Patents by Inventor Jung Hoon Yang

Jung Hoon Yang 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).

  • Patent number: 9865877
    Abstract: According to an embodiment of the present disclosure, a multi-acid anionic material-carbon fiber composite comprises carbon nanofibers and multi-acid anionic crystals stuck in the carbon nanofibers. Some of the multi-acid anionic crystals are exposed to an outside of the carbon nanofibers.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: January 9, 2018
    Inventors: Yong-Mook Kang, Jung-Hoon Yang
  • Publication number: 20170271684
    Abstract: The present invention relates to a cathode for a metal-air battery, a method for manufacturing the same, and a metal-air battery including the same. The cathode comprises a needle-shaped core including two or more species of metals selected from the group consisting of nickel, cobalt, manganese, zinc, iron, copper, and chrome, or a cobalt oxide; and a flake-shaped shell including an oxide containing two or more species of metals selected from the group consisting of nickel, cobalt, manganese, zinc, iron, copper, and chrome or a cobalt oxide. As such, the core-shell structure may lead to a reduction in the charge voltage of the metal-air battery as well as the taking of the good capacity characteristics of the transition metal oxide. Further, according to the present invention, the cathode for a metal-air battery may be produced without adding carbon or binder.
    Type: Application
    Filed: December 5, 2014
    Publication date: September 21, 2017
    Inventors: Kyu-nam JUNG, Jong-won LEE, Kyung-hee SHIN, Chang-soo JIN, Bum-suk LEE, Myung-seok JEON, Jae-deok JEON, Sun-hwa YEON, Joon-mok SHIM, Jung-hoon YANG
  • Patent number: 9738523
    Abstract: 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: Grant
    Filed: November 12, 2014
    Date of Patent: August 22, 2017
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: 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
  • Patent number: 9640789
    Abstract: A connecting element for a secondary battery according to the present disclosure includes a metal plate having a recess groove, a soldering pattern having a lower melting point than the metal plate and formed within the recess groove, and an insulation layer formed on at least one surface among both surfaces of the metal plate, and covering an area where the soldering pattern is formed. According to the present disclosure, it is possible to interrupt an overcurrent quickly when the overcurrent occurs, and prevent secondary damage caused by a spark that may occur when the connecting element for the secondary battery is ruptured.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: May 2, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Jung-Hoon Yang, Jong-Hun Kim, Young-Suk Cho, Jeong-Gyu Park, Hyun-Gyu Han
  • Patent number: 9634329
    Abstract: 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: Grant
    Filed: November 12, 2014
    Date of Patent: April 25, 2017
    Assignee: Korea Institute of Energy Research
    Inventors: 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
  • Patent number: 9577240
    Abstract: Disclosed is a battery module capable of ensuring safety in use by breaking a bus bar when an overcurrent flows at the battery module. The battery module includes at least one unit cell, a case for accommodating the unit cell, and a bus bar electrically connected to the unit cell, wherein the bus bar includes a first metal plate, a second metal plate spaced apart from the first metal plate, and a metal bridge configured to connect the first metal plate and the second metal plate and having a lower melting point than the metal plate.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 21, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jun-Seok Choi, Jin-Kyu Lee, Tae-Hwan Roh, Seung-Don Choi, Seong-Tae Kim, Tae-Hyuck Kim, Jung-Hoon Yang, Min-Chul Jang, In-Cheol Shin, Dal-Mo Kang
  • Patent number: 9508969
    Abstract: A secondary battery includes an electrode assembly having an electrode tab; an electrode lead attached to the electrode tab and having at least one lead hole; a pouch case for accommodating the electrode assembly so that the electrode lead is drawn out; and a sealing tape interposed between the electrode lead and the inner surface of the pouch case and having a venting pattern portion formed at a region corresponding to the lead hole. Therefore, when gas is generated inside a pouch case of a secondary battery due to an abnormal circumstance, for example when an overcurrent flows at the secondary battery since a protective circuit does not operate normally, a sealed state of the pouch case is rapidly released, thereby ensuring the safety of the secondary battery in use.
    Type: Grant
    Filed: August 30, 2013
    Date of Patent: November 29, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Jung-Hoon Yang, Young-Suk Cho, Seung-Don Choi, Ok-Gyun Kang
  • Publication number: 20160308236
    Abstract: Disclosed is a flow-type energy storage device having an improved flow of fluid. The flow-type energy storage device stores electricity using a fluidic material, and includes a reaction region in which charge-discharge reaction of electricity is performed by the fluidic material, wherein the reaction region has an octagonal cross-section. The shape of the reaction region is controlled to thus improve the flowability of the fluidic material, thereby providing a flow-type energy storage device that has almost constant electrical properties even when a charging and discharging cycle is repeatedly performed. Further, the structures of an inlet and an outlet are not complicated and a separate part for controlling the flow of fluid is not used in the device, and accordingly, additional costs are not incurred during a process of manufacturing the flow-type energy storage device.
    Type: Application
    Filed: April 15, 2016
    Publication date: October 20, 2016
    Applicant: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Sun-Hwa YEON, Kyoung-Hee SHIN, Jae-Deok JEON, Jung Joon YOO, Hana YOON, Chang-Soo JIN, Joon-Mok SHIM, Jung-Hoon YANG, Kyu-Nam JUNG, Dong-Ha KIM, Se-Kook PARK
  • Patent number: 9444088
    Abstract: An overcurrent shut-off device according to an exemplary embodiment of the present disclosure includes a switching unit connected to both ends of a secondary battery, the switching unit being turned on by pressure caused by a swelling phenomenon occurring in the secondary battery, and a fusing unit, as a component installed on a path of an electric current flowing through the secondary battery, being ruptured when the switching unit is turned on, to interrupt the electric current flowing through the secondary battery. According to an aspect of the present disclosure, by a turn-on operation in response to a swelling phenomenon of a secondary battery caused by a short circuit and the like, a connecting component installed on a path of an electric current flowing through a secondary battery is ruptured quickly to interrupt an overcurrent, thereby ensuring safety of the secondary battery in use.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: September 13, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Jung-Hoon Yang, Young-Suk Cho, Jong-Hun Kim
  • Publication number: 20160204445
    Abstract: The present invention relates to a cathode catalyst for a metal-air battery, a method for manufacturing the same, and a metal-air battery comprising the same. More specifically, the present invention relates to a cathode catalyst for a metal-air battery, a method for manufacturing the same, and a metal-air battery comprising the same having an improved storage capacity for charging/discharging and an increased charge-discharge cycle lifetime. The cathode catalyst is characterized by having a layered perovskite structure, and including lanthanum and nickel oxides. The cathode catalyst including the layered perovskite is used for manufacturing a cathode for a metal-air battery, and a metal-air battery is provided using the same. As a result, the charge-discharge polarisation of the metal-air battery is decreased, the storage capacity is increased, and the charge-discharge cycle lifetime can be improved.
    Type: Application
    Filed: August 29, 2014
    Publication date: July 14, 2016
    Inventors: Kyu-nam JUNG, Jong-won LEE, Kyung-hee SHIN, Chang-soo JIN, Bum-suk LEE, Myung-seok JEON, Jae-deok JEON, Sun-hwa YEON, Joon-mok SHIM, Jung-hoon YANG, Jong-hyuk JUNG
  • Publication number: 20160156019
    Abstract: According to an embodiment of the present disclosure, a multi-acid anionic material-carbon fiber composite comprises carbon nanofibers and multi-acid anionic crystals stuck in the carbon nanofibers. Some of the multi-acid anionic crystals are exposed to an outside of the carbon nanofibers.
    Type: Application
    Filed: June 9, 2015
    Publication date: June 2, 2016
    Inventors: YONG-MOOK KANG, JUNG-HOON YANG
  • Publication number: 20160130146
    Abstract: 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: Application
    Filed: November 12, 2014
    Publication date: May 12, 2016
    Inventors: 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
  • Publication number: 20160126526
    Abstract: The present invention describes a component for a secondary battery and a manufacturing method thereof, and a secondary battery manufactured by using the component. The component for a secondary battery according to the present invention comprises a lead-free soldering bridge having a melting point of 150 to 300° C. and containing tin (Sn) and copper (Cu) as a main ingredient; the first and second metal plates spaced therebetween through a gap and coupling with the lead-free soldering bridge. According to the present invention, when an over-current flows through the component for a secondary battery, the temperature of the lead-free soldering bridge is locally increased rapidly to melt the lead-free soldering bridge, thereby efficiently interrupting the flow of an over-current.
    Type: Application
    Filed: January 8, 2016
    Publication date: May 5, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Jung-Hoon YANG, Seung-Don CHOI, Ji-Hoon JEON, Young-Suk CHO
  • Patent number: 9269960
    Abstract: An electrode lead is applied as a part of at least one of a cathode lead and an anode lead of a secondary battery and includes a first metal plate and a second metal plate spaced apart from each other with a gap therebetween and having coating layers formed on the surfaces thereof except for surfaces of end portions thereof facing each others, and a metal bridge made of material having a lower melting point than the first metal plate and the second metal plate and buried in the gap so that the end portions are not exposed. In this case, if an overcurrent flows through the electrode lead, a portion of the metal plate at which a metal bridge is formed is rapidly broken to irreversibly interrupt the overcurrent flowing at the secondary battery without giving a substantial influence on the temperature of the secondary battery.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: February 23, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Jung-Hoon Yang, Seung-Don Choi
  • Patent number: 9266739
    Abstract: 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: Grant
    Filed: October 30, 2013
    Date of Patent: February 23, 2016
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: 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
  • Publication number: 20160028068
    Abstract: A secondary battery according to the present disclosure includes an electrode assembly, a first lead plate connected to the electrode assembly, a second lead plate disposed facing the first lead plate with a gap therebetween such that at least a portion of the second lead plate overlaps with at least a portion of the first lead plate, a metal bridge disposed within the gap to connect the first lead plate and the second lead plate, a first sealant disposed within the gap further outside than the metal bridge, a pouch case to receive the electrode assembly such that the second lead plate is drawn outside, and a second sealant interposed respectively between an inner surface of the pouch case and the first lead plate and between the inner surface of the pouch case and the second lead plate.
    Type: Application
    Filed: September 24, 2014
    Publication date: January 28, 2016
    Applicant: LG Chem, Ltd.
    Inventors: Jung-Hoon Yang, Young-Suk Cho, Jong-Hun Kim
  • Patent number: 9136526
    Abstract: Disclosed is to a method of manufacturing an anode active material, including mixing a first solution having a metal oxide precursor dissolved therein, a second solution having a polymer as a carbon fiber precursor dissolved therein, and an ionic liquid solution for nitrogen doping and formation of a porous structure, thus preparing an electrospinning solution, electrospinning the electrospinning solution, thus preparing a metal oxide-nitrogen-porous carbon nanofiber composite, and thermally treating the composite, and to an anode and a lithium battery using the anode active material.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: September 15, 2015
    Assignee: KOREA INSTITUTE OF ENERGY RESEARCH
    Inventors: Sukeun Yoon, Kyung-Hee Shin, Chang soo Jin, Kyu-Nam Jung, Bum-suk Lee, Myung-seok Jeon, Sun-Hwa Yeon, Jae-Deok Joen, Jun-Mook Shim, Jung-Hoon Yang, Myung-Hyun Ryu
  • Patent number: 9118072
    Abstract: The present invention describes a component for a secondary battery and a manufacturing method thereof, and a secondary battery manufactured by using the component. The component for a secondary battery according to the present invention comprises a metal plate in which at least one recess line is formed; and a soldering pattern joined in the recess line. According to the present invention, when an over-current flows through the component for a secondary battery, breakage occurs at the portion where soldering pattern is joined in the recess line, thereby efficiently interrupting the flow of an over-current.
    Type: Grant
    Filed: April 30, 2013
    Date of Patent: August 25, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Jung-Hoon Yang, Seung-Don Choi
  • Publication number: 20150132654
    Abstract: 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: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Inventors: 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
  • Publication number: 20150044528
    Abstract: An overcurrent shut-off device according to an exemplary embodiment of the present disclosure includes a switching unit connected to both ends of a secondary battery, the switching unit being turned on by pressure caused by a swelling phenomenon occurring in the secondary battery, and a fusing unit, as a component installed on a path of an electric current flowing through the secondary battery, being ruptured when the switching unit is turned on, to interrupt the electric current flowing through the secondary battery. According to an aspect of the present disclosure, by a turn-on operation in response to a swelling phenomenon of a secondary battery caused by a short circuit and the like, a connecting component installed on a path of an electric current flowing through a secondary battery is ruptured quickly to interrupt an overcurrent, thereby ensuring safety of the secondary battery in use.
    Type: Application
    Filed: October 23, 2014
    Publication date: February 12, 2015
    Applicant: LG Chem, Ltd.
    Inventors: Jung-Hoon Yang, Young-Suk Cho, Jong-Hun Kim