Patents Assigned to LG ENERGY SOLUTION, LTD.
  • Slot Die Coater And Multi-Lane Double Coating Device Including The Same
    Publication number: 20240149292
    Abstract: A slot die coater includes a lower die block including a first manifold in which an electrode active material slurry is accommodated, an upper die block including a second manifold in which an insulating coating solution is accommodated, and a shim plate located between the lower die block and the upper die block to form a slot communicating with a discharge port. The shim plate includes a first concave portion provided in a first surface located to cover the first manifold of the lower die block, and a second concave portion provided in a second surface located to cover the second manifold of the upper die block, wherein two second concave portions are configured to be located on opposite sides of the first concave portion in a width direction.
    Type: Application
    Filed: December 7, 2022
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Joon-Sun Park, Guk-Tae Kim, Man-Hyeong Kim, Min-Hyuck Choi
  • CLEANING EQUIPMENT AND CLEANING METHOD OF SEALING TOOL
    Publication number: 20240149313
    Abstract: A cleaning equipment for a sealing tool, which is configured to remove foreign substances accumulated on first and second sealing blocks of the sealing tool, includes: a plasma generation device configured to generate plasma; and a torch device provided with a torch head configured to eject the plasma generated in the plasma generation device to pressing surfaces of the first and second sealing blocks so as to remove the foreign substances accumulated on the pressing surfaces of the first and second sealing blocks, the torch head including: a first torch member provided with a first plasma outlet configured to eject the plasma generated in the plasma generation device to the pressing surface of the first sealing block; and a second torch member provided with a second plasma outlet configured to eject the plasma generated in the plasma generation device to the pressing surface of the second sealing block.
    Type: Application
    Filed: October 13, 2022
    Publication date: May 9, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventor: Yoon Jong OH
  • Lithium Secondary Battery
    Publication number: 20240154116
    Abstract: A lithium secondary battery and a manufacturing method thereof, wherein the lithium secondary battery includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and an electrolyte, wherein the positive electrode includes a lithium iron phosphate-based compound having an amorphous-content index (AI) of 0.28 or less, preferably 0.20 to 0.28, and more preferably 0.20 to 0.27, as defined by the disclosed Equation (1).
    Type: Application
    Filed: October 25, 2023
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Joon Hyeon Kang, Sang Mun Na, O Jong Kwon, Geum Jae Han
  • Positive Electrode and Lithium Secondary Battery Manufactured Using the Same
    Publication number: 20240154127
    Abstract: A positive electrode including a positive electrode active material layer disposed on at least one surface of a positive electrode current collector, the positive electrode active material layer including a lithium transition metal phosphate, a fluorine-based binder, and a conductive material. The lithium transition metal phosphate includes a carbon coating layer formed on a surface thereof, and a ratio (B/A) of a total weight (B) of the fluorine-based binder to a total weight (A) of carbon of the conductive material and the lithium transition metal phosphate in the positive electrode active material layer is 0.7 to 1.7.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Geum Jae Han, O Jong Kwon, Kwang Jin Kim, Ki Woong Kim, In Gu An, Jung Hun Choi, Da Young Lee, Jin Su Sung, Jeong Hwa Park
  • Additive For Non-Aqueous Electrolyte Solution And Lithium Secondary Battery Comprising Same
    Publication number: 20240154165
    Abstract: An electrolyte additive comprising a compound represented by Formula 1 below forms a coating film on an electrode surface in the activation of a secondary battery, thereby the generation of a large amount of gas under a high temperature condition can be prevented, and a cell OCV drop and a decrease in capacity retention rate, which are caused by elution of metal ions from an electrode, can be effectively prevented, resulting in effective improvement in durability, performance and high-temperature safety of the battery, wherein R1, R2, and M are described herein.
    Type: Application
    Filed: October 21, 2022
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: You Kyeong Jeong, Kyoung Ho Ahn, Jun Hyeok Han, Won Kyung Shin, Won Tae Lee, Su Hyeon Ji, Young Ho Oh
  • Lithium Secondary Battery
    Publication number: 20240154166
    Abstract: The present disclosure relates to a lithium secondary battery in which an abnormal voltage drop phenomenon is improved. The lithium secondary battery comprises a negative electrode comprising a negative electrode active material, a positive electrode comprising a positive electrode active material represented by Formula 1, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte solution, wherein the non-aqueous electrolyte solution comprises a lithium salt, a non-aqueous organic solvent, a compound represented by Formula 2 as a first additive, and lithium difluorophosphate as a second additive: LiaNixCOyM1zM2wO2??[Formula 1] wherein all the variables are described herein.
    Type: Application
    Filed: October 4, 2022
    Publication date: May 9, 2024
    Applicant: LG Energy Solution, Ltd.
    Inventors: Ha Eun Kim, Chul Haeng Lee, Jeong Woo Oh, Byung Chun Park, Hyung Tae Kim, Young Mi Seo
  • BATTERY PACK INCLUDING PACK CASE FITTED WITH COOLING FINS
    Publication number: 20240154204
    Abstract: The battery pack includes a battery module; and a pack case provided to accommodate the battery module therein. The pack case includes a bottom cover accommodating the battery module; and a top plate having cooling fins protruding from one surface facing the inside of the pack case and vertically coupled to the bottom cover so that the upper portion of the battery module is covered, and is configured such that the venting gas generated in the battery module is discharged to the outside of the pack case through empty spaces formed between the cooling fins.
    Type: Application
    Filed: July 6, 2022
    Publication date: May 9, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Seung-Joon KIM, Ho-June CHI
  • COOLING FIN, BATTERY MODULE, BATTERY PACK AND DEVICE INCLUDING THE SAME
    Publication number: 20240154206
    Abstract: A battery pack includes a battery module including a battery cell stack in which a plurality of battery cells are stacked, a pack frame for accommodating the battery module, a heat sink located between the battery cell stack and the pack frame, and a cooling fin between the two battery cells adjacent to each other. The cooling fin comprises a body part in contact with the battery cell, and an extension part extending to the upper side (z-axis) of the battery cell stack and located adjacent to the heat sink. The extension part has a bent part formed by bending in a direction different from the upper side (z-axis).
    Type: Application
    Filed: July 1, 2022
    Publication date: May 9, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventors: Han Ki YOON, Young Bum CHO, Sanghyun YU, Hyeok NAMGOUNG, Wonhoe KU, Ji Won JEONG
  • ENERGY STORAGE SYSTEM COMPRISING BATTERY RACK AND SOLAR MODULE, AND METHOD FOR OPERATING ENERGY STORAGE SYSTEM
    Publication number: 20240154454
    Abstract: An energy storage system connected with at least one photovoltaic module and a power grid and including a plurality of battery racks may comprise a direct current/direct current (DC/DC) converter for controlling charging and discharging of the plurality of battery racks, a DC connector for connecting the photovoltaic module and the DC/DC converter, a power conversion system for receiving an output of the DC connector as input and converting the output of the DC connector into AC (alternating current) power, and a controller for monitoring states of the plurality of battery racks, the DC/DC converter, the photovoltaic module, and the power conversion system, comparing a DC voltage of the photovoltaic module and a DC voltage of the power conversion system, and controlling operations of the power conversion system and the DC/DC converter according to a result of comparison.
    Type: Application
    Filed: August 22, 2022
    Publication date: May 9, 2024
    Applicant: LG ENERGY SOLUTION, LTD.
    Inventor: Jinyoung CHOI
  • System for cooling components arranged within an enclosure
    Patent number: 11978875
    Abstract: A method of cooling a rack of heat dissipating components comprises cooling air, and porting the cooled air into a volume in front of the rack from above the volume. The method further comprises moving the cooled air from the volume in front of the rack to a plenum at a rear portion of the rack to pressurize the plenum. The cooled air is moved with an air mover disposed at a bottom portion of the rack, The method also comprises flowing air from the pressurized plenum past or through heat dissipating components in the rack to the volume in front of the rack, by force of pressure in the plenum through air-directing ports in the plenum. The air may be flowed through the heat dissipating components, around the heat dissipating components, or both. The method further comprises drawing warm air from an upper portion of the volume in front of the racks to cool it again.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: May 7, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Erik C. Nelson, Scott Reitsma, James S. Tela, Bryan Nelson
  • Method for preprocessing lithium metal for lithium secondary battery
    Patent number: 11978886
    Abstract: A method for pre-treating lithium metal for a lithium secondary battery including stripping a surface oxide film formed on a surface of the lithium metal by discharging the battery, and a plating lithium metal on the surface of the lithium metal, from which the surface oxide film has been stripped, by charging the battery.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: May 7, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Intae Park, Doo Kyung Yang, Jeehyun Ahn
  • Battery cell thermal conductivity measurement device and battery cell thermal conductivity measurement method using same
    Patent number: 11978865
    Abstract: The present invention relates to a device for measuring the thermal characteristics of a pouch-type battery cell, specifically, the thermal conductivity of the battery cell, and a thermal conductivity measurement method using the same. When the battery cell thermal conductivity measurement device of the present invention is used, the thermal conductivity of a pouch-type battery cell exhibiting anisotropic thermal conductivity characteristics can be separated along each direction and measured, and thereby stability according to the thermal characteristics of a product, which uses a battery cell for a rechargeable battery, can be efficiently evaluated.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 7, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Kwang Min Kim, Woo Young Song
  • Battery inspection apparatus
    Patent number: 11977122
    Abstract: A battery inspection apparatus capable of self-diagnosing failure is provided. The battery inspection apparatus includes a contact probe, a power supply module, a power cable for providing a path for supplying the power generated by the power supply module to the contact probe, a voltage measuring module, a measuring cable configured to measure a voltage of the contact probe by the voltage measuring module, a switching module configured to selectively connect the voltage measuring module to the power cable or the measuring cable, and a control module configured to determine whether at least one of the contact probe or the power cable is abnormal based on the voltage measurement value of the voltage measuring module according to a connection state of the switching module. A verification device capable of diagnosing failure of the battery inspection apparatus is also provided.
    Type: Grant
    Filed: October 18, 2021
    Date of Patent: May 7, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Chan-Hee Lee, Young-Seo Kim, Chang-Sin Yeo, Sun-Woo Lee
  • Lithium electrode and lithium secondary battery comprising same
    Patent number: 11978852
    Abstract: A lithium electrode and a lithium secondary battery including the same, which includes a first protective layer and a second protective layer sequentially formed on at least one surface of lithium metal layer. The second protective layer contains a cross-linked ion conductive electrolyte in the interior and on the surface of the electrically conductive matrix, and thus the first protective layer has higher ion conductivity than the second protective layer, thereby preventing electrons from being concentrated into lithium dendrites formed from the lithium metal to inhibit the growth of lithium dendrites, and at the same time, physically inhibiting the growth of lithium dendrites by the second protective layer.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: May 7, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Eunkyung Park, Minchul Jang, Bora Jung, Suk Il Youn, Byoungkuk Son
  • Method of manufacturing separator-composite electrode comprising multilayer-structured inorganic layer and separator-composite electrode manufactured thereby
    Patent number: 11978921
    Abstract: The present invention relates to a method of manufacturing a separator-composite electrode having a multilayer-structured inorganic layer and a separator-composite electrode manufactured thereby. The present invention provides a method of manufacturing a separator-composite electrode and a separator-composite electrode using the same, wherein there is no separator substrate by forming an inorganic layer serving as an insulating layer in multiple layers, thereby safety is improved and the capacity of a battery is not reduced compared to a conventional battery.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: May 7, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Kyoung Ho Kim, Bum Young Jung, Jeong Gil Kim, Jung Gu Han
  • Ceria-carbon-sulfur composite, method for preparing same, and positive electrode and lithium-sulfur battery comprising same
    Patent number: 11978888
    Abstract: A ceria-carbon-sulfur (CeO2—C—S) composite including a ceria-carbon (CeO2—C) composite in which cylindrical carbon materials having ceria (CeO2) particles bonded to surfaces thereof are entangled and interconnected to each other in three dimensions; and sulfur introduced into at least a portion of an outer surface and an inside of the ceria-carbon composite, a method for preparing the same, and positive electrode for a lithium-sulfur battery and a lithium-sulfur battery including the same.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: May 7, 2024
    Assignees: LG ENERGY SOLUTION, LTD., SOGANG UNIVERSITY RESEARCH FOUNDATION
    Inventors: Seungbo Yang, Kwonnam Sohn, Jun Hyuk Moon, Doo Kyung Yang, Donghee Gueon, Jeong Tae Hwang
  • Non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery comprising same
    Patent number: 11978859
    Abstract: Provided is a non-aqueous electrolyte solution for a lithium secondary battery containing a lithium salt, an organic solvent and a phosphoric acid-based additive of Formula 1 below, which significantly improves the high temperature stability of the lithium secondary battery: wherein R is described herein.
    Type: Grant
    Filed: November 8, 2022
    Date of Patent: May 7, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Haeun Kim, Jeongwoo Oh, Chul Haeng Lee
  • Apparatus and method for manufacturing secondary battery
    Patent number: 11978861
    Abstract: An apparatus for manufacturing the secondary battery includes a first measurement part photographing unit cells, which are continuously transferred, to measure a position of a first electrode having a relatively large size of the first electrode and a second electrode, which are provided in the unit cells and have polarities opposite to each other, from an image of each of the photographed unit cells; and a first arrangement part disposing the unit cell passing through the first measurement part at a preset position of the separation sheet to adjust an interval between the unit cells disposed on the separation sheet on the basis of the position of the first electrode, which is measured by the first measurement part.
    Type: Grant
    Filed: February 18, 2019
    Date of Patent: May 7, 2024
    Assignee: LG ENERGY SOLUTION, LTD.
    Inventors: Won Nyeon Kim, Jung Kwan Pyo, Cha Hun Ku, Byeong Kyu Lee, Tai Jin Jung
  • Non-aqueous electrolyte solution for lithium secondary battery
    Patent number: 11978856
    Abstract: A non-aqueous electrolyte solution for a lithium secondary battery according to the present technology includes: a lithium salt; an organic solvent; and a first additive, and the first additive includes a compound represented by following Chemical formula 1: Herein, R1 is a substituted or unsubstituted unsaturated hydrocarbon group having 2 to 20 carbon atoms, and R2 is one selected from the group consisting of a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms and a substituted or unsubstituted cyclic alkyl group having 3 to 8 carbon atoms.
    Type: Grant
    Filed: November 17, 2021
    Date of Patent: May 7, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Jung Gu Han, Jung Min Lee, Chul Haeng Lee, Chul Eun Yeom, Kyung Mi Lee
  • Non-aqueous electrolyte including additive for non-aqueous electrolyte, and lithium secondary battery including the non-aqueous electrolyte
    Patent number: 11978857
    Abstract: The present disclosure provides a non-aqueous electrolyte including an additive for a non-aqueous electrolyte represented by Formula 1 below: wherein, R1 to R5 may each independently be any one selected from the group consisting of H, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an alkoxy group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms, a cycloalkenyl group having 3 to 12 carbon atoms, and a nitrile group.
    Type: Grant
    Filed: September 29, 2022
    Date of Patent: May 7, 2024
    Assignee: LG Energy Solution, Ltd.
    Inventors: Hyung Tae Kim, Chul Haeng Lee, Jeong Woo Oh, Byung Chun Park, Young Mi Seo, Sung Guk Park