Patents by Inventor Ho Il JI
Ho Il JI 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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Publication number: 20240154143Abstract: In an embodiment of the present invention, a proton conductive oxide fuel cell comprising an electrode substrate, a proton conductive oxide electrolyte layer positioned on the electrode substrate, a proton conductive oxide reaction prevention layer positioned on the electrolyte layer, and a proton conductive oxide air electrode layer positioned on the reaction prevention layer, wherein the reaction prevention layer is composed of ABO3-? structured perovskite proton conductive oxide, may be provided.Type: ApplicationFiled: July 24, 2023Publication date: May 9, 2024Inventors: Sungeun YANG, Ho Il Ji, Yeji Lim, Jong Ho Lee, Wan-jae Lee, Junseok Kim, Ji-Won Son, Kyung Joong Yoon, Deok-Hwang Kown
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Patent number: 11855286Abstract: Disclosed are a cathode for an all-solid-state battery including a cathode thin film for an all-solid-state battery or a cathode composite membrane for an all-solid-state battery, and an all-solid-state battery including the same. The cathode for an all-solid-state battery contains a grain that has a plane having a low surface energy and has a grain boundary arranged parallel to the electron movement direction, thus effectively lowering the interfacial resistance of the thin film while suppressing the dissolution and diffusion of the transition metal, thereby improving the cycle stability of the all-solid-state battery including the same.Type: GrantFiled: November 27, 2020Date of Patent: December 26, 2023Assignee: Korea Institute of Science and TechnologyInventors: Sang Baek Park, Byung Kook Kim, Jong Ho Lee, Ji Won Son, Kyung Joong Yoon, Hyoung Chul Kim, Ho Il Ji, Sung Eun Yang, Seung Hwan Lee, Joo Sun Kim
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Patent number: 11631878Abstract: Disclosed is a method of manufacturing a solid oxide fuel cell including a multi-layered electrolyte layer using a calendering process. The method for manufacturing a solid oxide fuel cell is a continuous process, thus providing high productivity and maximizing facility investment and processing costs. In addition, the solid oxide fuel cell manufactured by the method includes an anode that is free of interfacial defects and has a uniform packing structure, thereby advantageously greatly improving the production yield and power density. In addition, the solid oxide fuel cell has excellent interfacial bonding strength between respective layers included therein, and includes a multi-layered electrolyte layer in which the secondary phase at the interface is suppressed and which has increased density, thereby advantageously providing excellent output characteristics and long-term stability even at an intermediate operating temperature.Type: GrantFiled: March 25, 2021Date of Patent: April 18, 2023Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ho Il Ji, Jong Ho Lee, Byung Kook Kim, Ji Won Son, Kyung Joong Yoon, Hyoung Chul Kim, Sang Baek Park, Sung Eun Yang, Jun Seok Kim
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Publication number: 20220393180Abstract: Disclosed is an anode-free all-solid-state battery having improved charge/discharge cycle stability. Specifically, the anode-free all-solid-state battery includes a cathode layer containing a cathode active material, an anode current collector layer, and a solid electrolyte layer interposed between the cathode layer and the anode current collector layer, wherein the anode current collector layer has a surface roughness (Rq) of 100 nm to 1,000 nm.Type: ApplicationFiled: March 1, 2022Publication date: December 8, 2022Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sang Baek PARK, Byung Kook KIM, Jong Ho LEE, Ji Won SON, Kyung Joong YOON, Hyoung Chul KIM, HO IL JI, Sung Eun YANG, Deok Hwang KWON, Hyung Mook KANG, Dong Hee GU
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Patent number: 11515544Abstract: Disclosed is a method of manufacturing a solid oxide fuel cell using a calendering process. The method includes preparing a stack including an anode support layer (ASL) and an anode functional layer (AFL), calendering the stack to obtain an anode, stacking an electrolyte layer on the anode to obtain an assembly, calendering the assembly to obtain an electrolyte substrate, sintering the electrolyte substrate, and forming a cathode on the electrolyte layer of the electrolyte substrate.Type: GrantFiled: March 11, 2020Date of Patent: November 29, 2022Assignee: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hae-Weon Lee, Ho Il Ji, Byung Kook Kim, Jong Ho Lee, Ji-Won Son, Kyung Joong Yoon, Hyoungchul Kim, Sungeun Yang, Sangbaek Park, Junseok Kim, Jisu Shin
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Publication number: 20220166056Abstract: Provided are a lithium-argyrodite ionic superconductor containing a halogen element and a method for preparing the same, wherein an argyrodite-type crystal structure can be maintained and lithium ion conductivity can be greatly improved by combining specific elements at a specific molar ratio.Type: ApplicationFiled: March 11, 2021Publication date: May 26, 2022Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Hyoung Chul KIM, Byung Kook KIM, Jong Ho LEE, Ji Won SON, Kyung Joong YOON, HO IL JI, Sung Eun YANG, Sang Baek PARK, Hun Gi JUNG, Sung Soo SHIN, Ji Su KIM, Eu Deum JUNG
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Publication number: 20220158209Abstract: Disclosed is a method of manufacturing a solid oxide fuel cell including a multi-layered electrolyte layer using a calendering process. The method for manufacturing a solid oxide fuel cell is a continuous process, thus providing high productivity and maximizing facility investment and processing costs. In addition, the solid oxide fuel cell manufactured by the method includes an anode that is free of interfacial defects and has a uniform packing structure, thereby advantageously greatly improving the production yield and power density. In addition, the solid oxide fuel cell has excellent interfacial bonding strength between respective layers included therein, and includes a multi-layered electrolyte layer in which the secondary phase at the interface is suppressed and which has increased density, thereby advantageously providing excellent output characteristics and long-term stability even at an intermediate operating temperature.Type: ApplicationFiled: March 25, 2021Publication date: May 19, 2022Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: HO IL JI, Jong Ho LEE, Byung Kook KIM, Ji Won SON, Kyung Joong YOON, Hyoung Chul KIM, Sang Baek PARK, Sung Eun YANG, Jun Seok KIM
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Publication number: 20220131142Abstract: Disclosed are a cathode for an all-solid-state battery including a cathode thin film for an all-solid-state battery or a cathode composite membrane for an all-solid-state battery, and an all-solid-state battery including the same. The cathode for an all-solid-state battery contains a grain that has a plane having a low surface energy and has a grain boundary arranged parallel to the electron movement direction, thus effectively lowering the interfacial resistance of the thin film while suppressing the dissolution and diffusion of the transition metal, thereby improving the cycle stability of the all-solid-state battery including the same.Type: ApplicationFiled: November 27, 2020Publication date: April 28, 2022Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Sang Baek PARK, Byung Kook KIM, Jong Ho LEE, Ji Won SON, Kyung Joong YOON, Hyoung Chul KIM, HO IL JI, Sung Eun YANG, Seung Hwan LEE, Joo Sun KIM
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Publication number: 20210151773Abstract: Disclosed is a method of manufacturing a solid oxide fuel cell using a calendering process. The method includes preparing a stack including an anode support layer (ASL) and an anode functional layer (AFL), calendering the stack to obtain an anode, stacking an electrolyte layer on the anode to obtain an assembly, calendering the assembly to obtain an electrolyte substrate, sintering the electrolyte substrate, and forming a cathode on the electrolyte layer of the electrolyte substrate.Type: ApplicationFiled: March 11, 2020Publication date: May 20, 2021Inventors: Hae-Weon LEE, Ho Il JI, Byung Kook KIM, Jong Ho LEE, Ji-Won SON, Kyung Joong YOON, Hyoungchul KIM, Sungeun YANG, Sangbaek PARK, Junseok KIM, JISU SHIN
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Publication number: 20210119247Abstract: Provided are a sulfide-based lithium-argyrodite ion superconductor containing multiple chalcogen elements and a method for preparing the same. More specifically, provided are a sulfide-based lithium-argyrodite ion superconductor containing multiple chalcogen elements and a method for preparing the same that are capable of significantly improving lithium ion conductivity by substituting a sulfur (S) element in a PS43- tetrahedron with a chalcogen element such as a selenium (Se) element, other than the sulfur (S) element, while maintaining an argyrodite-type crystal structure of a sulfide-based solid electrolyte represented by Li6PS5Cl.Type: ApplicationFiled: March 2, 2020Publication date: April 22, 2021Inventors: Hyoungchul KIM, Byung Kook KIM, Hae-Weon LEE, Jong Ho LEE, Ji-Won SON, Kyung Joong YOON, Ho Il JI, Sangbaek PARK, Sungeun YANG, Ji-Su KIM, Sung Soo SHIN, Eu Deum JUNG
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Patent number: 10923733Abstract: The present disclosure relates to a nanocatalyst for an anode of a solid oxide fuel cell and a method for preparing the same. More particularly, the present disclosure relates to a nanocatalyst for an anode of a solid oxide fuel cell obtained by forming a ceramic nanocatalyst including a noble metal dispersed therein in an atomic unit and contained in an ionic state having an oxidation number other than 0 through an in situ infiltration process in the internal pores of a porous electrode, and to application of the nanocatalyst to a solid oxide fuel cell having significantly higher electrochemical characteristics as compared to the solid oxide fuel cells including the conventional nickel-based anode and oxide anode, and particularly showing excellent characteristics at an intermediate or low temperature of 600° C. or less.Type: GrantFiled: January 24, 2019Date of Patent: February 16, 2021Assignees: Korea Institute of Science and Technology, Industry-University Cooperation Foundation Hanyang UniversityInventors: Kyung Joong Yoon, Yun Jung Lee, Ji-su Shin, Mansoo Park, Ho Il Ji, Hyoungchul Kim, Ji-Won Son, Jong Ho Lee, Byung Kook Kim, Hae-Weon Lee
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Publication number: 20190296366Abstract: The present disclosure relates to a nanocatalyst for an anode of a solid oxide fuel cell and a method for preparing the same. More particularly, the present disclosure relates to a nanocatalyst for an anode of a solid oxide fuel cell obtained by forming a ceramic nanocatalyst including a noble metal dispersed therein in an atomic unit and contained in an ionic state having an oxidation number other than 0 through an in situ infiltration process in the internal pores of a porous electrode, and to application of the nanocatalyst to a solid oxide fuel cell having significantly higher electrochemical characteristics as compared to the solid oxide fuel cells including the conventional nickel-based anode and oxide anode, and particularly showing excellent characteristics at an intermediate or low temperature of 600° C. or less.Type: ApplicationFiled: January 24, 2019Publication date: September 26, 2019Applicants: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY, INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITYInventors: Kyung Joong YOON, Yun Jung LEE, Ji-su SHIN, Mansoo PARK, HO IL JI, Hyoungchul KIM, Ji-Won SON, Jong Ho LEE, Byung Kook KIM, Hae-Weon LEE
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Publication number: 20180331381Abstract: The present invention relates to a method for manufacturing a protonic ceramic fuel cell, more particularly to a method for manufacturing a protonic ceramic fuel cell, which includes an electrolyte layer with a dense structure and has very superior interfacial bonding between the electrolyte layer and a cathode layer.Type: ApplicationFiled: May 9, 2018Publication date: November 15, 2018Inventors: Jong Ho LEE, Hyeg Soon AN, Sung Min CHOI, Kyung Joong YOON, Ji-Won SON, Byung Kook KIM, Hae-Weon LEE, Mansoo PARK, Hyoungchul KIM, Ho-Il JI
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Publication number: 20120251917Abstract: Disclosed are a solid oxide fuel cell including: a) an anode support; b) a solid electrolyte layer formed on the anode support; and c) a nanostructure composite cathode layer formed on the solid electrolyte layer, wherein the nanostructure composite cathode layer includes an electrode material and an electrolyte material mixed in molecular scale, which do not react with each other or dissolve each other to form a single material, and a method for fabricating the same. The fuel cell is operable at low temperature and has high performance and superior stability.Type: ApplicationFiled: January 27, 2012Publication date: October 4, 2012Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Ji-Won SON, Doo Hwan MYUNG, Jaeyeon HWANG, Hae-Weon LEE, Byung Kook KIM, Jong Ho LEE, Hae-Ryoung KIM, Ho Il JI