Patents by Inventor Yong-Tae Lee

Yong-Tae 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: 20250149614
    Abstract: A plasma processing apparatus of a unit cell for a secondary battery includes a discharge roller configured to transport a separator of the unit cell for a secondary battery and allowing a metal member to be placed therein, and a plasma processing member configured to generate plasma through a mutual reaction with the metal member and irradiate the plasma to a surface of the separator, wherein a pattern portion having a certain stepped portion is formed on an outer surface of the discharge roller.
    Type: Application
    Filed: August 31, 2023
    Publication date: May 8, 2025
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Sang-Kyun LEE, Yong-Tae LEE, Hun-Hyeong LEE, Man-Woong HAN
  • Patent number: 12272782
    Abstract: A secondary battery having an electrode assembly in which a positive electrode, a separator, and a negative electrode are alternately stacked, and a can configured to accommodate the electrode assembly is provided. The negative electrode is disposed on an end of the electrode assembly in a direction of one side of the electrode assembly so that a negative electrode non-coating portion protrudes more than the separator with respect to a direction of a winding center axis of the electrode assembly. The positive electrode is disposed on an end of the electrode assembly in a direction of the other side of the electrode assembly so that a positive electrode non-coating portion protrudes more than the separator with respect to the direction of the winding center axis of the electrode assembly. The can includes a first can contacting the positive electrode and a second can contacting the negative electrode.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: April 8, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Myung Hoon Ko, Yong Tae Lee, Jung Il Park, Jee Ho Kim
  • Patent number: 12255302
    Abstract: An energy storage apparatus includes at least one battery rack having at least two battery packs; a container configured to accommodate the at least one battery rack; and an air conditioner provided with a coolant supply part, which includes at least two blowout units respectively having a nozzle with a discharge hole through which a coolant is discharged and configured to individually switch a discharge direction of the coolant, toward any, one of the at least two battery packs and individually increase or decrease a discharge amount of the coolant and a control unit configured to adjust the discharge direction and the discharge amount of the coolant of each of the at least two blowout units, and a coolant suction part configured to suck a heated coolant inside the container.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: March 18, 2025
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Ji-Ho Yoo, Dong-Ho Park, Yong-Tae Lee, Jong-Soo Lee, Sang-Woo Hong
  • Publication number: 20250041960
    Abstract: An apparatus and method for welding electrode tabs protruding from an electrode assembly to each other, which may include a guide part configured to gather the electrode tabs; and a welding part configured to weld the electrode tabs gathered by the guide part on a predetermined welding area. The guide part may be configured to press the electrode tabs toward the electrode assembly, while moving toward the electrode assembly, such that a length from the electrode assembly to the welding area increases in at least a portion of the electrode tabs before being welded by the welding part. Accordingly, some aspects of the present invention may prevent the electrode tabs from disconnecting.
    Type: Application
    Filed: November 29, 2022
    Publication date: February 6, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Ah Ram Park, Yong Tae Lee, Seung Byung Lee, Seok Je Kim
  • Patent number: 12202005
    Abstract: A slot die coating apparatus according to one embodiment of the present disclosure includes: a slot die containing a first die block and a second die block, and a sensor unit for measuring the flow rate of an electrode active material slurry which is discharged through a discharge port formed by the coupling of the first die block and the second die block, wherein the sensor unit is formed inside the first die block, and the sensor unit is connected to the discharge port via an energy dissipation part and an energy absorption part.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: January 21, 2025
    Assignee: LG Energy Solution, Ltd.
    Inventors: Chan Woo Park, Kwan Hong Bae, Yong Tae Lee
  • Publication number: 20250023202
    Abstract: An apparatus and method for welding electrode tabs protruding from an electrode assembly to each other which may include a guide part configured to gather the electrode tabs on a predetermined gathering area, a welding part configured to weld the electrode tabs gathered by the guide part, and a bending part configured to bend the electrode assembly. The bending part ensures that a length from the electrode assembly to the gathering area increases in at least a portion of the electrode tabs before being welded by the welding part. Accordingly, some aspects of the present invention may prevent the electrode tabs from disconnecting. Moreover, the present invention also relates to a secondary battery and may relate to a secondary battery manufactured by the above-described welding apparatus or method.
    Type: Application
    Filed: November 29, 2022
    Publication date: January 16, 2025
    Applicant: LG Energy Solution, Ltd.
    Inventors: Ah Ram Park, Yong Tae Lee, Seung Byung Lee, Seok Je Kim
  • Patent number: 12169689
    Abstract: A crime type inference system based on text data, may include: a keywords dictionary construction unit configured to receive crime source data, and generate a crime type keywords dictionary by extracting crime keywords; a data set construction unit configured to generate a dataset for crime type learning by using the crime source data and the keywords dictionary; a crime type prediction model training unit configured to generate a crime type prediction model by using the dataset, and train the crime type prediction model; and a crime type inference unit configured to infer a crime type by using new crime data.
    Type: Grant
    Filed: May 24, 2022
    Date of Patent: December 17, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Myung Sun Baek, Seung Hee Kim, Young Soo Park, Won Joo Park, Sang Yun Lee, Yong Tae Lee
  • Publication number: 20240380040
    Abstract: Disclosed is a battery cell, which includes an electrode assembly including a cell body and an electrode tab provided to at least one side of the cell body, a cell case configured to accommodate the electrode assembly therein, an electrode lead coupled to the electrode tab and extending from the cell case, and a tab protection module accommodated in the cell case and configured to cover at least a portion of the electrode tab, the tab protection module including a lead positioning guide and a corresponding positioning guide insert portion adapted to receive the positioning guide insert portion, wherein the positioning guide insert portion is configured to couple to the electrode lead to guide a position of the electrode lead relative to the cell case.
    Type: Application
    Filed: July 25, 2024
    Publication date: November 14, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Kyoung-Soon Yoon, Seok-Je Kim, Yong-Tae Lee, Hyun-Sang Lee
  • Publication number: 20240367428
    Abstract: The present invention relates to a plasma generation device, which forms a patterned adhesive layer on a surface of a separation sheet.
    Type: Application
    Filed: March 14, 2022
    Publication date: November 7, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Sang Kyun Lee, Kyoung Won Kang, Yong Tae Lee
  • Patent number: 12132173
    Abstract: A secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. A first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. The first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. At least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: October 29, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Jung Il Park, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Ki Youn Kim, Gyung Soo Kang
  • Publication number: 20240313266
    Abstract: A secondary battery comprises an electrode assembly including a first electrode, a separator, and a second electrode alternately stacked and wound about a central axis. A first non-coating portion that is not coated with an electrode active material protrudes farther than the separator in a first direction along the central axis, and a second non-coating portion that is not coated with the electrode active material protrudes farther than the separator in a second, opposite direction along the central axis. The first non-coating portion contacts a first connection part disposed on an end of a first can of the battery, and the second non-coating portion contacts a second connection part disposed on an end of a second can. At least one of the first connection part or the second connection part comprises a protrusion having a shape protruding towards the electrode assembly.
    Type: Application
    Filed: May 29, 2024
    Publication date: September 19, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Jung Il Park, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Ki Youn Kim, Gyung Soo Kang
  • Patent number: 12062773
    Abstract: Provided is a method for determining the wetting degree of a lithium ion battery cell using a low current test. The wetting degree determination method according to the present disclosure includes a) obtaining, as a reference charge profile, a charge profile recorded while charging a reference battery cell having undergone receiving an electrode assembly and an electrolyte solution in a case, assembling and pre-aging with a low current of 0.01 C-rate or less, b) measuring and recording a charge profile while charging another battery cell having undergone receiving an electrode assembly and an electrolyte solution in a case, assembling and pre-aging with a low current of 0.01 C-rate or less in the same way as the reference battery cell, and c) determining the wetting degree of another battery cell relative to the reference battery cell by comparative analysis of the reference charge profile and the measured charge profile.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: August 13, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Myung-Hoon Ko, Jee-Ho Kim, Yong-Tae Lee, Pil-Kyu Park
  • Publication number: 20240241050
    Abstract: A fire detection method is provided. The fire detection method calculates a singular value for determining whether smoke penetrating into a chamber is caused by a fire or a non-fire by using the processor, based on n number of normalized values of scattered light and n number of normalized values of transmitted light.
    Type: Application
    Filed: January 12, 2024
    Publication date: July 18, 2024
    Inventors: Hoe-Sung YANG, SOOCHEOL KIM, Hyunseok KIM, Jin Hwa RYU, SO YUNG PARK, KANG BOK LEE, Yong Tae LEE, Kwang-soo CHO, Kyu Won HAN
  • Publication number: 20240233516
    Abstract: The present invention is directed to reducing non-fire alarms by distinguishing between smoke caused by an actual fire and non-fire smoke generated in daily life when an event suspected to be a fire occurs. The present invention provides an apparatus and method for determining whether a fire occurs using a smoke detector, which includes a light emitter for generating multiple wavelengths, a light receiver configured to detect light scattered by particles of smoke, and a fire determiner for checking whether the strength of a signal of the detected scattered light exceeds a threshold and generating an alarm, to use characteristics of multiple wavelengths in a photoelectric fire detection apparatus. The fire determiner calculates normalized values by normalizing measured values for the scattered light, and calculates a singular value from the normalized values as a criterion for determining whether the smoke is caused by a fire or a non-fire.
    Type: Application
    Filed: December 14, 2023
    Publication date: July 11, 2024
    Inventors: Hoe-Sung YANG, Soocheol Kim, Hyunseok Kim, Jin Hwa Ryu, So Yung Park, Kang Bok Lee, Yong Tae Lee, Kwang-Soo Cho, Kyu Won Han
  • Patent number: 11940501
    Abstract: The present invention relates to a method and an apparatus for diagnosing low voltage of a secondary battery cell. The method for diagnosing low voltage of a secondary battery cell according to an embodiment of the present invention includes pre-aging a battery cell, charging the battery cell according to a preset charging condition, measuring a parameter for determining low voltage failure of the battery cell, comparing the measured parameter with a reference parameter, and performing formation when the battery cell is determined to be normal.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: March 26, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Yong Tae Lee, Myung Hoon Ko, Jee Ho Kim, Gyung Soo Kang
  • Publication number: 20240078218
    Abstract: The apparatus for validating various kinds of data and a digital twin operation includes a validation target data selector configured to select a target to be validated among various kinds of input data, a data validator configured to validate individual data for each type of data selected for validation, and a data linkage validator configured to validate various kinds of multiple data by linking the various kinds of multiple data in order to detect an error in a process of linking the various kinds of multiple data.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 7, 2024
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Myung-Sun BAEK, Young Soo PARK, Yong Tae LEE, Eui Suk JUNG
  • Patent number: 11916258
    Abstract: A secondary battery comprises an electrode assembly, a can, and an insulator. The electrode assembly includes a first electrode, a separator, and a second electrode alternately stacked and wound. The can has an accommodation part accommodating the electrode assembly therein, and the can comprises a first can and a second can having cylindrical shapes open in a direction facing each other. The insulator insulates an overlapping portion between the first can and the second can. The first can is electrically connected to the first electrode, and the second can is electrically connected to the second electrode. The insulator has a short-circuit induction through-part defined by a through-hole or a cutoff line, such that a short circuit occurs between the first can and the second can through the short-circuit induction through-part when it is deformed in shape as heat or a pressure is applied to contract or expand the insulator.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: February 27, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Gyung Soo Kang, Jee Ho Kim, Yong Tae Lee, Myung Hoon Ko, Jung Il Park, Ki Youn Kim
  • Patent number: 11869265
    Abstract: Provided are an object tracking system and an object tracking method.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: January 9, 2024
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Sungwon Byon, Eun Jung Kwon, Hyunho Park, Won-Jae Shin, Dong Man Jang, Eui Suk Jung, Yong Tae Lee
  • Publication number: 20230402675
    Abstract: A battery cell having an electrode tab with enhanced safety and improved cooling performance, and a battery module, a battery pack and a vehicle including the same is provided. The battery cell includes an electrode assembly including a cell body and an electrode tab provided to at least one side of the cell body, a cell case configured to accommodate the electrode assembly, an electrode lead drawn out of the cell case and connected to the electrode assembly through the electrode tab at a coupling portion, and a tab protection module accommodated in the cell case and covering at least a part of the electrode tab, the tab protection module including a heat dissipating material configured to discharge heat to the outside through at least a part thereof.
    Type: Application
    Filed: August 31, 2022
    Publication date: December 14, 2023
    Applicant: LG Energy Solution, Ltd.
    Inventors: Seung-Byung Lee, Ah-Ram Park, Kyoung-Soon Yoon, Seok-Je Kim, Yong-Tae Lee
  • Patent number: RE50254
    Abstract: Disclosed is an electrode assembly in which a plurality of electrode plates are stacked so that a separator is interposed between a positive electrode plate and a negative electrode plate, wherein each of the electrode plates includes an electrode tab protruding outwards at one side thereof for coupling with an electrode lead, wherein at least one electrode plate of the positive electrode plate and the negative electrode plate extends relatively longer than the separator at one end of the electrode plate where the electrode tab is located to form the electrode plate extension protruding out of the separator, and wherein the electrode plate extensions of the same polarity are coupled to each other.
    Type: Grant
    Filed: August 10, 2021
    Date of Patent: December 31, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Su-Han Park, Min-Suk Kang, In-Jung Kim, Han Kim, Yong-Tae Lee