Patents by Inventor Donghee Hong

Donghee Hong 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: 20200168906
    Abstract: A composite positive active material represented by Formula 1, LiaNibCocMndMeO2??Formula 1 wherein, in Formula 1, M is zirconium (Zr), aluminum (Al), rhenium (Re), vanadium (V), chromium (Cr), iron (Fe), gallium (Ga), silicon (Si), boron (B), ruthenium (Ru), titanium (Ti), niobium (Nb), molybdenum (Mo), magnesium (Mg), or platinum (Pt), 1.1?a?1.3, b+c+d+e?1, 0?b?0.3, 0?c?0.3, 0<d?0.6, and 0?e?0.1, wherein, through atomic interdiffusion of lithium and the metal, the composite positive active material has a uniform distribution of lithium excess regions and a uniform degree of disorder of metal cations, and the metal cations have a disordered, irregular arrangement at an atomic scale. Also a method of preparing the composite positive active material, a positive electrode including the composite positive active material, and a lithium battery including the positive electrode.
    Type: Application
    Filed: October 1, 2019
    Publication date: May 28, 2020
    Inventors: Donghee Yeon, Byoungwoo Kang, Junghwa Lee, Byungjin Choi, Sukgi Hong, Jinsu Ha
  • Publication number: 20200169975
    Abstract: A communication system comprises a clock generator configured to generate a plurality of system clock signals used to synchronize components included in each of communication nodes in the communication system based on an external clock signal provided by an external clock source located outside the communication system and a physical layer configured to transmit any one of the generated system clock signals to a small cell communicatively connected to an end communication node of the communication system.
    Type: Application
    Filed: May 24, 2019
    Publication date: May 28, 2020
    Applicant: SOLiD, INC.
    Inventors: Donghee KWON, Hoopyo HONG
  • Publication number: 20200136132
    Abstract: A composite cathode active material includes: a core including a plurality of primary particles; and a shell on the core, wherein the primary particles include a first lithium transition metal oxide comprising nickel, the shell includes a first layer and a second layer on the first layer, the first layer includes a first composition containing a first metal, the second layer includes a second composition containing phosphorus, and the first metal includes at least one or more metal, other than nickel, belonging to any of Groups 2 to 5 and Groups 7 to 15 of the Periodic Table of the Elements. Also a cathode, and a lithium battery each including the composite cathode active material, and a method of preparing the composite cathode active material.
    Type: Application
    Filed: July 8, 2019
    Publication date: April 30, 2020
    Inventors: Sukgi Hong, Byongyong Yu, Donghee Yeon, Byungjin Choi
  • Publication number: 20200136126
    Abstract: A composite cathode active material includes a secondary particle; and a coating on a surface of the secondary particle, wherein the secondary particle comprises a plurality of primary particles, and the plurality of primary particles include a lithium nickel transition metal oxide having a layered crystal structure; and a grain boundary between primary particles of the plurality of primary particles, the grain boundary including a lithium metal oxide having a crystal structure different from the lithium nickel transition metal oxide having a layered crystal structure, wherein the coating on the surface of the secondary particle includes a metal oxide including cobalt, and a Group 2 element, a Group 12 element, a Group 13 element, or a combination thereof
    Type: Application
    Filed: July 8, 2019
    Publication date: April 30, 2020
    Inventors: Sukgi HONG, Dongwook SHIN, Byongyong YU, Jinhwan PARK, Jayhyok SONG, Donghee YEON, Byungjin CHOI, Jinsu HA, Dongjin HAM
  • Patent number: 7673544
    Abstract: Disclosed is a separation and receiving apparatus for a spent nuclear fuel rod. The spent nuclear fuel rod is mounted and downwardly transferred by a pin. At this time, a blade peels the hull of the spent nuclear fuel rod. The hull and a pellet positioned therein are separated by a separator. The peeled hull and pellet are each received in respective receiving vessels. Accordingly, since the hull and pellet made of uranium oxide (UO2) may be automatically separated and received in each respective vessel, safety and automation may be guaranteed.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: March 9, 2010
    Assignees: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Jaehoo Jung, Jisup Yoon, Younghwan Kim, Jaehyun Jin, Donghee Hong
  • Patent number: 7504079
    Abstract: A vol-oxidizer of spent nuclear fuel, the spent nuclear fuel is injected to a reaction portion, the reaction portion is connected to a driving portion and oxidizes the spent nuclear fuel by rotating and back-rotating the spent nuclear fuel. The oxidized powder of the spent nuclear fuel is gathered in a discharge portion located in a lower portion of the reaction portion. By providing minute powder particles for recycling and a post process of the spent nuclear fuel, even though a size of an apparatus is small, processing a large amount is possible. Time required for oxidation can be reduced, and the powder is readily discharged by gravity since the apparatus is vertically configured.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: March 17, 2009
    Assignees: Korea Atomic Energy Research Institute and Korea Hydro & Nuclear Power Co., Ltd, Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Younghwan Kim, Jisup Yoon, Jaehoo Jung, Donghee Hong, Jaehyun Jin
  • Publication number: 20070110640
    Abstract: A vol-oxidizer of spent nuclear fuel, the spent nuclear fuel is injected to a reaction portion, the reaction portion is connected to a driving portion and oxidizes the spent nuclear fuel by rotating and back-rotating the spent nuclear fuel. The oxidized powder of the spent nuclear fuel is gathered in a discharge portion located in a lower portion of the reaction portion. By providing minute powder particles for recycling and a post process of the spent nuclear fuel, even though a size of an apparatus is small, processing a large amount is possible. Time required for oxidation can be reduced, and the powder is readily discharged by gravity since the apparatus is vertically configured.
    Type: Application
    Filed: July 10, 2006
    Publication date: May 17, 2007
    Applicants: Korea Atomic Energy Research Institute and Korea Hydro & Nuclear Power Co., Ltd., Korea Hydro & Nuclear Power Co., Ltd.
    Inventors: Younghwan Kim, Jisup Yoon, Jaehoo Jung, Donghee Hong, Jaehyun Jin
  • Publication number: 20070092054
    Abstract: Disclosed is a separation and receiving apparatus for a spent nuclear fuel rod. The spent nuclear fuel rod is mounted and downwardly transferred by a pin. At this time, a blade peels the hull of the spent nuclear fuel rod. The hull and a pellet positioned therein are separated by a separator. The peeled hull and pellet are each received in respective receiving vessels. Accordingly, since the hull and pellet made of uranium oxide (UO2) may be automatically separated and received in each respective vessel, safety and automation may be guaranteed.
    Type: Application
    Filed: December 22, 2005
    Publication date: April 26, 2007
    Applicants: Korea Atomic Energy Research Institute, Korea Hydro & Nuclear Power Co., LTD.
    Inventors: Jaehoo Jung, Jisup Yoon, Younghwan Kim, Jaehyun Jin, Donghee Hong