Patents by Inventor Joonmok SHIM
Joonmok SHIM 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: 10263269Abstract: The present invention relates to a cell for felt electrode characterization which analyzes a characteristic of a felt electrode used in a redox flow battery. According to the present invention, the cell for felt electrode characterization can accurately analyze an electrical characteristic of the felt electrode by adjusting contact strength applied to the working electrode to be constant by adjusting the thickness of the first support that supports one side of the working electrode.Type: GrantFiled: July 22, 2016Date of Patent: April 16, 2019Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Junghoon Yang, Kyunam Jung, Jaedeok Jeon, Chanwoo Lee, Joonmok Shim
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Patent number: 10014544Abstract: The present invention relates to a redox flow battery, and is to provide a redox flow battery having high battery potential and high energy efficiency and providing a stable charge-discharge performance. The present invention provides a redox flow battery including: a stack arranged to separate a negative electrode unit and a positive electrode unit with respect to a separator; pumps configured to supply electrolytes including polythiophene to the stack; and tanks storing the polythiophene.Type: GrantFiled: October 15, 2015Date of Patent: July 3, 2018Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Junghoon Yang, Jaedeok Jeon, Joonmok Shim, Kyounghee Shin, Changsoo Jin, Bumsuk Lee, Myungseok Jeon, Kyunam Jung, Sunhwa Yeon
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Patent number: 9738523Abstract: Disclosed is a method of preparing a carbide-derived carbon having high ion mobility for use in a lithium battery anode material, a lithium air battery electrode, a supercapacitor electrode, and a flow capacitor electrode, including thermally treating a carbide compound in a vacuum, thus obtaining a vacuum-treated carbide compound; and thermochemically reacting the vacuum-treated carbide compound with a halogen element-containing gas, thus extracting the element other than carbon from the vacuum-treated carbide compound, wherein annealing can be further performed after thermochemical reaction. This carbide-derived carbon has a small pore distribution, dense graphite fringe, and a large lattice spacing and thus high ion mobility, compared to conventional carbide-derived carbon obtained only by thermochemical reaction with a halogen element-containing gas.Type: GrantFiled: November 12, 2014Date of Patent: August 22, 2017Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Sun-Hwa Yeon, Kyoung-Hee Shin, Chang-Soo Jin, Kyu-Nam Jung, Sukeun Yoon, Jae-Deok Jeon, Joonmok Shim, Jung-Hoon Yang, Bum-Suk Lee, Myung Seok Jeon, Wook Ahn
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Patent number: 9653746Abstract: A manifold for a redox flow battery capable of effectively suppressing a shunt current has a supply flow pathway and an exhaust flow pathway respectively formed at a left side and a right side of an anode or cathode electrode electrolyte reaction unit so as to include a U-shaped curved portion, and the U-shaped curved portion is formed to be positioned on the upper part of the top or the lower part of the bottom of the first electrode electrolyte reaction unit. When the manifold is applied to a redox flow battery, the supply flow pathway and the exhaust flow pathway having the U-shaped curved portion are formed on the upper part of the top or the lower part of the bottom of the electrode electrolyte reaction unit to prevent an electrolyte existing in the inside of a stack and a pipe from passing through the U-shaped curved portion.Type: GrantFiled: January 25, 2013Date of Patent: May 16, 2017Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Chang-Soo Jin, Jae-Deok Jeon, Bum-Suk Lee, Joonmok Shim, Kyoung-Hee Shin, Sea-Couk Park, Myung Seok Jeon, Kyu-Nam Jung, Sun-Hwa Yeon, Sukeun Yoon
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Patent number: 9634329Abstract: Disclosed herein is a method of preparing porous graphene from porous graphite, including 1) thermochemically reacting a highly crystalline carbide compound with a halogen element-containing gas to give a porous carbide-derived carbon; 2) treating the carbide-derived carbon with an acid, thus preparing a carbide-derived carbon oxide; and 3) reducing the carbide-derived carbon oxide. An anode mixture for a secondary battery including the graphene and an anode for a secondary battery including the anode mixture are also provided.Type: GrantFiled: November 12, 2014Date of Patent: April 25, 2017Assignee: Korea Institute of Energy ResearchInventors: Sun-Hwa Yeon, Kyoung-Hee Shin, Chang-Soo Jin, Kyu-Nam Jung, Jae-Deok Jeon, Joonmok Shim, Jung-Hoon Yang, Bum-Suk Lee, Myung Seok Jeon, Wook Ahn
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Publication number: 20170059520Abstract: The present invention relates to a cell for felt electrode characterization which analyzes a characteristic of a felt electrode used in a redox flow battery. According to the present invention, the cell for felt electrode characterization can accurately analyze an electrical characteristic of the felt electrode by adjusting contact strength applied to the working electrode to be constant by adjusting the thickness of the first support that supports one side of the working electrode.Type: ApplicationFiled: July 22, 2016Publication date: March 2, 2017Inventors: Junghoon YANG, Kyunam JUNG, Jaedeok JEON, Chanwoo LEE, Joonmok SHIM
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Publication number: 20160141697Abstract: The present invention relates to a redox flow battery, and is to provide a redox flow battery having high battery potential and high energy efficiency and providing a stable charge-discharge performance. The present invention provides a redox flow battery including: a stack arranged to separate a negative electrode unit and a positive electrode unit with respect to a separator; pumps configured to supply electrolytes including polythiophene to the stack; and tanks storing the polythiophene.Type: ApplicationFiled: October 15, 2015Publication date: May 19, 2016Inventors: Junghoon YANG, Jaedeok JEON, Joonmok SHIM, Kyounghee SHIN, Changsoo JIN, Bumsuk LEE, Myungseok JEON, Kyunam JUNG, Sunhwa YEON
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Publication number: 20160130146Abstract: Disclosed is a method of preparing a carbide-derived carbon having high ion mobility for use in a lithium battery anode material, a lithium air battery electrode, a supercapacitor electrode, and a flow capacitor electrode, including thermally treating a carbide compound in a vacuum, thus obtaining a vacuum-treated carbide compound; and thermochemically reacting the vacuum-treated carbide compound with a halogen element-containing gas, thus extracting the element other than carbon from the vacuum-treated carbide compound, wherein annealing can be further performed after thermochemical reaction. This carbide-derived carbon has a small pore distribution, dense graphite fringe, and a large lattice spacing and thus high ion mobility, compared to conventional carbide-derived carbon obtained only by thermochemical reaction with a halogen element-containing gas.Type: ApplicationFiled: November 12, 2014Publication date: May 12, 2016Inventors: Sun-Hwa Yeon, Kyoung-Hee Shin, Chang-Soo Jin, Kyu-Nam Jung, Sukeun Yoon, Jae-Deok Jeon, Joonmok Shim, Jung-Hoon Yang, Bum-Suk Lee, Myung Seok Jeon, Wook Ahn
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Patent number: 9266739Abstract: Disclosed is a method for preparing a carbide-derived carbon-based anode active material. The method includes preparing carbide-derived carbon, and expanding pores of the carbide-derived carbon. Here, expanding of pores is performed as an activation process of heating the prepared carbide-derived carbon in the air. The pores formed inside the carbide-derived carbon can be expanded during the activation process in the preparation of the carbide-derived carbon-based anode active material. In addition, by applying the carbide-derived carbon to an anode active material, lithium secondary battery having improved charge-discharge efficiency can be prepared.Type: GrantFiled: October 30, 2013Date of Patent: February 23, 2016Assignee: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Sun-Hwa Yeon, Kyoung-Hee Shin, Chang-Soo Jin, Kyu-Nam Jung, Sukeun Yoon, Jae-Deok Jeon, Joonmok Shim, Jung-Hoon Yang, Bum-Suk Lee, Myung Seok Jeon
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Publication number: 20150221959Abstract: A laminated structure of a redox flow cell, an integrated complex electrode cell, and a redox flow cell comprising same, wherein the integrated complex cell can reduce stack lamination process time and lamination cost and increase lamination efficiency by integrating a manifold and a bipolar plate in order to facilitate lamination. The integrated complex electrode cell having an inner seal structure, which inhibits the overflow of electrolytes, is characterized in that it inhibits the overflow of electrolytes of positive and negative poles by forming a structure in which an integrated part of the manifold and the bipolar plate can be sealed.Type: ApplicationFiled: January 30, 2013Publication date: August 6, 2015Inventors: Chang-Soo Jin, Jae-Deok Jeon, Bum-Suk Lee, Joonmok Shim, Kyoung-Hee Shin, Sea-Couk Park, Myung Seok Jeon, Kyu-Nam Jung, Sun-Hwa Yeon, Sukeun Yoon
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Publication number: 20150180074Abstract: A manifold for a redox flow battery capable of effectively suppressing a shunt current has a supply flow pathway and an exhaust flow pathway respectively formed at a left side and a right side of an anode or cathode electrode electrolyte reaction unit so as to include a U-shaped curved portion, and the U-shaped curved portion is formed to be positioned on the upper part of the top or the lower part of the bottom of the first electrode electrolyte reaction unit. When the manifold is applied to a redox flow battery, the supply flow pathway and the exhaust flow pathway having the U-shaped curved portion are formed on the upper part of the top or the lower part of the bottom of the electrode electrolyte reaction unit to prevent an electrolyte existing in the inside of a stack and a pipe from passing through the U-shaped curved portion.Type: ApplicationFiled: January 25, 2013Publication date: June 25, 2015Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Chang-Soo Jin, Jae-Deok Jeon, Bum-Suk Lee, Joonmok Shim, Kyoung-Hee Shin, Sea-Couk Park, Myung Seok Jeon, Kyu-Nam Jung, Sun-Hwa Yeon, Sukeun Yoon
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Publication number: 20150132654Abstract: Disclosed herein is a method of preparing porous graphene from porous graphite, including 1) thermochemically reacting a highly crystalline carbide compound with a halogen element-containing gas to give a porous carbide-derived carbon; 2) treating the carbide-derived carbon with an acid, thus preparing a carbide-derived carbon oxide; and 3) reducing the carbide-derived carbon oxide. An anode mixture for a secondary battery including the graphene and an anode for a secondary battery including the anode mixture are also provided.Type: ApplicationFiled: November 12, 2014Publication date: May 14, 2015Inventors: Sun-Hwa Yeon, Kyoung-Hee Shin, Chang-Soo Jin, Kyu-Nam Jung, Jae-Deok Jeon, Joonmok Shim, Jung-Hoon Yang, Bum-Suk Lee, Myung Seok Jeon, Wook Ahn
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Publication number: 20140134494Abstract: Disclosed is a method for preparing a carbide-derived carbon-based anode active material. The method includes preparing carbide-derived carbon, and expanding pores of the carbide-derived carbon. Here, expanding of pores is performed as an activation process of heating the prepared carbide-derived carbon in the air. The pores formed inside the carbide-derived carbon can be expanded during the activation process in the preparation of the carbide-derived carbon-based anode active material. In addition, by applying the carbide-derived carbon to an anode active material, lithium secondary battery having improved charge-discharge efficiency can be prepared.Type: ApplicationFiled: October 30, 2013Publication date: May 15, 2014Applicant: KOREA INSTITUTE OF ENERGY RESEARCHInventors: Sun-Hwa YEON, Kyoung-Hee SHIN, Chang-Soo JIN, Kyu-Nam JUNG, Sukeun YOON, Jae-Deok JEON, Joonmok SHIM, Jung-Hoon YANG, Bum-Suk LEE, Myung Seok JEON