公开(公告)号：EP4376135A1

公开(公告)日：2024-05-29

申请号：EP22826788.6

申请日：2022-11-04

申请人： Eve Power Co., Ltd. ,  Huizhou Eve Power Co., Ltd

发明人： CHEN, Wen ,  LI, Shangyi ,  HUANG, Liming

IPC分类号： H01M10/00 ,  H01M6/00 ,  H01M10/04 ,  H01M50/533

CPC分类号： Y02P70/50

摘要： The application discloses a coil structure, including a coil, both positive and negative tabs of the coil include a tab uncut area between the tab outer ring cut-out area and the tab center cut-out area, and along the axial direction of the coil, the tab uncut area protrudes from the tab outer ring cut-out area and the tab center cut-out area. After the above-mentioned cut-out area is cut by the cutting process, the problem that the edge of the tab is turned out after rubbing can be improved, and the avoidance space provided by the cutting process can also reduce the risk of tab deformation caused by the extrusion of the jellyroll with the case, and solve the problem that the welding needle or thimble cannot smoothly enter the center hole. Cutting off the negative electrode tab outer ring can also reserve a space for the installation of the negative current collection plate, which can prevent the negative current collection plate from sinking during the battery sealing process, resulting in an increase in the core pressing amount and avoiding short circuit. The application also discloses a battery including the above-mentioned coil structure.

公开(公告)号：EP4358195A1

公开(公告)日：2024-04-24

申请号：EP22822845.8

申请日：2022-10-14

申请人： Eve Power Co., Ltd.

发明人： ZHAO, Fenfen ,  ZHANG, Lei ,  LU, Haixu ,  ZHAO, He ,  HUANG, Liming

IPC分类号： H01M4/78 ,  H01M50/317 ,  H01M10/0525

CPC分类号： Y02E60/10

摘要： A battery and a battery module are provided. The battery includes a housing, a cell, and a current collector plate. A holding chamber is defined in the housing and a pressure relief valve is arranged on the housing; the cell is arranged in the holding chamber; the current collector plate includes a first side and a second side disposed opposite each other; wherein the first side is connected to an end surface of the cell, and the second side is connected to a bottom of the holding chamber; the first side defines a first recess, and the first recess is spaced from the end surface of the cell; the second side defines a second recess, and the pressure relief valve is disposed directly opposite to the second recess; an edge of the current collector plate is spaced from a wall of the holding chamber to define a connection channel, and the first recess and the second recess are connected through the connection channel.

公开(公告)号：EP4462579A1

公开(公告)日：2024-11-13

申请号：EP22925672.2

申请日：2022-10-31

申请人： Eve Power Co., Ltd.

发明人： MIN, Changfei ,  ZHAO, He ,  HUANG, Liming ,  XU, Yuebin ,  HE, Wei

IPC分类号： H01M50/342 ,  H01M50/30 ,  H01M50/289 ,  H01M50/271

摘要： An explosion-proof valve, a cover plate of a battery and a battery are provided in the present application. The explosion-proof valve includes an annular groove, and the annular groove divides the explosion-proof valve into a rupture portion and a fixed portion. A pressure-bearing groove that is arc-shaped is recessedly provided on one side of the rupture portion. A bottom of the pressure-bearing groove is located within the annular groove.

公开(公告)号：EP4358244A1

公开(公告)日：2024-04-24

申请号：EP22826578.1

申请日：2022-11-04

申请人： Eve Power Co., Ltd.

发明人： ZHAO, Fenfen ,  LU, Haixu ,  ZHANG, Lei ,  ZHAO, He ,  HUANG, Liming

IPC分类号： H01M50/152

摘要： A lid plate and a battery are provided by the present application. The lid plate includes a top lid, a lower plastic and a current collecting disk. The top lid is stacked with the lower plastic. An accommodating space is defined on a side of the lower plastic facing away from the top lid. Supporting protrusions are provided in the accommodating space. The supporting protrusions are configured to defined a limiting space. The current collecting disk includes the current collecting disk main body and the fuse structure. The fuse structure includes a first part and a second part. The first part passes through the lower plastic and is electrically connected to the top lid, the second part is connected to the current collecting disk main body. The current collecting disk main body is located outside the limiting space and abuts against the supporting protrusions. It can avoid a situation that the battery is shaken by setting the supporting protrusions, thereby causing the current collecting disk main body to press the fuse structure, so that an installation space of the fuse structure is reduced. The lid plate can effectively solve a problem that adhesion may occur even if the fuse structure has been fused, so that the current collecting disk main body is still in a conductive state, ensuring safety in use of the battery.

公开(公告)号：EP4354602A1

公开(公告)日：2024-04-17

申请号：EP22818604.5

申请日：2022-10-27

申请人： Eve Power Co., Ltd.

发明人： Li, Shangyi ,  HUANG, Liming ,  Yue, Liangliang

IPC分类号： H01M50/107 ,  H01M50/152

CPC分类号： Y02E60/10 ,  H01M50/152 ,  H01M50/107

摘要： A cylindrical battery and a battery pack are provided in embodiments of the application, which relates to the field of battery technology. The cylindrical battery includes a housing, a first end cover, a second end cover, a battery cell, and a pole post. The battery cell is accommodated in the housing, and the first end cover and the second end cover seal at ends of the housing, respectively. The pole post is connected with the battery cell and extended through the first end cover. The pole post is cylindrical, a diameter of the pole post is Φ1, and a diameter of the first end cover is Φ2, wherein Φ1/Φ2≤34%, and Φ1≥12mm.

公开(公告)号：EP4303998A1

公开(公告)日：2024-01-10

申请号：EP22818599.7

申请日：2022-10-14

申请人： Eve Power Co., Ltd.

发明人： YUE, Liangliang ,  HUANG, Liming ,  XIAO, Tianli ,  CHEN, Wen ,  LI, Shangyi ,  LIU, Jing ,  XU, Yuebin

IPC分类号： H01M50/567

摘要： The present application provides a battery housing assembly and a battery. The housing assembly comprises a housing body, an electrode column and an insulating part, wherein the housing body is provided with a mounting hole, the electrode column penetrates the mounting hole, the column body comprises a first end and a second end, the second end is provided inside the housing body, the first end is provided with a restricting part, the second end is provided with a riveting part, the restricting part and the riveting part jointly clamp the insulating part and the housing body, the end surface of the second end is provided with a groove, and the groove is adjacent to the riveting part. By providing an integrated electrode column and fixing the electrode column and the housing body by riveting, not only may the structure of the electrode column be simplified, but also may reduce the gap generated by the assembly of the housing assembly and improve the sealing of the housing assembly; by providing a groove at the riveted end of the electrode column, a local thickness between the riveting part and the housing body may be reduced, so as to enable the riveting part to be bent according to the preset position, which may be easy to avoid the cracking problem due to the excessive length of the riveted flange, thereby reducing the difficulty of riveting.

公开(公告)号：EP4160755A1

公开(公告)日：2023-04-05

申请号：EP22803860.0

申请日：2022-05-12

申请人： Eve Power Co., Ltd.

发明人： HUANG, Liming ,  YUE, Liangliang ,  LIU, Jing ,  XU, Yuebin ,  HE, Wei

IPC分类号： H01M4/72 ,  H01M50/528

摘要： Provided is a current collector disk, the current collector disk includes a welding disk and multiple support feet connected to the welding disk, the welding disk is provided with multiple through holes, the multiple through holes vertically penetrate through an upper end surface and a lower end surface of the welding disk, and a direction of end surfaces, facing away the welding disk, of the multiple support feet is the same as a direction of the lower end surface of the welding disk. Further provided is a battery, and the battery is provided with the current collector disk described above.

公开(公告)号：EP4152493A1

公开(公告)日：2023-03-22

申请号：EP22804067.1

申请日：2022-05-20

申请人： Eve Power Co., Ltd.

发明人： HUANG, Liming ,  YUE, Liangliang ,  LIU, Jing ,  XU, Yuebin ,  HE, Wei

IPC分类号： H01M50/179 ,  H01M50/188 ,  H01M50/184 ,  H01M50/198

摘要： A cylindrical battery is provided, which includes a case, a positive pole and an insulation sealing member. The case is a cylindrical groove structure. The positive pole is riveted to the case, and the insulation sealing member is arranged between the positive pole and the case. The insulation sealing member comprises an upper insulation sealing member and a lower insulation sealing member, the upper insulation sealing member is arranged outside the case and is engaged with and connected to the case, and the lower insulation sealing member is arranged inside the case. At least one of the upper insulation sealing member and the lower insulation sealing member is provided with an annular protrusion block, the annular protrusion block fits closely against an outer sidewall of a portion, passing through the case, of the positive pole, and the outer sidewall of the portion, passing through the case, of the positive pole presses the annular protrusion block towards an inner sidewall of a portion, being passed through, of the case.

公开(公告)号：EP4358275A1

公开(公告)日：2024-04-24

申请号：EP22829537.4

申请日：2022-10-31

申请人： Eve Power Co., Ltd.

发明人： ZHAO, Fenfen ,  MIN, Changfei ,  LU, Haixu ,  ZHANG, Lei ,  ZHAO, He ,  HUANG, Liming

IPC分类号： H01M50/502

CPC分类号： Y02E60/10

摘要： A current collector, a battery cover plate, and a battery structure are provided. The current collector includes a first connection portion and a second connection portion. The first connection portion is connected to an electrode post holder, and the first connection portion and the second connection portion are connected through a bending-resistant portion. The battery cover plate includes the above current collector, an electrode post, and a top cover plate. The electrode post body penetrates the top cover plate to be connected to a terminal. The terminal and the current collector are disposed on opposite sides of the top cover plate, and the first connection portion of the current collector is connected to the electrode post.

公开(公告)号：EP4350876A1

公开(公告)日：2024-04-10

申请号：EP22821846.7

申请日：2022-10-14

申请人： Eve Power Co., Ltd.

发明人： ZHANG, Lei ,  HUANG, Liming ,  ZHAO, He ,  XU, Yuebin ,  HE, Wei

IPC分类号： H01M50/636 ,  H01M50/267

摘要： The present application provides a battery cover plate and a battery. The battery includes a battery body, a battery housing, and a battery cover plate. The battery cover plate is disposed on the battery housing. The battery body is received in an accommodating cavity defined by the battery housing and the battery cover plate. The battery cover plate includes a cover plate body, a first seal, a second seal, and a sealing ring. The cover plate body is provided with a liquid injection hole, the first seal is attached to a hole wall of the liquid injection hole, and the first seal is provided with a threaded hole extending along an axis direction of the liquid injection hole. The second seal includes a head and a connecting part connected to each other, a diameter of the head is greater than a diameter of the connecting part, and a first step surface is defined between the head and the connecting part. The connecting part is provided with an external thread, and the external thread is threadedly connected to the threaded hole. The sealing ring is located between the first step surface and an upper surface of the cover plate body. The battery cover plate can seal the liquid injection hole without welding, thereby reducing a safety hazard during long-term use of the battery.