled.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: July 10, 2012
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sung Jae Cho, Sang Sok Jung, Shin Gun Kang
  • Publication number: 20120070704
    Abstract: A lithium rechargeable battery includes an insulation case positioned on top of an electrode assembly where the insulation case has least one hole to improve the stability of the battery by evacuating gas that may be generated by the electrode assembly.
    Type: Application
    Filed: November 29, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Sang Sok JUNG, Se Yun KIM
  • Patent number: 8084155
    Abstract: A lithium rechargeable battery includes an insulation case positioned on top of an electrode assembly where the insulation case has least one hole to improve the stability of the battery by evacuating gas that may be generated by the electrode assembly.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: December 27, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang Sok Jung, Se Yun Kim
  • Patent number: 7964306
    Abstract: A lithium rechargeable battery includes an electrode assembly, a can containing the electrode assembly, a cap plate coupled to the top opening of the can and provided with a terminal through-hole, and an electrode pin inserted into the terminal through-hole. The electrode pin has a head shaped like a flat plate, a post extending from the lower surface of the head, and a protrusion formed along the edge of the upper surface of the head.
    Type: Grant
    Filed: March 8, 2006
    Date of Patent: June 21, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang Sok Jung, Se Yun Kim
  • Patent number: 7648794
    Abstract: A cap assembly and a lithium secondary battery with the same, in which a shape of a safety vent of a cap plate is such that the safety vent is easily fracturable under low pressure even if the safety vent has a relatively large thickness, thereby improving reliability and safety of the lithium secondary battery. The cap assembly cap plate has a safety vent including at least one first directional weak component and at least one second directional weak component which is connected to the first directional weak component.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: January 19, 2010
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Se Yun Kim, Sang Sok Jung
  • Patent number: 7592096
    Abstract: A lithium ion secondary battery includes: an electrode assembly having first electrodes, second electrodes, and separators interposed between each of the first electrodes and each of the second electrodes; a can containing the electrode assembly; a cap assembly having a cap plate and a first electrode terminal having a first polarity insulated from the cap plate, the cap assembly covering a top opening of the can; and a battery accessory mounted on the cap assembly. At least one protrusion is provided on an upper surface of the cap plate, and the protrusion is combined in a complementary manner with a corresponding member of the battery accessory. As a result, it is possible to easily engage the battery accessories with the bare cell, and to easily perform subsequent processes using the complementary engagement.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: September 22, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Sok Jung, Se-Yun Kim
  • Publication number: 20090117451
    Abstract: A secondary battery comprising: an electrode assembly; a can to house the electrode assembly; and a cap assembly to seal the can. The cap assembly includes a vent plate. The vent plate includes a concave deforming portion, a protrusion formed in the center of the deforming portion, and a notch formed around the deforming portion.
    Type: Application
    Filed: September 24, 2008
    Publication date: May 7, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventor: Sang-Sok JUNG
  • Publication number: 20060083982
    Abstract: A lithium ion secondary battery includes: an electrode assembly having first electrodes, second electrodes, and separators interposed between each of the first electrodes and each of the second electrodes; a can containing the electrode assembly; a cap assembly having a cap plate and a first electrode terminal having a first polarity insulated from the cap plate, the cap assembly covering a top opening of the can; and a battery accessory mounted on the cap assembly. At least one protrusion is provided on an upper surface of the cap plate, and the protrusion is combined in a complementary manner with a corresponding member of the battery accessory. As a result, it is possible to easily engage the battery accessories with the bare cell, and to easily perform subsequent processes using the complementary engagement.
    Type: Application
    Filed: October 17, 2005
    Publication date: April 20, 2006
    Inventors: Sang-Sok Jung, Se-Yun Kim