Patents by Inventor Ho-chan Lee

Ho-chan Lee 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: 20260221413
    Abstract: An electrode, a secondary battery including the same and an energy storage system are provided. The electrode includes an electrode current collector and an electrode layer disposed on the electrode current collector. The electrode layer includes an active material, a conductive material, and a binder. The binder includes a fluorine-based polymer and a modified polyolefin. The fluorine-based polymer is polytetrafluoroethylene (PTFE), the modified polyolefin includes a carboxylic acid anhydride derived functional group, and an amount of the modified polyolefin ranges from 2 to 40 parts by weight based on 100 parts by weight of the binder.
    Type: Application
    Filed: December 29, 2023
    Publication date: July 30, 2026
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang-Min Kwak, Ho-Chan Lee, Seong-Wook Kang, Soon-Hyung Kwon, Kyung-Hwan Yoon, Ki-Seok Lee, Nam-Jeong Lee, Jae-Sung Han, Moon-Soo Park
  • Publication number: 20260112607
    Abstract: The present disclosure relates to an electrode for an electrochemical device, and more particularly, to a dry electrode and a method for manufacturing the same. According to an aspect of the present disclosure, there is provided a new method for manufacturing a dry electrode free of wrinkles in an uncoated portion having no electrode active material layer on a current collector.
    Type: Application
    Filed: April 20, 2023
    Publication date: April 23, 2026
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang-Min Kwak, Ki-Seok Lee, Ho-Chan Lee, Seong-Wook Kang, Kyung-Hwan Yoon, Nam-Jeong Lee, Jae-Sung Han, Moon-Soo Park
  • Publication number: 20260051472
    Abstract: A dry electrode manufacturing apparatus includes a powder sheeting device configured to shape a dry material including an electrode active material into an electrode sheet and a calendaring device including at least one rolling unit, each rolling unit including a pair of rolling rolls to roll the electrode sheet supplied from the powder sheeting device. The apparatus further includes a lamination roll configured to laminate a current collector and the rolled electrode sheet with a target thickness through the calendaring device to form an electrode. The lamination roll is disposed facing toward one of the pair of rolling rolls of the rolling unit that is last to roll the electrode sheet.
    Type: Application
    Filed: October 24, 2023
    Publication date: February 19, 2026
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang-Min Kwak, Seong-Wook Kang, Kyung-Hwan Yoon, Ki-Seok Lee, Nam-Jeong Lee, Ho-Chan Lee, Won-Hak Cho, Jae-Sung Han, Moon-Soo Park, Koo-Youn Hwang
  • Publication number: 20250226381
    Abstract: An electrode assembly includes a mono-cell group including at least one mono-cell; a single-sided electrode stacked on at least one side of the upper outermost side and the lower outermost side of the mono-cell group; and a separator interposed between the mono-cell group and the single-sided electrode. The single-sided electrode includes a current collector and an electrode layer disposed merely on one side of the current collector. The electrode layer has a porosity of 30% or less, and the single-sided electrode shows a curl of 30 mm or less. The method of preparing the single-sided electrode is also provided. Additionally, a secondary battery including the electrode assembly and an energy storage system is provided.
    Type: Application
    Filed: April 20, 2023
    Publication date: July 10, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang-Min Kwak, Kwang-Ho Yoo, Dong-Oh Shin, Nam-Jeong Lee, Ho-Chan Lee
  • Publication number: 20230099713
    Abstract: Disclosed is a method for manufacturing a dry electrode. In the method, a conductive primer layer and an insulating protective layer are formed in a single step, or the insulating protective layer is formed first before an electrode active material layer is formed and after the conductive primer layer is formed. In this manner, there is no gap between the insulating protective layer and the conductive primer layer, thereby providing further improved insulation property. In addition, since the dry electrode is manufactured by laminating the current collector having the conductive primer layer and the insulating protective layer with the dry electrode film, an electrode having excellent adhesion and improved stability can be obtained advantageously.
    Type: Application
    Filed: September 30, 2022
    Publication date: March 30, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang-Min Kwak, Koo-Seung Chung, Nam-Jeong Lee, Ho-Chan Lee, Dong-Oh Shin, Kwang-Ho Yoo
  • Publication number: 20230059162
    Abstract: Provided are a learning processing system, and an apparatus and method for determining a number of local parameters. A method of determining a number of local parameters may include receiving a number of local parameters less than or equal to a number of local parameters to be aggregated from at least one distributed learning processing apparatus; acquiring a T-th global parameter using the number of local parameters less than or equal to the number of local parameters to be aggregated; and updating or maintaining the number of local parameters to be aggregated depending on whether signs are different between a (T?1)-th global parameter and the T-th global parameter.
    Type: Application
    Filed: August 16, 2022
    Publication date: February 23, 2023
    Applicant: Korea University Research And Business Foundation
    Inventors: Sangheon PACK, Ho-Chan LEE, HeeWon KIM, Haneul KO
  • Patent number: 10140247
    Abstract: Methods and apparatuses are provided for compressing configuration data. The configuration data, which includes control data corresponding to at least one processing unit used in each of a plurality of cycles, is stored. A plurality of processing units of a reconfigurable processor is divided into a plurality of groups. The configuration data is partitioned into a plurality of pieces of sub-configuration data. Each piece of sub-configuration data corresponding to a respective one of the plurality of groups. If a plurality of adjacent cycles include identical control data, the configuration data is compressed by deleting control data of all but one of the plurality of adjacent cycles, for each sub-configuration data.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: November 27, 2018
    Assignees: Samsung Electronics Co., Ltd, Seoul National University R&DB Foundation
    Inventors: Bernhard Egger, Ho-chan Lee, Yeon-bok Lee, Suk-jin Kim
  • Publication number: 20180067895
    Abstract: Methods and apparatuses are provided for compressing configuration data. The configuration data, which includes control data corresponding to at least one processing unit used in each of a plurality of cycles, is stored. A plurality of processing units of a reconfigurable processor is divided into a plurality of groups. The configuration data is partitioned into a plurality of pieces of sub-configuration data. Each piece of sub-configuration data corresponding to a respective one of the plurality of groups. If a plurality of adjacent cycles include identical control data, the configuration data is compressed by deleting control data of all but one of the plurality of adjacent cycles, for each sub-configuration data.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 8, 2018
    Inventors: Bernhard EGGER, Ho-chan LEE, Yeon-bok LEE, Suk-jin KIM
  • Publication number: 20120107512
    Abstract: The invention relates to a binder for binding RBSC (reaction-bonded silicon carbide), which is used to prepare RBSC assembly, wherein it includes a sintered body obtained by sintering a mixed powder of at least one substance selected from the group having Al, Ti, Fe, Mg, Cu and Ge, and silicon, or a powder obtained by milling the sintered body; and with regard to the mixing ratio of the mixed powder, the maximum amount of silicon is an amount rendering the complete melting temperature of phase in phase diagram of the mixed powder to be at most 1400° C., and the minimum amount of silicon is a larger value of either 50 at % or the minimum amount of silicon in silicon+liquid phase zone of the phase diagram, and a method of binding RBSC using the same.
    Type: Application
    Filed: December 23, 2011
    Publication date: May 3, 2012
    Applicant: SKC Solmics co.,Ltd
    Inventors: Sung-sic HWANG, Soo-hwan An, Seok-ho Jang, Hyung-woo Jun, Ho-chan Lee, Kwang-il Ju
  • Publication number: 20100031605
    Abstract: A composite concrete column comprising: upper and lower concrete column portions extending in the lengthwise direction and having an exposed portion between the upper and lower concrete column portions; an H-beam connected between the upper and lower concrete column portions to be exposed at the exposed portion; and a plurality of reinforcement bars embedded in the upper and lower concrete column portions around the H-beam to extend in the lengthwise direction.
    Type: Application
    Filed: April 25, 2008
    Publication date: February 11, 2010
    Inventors: Won-Kee Hong, Ho-Chan Lee, Jum-Han Kim
  • Patent number: 6824712
    Abstract: A selectively light-absorptive material for a color display, comprising a tetrazaporphyrine derivative having the formula: where R1, R2, R3, R4, R5, R6, R7 and R8 are independently selected from the group consisting of hydrogen; an unsubstituted phenyl group, an alkyl group; an alkoxy group; a nitro group; halogen atoms; a halide; a cyano group; an alkylamino group; an aminoalkyl group; and a phenyl group having a substitutent selected from an alkyl group, an alkoxy group, a nitro group, halogen atoms, a halide, an alkylamino group, an aminoalkyl group and a cyano group, or two neighboring substituents among R1, R2, R3, R4, R5, R6, R7 and R8 are fused and substituted with 1 to 3 aromatic cyclic compounds, and unsubstituted groups among R1, R2, R3, R4, R5, R6, R7 and R8 are independently selected from the group consisting of hydrogen, an alkyl group, an alkoxy group, an allyl group, halogen atoms, a halide, a cyano group and a nitro group.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: November 30, 2004
    Assignee: SKC Co. Ltd.
    Inventors: Seung-gak Yang, Jin-bum Park, Geun-taek Bae, Ho-chan Lee