公开(公告)号：EP4297171A1

公开(公告)日：2023-12-27

申请号：EP22826627.6

申请日：2022-11-04

申请人： Eve Power Co., Ltd.

发明人： YUE, Liangliang

IPC分类号： H01M50/528

摘要： The present application discloses a connecting member and a battery, relating to the field of power battery technology. The connecting member comprises a body part and a connecting part, wherein the connecting part is connected to an edge of the body part in a peripheral direction, the connecting part is bendable relative to the body part so as to provide an angle between the connecting part and the body part, and a through hole is provided on an intersection line between the connecting part and the body part. The connecting member may prevent the edge from sinking into the winding core when sealing openings by roll grooving, which reduces safety hazards and improves safety.

公开(公告)号：EP4350852A1

公开(公告)日：2024-04-10

申请号：EP22818606.0

申请日：2022-10-17

申请人： Eve Power Co., Ltd.

发明人： LI, Shangyi ,  YUE, Liangliang ,  WANG, Zhiming

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

摘要： The present application provides a top cap assembly and a battery structure. The battery includes a housing including a mounting hole, and the top cap assembly passes through the mounting hole of the housing. The top cap assembly includes a pole, a sealing element, and a plastic element. The pole is provided with an annular groove recessed in a radial direction. The sealing element is sleeved on the pole and positioned in the annular groove. The sealing element is sandwiched between the housing and a groove wall of the annular groove, and the sealing element is partially positioned outside the housing. The plastic element is sleeved on the sealing element and positioned outside the housing 40, and the plastic element is partially sandwiched between the housing and the groove wall of the annular groove.

公开(公告)号：EP4343952A1

公开(公告)日：2024-03-27

申请号：EP22826581.5

申请日：2022-10-21

申请人： Eve Power Co., Ltd.

发明人： LI, Shangyi ,  YUE, Liangliang ,  WANG, Zhiming ,  CHEN, Min

IPC分类号： H01M50/503

摘要： A current collecting plate and a battery are provided in the present application, where the current collecting plate is applied to a battery including a battery cell and a housing, the current collecting plate includes a plate body and a buffer part, and at least two buffer parts are provided, each of the buffer parts is bent to form an abutment part, the abutment part is protruded from a side of the plate body away from the battery cell, the abutment part abuts against the housing, and one end of either of two adjacent ones of the buffer parts is connected through a weak part, and another end of the buffer part away from the weak part is connected with the plate body.

公开(公告)号：EP4160778A1

公开(公告)日：2023-04-05

申请号：EP22803986.3

申请日：2022-05-18

申请人： Eve Power Co., Ltd.

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

IPC分类号： H01M10/058 ,  H01M50/559 ,  H01M50/528

摘要： Provided are an assembled structure of a pole and a pole current collector disk. The assembled structure includes a positive pole, a positive current collector disk, a first insulating member and a second insulating member, where the second insulating member is disposed between the positive current collector disk and the first insulating member. The positive pole includes a conductive end and a connection end, the conductive end and the connection end are connected through the connection rod. The connection rod sequentially penetrates through the first insulating member and the second insulating member, the first insulating member is closer to the conductive end than the second insulating member, and an accommodating space is formed between the first insulating member and the second insulating member. The positive current collector disk includes a welding disk and a conductive protrusion, the conductive protrusion is disposed on an end surface of the welding disk facing the second insulating member, and an end surface of the connection end facing the positive current collector disk is provided with a first groove, a contact portion of the positive current collector disk and the positive pole is only an end surface of the conductive protrusion facing away the welding disk and a groove bottom surface of the first groove. Further provided herein is a battery, the battery is provided with the assembled structure of the pole and the pole current collector disk described above.

公开(公告)号：EP4148881A1

公开(公告)日：2023-03-15

申请号：EP22804070.5

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： H01M50/169 ,  H01M50/545

摘要： Provided is a cylindrical lithium-ion battery including a negative cap and a cylindrical case. A jellyroll and a negative current collector are arranged inside the case. An annular inwardly-concaved groove with which sidewall of an end of the case is provided arranged circumferentially around a central axis of the case, and forms an annular protrusion at the inside of the case. The negative current collector is connected to a negative electrode of the jellyroll. A portion, located below the annular inwardly-concaved groove, of the case is bent to form an annular engaging groove, an opening of the annular engaging groove faces the interior of the case, the periphery of the negative cap is arranged in the annular engaging groove, and a bottom surface of the negative cap and the annular engaging groove are connected in a sealed manner by laser welding.

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：EP4297175A1

公开(公告)日：2023-12-27

申请号：EP22821842.6

申请日：2022-10-14

申请人： Eve Power Co., Ltd.

发明人： HUANG, Liming ,  YUE, Liangliang ,  CHEN, Min

IPC分类号： H01M50/55

摘要： A battery is provided. The battery includes a housing, a jellyroll, a first current collector plate, a second current collector plate, an output terminal, and a cover board. A top wall of the housing is provided with a through hole, and a bottom of the housing is provided with an open end. A first tab and a second tab are provided on ends of the jellyroll respectively in an axial direction of the jellyroll. The first tab is connected to the first current collector plate, and the second tab is connected to the housing via the second current collector plate. The output terminal is sealed in the through hole and connected to the first current collector plate. The cover board is sealed and insulated at the open end of the bottom of the housing.

公开(公告)号：EP4276987A1

公开(公告)日：2023-11-15

申请号：EP22818598.9

申请日：2022-09-23

申请人： Eve Power Co., Ltd.

发明人： YUE, Liangliang ,  HUANG, Liming ,  XU, Yuebin ,  CHEN, Min ,  XIAO, Tianli

IPC分类号： H01M50/152

摘要： The present application discloses a battery comprising a housing, a battery cell and an end cover structure. One end of the housing has an opening, through which the battery cell may be provided in the housing, and the end cover structure covers the opening to close the housing while being electrically connected to the battery cell. Preferably, one end of the battery cell comprises a first electrode tab and a second electrode tab with different electrode polarities, the first and second electrode tabs are both towards the opening when the battery cell is provided in the housing, and the end cover structure comprises a first electrode connecting part and a second electrode connecting part, the first electrode connecting part is electrically connected to the first electrode tab and the second electrode connecting part is electrically connected to the second electrode tab when the end cover structure covers the opening, the first electrode connecting part and the second electrode connecting part are connected by insulating sealing part.