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1.发明公开
公开(公告)号：EP4131614A1
公开(公告)日：2023-02-08
申请号：EP21837012.0
申请日：2021-07-07
发明人： LIM, Hun Hee , KIM, Sang Hun , KANG, Min Hyeong , YU, Hyung Kyun
IPC分类号： H01M50/30 , H01M50/578 , H01M50/124 , H01M50/116 , H01M50/183 , H01M50/543
摘要： The present invention relates to a secondary battery including a gas discharge portion configured to discharge only gas, whereby safety of the secondary battery is improved while performance and lifespan of the secondary battery are improved and a secondary battery manufacturing method, and more particularly to a secondary battery including an electrode assembly and a case including a receiving portion configured to receive the electrode assembly, a sealed portion formed as the result of hermetically sealing the periphery of the receiving portion, and a gas discharge portion disposed in the sealed portion, the gas discharge portion having one end disposed in contact with the receiving portion and the other end disposed in contact with the outside, the gas discharge portion configured to selectively discharge only gas.
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公开(公告)号：EP4092817A1
公开(公告)日：2022-11-23
申请号：EP21784115.4
申请日：2021-03-17
发明人： KIM, Sang Hun , KIM, Hyun Tae , CHOI, Yong Su , YU, Hyung Kyun , KANG, Min Hyeong , BYEN, Il Gyu , JEONG, Seong Heon , CHO, Chung Ki
IPC分类号： H01M50/183 , H01M50/172 , H01M50/543 , H01M50/531 , H01M50/572 , H01M50/116 , H01M50/557
摘要： An electrode lead according to an embodiment of the present invention for achieving the above object includes: a first electrode lead having one end connected to an electrode tab protruding from one side of an electrode assembly; a second electrode lead having one end connected to the other end of the first electrode lead and the other end protruding to the outside of a battery case accommodating the electrode assembly; and a connection part configured to connect the first electrode lead to the second electrode lead, wherein the connection part is formed by curing an adhesive applied between the first electrode lead and the second electrode lead, the adhesive is formed by mixing a conductor and a solvent, the solvent is formed by mixing a polymer and a diluent, and the solvent contains 5 wt% to 15 wt% of the diluent.
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公开(公告)号：EP4439811A1
公开(公告)日：2024-10-02
申请号：EP22911997.9
申请日：2022-12-22
发明人： HWANG, Soo Ji , SONG, Dae Woong , KIM, Sang Hun , YU, Hyung Kyun , KANG, Min Hyeong , LIM, Hun Hee
IPC分类号： H01M50/124 , B32B27/12 , B32B27/36 , B32B15/085 , B32B15/09 , B32B15/20 , H01M50/116 , H01M50/15
CPC分类号： Y02E60/10 , B32B15/085 , B32B15/09 , B32B15/20 , B32B27/12 , B32B27/36 , H01M50/116 , H01M50/124 , H01M50/15
摘要： The present invention relates to a pouch film laminate body including a gas barrier layer, a base layer disposed on one surface of the gas barrier layer, and a sealant layer disposed on the other surface of the gas barrier layer, wherein the loop stiffness in an MD direction is 750 mN to 1300 mN.
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公开(公告)号：EP4148886A1
公开(公告)日：2023-03-15
申请号：EP21872975.4
申请日：2021-09-27
发明人： LIM, Hun Hee , KIM, Sang Hun , KANG, Min Hyeong , YU, Hyung Kyun
IPC分类号： H01M50/30 , H01M50/116 , H01M50/572 , H01M50/172 , H01M50/183 , H01M50/543
摘要： A secondary battery according to the present invention comprises: an electrode assembly to which an electrode lead is coupled; a pouch comprising an accommodation part configured to accommodate the electrode assembly in a state, in which a front end of the electrode lead is withdrawn to the outside, and a sealing part formed along a circumference of the accommodation part to seal the accommodation part; and a gas discharge part provided in the pouch to discharge a gas from the inside to the outside of the pouch and block an inflow of moisture from the outside to the inside of the pouch, wherein the gas discharge part comprises: a gas transmitting film having air permeability, by which the gas inside the accommodation part is discharged to the outside; and a moisture absorbing material that absorbs the passing through the gas transmitting film to block the inflow of the moisture from the outside to the inside of the pouch.
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公开(公告)号：EP4439812A1
公开(公告)日：2024-10-02
申请号：EP22912035.7
申请日：2022-12-23
发明人： KANG, Min Hyeong , KIM, Sang Hun , YU, Hyung Kyun , HWANG, Soo Ji , SONG, Dae Woong , LIM, Hun Hee
IPC分类号： H01M50/126 , H01M50/105 , H01M50/131 , H01M50/20
CPC分类号： Y02E60/10 , H01M50/20 , H01M50/126 , H01M50/105 , H01M50/131 , H01M50/124 , H01M50/116 , H01M50/15 , B32B27/36 , B32B15/20 , B32B2307/737620230501 , B32B2307/724220130101 , B32B2307/5420130101 , B32B2439/6220130101 , B32B2457/1020130101 , B32B27/08 , B32B27/34 , B32B2255/1020130101 , B32B2255/20520130101 , B32B27/32 , B32B15/088 , B32B15/085 , B32B15/09
摘要： The present invention relates to a pouch film laminate body capable of manufacturing a high-strength battery case with excellent resistance to external stress and a battery case manufactured using the same, and the pouch film laminate body of the present invention includes a gas barrier layer having a thickness of 60 um or greater, a base layer disposed on one surface of the gas barrier layer and having a tensile strength of 10 kgf/15 mm to 20 kgf/15 mm in a TD direction and an elongation of 150% to 235% in the TD direction, and a sealant layer disposed on the other surface of the gas barrier layer.
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公开(公告)号：EP4043614A1
公开(公告)日：2022-08-17
申请号：EP20889790.0
申请日：2020-08-27
发明人： KANG, Min Hyeong , CHOI, Yong Su , KIM, Sang Hun
摘要： A method for manufacturing an electrode lead according to an embodiment of the present invention for achieving the above objects includes: a step of manufacturing each of a first electrode lead and a second electrode lead; and a step of bonding the first electrode lead to the second electrode lead form a connection part, wherein the step of manufacturing the first electrode lead includes: a step of unwinding a first metal plate from a first metal reel; a step of attaching a first tape to perform masking on a first connection area, on which the connection part is to be formed, in the first metal plate; a step of performing plating and surface treatment on the first metal plate; and a step of removing the first tape, wherein the step of manufacturing the second electrode lead includes: a step of unwinding a second metal plate from a second metal reel; a step of attaching a second tape to perform masking on a second connection area, on which the connection part is to be formed, in the second metal plate; a step of performing plating and surface treatment on the second metal plate; and a step of removing the second tape.
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公开(公告)号：EP4343932A1
公开(公告)日：2024-03-27
申请号：EP22876841.2
申请日：2022-09-28
发明人： HWANG, Soo Ji , KIM, Sang Hun , YU, Hyung Kyun , KANG, Min Hyeong , SONG, Dae Woong , LIM, Hun Hee
IPC分类号： H01M50/129 , H01M50/131 , H01M50/14 , H01M50/105 , B32B15/085 , B32B15/20
摘要： A pouch film stack according to the present invention includes a base layer, a gas barrier layer, and a sealant layer stacked in that order. The sealant layer includes a first sealant layer located adjacent to the gas barrier layer and a second sealant layer stacked on the first sealant layer, and ΔY according to Equation (1) is 66% to 120%. Δ Y = Yield strength of second sealant layer − Yield strength of first sealant layer / Yield strength of first sealant layer × 100
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公开(公告)号：EP4044357A1
公开(公告)日：2022-08-17
申请号：EP20883655.1
申请日：2020-10-27
发明人： KANG, Min Hyeong , JEONG, Seong Heon , CHOI, Yong Su , KIM, Sang Hun , YU, Hyung Kyun , KIM, Hyun Tae , BYEN, Il Gyu , CHO, Chung Ki
IPC分类号： H01M50/543 , H01M50/531 , H01M50/172 , H01M50/183 , B29C65/02
摘要： To solve the above problem, a method for manufacturing an electrode lead according to an embodiment of the present invention includes: a step of manufacturing each of a first electrode lead and a second electrode lead by cutting a metal plate; a step of applying an adhesive to at least one of one end of the first electrode lead or the other end of the second electrode lead; a step of forming a lead stack by bonding the one end of the first electrode lead and the other end of the second electrode lead to each other; a step of placing the lead stack on a die; and a step of applying heat and pressure to a connection portion of the lead stack, in which the first electrode lead and the second electrode lead are connected to each other, by using a pressing device.
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公开(公告)号：EP4439839A1
公开(公告)日：2024-10-02
申请号：EP22911996.1
申请日：2022-12-22
发明人： KANG, Min Hyeong , KIM, Sang Hun , YU, Hyung Kyun , HWANG, Soo Ji , SONG, Dae Woong , LIM, Hun Hee
IPC分类号： H01M50/30 , H01M10/04 , H01M50/105 , H01M50/124 , H01M50/183 , H01M10/052
CPC分类号： Y02E60/10 , H01M10/052 , H01M50/30 , H01M50/105 , H01M10/04 , H01M50/124 , H01M50/183
摘要： The present invention relates to a high-strength battery case with less cracking during molding and less damage caused by external impact, wherein the battery case of the present invention is composed a pouch-type battery case composed of a pouch film laminate body including a gas barrier layer, a base layer disposed on one surface of the gas barrier layer, and a sealant layer disposed on the other surface of the gas barrier layer, and includes at least one cup portion having a recessed shape so as to accommodate an electrode assembly, and a terrace positioned in at least a portion of the circumference of the cup portion, wherein the cup portion includes a bottom surface and a plurality of circumference surfaces surrounding the bottom surface, and the thickness of the gas barrier layer is greater than 30 um at a corner at which the bottom surface comes into contact with a pair of circumferences adjacent to each other.
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公开(公告)号：EP4156397A1
公开(公告)日：2023-03-29
申请号：EP21838206.7
申请日：2021-07-06
发明人： LIM, Hun Hee , KIM, Sang Hun , KANG, Min Hyeong , YU, Hyung Kyun
IPC分类号： H01M50/30 , H01M50/325 , H01M50/116 , H01M50/543
摘要： The present invention relates to a secondary battery. The secondary battery according to the present invention comprises an electrode assembly, in which electrodes and separators are alternately stacked, a battery case, in which an accommodation part accommodating the electrode assembly is formed, and a sealing part is formed along an outer circumferential surface thereof, a connection pipe having one side connected to the accommodation part of the battery case and the other side connected to the outside of the battery case and passing through the battery case, and an aroma valve connected to the other side of the connection pipe 140 and disposed outside the battery case so as to be opened to discharge an internal gas when an internal pressure of the battery case is greater than or equal to a predetermined pressure.
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