Patents by Inventor Hye-Ran JUNG

Hye-Ran JUNG 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: 12249720
    Abstract: An electrode assembly of the present invention comprises a cathode active material layer, a cathode current collector, a separator, an anode current collector, and an anode active material layer, which are stacked in order, wherein the current collectors have a plurality of through-holes formed to allow communication between the upper surface and the lower surface of the current collector. The electrode assembly of the present invention has the effect of preventing a rapid temperature increase if an internal short caused by damage to the separator occurs.
    Type: Grant
    Filed: May 3, 2021
    Date of Patent: March 11, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventor: Hye Ran Jung
  • Patent number: 12227684
    Abstract: A method of preparing a core-shell structured quantum dot particle includes the steps of (a) preparing a core of quantum dot particle containing indium (In) and phosphorus (P) and (b) forming a shell by reacting the core of the quantum dot particles prepared in step (a), a zinc oxo cluster represented by Formula 1 below, and at least one anion precursor containing a group 16 element.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: February 18, 2025
    Assignees: SHIN-A T&C, UNIAM
    Inventors: Seung Mo Hong, Jin Han Song, Hyeok Jin Hong, Seok Kyu Park, Hye Ran Jung, Ju Young Lee, Jae Woo Jang
  • Publication number: 20220285694
    Abstract: An electrode assembly of the present invention comprises a cathode active material layer, a cathode current collector, a separator, an anode current collector, and an anode active material layer, which are stacked in order, wherein the current collectors have a plurality of through-holes formed to allow communication between the upper surface and the lower surface of the current collector. The electrode assembly of the present invention has the effect of preventing a rapid temperature increase if an internal short caused by damage to the separator occurs.
    Type: Application
    Filed: May 3, 2021
    Publication date: September 8, 2022
    Applicant: LG Energy Solution, Ltd.
    Inventor: Hye Ran Jung
  • Publication number: 20220228058
    Abstract: A method of preparing a core-shell structured quantum dot particle includes the steps of (a) preparing a core of quantum dot particle containing indium (In) and phosphorus (P) and (b) forming a shell by reacting the core of the quantum dot particles prepared in step (a), a zinc oxo cluster represented by Formula 1 below, and at least one anion precursor containing a group 16 element.
    Type: Application
    Filed: January 14, 2022
    Publication date: July 21, 2022
    Inventors: Seung Mo HONG, Jin Han SONG, Hyeok Jin HONG, Seok Kyu PARK, Hye Ran JUNG, Ju Young LEE, Jae Woo JANG
  • Patent number: 11362401
    Abstract: The present invention relates to a separator for a lithium secondary battery, which includes a porous substrate, and a lithium metal layer formed on one side of the porous substrate, wherein the lithium metal layer is formed on an outer circumferential surface of the porous substrate and has a window frame shape with an empty interior, and a lithium secondary battery including the same.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: June 14, 2022
    Inventors: Hye Ran Jung, Young Geun Choi, Song Taek Oh
  • Patent number: 11081736
    Abstract: The present disclosure provides a test cell for measuring electrode characteristics including an electrode assembly having a first reference electrode, a second reference electrode, and a first electrode, which is a target of characteristic measurement, wherein the electrode assembly is housed and sealed in a pouch type battery case made of a laminate sheet with an electrolyte solution.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: August 3, 2021
    Inventors: Hye Ran Jung, Young Geun Choi, Song Taek Oh
  • Publication number: 20200321584
    Abstract: The present invention relates to a separator for a lithium secondary battery, which includes a porous substrate, and a lithium metal layer formed on one side of the porous substrate, wherein the lithium metal layer is formed on an outer circumferential surface of the porous substrate and has a window frame shape with an empty interior, and a lithium secondary battery including the same.
    Type: Application
    Filed: March 8, 2018
    Publication date: October 8, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Hye Ran Jung, Young Geun Choi, Song Taek Oh
  • Patent number: 10644346
    Abstract: The present invention relates to an electrode for an electrochemical device and a method for manufacturing the same. More specifically, the present invention relates to an electrode for an electrochemical device having excellent electrolyte impregnation and improved battery output and lifecycle properties, and a method for manufacturing the electrode. The electrode according to the present invention enables an electrolyte to easily permeate into the electrode, thereby remarkably improving a lifecycle property or an output property due to high electrolyte impregnation. In addition, the method for manufacturing an electrode, according to the present invention, does not cause the deterioration of porosity of a lower electrode active material monolayer, the deterioration being caused by a step performed during the formation of an upper electrode active material monolayer.
    Type: Grant
    Filed: April 27, 2016
    Date of Patent: May 5, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Hye-Ran Jung, Hyeok-Moo Lee, Hyo-Sik Kim, Song-Taek Oh
  • Patent number: 10305148
    Abstract: The present invention relates to a cable-type secondary battery which can be freely transformed, and more specifically, to a cable-type secondary battery having improved flexibility of the battery by preventing wrinkling, which may occur on a thin metal layer included in packaging. According to the present invention, the flexibility of an electrode can be drastically improved by introducing a support layer on at least one surface of a sheet-type external electrode, and the flexibility of the battery can be improved by forming the support layer, which is the outermost layer of the external electrode, and a polymer resin layer inside the packaging from the same material, and by preventing winkling on the thin metal layer included in the packaging by mutually coupling the support layer and the polymer resin layer.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: May 28, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Eun-Suk Park, Je-Young Kim, Se-Woo Yang, Seung-Hyun Chung, Hye-Ran Jung
  • Patent number: 10276864
    Abstract: The anode active material of the present invention comprises silicon-based particles obtained from at least one of silicon, a silicon oxide and a silicon alloy, and the silicon-based particles have a faceted shape, thereby providing high capacity and good life characteristics without causing any deterioration which has been generated in the use of conventional silicon-based particles, and eventually providing a lithium secondary battery having such characteristics.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: April 30, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yong-Ju Lee, Yoon-Ah Kang, Je-Young Kim, Seung-Youn Choi, Mi-Rim Lee, Hye-Ran Jung, Jung-Woo Yoo
  • Publication number: 20190089021
    Abstract: The present disclosure provides a test cell for measuring electrode characteristics including an electrode assembly having a first reference electrode, a second reference electrode, and a first electrode, which is a target of characteristic measurement, wherein the electrode assembly is housed and sealed in a pouch type battery case made of a laminate sheet with an electrolyte solution.
    Type: Application
    Filed: August 23, 2017
    Publication date: March 21, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Hye Ran JUNG, Young Geun CHOI, Song Taek OH
  • Patent number: 10211432
    Abstract: The present invention relates to a hollow packaging for a cable-type secondary battery and a cable-type secondary battery comprising same, and more specifically, to a hollow packaging for a cable-type secondary battery and a cable-type secondary battery comprising same, wherein the hollow packaging for a cable-type secondary battery comprises a packaging sheet including a sheet-type thin metal layer provided with a corrugated pattern on the surface, a first polymer resin layer formed on one surface of the thin metal layer, and a mechanical support layer formed on the other surface of the thin metal layer, wherein the packaging sheet forms a hollow space by bending so that the first polymer resin layer faces inward.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: February 19, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Je-Young Kim, Seok-Koo Kim
  • Patent number: 10199640
    Abstract: Alloy particles for negative electrode active material are proposed, which can impart anti-oxidation property to Si-containing alloy particles, and suppress oxidation of the negative electrode active material due to electrolyte at a considerably high level. A negative electrode material of secondary battery is achieved by a negative electrode material of secondary battery which is capable of intercalating and de-intercalating lithium and which consists of alloy particles including a silicon phase, a metal phase and bismuth, in which a crystallite size of the silicon phase is 10 nm or smaller, and the metal phase includes at least one kind of metal alloying with silicon but not with lithium, and the negative electrode material includes primary particles formed at least by the silicon and the metals.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: February 5, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Keiko Matsubara, Yoshiyuki Igarashi, Mi-Rim Lee, Hye-Ran Jung, Yong-Ju Lee
  • Patent number: 10050311
    Abstract: The present invention provides an electrode for a secondary battery, more specifically an electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on at least one surface or the whole outer surface of the current collector; a conductive material-coating layer formed on the top surface of the electrode active material layer and comprising a conductive material and a first polymer binder; and a porous coating layer formed on the top surface of the conductive material-coating layer and comprising a second polymer binder. Also, the present invention provides a secondary battery and a cable-type secondary battery comprising the electrode.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: August 14, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Jang-Hyuk Hong, Hye-Ran Jung, Je-Young Kim, Jong-Hun Kim
  • Patent number: 9991509
    Abstract: Provided are an anode active material including a porous silicon oxide-carbon material composite which includes a porous silicon oxide including pores and a line-type carbon material coated on a surface, in the pores, or on the surface and in the pores of the porous silicon oxide, and a method of preparing the anode active material. Since the silicon oxide of the anode active material according to an embodiment of the present invention may include the plurality of pores, resistance to the mechanical stress due to a volume change may be improved. Also, since the line-type carbon material is bonded to the inside of the pores, conductivity may not be decreased even in the case in which internal cracks occur in the porous silicon oxide and lifetime characteristics may be improved.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: June 5, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Jung Woo Yoo, Je Young Kim, Yong Ju Lee, Seung Youn Choi, Yoon Ah Kang, Mi Rim Lee, Hye Ran Jung
  • Patent number: 9972861
    Abstract: The present disclosure provides a sheet-form electrode for a secondary battery, comprising a current collector; an electrode active material layer formed on one surface of the current collector; and a first porous supporting layer formed on the electrode active material layer. The sheet-form electrode for a secondary battery according to the present disclosure has supporting layers on at least one surface thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 15, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Yo-Han Kwon, Hye-Ran Jung, Eun-Kyung Kim, Je-Young Kim, Hyo-Mi Kim
  • Publication number: 20180097255
    Abstract: The present invention relates to an electrode for an electrochemical device and a method for manufacturing the same. More specifically, the present invention relates to an electrode for an electrochemical device having excellent electrolyte impregnation and improved battery output and lifecycle properties, and a method for manufacturing the electrode. The electrode according to the present invention enables an electrolyte to easily permeate into the electrode, thereby remarkably improving a lifecycle property or an output property due to high electrolyte impregnation. In addition, the method for manufacturing an electrode, according to the present invention, does not cause the deterioration of porosity of a lower electrode active material monolayer, the deterioration being caused by a step performed during the formation of an upper electrode active material monolayer.
    Type: Application
    Filed: April 27, 2016
    Publication date: April 5, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Hye-Ran Jung, Hyeok-Moo Lee, Hyo-Sik Kim, Song-Taek Oh
  • Patent number: 9831500
    Abstract: Provided are an electrode active material having a plurality of pores and a secondary battery including the same, and more particularly, a porous electrode active material including silicon-based oxide expressed by SiOx (0.5?x?1.2) and having a Brunauer, Emmett, and Teller (BET) specific surface area ranging from 2 m2/g to 100 m2/g, and a secondary battery including a cathode including a cathode active material, a separator, an anode including an anode active material, and an electrolyte, in which the anode active material includes a porous electrode active material including silicon-based oxide expressed by SiOx (0.5?x?1.2) and having a BET specific surface area ranging from 2 m2/g to 100 m2/g.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: November 28, 2017
    Assignees: LG Chem, Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Yong Ju Lee, Soo Jin Park, Dong Sub Jung, Hye Ran Jung, Jung In Lee, Je Young Kim, Jae Phil Cho
  • Patent number: 9780357
    Abstract: Disclosed herein is a silicon-based anode active material, comprising a silicon phase, a SiOx (0<x<2) phase and a carbon dioxide phase. Also disclosed is a secondary battery, which comprises a cathode comprising a cathode active material, an anode active material comprising an anode active material, and a separator, wherein the anode active material comprises a silicon phase, an SiOx (0<x<2) phase and a silicon dioxide phase.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: October 3, 2017
    Assignees: LG Chem, Ltd., UNIST (Ulsan National Institute of Science and Technology)
    Inventors: Yong Ju Lee, Soo Jin Park, Hye Ran Jung, Jung In Lee, Je Young Kim, Mi Rim Lee, Jae Phil Cho
  • Publication number: 20170263927
    Abstract: Disclosed is an electrode including an electrode comprising: an electrode current collector; and two or more electrode active material layers stacked on at least one surface of the electrode current collector, each of the electrode active material layers comprising an electrode active material, a conductor, and a binder, wherein the binder is uniformly distributed along a thickness direction of each of the electrode active material layer.
    Type: Application
    Filed: February 16, 2016
    Publication date: September 14, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Hyo-Sik KIM, Hye-Ran JUNG, Song-Taek OH, Hyeok-Moo LEE