Patents by Inventor Won-Nyeon KIM
Won-Nyeon KIM 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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Patent number: 11978861Abstract: 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: GrantFiled: February 18, 2019Date of Patent: May 7, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Won Nyeon Kim, Jung Kwan Pyo, Cha Hun Ku, Byeong Kyu Lee, Tai Jin Jung
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Publication number: 20240039027Abstract: A method of manufacturing a unit cell having a negative electrode, a separator, and a positive electrode are stacked and placed between guide rollers. One of the positive electrode and the negative electrode. The separator is coated with a binder, and the separator is dipped in a solvent to soften a cured binder before the separator is put between the guide rollers. An apparatus for manufacturing a unit cell includes a reservoir in which at least two or more transfer rollers that rotate while the separator passes therethrough are mounted, and a solvent is stored at a predetermined level; and a chamber into which the separator passing through a reservoir is put together with the positive electrode and the negative electrode. Guide rollers are disposed so that the negative electrode and the positive electrode move to both surfaces of the separator, respectively.Type: ApplicationFiled: July 10, 2020Publication date: February 1, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Byeong Kyu LEE, Su Taek JUNG, Soon Kwan KWON, Hyun Kyung SHIN, Won Nyeon KIM, Seong Won CHOI
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Publication number: 20230092071Abstract: A secondary battery electrode is provided in the present disclosure. The secondary battery electrode includes an electrode current collector including first and second regions; an active material layer positioned on the first region of the electrode current collector; and an insulating layer positioned on the second region of the electrode current collector, wherein the insulating layer includes a first line portion and a second line portion.Type: ApplicationFiled: February 2, 2021Publication date: March 23, 2023Applicant: LG Energy Solution, Ltd.Inventors: Juhyeon Cho, Won Nyeon Kim, Su Taek Jung, Soon Kwan Kwon, Byeong Kyu Lee
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Publication number: 20230043253Abstract: A pressing roll device, in which a unit cell passes between an upper roll and a lower roll, includes: the lower roll; the upper roll; a lower mount on which the lower roll is mounted and which is fixed in movement; an upper mount on which the upper roll is mounted and which is restricted by a bracket so as to ascend and descend by the bracket; and a stopper disposed between the lower mount and the upper mount so that the lower roll and the upper roll are spaced apart from each other.Type: ApplicationFiled: July 10, 2020Publication date: February 9, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Byeong Kyu LEE, Soon Kwan KWON, Won Nyeon KIM, Su Taek JUNG
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Publication number: 20220407198Abstract: The present invention relates to an electrolyte injection device including a base portion on which a preliminary battery cell is disposed on an upper surface thereof, a movable pressing jig attached to the base portion, and an electrolyte injection pipe configured to inject an electrolyte into the preliminary battery cell, wherein the movable pressing jig includes a portion configured to press the preliminary battery cell in a direction perpendicular to an upper surface and a lower surface of an electrode assembly receiving portion of the preliminary battery cell, and thus it is possible to prevent a phenomenon in which a separator is folded or peeled off even when an electrolyte injection rate is high.Type: ApplicationFiled: November 11, 2020Publication date: December 22, 2022Applicant: LG Energy Solution, Ltd.Inventors: Won Nyeon Kim, Soon Kwan Kwon, Byeong Kyu Lee, Su Taek Jung
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Publication number: 20220393225Abstract: A method for manufacturing an electrode assembly according to the present invention comprises: a step (a) of transferring an electrode, in which a plurality of electrodes and a plurality of separators are alternately stacked, to a first position; a step (b) of forming an adhesive layer on both side portions of the separators, which are provided in the electrode assembly disposed at the first position, in a full width direction; a step of (c) of allowing the pair of pressing blocks provided at a second position to move in a direction corresponding to each other, wherein an interval between the pair of pressing blocks is less than a length of each of the separators in a full width direction and is greater than a length of each of the electrodes in a full width direction; a step (d) of allowing both the side portions of the separator to be bent upward while being in contact with the pressing blocks when the electrode assembly disposed at the first position descends to be inserted between the pair of pressing bloType: ApplicationFiled: October 12, 2020Publication date: December 8, 2022Applicant: LG Energy Solution, Ltd.Inventors: Won Nyeon Kim, Hyun Kyung Shin, Su Taek Jung, Soon Kwan Kwon, Byeong Kyu Lee
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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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Patent number: 11251469Abstract: A lamination apparatus for a secondary battery comprises a roller part comprising a separator supply roller that supplies a separator sheet and an electrode supply roller that supplies an electrode sheet, a cutting part that cuts the electrode sheet supplied by the electrode supply roller to manufacture a plurality of electrode plates, a first transfer part that transfers the electrode plates cut by the cutting part at a same interval, an inspection part that inspects whether the electrode plates transferred by the first transfer part are defective, a second transfer part that transfers a normal electrode plate, which is determined as the normal electrode plate by the inspection part, among the electrode plates, and a lamination part that thermally bonds the normal electrode plate transferred by the second transfer part to the separator sheet supplied by the separator supply roller.Type: GrantFiled: March 27, 2018Date of Patent: February 15, 2022Assignee: LG ENERGY SOLUTION, LTD.Inventors: Won Nyeon Kim, Jung Kwan Pyo, Cha Hun Ku, Tae Kyu 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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Patent number: 10992010Abstract: The present disclosure provides a method for manufacturing a unit cell including the steps of: preparing an electrode and a separator individually, wherein the separator includes a porous polymer substrate and a porous coating layer disposed on at least one surface of the porous polymer substrate and including a mixture of inorganic particles with a binder polymer; applying a lamination solvent to the surface of the separator to be bound with the electrode; and carrying out lamination of the electrode with the separator before the lamination solvent is dried. The method according to the present disclosure can solve the problem of shrinking of a separator occurring in the conventional lamination process.Type: GrantFiled: November 9, 2017Date of Patent: April 27, 2021Assignee: LG CHEM, LTD.Inventors: Tae-Kyu Kim, Cha-Hun Ku, Won-Nyeon Kim
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Patent number: 10971716Abstract: Provided are an electrode unit and a method for manufacturing the electrode unit. According to the present invention, after the electrode unit is manufactured by using heat, bending of the electrode unit occurring by cooling the electrode unit may be eliminated or minimized. To achieve the aforementioned object, in the method for manufacturing the electrode unit according to an embodiment of the present invention, stress applied to the inside of each of the positive electrode collector and the negative electrode collector is calculated to reflect the calculated results, thereby selecting the positive electrode collector and the negative electrode collector.Type: GrantFiled: August 8, 2017Date of Patent: April 6, 2021Inventors: Jung Kwan Pyo, Sung Jong Kim, Cha Hun Ku, Tae Kyu Kim, Won Nyeon Kim, Gyung Soo Kang
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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: 20200235433Abstract: A lamination apparatus for a secondary battery comprises a roller part comprising a separator supply roller that supplies a separator sheet and an electrode supply roller that supplies an electrode sheet, a cutting part that cuts the electrode sheet supplied by the electrode supply roller to manufacture a plurality of electrode plates, a first transfer part that transfers the electrode plates cut by the cutting part at a same interval, an inspection part that inspects whether the electrode plates transferred by the first transfer part are defective, a second transfer part that transfers a normal electrode plate, which is determined as the normal electrode plate by the inspection part, among the electrode plates, and a lamination part that thermally bonds the normal electrode plate transferred by the second transfer part to the separator sheet supplied by the separator supply roller.Type: ApplicationFiled: March 27, 2018Publication date: July 23, 2020Inventors: Won Nyeon Kim, Jung Kwan Pyo, Cha Hun Ku, Tae Kyu 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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Publication number: 20190386289Abstract: Provided are an electrode unit and a method for manufacturing the electrode unit. According to the present invention, after the electrode unit is manufactured by using heat, bending of the electrode unit occurring by cooling the electrode unit may be eliminated or minimized. To achieve the aforementioned object, in the method for manufacturing the electrode unit according to an embodiment of the present invention, stress applied to the inside of each of the positive electrode collector and the negative electrode collector is calculated to reflect the calculated results, thereby selecting the positive electrode collector and the negative electrode collector.Type: ApplicationFiled: August 8, 2017Publication date: December 19, 2019Applicant: LG Chem, Ltd.Inventors: Jung Kwan Pyo, Sung Jong Kim, Cha Hun Ku, Tae Kyu Kim, Won Nyeon Kim, Gyung Soo Kang
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Publication number: 20190221811Abstract: The present disclosure provides a method for manufacturing a unit cell including the steps of: preparing an electrode and a separator individually, wherein the separator includes a porous polymer substrate and a porous coating layer disposed on at least one surface of the porous polymer substrate and including a mixture of inorganic particles with a binder polymer; applying a lamination solvent to the surface of the separator to be bound with the electrode; and carrying out lamination of the electrode with the separator before the lamination solvent is dried. The method according to the present disclosure can solve the problem of shrinking of a separator occurring in the conventional lamination process.Type: ApplicationFiled: November 9, 2017Publication date: July 18, 2019Applicant: LG CHEM, LTD.Inventors: Tae-Kyu KIM, Cha-Hun KU, Won-Nyeon KIM