Patents by Inventor Woo Suk Cho
Woo Suk Cho 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: 11993392Abstract: An auxiliary propulsion apparatus of an air vehicle may include an engine mounted in a fuselage of the air vehicle, a generator configured to be driven using power from the engine, a compressor configured to be driven by the engine or the generator, a battery configured to store electricity generated by the generator, an electricity distributor connected to the generator, the battery and the main propulsion apparatus and configured to distribute electricity generated by the generator to the battery and to a main propulsion apparatus, and at least one nozzle device configured to jet high-pressure gas, supplied from the compressor, to an outside of the fuselage.Type: GrantFiled: July 21, 2021Date of Patent: May 28, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Woo Suk Jung, Gwi Taek Kim, Yoon Cheol Jeon, Hyun Ki Cho
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Publication number: 20230387407Abstract: A positive electrode active material, an all-solid-state battery comprising same, and a method for manufacturing same are proposed. The positive electrode active material may include a lithium metal oxide in the form of single particles having a particle strength of 300 MPa to 1500 MPa and an average particle diameter of at most 10 ?m. Since the positive electrode active material is in the form of single particles having a high particle strength of at least 300 MPa and a small average particle diameter of at most 10 ?m as indicated above, cracks may not form or may be delayed even when pressure is applied during the manufacture of the positive electrode or structural stress is applied over the lifespan of the battery.Type: ApplicationFiled: August 3, 2023Publication date: November 30, 2023Inventors: Woo Suk CHO, Kyung Su KIM, Ji Sang YU, Jun Ho SONG, Keon Ho PARK
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Publication number: 20230187692Abstract: A solid electrolyte having satisfactory moisture stability and ion conductivity through activation energy improvement and a solid-state battery including the same are proposed. The solid electrolyte may include an oxysulfide-based compound represented by the following chemical formula: [Chemical formula] LiaMbPcSdOeXf, wherein 5?a?7, 0<b?1, 0?c<1, 2.5?d?5, 0<e?2, 1<f?1.5, M is at least one selected from the group consisting of Si, Ti, Ta, Nb, As, Sb, Sn and Al, and X is at least one selected from the group consisting of Cl, Br, I and F.Type: ApplicationFiled: February 2, 2023Publication date: June 15, 2023Inventors: Woo Suk CHO, Kyung Su KIM, Ji Sang YU, Goo Jin JEONG, Keon Ho PARK
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Publication number: 20220393176Abstract: A method of manufacturing an all-solid-state battery electrode, an all-solid-state battery electrode manufactured by the method, and an all-solid-state battery including the electrode are disclosed. In the method, a specific type of binder included in the electrode is prepared in a fiber form by applying pressure to the binder under specific conditions, so that the fiber-form binder thus prepared has an average fineness that satisfies a specific range. Therefore, the all-solid-state battery including the electrode has an advantage of having high capacity even in the case of electrode thickening for high loading.Type: ApplicationFiled: December 7, 2021Publication date: December 8, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Jae Min Lim, Yong Gu Kim, Hong Seok Min, Sang Heon Lee, Sa Heum Kim, Yun Sung Kim, Ji Sang Yu, Kyung Su Kim, Goo Jin Jeong, Woo Suk Cho
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Publication number: 20220320483Abstract: Disclosed is an anode for an all-solid-state battery containing no active material. The anode for an all-solid-state battery includes an anode current collector, and a composite layer disposed on the anode current collector and including a carbon material and a metal capable of being alloyed with lithium. The carbon material includes a plurality of primary particles that do not agglomerate with one another.Type: ApplicationFiled: December 9, 2021Publication date: October 6, 2022Inventors: Yong Gu Kim, Hong Seok Min, Sang Heon Lee, Jae Min Lim, Sa Heum Kim, Yun Sung Kim, Woo Suk Cho, Ji Sang Yu, Goo Jin Jeong, Kyung Su Kim
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Patent number: 10177379Abstract: A positive electrode material for a secondary battery and a method for manufacturing the same are provided, in which manganese fluorophosphate containing lithium or sodium can be used as an electrode material. That is, a positive electrode material for a lithium/sodium battery is provided, in which intercalation/deintercalation of sodium/lithium ions is possible due to a short lithium diffusion distance caused by nanosizing of particles. Furthermore, a positive electrode material for a lithium/sodium battery is provided, which has electrochemical activity due to an increase in electrical conductivity by effective carbon coating.Type: GrantFiled: January 11, 2016Date of Patent: January 8, 2019Assignee: Hyundai Motor CompanyInventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim
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Publication number: 20170334724Abstract: Disclosed are compositions and methods for producing a cathode for a secondary battery, where lithium manganese fluorophosphate such as Li2MnPO4F can be used as an electrode material. Li2MnPO4F is prepared by chemical intercalation of lithium, and can be used as an electrode material, and a non-lithium containing material can then be used as an anode material for manufacturing of a full cell Furthermore, it is possible to provide a carbon coating for a cathode material for a lithium battery, which has improved electrical conductivity.Type: ApplicationFiled: August 4, 2017Publication date: November 23, 2017Inventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim, Dong Jin Kim
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Patent number: 9725321Abstract: Disclosed are compositions and methods for producing a cathode for a secondary battery, where lithium manganese fluorophosphate such as Li2MnPO4F can be used as an electrode material. Li2MnPO4F is prepared by chemical intercalation of lithium, and can be used as an electrode material, and a non-lithium containing material can then be used as an anode material for manufacturing of a full cell. Furthermore, it is possible to provide a carbon coating for a cathode material for a lithium battery, which has improved electrical conductivity.Type: GrantFiled: December 7, 2011Date of Patent: August 8, 2017Assignees: Hyundai Motor Company, Korea Electronics Technology InstituteInventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim, Dong Jin Kim
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Patent number: 9543571Abstract: Disclosed are a precursor for a rechargeable lithium battery, a positive active material including the same, a preparation method thereof, and a rechargeable lithium battery including the positive active material. More particularly, the present invention relates to a precursor including a sheet-shaped plate having a thickness of about 1 nm to about 30 nm and that is represented by the following Chemical Formula 1. NixCoyMn1-x-y-zMz(OH)2??[Chemical Formula 1] In the above Chemical Formula 1, 0<x<1, 0?y<1, 0.5?1-x-y-z, and 0?z<1, and M is at least one kind of metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr.Type: GrantFiled: September 18, 2012Date of Patent: January 10, 2017Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Jun Ho Song, Young Jun Kim, Jeom-Soo Kim, Woo Suk Cho, Jae-Hun Kim, Jun Sung Lee, Jin Hwa Kim, Kyoung Joon Lee
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Patent number: 9385371Abstract: A positive electrode material for a secondary battery and a method for manufacturing the same are provided, in which manganese fluorophosphate containing lithium or sodium can be used as an electrode material. That is, a positive electrode material for a lithium/sodium battery is provided, in which intercalation/deintercalation of sodium/lithium ions is possible due to a short lithium diffusion distance caused by nanosizing of particles. Furthermore, a positive electrode material for a lithium/sodium battery is provided, which has electrochemical activity due to an increase in electrical conductivity by effective carbon coating.Type: GrantFiled: August 22, 2011Date of Patent: July 5, 2016Assignees: Hyundai Motor Company, Korea Electronics Technology InstituteInventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim
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Publication number: 20160156036Abstract: A positive electrode material for a secondary battery and a method for manufacturing the same are provided, in which manganese fluorophosphate containing lithium or sodium can be used as an electrode material. That is, a positive electrode material for a lithium/sodium battery is provided, in which intercalation/deintercalation of sodium/lithium ions is possible due to a short lithium diffusion distance caused by nanosizing of particles. Furthermore, a positive electrode material for a lithium/sodium battery is provided, which has electrochemical activity due to an increase in electrical conductivity by effective carbon coating.Type: ApplicationFiled: January 11, 2016Publication date: June 2, 2016Inventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim
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Publication number: 20150349339Abstract: The present invention relates to a cathode active material for a lithium secondary battery and a preparation method thereof, and particularly, to a cathode active material for a lithium secondary battery having improved battery characteristics because of manganese phosphate uniformly coated on the surface of a Ni-rich cathode active material, and a preparation method thereof. According to the present invention, because manganese phosphate is uniformly coated on the surface of the Ni-rich cathode active material, a side reaction of the electrolyte is inhibited and a lithium secondary battery having excellent power characteristics, high temperature cycle life characteristics, and thermal stability can be prepared.Type: ApplicationFiled: February 15, 2013Publication date: December 3, 2015Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Woo Suk CHO, Jun-Ho SONG, Jeom-Soo KIM, Tae-Eun YIM, Young-Jun KIM, Sang-Min KIM, Hyunsang CHO
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Patent number: 9130213Abstract: Disclosed are compositions and methods for producing a cathode for a secondary battery, where a fluorophosphate of the formula LixNa2-xMnPO4F is used as an electrode material. LixNa2-xMnPO4F is prepared by partially substituting a sodium site with lithium through a chemical method. LixNa2-xMnPO4F prepared according to the invention provides a cathode material for a lithium battery that has improved electrochemical activity.Type: GrantFiled: December 7, 2011Date of Patent: September 8, 2015Assignees: Hyundai Motor Company, Korea Electronics Technology InstituteInventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim, Sang Min Kim
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Patent number: 8906254Abstract: Disclosed are a cathode material for a secondary battery, and a manufacturing method of the same. The cathode material includes a lithium manganese phosphate LiMnPO4/sodium manganese fluorophosphate Na2MnPO4F composite, in which the LiMnPO4 and Na2MnPO4F have different crystal structures. Additionally, the method of manufacturing the cathode material may be done in a single step through a hydrothermal synthesis, which greatly reduces the time and cost of production. Additionally, the disclosure provides that the electric conductivity of the cathode material may be improved through carbon coating, thereby providing a cathode material with excellent electrochemical activity.Type: GrantFiled: May 31, 2012Date of Patent: December 9, 2014Assignees: Hyundai Motor Company, Korea Electronics Technology InstituteInventors: Sa Heum Kim, Dong Gun Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim, Dong Jin Kim
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Publication number: 20140356712Abstract: Disclosed are a precursor for a rechargeable lithium battery, a positive active material including the same, a preparation method thereof, and a rechargeable lithium battery including the positive active material. More particularly, the present invention relates to a precursor including a sheet-shaped plate having a thickness of about 1 nm to about 30 nm and that is represented by the following Chemical Formula 1. NixCOyMn1-x-y-zMz(OH)2??[Chemical Formula 1] In the above Chemical Formula 1, 0<x<1, 0?y<1, 0.5?1?x?y?z, and 0?z<1, and M is at least one kind of metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr.Type: ApplicationFiled: September 18, 2012Publication date: December 4, 2014Inventors: Jun Ho Song, Young Jun Kim, Jeom-Soo Kim, Woo Suk Cho, Jae-Hun Kim, Jun Sung Lee, Jin Hwa Kim, Kyoung Joon Lee
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Publication number: 20140242463Abstract: The present invention provides a positive active material for a secondary lithium battery, a method of preparing the positive active material, and a secondary lithium battery including the positive active material, wherein the positive active material includes a lithium metal composite oxide core represented by the following Chemical Formula 1, and a coating layer including a fluorine compound and positioned at a shell of the lithium metal composite oxide core. LiwNixCoyMn1-x-y-zMzO2??[Chemical Formula 1] (1.2?w?1.5, 0<x<1, 0?y<1, 0.5?1-x-y-z, and M is at least one metal selected from the group consisting of Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, and Zr).Type: ApplicationFiled: September 18, 2012Publication date: August 28, 2014Applicant: KOREA ELECTRONICS TECHNOLOGY INSTITUTEInventors: Jun Ho Song, Young Jun Kim, Jeom-Soo Kim, Woo Suk Cho, Jae-Hun Kim, Jin Hwa Kim
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Publication number: 20130134362Abstract: Disclosed are a cathode material for a secondary battery, and a manufacturing method of the same. The cathode material includes a lithium manganese phosphate LiMnPO4/sodium manganese fluorophosphate Na2MnPO4F composite, in which the LiMnPO4 and Na2MnPO4F have different crystal structures. Additionally, the method of manufacturing the cathode material may be done in a single step through a hydrothermal synthesis, which greatly reduces the time and cost of production. Additionally, the disclosure provides that the electric conductivity of the cathode material may be improved through carbon coating, thereby providing a cathode material with excellent electrochemical activity.Type: ApplicationFiled: May 31, 2012Publication date: May 30, 2013Applicants: KOREA ELECTRONICS TECHNOLOGY INSTITUTE, HYUNDAI MOTOR COMPANYInventors: Sa Heum KIM, Dong Gun KIM, Young Jun KIM, Jun Ho SONG, Woo Suk CHO, Jeom Soo KIM, Dong Jin KIM
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Publication number: 20130078521Abstract: Disclosed are compositions and methods for producing a cathode for a secondary battery, where a fluorophosphate of the formula LixNa2-xMnPO4F is used as an electrode material. LixNa2-xMnPO4F is prepared by partially substituting a sodium site with lithium through a chemical method. LixNa2-xMnPO4F prepared according to the invention provides a cathode material for a lithium battery that has improved electrochemical activity.Type: ApplicationFiled: December 7, 2011Publication date: March 28, 2013Applicants: KOREA ELECTRONICS TECHNOLOGY INSTITUTE, HYUNDAI MOTOR COMPANYInventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim, Sang Min Kim
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Publication number: 20130069012Abstract: Disclosed are compositions and methods for producing a cathode for a secondary battery, where lithium manganese fluorophosphate such as Li2MnPO4F can be used as an electrode material. Li2MnPO4F is prepared by chemical intercalation of lithium, and can be used as an electrode material, and a non-lithium containing material can then be used as an anode material for manufacturing of a full cell. Furthermore, it is possible to provide a carbon coating for a cathode material for a lithium battery, which has improved electrical conductivity.Type: ApplicationFiled: December 7, 2011Publication date: March 21, 2013Applicants: KOREA ELECTRONICS TECHNOLOGY INSTITUTE, HYUNDAI MOTOR COMPANYInventors: Dong Gun KIM, Sa Heum KIM, Young Jun KIM, Jun Ho SONG, Woo Suk CHO, Jeom Soo KIM, Dong Jin KIM
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Publication number: 20120305855Abstract: A positive electrode material for a secondary battery and a method for manufacturing the same are provided, in which manganese fluorophosphate containing lithium or sodium can be used as an electrode material. That is, a positive electrode material for a lithium/sodium battery is provided, in which intercalation/deintercalation of sodium/lithium ions is possible due to a short lithium diffusion distance caused by nanosizing of particles. Furthermore, a positive electrode material for a lithium/sodium battery is provided, which has electrochemical activity due to an increase in electrical conductivity by effective carbon coating.Type: ApplicationFiled: August 22, 2011Publication date: December 6, 2012Applicants: KOREA ELECTRONICS TECHNOLOGY INSTITUTE, HYUNDAI MOTOR COMPANYInventors: Dong Gun Kim, Sa Heum Kim, Young Jun Kim, Jun Ho Song, Woo Suk Cho, Jeom Soo Kim