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公开(公告)号：US12046708B2
公开(公告)日：2024-07-23
申请号：US16760065
申请日：2017-11-03
IPC分类号： H01M10/04 , H01M10/0525 , H01M10/0583 , H01M50/534 , H01M50/538
CPC分类号： H01M10/045 , H01M10/0459 , H01M10/0525 , H01M10/0583 , H01M50/534 , H01M50/538
摘要： A foldable flexible assembling of cells for a lithium-ion battery including: a separator containing an electrolyte; a series of n physically separated negative electrodes located on the first side of the separator and a series of n physically separated positive electrodes located on the second side of the separator; a first current collector including a layer covering continuously the series of negative electrodes so as to ensure electrical connection between all the negative electrodes; and a second current collector including a layer covering continuously the series of positive electrodes so as to ensure electrical connection between all the positive electrodes.
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12.发明公开公开(公告)号：US20240222826A1
公开(公告)日：2024-07-04
申请号：US18608743
申请日：2024-03-18
发明人： Hui GU , Linlin Zhu , Guanghao Zhu , Chao Liu , Wenjie Yu , Qingkui Chi , Haizu Jin
IPC分类号： H01M50/636 , H01M10/04 , H01M50/103 , H01M50/538 , H01M50/578
CPC分类号： H01M50/636 , H01M10/0422 , H01M50/103 , H01M50/538 , H01M50/578 , H01M2220/20
摘要： The present application relates to a battery cell and a manufacturing method and device thereof, a battery, and a power consumption apparatus, belonging to the field of battery manufacturing technologies. The battery cell includes: a shell with a first wall; an electrode assembly; and a first current collecting member, where the first wall has a first surface facing the first current collecting member, the first current collecting member has a second surface facing the first wall, one of the first surface and the second surface is provided with a protrusion and the other abuts against the protrusion to form a gap between the first wall and the first current collecting member; and the first current collecting member is provided with a first hole and a second hole, and the first hole is configured to be in communication with the second hole through the gap.
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公开(公告)号：US20240222686A1
公开(公告)日：2024-07-04
申请号：US18603681
申请日：2024-03-13
发明人： Zhaoqing KE
IPC分类号： H01M10/04 , H01M50/186 , H01M50/538
CPC分类号： H01M10/049 , H01M10/0431 , H01M50/186 , H01M50/538
摘要： An electrode assembly includes a positive electrode plate, a first separator, and a negative electrode plate wound together. The positive electrode plate includes a positive electrode current collector and a positive electrode active material layer applied to the positive electrode current collector. The negative electrode plate includes a negative electrode current collector and a negative electrode active material layer applied to the negative electrode current collector. A winding center of the electrode assembly points a direction outside the electrode assembly, an electrode plate with a periphery not covered by the positive electrode plate or the negative electrode plate is defined as an outermost electrode plate of the electrode assembly, and the outermost electrode plate includes a positive electrode plate and a negative electrode plate.
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14.发明公开公开(公告)号：US20240204341A1
公开(公告)日：2024-06-20
申请号：US18592996
申请日：2024-03-01
发明人： Xinxiang CHEN , Long CHEN , Denghua LIN , Shoujun HUANG , Yulian ZHENG , Peng WANG , Haizu JIN
IPC分类号： H01M50/342 , H01M10/04 , H01M50/103 , H01M50/15 , H01M50/209 , H01M50/538 , H01M50/548 , H01M50/55
CPC分类号： H01M50/3425 , H01M10/0404 , H01M10/0431 , H01M50/103 , H01M50/15 , H01M50/209 , H01M50/538 , H01M50/548 , H01M50/55 , H01M2220/20
摘要： A battery cell includes: a housing; a plurality of electrode assemblies, accommodated in the housing; and a pressure relief mechanism, disposed on a first wall of the housing and located at a position on the first wall, where the position is opposite to a middle region between two adjacent electrode assemblies among the plurality of electrode assemblies, and the pressure relief mechanism is configured to release an internal pressure of the battery cell when the internal pressure of the battery cell exceeds a threshold.
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公开(公告)号：US20240204238A1
公开(公告)日：2024-06-20
申请号：US18537271
申请日：2023-12-12
发明人： Kenichi KAKISHITA
IPC分类号： H01M10/04 , H01M50/538
CPC分类号： H01M10/0431 , H01M50/538
摘要： A method of manufacturing a power storage cell includes: a preparing step of preparing an electrode sheet including a current collecting foil and an active material layer; a cutting step of forming a plurality of cuts in the current collecting foil; and a winding step of winding the electrode sheet around a winding core. The current collecting foil includes an end region that is not provided with the active material layer. In the cutting step, the plurality of cuts are formed in the end region such that a coupling portion is formed in the end region. In the winding step, the electrode sheet is wound around the winding core to cause the coupling portion to be fractured along the cuts and the fracturing of the coupling portion forms connecting pieces that are leaned toward the winding core.
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公开(公告)号：US12002998B2
公开(公告)日：2024-06-04
申请号：US17585564
申请日：2022-01-27
发明人： Yukio Harima , Ryoichi Wakimoto
IPC分类号： H01M50/538 , H01M50/186
CPC分类号： H01M50/538 , H01M50/186
摘要： A technology is provided which suppresses the movement of an electrode body inside of a battery case, and prevents the damage at a junction between an electrode tab group and a collector. A secondary battery herein disclosed includes an exterior body, a sealing plate, an electrode body, an electrode tab group, a terminal, and a collector. The collector has a first region part to be joined with the electrode tab group, a second region part to be joined with the terminal, and a third region part closer to the electrode body than the first region part.
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公开(公告)号：US20240162501A1
公开(公告)日：2024-05-16
申请号：US18478751
申请日：2023-09-29
发明人： Joo Youn SHIN , Jung Hyun PARK , Jung Hyun KIM , Joung Ku KIM
IPC分类号： H01M10/0587 , H01M50/107 , H01M50/152 , H01M50/179 , H01M50/533 , H01M50/538
CPC分类号： H01M10/0587 , H01M50/107 , H01M50/152 , H01M50/179 , H01M50/533 , H01M50/538
摘要： A cylindrical secondary battery includes: an electrode assembly including a first electrode plate, a separator, and a second electrode plate; a center pin extending along a winding axis of the electrode assembly, the center pin including an insulating material and having a flange on at least one of an upper end and a lower end thereof; a case accommodating the electrode assembly and the center pin; a terminal extending through an upper end of the case and electrically connected to the first electrode plate of the electrode assembly; and a cap plate sealing a lower end of the case.
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公开(公告)号：US20240154263A1
公开(公告)日：2024-05-09
申请号：US18415693
申请日：2024-01-18
发明人： Yaping HUANG , Xiaowen ZHANG , Wei ZHONG , Pengcheng QIN , Mingxiang LIN
IPC分类号： H01M50/533 , H01M50/249 , H01M50/536 , H01M50/538 , H01M50/54
CPC分类号： H01M50/533 , H01M50/249 , H01M50/536 , H01M50/538 , H01M50/54 , H01M2220/20
摘要： Embodiments of the present disclosure provide an electrode assembly and a traction battery. The electrode assembly includes a plurality of tabs. The plurality of tabs is stacked to each other. At least one of the plurality of tabs includes a tab body and a free end connected to the tab body. The free end is formed into a bent portion through at least a single bending. The bent portion is stacked at a side of the tab body. In some specific embodiments, the tab is designed as a long tab with a long length. When ultrasonic welding is performed, the tab is bent to form the bent portion, and the bent portion is stacked on the tab body for the ultrasonic welding. In this case, since a thickness of a position where the ultrasonic welding is performed is increased, welding stability of the tab can be improved.
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公开(公告)号：US20240154261A1
公开(公告)日：2024-05-09
申请号：US18411279
申请日：2024-01-12
发明人： Ning Liu , Yu Ding , Daolin Liu
IPC分类号： H01M50/533 , H01M10/0525 , H01M50/244 , H01M50/48 , H01M50/538
CPC分类号： H01M50/533 , H01M50/244 , H01M50/48 , H01M50/538 , H01M10/0525
摘要： An electrochemical device and an electronic device containing the electrochemical device. With a first accommodation portion disposed in the electrochemical device, a specific accommodation space is provided for a bend portion of a first tab, thereby avoiding a need to additionally increasing space for accommodating the bend portion, where the space is originally intended for accommodating the electrode assembly. This effectively saves the space occupied by the tab in the packaging shell, reduces the size of the electrochemical device, and improves an energy density of the electrochemical device. The electronic device also achieves a high energy density.
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公开(公告)号：US20240154258A1
公开(公告)日：2024-05-09
申请号：US18471028
申请日：2023-09-20
发明人： Ha Ram YEO , In Hyun HWANG , Bum Rae KIM
IPC分类号： H01M50/528 , H01M50/15 , H01M50/176 , H01M50/533 , H01M50/536 , H01M50/538
CPC分类号： H01M50/528 , H01M50/15 , H01M50/176 , H01M50/533 , H01M50/536 , H01M50/538
摘要： A secondary battery includes: an electrode assembly, a case accommodating the electrode assembly; and a cap assembly sealing the case and including a pair of current collector plates. The electrode assembly includes a first electrode plate having a first substrate tab extending in one direction, a second electrode plate having a second substrate tab extending in another direction, and a separator interposed between the first electrode plate and the second electrode plate. Each of the current collector plates is electrically connected to one of the first substrate tab and the second substrate tab. The current collector plates are laser-welded to the first substrate tab and the second substrate tab, respectively, and a laser welding direction is parallel to a metal processing direction of the corresponding current collector plate.
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