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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：EP4386904A1
公开(公告)日：2024-06-19
申请号：EP23211785.3
申请日：2023-11-23
IPC分类号： H01M4/38 , H01M4/485 , H01M4/525 , H01M10/052 , H01M10/0565 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136
CPC分类号： Y02E60/10 , Y02P70/50 , H01M10/0565 , H01M10/052 , H01M2300/008520130101 , H01M2300/009120130101 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/136 , H01M4/381 , H01M4/386 , H01M4/485 , H01M4/525
摘要： The present invention discloses a method for preparing an in-situ polymerized semi-solid state battery, comprising the following steps: assembling: assembling a cathode plate, a separator and an anode plate into a case to form a dummy cell; first injection: injecting a lithium battery liquid electrolyte; aging and formation; second injection: injecting a mixture of polymer monomers, a plasticizer and an initiator, wherein the polymer monomers are a combination of vinylene carbonate and tripropargyl phosphate; aging, and in-situ polymerization at 58-65°C to form gel, thus obtaining a low impedance semi-solid state battery. The formulation of the second injection of the present invention comprises a tridimensional monomer, and the liquid electrolyte can be locked in the three-dimensional structure after crosslinking. Compared with a chain polymer, fewer polymers can be used to achieve the gel effect, the formed gel structure is more stable and possesses better thermal stability, and at the same time, the liquid component is higher and the impedance is lower, so that the semi-solid state battery with low impedance is obtained.
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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：EP4286343A1
公开(公告)日：2023-12-06
申请号：EP23275080.2
申请日：2023-05-19
发明人： CAO,, Hui , YAO,, Yi , HOU,, Min , LIU,, Chan , GUO,, Yingying , CHEN,, Dandan
摘要： The present disclosure discloses a high-safety ternary positive electrode material and a method for preparing the same; wherein the ternary positive electrode material has a chemical composition of Li a (Ni x Co y Mn 1-x-y ) 1-b M b O 2-c A c , wherein 0.75 0, 0≤b≤0.01, 0≤c≤0.2, M is one or more selected from the group consisting of Al, Zr, Ti, Y, Sr, W and Mg, and A is one or more selected from the group consisting of S, F and N; and C Mn -(1-x-y)>0.07; C Co -y≥0.05; 0≤[C Mn -(1-x-y)]/(C Co -y)≤2.0. The ternary positive electrode material of the present disclosure is a high-nickel single crystal material with gradient concentration; it has the advantages of high capacity and high thermal stability, and the preparation method is simple, and is suitable for large-scale production.
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6.发明公开
公开(公告)号：EP4261925A1
公开(公告)日：2023-10-18
申请号：EP22275160.4
申请日：2022-12-15
发明人： CAO,, Hui , YAO,, Yi , HOU,, Min , LIU,, Chan , GUO,, Yingying , YANG,, Yaqing
摘要： The present disclosure provides a current collector having a pore-forming functional coating layer, an electrode sheet and a battery. The current collector having a pore-forming functional coating layer according to the present disclosure comprises an electrically conductive substrate layer and a functional coating layer applied on at least one surface of the substrate layer, wherein the functional coating layer comprises a gas-generating compound which has a decomposition temperature of 250°C or less and is capable of producing gas. A compound capable of generating gas by decomposition is applied in the functional layer of the current collector according to the present disclosure. Hence, through holes extending through the coating layer can be produced by decomposing the pore-forming compound at the bottom of the active coating layer to generate gas with no need to change the existing coating process, thereby improving the kinetic performance of battery products. The method is simple, practicable, cost efficient, suitable for popularization, and has high application value.
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7.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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公开(公告)号：EP4432425A2
公开(公告)日：2024-09-18
申请号：EP24163983.0
申请日：2024-03-15
IPC分类号： H01M10/613 , H01M10/6554 , H01M10/6556 , H01M10/6568 , H01M50/209 , H01M50/289 , H01M50/293
CPC分类号： H01M50/209 , H01M10/613 , H01M10/6556 , H01M10/6568 , H01M50/289 , H01M50/293 , H01M10/6554
摘要： The present application provides a battery box, battery pack and energy storage container. The battery box comprises: a bottom plate and a frame, the bottom plate and the frame together form an installation cavity, the bottom plate is provided with a number of cooling flow channels, and the cooling flow channels are used for circulating cooling medium; a coolant-converging-channel, at least one end of the bottom plate is provided with the coolant-converging-channel, the coolant-converging-channel is located inside or outside the installation cavity, and the coolant-converging-channel connects to the bottom plate and is interconnected to the cooling flow channels. The battery box, battery pack and energy storage container of the present application can achieve uniform heat dissipation of the battery module, convenient for thermal management inside the battery pack and improving battery safety.
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公开(公告)号：EP4287357A1
公开(公告)日：2023-12-06
申请号：EP23275086.9
申请日：2023-05-31
发明人： CAO, Hui , ZHAO, Qi , LIU, Si , Li, Wenlong , SHAO, Yantao , YU, Chen , HOU, Min
IPC分类号： H01M10/613 , H01M10/617 , H01M50/204
摘要： The present application relates to the technical field of battery equipment and electric vehicles, disclosing a battery pack liquid-cooled plate and a battery pack. A battery pack liquid-cooled plate comprises: a liquid-cooled bottom plate for bottom cooling of a battery, wherein a first cooling channel is provided in the liquid-cooled bottom plate; multiple liquid-cooled side plates used for side cooling of the battery, wherein a second cooling channel is provided in each liquid-cooled side plate, each liquid-cooled side plate and the liquid-cooled bottom plate are arranged perpendicular to each other, and a flow channel of each liquid-cooled side plate interconnects with each other through a multi-pass device to form a flow-channel structure.
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10.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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