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：EP4325650A1

公开(公告)日：2024-02-21

申请号：EP22822254.3

申请日：2022-10-14

申请人： Eve Power Co., Ltd.

发明人： CHEN, Wen

IPC分类号： H01M50/531 ,  H01M50/30 ,  H01M50/543

摘要： The present application provides a current collector plate and a battery. The current collector plate has a jellyroll connection portion and a pole connection portion, wherein the jellyroll connection portion is provided to be connected to the jellyroll of the battery; the pole connection portion is provided to be connected to a pole of the battery; the current collector plate is provided with a dividing groove and at least one connecting bridge provided in the dividing groove; the connecting bridge connects the jellyroll connection portion and the pole connection portion, wherein the connecting bridge is provided to be fused to disconnect the jellyroll connection portion and the pole connection portion when a thermal runaway of the battery occurs. When the thermal runaway occurs in the battery, the collector plate can not only timely cut off the connection between the pole post and the roll core, but also facilitate the exhaust of the gas generated by the thermal runaway, so as to better reduce the probability of fire or explosion of the battery.

公开(公告)号：EP4343951A1

公开(公告)日：2024-03-27

申请号：EP22826582.3

申请日：2022-10-27

申请人： Eve Power Co., Ltd.

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

IPC分类号： H01M50/502

摘要： A current collecting plate and a battery are provided. The battery includes a roll core, a pole and a current collecting plate, the roll core is welded to the current collecting plate, and the pole is electrically connected with the roll core through the current collecting plate. The current collecting plate includes a main body part and a welding part, the welding part is bent relative to the main body part, and the current collecting plate is welded with the roll core through the welding part.

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.