Patents by Inventor Kwan-Soo Lee

Kwan-Soo 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: 20250029786
    Abstract: A multilayer electronic component includes a body including a dielectric layer and first and second internal electrodes disposed alternately in a first direction with the dielectric layer interposed therebetween, and including first and second surfaces opposing each other in the first direction, third and fourth surfaces connected to the first and second surfaces and opposing each other in the second direction, and fifth and sixth surfaces connected to the first to fourth surfaces and opposing each other in the third direction; a side margin portion disposed on the fifth and sixth surfaces; and an external electrode disposed on the third and fourth surfaces, wherein the side margin portion includes polydopamine, and wherein an average size of the plurality of dielectric grains included in the side margin portion is different from an average size of the plurality of dielectric grains included in the dielectric layer.
    Type: Application
    Filed: March 25, 2024
    Publication date: January 23, 2025
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong PARK, Jung Jin PARK, Kwan Soo PARK, Jong Ho LEE, Chang Ho SEO, Sun Mi KIM, Hyun Sik CHAE
  • Publication number: 20250029787
    Abstract: A multilayer electronic component includes a body including a capacitance formation portion including a dielectric layer and internal electrodes alternately disposed in a first direction, and a cover portion disposed on both surfaces of the capacitance formation portion opposing each other in the first direction; and an external electrode disposed on the body and connected to the internal electrode, wherein the cover portion includes polydopamine.
    Type: Application
    Filed: April 4, 2024
    Publication date: January 23, 2025
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jung Jin PARK, Yong PARK, Kwan Soo PARK, Ho Sam CHOI, Rak Hyeon BAEK, Hyo Sung CHOI, Sun Mi KIM, Jong Ho LEE
  • Publication number: 20250023214
    Abstract: A jelly-roll type electrode assembly, includes a first electrode, a first separator, a second electrode, and a second separator sequentially stacked and would. A swelling tape is attached on at least one surface of the first electrode. The first electrode includes a first end portion from which winding begins and a second end portion opposite the first end portion at which the winding ends. The swelling tape is attached such that a first end portion of the swelling tape aligns with the first end portion of the first electrode.
    Type: Application
    Filed: September 26, 2023
    Publication date: January 16, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Seongmo Koo, Young Soo Kim, Kwan Soo Lee, Byeongjoon Lee
  • Publication number: 20240339736
    Abstract: A secondary battery according to one embodiment of the present disclosure includes an electrode assembly including electrodes and a separator; a battery can housing the electrode assembly and having an upper end; and a safety vent coupled to the open upper end of the battery can. The electrode assembly includes an electrode tab protruding from one of the electrodes in a direction towards the safety vent. The safety vent is formed with a notch part extending along a circumferential direction. The safety vent includes a central portion positioned radially inside the notch part and an outer peripheral portion positioned radially outside the notch part, where the electrode tab is attached to a lower surface of the outer peripheral portion.
    Type: Application
    Filed: December 15, 2022
    Publication date: October 10, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Young Soo Kim, Kwan Soo Lee
  • Publication number: 20240322182
    Abstract: A negative electrode for a secondary battery comprises a negative electrode mixture disposed on at least one surface of a negative electrode current collector, wherein the negative electrode mixture comprises a negative electrode active material and a conductive material, wherein the negative electrode active material comprises a silicon-based active material, and wherein the conductive material is composed of a single-walled carbon nanotube (SWCNT).
    Type: Application
    Filed: November 1, 2022
    Publication date: September 26, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Aravindaraj Govindaraj Kannan, Kwan Soo Lee, Eun Sun Choi, Gayoung Shim
  • Patent number: 12057565
    Abstract: The present disclosure relates to a jelly-roll type electrode assembly in which a long sheet-type cathode and a long sheet-type anode are wound in a state where a separator is interposed between the cathode and the anode, wherein the anode is configured such that an anode mixture is formed on both sides of an anode current collector, and the anode current collector is configured such that when winding to form an electrode assembly, if a side that winds inward is referred to a first side and a side that winds outward is referred to a second side, an active material of a first anode mixture coated on the first side contains 70 wt % or more artificial graphite as an active material based on the total weight of the active material, and an active material of a second anode mixture coated on the second side contains 70 wt % or more natural graphite as an active material based on the total weight of the active material.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: August 6, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Seongmo Koo, Kwan Soo Lee, Jaekyo Noh
  • Publication number: 20240234688
    Abstract: A positive electrode for a secondary battery, including a positive electrode mixture layer present on at least one surface of a current collector. The positive electrode mixture layer includes a positive electrode active material, a conductive material, a binder, and a dispersant. The dispersant includes a mixture of a butadiene-acrylonitrile-containing first dispersant and a styrene-ethylene oxide-containing second dispersant. The dispersant is present in an amount of 0.1% by weight or more to less than 0.3% by weight based on the total weight of the positive electrode mixture layer, an electrode assembly and a secondary battery comprising the same.
    Type: Application
    Filed: October 5, 2022
    Publication date: July 11, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jaekyo NOH, Kwan Soo LEE, Seongmo KOO
  • Publication number: 20240204357
    Abstract: A jelly-roll type electrode assembly includes a first separator, a second separator, a negative electrode, and a positive electrode. The first separator and second separator are positioned adjacent each other in a separator overlapping portion and extend with at least three layers in a first direction toward a core of the electrode assembly between an inner surface of the positive electrode and an outer surface of the negative electrode. An adhesive tape is located in at least one of a location between the outer surface of the positive electrode and an inner surface of the first separator, and a location between an outer surface of the negative electrode and the inner surface of the first separator.
    Type: Application
    Filed: December 1, 2023
    Publication date: June 20, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Seongmo Koo, Young Soo Kim, Jaehee Kim, Taehyun Kim, Kwan Soo Lee, Byeongjoon Lee
  • Publication number: 20240204184
    Abstract: A secondary battery including a positive electrode, a negative electrode, and a separator. The positive electrode includes a positive electrode mixture layer on at least one surface of a positive electrode current collector. The positive electrode mixture layer includes a positive electrode active material. positive electrode active doped with a dopant, and includes a lithium transition metal oxide where a molar ratio of Ni is 88% or more based on the total amount of transition metals excluding Li present in the positive electrode active material. The negative electrode includes a negative electrode mixture layer on at least one surface of the negative electrode current collector, which includes a negative electrode active material, which includes a silicon-containing active material. The positive electrode has an initial efficiency ratio of an initial discharge capacity to an initial charge capacity in a secondary battery using lithium as a counter electrode of 85% to 89%.
    Type: Application
    Filed: October 5, 2022
    Publication date: June 20, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Jaekyo NOH, Kwan Soo LEE, Seongmo KOO, Aravindaraj Govindaraj KANNAN, Dongwook KIM, Young Soo KIM
  • Publication number: 20240186588
    Abstract: A jelly-roll electrode assembly includes first and second electrodes spaced apart from each other and helically arranged in a first direction around a winding axis of a central core of the assembly. A separator overlapping portion includes a first separator positioned adjacent an inner surface of a terminal end of the second electrode and extending in a second direction opposite the first direction toward the central core, and a second separator positioned adjacent a terminal end of the first separator and extending in the second direction opposite the first direction toward the central core. A loop portion in which the first and second separators are looped about each other in the central core to extend in the first direction around the first and second electrodes such that the second separator extends in both the first and second directions within the separator overlapping portion.
    Type: Application
    Filed: December 1, 2023
    Publication date: June 6, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Seongmo Koo, Young Soo Kim, Eun Ji Park, Kwan Soo Lee, Byeongjoon Lee
  • Publication number: 20240055741
    Abstract: A winding type electrode assembly includes a positive electrode having a positive electrode collector that includes a positive electrode active material portion and a positive electrode non-coating portion; a positive electrode tab provided on the positive electrode non-coating portion; a negative electrode having a negative current collection that includes a negative electrode active material portion and a negative electrode non-coating portion; a negative electrode tab provided on the negative electrode non-coating portion; a protective tape and a separator configured to insulate the positive electrode from the negative electrode. The negative electrode non-coating portion includes a core-side negative electrode non-coating portion disposed at a core when the positive electrode, the negative electrode, and the separator are wound. The negative electrode tab is disposed on one surface of opposite surfaces of the core-side negative electrode non-coating portion.
    Type: Application
    Filed: December 22, 2021
    Publication date: February 15, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: So Yeon KIM, Jang Bae KIM, Do Hyeong KIM, Kwan Soo LEE
  • Publication number: 20230253667
    Abstract: A secondary battery according to an embodiment of the present disclosure includes an electrode assembly; a battery case that houses the electrode assembly; and a cap assembly that is coupled to an open upper part of the battery case. The cap assembly comprises a current interrupt device (CID); a safety vent located on the current interrupt device and electrically connected to the current interrupt device; and an insulating disk located between the current interrupt device and the safety vent.
    Type: Application
    Filed: September 29, 2021
    Publication date: August 10, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Soodong Noh, Kwan Soo Lee, Jeahyeok Ryu
  • Publication number: 20230231262
    Abstract: The present invention relates to a secondary battery. The secondary battery includes an electrode assembly in which electrodes and separators are alternately stacked to be wound, a cylindrical can comprising an accommodation part, in which the electrode assembly is accommodated, the can having an opening, and a cap assembly configured to cover the opening. The cap assembly includes a safety vent comprising a notching part that is ruptured when an internal pressure of the battery increases, the notching part has a circular shape in a plan view, the electrode assembly comprises an electrode tab connected to each of the electrodes, the safety vent is connected to the electrode tab and an external terminal, wherein the electrode tab and the external terminal are connected to different sides of an inner side and an outer side with respect to the notching part in the safety vent in the plane view.
    Type: Application
    Filed: August 5, 2021
    Publication date: July 20, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Eun Sun Choi, Kwan Soo Lee, Wook Hee Jang, Jong Pil Jegal
  • Patent number: 11631911
    Abstract: A gas measuring apparatus for a secondary battery comprises: a chamber accommodating a secondary battery therein; a heater unit applying heat to the chamber to ignite the secondary battery accommodated in the chamber; a collection tube connected to the inside of the chamber to collect a gas generated in the secondary battery; a vacuum unit connected to the collection tube to vacuumize the inside of the chamber so as to introduce the gas into the collection tube; and a gas measuring unit measuring an amount of gas introduced into the collection tube.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: April 18, 2023
    Assignee: LG Energy Solution, Ltd.
    Inventors: Sang Wan Kim, Kwan Soo Lee, Duk Hyun Ryu
  • Publication number: 20220363860
    Abstract: Poroelastic materials, methods of making such materials, biosensors comprising such materials, and methods of making and using such biosensors. According to one aspect, a poroelastic material is formed by a process that includes depositing a prepolymer composition on a substrate, annealing the prepolymer composition in a pressurized steam environment at a temperature and for a duration sufficient to form a porous medium having a solid matrix formed of a polymer derived from the prepolymer composition, infiltrating the porous medium with a liquid that includes electrically conductive nanomaterials such that the electrically conductive nanomaterials are located within pores of the porous medium, and evaporating the liquid such that the electrically conductive nanomaterials remain in and/or connected through the pores of the porous medium.
    Type: Application
    Filed: May 11, 2022
    Publication date: November 17, 2022
    Inventors: Craig J. Goergen, Chi Hwan Lee, Bongjoong Kim, Kwan-Soo Lee
  • Patent number: 11456463
    Abstract: An electrocatalytically active ink composition is used with an additive manufacturing process, such as 3D printing, to produce electrodes having consistent, adaptable, and high surface area structures. The electrocatalytically active ink composition includes a mixed powdered precursor and a polymer matrix. The mixed powdered precursor includes a carbon source, a dopant source, and/or a metal-containing catalyst. The material and electrochemical properties of the ink composition may facilitate 3D printing of electrochemically active electrodes for energy conversion and storage devices, and may allow fine-tuning of macro- and microstructures to develop electrodes having improved activity and efficiency.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: September 27, 2022
    Assignee: TRIAD NATIONAL SECURITY, LLC
    Inventors: Kwan-Soo Lee, Joseph Henry Dumont, Shaylynn LaSonja A. Crum
  • Patent number: 11255863
    Abstract: The present invention relates to a method for detecting an aggregate of an aggregate-forming polypeptide of a biosample, comprising (a) a step of spiking a dimer type of the aggregate-forming polypeptide into the biosample to be analyzed; (b) a step of incubating a resultant product of step (a) to further form an aggregate of the aggregate-forming polypeptide; (c) a step of contacting a resultant product of step (b) with a binding agent-tag in which a signal-generating tag is bound to a binding agent that binds to the aggregate of the aggregate-forming polypeptide; and (d) a step of detecting a signal which is generated from the binding agent-tag bound to the aggregate of the aggregate-forming polypeptide.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: February 22, 2022
    Assignee: PEOPLEBIO, INC.
    Inventors: Byoung Sub Lee, Kwan Soo Lee, Shin Won Kim, Kun Taek Lim, Gwang Je Kim, Ji Sun Yu
  • Publication number: 20210359294
    Abstract: The present invention relates to a cathode for a lithium secondary battery, a manufacturing method therefor, and a lithium secondary battery comprising the cathode. The cathode for a lithium secondary battery comprises a cathode active material layer formed to contain a very low content of conductive material at the outermost side thereof, whereby the cathode can have high thermal stability when an internal short-circuit of a battery occurs, and can achieve high-power properties when applied to a secondary battery.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 18, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Hee Jin KIM, Kwan Soo LEE
  • Publication number: 20210359288
    Abstract: The present disclosure relates to a jelly-roll type electrode assembly in which a long sheet-type cathode and a long sheet-type anode are wound in a state where a separator is interposed between the cathode and the anode, wherein the anode is configured such that an anode mixture is formed on both sides of an anode current collector, and the anode current collector is configured such that when winding to form an electrode assembly, if a side that winds inward is referred to a first side and a side that winds outward is referred to a second side, an active material of a first anode mixture coated on the first side contains 70 wt % or more artificial graphite as an active material based on the total weight of the active material, and an active material of a second anode mixture coated on the second side contains 70 wt % or more natural graphite as an active material based on the total weight of the active material.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 18, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Seongmo KOO, Kwan Soo LEE, Jaekyo NOH
  • Patent number: 11139532
    Abstract: A secondary battery and a method for interrupting current of the secondary battery according to the present invention includes a bimetal applied to the secondary battery. Thus, when an internal temperature of the secondary battery reaches a predetermined temperature, current may be interrupted even before an internal pressure of the secondary battery reaches a predetermined pressure to effectively interrupt the current in case of emergency, thereby preventing the secondary battery from being exploded or fired.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: October 5, 2021
    Inventors: Young San Bae, Duk Hyun Ryu, Kwan Soo Lee