Patents by Inventor Jungkang Oh

Jungkang Oh 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).

  • Electrolyte for lithium ion secondary battery and lithium ion secondary battery comprising the same
    Patent number: 9368834
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.
    Type: Grant
    Filed: May 9, 2014
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinbum Kim, Jungkang Oh
  • ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME
    Publication number: 20140248542
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jinsung KIM, Narae PARK, Jinhyunk LIM, Suhee HAN, Jinbum KIM, Jungkang OH
  • Electrolyte for lithium ion secondary battery and lithium ion secondary battery comprising the same
    Patent number: 8771881
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: July 8, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinbum Kim, Jungkang Oh
  • Electrolyte for lithium ion secondary battery and lithium ion secondary battery comprising the same
    Patent number: 7879499
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; lithium salt; and difluoro oxalato borate and fluoro ethylene carbonate (FEC). The capacity retention property and durability of a lithium ion secondary battery including the electrolyte is excellent even when the battery is left at a high temperature.
    Type: Grant
    Filed: August 13, 2009
    Date of Patent: February 1, 2011
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinbum Kim, Jungkang Oh
  • ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME
    Publication number: 20090305145
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; lithium salt; and difluoro oxalato borate and fluoro ethylene carbonate (FEC). The capacity retention property and durability of a lithium ion secondary battery including the electrolyte is excellent even when the battery is left at a high temperature.
    Type: Application
    Filed: August 13, 2009
    Publication date: December 10, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinbum Kim, Jungkang Oh
  • ELECTROLYTE FOR LITHIUM ION SECONDARY BATTERY AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SAME
    Publication number: 20090291370
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; a lithium salt; and a phosphonitrile fluoride trimer as an additive, and a lithium ion secondary battery comprising the same. The thickness increase rate of a lithium ion secondary battery including the electrolyte is reduced even when the battery is kept at a high temperature. Thus, the thermal stability and durability of the battery are prominently improved. The durability of the battery can be further improved by including a vinylene carbonate or ethylene carbonate group compound in the electrolyte.
    Type: Application
    Filed: October 22, 2008
    Publication date: November 26, 2009
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jinsung KIM, Narae Park, Jinhvunk I-Im, Suhee Han, Jinbum Kim, Jungkang Oh
  • Electrolyte for lithium ion secondary battery and lithium ion secondary battery comprising the same
    Patent number: 7592102
    Abstract: An electrolyte for a lithium ion secondary battery includes a non-aqueous organic solvent; lithium salt; and difluoro oxalato borate and fluoro ethylene carbonate (FEC). The capacity retention property and durability of a lithium ion secondary battery including the electrolyte is excellent even when the battery is left at a high temperature.
    Type: Grant
    Filed: October 23, 2008
    Date of Patent: September 22, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jinsung Kim, Narae Park, Jinhyunk Lim, Suhee Han, Jinburn Kim, Jungkang Oh