Patents by Inventor Cho Long KIM
Cho Long 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: 11557810Abstract: The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.Type: GrantFiled: May 26, 2020Date of Patent: January 17, 2023Assignee: LG ENERGY SOLUTION, LTD.Inventors: Cho Long Kim, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Won Pill Hwang, Yong Kim
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Patent number: 11189871Abstract: Provided are a lithium secondary battery, which includes an electrode assembly, a battery case accommodating the electrode assembly, a surface layer comprising an engineering plastic located on the outer side of the battery case, and lead terminals connected with the electrode assembly and drawn out of the battery case, and a method of fabricating the same.Type: GrantFiled: March 28, 2017Date of Patent: November 30, 2021Inventors: Won Pill Hwang, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Cho Long Kim, Yong Kim
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Patent number: 10777840Abstract: The present invention relates to an apparatus for sealing a secondary battery. The apparatus comprises: a sealing member thermally fusing and sealing a sealing surface of a pouch in which an electrode assembly is accommodated; and a cooling member cooling the sealing surface.Type: GrantFiled: August 26, 2016Date of Patent: September 15, 2020Assignee: LG Chem, Ltd.Inventors: Sang Hun Kim, Yong Su Choi, Sang Suk Jung, Won Pill Hwang, Cho Long Kim, Yong Kim
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Publication number: 20200287186Abstract: The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.Type: ApplicationFiled: May 26, 2020Publication date: September 10, 2020Applicant: LG CHEM, LTD.Inventors: Cho Long KIM, Yong Su CHOI, Sang Hun KIM, Sang Suk JUNG, Won Pill HWANG, Yong KIM
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Patent number: 10770712Abstract: A battery cell includes an electrode assembly and a battery case. The electrode assembly includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The battery case includes an upper case and a lower case, at least one of the upper case and the lower case being provided with a receiving part, in which the electrode assembly is mounted. One end of each of electrode tabs extending from electrode plates of the electrode assembly is coupled to a corresponding end of an electrode lead, which protrudes outward from the battery case. The electrode lead is provided with at least one notch part configured to rupture in response to expansion deformation of the battery case when the pressure in the battery cell increases to achieve the electrical cutoff of the battery.Type: GrantFiled: January 4, 2018Date of Patent: September 8, 2020Assignee: LG Chem, Ltd.Inventors: Sang Hun Kim, Yong Kim, Min Hyeong Kang, Cho Long Kim, Hyung Kyun Yu, Ji Hoon Lee, Yong Su Choi, Soo Ji Hwang
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Patent number: 10727453Abstract: The present disclosure relates to a method for sealing a pouch casing of a pouch-type secondary battery, which includes the steps of: a receiving step in which an electrode assembly is received in an inner space formed between an upper pouch and a lower pouch; and a sealing step in which a first pressure is applied to an outer circumferential sealing portion, where the upper pouch and the lower pouch are sealed, in the longitudinal direction, and then the pressure is relieved, wherein the sealing step is carried out by applying external force to the upper pouch in the upward direction and to the lower pouch in the downward direction, or by applying a second pressure working in perpendicular to the first pressure to the sealing portion from the inner part of the pouch casing in a direction toward the outside.Type: GrantFiled: September 28, 2017Date of Patent: July 28, 2020Assignee: LG Chem, Ltd.Inventors: Yong-Su Choi, Sang-Hun Kim, Min-Hyeong Kang, Yong Kim, Cho-Long Kim, Hyung-Kyun Yu, Ji-Hoon Lee, Soo-Ji Hwang
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Patent number: 10700324Abstract: The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.Type: GrantFiled: June 14, 2016Date of Patent: June 30, 2020Assignee: LG CHEM, LTD.Inventors: Cho Long Kim, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Won Pill Hwang, Yong Kim
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Patent number: 10559785Abstract: The present invention relates to a sealing apparatus sealing a sealing part of a battery case at which an electrode lead coupled to an electrode assembly is disposed. The sealing apparatus comprises: a thermal fusion member applying heat and a pressure to the sealing part of the battery case, at which the electrode lead is disposed, to seal the sealing part; and a temperature rising prevention member supported on a front end of the electrode lead to cool the sealing part through the electrode lead, thereby preventing the sealing part from increasing in temperature.Type: GrantFiled: September 29, 2016Date of Patent: February 11, 2020Assignee: LG Chem, Ltd.Inventors: Cho Long Kim, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Won Pill Hwang, Yong Kim
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Patent number: 10532423Abstract: Provided is a battery pack. The battery pack includes a plurality of battery cells, each of which is provided with an electrode tab, an electrode lead including first and second lead parts respectively connected to the electrode tabs of the adjacent battery cells and a connection part connecting the first and second lead parts to each other, and a bus bar to which the first and second lead parts are coupled and connecting the plurality of battery cells to each other in series or parallel.Type: GrantFiled: November 1, 2016Date of Patent: January 14, 2020Assignee: LG CHEM, LTD.Inventors: Yong Kim, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Won Pill Hwang, Cho Long Kim
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Publication number: 20190207171Abstract: The present disclosure relates to a method for sealing a pouch casing of a pouch-type secondary battery, which includes the steps of: a receiving step in which an electrode assembly is received in an inner space formed between an upper pouch and a lower pouch; and a sealing step in which a first pressure is applied to an outer circumferential sealing portion, where the upper pouch and the lower pouch are sealed, in the longitudinal direction, and then the pressure is relieved, wherein the sealing step is carried out by applying external force to the upper pouch in the upward direction and to the lower pouch in the downward direction, or by applying a second pressure working in perpendicular to the first pressure to the sealing portion from the inner part of the pouch casing in a direction toward the outside.Type: ApplicationFiled: September 28, 2017Publication date: July 4, 2019Applicant: LG CHEM, LTD.Inventors: Yong-Su CHOI, Sang-Hun KIM, Min-Hyeong KANG, Yong KIM, Cho-Long KIM, Hyung-Kyun YU, Ji-Hoon LEE, Soo-Ji HWANG
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Publication number: 20180198109Abstract: A battery cell includes an electrode assembly and a battery case. The electrode assembly includes a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode. The battery case includes an upper case and a lower case, at least one of the upper case and the lower case being provided with a receiving part, in which the electrode assembly is mounted. One end of each of electrode tabs extending from electrode plates of the electrode assembly is coupled to a corresponding end of an electrode lead, which protrudes outward from the battery case. The electrode lead is provided with at least one notch part configured to rupture in response to expansion deformation of the battery case when the pressure in the battery cell increases to achieve the electrical cutoff of the battery.Type: ApplicationFiled: January 4, 2018Publication date: July 12, 2018Applicant: LG CHEM, LTD.Inventors: Sang Hun KIM, Yong KIM, Min Hyeong KANG, Cho Long KIM, Hyung Kyun YU, Ji Hoon LEE, Yong Su CHOI, Soo Ji HWANG
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Publication number: 20180190951Abstract: The present invention relates to a sealing apparatus sealing a sealing part of a battery case at which an electrode lead coupled to an electrode assembly is disposed. The sealing apparatus comprises: a thermal fusion member applying heat and a pressure to the sealing part of the battery case, at which the electrode lead is disposed, to seal the sealing part; and a temperature rising prevention member supported on a front end of the electrode lead to cool the sealing part through the electrode lead, thereby preventing the sealing part from increasing in temperature.Type: ApplicationFiled: September 29, 2016Publication date: July 5, 2018Applicant: LG CHEM, LTD.Inventors: Cho Long KIM, Yong Su CHOI, Sang Hun KIM, Sang Suk JUNG, Won Pill HWANG, Yong KIM
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Publication number: 20180114964Abstract: The present invention relates to a battery cell. The battery cell comprises: an electrode assembly provided with an electrode tab; a case which accommodates the electrode assembly and of which at least a portion of an edge is sealed to provide a sealing surface; an electrode lead coupled to the electrode tab and led out of the case; a lead film disposed on each of top and bottom surfaces of the lead electrode disposed on the sealing surface of the case and coupled together with the sealing surface; and a main gas discharge tube disposed in the case and having one end buried in the lead film.Type: ApplicationFiled: June 14, 2016Publication date: April 26, 2018Applicant: LG CHEM, LTD.Inventors: Cho Long KIM, Yong Su CHOI, Sang Hun KIM, Sang Suk JUNG, Won Pill HWANG, Yong KIM
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Publication number: 20180090780Abstract: The present invention relates to an apparatus for sealing a secondary battery. The apparatus comprises: a sealing member thermally fusing and sealing a sealing surface of a pouch in which an electrode assembly is accommodated; and a cooling member cooling the sealing surface.Type: ApplicationFiled: August 26, 2016Publication date: March 29, 2018Applicant: LG CHEM, LTD.Inventors: Sang Hun KIM, Yong Su CHOI, Sang Suk JUNG, Won Pill HWANG, Cho Long KIM, Yong KIM
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Publication number: 20170288181Abstract: Provided are a lithium secondary battery, which includes an electrode assembly, a battery case accommodating the electrode assembly, a surface layer comprising an engineering plastic located on the outer side of the battery case, and lead terminals connected with the electrode assembly and drawn out of the battery case, and a method of fabricating the same.Type: ApplicationFiled: March 28, 2017Publication date: October 5, 2017Applicant: LG Chem, Ltd.Inventors: Won Pill Hwang, Yong Su Choi, Sang Hun Kim, Sang Suk Jung, Cho Long Kim, Yong Kim
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Publication number: 20170170445Abstract: Provided is a battery pack. The battery pack includes a plurality of battery cells, each of which is provided with an electrode tab, an electrode lead including first and second lead parts respectively connected to the electrode tabs of the adjacent battery cells and a connection part connecting the first and second lead parts to each other, and a bus bar to which the first and second lead parts are coupled and connecting the plurality of battery cells to each other in series or parallel.Type: ApplicationFiled: November 1, 2016Publication date: June 15, 2017Applicant: LG CHEM, LTD.Inventors: Yong KIM, Yong Su CHOI, Sang Hun KIM, Sang Suk JUNG, Won Pill HWANG, Cho Long KIM