Patents by Inventor Jaekyung SUNG

Jaekyung SUNG 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 negative electrode active material, method of producing the same, and negative electrode and lithium secondary battery including the same
    Patent number: 11955625
    Abstract: Provided are a negative electrode active material including a three-dimensional composite. The three-dimensional composite includes secondary particles containing a silicon carbide-based (SiCx, 0<x?1) nanosheet having a bent portion and amorphous carbon. Also provided are a method of producing the same, and a negative electrode and a lithium secondary battery including the negative electrode active material.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: April 9, 2024
    Assignees: SK On Co., Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Eunjun Park, Joon-Sup Kim, Jaekyung Sung, Yoon Kwang Lee, Tae Yong Lee, Jae Phil Cho
  • Composite anode active material, method of preparing the composite anode material, and lithium secondary battery comprising the composite anode active material
    Patent number: 11682757
    Abstract: Provided is a composite anode active material including: a carbonaceous material; a metal alloyable with lithium, located on a surface of the carbonaceous material; and a silicon coating layer located on a surface of the carbonaceous material, on a surface of the metal alloyable with lithium, or a combination thereof.
    Type: Grant
    Filed: November 3, 2017
    Date of Patent: June 20, 2023
    Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Jaephil Cho, Jaekyung Sung, Seong Hyeon Choi, Jiyoung Ma, Yoonkwang Lee
  • Composite Negative Electrode Active Material, Method of Producing the Same, and Negative Electrode and Lithium Secondary Battery Including the Same
    Publication number: 20220059821
    Abstract: Provided are a negative electrode active material including a three-dimensional composite. The three-dimensional composite includes secondary particles containing a silicon carbide-based (SiCx, 0<x?1) nanosheet having a bent portion and amorphous carbon. Also provided are a method of producing the same, and a negative electrode and a lithium secondary battery including the negative electrode active material.
    Type: Application
    Filed: August 20, 2021
    Publication date: February 24, 2022
    Inventors: Eunjun Park, Joon-Sup Kim, Jaekyung Sung, Yoon Kwang Lee, Tae Yong Lee, Jae Phil Cho
  • A COMPOSITE ANODE ACTIVE MATERIAL, METHOD OF PREPARING THE COMPOSITE ANODE MATERIAL, AND LITHIUM SECONDARY BATTERY COMPRISING THE COMPOSITE ANODE ACTIVE MATERIAL
    Publication number: 20190296336
    Abstract: Provided is a composite anode active material including: a carbonaceous material; a metal alloyable with lithium, located on a surface of the carbonaceous material; and a silicon coating layer located on a surface of the carbonaceous material, on a surface of the metal alloyable with lithium, or a combination thereof.
    Type: Application
    Filed: November 3, 2017
    Publication date: September 26, 2019
    Applicant: UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
    Inventors: Jaephil Cho, Jaekyung Sung, Seong Hyeon Choi, Jiyoung MA, Yoonkwang Lee
  • Electron emitting device using graphene and method for manufacturing same
    Patent number: 9991081
    Abstract: Disclosed are an electron emitting device using graphene and a method for manufacturing the same. The electron emitting device includes a metal holder having at least one slot, at least one emitter plate inserted into the slot to protrude from a first surface of the metal holder, and including an emitter supporting member and a graphene emitter attached onto the emitter supporting member, an insulation layer provided on the first surface of the metal holder, and a gate electrode provided on the insulation layer and including a gate supporting member and a graphene gate attached onto the gate supporting member.
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: June 5, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shanghyeun Park, Donggu Lee, Ilhwan Kim, Jaekyung Sung, Changsoo Lee, Dongsu Kang, Euna Yu
  • ELECTRON EMITTING DEVICE USING GRAPHENE AND METHOD FOR MANUFACTURING SAME
    Publication number: 20170084417
    Abstract: Disclosed are an electron emitting device using graphene and a method for manufacturing the same. The electron emitting device includes a metal holder having at least one slot, at least one emitter plate inserted into the slot to protrude from a first surface of the metal holder, and including an emitter supporting member and a graphene emitter attached onto the emitter supporting member, an insulation layer provided on the first surface of the metal holder, and a gate electrode provided on the insulation layer and including a gate supporting member and a graphene gate attached onto the gate supporting member.
    Type: Application
    Filed: May 13, 2014
    Publication date: March 23, 2017
    Inventors: Shanghyeun PARK, Donggu LEE, Ilhwan KIM, Jaekyung SUNG, Changsoo LEE, Dongsu KANG, Euna YU