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公开(公告)号：US10559785B2
公开(公告)日：2020-02-11
申请号：US15736475
申请日：2016-09-29
Applicant: LG CHEM, LTD.
Inventor： Cho Long Kim , Yong Su Choi , Sang Hun Kim , Sang Suk Jung , Won Pill Hwang , Yong Kim
Abstract: 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.
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公开(公告)号：US10532423B2
公开(公告)日：2020-01-14
申请号：US15340654
申请日：2016-11-01
Applicant: LG CHEM, LTD.
Inventor： Yong Kim , Yong Su Choi , Sang Hun Kim , Sang Suk Jung , Won Pill Hwang , Cho Long Kim
IPC: B23K20/10 , H01M2/30 , H01M2/20 , B23K26/32 , B23K26/244 , H01M2/10 , B23K101/36 , B23K101/38
Abstract: 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.
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公开(公告)号：US10777840B2
公开(公告)日：2020-09-15
申请号：US15563396
申请日：2016-08-26
Applicant: LG CHEM, LTD.
Inventor： Sang Hun Kim , Yong Su Choi , Sang Suk Jung , Won Pill Hwang , Cho Long Kim , Yong Kim
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US10700324B2
公开(公告)日：2020-06-30
申请号：US15565854
申请日：2016-06-14
Applicant: LG CHEM, LTD.
Inventor： Cho Long Kim , Yong Su Choi , Sang Hun Kim , Sang Suk Jung , Won Pill Hwang , Yong Kim
Abstract: 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.
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公开(公告)号：US20170288181A1
公开(公告)日：2017-10-05
申请号：US15471037
申请日：2017-03-28
Applicant: LG Chem, Ltd.
Inventor： Won Pill Hwang , Yong Su Choi , Sang Hun Kim , Sang Suk Jung , Cho Long Kim , Yong Kim
IPC: H01M2/02 , H01M4/587 , H01M4/525 , H01M10/0525 , H01M10/0565
CPC classification number: H01M2/0292 , H01M2/0212 , H01M2/0275 , H01M2/0277 , H01M2/028 , H01M2/0285 , H01M2/0287 , H01M4/525 , H01M4/587 , H01M10/0525 , H01M10/0565 , H01M2300/0082
Abstract: 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.
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公开(公告)号：US11557810B2
公开(公告)日：2023-01-17
申请号：US16883123
申请日：2020-05-26
Applicant: LG CHEM, LTD.
Inventor： Cho Long Kim , Yong Su Choi , Sang Hun Kim , Sang Suk Jung , Won Pill Hwang , Yong Kim
IPC: H01M50/30 , H01M50/10 , H01M50/116 , H01M50/172 , H01M50/183 , H01M50/543 , H01M10/04
Abstract: 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.
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公开(公告)号：US11189871B2
公开(公告)日：2021-11-30
申请号：US15471037
申请日：2017-03-28
Applicant: LG Chem, Ltd.
Inventor： Won Pill Hwang , Yong Su Choi , Sang Hun Kim , Sang Suk Jung , Cho Long Kim , Yong Kim
IPC: H01M50/124 , H01M50/116 , H01M50/557 , H01M10/0525 , H01M4/525 , H01M4/587 , H01M10/0565
Abstract: 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.
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公开(公告)号：US10770712B2
公开(公告)日：2020-09-08
申请号：US15862029
申请日：2018-01-04
Applicant: LG CHEM, LTD.
Inventor： Sang Hun Kim , Yong Kim , Min Hyeong Kang , Cho Long Kim , Hyung Kyun Yu , Ji Hoon Lee , Yong Su Choi , Soo Ji Hwang
Abstract: 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.
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