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公开(公告)号：EP4283773A1
公开(公告)日：2023-11-29
申请号：EP22919041.8
申请日：2022-12-13
发明人： KIM, Sang-Hun , SONG, Dae-Woong , KANG, Min-Hyeong , YU, Hyung-Kyun , LIM, Hun-Hee , HWANG, Soo-Ji
IPC分类号： H01M50/358 , H01M50/171 , H01M50/193 , H01M50/105 , H01M50/533 , H01M50/186 , H01M50/46 , H01M10/052
摘要： The present disclosure relates to a secondary battery comprising an electrode assembly having an electrode lead attached thereto; a case comprising a receiving portion in which the electrode assembly is received, and a sealing portion comprising a sealant resin and configured to seal the electrode assembly; a lead film configured to cover a portion of an outer surface of the electrode lead and interposed between the electrode lead and the case; a vent area disposed in at least a portion of the case; and a vent member comprising a first layer comprising a resin having lower melting point than the sealant resin, and a second layer disposed on at least one surface of the first layer and comprising an adhesive material, the vent member being inserted into the vent area, wherein a thickness of the second layer is equal to or smaller than 5 µ m.
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公开(公告)号：EP4207464A1
公开(公告)日：2023-07-05
申请号：EP22788507.6
申请日：2022-04-15
发明人： HWANG, Soo-Ji , KIM, Sang-Hun , KANG, Min-Hyeong , SONG, Dae-Woong , YU, Hyung-Kyun , LIM, Hun-Hee
IPC分类号： H01M50/375 , H01M50/342 , H01M50/197 , H01M50/193 , H01M50/178 , H01M50/129
摘要： Disclosed herein is a secondary battery, which includes an electrode assembly; an electrode lead attached to the electrode assembly; a case configured to accommodate the electrode assembly therein; a lead film formed to surround a part of an outer surface of the electrode lead and interposed between the electrode lead and the case; a vent region formed in at least a part of the case; and a vent member inserted into the vent region and having a structure of three or more layers including a first resin in a lowermost layer, a second resin in an uppermost layer, and a third resin in a middle layer, wherein the second resin is a resin having a higher melting point than the first resin, and the third resin is a resin having a higher melting point than the second resin.
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公开(公告)号：EP4203161A1
公开(公告)日：2023-06-28
申请号：EP22811622.4
申请日：2022-05-24
发明人： LIM, Hun-Hee , KIM, Sang-Hun , KANG, Min-Hyeong , SONG, Dae-Woong , YU, Hyung-Kyun , HWANG, Soo-Ji
IPC分类号： H01M50/30 , H01M50/178
摘要： Disclosed is a battery cell, which includes a battery case having an accommodation portion in which an electrode assembly is mounted, and a sealing portion formed by sealing an outer periphery thereof; and a gas discharge unit inserted into the sealing portion, wherein the gas discharge unit protrudes from the inside of the battery case toward the outside of the battery case, the gas discharge unit includes a non-adhesive layer and an adhesive layer located on the non-adhesive layer, and the non-adhesive layer and the adhesive layer are bent to be opened toward the inside of the battery case.
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公开(公告)号：EP4191775A1
公开(公告)日：2023-06-07
申请号：EP22788481.4
申请日：2022-04-14
发明人： KIM, Sang-Hun , HWANG, Soo-Ji , KANG, Min-Hyeong , SONG, Dae-Woong , YU, Hyung-Kyun , LIM, Hun-Hee
IPC分类号： H01M50/375 , H01M50/342 , H01M50/193 , H01M50/129 , H01M50/178
摘要： Disclosed herein is a secondary battery, which includes an electrode assembly; an electrode lead attached to the electrode assembly; a case configured to accommodate the electrode assembly therein; a lead film formed to surround a part of an outer surface of the electrode lead and interposed between the electrode lead and the case; a vent region formed in at least a part of the case; and a vent member inserted into the vent region and containing a linear low-density polyethylene having a comonomer with a carbon number of 6 or more, wherein the vent member has a thickness of 50 µm or more and less than 200 µm.
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公开(公告)号：EP4333182A1
公开(公告)日：2024-03-06
申请号：EP23799527.9
申请日：2023-02-08
发明人： LIM, Hun-Hee , KIM, Sang-Hun , KANG, Min-Hyeong , SONG, Dae-Woong , YU, Hyung-Kyun , HWANG, Soo-Ji
IPC分类号： H01M50/30 , H01M50/358 , H01M50/375 , H01M50/105 , H01M50/124 , H01M50/131 , H01M50/183
摘要： Disclosed are a gas release member which is a sheet having gas permeability, wherein a peripheral region of the sheet has a hole, and a secondary battery comprising the same. The gas release member according to an embodiment of the present disclosure has improved adhesion characteristics with a case of the secondary battery.
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公开(公告)号：EP4220841A1
公开(公告)日：2023-08-02
申请号：EP22788512.6
申请日：2022-04-15
发明人： SONG, Dae-Woong , KIM, Sang-Hun , KANG, Min-Hyeong , YU, Hyung-Kyun , LIM, Hun-Hee , HWANG, Soo-Ji
IPC分类号： H01M50/375 , H01M50/342 , H01M50/193 , H01M50/129 , H01M50/178
摘要： Disclosed herein is a secondary battery having a vent member. The secondary battery may include an electrode assembly to which an electrode lead is attached, a case including an accommodation portion. The accommodation portion may be defined by a bent side and a sealing portion. The accommodation portion may be configured to receive the electrode assembly and seal the electrode assembly therein. The sealing portion may contain a sealant resin to form a seal around the electrode assembly. The sealing portion may include an extension adjacent to and extending from the bent side. The vent member may be disposed at least partially in the extension. The vent member may include a vent resin having a lower melting point than the sealant resin.
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公开(公告)号：EP4203164A1
公开(公告)日：2023-06-28
申请号：EP22788506.8
申请日：2022-04-15
发明人： HWANG, Soo-Ji , KIM, Sang-Hun , KANG, Min-Hyeong , SONG, Dae-Woong , YU, Hyung-Kyun , LIM, Hun-Hee
IPC分类号： H01M50/375 , H01M50/342 , H01M50/197 , H01M50/193 , H01M50/178 , H01M50/129
摘要： Disclosed herein is a secondary battery, which includes an electrode assembly; an electrode lead attached to the electrode assembly; a case configured to accommodate the electrode assembly therein; a lead film formed to surround a part of an outer surface of the electrode lead and interposed between the electrode lead and the case; a vent region formed in at least a part of the case; and a vent member inserted into the vent region and having a structure of three or more layers, wherein the vent member contains a linear low-density polyethylene having a comonomer with a carbon number of 6 or more in outermost layers and contains a resin having a higher melting point than the linear low-density polyethylene having a comonomer with a carbon number of 6 or more in a middle layer.
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公开(公告)号：EP4203149A1
公开(公告)日：2023-06-28
申请号：EP22792053.5
申请日：2022-04-21
发明人： LIM, Hun-Hee , KIM, Sang-Hun , KANG, Min-Hyeong , SONG, Dae-Woong , YU, Hyung-Kyun , HWANG, Soo-Ji
IPC分类号： H01M50/197 , H01M50/198 , H01M50/178
摘要： Disclosed is a battery cell, which includes a battery case having an accommodation portion in which an electrode assembly is mounted, and a sealing portion formed by sealing an outer periphery thereof; an electrode lead electrically connected to an electrode tab included in the electrode assembly and protruding out of the battery case via the sealing portion; and a lead film located at a portion corresponding to the sealing portion in at least one of an upper portion and a lower portion of the electrode lead, wherein the lead film includes a first adhesive layer and a second adhesive layer, and a moisture removal layer is located between the first adhesive layer and the second adhesive layer, and the moisture removal layer includes a getter material.
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公开(公告)号：EP4195379A1
公开(公告)日：2023-06-14
申请号：EP22760126.7
申请日：2022-02-25
发明人： LIM, Hun-Hee , KIM, Sang-Hun , KANG, Min-Hyeong , YU, Hyung-Kyun , HWANG, Soo-Ji
IPC分类号： H01M50/198 , H01M50/186 , H01M50/193 , H01M50/178 , H01M50/30
摘要： Disclosed is a battery cell, which includes a battery case having an accommodation portion in which an electrode assembly is mounted, and a sealing portion formed by sealing an outer periphery thereof, an electrode lead electrically connected to an electrode tab included in the electrode assembly and protruding out of the battery case via the sealing portion, a lead film located at a portion corresponding to the sealing portion in at least one of an upper portion and a lower portion of the electrode lead, and a getter unit formed in a partial region between the electrode lead and the sealing portion. The getter unit includes a first end directed toward an outside of the battery case and a second end directed toward an inside of the battery case. The first end is covered by the lead film and not covered by the sealing portion.
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公开(公告)号：EP4170805A1
公开(公告)日：2023-04-26
申请号：EP22788509.2
申请日：2022-04-15
发明人： KIM, Sang-Hun , SONG, Dae-Woong , KANG, Min-Hyeong , YU, Hyung-Kyun , LIM, Hun-Hee , HWANG, Soo-Ji
IPC分类号： H01M50/375 , H01M50/342 , H01M50/193 , H01M50/178 , H01M50/129
摘要： Disclosed herein is a secondary battery having a vent member. The secondary battery may include an electrode assembly, a case including an accommodation portion to receive the electrode assembly, an electrode lead attached to the electrode assembly and a vent member. The case may include a sealing portion to seal the electrode assembly therein. The sealing portion may include a sealant resin to form a seal around the electrode assembly. The electrode lead may extend away from the case along a first direction. The sealing portion may include an inclined sealing portion adjacent the electrode lead. The inclined sealing portion may extend along a second direction. The second direction may be non-orthogonal to the first direction. The vent member may be disposed in the inclined sealing portion. The vent member may include a vent resin having a lower melting point than the sealant resin.
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