Patents by Inventor Jeon-Jin Choi

Jeon-Jin Choi 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 cathode active material, lithium battery including the same, and method of preparing the same
    Patent number: 9991511
    Abstract: A composite cathode active material includes: a core including a material capable of intercalation and deintercalation of lithium; and a first coating layer on at least one portion of the core, where the first coating layer includes zirconium oxide. A lithium battery includes a cathode including the composite cathode active material. Methods of preparing the composite cathode active material are also disclosed.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: June 5, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Yu-Mi Song, Ming-Zi Hong, Jeong-Hoon Kim, Do-Hyung Park, Min-Han Kim, Joong-Ho Moon, Han-Eol Park, Kyoung-Hyun Kim, Dong-Jin Kim, Jeon-Jin Choi, Gyu-Ran Jeon, Sun-Ho Kang
  • Composite cathode active material, cathode and lithium battery comprising the same, and preparation method thereof
    Patent number: 9979014
    Abstract: A composite cathode active material including a core comprising a lithium compound, and a coating layer formed on at least one portion of the core and including at least two oxide phases having different structures, a cathode and a lithium battery including the same, and a method of preparing the composite cathode active material.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: May 22, 2018
    Assignee: SAMSUNG SDI Co., LTD.
    Inventors: Min-Han Kim, Joong-Ho Moon, Han-Eol Park, Kyoung-Hyun Kim, Do-Hyung Park, Yu-Mi Song, Ming-Zi Hong, Jeong-Hoon Kim, Dong-Jin Kim, Jeon-Jin Choi, Gyu-Ran Jeon, Sun-Ho Kang
  • COMPOSITE CATHODE ACTIVE MATERIAL, LITHIUM BATTERY INCLUDING THE SAME, AND METHOD OF PREPARING THE SAME
    Publication number: 20150340689
    Abstract: A composite cathode active material includes: a core including a material capable of intercalation and deintercalation of lithium; and a first coating layer on at least one portion of the core, where the first coating layer includes zirconium oxide. A lithium battery includes a cathode including the composite cathode active material. Methods of preparing the composite cathode active material are also disclosed.
    Type: Application
    Filed: March 16, 2015
    Publication date: November 26, 2015
    Inventors: Yu-Mi Song, Ming-Zi Hong, Jeong-Hoon Kim, Do-Hyung Park, Min-Han Kim, Joong-Ho Moon, Han-Eol Park, Kyoung-Hyun Kim, Dong-Jin Kim, Jeon-Jin Choi, Gyu-Ran Jeon, Sun-Ho Kang
  • COMPOSITE CATHODE ACTIVE MATERIAL, CATHODE AND LITHIUM BATTERY COMPRISING THE SAME, AND PREPARATION METHOD THEREOF
    Publication number: 20150171423
    Abstract: A composite cathode active material including a core comprising a lithium compound, and a coating layer formed on at least one portion of the core and including at least two oxide phases having different structures, a cathode and a lithium battery including the same, and a method of preparing the composite cathode active material.
    Type: Application
    Filed: August 28, 2014
    Publication date: June 18, 2015
    Inventors: Min-Han Kim, Joong-Ho Moon, Han-Eol Park, Kyoung-Hyun Kim, Do-Hyung Park, Yu-Mi Song, Ming-Zi Hong, Jeong-Hoon Kim, Dong-Jin Kim, Jeon-Jin Choi, Gyu-Ran Jeon, Sun-Ho Kang