Patents by Inventor Hak-Seok Kang

Hak-Seok Kang 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).

  • Composite metal precursor, electrode active material prepared from the same, positive electrode including the same, and lithium secondary battery employing the same
    Patent number: 9419277
    Abstract: A composite metal precursor including a composite metal hydroxide represented by Formula 1 below, wherein an amount of magnesium (Mg) in the composite metal hydroxide is less than or equal to 0.005 wt %, an electrode active material formed from the same, a positive electrode including the same, and a lithium secondary battery employing the same: (A1-x-yBxCy)(OH)2??[Formula 1] wherein in Formula 1, x, y, A, B, and C are as described in the detailed description.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: August 16, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hak-Seok Kang, Heung-Min Oh, Young-Hoon Do, Myung-Hun Bae, Suk-Chul Jung
  • Positive active material for rechargeable lithium battery and recharge lithium battery including the same
    Patent number: 9203089
    Abstract: A positive active material for a rechargeable lithium battery including a lithium-nickel cobalt manganese composite metal oxide; and 0.18 to 0.25 wt % of sulfur is provided.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Suk-Chul Jung, Young-Chul You, Hak-Seok Kang, Heung-Min Oh, Young-Hoon Do, Tae-Jin Jung
  • COMPOSITE METAL PRECURSOR, ELECTRODE ACTIVE MATERIAL PREPARED FROM THE SAME, POSITIVE ELECTRODE INCLUDING THE SAME, AND LITHIUM SECONDARY BATTERY EMPLOYING THE SAME
    Publication number: 20130302683
    Abstract: A composite metal precursor including a composite metal hydroxide represented by Formula 1 below, wherein an amount of magnesium (Mg) in the composite metal hydroxide is less than or equal to 0.005 wt %, an electrode active material formed from the same, a positive electrode including the same, and a lithium secondary battery employing the same: (A1-x-yBxCy)(OH)2 ??[Formula 1] wherein in Formula 1, x, y, A, B, and C are as described in the detailed description.
    Type: Application
    Filed: January 25, 2013
    Publication date: November 14, 2013
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Hak-Seok Kang, Heung-Min Oh, Young-Hoon Do, Myung-Hun Bae, Suk-Chul Jung
  • Positive active material for rechargeable lithium battery and recharge lithium battery including the same
    Publication number: 20120231351
    Abstract: A positive active material for a rechargeable lithium battery including a lithium-nickel cobalt manganese composite metal oxide; and 0.18 to 0.25 wt % of sulfur is provided.
    Type: Application
    Filed: September 23, 2011
    Publication date: September 13, 2012
    Inventors: Suk-Chul Jung, Young-Chul You, Hak-Seok Kang, Heung-Min Oh, Young-Hoon Do, Tae-Jin Jung