Patents by Inventor Min-Cheol CHOI
Min-Cheol CHOI 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: 11951508Abstract: The present technology relates to an electrode slurry-discharging shim, and a coating die comprising same, the present technology allowing superbly even coating to be assured even when the electrode slurry coating is at a high load level. In one example, the present technology provides a coating shim for electrode slurry discharge according to the present invention having a step portion configured to be formed at an end of an electrode slurry discharge flow path and to increase a width of the discharge flow path, and the step portion is formed at opposite sides in a width direction of the electrode slurry discharge flow path.Type: GrantFiled: December 18, 2020Date of Patent: April 9, 2024Assignee: LG Energy Solution, Ltd.Inventors: Jong Hwan Choi, In Seong Kim, Min Cheol Choi
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Publication number: 20230343984Abstract: An apparatus for manufacturing a secondary battery is provided. The apparatus comprises a separation sheet supply device configured to supply two separation sheets configured to be disposed vertically. An electrode supply device is configured to supply electrodes to be disposed between the two separation sheets and on a top surface of one of the separation sheets. The one of the separation sheets is disposed at an upper side. A lamination device is configured to bond the two separation sheets and the electrodes to each other. An ultrasonic cutting device is configured to bond surfaces of the two separation sheets to each other and simultaneously cut a bonding surface of the two separation sheets.Type: ApplicationFiled: June 10, 2021Publication date: October 26, 2023Applicant: LG Energy Solution, Ltd.Inventors: Sang Ho Bae, Joo Young Chung, Tae Jong Kim, Sang Woo Lee, Su Taek Jung, Won Pill Hwang, Min Cheol Choi, Jin Gon Kim, Yong Jun Lee
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Publication number: 20230207855Abstract: A method for manufacturing a secondary battery includes: an accommodating process of accommodating an electrode assembly in a battery case so that an electrode lead connected to the electrode assembly protrudes to both sides of the outside of the battery case; a sealing process of sealing an outer circumferential surface of the battery case after the accommodating process; a coupling process of coupling a coupling clip to the electrode lead after the sealing process; and a transfer process of transferring the cell to a position for a next process after a gripper grips the coupling clip after the coupling process.Type: ApplicationFiled: May 17, 2021Publication date: June 29, 2023Applicant: LG Energy Solution, Ltd.Inventors: Won Pill Hwang, Sang Woo Lee, Su Taek Jung, Sang Ho Bae, Min Cheol Choi, Jin Gon Kim, Yong Jun Lee
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Publication number: 20230133623Abstract: A method for repairing a secondary battery according to an embodiment of the present invention for solving the above problems includes: a step, in which cracks are formed in an outer surface of a battery case of the pouch-type secondary battery; a step of locally applying a metal solution to the cracks; and a step of drying the metal solution to form a coating part.Type: ApplicationFiled: April 26, 2021Publication date: May 4, 2023Applicant: LG Energy Solution, Ltd.Inventors: Won Pill Hwang, Sang Woo Lee, Su Taek Jung, Sang Ho Bae, Min Cheol Choi, Jin Gon Kim, Yong Jun Lee
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Publication number: 20220331832Abstract: The present technology relates to an electrode slurry-discharging shim, and a coating die comprising same, the present technology allowing superbly even coating to be assured even when the electrode slurry coating is at a high load level. In one example, the present technology provides a coating shim for electrode slurry discharge according to the present invention having a step portion configured to be formed at an end of an electrode slurry discharge flow path and to increase a width of the discharge flow path, and the step portion is formed at opposite sides in a width direction of the electrode slurry discharge flow path.Type: ApplicationFiled: December 18, 2020Publication date: October 20, 2022Applicant: LG Energy Solution, Ltd.Inventors: Jong Hwan CHOI, In Seong KIM, Min Cheol CHOI
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Patent number: 11038242Abstract: The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.Type: GrantFiled: November 8, 2019Date of Patent: June 15, 2021Inventors: Sang Kyun Lee, Cha Hun Ku, Sang Hun Kim, Tae Kyu Kim, Min Cheol Choi
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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: 20200075909Abstract: The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.Type: ApplicationFiled: November 8, 2019Publication date: March 5, 2020Applicant: LG Chem, Ltd.Inventors: Sang Kyun Lee, Cha Hun Ku, Sang Hun Kim, Tae Kyu Kim, Min Cheol Choi
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Patent number: 10505170Abstract: The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.Type: GrantFiled: July 5, 2016Date of Patent: December 10, 2019Assignee: LG Chem, Ltd.Inventors: Sang Kyun Lee, Cha Hun Ku, Sang Hun Kim, Tae Kyu Kim, Min Cheol Choi
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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: 20180159104Abstract: The present invention relates to an electrode assembly. The electrode assembly comprises: a first separator sheet; and first and second electrode sheets respectively adhering to both sides of the first separator sheet, wherein both the surfaces of the first separator sheet have adhesion different from each other, the first electrode sheet adheres to a first surface, which has relatively high adhesion, of both the surfaces, and the second electrode sheet adheres to a second surface, which has relatively low adhesion, of both the surfaces.Type: ApplicationFiled: July 5, 2016Publication date: June 7, 2018Applicant: LG Chem, Ltd.Inventors: Sang Kyun Lee, Cha Hun Ku, Sang Hun Kim, Tae Kyu Kim, Min Cheol Choi
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Publication number: 20100059553Abstract: A tube-type container having a check function is filled with liquid contents irrespective of the magnitude of viscosity, prevent air flowing inside the container when the liquid contents are used. The container includes a body, an extension tube, a discharge cap, a cover, wings, a fixing member, an operating member, and a spring. The wings are inwardly protrudently formed on the inner wall of the discharge cap and regularly spaced apart from each other, a space formed between the wings. The fixing member is fitted into the wings. The operating member is configured in such way that its upper end is inserted into the fixing member and its lower end forms a closing plate for closing the passage. The spring is placed between the operating member and the fixing member for allowing the operating member to elastically tightly close the passage.Type: ApplicationFiled: August 31, 2009Publication date: March 11, 2010Inventor: Min-Cheol CHOI