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公开(公告)号：EP3739648A1
公开(公告)日：2020-11-18
申请号：EP19837484.5
申请日：2019-07-11
申请人： LG CHEM, LTD.
发明人： CHOI, Yong Su , KIM, Sang Hun , YU, Hyung Kyun
摘要： Disclosed herein is a method of manufacturing a pouch-type secondary battery comprising the steps of: (a) preparing an electrode assembly having a separator interposed between a positive electrode and a negative electrode; (b) forming a receiving part of the electrode assembly in a case made of a laminate sheet; and (c) manufacturing a battery cell by receiving the electrode assembly in the receiving part and thermally fusing the case, wherein the laminate sheet comprises an outer resin layer, a metal barrier layer and an inner resin layer, the inner resin layer comprising polypropylene or polyethylene, and a crosslinking agent.
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公开(公告)号：EP3719895A1
公开(公告)日：2020-10-07
申请号：EP19754158.4
申请日：2019-02-13
发明人： HAN, Hyung Seok , YU, Hyung Kyun , MOON, Jae Won , KIM, Hee Tak , KIM, Yun Jung
IPC分类号： H01M4/66 , H01M4/134 , H01M10/052
摘要： A negative electrode current collector for a lithium metal battery, including copper and having a sum of S(110) and S(100) of 50% or more, wherein the S(110) is a ratio of a region occupied by a (110) surface of copper based on an entire region occupied by copper at a surface of the negative electrode current collector, and the S(100) is a ratio of a region occupied by a (100) surface of copper based on an entire region occupied by copper at a surface of the negative electrode current collector.
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公开(公告)号：EP3579294A1
公开(公告)日：2019-12-11
申请号：EP18857724.1
申请日：2018-07-02
申请人： LG Chem, Ltd.
发明人： HAN, Hyung Seok , YU, Hyung Kyun , PAENG, Ki Hoon , MOON, Jae Won
IPC分类号： H01M2/02 , H01M10/647 , H01M10/613 , H01M10/655
摘要： Disclosed herein is a pouch-shaped battery case configured to receive an electrode assembly configured to have a structure in which a positive electrode and a negative electrode are stacked in the state in which a separator is interposed between the positive electrode and the negative electrode, the pouch-shaped battery case including an outer coating layer, a metal barrier layer, and an inner adhesive layer, wherein the metal barrier layer includes a plurality of metal layers and a heat dissipation layer interposed between the metal layers.
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公开(公告)号：EP3651235A1
公开(公告)日：2020-05-13
申请号：EP19800490.5
申请日：2019-01-23
申请人： LG CHEM, LTD.
发明人： KIM, Na Yoon , CHOI, Yong Su , KIM, Sang Hun , YU, Hyung Kyun , HWANG, Soo Ji
摘要： To solve the above problem, a venting device inserted into a sealing part of a pouch of a secondary battery according to the present invention includes: a housing inserted between both surfaces of the sealing part and sealed together with the sealing part; a sheet which made of a metal and formed in the housing and through which a passage allowing the inside and outside of the pouch to communicate with each other passes; and a ball contacting or spaced apart from the sheet at an outlet-side of the passage to open and close the passage, wherein, in the sheet, an edge of an inner circumference of a surface of the outlet-side of the passage is chamfered or filleted so as to face the ball, and the sheet includes: a surface treatment layer formed on the chamfered or filleted one surface; and a polymer layer made of a polymer and fused to the surface treatment layer.
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公开(公告)号：EP3627581A1
公开(公告)日：2020-03-25
申请号：EP18882158.1
申请日：2018-11-06
申请人： LG Chem, Ltd.
发明人： CHOI, Yong Su , KIM, Sang Hun , KANG, Min Hyeong , YU, Hyung Kyun , HWANG, Soo Ji , KIM, Na Yoon , KIM, Yong
摘要： To solve the above problem, a pouch type secondary battery according to an embodiment of the present invention includes: an electrode assembly in which an electrode including a positive electrode and a negative electrode and a separator are alternately laminated; a battery case accommodating the electrode assembly; an electrode tab connected to the electrode and protruding from one side of the electrode assembly; a first electrode lead having one end connected to the electrode tab; a second electrode lead having one end connected to the other end of the first electrode lead and the other end protruding to an outside of the battery case; a connection part connecting the first and second electrode leads to each other; an insulation part fused to surround a portion of each of the first and second electrode leads and bond the first and second electrode leads to the battery case; and a fusion prevention part disposed at a specific position on one surface of the first electrode lead to prevent the first electrode lead from being fused to the insulation part
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公开(公告)号：EP3490035A1
公开(公告)日：2019-05-29
申请号：EP18797573.5
申请日：2018-05-02
申请人： LG Chem, Ltd.
发明人： KIM, Sang Hun , KIM, Yong , CHOI, Yong Su , YU, Hyung Kyun , HWANG, Soo Ji , KIM, Na Yoon , KANG, Min Hyeong
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.发明公开POUCH CASE FOR SECONDARY BATTERY AND POUCH TYPE SECONDARY BATTERY COMPRISING SAME 审中-公开用于二次电池的袋式包装和包含该袋的袋式二次电池
公开(公告)号：EP3279967A1
公开(公告)日：2018-02-07
申请号：EP16773443.3
申请日：2016-03-30
申请人： LG Chem, Ltd.
CPC分类号： H01M2/029 , B32B1/02 , B32B27/08 , B32B27/18 , B32B27/32 , B32B2250/03 , B32B2250/24 , B32B2250/242 , B32B2323/00 , B32B2439/62 , B32B2457/10 , H01M2/0262 , H01M2/0275 , H01M2/0277 , H01M2/0295 , H01M10/0525
摘要： The present disclosure relates to a pouch case for a secondary battery, and a secondary battery comprising the same, and in particular, to a pouch case for a secondary battery fabricated by laminating an inner resin layer, a middle resin layer and an outer resin layer, wherein the inner resin layer comprises a polyolefin-based resin and a thermosetting moisture absorber, and a secondary battery comprising the same.
摘要翻译： 本发明涉及一种用于二次电池的袋式外壳和包括该外壳的二次电池，并且具体地，涉及一种用于二次电池的袋式外壳，该外壳通过层压内部树脂层，中间树脂层和外部树脂层 其中所述内树脂层包含聚烯烃基树脂和热固性吸湿剂，以及包含所述内树脂层的二次电池。
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8.发明公开
公开(公告)号：EP3767708A1
公开(公告)日：2021-01-20
申请号：EP19874527.5
申请日：2019-10-01
申请人： LG CHEM, LTD.
发明人： MOON, Jae Won , HAN, Hyung Seok , YU, Hyung Kyun , PAENG, Ki Hoon
摘要： The present invention relates to an ultrathin foil transferring and processing process for reducing curling and preventing folding of an ultrathin foil which may occur in the ultrathin foil transferring and processing process, and comprises: a step of coating or mounting an electrostatic-inducing material on both ends of a roll to form a charging part; a charging step of rubbing an ultrathin foil and the roll during the transferring and rolling of the ultrathin foil, to charge both ends of the ultrathin foil and the roll with positive or negative charges; and an electrostatic force applying step in which an electrostatic force is applied to both ends of the ultrathin foil simultaneously with or after the charging step and thus the curling of the ultrathin foil is reduced.
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公开(公告)号：EP3595030A1
公开(公告)日：2020-01-15
申请号：EP18899839.7
申请日：2018-11-16
申请人： LG CHEM, LTD.
发明人： HWANG, Soo Ji , KIM, Sang Hun , YU, Hyung Kyun , CHOI, Yong Su , KIM, Na Yoon , KANG, Min Hyeong , KIM, Yong
摘要： A method for a pouch film according to an embodiment of the present invention includes: a step of applying an adhesive on one surface of a first polymer layer; a step of depositing metal particles on the adhesive; a step of applying heat and a pressure to the deposited metal particles to sinter the metal particles and thereby forming a gas barrier layer; and a step of laminating a second polymer layer on one surface of the gas barrier layer.
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公开(公告)号：EP3490036A1
公开(公告)日：2019-05-29
申请号：EP18806077.6
申请日：2018-05-09
申请人： LG Chem, Ltd.
发明人： KIM, Sang Hun , KIM, Yong , CHOI, Yong Su , YU, Hyung Kyun , HWANG, Soo Ji , KIM, Na Yoon , KANG, Min Hyeong
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.
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