Patents by Inventor Yun-Kyoung Kim

Yun-Kyoung Kim 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).

  • Publication number: 20210098775
    Abstract: Disclosed is a carbon-based fiber sheet and a lithium-sulfur battery including the same. The carbon-based fiber sheet for the lithium-sulfur battery is doped with a high concentration of nitrogen and thus plays a role of preventing diffusion by adsorbing lithium polysulfide eluted from a positive electrode during charging and discharging, thereby suppressing a shuttle reaction and thus improving capacity and lifecycle properties of the lithium-sulfur battery.
    Type: Application
    Filed: December 8, 2020
    Publication date: April 1, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Yun Kyoung KIM, Taek Gyoung KIM, Kwonnam SOHN, Doo Kyung YANG, Mira IM
  • Publication number: 20200350570
    Abstract: A cathode for lithium secondary batteries including a gel polymer electrolyte coating layer formed on a cathode active material layer of a lithium secondary battery, and more particularly, a cathode having a novel structure capable of solving problems caused due to lithium polysulfides, the problems being caused in conventional lithium secondary batteries, and a lithium secondary battery including the same and method for preparing the same.
    Type: Application
    Filed: October 23, 2018
    Publication date: November 5, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Yun Kyoung KIM, Dongwook KOH, Doo Kyung YANG
  • Publication number: 20200328394
    Abstract: A separator capable of simultaneously solving the problems caused by lithium polysulfides and lithium dendrites generated in a conventional lithium-sulfur battery wherein the separator includes a porous substrate alternately laminated with a graphene oxide layer and a boron nitride layer on at least one side thereof, and to a lithium-sulfur battery including the same.
    Type: Application
    Filed: December 21, 2017
    Publication date: October 15, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jieun SONG, Kwonnam SOHN, Doo Kyung YANG, Yun Kyoung KIM
  • Publication number: 20200321579
    Abstract: A separator capable of simultaneously solving the problems caused by lithium polysulfide and lithium dendrite generated in a conventional lithium-sulfur battery wherein the separator includes a porous substrate coated with graphene oxide and boron nitride on at least one side, and a lithium-sulfur battery including the same.
    Type: Application
    Filed: December 21, 2017
    Publication date: October 8, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Jieun SONG, Kwonnam SOHN, Doo Kyung YANG, Yun Kyoung KIM
  • Publication number: 20200203756
    Abstract: A positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same, and in particular, a positive electrode for a lithium-sulfur battery including an active material, a conductive material, a binder and an additive, wherein the additive includes an organic acid lithium salt, the organic acid lithium salt including a dicarboxyl group. By including a dicarboxyl group-including organic acid lithium salt as the additive, the positive electrode for the lithium-sulfur battery is capable of enhancing capacity and lifetime properties of the lithium-sulfur battery through enhancing lithium ion migration properties.
    Type: Application
    Filed: May 25, 2018
    Publication date: June 25, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Yun Kyoung KIM, Doo Kyung YANG, Seung Yoon YANG
  • Publication number: 20200136127
    Abstract: An electrode including an additive for forming pores with an average particle diameter of 1 ?m or greater, and a lithium secondary battery including the electrode. The porosity of the porous particles may be from 50% to 95%. The porosity of the electrode increases by including the additive for forming pores. As the porosity of the electrode increases by the additive for forming pores, and accordingly, effects of having excellent electrode reactivity and enhanced initial capacity are obtained even under high loading.
    Type: Application
    Filed: June 27, 2018
    Publication date: April 30, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Eunkyung CHO, Yun Kyoung KIM, Kwonnam SOHN, Doo Kyung YANG
  • Patent number: 10522825
    Abstract: The present disclosure relates to a positive electrode active material and a positive electrode comprising metal nano particles, and a lithium-sulfur battery comprising the same, and in particular, to a positive electrode for a lithium-sulfur battery comprising a positive electrode active material of a sulfur-metal catalyst-carbon composite, and a lithium-sulfur battery comprising the same. The lithium-sulfur battery using a positive electrode comprising metal nano particles according to the present disclosure increases reactivity of sulfur, a positive electrode active material, and increases electrical conductivity of an electrode by the dispersion of the metal nano particles in the electrode so as to increase reactivity and electric capacity of the positive electrode. In addition, battery reaction products such as lithium sulfide (Li2S) are readily decomposed by a catalyst reaction, and therefore, lifespan characteristics can be improved.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: December 31, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Yun Kyoung Kim, Doo Kyung Yang, Dong Wook Lee
  • Publication number: 20190051940
    Abstract: The present disclosure relates to an electrolyte for a lithium secondary battery, and in particular, to a liquid electrolyte capable of stabilizing lithium metal and suppressing lithium dendrite growth, and a lithium secondary battery including the same. The lithium secondary battery provided with the electrolyte according to the present disclosure has an excellent cycle-dependent capacity retention rate, and accordingly, is effective in improving a battery lifespan property.
    Type: Application
    Filed: December 1, 2016
    Publication date: February 14, 2019
    Applicant: LG CHEM, LTD.
    Inventors: In Tae PARK, Doo Kyung YANG, Yun Kyoung KIM
  • Publication number: 20180375088
    Abstract: The present invention relates to a carbon-based fiber sheet and a lithium-sulfur battery including the same. The carbon-based fiber sheet for the lithium-sulfur battery according to the present invention is doped with a high concentration of nitrogen and thus plays a role of preventing diffusion by adsorbing lithium polysulfide eluted from a positive electrode during charging and discharging, thereby suppressing a shuttle reaction and thus improving capacity and lifecycle properties of the lithium-sulfur battery.
    Type: Application
    Filed: March 23, 2017
    Publication date: December 27, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Yun Kyoung KIM, Taek Gyoung KIM, Kwonnam SOHN, Doo Kyung YANG, Mira IM
  • Publication number: 20180138503
    Abstract: The present invention relates to a positive electrode for a lithium-sulfur battery, a manufacturing method therefor and a lithium-sulfur battery containing the same. The positive electrode for a lithium-sulfur battery comprises: a positive electrode active material comprising a sulfur-carbon composite; and a sulfur-carbon compound. The lithium-sulfur battery of the present invention can overcome low battery capacity caused by the decrease in the density of sulfur, and thus capacity characteristics and battery lifetime characteristics are improved.
    Type: Application
    Filed: September 9, 2016
    Publication date: May 17, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Yun Kyoung KIM, Doo Kyung YANG, Ki Young KWON, In Tae PARK
  • Publication number: 20180019465
    Abstract: The present disclosure relates to a positive electrode active material and a positive electrode comprising metal nano particles, and a lithium-sulfur battery comprising the same, and in particular, to a positive electrode for a lithium-sulfur battery comprising a positive electrode active material of a sulfur-metal catalyst-carbon composite, and a lithium-sulfur battery comprising the same. The lithium-sulfur battery using a positive electrode comprising metal nano particles according to the present disclosure increases reactivity of sulfur, a positive electrode active material, and increases electrical conductivity of an electrode by the dispersion of the metal nano particles in the electrode so as to increase reactivity and electric capacity of the positive electrode. In addition, battery reaction products such as lithium sulfide (Li2S) are readily decomposed by a catalyst reaction, and therefore, lifespan characteristics can be improved.
    Type: Application
    Filed: September 23, 2016
    Publication date: January 18, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Yun Kyoung KIM, Doo Kyung YANG, Dong Wook LEE
  • Publication number: 20100316989
    Abstract: The present invention relates to a method for screening an inhibitory agent of HBV proliferation by measuring the interaction (binding strength) between capsid protein and surface protein, necessary for the proliferation of HBV, by using cellular imaging, more precisely a method for measuring changes on cellular imaging caused by the interaction between a fusion protein containing PreS domain of HBV surface protein and PH (Pleckstrin homology) domain sequence and a fusion protein containing capsid protein and fluorescence protein (GFP) interacting with the said fusion protein. The method of the present invention detecting the interaction between proteins necessary for HBV proliferation at cellular level can be effectively used for the screening of a novel inhibitory agent of HBV proliferation at cellular level.
    Type: Application
    Filed: November 21, 2008
    Publication date: December 16, 2010
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyesung Jeon, Soo Jin Oh, Yeon Gyu Yu, Yun-Kyoung Kim
  • Patent number: 7694042
    Abstract: Digital logic processing devices capable of reduced power consumption may be provided. A digital logic processing device may include one or more processing elements, an input FIFO for storing data, a processing unit, and a clock controller circuit. The processing unit may process data from the input FIFO and the clock controller circuit may control a clock signal supplied to the input FIFO and the processing unit. The clock controller circuit may monitor whether there is data to be transferred to the input FIFO and states of the input FIFO and the processing unit and may control the clock signal.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: April 6, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Aeon Lee, Yong-Ha Park, Young-Jin Chung, Yun-Kyoung Kim
  • Publication number: 20070174514
    Abstract: Digital logic processing devices capable of reduced power consumption may be provided. A digital logic processing device may include one or more processing elements, an input FIFO for storing data, a processing unit, and a clock controller circuit. The processing unit may process data from the input FIFO and the clock controller circuit may control a clock signal supplied to the input FIFO and the processing unit. The clock controller circuit may monitor whether there is data to be transferred to the input FIFO and states of the input FIFO and the processing unit and may control the clock signal.
    Type: Application
    Filed: November 3, 2006
    Publication date: July 26, 2007
    Inventors: Jin-Aeon Lee, Yong-Ha Park, Young-Jin Chung, Yun-Kyoung Kim
  • Publication number: 20060156204
    Abstract: A context-adaptive variable length coding (VLC) apparatus includes a coefficient information generation unit configured to generate coefficient information used for coding variable-length-code coefficients for a selected block of a selected macroblock of image data that is read out in response to an information generation control signal, a bit data generation unit configured to operate in response to a bit generation control signal, and to code coefficients of a previous block, which is read out just before the selected block, using coefficient information of the previous block, and a control unit configured to generate the information generation control signal and the bit generation control signal, and to cause the coefficient information generation unit and the bit data generation unit to operate at in parallel using the information generation control signal and the bit generation control signal. A method of variable-length coding coefficients of image data is also provided.
    Type: Application
    Filed: January 13, 2006
    Publication date: July 13, 2006
    Inventors: Kyung-koo Lee, Jung-sun Kang, Jin-hyun Cho, Seung-sick Jun, Chang-hyun Yim, Yun-kyoung Kim
  • Publication number: 20060115002
    Abstract: An apparatus and method for pipelined deblocking includes a filter having a filtering engine, a plurality of registers in signal communication with the filtering engine, a pipeline control unit in signal communication with the filtering engine, and a finite state machine in signal communication with the pipeline control unit; and a method of filtering a block of pixel data processed with block transformations to reduce blocking artifacts includes filtering a first edge of the block, and filtering a third edge of the block no more than three edges after filtering the first edge, wherein the third edge is perpendicular to the first edge.
    Type: Application
    Filed: September 14, 2005
    Publication date: June 1, 2006
    Inventors: Yun-Kyoung Kim, Jung-Sun Kang
  • Patent number: D742738
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 10, 2015
    Assignee: KORLOY INC.
    Inventors: Byoung-Soo Kim, Yun-Kyoung Kim
  • Patent number: D742739
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 10, 2015
    Assignee: KORLOY INC.
    Inventors: Byoung-Soo Kim, Yun-Kyoung Kim
  • Patent number: D742740
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 10, 2015
    Assignee: KORLOY INC.
    Inventors: Byoung-Soo Kim, Yun-Kyoung Kim
  • Patent number: D743254
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: November 17, 2015
    Assignee: KORLOY INC.
    Inventors: Byoung-Soo Kim, Yun-Kyoung Kim