Patents by Inventor Byeong-Kyu Lee
Byeong-Kyu 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).
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Publication number: 20220393143Abstract: Discussed is an electrode assembly manufacturing method including an operation of stacking an electrode and separator to form an electrode stack and an operation of laminating the electrode stack while heating the electrode stack in order to manufacture an electrode assembly having increased force of coupling between the electrode and the separator while preventing damage to the electrode assembly.Type: ApplicationFiled: October 6, 2020Publication date: December 8, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Byeong Kyu LEE, Su Taek JUNG, Soon Kwan KWON, Hyun Kyung SHIN
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Pouch-Shaped Battery Case Comprising Crack Prevention Structure and Method of Manufacturing the Same
Publication number: 20220311090Abstract: Disclosed are a pouch-shaped battery case including an upper case and a lower case sealed to one another, the upper case and the lower case made of a laminate sheet comprising a metal layer and a resin layer, at least one of the upper case and the lower case having a concave unit for receiving an electrode assembly, the upper case and the lower case being sealed at all corners thereof located along the outer edge of the concave unit, a middle of a first side surface of each of the upper case and the lower case having a non-sealed portion for gas discharge, the first side surface being adjacent to a second side surface of each of the upper case and the lower case through which an electrode terminal extends, a method of manufacturing the pouch-shaped battery case, and a sealing block for manufacturing the pouch-shaped battery case.Type: ApplicationFiled: June 16, 2022Publication date: September 29, 2022Applicant: LG Energy Solution, Ltd.Inventors: Byeong Kyu Lee, Cha Hun Ku, Tae Kyu Kim -
Pouch-shaped battery case comprising crack prevention structure and method of manufacturing the same
Patent number: 11394080Abstract: Disclosed are a pouch-shaped battery case including an upper case and a lower case sealed to one another, the upper case and the lower case made of a laminate sheet comprising a metal layer and a resin layer, at least one of the upper case and the lower case having a concave unit for receiving an electrode assembly, the upper case and the lower case being sealed at all corners thereof located along the outer edge of the concave unit, a middle of a first side surface of each of the upper case and the lower case having a non-sealed portion for gas discharge, the first side surface being adjacent to a second side surface of each of the upper case and the lower case through which an electrode terminal extends, a method of manufacturing the pouch-shaped battery case, and a sealing block for manufacturing the pouch-shaped battery case.Type: GrantFiled: July 13, 2018Date of Patent: July 19, 2022Inventors: Byeong Kyu Lee, Cha Hun Ku, Tae Kyu Kim -
Publication number: 20220069276Abstract: Discussed are an apparatus for manufacturing an electrode assembly, an electrode manufactured therethrough, and a secondary battery. The apparatus includes an upper and lower roll to press upper and lower portions of the stack, respectively; an upper support part to support the upper roll; a mover to allow the upper support part to move; a lower support to support both sides of the lower roll; a pressure detector provided on the lower support to measure a pressure applied to the lower roll, thereby detecting a pressure applied to the stack; and a controller to adjust the pressure applied to the stack by reflecting a pressure detection value detected in the pressure detector, the pressure detector comprising a first pressure detector to detect pressure applied to one side of the lower roll; and a second pressure detector to detect pressure applied to the other side of the lower roll.Type: ApplicationFiled: May 12, 2020Publication date: March 3, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Byeong Kyu LEE, Su Taek JUNG, Soon Kwan KWON, Hyun Kyung SHIN, Won Nyeon KIM
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Publication number: 20220006161Abstract: Discussed is a lamination device for bonding an electrode and a separator of an electrode assembly to each other. The lamination device includes: a transfer part configured to transfer the electrode assembly; a heating roller part configured to heat the electrode assembly transferred by the transfer part; and a rolling roller configured to roll the electrode assembly heated by the heating roller part so that the electrode and the separator are bonded to each other, wherein the heating roller part comprises a plurality of heating rollers configured to press and heat a surface of the electrode assembly at the same time, and the plurality of heating rollers sequentially press the surface of the electrode assembly and simultaneously heat the surface of the electrode assembly so that the electrode assembly gradually increases in temperature.Type: ApplicationFiled: November 26, 2019Publication date: January 6, 2022Applicant: LG ENERGY SOLUTION, LTD.Inventors: Min Wook KIM, Won Nyeon KIM, Jung Kwan PYO, Cha Hun KU, Byeong Kyu LEE
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Patent number: 11179862Abstract: Discussed is a notching apparatus for a secondary battery that includes: a lower mechanism comprising a die and a die holder to which the die is fixed, the die engaging an electrode provided with a coating portion and a non-coating portion; a stripper including a first stripper pressing the coating portion and a pair of second strippers pressing and fixing the non-coating portion; an upper mechanism including a punch provided between the pair of second strippers and provided with a cutting blade cutting the non-coating portion disposed between the pair of second strippers and a punch holder allowing the punch to move in a direction of the lower mechanism; and a pressing member pressing the non-coating portion disposed between the pair of second strippers to increase in tension force when the non-coating portion is cut by the punch.Type: GrantFiled: April 1, 2019Date of Patent: November 23, 2021Assignee: LG CHEM, LTD.Inventors: Byeong Kyu Lee, Cha Hun Ku, Jung Kwan Pyo, Jin Gon Kim, Tai Jin Jung, Won Nyeon Kim
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Publication number: 20210179797Abstract: The present invention relates to a complex and a material containing the same for oil-water separation. The preparation process of the complex is simple. The complex shows lipophilicity, superhydrophobicity, and super water-repellency since a zinc oxide particle layer, in which zinc oxide particles are agglomerated in a micro-nano structure, and a super-hydrophobic coating layer having low surface energy are sequentially formed on a surface of a polymer matrix having a cavernous porous structure, and thus the complex has high oil-water separation efficiency and high durability. When a magnetic particle layer exhibiting magnetism is provided between the zinc oxide particle layer and the super-hydrophobic coating layer, the positional control and collection of the complex is easy, and thus the complex can be helpfully used as a material for oil absorption type oil-water separation, which is used in large-scale oil-water separation, such as the removal of oil spilled into the ocean.Type: ApplicationFiled: October 11, 2018Publication date: June 17, 2021Inventors: Byeong-Kyu Lee, Viet Ha Tran Thi
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Patent number: 10978749Abstract: The present disclosure relates to a method for injecting an electrolyte to a pouch secondary battery which includes the steps of: interposing an electrode assembly between a first metal laminate film and a second metal laminate film forming a pouch casing, and sealing the edges of each of the films with an electrolyte inlet left therein, thereby providing a pouch secondary battery; mounting the pouch secondary battery between a first jig and a second jig, which are installed in a jig stand so as to have a controllable interval and form a gap space, with the electrolyte inlet facing up, and injecting an electrolyte through the electrolyte inlet; loading the jig stand to a vacuum chamber; increasing the width of the gap space by moving the first and the second jigs so that the area occupied by the electrolyte may be localized in the lower part of the pouch casing, and then forming vacuum atmosphere; and moving the first and the second jigs while maintaining the vacuum atmosphere so that the width of the gap spaType: GrantFiled: December 11, 2017Date of Patent: April 13, 2021Inventors: Byeong-Kyu Lee, Kyung-Jae Lee, Su-Taek Jung, Min-Cheol Choi, Cha-Hun Ku
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Publication number: 20210086388Abstract: Discussed is a notching apparatus for a secondary battery that includes: a lower mechanism comprising a die and a die holder to which the die is fixed, the die engaging an electrode provided with a coating portion and a non-coating portion; a stripper including a first stripper pressing the coating portion and a pair of second strippers pressing and fixing the non-coating portion; an upper mechanism including a punch provided between the pair of second strippers and provided with a cutting blade cutting the non-coating portion disposed between the pair of second strippers and a punch holder allowing the punch to move in a direction of the lower mechanism; and a pressing member pressing the non-coating portion disposed between the pair of second strippers to increase in tension force when the non-coating portion is cut by the punch.Type: ApplicationFiled: April 1, 2019Publication date: March 25, 2021Applicant: LG CHEM, LTD.Inventors: Byeong Kyu LEE, Cha Hun KU, Jung Kwan PYO, Jin Gon KIM, Tai Jin JUNG, Won Nyeon KIM
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Publication number: 20200212494Abstract: 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: ApplicationFiled: February 18, 2019Publication date: July 2, 2020Applicant: LG Chem, Ltd.Inventors: Won Nyeon KIM, Jung Kwan PYO, Cha Hun KU, Byeong Kyu LEE, Tai Jin JUNG
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Patent number: 10695758Abstract: A photocatalyst according to the present invention has a structure in which the titanium dioxide doped with the transition metals is supported on the support such that a band gap thereof is low and a specific surface area thereof is high, thereby exhibiting an excellent photocatalytic activity even in a visible light region and providing an excellent effect of adsorbing an organic compound and removing the same even under a condition in which light is not emitted.Type: GrantFiled: November 11, 2019Date of Patent: June 30, 2020Assignee: University of Ulsan Foundation for Industry CorporationInventors: Byeong Kyu Lee, Thanhdong Pham
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Pouch-Shaped Battery Case Comprising Crack Prevention Structure and Method of Manufacturing the Same
Publication number: 20200185675Abstract: Disclosed are a pouch-shaped battery case including an upper case and a lower case sealed to one another, the upper case and the lower case made of a laminate sheet comprising a metal layer and a resin layer, at least one of the upper case and the lower case having a concave unit for receiving an electrode assembly, the upper case and the lower case being sealed at all corners thereof located along the outer edge of the concave unit, a middle of a first side surface of each of the upper case and the lower case having a non-sealed portion for gas discharge, the first side surface being adjacent to a second side surface of each of the upper case and the lower case through which an electrode terminal extends, a method of manufacturing the pouch-shaped battery case, and a sealing block for manufacturing the pouch-shaped battery case.Type: ApplicationFiled: July 13, 2018Publication date: June 11, 2020Applicant: LG Chem, Ltd.Inventors: Byeong Kyu Lee, Cha Hun Ku, Tae Kyu Kim -
Patent number: 10668458Abstract: A photocatalyst according to the present invention has a structure in which the titanium dioxide doped with the transition metals is supported on the support such that a band gap thereof is low and a specific surface area thereof is high, thereby exhibiting an excellent photocatalytic activity even in a visible light region and providing an excellent effect of adsorbing an organic compound and removing the same even under a condition in which light is not emitted.Type: GrantFiled: November 20, 2015Date of Patent: June 2, 2020Assignee: University of Ulsan Foundation for Industry CooperationInventors: Byeong-Kyu Lee, Ajit Kumar Sharma
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Publication number: 20200144089Abstract: A unit cell alignment apparatus that includes a base member, on the upper surface of which unit cells constituting an electrode assembly are stacked parallel thereto, a first guide member located at one side of the base member, the first guide member being disposed so as to be perpendicular to the upper surface of the base member, a second guide member located at the base member, the second guide member being disposed so as to be perpendicular to the upper surface of the base member while being at right angles to the first guide member, and an inclination adjustment member configured to adjust the inclination of the base member.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Applicant: LG CHEM, LTD.Inventors: Tai Jin JUNG, Cha Hun KU, Jung Kwan PYO, Byeong Kyu LEE
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Publication number: 20200070135Abstract: A photocatalyst according to the present invention has a structure in which the titanium dioxide doped with the transition metals is supported on the support such that a band gap thereof is low and a specific surface area thereof is high, thereby exhibiting an excellent photocatalytic activity even in a visible light region and providing an excellent effect of adsorbing an organic compound and removing the same even under a condition in which light is not emitted.Type: ApplicationFiled: November 11, 2019Publication date: March 5, 2020Applicant: University of Ulsan Foundation for Industry CooperationInventors: Byeong Kyu LEE, Thanhdong PHAM
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Publication number: 20200067034Abstract: A sealing block for sealing a pouch-shaped secondary battery includes a main body unit for sealing at least a part of an outer edge of a battery case from which an electrode terminal protrudes by applying heat and/or pressure thereto and a wrinkle prevention unit coupled perpendicularly to one surface of the main body unit, the wrinkle prevention unit including a curved structure that corresponds to a rounded corner of an electrode assembly reception unit of the battery case, wherein the wrinkle prevention unit further includes an extension portion for connecting the curved structure of the wrinkle prevention unit to the main body unit. Sealing may be performed when the wrinkle prevention unit is adjacent to the electrode assembly reception unit via the extension portion.Type: ApplicationFiled: November 4, 2019Publication date: February 27, 2020Applicant: LG Chem, Ltd.Inventors: Tae Kyu Kim, Byeong Kyu Lee, Cha Hun Ku
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Publication number: 20190131666Abstract: The present disclosure relates to a method for injecting an electrolyte to a pouch secondary battery which includes the steps of: interposing an electrode assembly between a first metal laminate film and a second metal laminate film forming a pouch casing, and sealing the edges of each of the films with an electrolyte inlet left therein, thereby providing a pouch secondary battery; mounting the pouch secondary battery between a first jig and a second jig, which are installed in a jig stand so as to have a controllable interval and form a gap space, with the electrolyte inlet facing up, and injecting an electrolyte through the electrolyte inlet; loading the jig stand to a vacuum chamber; increasing the width of the gap space by moving the first and the second jigs so that the area occupied by the electrolyte may be localized in the lower part of the pouch casing, and then forming vacuum atmosphere; and moving the first and the second jigs while maintaining the vacuum atmosphere so that the width of the gap spaType: ApplicationFiled: December 11, 2017Publication date: May 2, 2019Applicant: LG CHEM, LTD.Inventors: Byeong-Kyu LEE, Kyung-Jae LEE, Su-Taek JUNG, Min-Cheol CHOI, Cha-Hun KU
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Publication number: 20180345264Abstract: A photocatalyst according to the present invention has a structure in which the titanium dioxide doped with the transition metals is supported on the support such that a band gap thereof is low and a specific surface area thereof is high, thereby exhibiting an excellent photocatalytic activity even in a visible light region and providing an excellent effect of adsorbing an organic compound and removing the same even under a condition in which light is not emitted.Type: ApplicationFiled: November 20, 2015Publication date: December 6, 2018Applicant: University of Ulsan Foundation for Industry CooperationInventor: Byeong-Kyu LEE
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Patent number: 10035135Abstract: The composite of the present invention includes zeolite having a metal hydroxide supported thereon, and thus it can release moisture inside the zeolite effectively. Therefore, the warm-mix asphalt additive including the composite is not only economical but also able to lower with ease the temperatures required for mixing and compacting an asphalt mixture. Also, the asphalt mixture including the above-described warm-mix additive has a benefit of an improved adhesive strength, which leads to an excellent resistance to plastic deformation.Type: GrantFiled: September 24, 2015Date of Patent: July 31, 2018Assignee: University of Ulsan Foundation For Industry CooperationInventors: Byeong-Kyu Lee, Ajit Kumar Sharma, Chi Hyeon Lee
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Publication number: 20160376418Abstract: The composite of the present invention includes zeolite having a metal hydroxide supported thereon, and thus it can release moisture inside the zeolite effectively. Therefore, the warm-mix asphalt additive including the composite is not only economical but also able to lower with ease the temperatures required for mixing and compacting an asphalt mixture. Also, the asphalt mixture including the above-described warm-mix additive has a benefit of an improved adhesive strength, which leads to an excellent resistance to plastic deformation.Type: ApplicationFiled: September 24, 2015Publication date: December 29, 2016Inventors: Byeong-Kyu Lee, Ajit Kumar Sharma, Chi Hyeon Lee