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公开(公告)号：EP4457878A1
公开(公告)日：2024-11-06
申请号：EP22850900.6
申请日：2022-12-21
IPC分类号： H01M4/04 , H01M4/525 , H01M4/58 , H01M10/0525 , H01M10/0567 , H01M10/058 , H01M10/44 , H01M10/0569
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公开(公告)号：EP4456245A1
公开(公告)日：2024-10-30
申请号：EP22910656.2
申请日：2022-11-11
申请人： NGK Insulators, Ltd.
IPC分类号： H01M10/058 , H01M4/131 , H01M10/0525 , H01M10/0566 , H01M10/0585 , H01M50/105 , H01M50/109 , H01M50/119 , H01M50/121 , H01M50/124 , H01M50/133 , H01M50/434 , H01M50/46
摘要： Provided is a lithium secondary battery, including: a positive electrode layer including a lithium composite oxide sintered body; a negative electrode layer; a separator interposed between the positive electrode layer and the negative electrode layer; an electrolytic solution impregnated into the positive electrode layer, the negative electrode layer, and the separator; and an exterior body, which has a closed space and is configured to store the positive electrode layer, the negative electrode layer, the separator, and the electrolytic solution in the closed space. This lithium secondary battery has a determination coefficient R 2 of 0.8 or more, which is obtained when plots of a square root of the number of days elapsed of up to 180 days and a capacity maintenance ratio (%) in a float charging test are linearly regressed.
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公开(公告)号：EP3800705B1
公开(公告)日：2024-10-09
申请号：EP20773456.7
申请日：2020-03-12
IPC分类号： H01M10/04 , B06B1/00 , H01M10/058 , B08B3/12 , B06B1/06 , H01M50/673
CPC分类号： H01M10/04 , Y02E60/10 , H01M10/058 , Y02P70/50 , B06B1/0629 , H01M50/673
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公开(公告)号：EP3690989B1
公开(公告)日：2024-10-09
申请号：EP18861677.5
申请日：2018-08-15
IPC分类号： H01M10/058 , H01M4/62 , H01M10/0585 , H01M50/46 , H01M10/052 , H01M10/04
CPC分类号： H01M10/04 , H01M10/052 , H01M10/058 , H01M4/622 , H01M10/0585 , H01M50/461 , Y02E60/10
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6.发明公开
公开(公告)号：EP4431580A1
公开(公告)日：2024-09-18
申请号：EP23869297.4
申请日：2023-06-13
发明人： LI, Lei , HONG, Haiyi , CHENG, Xiaonan , YANG, Jianrui , WANG, Peng , ZHENG, Yi , SUN, Chengdong
IPC分类号： C09J151/00 , C08F214/22 , C08F265/06 , C08F220/56 , C08F220/18 , H01M4/13 , H01M50/489 , H01M10/058
CPC分类号： C08F214/20 , C08F214/22 , C08F214/24 , C08F214/26 , C08F214/28 , C08F214/18 , C08F220/18 , C08F220/56 , C08F265/04 , C08F265/06 , C09J151/00 , H01M4/13 , H01M4/62 , H01M10/058 , H01M50/46 , H01M50/489
摘要： This application relates to the field of battery technologies, and in particular, to a binder and a preparation method thereof, and a separator, electrode assembly, battery cell, battery, and electric apparatus containing such binder. The binder includes a core layer structure and a shell layer structure provided on a surface of the core layer structure, where the core layer structure includes a polyacrylate polymer, and the shell layer structure includes a polyvinylidene fluoride polymer. Polyvinylidene fluoride is a homopolymer with a crystallinity of about 50%, resulting in insufficient adhesion force. Therefore, in this application, the polyvinylidene fluoride polymer is used to envelop the polyacrylate polymer to obtain a core-shell-structured binder, so that the crystallinity of the polyvinylidene fluoride polymer in the core-shell-structured binder is improved to improve adhesion performance of the core-shell-structured binder, thereby increasing adhesion force between a separator and an electrode plate by the binder. In addition, the shell layer structure fully envelops the core layer structure, improving oxidation resistance of the binder and reducing CV floating charge leakage current of a battery.
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公开(公告)号：EP4429007A1
公开(公告)日：2024-09-11
申请号：EP22890254.0
申请日：2022-10-25
发明人： KO, Sung Gwi , SEO, Geun Ho , KIM, Dae Kyu
IPC分类号： H01M50/30 , H01M50/317 , H01M50/152 , H01M50/342 , H01M10/058 , H01M10/04
CPC分类号： Y02E60/10 , Y02P70/50 , H01M50/30 , H01M50/342 , H01M10/04 , H01M10/058 , H01M50/152 , H01M50/317
摘要： An embodiment of the present invention relates to a cylindrical secondary battery, and the cylindrical secondary battery may comprise: a cylindrical can; an electrode assembly which includes a first electrode plate, a second electrode plate, and a separator wound together and is accommodated in the can; and a cap assembly which is insulated from the can, is electrically connected to the electrode assembly, and has a hole formed therethrough to communicate with the inside of the can. According to the embodiment of the present invention, a degassing function is applied so that gas generated before product delivery can be removed and thus deformation of the can and the cap assembly can be reduced. In addition, the occurrence of swelling of the electrode assembly due to internal gas generation can be prevented and thus performance degradation of the secondary battery can be reduced.
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公开(公告)号：EP4428991A1
公开(公告)日：2024-09-11
申请号：EP23883105.1
申请日：2023-10-25
发明人： LEE, Hanyoung
IPC分类号： H01M10/6551 , H01M10/647 , H01M10/6553 , H01M10/613 , H01M50/533 , H01M50/51 , H01M50/211 , H01M10/058 , H01M10/0525 , H01M4/525
CPC分类号： H01M50/533 , H01M50/51 , H01M10/6551 , H01M10/0525 , H01M50/211 , H01M4/525 , H01M10/058 , H01M10/6553 , H01M10/647 , H01M10/613
摘要： The present disclosure provides a battery module containing a plurality of secondary batteries in a module case, wherein the plurality of secondary batteries comprise a pouch type case including: two or more electrode assemblies each including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a non-aqueous electrolyte, and two or more housing parts for housing the two or more electrode assemblies arranged in a lateral direction on a plane, and a connection part formed between the housing parts so that the two or more electrode assemblies can be electrically connected in series,
wherein the plurality of secondary batteries are stacked such that the connection parts face each other, and separation spaces are respectively formed between the plurality of secondary batteries in the connection part, and
wherein cooling fins are respectively located in the respective separation spaces.-
9.发明公开
公开(公告)号：EP4428972A1
公开(公告)日：2024-09-11
申请号：EP23860918.4
申请日：2023-08-31
发明人： LEE, Sang-Kyun , LEE, Yong-Tae , LEE, Hun-Hyeong , HAN, Man-Woong
IPC分类号： H01M10/04 , H01M50/403 , H01M50/46 , B01D67/00 , H01M10/058 , H01M10/052
CPC分类号： Y02P70/50 , Y02E60/10 , B01D67/00 , H01M10/04 , H01M10/058 , H01M10/052 , H01M50/403 , H01M50/46
摘要： A plasma processing apparatus of a unit cell for a secondary battery includes a discharge roller configured to transport a separator of the unit cell for a secondary battery and allowing a metal member to be placed therein, and a plasma processing member configured to generate plasma through a mutual reaction with the metal member and irradiate the plasma to a surface of the separator, wherein a pattern portion having a certain stepped portion is formed on an outer surface of the discharge roller.
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公开(公告)号：EP4425636A1
公开(公告)日：2024-09-04
申请号：EP23892749.5
申请日：2023-01-03
发明人： ZHENG, Zhijian , FAN, Xiang , LIN, Gang , PENG, Yuan , HONG, Chang , NIE, Wenqing , ZHOU, Yuqun
IPC分类号： H01M10/058
摘要： An embodiment of this application provides a device and method for assembling a battery cell. The device includes: a conveyance mechanism, configured to fix an electrode assembly and convey the electrode assembly to a coating station; a coating mechanism, configured to coat at least a part of an outer surface of the electrode assembly with an insulation layer at the coating station, where the conveyance mechanism is further configured to: convey the electrode assembly coated with the insulation layer to an encasing station; and an encasing mechanism, configured to fit, at the encasing station, a housing peripherally onto the electrode assembly coated with the insulation layer. The device and method for assembling a battery cell disclosed herein can improve the assembling efficiency of battery cells.
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