Patents by Inventor Dock Young Yoon

Dock Young Yoon 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).

  • Lithium secondary battery and method of preparing anode for lithium secondary battery
    Patent number: 12062793
    Abstract: A lithium secondary battery according to exemplary embodiments includes a cathode, a separation layer, and an anode facing the cathode with the separation layer interposed therebetween. The anode includes an anode current collector, and an anode active material layer formed on the anode current collector. The anode active material layer includes an anode active material and a conductive additive. The conductive additive includes an expandable graphite having a particle diameter of 10 ?m or less.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: August 13, 2024
    Assignee: SK On Co., Ltd.
    Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
  • Lithium secondary battery
    Patent number: 11916225
    Abstract: A lithium secondary battery includes a cathode, an anode and a separation layer. The cathode includes a cathode current collector and a cathode active material base layer formed on the cathode current collector. The anode includes an anode current collector and an anode active material base layer formed on the anode current collector. The separation layer is interposed between the cathode and the anode. At least one of the cathode and the anode includes an active material coating layer having a thickness of 20 ?m or less.
    Type: Grant
    Filed: April 8, 2020
    Date of Patent: February 27, 2024
    Assignee: SK ON CO., LTD.
    Inventor: Dock Young Yoon
  • POUCH TYPE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20230207975
    Abstract: The present invention provide a pouch type secondary battery and a method for manufacturing the same. More particularly, the present invention provides a pouch type secondary battery and a method for manufacturing the same, in which a pouch case is formed in a folding manner without being subjected to a forming process (press process), such that there is no limit in a length, and a thickness of an inner space of the pouch case is not limited.
    Type: Application
    Filed: January 16, 2023
    Publication date: June 29, 2023
    Inventors: Jong Hyuk LEE, Hee Gyoung KANG, Dock Young YOON
  • Pouch type secondary battery and method for manufacturing the same
    Patent number: 11581602
    Abstract: The present invention provide a pouch type secondary battery and a method for manufacturing the same. More particularly, the present invention provides a pouch type secondary battery and a method for manufacturing the same, in which a pouch case is formed in a folding manner without being subjected to a forming process (press process), such that there is no limit in a length, and a thickness of an inner space of the pouch case is not limited.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: February 14, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Jong Hyuk Lee, Hee Gyoung Kang, Dock Young Yoon
  • Lithium secondary battery
    Patent number: 11563206
    Abstract: Provided is a lithium secondary battery. The lithium secondary battery includes a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a mixed negative electrode active material including graphite particles and low crystalline carbon-based particles, and the negative electrode active material layer has an apex of an exothermic peak in a temperature range of no less than 370° C. and no more than 390° C., as measured by differential scanning calorimetry (DSC).
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: January 24, 2023
    Assignee: SK ON CO., LTD.
    Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
  • LITHIUM SECONDARY BATTERY
    Publication number: 20220216458
    Abstract: Provided is a lithium secondary battery. The lithium secondary battery includes a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a mixed negative electrode active material including graphite particles and low crystalline carbon-based particles, and the negative electrode active material layer has an apex of an exothermic peak in a temperature range of no less than 370° C. and no more than 390° C., as measured by differential scanning calorimetry (DSC).
    Type: Application
    Filed: March 24, 2022
    Publication date: July 7, 2022
    Inventors: Jong Hyuk LEE, Dock Young YOON, Hee Gyoung KANG
  • Lithium secondary battery
    Patent number: 11322735
    Abstract: Provided is a lithium secondary battery. The lithium secondary battery includes a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a mixed negative electrode active material including graphite particles and low crystalline carbon-based particles, and the negative electrode active material layer has an apex of an exothermic peak in a temperature range of no less than 370° C. and no more than 390° C., as measured by differential scanning calorimetry (DSC).
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: May 3, 2022
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
  • LITHIUM SECONDARY BATTERY
    Publication number: 20210384546
    Abstract: A lithium secondary battery according to an embodiment of the present disclosure includes a cathode, an anode and a non-aqueous electrolyte. The anode includes an anode active material which contains a mixture of an artificial graphite and a natural graphite. A sphericity of the natural graphite is 0.96 or more. The lithium secondary battery including the anode has improved life-span and power properties.
    Type: Application
    Filed: August 25, 2021
    Publication date: December 9, 2021
    Inventors: Dock Young YOON, Jee Hee LEE, Sang Jin KIM
  • Lithium secondary battery
    Patent number: 11145888
    Abstract: A lithium secondary battery includes a cathode, an anode and a non-aqueous electrolyte. The anode includes an anode active material which contains a mixture of an artificial graphite and a natural graphite. A sphericity of the natural graphite is 0.96 or more. The lithium secondary battery including the anode has improved life-span and power properties.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 12, 2021
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Dock Young Yoon, Jee Hee Lee, Sang Jin Kim
  • Lithium Secondary Battery and Method of Preparing Anode for Lithium Secondary Battery
    Publication number: 20210083293
    Abstract: A lithium secondary battery according to exemplary embodiments includes a cathode, a separation layer, and an anode facing the cathode with the separation layer interposed therebetween. The anode includes an anode current collector, and an anode active material layer formed on the anode current collector. The anode active material layer includes an anode active material and a conductive additive. The conductive additive includes an expandable graphite having a particle diameter of 10 ?m or less.
    Type: Application
    Filed: September 15, 2020
    Publication date: March 18, 2021
    Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
  • LITHIUM SECONDARY BATTERY
    Publication number: 20200328410
    Abstract: A lithium secondary battery includes a cathode, an anode and a separation layer. The cathode includes a cathode current collector and a cathode active material base layer formed on the cathode current collector. The anode includes an anode current collector and an anode active material base layer formed on the anode current collector. The separation layer is interposed between the cathode and the anode. At least one of the cathode and the anode includes an active material coating layer having a thickness of 20 ?m or less.
    Type: Application
    Filed: April 8, 2020
    Publication date: October 15, 2020
    Inventor: Dock Young YOON
  • Lithium secondary battery with natural graphite anode
    Patent number: 10770747
    Abstract: A lithium secondary battery includes a cathode, an anode and a non-aqueous electrolyte. The anode includes an anode active material which includes a natural graphite, an average particle diameter (D50) of the natural graphite being in a range from 9 ?m to 14 ?m, and an expansion rate of the anode represented is 17% or less.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: September 8, 2020
    Assignee: SK INNOVATION CO., LTD.
    Inventors: Jee Hee Lee, Dock Young Yoon, Sang Jin Kim
  • LITHIUM SECONDARY BATTERY
    Publication number: 20200266422
    Abstract: Provided is a lithium secondary battery. The lithium secondary battery includes a negative electrode including a negative electrode active material layer, wherein the negative electrode active material layer includes a mixed negative electrode active material including graphite particles and low crystalline carbon-based particles, and the negative electrode active material layer has an apex of an exothermic peak in a temperature range of no less than 370° C. and no more than 390° C., as measured by differential scanning calorimetry (DSC).
    Type: Application
    Filed: February 14, 2020
    Publication date: August 20, 2020
    Inventors: Jong Hyuk LEE, Dock Young YOON, Hee Gyoung KANG
  • Lithium air battery
    Patent number: 10573946
    Abstract: Provided is a lithium air battery, particularly, a lithium air battery capable of being easily charged and discharged to thereby improve performance and reliability, having economic feasibility, preventing leakage of ions, and having firmly inter-coupled electrodes to thereby improve durability.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: February 25, 2020
    Assignee: SK Innovation Co., Ltd.
    Inventors: Myoung Gu Park, Kyong Sik Kim, Hee Young Sun, Dock Young Yoon, Sang Jin Kim
  • POUCH TYPE SECONDARY BATTERY AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20190372064
    Abstract: The present invention provide a pouch type secondary battery and a method for manufacturing the same. More particularly, the present invention provides a pouch type secondary battery and a method for manufacturing the same, in which a pouch case is formed in a folding manner without being subjected to a forming process (press process), such that there is no limit in a length, and a thickness of an inner space of the pouch case is not limited.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 5, 2019
    Inventors: Jong Hyuk LEE, Hee Gyoung KANG, Dock Young YOON
  • LITHIUM SECONDARY BATTERY
    Publication number: 20180342755
    Abstract: A lithium secondary battery includes a cathode, an anode and a non-aqueous electrolyte. The anode includes an anode active material which contains a mixture of an artificial graphite and a natural graphite. A sphericity of the natural graphite is 0.96 or more. The lithium secondary battery including the anode has improved life-span and power properties.
    Type: Application
    Filed: May 29, 2018
    Publication date: November 29, 2018
    Inventors: Dock Young YOON, Jee Hee LEE, Sang Jin KIM
  • LITHIUM SECONDARY BATTERY
    Publication number: 20170373315
    Abstract: A lithium secondary battery includes a cathode, an anode and a non-aqueous electrolyte. The anode includes an anode active material which includes a natural graphite, an average particle diameter (D50) of the natural graphite being in a range from 9 ?m to 14 ?m, and an expansion rate of the anode represented is 17% or less.
    Type: Application
    Filed: June 16, 2017
    Publication date: December 28, 2017
    Inventors: Jee Hee LEE, Dock Young YOON, Sang Jin KIM
  • Lithium air battery system
    Patent number: 9559370
    Abstract: Provided is a lithium air battery system, and more particularly, a lithium air battery system capable of stably and continuously operating a lithium air battery by recovering an electrolytic solution evaporated in the lithium air battery and injecting the recovered electrolytic solution into the lithium air battery.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: January 31, 2017
    Assignee: SK Innovation Co., Ltd.
    Inventors: Myoung Gu Park, Kyong Sik Kim, Hee Young Sun, Dock Young Yoon, Sang Jin Kim
  • Lithium Air Battery
    Publication number: 20150188206
    Abstract: Provided is a lithium air battery, particularly, a lithium air battery capable of being easily charged and discharged to thereby improve performance and reliability, having economic feasibility, preventing leakage of ions, and having firmly inter-coupled electrodes to thereby improve durability.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 2, 2015
    Inventors: Myoung Gu Park, Kyong Sik Kim, Hee Young Sun, Dock Young Yoon, Sang Jin Kim
  • Lithium Air Battery System
    Publication number: 20150030940
    Abstract: Provided is a lithium air battery system, and more particularly, a lithium air battery system capable of stably and continuously operating a lithium air battery by recovering an electrolytic solution evaporated in the lithium air battery and injecting the recovered electrolytic solution into the lithium air battery.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 29, 2015
    Applicant: SK Innovation Co., Ltd.
    Inventors: Myoung Gu Park, Kyong Sik Kim, Hee Young Sun, Dock Young Yoon, Sang Jin Kim