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公开(公告)号：EP4283730A2
公开(公告)日：2023-11-29
申请号：EP22275169.5
申请日：2022-12-29
发明人： CAO, Hui , HU, Peng , WANG, Xingdong , HOU, Min , YU, Xianfeng , LIU, Wei , JIN, Lingwei , CAI, Yunlong , YU, Zhaoyu , WU, Shiming
IPC分类号： H01M10/04 , H01M50/503 , H01M50/516 , H01M50/526 , H01M50/593
摘要： The application relates to a secondary battery and an assembly method thereof. The secondary battery comprises a secondary battery assembly, the secondary battery assembly comprises an electric cell assembly, a transfer conductor and an insulation plate, wherein the electric cell assembly comprises at least two electric cells arranged side by side, and each electric cell has a tab extending from the top surface of the electric cell. The transfer conductor is provided with a transfer conductor tab assembly part. The insulation plate is located between the electric cell assembly and the transfer conductor, and the insulation plate is provided with a plate tab matching part, wherein, the folded tab passes through the plate tab matching part of the base plate and the transfer conductor tab assembly part in turn, and then is welded with the transfer conductor. The secondary battery of the application features short tabs, good battery performance, high safety, high assembly efficiency and low cost.
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公开(公告)号：EP4283731A3
公开(公告)日：2024-03-20
申请号：EP22275170.3
申请日：2022-12-29
发明人： CAO, Hui , YU, Xianfeng , WANG, Xingdong , HOU, Min , HU, Peng , LIU, Wei , HU, Yiyang , CAI, Yunlong , LIU, Chan , YU, Zhaoyu
IPC分类号： H01M10/04 , H01M50/15 , H01M50/164
摘要： The application relates to a top cover structure of a secondary battery, a top cover assembly and a secondary battery, which relates to the technical field of secondary batteries. The top cover structure includes: an insulating plate, provided with a lower through hole penetrating up and down; a top cover plate located on the top of the insulating plate, provided with an upper through hole interconnected with the lower through hole and penetrating up and down; a conductor, passing through the upper through hole and the lower through hole and fixedly connecting with the top cover plate and the insulating plate, and the conductor is provided with an intersecting hole penetrating through the conductor. In the present application, an intersecting hole penetrating through the conductor is provided on the conductor, so that the conductor can not only connect and conduct the secondary battery from the outside to the inside of the secondary battery, but also can conveniently inject or replenish liquid into the secondary battery through the intersecting hole, thereby improving the production efficiency of the secondary battery.
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公开(公告)号：EP4283730A3
公开(公告)日：2024-02-28
申请号：EP22275169.5
申请日：2022-12-29
发明人： CAO, Hui , HU, Peng , WANG, Xingdong , HOU, Min , YU, Xianfeng , LIU, Wei , JIN, Lingwei , CAI, Yunlong , YU, Zhaoyu , WU, Shiming
IPC分类号： H01M10/04 , H01M50/503 , H01M50/516 , H01M50/526 , H01M50/593
摘要： The application relates to a secondary battery and an assembly method thereof. The secondary battery comprises a secondary battery assembly, the secondary battery assembly comprises an electric cell assembly, a transfer conductor and an insulation plate, wherein the electric cell assembly comprises at least two electric cells arranged side by side, and each electric cell has a tab extending from the top surface of the electric cell. The transfer conductor is provided with a transfer conductor tab assembly part. The insulation plate is located between the electric cell assembly and the transfer conductor, and the insulation plate is provided with a plate tab matching part, wherein, the folded tab passes through the plate tab matching part of the base plate and the transfer conductor tab assembly part in turn, and then is welded with the transfer conductor. The secondary battery of the application features short tabs, good battery performance, high safety, high assembly efficiency and low cost.
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公开(公告)号：EP4283731A2
公开(公告)日：2023-11-29
申请号：EP22275170.3
申请日：2022-12-29
发明人： CAO, Hui , YU, Xianfeng , WANG, Xingdong , HOU, Min , HU, Peng , LIU, Wei , HU, Yiyang , CAI, Yunlong , LIU, Chan , YU, Zhaoyu
IPC分类号： H01M10/04 , H01M50/15 , H01M50/164
摘要： The application relates to a top cover structure of a secondary battery, a top cover assembly and a secondary battery, which relates to the technical field of secondary batteries. The top cover structure includes: an insulating plate, provided with a lower through hole penetrating up and down; a top cover plate located on the top of the insulating plate, provided with an upper through hole interconnected with the lower through hole and penetrating up and down; a conductor, passing through the upper through hole and the lower through hole and fixedly connecting with the top cover plate and the insulating plate, and the conductor is provided with an intersecting hole penetrating through the conductor. In the present application, an intersecting hole penetrating through the conductor is provided on the conductor, so that the conductor can not only connect and conduct the secondary battery from the outside to the inside of the secondary battery, but also can conveniently inject or replenish liquid into the secondary battery through the intersecting hole, thereby improving the production efficiency of the secondary battery.
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公开(公告)号：EP4156395A1
公开(公告)日：2023-03-29
申请号：EP22822253.5
申请日：2022-06-23
发明人： CAO, Hui , CAO, Kai , CHEN, Yingqi , LIU, Wei , CHEN, Dandan , YANG, Xiaofeng , HOU, Min , YU, Xianfeng , LIU, Chan , YU, Zhaoyu
IPC分类号： H01M50/289 , H01M50/264 , H01M50/204
摘要： The invention provides a battery module, a battery pack and an electric vehicle. The battery module comprises a fixing component, the fixing component comprising a plurality of insertion posts, the insertion posts being sandwiched between a plurality of the cells. Further, the cell is provided with a fillet structure on the edges and the insertion post is connected to the fillet structure. According to the battery module, a plurality of removable reinforcement points are provided by a plurality of insertion posts, which do not affect the stacking density of the cells in the battery pack, and increasing the mechanical connection strength of the battery module. The removable design of the battery module and insertion posts solves the maintenance problem of the integrated battery pack and improves the safety of the battery module, featuring high structural strength, integrity and stability.
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6.发明公开
公开(公告)号：EP4160747A1
公开(公告)日：2023-04-05
申请号：EP21909093.3
申请日：2021-12-02
发明人： CAO, Hui , SUN, Yuwei , HOU, Min , LIU, Chan , WANG, Jinzuan , YU, Zhaoyu
IPC分类号： H01M4/62 , H01M4/38 , H01M4/134 , H01M10/0525 , B82Y30/00
摘要： Preparation of a silicon composite material, and a negative electrode plate containing same, relating to the field of silicon-based composite materials. The silicon composite material comprises silicon nanoparticles (1), carbon nanotubes (2), silicon oxide, lithium oxide, and lithium metasilicate; the carbon nanotubes (2) and the silicon nanoparticles (1) are dispersed and cross-linked to form a three-dimensional network structure; silicon oxide, lithium oxide, and lithium metasilicate cover the three-dimensional network structure to form secondary particles. The secondary particles and graphite are homogenized and coated according to a specific particle size ratio to prepare the negative electrode plate containing the silicon composite material and having high capacity development, good conductivity, high coulombic efficiency, small volume expansion, and high cycling stability.
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公开(公告)号：EP4156363A1
公开(公告)日：2023-03-29
申请号：EP21922659.4
申请日：2021-12-27
发明人： CAO, Hui , HOU, Min , LIU, Chan , HU, Yiyang , YU, Zhaoyu
IPC分类号： H01M10/0525 , H01M10/42 , H01M10/058
摘要： Disclosed in the present invention are a safe lithium-ion battery and a manufacturing method therefor. A battery positive electrode material is lithium iron phosphate, or a mixture of lithium iron phosphate and one or more of lithium nickel cobalt manganese oxide, lithium manganate, and lithium cobalt oxide, or a mixture of lithium iron phosphate and one or two of lithium manganese iron phosphate and lithium-rich lithium iron oxide. The lithium iron phosphate accounts for more than 60% (mass ratio). In the manufacturing process of an electrode plate (a positive plate or a negative plate), a redox shuttle agent is added as an additive. The additive can start a redox shuttle reaction at a specific voltage to convert redundant electrical energy into thermal energy; continuous charging can be tolerated under a voltage of 3.8-3.95V, thereby improving safety performance of the battery.
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公开(公告)号：EP4084195A1
公开(公告)日：2022-11-02
申请号：EP20904663.0
申请日：2020-12-24
发明人： CAO, Hui , YU, Xianfeng , HOU, Min , LIU, Chan , HU, Peng , CAI, Yunlong , YU, Zhaoyu
IPC分类号： H01M50/15 , H01M50/176
摘要： Provided are a top cover for a power battery and a power battery. The top cover for a power battery comprises: a top cover plate comprising a recessed platform for a post and a post hole, the recessed platform for a post being provided in a first surface of the top cover plate in a depressed manner, and the post hole being located in the recessed platform; a first post comprising a first post protrusion passing through the post hole; a first fastener comprising a first fastener through hole, the first post being partially disposed within the first fastener through hole, and the first fastener being partially disposed within the recessed platform; a second post comprising a second post protrusion, the second post protrusion comprising a protrusion hole, the first post protrusion extending into the protrusion hole, and the first post being in electrical contact with the second post; a first sealing member disposed within the recessed platform and being in contact with the first post; and an insulation plate comprising an insulation plate through hole and provided at a side of a second surface of the top cover plate, the second surface being a reverse side surface of the first surface, and the second post protrusion passing through the insulation plate through hole and being in electrical contact with the first post.
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9.发明公开
公开(公告)号：EP3694043A1
公开(公告)日：2020-08-12
申请号：EP19837667.5
申请日：2019-02-28
发明人： CAO, Hui , HOU, Min , LIU, Chan , YU, Zhaoyu , LIU, Si , LIU, Wei , JIANG, Sen
IPC分类号： H01M10/0587 , H01M10/0525 , H01M4/13
摘要： Provided are an electrode plate and a battery cell of a wound lithium-ion battery and a method for manufacturing same. The electrode plate comprises an electrode plate body and at least two groups of tabs arranged on the electrode plate body, with each group of tabs including multiple tabs, wherein the multiple tabs have equal intervals therebetween, and the widths of the multiple tabs are successively increased by 2πΔt, with Δt being the sum of the thicknesses of a positive electrode plate, a negative electrode plate and two layers of a separation film of the battery cell of the lithium-ion battery. The present invention can avoid the problem in the prior art of burrs on an electrode plate due to secondary die-cutting, and can reduce the possibility of self-discharge of the battery. Since the body of each tab is completely coated with an electrode material, the energy density is high, thereby improving the safety of the battery. By means of slightly adjusting the widths of the tabs, continuous production is realized.
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