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公开(公告)号：US11588170B2
公开(公告)日：2023-02-21
申请号：US17383013
申请日：2021-07-22
申请人： LG Chem, Ltd.
发明人： Sang Hun Kim , Yong Su Choi , Hyung Kyun Yu , Soo Ji Hwang , Na Yoon Kim , Yong Kim
IPC分类号： H01M50/50 , H01M10/04 , H01M50/10 , H01M50/172 , H01M50/183 , H01M50/531
摘要： Disclosed are a secondary battery and a method for manufacturing the same. According to the present invention, since an external protrusion protruding from the outside of an exterior constituting a body of the secondary battery as a component through which a secondary battery according to a related art is electrically connected to external electric equipment is removed, the secondary battery may be reduced in volume under the same capacity.
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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
申请人： LG CHEM, LTD.
发明人： Cho Long Kim , Yong Su Choi , Sang Hun Kim , Sang Suk Jung , Won Pill Hwang , Yong Kim
IPC分类号： H01M50/30 , H01M50/10 , H01M50/116 , H01M50/172 , H01M50/183 , H01M50/543 , H01M10/04
摘要： 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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3.发明授权公开(公告)号：US11545707B2
公开(公告)日：2023-01-03
申请号：US16497532
申请日：2018-07-05
申请人： LG Chem, Ltd.
发明人： Sang Hun Kim , Yong Kim , Yong Su Choi , Hyung Kyun Yu , Soo Ji Hwang , Na Yoon Kim , Min Hyeong Kang
IPC分类号： B32B3/24 , H01M50/124 , B32B7/12 , B32B15/08 , H01M10/0525 , H01M50/116
摘要： Disclosed herein is a pouch-shaped battery case configured to receive an electrode assembly having a separator interposed between positive and negative electrodes, together with an electrolytic solution, the pouch-shaped battery case including an outer coating layer defining an outer surface of the battery case and configured to protect the electrode assembly from an outside of the battery case, the outer coating layer made of a polymer resin, a metal barrier layer located between the outer coating layer and an inner surface of the battery case, the metal barrier layer having high moisture-blocking efficiency and high thermal conductivity, and an inner sealant layer located between the metal barrier layer and an inner surface of the battery case, the inner sealant layer made of a polymer resin that has high thermal fusibility, the metal barrier layer includes a first metal that has high formability and a second metal that has high rigidity.
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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
申请人： LG Chem, Ltd.
发明人： Won Pill Hwang , Yong Su Choi , Sang Hun Kim , Sang Suk Jung , Cho Long Kim , Yong Kim
IPC分类号： H01M50/124 , H01M50/116 , H01M50/557 , H01M10/0525 , H01M4/525 , H01M4/587 , H01M10/0565
摘要： 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：US11031661B2
公开(公告)日：2021-06-08
申请号：US16332598
申请日：2018-05-09
申请人： LG Chem, Ltd.
发明人： Sang Hun Kim , Yong Kim , Yong Su Choi , Hyung Kyun Yu , Soo Ji Hwang , Na Yoon Kim , Min Hyeong Kang
IPC分类号： H01M2/34 , H01M2/06 , H01M2/26 , H01M2/30 , H01M50/578 , H01M50/172 , H01M50/531 , H01M50/543
摘要： A secondary battery is disclosed.
According to the present invention, when an internal pressure exceeding a certain level occurs, current may be interrupted to stop an operation of the secondary battery, thereby preventing the secondary battery from being ignited or exploded by the increase in internal pressure of the secondary battery and improving safety of the secondary battery.-
公开(公告)号：US10998539B2
公开(公告)日：2021-05-04
申请号：US16332582
申请日：2018-05-02
申请人： LG Chem, Ltd.
发明人： Sang Hun Kim , Yong Kim , Yong Su Choi , Hyung Kyun Yu , Soo Ji Hwang , Na Yoon Kim , Min Hyeong Kang
摘要： A secondary battery is disclosed.
According to the present invention, when an internal pressure exceeding a certain level occurs, current may be interrupted to stop an operation of the secondary battery, thereby preventing the secondary battery from being ignited or exploded by the increase in internal pressure of the secondary battery and improving safety of the secondary battery.-
7.发明申请公开(公告)号：US20200295316A1
公开(公告)日：2020-09-17
申请号：US16497532
申请日：2018-07-05
申请人： LG Chem, Ltd.
发明人： Sang Hun Kim , Yong Kim , Yong Su Choi , Hyung Kyun Yu , Soo Ji Hwang , Na Yoon Kim , Min Hyeong Kang
IPC分类号： H01M2/02 , B32B15/08 , B32B7/12 , H01M10/0525
摘要： Disclosed herein is a pouch-shaped battery case configured to receive an electrode assembly having a separator interposed between positive and negative electrodes, together with an electrolytic solution, the pouch-shaped battery case including an outer coating layer defining an outer surface of the battery case and configured to protect the electrode assembly from an outside of the battery case, the outer coating layer made of a polymer resin, a metal barrier layer located between the outer coating layer and an inner surface of the battery case, the metal barrier layer having high moisture-blocking efficiency and high thermal conductivity, and an inner sealant layer located between the metal barrier layer and an inner surface of the battery case, the inner sealant layer made of a polymer resin that has high thermal fusibility, the metal barrier layer includes a first metal that has high formability and a second metal that has high rigidity.
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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
申请人： LG CHEM, LTD.
发明人： Sang Hun Kim , Yong Kim , Min Hyeong Kang , Cho Long Kim , Hyung Kyun Yu , Ji Hoon Lee , Yong Su Choi , Soo Ji Hwang
摘要： 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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公开(公告)号：US20200168855A1
公开(公告)日：2020-05-28
申请号：US16604359
申请日：2018-07-05
申请人： LG Chem, Ltd.
发明人： Soo Ji Hwang , Yong Su Choi , Sang Hun Kim , Hyung Kyun Yu , Na Yoon Kim , Min Hyeong Kang , Yong Kim
摘要： A secondary battery configured to have a structure in which an electrode assembly is received in a battery case together with an electrolytic material, wherein the battery case is provided therein with a space for receiving the electrode assembly and wherein the battery case is made of a thermoplastic resin, which can be injection-molded. An injection mold may be formed such that the size of the mold corresponds to the thickness of the electrode, thereby solving a problem in which the formability of a conventional laminate sheet including a metal layer is low. In addition, a process of forming the laminate sheet and a process of sealing the battery case using a pressing member, which are essentially required in order to use the laminate sheet, may be omitted, whereby a manufacturing process is simplified and thus productivity is improved.
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公开(公告)号：US20190020052A1
公开(公告)日：2019-01-17
申请号：US16066792
申请日：2017-08-29
申请人： LG Chem, Ltd.
发明人： Sang Hun Kim , Yong Su Choi , Hyung Kyun Yu , Soo Ji Hwang , Na Yoon Kim , Yong Kim
摘要： Disclosed are a secondary battery and a method for manufacturing the same. According to the present invention, since an external protrusion protruding from the outside of an exterior constituting a body of the secondary battery as a component through which a secondary battery according to a related art is electrically connected to external electric equipment is removed, the secondary battery may be reduced in volume under the same capacity.
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