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).
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Patent number: 11916225Abstract: 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: GrantFiled: April 8, 2020Date of Patent: February 27, 2024Assignee: SK ON CO., LTD.Inventor: Dock Young Yoon
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Publication number: 20230207975Abstract: 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: ApplicationFiled: January 16, 2023Publication date: June 29, 2023Inventors: Jong Hyuk LEE, Hee Gyoung KANG, Dock Young YOON
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Patent number: 11581602Abstract: 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: GrantFiled: June 3, 2019Date of Patent: February 14, 2023Assignee: SK ON CO., LTD.Inventors: Jong Hyuk Lee, Hee Gyoung Kang, Dock Young Yoon
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Patent number: 11563206Abstract: 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: GrantFiled: March 24, 2022Date of Patent: January 24, 2023Assignee: SK ON CO., LTD.Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
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Publication number: 20220216458Abstract: 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: ApplicationFiled: March 24, 2022Publication date: July 7, 2022Inventors: Jong Hyuk LEE, Dock Young YOON, Hee Gyoung KANG
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Patent number: 11322735Abstract: 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: GrantFiled: February 14, 2020Date of Patent: May 3, 2022Assignee: SK INNOVATION CO., LTD.Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
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Publication number: 20210384546Abstract: 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: ApplicationFiled: August 25, 2021Publication date: December 9, 2021Inventors: Dock Young YOON, Jee Hee LEE, Sang Jin KIM
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Patent number: 11145888Abstract: 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: GrantFiled: May 29, 2018Date of Patent: October 12, 2021Assignee: SK INNOVATION CO., LTD.Inventors: Dock Young Yoon, Jee Hee Lee, Sang Jin Kim
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Publication number: 20210083293Abstract: 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: ApplicationFiled: September 15, 2020Publication date: March 18, 2021Inventors: Jong Hyuk Lee, Dock Young Yoon, Hee Gyoung Kang
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Publication number: 20200328410Abstract: 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: ApplicationFiled: April 8, 2020Publication date: October 15, 2020Inventor: Dock Young YOON
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Patent number: 10770747Abstract: 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: GrantFiled: June 16, 2017Date of Patent: September 8, 2020Assignee: SK INNOVATION CO., LTD.Inventors: Jee Hee Lee, Dock Young Yoon, Sang Jin Kim
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Publication number: 20200266422Abstract: 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: ApplicationFiled: February 14, 2020Publication date: August 20, 2020Inventors: Jong Hyuk LEE, Dock Young YOON, Hee Gyoung KANG
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Patent number: 10573946Abstract: 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: GrantFiled: December 28, 2012Date of Patent: February 25, 2020Assignee: SK Innovation Co., Ltd.Inventors: Myoung Gu Park, Kyong Sik Kim, Hee Young Sun, Dock Young Yoon, Sang Jin Kim
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Publication number: 20190372064Abstract: 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: ApplicationFiled: June 3, 2019Publication date: December 5, 2019Inventors: Jong Hyuk LEE, Hee Gyoung KANG, Dock Young YOON
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Publication number: 20180342755Abstract: 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: ApplicationFiled: May 29, 2018Publication date: November 29, 2018Inventors: Dock Young YOON, Jee Hee LEE, Sang Jin KIM
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Publication number: 20170373315Abstract: 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: ApplicationFiled: June 16, 2017Publication date: December 28, 2017Inventors: Jee Hee LEE, Dock Young YOON, Sang Jin KIM
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Patent number: 9559370Abstract: 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: GrantFiled: December 18, 2012Date of Patent: January 31, 2017Assignee: SK Innovation Co., Ltd.Inventors: Myoung Gu Park, Kyong Sik Kim, Hee Young Sun, Dock Young Yoon, Sang Jin Kim
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Publication number: 20150188206Abstract: 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: ApplicationFiled: December 28, 2012Publication date: July 2, 2015Inventors: Myoung Gu Park, Kyong Sik Kim, Hee Young Sun, Dock Young Yoon, Sang Jin Kim
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Publication number: 20150030940Abstract: 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: ApplicationFiled: December 18, 2012Publication date: January 29, 2015Applicant: SK Innovation Co., Ltd.Inventors: Myoung Gu Park, Kyong Sik Kim, Hee Young Sun, Dock Young Yoon, Sang Jin Kim
